hosted squads working on node

.gitignore

@@ -0,0 +1,6 @@
+cmd/data
+cmd/node
+cmd/node.linux
+cmd/config/102ed1ef-61cb-40fa-be62-77abe79aff95
+cmd/config/102ed1ef-61cb-40fa-be62-77abe79aff95.pub
+cmd/config/node_config.json

chatGrpcMiddleware.go

@@ -3,6 +3,7 @@ package localserver
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"strconv"
 
 	"github.com/pion/webrtc/v3"
@@ -97,6 +98,7 @@ func (cm *ChatGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 		case SYNC_CHAT:
 			//todo: implement sync chat
 		case CHAT_WEBRTC_OFFER:
+			fmt.Println("got offer in chat")
 			if err := validateRequest(payload, SDP); err != nil {
 				errCh <- err
 				return
@@ -115,6 +117,7 @@ func (cm *ChatGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 				return
 			}
 		case CHAT_WEBRTC_COUNTER_OFFER:
+			fmt.Println("got counter offer in chat")
 			if err := cm.Manager.HandleCounterOffer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
 				errCh <- err
 				return
@@ -138,6 +141,7 @@ func (cm *ChatGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 				return
 			}
 		case CHAT_WEBRTC_CANDIDATE:
+			fmt.Println("got candidate in chat")
 			if err := validateRequest(payload, "candidate", "sdpMLineIndex", "sdpMid"); err != nil {
 				errCh <- err
 				return
@@ -160,10 +164,14 @@ func (cm *ChatGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 				return
 			}
 		default:
+			fmt.Println("no request for chat grpc middleware")
+			fmt.Println(req.Type)
+			fmt.Println(req.Payload)
 			logger.Println("no request for chats grpc middleware")
 			logger.Println(payload)
 			logger.Println(req.Type)
 		}
+		done <- struct{}{}
 	}()
 	select {
 	case <-ctx.Done():

chatManager.go

@@ -15,6 +15,12 @@ import (
 	"github.com/pion/webrtc/v3"
 )
 
+const (
+	UPDATE_UNREAD_COUNT          = "update_unread_count"
+	UPDATE_LAST_INTERACTION_TIME = "update_last_interaction_time"
+	DISCONNECT_USER_FROM_CHAT    = "disconnect_user_from_chat"
+)
+
 type ChatsManager struct {
 	ID                 string
 	Chats              map[string]*NodeChat
@@ -45,8 +51,17 @@ type NodeChat struct {
 
 func NewNodeChat(id, name, initiator, target, initiatorHost, targetHost string, initialized bool) (chat *NodeChat, err error) {
 	dataChannels, dataChannelFlag := make(map[string]*DataChannel), uint32(0)
-	nodeChatMessageHandler, err := NewNodeChatChannelsHandler(chat.ID, chat.ID, chat.Initiator, chat.Target, chat.InitiatorHost, chat.TargetHost, dataChannels, &dataChannelFlag)
+	nodeChatMessageHandler, err := NewNodeChatChannelsHandler(id, id, initiator, target, initiatorHost, targetHost, dataChannels, &dataChannelFlag)
-	chatScheduler, e := NewChatRequestScheduler(initiator, target, initiatorHost, targetHost, nodeChatMessageHandler)
+	if err != nil {
+		fmt.Println("error occured there")
+		fmt.Println(err)
+		return
+	}
+	nodeChatNotificationsHandler, err := NewChatNotificationsHandler(id, initiator, target, initiatorHost, targetHost, dataChannels, &dataChannelFlag)
+	if err != nil {
+		return
+	}
+	chatScheduler, e := NewChatRequestScheduler(initiator, target, initiatorHost, targetHost, nodeChatMessageHandler, nodeChatNotificationsHandler)
 	go func() {
 		for schedErr := range e {
 			logger.Println("chat error:", schedErr)
@@ -148,11 +163,13 @@ func (cm *ChatsManager) fetchChats(nodeId string, token string) (chats []*NodeCh
 	if err = json.Unmarshal(bs, &payload); err != nil {
 		return
 	}
-	b, err := json.Marshal(payload["Chats"])
+	fmt.Println(payload)
+	b, err := json.Marshal(payload["chats"])
 	if err != nil {
 		return
 	}
 	err = json.Unmarshal(b, &chats)
+
 	return
 }
 
@@ -210,8 +227,12 @@ func (cm *ChatsManager) CreateOffer(ctx context.Context, target string, from str
 func (cm *ChatsManager) HandleOffer(ctx context.Context, from string, to string, req map[string]string, cb OnICECandidateFunc) (err error) {
 	done, errCh := make(chan struct{}), make(chan error)
 	go func() {
-		if _, ok := cm.Chats[req["chatId"]]; !ok {
+		if id, ok := cm.Chats[req["chatId"]]; !ok {
 			err = fmt.Errorf("no corresponding chat")
+			fmt.Println(req["chatId"])
+			fmt.Println(cm.Chats)
+			fmt.Println(id)
+			fmt.Println(err)
 			errCh <- err
 			return
 		}
@@ -374,7 +395,7 @@ func (cm *ChatsManager) createPeerConnection(target string, from string, chatId
 	config := webrtc.Configuration{
 		ICEServers: []webrtc.ICEServer{
 			{
-				URLs: []string{"stun:stun.l.google.com:19302", "stun:stunserver.org:3478"},
+				URLs: []string{"stun:stun.l.google.com:19302"},
 			},
 		},
 		SDPSemantics: webrtc.SDPSemanticsUnifiedPlan,
@@ -511,6 +532,7 @@ func (cm *ChatsManager) createPeerConnection(target string, from string, chatId
 						logger.Println(err)
 						return
 					}
+					fmt.Println("incoming req", req)
 					logger.Println("incoming request", req)
 					go func() {
 						reqChan <- &req
@@ -699,7 +721,7 @@ func (cm *ChatsManager) notifyLeavingMember(userId, chatId, hostId string) (err
 	em := NewEncryptionManager()
 	sig := em.SignRequestHMAC(NodeID)
 	body, err := json.Marshal(map[string]interface{}{
-		"type":     "DISCONNECT_CHAT_MEMBER",
+		"type":     DISCONNECT_USER_FROM_CHAT,
 		"mac":      sig,
 		"from":     NodeID,
 		"peerType": "node",

chatMessagesDBHandler.go

@@ -259,6 +259,7 @@ func (ncdbh *NodeChatDBHandler) ListChatFiles(lastIndex int, limit int) (chatMes
 						return err
 					}
 					if chatMessage.File != nil {
+						chatMessage.File.ID = chatMessage.ID
 						chatMessages = append(chatMessages, chatMessage.File)
 						l = lastIndex - x
 						y++

chatMessagesHandler.go

@@ -1,10 +1,11 @@
 package localserver
 
 import (
+	"bytes"
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/fs"
+	"io"
 	"os"
 	"path/filepath"
 	"strings"
@@ -51,8 +52,8 @@ type NodeChatChannelsHandler[T ZippytalFSInstance] struct {
 }
 
 func NewNodeChatChannelsHandler(chatID, chatName, initiator, target, initiatorHostId, targetHostId string, dataChannels map[string]*DataChannel, flag *uint32) (nodeChatsHandler *NodeChatChannelsHandler[*NodeChatFSInstance], err error) {
-	var dirs []fs.DirEntry
+
-	dirs, err = os.ReadDir(filepath.Join(dataPath, "data", "chats", chatID))
+	_, err = os.ReadDir(filepath.Join(dataPath, "data", "chats", chatID))
 	if err != nil {
 		if os.IsNotExist(err) {
 			logger.Printf("creating chat directory for chat %s...\n", chatID)
@@ -80,7 +81,7 @@ func NewNodeChatChannelsHandler(chatID, chatName, initiator, target, initiatorHo
 				return nil, writeErr
 			}
 			_ = file.Close()
-			dirs, err = os.ReadDir(filepath.Join(dataPath, "data", "chats", chatID))
+			_, err = os.ReadDir(filepath.Join(dataPath, "data", "chats"))
 			if err != nil {
 				return nil, err
 			}
@@ -89,16 +90,13 @@ func NewNodeChatChannelsHandler(chatID, chatName, initiator, target, initiatorHo
 		}
 	}
 	chats := make(map[string]*NodeChatChannel)
-	for _, chat := range dirs {
+
-		if strings.HasPrefix(chat.Name(), ".") {
+	nodeChatDBHandler, err := NewNodeChatDBHandler(chatID)
-			continue
-		}
-		nodeChatDBHandler, err := NewNodeChatDBHandler(chat.Name())
 	if err != nil {
 		return nil, err
 	}
 	var bs []byte
-		bs, err = os.ReadFile(filepath.Join(dataPath, "data", "chats", chat.Name(), "chatConfig.json"))
+	bs, err = os.ReadFile(filepath.Join(dataPath, "data", "chats", chatID, "chatConfig.json"))
 	if err != nil {
 		return nil, err
 	}
@@ -115,7 +113,7 @@ func NewNodeChatChannelsHandler(chatID, chatName, initiator, target, initiatorHo
 	c.DB = nodeChatDBHandler
 	c.Tracking = nodeChatTracking
 	chats[c.ID] = &c
-	}
+
 	chatFlag := uint32(0)
 	chatFSFlag := uint32(0)
 	chatDCFlag := uint32(0)
@@ -134,7 +132,7 @@ func NewNodeChatChannelsHandler(chatID, chatName, initiator, target, initiatorHo
 	return
 }
 
-func (zch *NodeChatChannelsHandler[T]) sendZoneRequest(reqType string, from string, payload map[string]interface{}) {
+func (zch *NodeChatChannelsHandler[T]) sendChatRequest(reqType string, from string, payload map[string]interface{}) {
 	go func() {
 		for _, rc := range zch.reqChans {
 			rc <- &ChatRequest{
@@ -186,6 +184,8 @@ func (zch *NodeChatChannelsHandler[T]) Init(ctx context.Context, initiator, targ
 
 func (zch *NodeChatChannelsHandler[T]) Subscribe(ctx context.Context, publisher <-chan *ChatRequest) (reqChan chan *ChatRequest, done chan struct{}, errCh chan error) {
 	reqChan, done, errCh = make(chan *ChatRequest), make(chan struct{}), make(chan error)
+	fmt.Println("subscribing...")
+	fmt.Println(zch)
 	zch.reqChans = append(zch.reqChans, reqChan)
 	go func() {
 		for {
@@ -200,6 +200,7 @@ func (zch *NodeChatChannelsHandler[T]) Subscribe(ctx context.Context, publisher
 			}
 		}
 	}()
+	fmt.Println(zch.reqChans)
 	return
 }
 
@@ -351,7 +352,7 @@ func (zch *NodeChatChannelsHandler[T]) ListLatestChatMessages(userId, chatID str
 	success, e := zch.sendDataChannelMessage(CHAT_MESSAGE_LIST, "node", userId, map[string]interface{}{
 		"done":         done || i <= 0,
 		"lastIndex":    i - 1,
-		"chatID":       chatID,
+		"chatId":       chatID,
 		"chatMessages": list,
 	})
 	select {
@@ -359,6 +360,9 @@ func (zch *NodeChatChannelsHandler[T]) ListLatestChatMessages(userId, chatID str
 		fmt.Println("done getting latest messages")
 	case err = <-e:
 	}
+	go func() {
+		_ = zch.signalUnreadCount(context.Background(), userId, 0)
+	}()
 	return
 }
 
@@ -376,7 +380,7 @@ func (zch *NodeChatChannelsHandler[T]) ListLatestChatFiles(userId, chatID string
 	done, e := zch.sendDataChannelMessage(CHAT_FILES_LIST, "node", userId, map[string]interface{}{
 		"done":         i <= 0,
 		"lastIndex":    i,
-		"chatID":       chatID,
+		"chatId":       chatID,
 		"chatMessages": list,
 	})
 	select {
@@ -392,6 +396,7 @@ func (zch *NodeChatChannelsHandler[T]) AddChatMessage(userId, chatID, content st
 		return
 	}
 	chat := zch.Chats[chatID]
+	dateTime := time.Now().Format(time.RFC3339)
 	chatMessage := &ChatMessage{
 		Content:    content,
 		From:       userId,
@@ -399,7 +404,7 @@ func (zch *NodeChatChannelsHandler[T]) AddChatMessage(userId, chatID, content st
 		ResponseOf: nil,
 		File:       file,
 		Tags:       make([]string, 0),
-		Date:       time.Now().Format("Mon, 02 Jan 2006 15:04:05 MST"),
+		Date:       dateTime,
 	}
 	if err = atomicallyExecute(zch.ChatFlag, func() (err error) {
 		if chat, ok := zch.Chats[chatID]; ok {
@@ -416,7 +421,7 @@ func (zch *NodeChatChannelsHandler[T]) AddChatMessage(userId, chatID, content st
 				return
 			}
 			chatMessage.ID = zch.Chats[chatID].DB.PreviousId
-
+			_ = chat.Tracking.SetUserLastIndex(userId, chatMessage.ID)
 		} else {
 			err = fmt.Errorf("no corresponding chats")
 		}
@@ -425,13 +430,14 @@ func (zch *NodeChatChannelsHandler[T]) AddChatMessage(userId, chatID, content st
 		return
 	}
 
-	notifyActivity := func(done <-chan struct{}, e <-chan error, target, initiator string) {
+	notifyActivity := func(done <-chan struct{}, e <-chan error, destination string) {
 		select {
 		case <-done:
+			fmt.Println(destination, "is connected to this chat")
 		case <-e:
 			_ = atomicallyExecute(zch.ChatFlag, func() (err error) {
 				if chat, ok := zch.Chats[chatID]; ok {
-					li, err := chat.Tracking.GetUserLastIndex(target)
+					li, err := chat.Tracking.GetUserLastIndex(destination)
 					if err != nil {
 						return err
 					}
@@ -439,23 +445,40 @@ func (zch *NodeChatChannelsHandler[T]) AddChatMessage(userId, chatID, content st
 					if err != nil {
 						return err
 					}
-
+					fmt.Println("********_**_*")
+					fmt.Println(count)
 					bs, err := json.Marshal(map[string]any{
-						"chatID":   chatID,
+						"chatId":   chatID,
 						"chatHost": NodeID,
 					})
 					if err != nil {
 						return err
 					}
-					zch.sendZoneRequest(CREATE_NOTIFICATION, "node", map[string]interface{}{
+					fmt.Println("noooo errrrrooooorr")
+					fmt.Println(destination)
+					fmt.Println(userId)
+					zch.sendChatRequest(CREATE_NOTIFICATION, "node", map[string]interface{}{
 						"type":       "new_chat_message",
-						"title":      "Unread messages 👀",
+						"title":      fmt.Sprintf("%d Unread messages 👀", count),
-						"body":       fmt.Sprintf("%d new messages from %s", count, initiator),
+						"body":       fmt.Sprintf("%d new messages from %s", count, userId),
 						"isPushed":   true,
 						"payload":    string(bs),
-						"recipients": []string{target},
+						"recipients": []string{destination},
 					})
+					go func() {
+						if e := zch.signalUnreadCount(context.Background(), destination, count); e != nil {
+							fmt.Println(e)
+						}
+					}()
+					fmt.Println("done without error 1")
+					go func() {
+						if e := zch.signalLastInteractionTime(context.Background(), dateTime); e != nil {
+							fmt.Println(e)
+						}
+					}()
+					fmt.Println("done without error 2")
 
+					fmt.Println("sending notification")
 				}
 				return
 			})
@@ -463,14 +486,17 @@ func (zch *NodeChatChannelsHandler[T]) AddChatMessage(userId, chatID, content st
 	}
 	d1, e1 := zch.sendDataChannelMessage(NEW_CHAT_MESSAGE, "node", chat.Target, map[string]interface{}{
 		"chatMessage": chatMessage,
-		"chatID":      chatID,
+		"chatId":      chatID,
 	})
-	go notifyActivity(d1, e1, chat.Target, chat.Initiator)
 	d2, e2 := zch.sendDataChannelMessage(NEW_CHAT_MESSAGE, "node", chat.Initiator, map[string]interface{}{
 		"chatMessage": chatMessage,
-		"chatID":      chatID,
+		"chatId":      chatID,
 	})
-	go notifyActivity(d2, e2, chat.Initiator, chat.Target)
+	if userId == chat.Target {
+		go notifyActivity(d2, e2, chat.Initiator)
+	} else {
+		go notifyActivity(d1, e1, chat.Target)
+	}
 	return
 }
 
@@ -502,7 +528,7 @@ func (zch *NodeChatChannelsHandler[T]) DeleteChatMessage(key uint64, chatID stri
 		}
 		for _, member := range [2]string{chat.Initiator, chat.Target} {
 			d, e := zch.sendDataChannelMessage(CHAT_MESSAGE_DELETED, "node", member, map[string]interface{}{
-				"chatID":    chatID,
+				"chatId":    chatID,
 				"messageId": key,
 			})
 			select {
@@ -542,7 +568,7 @@ func (zch *NodeChatChannelsHandler[T]) UpdateChatMessage(key uint64, chatID, new
 		}
 		for _, member := range [2]string{chat.Target, chat.Initiator} {
 			d, e := zch.sendDataChannelMessage(CHAT_MESSAGE_EDITED, "node", member, map[string]interface{}{
-				"chatID":     chatID,
+				"chatId":     chatID,
 				"messageId":  key,
 				"newContent": newContent,
 			})
@@ -570,7 +596,7 @@ func (zch *NodeChatChannelsHandler[T]) DeleteChatFile(key uint64, fileName, chat
 		}
 		for _, member := range [2]string{chat.Target, chat.Initiator} {
 			d, e := zch.sendDataChannelMessage(CHAT_FILE_DELETED, "node", member, map[string]interface{}{
-				"chatID":   chatID,
+				"chatId":   chatID,
 				"fileId":   key,
 				"fileName": fileName,
 			})
@@ -705,6 +731,24 @@ func (zch *NodeChatChannelsHandler[T]) handleDataChannel(ctx context.Context, dc
 			zch.ChatDataChannels[command[1]] = dc
 			return
 		})
+		dc.DataChannel.OnOpen(func() {
+			bs, err := json.Marshal(map[string]any{
+				"type": "chat_init",
+				"from": NodeID,
+				"to":   command[1],
+				"payload": map[string]any{
+					"chatId": zch.ChatID,
+				},
+			})
+			if err != nil {
+				fmt.Println(err)
+			}
+			_ = dc.DataChannel.SendText(string(bs))
+		})
+		dc.DataChannel.OnMessage(func(msg webrtc.DataChannelMessage) {
+			fmt.Println("received message there")
+			fmt.Println(msg.Data)
+		})
 		dc.DataChannel.OnClose(func() {
 			fmt.Println("closing gratefully chat dc...")
 			_ = atomicallyExecute(zch.ChatDataChannelsFlag, func() (err error) {
@@ -723,8 +767,65 @@ func (zch *NodeChatChannelsHandler[T]) handleDataChannel(ctx context.Context, dc
 	return
 }
 
+func (zch *NodeChatChannelsHandler[T]) signalUnreadCount(ctx context.Context, userId string, count uint) (err error) {
+	fmt.Println("this function has been called")
+	em := NewEncryptionManager()
+	sig := em.SignRequestHMAC(NodeID)
+	body, err := json.Marshal(map[string]interface{}{
+		"type":     UPDATE_UNREAD_COUNT,
+		"mac":      sig,
+		"from":     NodeID,
+		"peerType": "node",
+		"payload": map[string]string{
+			"chatId": zch.ChatID,
+			"userId": userId,
+			"count":  fmt.Sprintf("%d", count),
+		},
+	})
+	if err != nil {
+		return
+	}
+	_, err = HTTPClient.Post("https://dev.zippytal.com/req", "application/json", bytes.NewReader(body))
+	if err != nil {
+		logger.Println("error come from there inn chat manager")
+		return
+	}
+	return
+}
+
+func (zch *NodeChatChannelsHandler[T]) signalLastInteractionTime(ctx context.Context, dateTime string) (err error) {
+	fmt.Println("this function has been called too")
+	em := NewEncryptionManager()
+	sig := em.SignRequestHMAC(NodeID)
+	body, err := json.Marshal(map[string]interface{}{
+		"type":     UPDATE_LAST_INTERACTION_TIME,
+		"mac":      sig,
+		"from":     NodeID,
+		"peerType": "node",
+		"payload": map[string]string{
+			"chatId":              zch.ChatID,
+			"lastInteractionTime": dateTime,
+		},
+	})
+	if err != nil {
+		return
+	}
+	res, err := HTTPClient.Post("https://dev.zippytal.com/req", "application/json", bytes.NewReader(body))
+	if err != nil {
+		logger.Println("error come from there inn chat manager")
+		return
+	}
+	_, err = io.ReadAll(res.Body)
+	if err != nil {
+		return
+	}
+	return
+}
+
 func (zch *NodeChatChannelsHandler[T]) handleChatRequest(ctx context.Context, req *ChatRequest) (err error) {
 	logger.Println("got request in zone chat handler", req)
+
+	fmt.Println(req)
 	switch req.ReqType {
 	case LEAVE_CHAT:
 		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
@@ -732,46 +833,46 @@ func (zch *NodeChatChannelsHandler[T]) handleChatRequest(ctx context.Context, re
 		}
 		// err = zch.LeaveChatFSInstance(req.Payload["userId"].(string))
 	case DELETE_CHAT:
-		if err = VerifyFieldsString(req.Payload, "chatID"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
 			return
 		}
-		err = zch.DeleteChat(req.Payload["chatID"].(string))
+		err = zch.DeleteChat(req.Payload["chatId"].(string))
 	case CREATE_CHAT:
-		if err = VerifyFieldsString(req.Payload, "chatID", "owner", "chatType"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId", "owner", "chatType"); err != nil {
 			return
 		}
 		if err = VerifyFieldsSliceInterface(req.Payload, "members"); err != nil {
 			return
 		}
-		err = zch.AddNewChat(req.Payload["chatID"].(string), req.Payload["initiator"].(string), req.Payload["target"].(string), req.Payload["initiatorHostId"].(string), req.Payload["targetHostId"].(string))
+		err = zch.AddNewChat(req.Payload["chatId"].(string), req.Payload["initiator"].(string), req.Payload["target"].(string), req.Payload["initiatorHostId"].(string), req.Payload["targetHostId"].(string))
 	case GET_CHATS:
 		err = zch.GetChats(req.From)
 	case LIST_LATEST_CHATS:
-		if err = VerifyFieldsString(req.Payload, "chatID"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
 			return
 		}
 		if err = VerifyFieldsFloat64(req.Payload, "lastIndex", "limit"); err != nil {
 			return
 		}
-		err = zch.ListLatestChatMessages(req.From, req.Payload["chatID"].(string), req.Payload["lastIndex"].(float64), req.Payload["limit"].(float64))
+		err = zch.ListLatestChatMessages(req.From, req.Payload["chatId"].(string), req.Payload["lastIndex"].(float64), req.Payload["limit"].(float64))
 		return
 	case LIST_LATEST_FILES:
-		if err = VerifyFieldsString(req.Payload, "chatID"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
 			return
 		}
 		if err = VerifyFieldsFloat64(req.Payload, "lastIndex", "limit"); err != nil {
 			return
 		}
-		err = zch.ListLatestChatFiles(req.From, req.Payload["chatID"].(string), req.Payload["lastIndex"].(float64), req.Payload["limit"].(float64))
+		err = zch.ListLatestChatFiles(req.From, req.Payload["chatId"].(string), req.Payload["lastIndex"].(float64), req.Payload["limit"].(float64))
 		return
 	case READ_LATEST_MESSAGE:
-		if err = VerifyFieldsString(req.Payload, "chatID"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
 			return
 		}
-		err = zch.ReadLastMessage(req.From, req.Payload["chatID"].(string))
+		err = zch.ReadLastMessage(req.From, req.Payload["chatId"].(string))
 	case ADD_CHAT_MESSAGE:
 		logger.Println("got request in zone chat handler", req)
-		if err = VerifyFieldsString(req.Payload, "chatID", "content"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId", "content"); err != nil {
 			return
 		}
 		if err = VerifyFieldsBool(req.Payload, "isResponse"); err != nil {
@@ -797,31 +898,31 @@ func (zch *NodeChatChannelsHandler[T]) handleChatRequest(ctx context.Context, re
 			}
 			file = &f
 		}
-		err = zch.AddChatMessage(req.From, req.Payload["chatID"].(string), req.Payload["content"].(string), req.Payload["isResponse"].(bool), parentChatId, file)
+		err = zch.AddChatMessage(req.From, req.Payload["chatId"].(string), req.Payload["content"].(string), req.Payload["isResponse"].(bool), parentChatId, file)
 	case DELETE_CHAT_MESSAGE:
-		if err = VerifyFieldsString(req.Payload, "chatID"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
 			return
 		}
 		if err = VerifyFieldsFloat64(req.Payload, "messageId"); err != nil {
 			return
 		}
-		err = zch.DeleteChatMessage(uint64(req.Payload["messageId"].(float64)), req.Payload["chatID"].(string))
+		err = zch.DeleteChatMessage(uint64(req.Payload["messageId"].(float64)), req.Payload["chatId"].(string))
 	case EDIT_CHAT_MESSAGE:
-		if err = VerifyFieldsString(req.Payload, "chatID", "newContent"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId", "newContent"); err != nil {
 			return
 		}
 		if err = VerifyFieldsFloat64(req.Payload, "messageId"); err != nil {
 			return
 		}
-		err = zch.UpdateChatMessage(uint64(req.Payload["messageId"].(float64)), req.Payload["chatID"].(string), req.Payload["newContent"].(string))
+		err = zch.UpdateChatMessage(uint64(req.Payload["messageId"].(float64)), req.Payload["chatId"].(string), req.Payload["newContent"].(string))
 	case DELETE_CHAT_FILE:
-		if err = VerifyFieldsString(req.Payload, "chatID", "fileName"); err != nil {
+		if err = VerifyFieldsString(req.Payload, "chatId", "fileName"); err != nil {
 			return
 		}
 		if err = VerifyFieldsFloat64(req.Payload, "fileId"); err != nil {
 			return
 		}
-		err = zch.DeleteChatFile(uint64(req.Payload["fileId"].(float64)), req.Payload["fileName"].(string), req.Payload["chatID"].(string))
+		err = zch.DeleteChatFile(uint64(req.Payload["fileId"].(float64)), req.Payload["fileName"].(string), req.Payload["chatId"].(string))
 	}
 	return
 }

chatNotificationsHandler.go

@@ -0,0 +1,133 @@
+package localserver
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+type ChatNotificationsHandler struct {
+	ChatId        string
+	Initiator     string
+	Target        string
+	InitiatorHost string
+	TargetHost    string
+	DataChannels  map[string]*DataChannel
+	Flag          *uint32
+	//DB            *ChatNotificationDBHandler
+	Publishers []<-chan *ChatRequest
+	reqChans   []chan<- *ChatRequest
+}
+
+func NewChatNotificationsHandler(chatId, initiator, target, initiatorHost, targetHost string, dataChannels map[string]*DataChannel, flag *uint32) (chatNotificationsHandler *ChatNotificationsHandler, err error) {
+	// if _, dirErr := os.ReadDir(filepath.Join(dataPath, "data", "zones", zoneId, "notifications")); os.IsNotExist(dirErr) {
+	// 	dirErr := os.MkdirAll(filepath.Join(dataPath, "data", "zones", zoneId, "notifications"), 0700)
+	// 	if dirErr != nil {
+	// 		return
+	// 	}
+	// }
+	chatNotificationsHandler = &ChatNotificationsHandler{
+		ChatId:        chatId,
+		Initiator:     initiator,
+		Target:        target,
+		InitiatorHost: initiatorHost,
+		TargetHost:    targetHost,
+		DataChannels:  dataChannels,
+		Flag:          flag,
+	}
+	return
+}
+
+func (znh *ChatNotificationsHandler) Init(ctx context.Context, initiator, target, initiatorNodeID, targetNodeID string) (err error) {
+	//? initialization code here
+	return
+}
+
+func (znh *ChatNotificationsHandler) Subscribe(ctx context.Context, publisher <-chan *ChatRequest) (reqChan chan *ChatRequest, done chan struct{}, errCh chan error) {
+	reqChan, done, errCh = make(chan *ChatRequest), make(chan struct{}), make(chan error)
+	znh.reqChans = append(znh.reqChans, reqChan)
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				done <- struct{}{}
+				return
+			case req := <-publisher:
+				if err := znh.handleChatRequest(ctx, req); err != nil {
+					errCh <- err
+				}
+			}
+		}
+	}()
+	return
+}
+
+func (znh *ChatNotificationsHandler) ListNotifications(userId string) {}
+
+func (znh *ChatNotificationsHandler) CreateNotification(notificationType, title, body, payload string, isPushed bool, recipients ...string) (err error) {
+	if isPushed {
+		err = znh.PushNotification(notificationType, title, body, payload, recipients...)
+	}
+	return
+}
+
+func (znh *ChatNotificationsHandler) DeleteNotification() {}
+
+func (znh *ChatNotificationsHandler) PushNotification(notificationType, title, body, payload string, recipients ...string) (err error) {
+	fmt.Println("*E*Z*E*Z*Z*E*Z**E*Z**E**Z*E****ZD*Z*")
+	fmt.Println("this function has been called")
+	em := NewEncryptionManager()
+	sig := em.SignRequestHMAC(NodeID)
+	b, err := json.Marshal(map[string]interface{}{
+		"type":     NOTIFY,
+		"mac":      sig,
+		"from":     NodeID,
+		"peerType": "node",
+		"payload": map[string]interface{}{
+			"type":       notificationType,
+			"title":      title,
+			"body":       body,
+			"recipients": recipients,
+			"payload":    payload,
+		},
+	})
+	if err != nil {
+		return
+	}
+	_, err = http.Post("https://dev.zippytal.com/req", "application/json", bytes.NewReader(b))
+	if err != nil {
+		fmt.Println("error inn notification sender", err)
+		logger.Println("error come from there in zone manager")
+		return
+	}
+	return
+}
+
+func (znh ChatNotificationsHandler) handleDataChannel(ctx context.Context, dc *DataChannel) (catched bool) {
+	return
+}
+
+func (znh *ChatNotificationsHandler) handleChatRequest(ctx context.Context, req *ChatRequest) (err error) {
+	switch req.ReqType {
+	case CREATE_NOTIFICATION:
+		if err = VerifyFieldsString(req.Payload, "type", "title", "body", "payload"); err != nil {
+			return
+		}
+		if err = VerifyFieldsBool(req.Payload, "isPushed"); err != nil {
+			return
+		}
+		if _, ok := req.Payload["recipients"]; !ok {
+			err = fmt.Errorf("no field recipient in payload")
+			return
+		}
+		if _, ok := req.Payload["recipients"].([]string); !ok {
+			err = fmt.Errorf(" field recipient in payload is wrong type")
+			return
+		}
+
+		err = znh.CreateNotification(req.Payload["type"].(string), req.Payload["title"].(string), req.Payload["body"].(string), req.Payload["payload"].(string), req.Payload["isPushed"].(bool), req.Payload["recipients"].([]string)...)
+	}
+	return
+}

chatRequestScheduler.go

@@ -2,6 +2,7 @@ package localserver
 
 import (
 	"context"
+	"fmt"
 	"sync"
 	"time"
 )
@@ -41,6 +42,8 @@ func NewChatRequestScheduler(initiator, target, initiatorNodeID, targetNodeID st
 		publisher := make(chan *ChatRequest, 100)
 		chatRequestScheduler.handlersPublishers = append(chatRequestScheduler.handlersPublishers, publisher)
 		chatRequestScheduler.handlersDataChannelDispatchCallbacks = append(chatRequestScheduler.handlersDataChannelDispatchCallbacks, handler.handleDataChannel)
+		fmt.Println("this is the fking handler")
+		fmt.Println(handler)
 		reqChan, done, errCh := handler.Subscribe(context.Background(), publisher)
 		go func(done <-chan struct{}, errCh <-chan error) {
 			for {
@@ -76,16 +79,16 @@ func NewChatRequestScheduler(initiator, target, initiatorNodeID, targetNodeID st
 
 func (crs *ChatRequestScheduler) Schedule(reqChan <-chan *ChatRequest) (done chan struct{}, errCh chan error) {
 	done, errCh = make(chan struct{}), make(chan error)
+	go func() {
 		for req := range reqChan {
 			go func(r *ChatRequest) {
 				for _, publisher := range crs.handlersPublishers {
-				go func(p chan<- *ChatRequest) {
+					publisher <- r
-					p <- r
-				}(publisher)
 				}
 			}(req)
 		}
-
+		done <- struct{}{}
+	}()
 	return
 }
 

cmd/data/zones/092f1f32-3152-45f6-a01e-b23c93f252b6/chats/general 💬/chatConfig.json

@@ -1,11 +1 @@
-{
+{"chatId":"general 💬","chatType":"public","owner":"Dev","members":["Dev","Loïs","Pascal","Dev2"]}
-  "chatId": "general 💬",
-  "chatType": "public",
-  "owner": "Dev",
-  "members": [
-    "Dev",
-    "Loïs",
-    "Pascal",
-    "Dev2"
-  ]
-}

cmd/data/zones/d1176d30-edd6-4565-81d4-733468b24a1b/users/KEYREGISTRY

@@ -1 +0,0 @@
-:§<>ª—¤ÓHè±7EÃ3Hello Badger

encryption_manager.go

@@ -90,6 +90,9 @@ func (em *EncryptionManager) LoadPrivKey(privKeyPath string, password string) (e
 	}
 	if password != "" {
 		privePemBytes, err = x509.DecryptPEMBlock(privPem, []byte(password))
+		if err != nil {
+			return
+		}
 	} else {
 		privePemBytes = privPem.Bytes
 	}

server.go

@@ -82,32 +82,34 @@ var dataPath = ""
 
 func NewLocalServer(grpcAddr uint, appDataPath, id, token string) (localServer *LocalServer, err error) {
 	dataPath = appDataPath
-	webRTCCallManager, err := NewWebRTCCallManager(id, token, NewWebrtcCallSoundManager(), NewWebrtcCallChatManager(), NewWebrtcCallVideoManager(), NewWebrtcCallFileManager())
-	if err != nil {
-		err = fmt.Errorf("error from call manager")
-		return
-	}
 	zoneManager, err := NewZoneManager(id, token)
 	if err != nil {
 		fmt.Println(err)
-		err = fmt.Errorf("error from zone manager")
 		return
 	}
-	// webrtcFsManager, err := NewWebrtcFsManager(NewP2PFSDatachannelManager())
+	chatManager, err := NewChatManager(id, token)
-	// if err != nil {
+	if err != nil {
-	// 	err = fmt.Errorf("error from fs manager")
+		fmt.Println(err)
-	// 	return
+		return
-	// }
+	}
-	webrtcGrpcMiddleware := NewWebRTCGrpcMiddleware(webRTCCallManager)
+	squadManager, err := NewSquadManager(id, token)
-	ZoneGrpcMiddleware := NewZoneGrpcMiddleware(zoneManager)
+	if err != nil {
-	signalingClientManager, err := NewGrpcClientManager(grpcAddr, id, webrtcGrpcMiddleware, ZoneGrpcMiddleware)
+		fmt.Println(err)
+		return
+	}
+	zoneGrpcMiddleware := NewZoneGrpcMiddleware(zoneManager)
+	chatGrpcMiddleware := NewChatGrpcMiddleware(chatManager)
+	squadGrpcMiddleware := NewSquadGrpcMiddleware(squadManager)
+	signalingClientManager, err := NewGrpcClientManager(grpcAddr, id, zoneGrpcMiddleware, chatGrpcMiddleware, squadGrpcMiddleware)
 	if err != nil {
 		return
 	}
-	webrtcGrpcMiddleware.stream = signalingClientManager.GrpcLinkClient
-	webRTCCallManager.stream = signalingClientManager.GrpcLinkClient
 	zoneManager.stream = signalingClientManager.GrpcLinkClient
-	ZoneGrpcMiddleware.stream = signalingClientManager.GrpcLinkClient
+	zoneGrpcMiddleware.stream = signalingClientManager.GrpcLinkClient
+	chatManager.stream = signalingClientManager.GrpcLinkClient
+	chatGrpcMiddleware.stream = signalingClientManager.GrpcLinkClient
+	squadManager.stream = signalingClientManager.GrpcLinkClient
+	squadGrpcMiddleware.stream = signalingClientManager.GrpcLinkClient
 	localServer = &LocalServer{
 		ID:                id,
 		GrpcClientManager: signalingClientManager,

squadChatDBHandler.go

@@ -0,0 +1,323 @@
+package localserver
+
+import (
+	"encoding/binary"
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sync"
+
+	"github.com/dgraph-io/badger/v3"
+)
+
+type SquadChatDBHandler struct {
+	SquadID    string
+	PreviousId uint64
+	ItemCount  uint64
+	db         func(func(*badger.DB) (err error)) (err error)
+	lock       *sync.RWMutex
+}
+
+func NewSquadChatDBHandler(squadId string) (squadChatDBHandler *SquadChatDBHandler, err error) {
+	squadChatDBHandler = &SquadChatDBHandler{
+		db: func(f func(*badger.DB) (err error)) (err error) {
+			db, err := badger.Open(badger.DefaultOptions(filepath.Join(dataPath, "data", "squads", squadId, "chat")).WithLogger(dbLogger))
+			if err != nil {
+				return
+			}
+			defer db.Close()
+			err = f(db)
+			return
+		},
+
+		SquadID: squadId,
+		lock:    new(sync.RWMutex),
+	}
+	err = squadChatDBHandler.db(func(d *badger.DB) (err error) {
+		err = d.View(func(txn *badger.Txn) error {
+			opt := badger.DefaultIteratorOptions
+			it := txn.NewIterator(opt)
+			defer it.Close()
+			var counter uint64 = 1
+			var itemCounter uint64 = 0
+			for it.Rewind(); it.Valid(); it.Next() {
+				item := it.Item()
+				if err = item.Value(func(val []byte) (err error) {
+					var chatMessage *ChatMessage
+					if err = json.Unmarshal(val, &chatMessage); err != nil {
+						return err
+					}
+					counter = chatMessage.ID
+					itemCounter++
+					return
+				}); err != nil {
+					return err
+				}
+			}
+			squadChatDBHandler.PreviousId = counter
+			squadChatDBHandler.ItemCount = itemCounter
+			return nil
+		})
+		return
+	})
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) calculateNewChatCount(previousId uint64) (count uint, err error) {
+	err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.View(func(txn *badger.Txn) error {
+			opt := badger.DefaultIteratorOptions
+			it := txn.NewIterator(opt)
+			defer it.Close()
+			count = 0
+			b := make([]byte, bufferSize)
+			binary.BigEndian.PutUint64(b, previousId)
+			if previousId == 0 || previousId == 1 {
+				count++
+				for it.Rewind(); it.Valid(); it.Next() {
+					count++
+				}
+			} else {
+				for it.Seek(b); it.Valid(); it.Next() {
+					count++
+				}
+			}
+			if count > 0 {
+				count--
+			}
+			return nil
+		})
+		return
+	})
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) revertPreviousId() (err error) {
+	err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.View(func(txn *badger.Txn) error {
+			opt := badger.DefaultIteratorOptions
+			opt.Reverse = true
+			it := txn.NewIterator(opt)
+			defer it.Close()
+			it.Rewind()
+			if it.Valid() {
+				item := it.Item()
+				if err = item.Value(func(val []byte) (err error) {
+					var chatMessage *ChatMessage
+					if err = json.Unmarshal(val, &chatMessage); err != nil {
+						return err
+					}
+					zcdbh.PreviousId = chatMessage.ID
+					return
+				}); err != nil {
+					return err
+				}
+			} else {
+				zcdbh.PreviousId = 1
+			}
+			return nil
+		})
+		return
+	})
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) AddNewChatMessage(chatMessage *ChatMessage) (err error) {
+	b := make([]byte, bufferSize)
+	zcdbh.PreviousId++
+	binary.BigEndian.PutUint64(b, zcdbh.PreviousId)
+	chatMessage.ID = zcdbh.PreviousId
+	bs, err := json.Marshal(chatMessage)
+	if err != nil {
+		return
+	}
+	if err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) (err error) {
+			if updateErr := txn.Set(b, bs); updateErr != nil {
+				return updateErr
+			}
+			return nil
+		})
+		return
+	}); err != nil {
+		return
+	}
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) DeleteChatMessage(key uint64) (err error) {
+	if err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) (err error) {
+			b := make([]byte, bufferSize)
+			binary.BigEndian.PutUint64(b, key)
+			if err = txn.Delete(b); err != nil {
+				return
+			}
+			zcdbh.ItemCount--
+			return
+		})
+		return
+	}); err != nil {
+		return
+	}
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) DeleteChatFile(filename string, key uint64) (err error) {
+	if err = zcdbh.DeleteChatMessage(key); err != nil {
+		return
+	}
+	err = os.Remove(filepath.Join(dataPath, "data", "squads", zcdbh.SquadID, "chat", "__files__", filename))
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) ListChatMessages(lastIndex int, limit int) (chatMessages []*ChatMessage, l int, done bool, err error) {
+	err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.View(func(txn *badger.Txn) (err error) {
+			opt := badger.DefaultIteratorOptions
+			opt.Reverse = true
+			it := txn.NewIterator(opt)
+			defer it.Close()
+			b := make([]byte, bufferSize)
+			if lastIndex <= 0 {
+				binary.BigEndian.PutUint64(b, uint64(zcdbh.PreviousId))
+			} else {
+				binary.BigEndian.PutUint64(b, uint64(lastIndex))
+			}
+			x := 0
+			defer func() {
+				if x < limit {
+					done = true
+				}
+			}()
+			chatMessages = make([]*ChatMessage, 0)
+			for it.Seek(b); it.Valid(); it.Next() {
+				if x >= limit {
+					break
+				}
+				item := it.Item()
+				if err = item.Value(func(val []byte) (err error) {
+					var chatMessage *ChatMessage
+					if err = json.Unmarshal(val, &chatMessage); err != nil {
+						return err
+					}
+					l = int(chatMessage.ID)
+					chatMessages = append(chatMessages, chatMessage)
+					return
+				}); err != nil {
+					return err
+				}
+				x++
+			}
+			return
+		})
+		return
+	})
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) ListChatFiles(lastIndex int, limit int) (chatMessages []*ChatFile, l int, err error) {
+	err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.View(func(txn *badger.Txn) (err error) {
+			opt := badger.DefaultIteratorOptions
+			opt.Reverse = true
+			it := txn.NewIterator(opt)
+			defer it.Close()
+			b := make([]byte, bufferSize)
+			var li int
+			if lastIndex <= 0 {
+				binary.BigEndian.PutUint64(b, uint64(zcdbh.PreviousId))
+				li = int(zcdbh.PreviousId)
+			} else {
+				binary.BigEndian.PutUint64(b, uint64(lastIndex))
+				li = lastIndex
+			}
+			x := 0
+			y := 0
+			defer func() {
+				if li > x {
+					l = li - x
+				} else if li == 0 {
+					if zcdbh.PreviousId > uint64(x) {
+						l = int(zcdbh.PreviousId) - x
+					} else {
+						l = 0
+					}
+				} else {
+					l = 0
+				}
+			}()
+			defer it.Close()
+			chatMessages = make([]*ChatFile, 0)
+			for it.Seek(b); it.Valid(); it.Next() {
+				if y >= limit || x >= int(zcdbh.PreviousId) {
+					break
+				}
+				item := it.Item()
+				if err = item.Value(func(val []byte) (err error) {
+					var chatMessage *ChatMessage
+					if err = json.Unmarshal(val, &chatMessage); err != nil {
+						return err
+					}
+					if chatMessage.File != nil {
+						chatMessages = append(chatMessages, chatMessage.File)
+						l = lastIndex - x
+						y++
+					}
+					return
+				}); err != nil {
+					return err
+				}
+				x++
+			}
+			return
+		})
+		return
+	})
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) GetChatMessage(index uint64) (chatMessage *ChatMessage, err error) {
+	err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.View(func(txn *badger.Txn) (err error) {
+			b := make([]byte, bufferSize)
+			binary.BigEndian.PutUint64(b, uint64(index))
+			item, err := txn.Get(b)
+			if err != nil {
+				return
+			}
+			err = item.Value(func(val []byte) error {
+				return json.Unmarshal(val, &chatMessage)
+			})
+			return
+		})
+		return
+	})
+	return
+}
+
+func (zcdbh *SquadChatDBHandler) ModifyChatMessage(key uint64, newContent string) (err error) {
+	b := make([]byte, bufferSize)
+	binary.BigEndian.PutUint64(b, key)
+	chatMessage, err := zcdbh.GetChatMessage(key)
+	if err != nil {
+		return
+	}
+	chatMessage.Content = newContent
+	bs, err := json.Marshal(chatMessage)
+	if err != nil {
+		return
+	}
+	if err = zcdbh.db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) (err error) {
+			if updateErr := txn.Set(b, bs); updateErr != nil {
+				return updateErr
+			}
+			return nil
+		})
+		return
+	}); err != nil {
+		return
+	}
+	return
+}

squadChatFSInstance.go

@@ -0,0 +1,178 @@
+package localserver
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+
+	"github.com/pion/webrtc/v3"
+)
+
+const (
+	SQUAD_CHAT_WEBRTC_OFFER                 ReqType = "squad_chat_offer"
+	SQUAD_CHAT_WEBRTC_ANSWER                ReqType = "squad_chat_answer"
+	SQUAD_CHAT_WEBRTC_RENNEGOTIATION_OFFER  ReqType = "squad_chat_rennegotiation_offer"
+	SQUAD_CHAT_WEBRTC_RENNEGOTIATION_ANSWER ReqType = "squad_chat_rennegotiation_answer"
+	SQUAD_CHAT_WEBRTC_COUNTER_OFFER         ReqType = "squad_chat_webrtc_counter_offer"
+	SQUAD_CHAT_WEBRTC_CANDIDATE             ReqType = "squad_chat_webrtc_candidate"
+)
+
+type SquadFSInstance struct {
+	SquadID          string              `json:"id"`
+	Owner            string              `json:"owner"`
+	Members          []string            `json:"members"`
+	OpenFiles        map[string]*os.File `json:"-"`
+	OpenFilesForUser map[string][]string `json:"-"`
+	filesFlag        *uint32             `json:"-"`
+}
+
+func NewSquadFSInstance(id, owner string, members []string) (squadFSInstance *SquadFSInstance) {
+
+	filesFlag := uint32(0)
+	squadFSInstance = &SquadFSInstance{
+		SquadID:          id,
+		Owner:            owner,
+		Members:          members,
+		OpenFiles:        make(map[string]*os.File),
+		OpenFilesForUser: make(map[string][]string),
+		filesFlag:        &filesFlag,
+	}
+	return
+}
+
+func (fs *SquadFSInstance) SetupFileUpload(chatId, filename, userId string, dc *webrtc.DataChannel) (writePipe chan []byte, err error) {
+	concretePath := filepath.Join(dataPath, "data", "squads", fs.SquadID, "chat", "__files__", filename)
+	if _, err = os.ReadDir(filepath.Join(dataPath, "data", "squads", fs.SquadID, "chat")); err != nil {
+		return
+	}
+	if _, rErr := os.ReadDir(filepath.Join(dataPath, "data", "squads", fs.SquadID, "chat", "__files__")); os.IsNotExist(rErr) {
+		if err = os.MkdirAll(filepath.Join(dataPath, "data", "squads", fs.SquadID, "chat", "__files__"), 0700); err != nil {
+			return
+		}
+	} else if rErr != nil {
+		return nil, rErr
+	}
+	if err = os.Remove(concretePath); err != nil {
+		logger.Println(err)
+	}
+	file, err := os.OpenFile(concretePath, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0755)
+	if err != nil {
+		return
+	}
+	writePipe = make(chan []byte)
+	go func(f *os.File) {
+		defer func() {
+			_ = f.Close()
+		}()
+		for chunk := range writePipe {
+			if _, err = file.Write(chunk); err != nil {
+				return
+			}
+		}
+	}(file)
+	return
+}
+
+func (fs *SquadFSInstance) FileUploadFailed(chatId, filename, userId string) (err error) {
+	concretePath := filepath.Join(dataPath, "data", "squads", fs.SquadID, "chat", "__files__", filename)
+	err = os.Remove(concretePath)
+	return
+}
+
+func (fs *SquadFSInstance) SetupFileDownload(chatId, filename, userId string, dc *webrtc.DataChannel) (err error) {
+	concretePath := filepath.Join(dataPath, "data", "squads", fs.SquadID, "chat", "__files__", filename)
+	file, err := os.OpenFile(concretePath, os.O_RDONLY, 0755)
+	if err != nil {
+		return
+	}
+	if dc != nil {
+		dc.SetBufferedAmountLowThreshold(12000000)
+		bufferedAmountLock := make(chan struct{})
+		go func(f *os.File) {
+			defer func() {
+				close(bufferedAmountLock)
+				bufferedAmountLock = nil
+				_ = f.Close()
+			}()
+			r := bufio.NewReader(file)
+			buf := make([]byte, 0, 50000)
+		sendingLoop:
+			for {
+				n, readErr := r.Read(buf[:cap(buf)])
+				buf = buf[:n]
+				if n == 0 {
+					if err == nil {
+						logger.Println("n is 0 weird")
+						break sendingLoop
+					}
+					if err == io.EOF {
+						break sendingLoop
+					}
+					logger.Println(readErr)
+					return
+				}
+				if err = dc.Send(buf); err != nil {
+					dc.Close()
+					logger.Println(err)
+					break sendingLoop
+				}
+				if dc.BufferedAmount() > dc.
+					BufferedAmountLowThreshold() {
+					<-bufferedAmountLock
+				}
+			}
+			logger.Println("done")
+			if err = dc.SendText("download_done"); err != nil {
+				logger.Println(err)
+			}
+		}(file)
+		dc.OnBufferedAmountLow(func() {
+			if bufferedAmountLock != nil {
+				bufferedAmountLock <- struct{}{}
+			}
+		})
+	} else {
+		err = fmt.Errorf("datachannel not created")
+		_ = atomicallyExecute(fs.filesFlag, func() (err error) {
+			if file, ok := fs.OpenFiles[fmt.Sprintf("%s/%s", filename, userId)]; ok {
+				file.Close()
+			}
+			delete(fs.OpenFiles, fmt.Sprintf("%s/%s", filename, userId))
+			return
+		})
+	}
+	return
+}
+
+func (fs *SquadFSInstance) FileDownloadFailed(chatId, filename, userId string) (err error) {
+	err = atomicallyExecute(fs.filesFlag, func() (err error) {
+		if file, ok := fs.OpenFiles[fmt.Sprintf("%s/%s", filename, userId)]; ok {
+			file.Close()
+		}
+		delete(fs.OpenFiles, fmt.Sprintf("%s/%s", filename, userId))
+		if _, ok := fs.OpenFilesForUser[userId]; ok {
+			var index int
+			for i, v := range fs.OpenFilesForUser[userId] {
+				if v == fmt.Sprintf("%s/%s", filename, userId) {
+					index = i
+					break
+				}
+			}
+			if len(fs.OpenFilesForUser[userId]) > 1 {
+				fs.OpenFilesForUser[userId] = append(fs.OpenFilesForUser[userId][:index], fs.OpenFilesForUser[userId][:index+1]...)
+			} else {
+				delete(fs.OpenFilesForUser, userId)
+			}
+		}
+		return
+	})
+	return
+}
+
+func (fs *SquadFSInstance) HandleDataChannelEvents(from, eventId string, payload map[string]interface{}) (err error) {
+	switch eventId {
+	}
+	return
+}

squadChatHandler.go

@@ -0,0 +1,750 @@
+package localserver
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/dgraph-io/badger/v3"
+	"github.com/pion/webrtc/v3"
+)
+
+type SquadChatConfig struct {
+	ChatId   string   `json:"chatId"`
+	ChatType string   `json:"chatType"`
+	Owner    string   `json:"owner"`
+	Members  []string `json:"members"`
+}
+
+type SquadChat struct {
+	ChatId        string               `json:"chatId"`
+	ChatType      string               `json:"chatType"`
+	Owner         string               `json:"owner"`
+	Members       []string             `json:"members"`
+	LastReadIndex uint                 `json:"lastReadIndex"`
+	Unread        uint                 `json:"unread"`
+	DB            *SquadChatDBHandler  `json:"-"`
+	Tracking      *SquadChatTrackingDB `json:"-"`
+}
+
+type SquadChatsHandler[T ZippytalFSInstance] struct {
+	SquadName            string
+	SquadId              string
+	HostId               string
+	ChatFSInstance       T
+	SquadMembersId       []string
+	DataChannels         map[string]*DataChannel
+	ChatDataChannels     map[string]*DataChannel
+	ChatDataChannelsFlag *uint32
+	Flag                 *uint32
+	ChatFSInstanceFlag   *uint32
+	ChatFlag             *uint32
+	Chat                 *SquadChat
+	reqChans             []chan<- *SquadRequest
+	init                 bool
+}
+
+func NewSquadChatsHandler(hostId, squadId, squadName, owner string, authorizedMembers []string, dataChannels map[string]*DataChannel, flag *uint32) (squadChatsHandler *SquadChatsHandler[*SquadFSInstance], err error) {
+	_, err = os.ReadDir(filepath.Join(dataPath, "data", "squads", squadId, "chat"))
+	if err != nil {
+		if os.IsNotExist(err) {
+			logger.Printf("creating chat directory for squad %s...\n", squadId)
+			mkdirErr := os.MkdirAll(filepath.Join(dataPath, "data", "squads", squadId, "chat"), 0700)
+			if mkdirErr != nil {
+				return nil, mkdirErr
+			}
+			file, ferr := os.Create(filepath.Join(dataPath, "data", "squads", squadId, "chat", "chatConfig.json"))
+			if ferr != nil {
+				return nil, ferr
+			}
+			baseConfig := ChatConfig{
+				ChatId:   squadName,
+				Owner:    owner,
+				ChatType: "public",
+				Members:  authorizedMembers,
+			}
+			bs, jsonErr := json.Marshal(baseConfig)
+			if jsonErr != nil {
+				return nil, jsonErr
+			}
+			if _, writeErr := file.WriteString(string(bs)); writeErr != nil {
+				return nil, writeErr
+			}
+			_ = file.Close()
+			_, err = os.ReadDir(filepath.Join(dataPath, "data", "squads", squadId, "chat"))
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			return
+		}
+	}
+	squadChatDBHandler, err := NewSquadChatDBHandler(squadId)
+	if err != nil {
+		return nil, err
+	}
+	var bs []byte
+	bs, err = os.ReadFile(filepath.Join(dataPath, "data", "squads", squadId, "chat", "chatConfig.json"))
+	if err != nil {
+		return nil, err
+	}
+	logger.Println(string(bs))
+	var c SquadChat
+	if err = json.Unmarshal(bs, &c); err != nil {
+		return nil, err
+	}
+	squadChatTracking, err := NewSquadChatTracking(squadId, c.ChatId, c.Members...)
+	if err != nil {
+		return nil, err
+	}
+	logger.Println("chats data :", c.ChatId, c.ChatType, c.Owner, c.Members)
+	c.DB = squadChatDBHandler
+	c.Tracking = squadChatTracking
+
+	chatFlag := uint32(0)
+	chatFSFlag := uint32(0)
+	chatDCFlag := uint32(0)
+	squadChatsHandler = &SquadChatsHandler[*SquadFSInstance]{
+		HostId:               hostId,
+		SquadName:            squadName,
+		ChatFSInstance:       NewSquadFSInstance(squadId, owner, authorizedMembers),
+		ChatFSInstanceFlag:   &chatFSFlag,
+		SquadId:              squadId,
+		SquadMembersId:       authorizedMembers,
+		DataChannels:         dataChannels,
+		ChatDataChannels:     make(map[string]*DataChannel),
+		ChatDataChannelsFlag: &chatDCFlag,
+		Flag:                 flag,
+		Chat:                 &c,
+		ChatFlag:             &chatFlag,
+		init:                 false,
+	}
+	return
+}
+
+func (sch *SquadChatsHandler[T]) sendSquadRequest(reqType string, from string, payload map[string]interface{}) {
+	go func() {
+		for _, rc := range sch.reqChans {
+			rc <- &SquadRequest{
+				ReqType: reqType,
+				From:    from,
+				Payload: payload,
+			}
+		}
+	}()
+}
+
+func (sch *SquadChatsHandler[T]) sendDataChannelMessage(reqType string, from string, to string, payload map[string]interface{}) (<-chan struct{}, <-chan error) {
+	done, errCh := make(chan struct{}), make(chan error)
+	go func() {
+		if err := atomicallyExecute(sch.ChatDataChannelsFlag, func() (err error) {
+			if _, ok := sch.ChatDataChannels[to]; ok {
+				bs, jsonErr := json.Marshal(&SquadResponse{
+					Type:    reqType,
+					From:    from,
+					To:      to,
+					Payload: payload,
+				})
+				if jsonErr != nil {
+					return jsonErr
+				}
+				err = sch.ChatDataChannels[to].DataChannel.SendText(string(bs))
+			} else {
+				err = fmt.Errorf("no corresponding dataChannel")
+			}
+			return
+		}); err != nil {
+			errCh <- err
+			return
+		}
+		done <- struct{}{}
+	}()
+	return done, errCh
+}
+
+func (sch *SquadChatsHandler[T]) Init(ctx context.Context, authorizedMembers []string) (err error) {
+	sch.init = true
+	return
+}
+
+func (sch *SquadChatsHandler[T]) Subscribe(ctx context.Context, publisher <-chan *SquadRequest) (reqChan chan *SquadRequest, done chan struct{}, errCh chan error) {
+	reqChan, done, errCh = make(chan *SquadRequest), make(chan struct{}), make(chan error)
+	sch.reqChans = append(sch.reqChans, reqChan)
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				done <- struct{}{}
+				return
+			case req := <-publisher:
+				if err := sch.handleSquadRequest(ctx, req); err != nil {
+					errCh <- err
+				}
+			}
+		}
+	}()
+	return
+}
+
+func (sch *SquadChatsHandler[T]) ReadLastMessage(userId, chatId string) (err error) {
+	err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+
+		err = sch.Chat.Tracking.SetUserLastIndex(userId, sch.Chat.DB.PreviousId)
+
+		return
+	})
+	return
+}
+
+func (sch *SquadChatsHandler[T]) ListLatestChatMessages(userId, chatId string, lastIndex, limit float64) (err error) {
+	var list []*ChatMessage
+	var i int
+	var done bool
+	if err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+		list, i, done, err = sch.Chat.DB.ListChatMessages(int(lastIndex), int(limit))
+		if err != nil {
+			return
+		}
+		err = sch.Chat.Tracking.SetUserLastIndex(userId, sch.Chat.DB.PreviousId)
+
+		return
+	}); err != nil {
+		return
+	}
+	success, e := sch.sendDataChannelMessage(CHAT_MESSAGE_LIST, "node", userId, map[string]interface{}{
+		"done":         done || i <= 0,
+		"lastIndex":    i - 1,
+		"chatId":       chatId,
+		"chatMessages": list,
+	})
+	select {
+	case <-success:
+		fmt.Println("done getting latest messages")
+	case err = <-e:
+	}
+	return
+}
+
+func (sch *SquadChatsHandler[T]) ListLatestChatFiles(userId, chatId string, lastIndex, limit float64) (err error) {
+	var list []*ChatFile
+	var i int
+	if err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+
+		list, i, err = sch.Chat.DB.ListChatFiles(int(lastIndex), int(limit))
+		return
+	}); err != nil {
+		return
+	}
+	done, e := sch.sendDataChannelMessage(CHAT_FILES_LIST, "node", userId, map[string]interface{}{
+		"done":         i <= 0,
+		"lastIndex":    i,
+		"chatId":       chatId,
+		"chatMessages": list,
+	})
+	select {
+	case <-done:
+	case err = <-e:
+	}
+	return
+}
+
+func (sch *SquadChatsHandler[T]) AddChatMessage(userId, chatId, content string, isResponse bool, chatResponseId uint64, file *ChatFile) (err error) {
+	chatMessage := &ChatMessage{
+		Content:    content,
+		From:       userId,
+		IsResponse: isResponse,
+		ResponseOf: nil,
+		File:       file,
+		Tags:       make([]string, 0),
+		Date:       time.Now().Format(time.RFC3339),
+	}
+	if err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+		if isResponse {
+			parentMessage, getErr := sch.Chat.DB.GetChatMessage(chatResponseId)
+			if err != nil {
+				if getErr != badger.ErrKeyNotFound {
+					return getErr
+				}
+			}
+			chatMessage.ResponseOf = parentMessage
+		}
+		if err = sch.Chat.DB.AddNewChatMessage(chatMessage); err != nil {
+			return
+		}
+		chatMessage.ID = sch.Chat.DB.PreviousId
+		return
+	}); err != nil {
+		return
+	}
+
+	notifyActivity := func(done <-chan struct{}, e <-chan error, member string) {
+		select {
+		case <-done:
+		case <-e:
+			chat := sch.Chat
+			_ = atomicallyExecute(sch.ChatFlag, func() (err error) {
+
+				li, err := chat.Tracking.GetUserLastIndex(member)
+				if err != nil {
+					return err
+				}
+				count, err := chat.DB.calculateNewChatCount(uint64(li))
+				if err != nil {
+					return err
+				}
+				if count == 1 {
+					bs, err := json.Marshal(map[string]any{
+						"squadId":   sch.SquadId,
+						"chatId":    chatId,
+						"squadHost": NodeID,
+					})
+					if err != nil {
+						return err
+					}
+					sch.sendSquadRequest(CREATE_NOTIFICATION, "node", map[string]interface{}{
+						"type":       "new_chat_activity",
+						"title":      "Unread messages 👀",
+						"body":       fmt.Sprintf("New messages in %s", sch.SquadName),
+						"isPushed":   true,
+						"payload":    string(bs),
+						"recipients": []string{member},
+					})
+				}
+
+				return
+			})
+		}
+	}
+
+	for _, v := range sch.SquadMembersId {
+		done, e := sch.sendDataChannelMessage(NEW_CHAT_MESSAGE, "node", v, map[string]interface{}{
+			"chatMessage": chatMessage,
+			"chatId":      chatId,
+		})
+		go notifyActivity(done, e, v)
+	}
+	return
+}
+
+// func (sch *SquadChatsHandler[T]) ConnectToChatFSInstance(channelId string, userId string, sdp string) (err error) {
+// 	err = atomicallyExecute(sch.ChatFSInstanceFlag, func() (err error) {
+// 		d, e := sch.ChatFSInstance.HandleOffer(context.Background(), channelId, userId, sdp, sch.HostId, sch.sendDataChannelMessage, sch.signalCandidate)
+// 		select {
+// 		case <-d:
+// 		case <-e:
+// 		}
+// 		return
+// 	})
+// 	return
+// }
+
+// func (sch *SquadChatsHandler[T]) LeaveChatFSInstance(
+// 	userId string) (err error) {
+// 	sch.ChatFSInstance.HandleLeavingMember(userId)
+// 	return
+// }
+
+func (sch *SquadChatsHandler[T]) DeleteChatMessage(key uint64, chatId string) (err error) {
+	err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+		chat := sch.Chat
+		if err = chat.DB.DeleteChatMessage(key); err != nil {
+			return
+		}
+		if chat.ChatType == PRIVATE {
+			for _, member := range chat.Members {
+				d, e := sch.sendDataChannelMessage(CHAT_MESSAGE_DELETED, "node", member, map[string]interface{}{
+					"chatId":    chatId,
+					"messageId": key,
+				})
+				select {
+				case <-d:
+				case tempErr := <-e:
+					logger.Println(tempErr)
+				}
+			}
+		} else {
+			for _, member := range sch.SquadMembersId {
+				d, e := sch.sendDataChannelMessage(CHAT_MESSAGE_DELETED, "node", member, map[string]interface{}{
+					"chatId":    chatId,
+					"messageId": key,
+				})
+				select {
+				case <-d:
+				case tempErr := <-e:
+					logger.Println(tempErr)
+				}
+			}
+		}
+		previousId := chat.DB.PreviousId
+		if previousId == key {
+			if err = chat.DB.revertPreviousId(); err != nil {
+				return
+			}
+			previousId = chat.DB.PreviousId
+			if previousId == 1 {
+				previousId = 0
+			}
+			if err = chat.Tracking.RevertTrackingLastIndex(previousId); err != nil {
+				return
+			}
+		}
+		return
+	})
+	return
+}
+
+func (sch *SquadChatsHandler[T]) UpdateChatMessage(key uint64, chatId, newContent string) (err error) {
+	err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+		chat := sch.Chat
+		if err = chat.DB.ModifyChatMessage(key, newContent); err != nil {
+			return
+		}
+		if chat.ChatType == PRIVATE {
+			for _, member := range chat.Members {
+				d, e := sch.sendDataChannelMessage(CHAT_MESSAGE_EDITED, "node", member, map[string]interface{}{
+					"chatId":     chatId,
+					"messageId":  key,
+					"newContent": newContent,
+				})
+				select {
+				case <-d:
+				case tempErr := <-e:
+					logger.Println(tempErr)
+				}
+			}
+		} else {
+			for _, member := range sch.SquadMembersId {
+				d, e := sch.sendDataChannelMessage(CHAT_MESSAGE_EDITED, "node", member, map[string]interface{}{
+					"chatId":     chatId,
+					"messageId":  key,
+					"newContent": newContent,
+				})
+				select {
+				case <-d:
+				case tempErr := <-e:
+					logger.Println(tempErr)
+				}
+			}
+		}
+		return
+	})
+	return
+}
+
+func (sch *SquadChatsHandler[T]) DeleteChatFile(key uint64, fileName, chatId string) (err error) {
+	err = atomicallyExecute(sch.ChatFlag, func() (err error) {
+		chat := sch.Chat
+		if err = chat.DB.DeleteChatFile(fileName, key); err != nil {
+			return
+		}
+		if chat.ChatType == PRIVATE {
+			for _, member := range chat.Members {
+				d, e := sch.sendDataChannelMessage(CHAT_FILE_DELETED, "node", member, map[string]interface{}{
+					"chatId":   chatId,
+					"fileId":   key,
+					"fileName": fileName,
+				})
+				select {
+				case <-d:
+				case tempErr := <-e:
+					logger.Println(tempErr)
+				}
+			}
+		} else {
+			for _, member := range sch.SquadMembersId {
+				d, e := sch.sendDataChannelMessage(CHAT_FILE_DELETED, "node", member, map[string]interface{}{
+					"chatId":   chatId,
+					"fileId":   key,
+					"fileName": fileName,
+				})
+				select {
+				case <-d:
+				case tempErr := <-e:
+					logger.Println(tempErr)
+				}
+			}
+		}
+		return
+	})
+	return
+}
+
+func (sch *SquadChatsHandler[T]) chatFileUpload(chatId string, filename string, userId string, dc *DataChannel) {
+	var writePipe chan<- []byte
+	var done bool
+	uploadDone := func() {
+		if writePipe != nil {
+			close(writePipe)
+			writePipe = nil
+		}
+		done = true
+	}
+	dc.DataChannel.OnError(func(err error) {
+		logger.Println(err)
+		logger.Println("abort...")
+		if !done {
+			uploadDone()
+		}
+		if fufErr := sch.ChatFSInstance.FileUploadFailed(chatId, filename, userId); fufErr != nil {
+			logger.Println(fufErr)
+		}
+	})
+	dc.DataChannel.OnClose(func() {
+		if done {
+			logger.Println("closing gracefully...")
+		} else {
+			logger.Println("abort...")
+			uploadDone()
+			if fufErr := sch.ChatFSInstance.FileUploadFailed(chatId, filename, userId); fufErr != nil {
+				logger.Println(fufErr)
+			}
+		}
+	})
+	dc.DataChannel.OnMessage(func(msg webrtc.DataChannelMessage) {
+		if msg.IsString {
+			if string(msg.Data) == "init_upload" {
+				logger.Println("init upload....")
+				var initErr error
+				if writePipe, initErr = sch.ChatFSInstance.SetupFileUpload(chatId, filename, userId, dc.DataChannel); initErr != nil {
+					_ = dc.DataChannel.SendText("abort")
+					_ = dc.DataChannel.Close()
+					return
+				}
+				logger.Println("upload ready !")
+				_ = dc.DataChannel.SendText("upload_ready")
+			} else if string(msg.Data) == "upload_done" {
+				uploadDone()
+			}
+		} else {
+			writePipe <- msg.Data
+		}
+	})
+	dc.DataChannel.OnOpen(func() {
+		_ = dc.DataChannel.SendText("channel_ready")
+	})
+}
+
+func (sch *SquadChatsHandler[T]) chatFileDownload(chatId string, filename string, userId string, dc *DataChannel) {
+	var done bool
+	dc.DataChannel.OnError(func(err error) {
+		if !done {
+			logger.Println("abort...")
+			if fdf := sch.ChatFSInstance.FileDownloadFailed(chatId, filename, userId); fdf != nil {
+				logger.Println(fdf)
+			}
+		}
+	})
+	dc.DataChannel.OnClose(func() {
+		if !done {
+			logger.Println("abort...")
+			if fdf := sch.ChatFSInstance.FileDownloadFailed(chatId, filename, userId); fdf != nil {
+				logger.Println(fdf)
+			}
+		}
+	})
+	dc.DataChannel.OnMessage(func(msg webrtc.DataChannelMessage) {
+		if msg.IsString {
+			if string(msg.Data) == "init_download" {
+				logger.Println("init download....")
+				var initErr error
+				if initErr = sch.ChatFSInstance.SetupFileDownload(chatId, filename, userId, dc.DataChannel); initErr != nil {
+					fmt.Println("uwuwuwuwuwuwuwuwu")
+					fmt.Println(initErr)
+					_ = dc.DataChannel.SendText("abort")
+					_ = dc.DataChannel.Close()
+					return
+				}
+				logger.Println("download started !")
+			} else if string(msg.Data) == "download_done" {
+				done = true
+			}
+		}
+	})
+	dc.DataChannel.OnOpen(func() {
+		_ = dc.DataChannel.SendText("channel_ready")
+	})
+}
+
+func (sch *SquadChatsHandler[T]) handleDataChannel(ctx context.Context, dc *DataChannel) (catched bool) {
+	var label string
+	_ = atomicallyExecute(dc.l, func() (err error) {
+		label = dc.DataChannel.Label()
+		return
+	})
+	if strings.Contains(label, "chat_upload") {
+		command := strings.Split(label, "|")
+		if len(command) == 4 {
+			catched = true
+			go sch.chatFileUpload(command[1], command[2], command[3], dc)
+		}
+		logger.Println(command)
+	} else if strings.Contains(label, "chat_download") {
+		command := strings.Split(label, "|")
+		catched = true
+		go sch.chatFileDownload(command[1], command[2], command[3], dc)
+		logger.Println(command)
+	} else if strings.Contains(label, "chat_data") {
+		command := strings.Split(label, "|")
+		catched = true
+		_ = atomicallyExecute(sch.ChatDataChannelsFlag, func() (err error) {
+			sch.ChatDataChannels[command[1]] = dc
+			return
+		})
+		dc.DataChannel.OnOpen(func() {
+			fmt.Println("datachann in squad chat fking created")
+			bs, err := json.Marshal(map[string]any{
+				"type": "chat_init",
+				"from": NodeID,
+				"to":   command[1],
+				"payload": map[string]any{
+					"chatId": sch.SquadId,
+				},
+			})
+			if err != nil {
+				fmt.Println(err)
+			}
+			_ = dc.DataChannel.SendText(string(bs))
+		})
+		dc.DataChannel.OnClose(func() {
+			fmt.Println("closing gratefully chat dc...")
+			_ = atomicallyExecute(sch.ChatDataChannelsFlag, func() (err error) {
+				delete(sch.ChatDataChannels, command[1])
+				return
+			})
+		})
+		dc.DataChannel.OnError(func(err error) {
+			fmt.Println("error in chat dc...")
+			_ = atomicallyExecute(sch.ChatDataChannelsFlag, func() (err error) {
+				delete(sch.ChatDataChannels, command[1])
+				return
+			})
+		})
+	}
+	return
+}
+
+func (sch *SquadChatsHandler[T]) handleSquadRequest(ctx context.Context, req *SquadRequest) (err error) {
+	logger.Println("got request in squad chat handler", req)
+	switch req.ReqType {
+	case LEAVE_ZONE:
+		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
+			return
+		}
+		// err = sch.LeaveChatFSInstance(req.Payload["userId"].(string))
+	case string(NEW_AUTHORIZED_SQUAD_MEMBER):
+		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
+			return
+		}
+		var contain bool
+		for _, m := range sch.SquadMembersId {
+			if m == req.Payload["userId"].(string) {
+				contain = true
+				break
+			}
+		}
+		if !contain {
+			sch.SquadMembersId = append(sch.SquadMembersId, req.Payload["userId"].(string))
+		}
+		return
+	case string(REMOVED_SQUAD_AUTHORIZED_MEMBER):
+		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
+			return
+		}
+		var index int
+		var found bool
+		for i, m := range sch.SquadMembersId {
+			if m == req.Payload["userId"].(string) {
+				index = i
+				found = true
+				break
+			}
+		}
+		if !found {
+			err = fmt.Errorf("no such user in zone")
+			return
+		}
+		sch.SquadMembersId = append(sch.SquadMembersId[:index], sch.SquadMembersId[index+1:]...)
+		return
+	case LIST_LATEST_CHATS:
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
+			return
+		}
+		if err = VerifyFieldsFloat64(req.Payload, "lastIndex", "limit"); err != nil {
+			return
+		}
+		err = sch.ListLatestChatMessages(req.From, req.Payload["chatId"].(string), req.Payload["lastIndex"].(float64), req.Payload["limit"].(float64))
+		return
+	case LIST_LATEST_FILES:
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
+			return
+		}
+		if err = VerifyFieldsFloat64(req.Payload, "lastIndex", "limit"); err != nil {
+			return
+		}
+		err = sch.ListLatestChatFiles(req.From, req.Payload["chatId"].(string), req.Payload["lastIndex"].(float64), req.Payload["limit"].(float64))
+		return
+	case READ_LATEST_MESSAGE:
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
+			return
+		}
+		err = sch.ReadLastMessage(req.From, req.Payload["chatId"].(string))
+	case ADD_CHAT_MESSAGE:
+		logger.Println("got request in squad chat handler", req)
+		if err = VerifyFieldsString(req.Payload, "chatId", "content"); err != nil {
+			return
+		}
+		if err = VerifyFieldsBool(req.Payload, "isResponse"); err != nil {
+			return
+		}
+		var parentChatId uint64
+		if req.Payload["isResponse"].(bool) {
+			if err = VerifyFieldsFloat64(req.Payload, "parentChatId"); err != nil {
+				return
+			}
+			parentChatId = uint64(req.Payload["parentChatId"].(float64))
+		}
+		var file *ChatFile = nil
+		if _, ok := req.Payload["file"]; ok {
+			bs, jsonErr := json.Marshal(req.Payload["file"])
+			if jsonErr != nil {
+				return jsonErr
+			}
+			var f ChatFile
+			if err = json.Unmarshal(bs, &f); err != nil {
+				err = fmt.Errorf("the file payload dont match ChatFile struct pattern : %v", err)
+				return
+			}
+			file = &f
+		}
+		err = sch.AddChatMessage(req.From, req.Payload["chatId"].(string), req.Payload["content"].(string), req.Payload["isResponse"].(bool), parentChatId, file)
+	case DELETE_CHAT_MESSAGE:
+		if err = VerifyFieldsString(req.Payload, "chatId"); err != nil {
+			return
+		}
+		if err = VerifyFieldsFloat64(req.Payload, "messageId"); err != nil {
+			return
+		}
+		err = sch.DeleteChatMessage(uint64(req.Payload["messageId"].(float64)), req.Payload["chatId"].(string))
+	case EDIT_CHAT_MESSAGE:
+		if err = VerifyFieldsString(req.Payload, "chatId", "newContent"); err != nil {
+			return
+		}
+		if err = VerifyFieldsFloat64(req.Payload, "messageId"); err != nil {
+			return
+		}
+		err = sch.UpdateChatMessage(uint64(req.Payload["messageId"].(float64)), req.Payload["chatId"].(string), req.Payload["newContent"].(string))
+	case DELETE_CHAT_FILE:
+		if err = VerifyFieldsString(req.Payload, "chatId", "fileName"); err != nil {
+			return
+		}
+		if err = VerifyFieldsFloat64(req.Payload, "fileId"); err != nil {
+			return
+		}
+		err = sch.DeleteChatFile(uint64(req.Payload["fileId"].(float64)), req.Payload["fileName"].(string), req.Payload["chatId"].(string))
+	}
+	return
+}

squadChatTracking.go

@@ -0,0 +1,151 @@
+package localserver
+
+import (
+	"encoding/binary"
+	"os"
+	"path/filepath"
+	"sync"
+
+	"github.com/dgraph-io/badger/v3"
+)
+
+type SquadChatTrackingDB struct {
+	SquadID string
+	db      func(cb func(*badger.DB) (err error)) (err error)
+	lock    *sync.RWMutex
+}
+
+func NewSquadChatTracking(squadId, chatId string, members ...string) (*SquadChatTrackingDB, error) {
+	if _, dirErr := os.ReadDir(filepath.Join(dataPath, "data", "squads", squadId, "chat", "__tracking__")); os.IsNotExist(dirErr) {
+		_ = os.MkdirAll(filepath.Join(dataPath, "data", "squads", squadId, "chat", "__tracking__"), 0700)
+	}
+	db := func(f func(*badger.DB) (err error)) (err error) {
+		db, err := badger.Open(badger.DefaultOptions(filepath.Join(dataPath, "data", "squads", squadId, "chat", "__tracking__")).WithLogger(dbLogger))
+		if err != nil {
+			return
+		}
+		defer db.Close()
+		err = f(db)
+		return
+	}
+	lock := new(sync.RWMutex)
+	if err := db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) error {
+			b := make([]byte, bufferSize)
+			binary.BigEndian.PutUint64(b, 0)
+			for _, member := range members {
+				if _, rerr := txn.Get([]byte(member)); rerr == badger.ErrKeyNotFound {
+					_ = txn.Set([]byte(member), b)
+				} else if rerr != nil {
+					return rerr
+				}
+			}
+			return nil
+		})
+		if err != nil {
+			return
+		}
+		return
+	}); err != nil {
+		return nil, err
+	}
+	return &SquadChatTrackingDB{squadId, db, lock}, nil
+}
+
+func (zctdb *SquadChatTrackingDB) Initialize(lastIndex uint64, users ...string) (err error) {
+	for _, user := range users {
+		if err = zctdb.SetUserLastIndex(user, lastIndex); err != nil {
+			return
+		}
+	}
+	return
+}
+
+func (zctdb *SquadChatTrackingDB) RevertTrackingLastIndex(lastIndex uint64) (err error) {
+	zctdb.lock.Lock()
+	defer zctdb.lock.Unlock()
+	err = zctdb.db(func(d *badger.DB) (err error) {
+		keys := [][]byte{}
+		err = d.View(func(txn *badger.Txn) error {
+			opt := badger.DefaultIteratorOptions
+			it := txn.NewIterator(opt)
+			defer it.Close()
+			for it.Rewind(); it.Valid(); it.Next() {
+				item := it.Item()
+				if err = item.Value(func(val []byte) error {
+					li := binary.BigEndian.Uint64(val)
+					if li >= lastIndex {
+						keys = append(keys, item.Key())
+					}
+					return nil
+				}); err != nil {
+					return err
+				}
+			}
+			return nil
+		})
+		if err != nil {
+			return
+		}
+		err = d.Update(func(txn *badger.Txn) error {
+			for _, key := range keys {
+				b := make([]byte, bufferSize)
+				binary.BigEndian.PutUint64(b, lastIndex)
+				if updateErr := txn.Set(key, b); updateErr != nil {
+					return updateErr
+				}
+			}
+			return nil
+		})
+		return
+	})
+	return
+}
+
+func (zctdb *SquadChatTrackingDB) SetUserLastIndex(userId string, lastIndex uint64) (err error) {
+	zctdb.lock.Lock()
+	defer zctdb.lock.Unlock()
+	err = zctdb.db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) error {
+			b := make([]byte, bufferSize)
+			binary.BigEndian.PutUint64(b, lastIndex)
+			updateErr := txn.Set([]byte(userId), b)
+			return updateErr
+		})
+		return
+	})
+	return
+}
+
+func (zctdb *SquadChatTrackingDB) GetUserLastIndex(userId string) (index uint, err error) {
+	zctdb.lock.Lock()
+	defer zctdb.lock.Unlock()
+	err = zctdb.db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) error {
+			item, rerr := txn.Get([]byte(userId))
+			if rerr != nil {
+				return rerr
+			}
+			_ = item.Value(func(val []byte) error {
+				index = uint(binary.BigEndian.Uint64(val))
+				return nil
+			})
+			return nil
+		})
+		return
+	})
+	return
+}
+
+func (zctdb *SquadChatTrackingDB) DeleteUserTracking(userId string) (err error) {
+	zctdb.lock.Lock()
+	defer zctdb.lock.Unlock()
+	err = zctdb.db(func(d *badger.DB) (err error) {
+		err = d.Update(func(txn *badger.Txn) error {
+			updateErr := txn.Delete([]byte(userId))
+			return updateErr
+		})
+		return
+	})
+	return
+}

squadGrpcMiddleware.go

@@ -0,0 +1,238 @@
+package localserver
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strconv"
+
+	"github.com/pion/webrtc/v3"
+)
+
+const (
+	HOSTED_SQUAD_OFFER                        ReqType = "hosted_squad_offer"
+	HOSTED_SQUAD_ANSWER                       ReqType = "hosted_squad_answer"
+	HOSTED_SQUAD_COUNTER_OFFER                ReqType = "hosted_squad_counter_offer"
+	JOIN_SQUAD                                ReqType = "join_hosted_squad"
+	HOSTED_SQUAD_ACCESS_DENIED                ReqType = "hosted_squad_hosted_squad_access_denied"
+	QUIT_SQUAD                                ReqType = "hosted_squad_stop_call"
+	HOSTED_SQUAD_ACCESS_GRANTED               ReqType = "hosted_squad_access_granted"
+	INCOMING_HOSTED_SQUAD_MEMBER              ReqType = "incoming_hosted_squad_member"
+	LEAVING_HOSTED_SQUAD_MEMBER               ReqType = "leaving_hosted_squad_member"
+	HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_OFFER  ReqType = "hosted_squad_rennegotiation_offer"
+	HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER ReqType = "hosted_squad_rennegotiation_answer"
+	HOSTED_SQUAD_WEBRTC_CANDIDATE             ReqType = "hosted_squad_webrtc_candidate"
+	NEW_SQUAD                                 ReqType = "new_hosted_squad"
+	NEW_AUTHORIZED_SQUAD_MEMBER                       = "new_authorized_squad_member"
+	REMOVED_SQUAD_AUTHORIZED_MEMBER                   = "removed_squad_authorized_member"
+	DELETE_SQUAD                                      = "delete_hosted_squad"
+	DISCONNECT_SQUAD_MEMBER                           = "disconnect_squad_member"
+)
+
+type SquadGrpcMiddleware struct {
+	Manager *SquadManager
+	stream  SignalingService_LinkClient
+}
+
+func NewSquadGrpcMiddleware(manager *SquadManager) (squadGrpcMiddleware *SquadGrpcMiddleware) {
+	squadGrpcMiddleware = &SquadGrpcMiddleware{
+		Manager: manager,
+	}
+	return
+}
+
+func (zm *SquadGrpcMiddleware) signalCandidate(to string, candidate *webrtc.ICECandidate) (err error) {
+	bs, err := json.Marshal(map[string]string{
+		"from":          zm.Manager.ID,
+		"to":            to,
+		"candidate":     candidate.ToJSON().Candidate,
+		"sdpMid":        *candidate.ToJSON().SDPMid,
+		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+	})
+	if err != nil {
+		return
+	}
+	err = zm.stream.Send(&SignalingMessage{
+		Type:    string(HOSTED_SQUAD_WEBRTC_CANDIDATE),
+		From:    zm.Manager.ID,
+		To:      to,
+		Payload: bs,
+	})
+	return
+}
+
+func (zm *SquadGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage, stream SignalingService_LinkClient) (err error) {
+	done, errCh := make(chan struct{}), make(chan error)
+	go func() {
+		defer func() {
+			done <- struct{}{}
+		}()
+		var payload map[string]string
+		if e := json.Unmarshal(req.Payload, &payload); e != nil {
+			errCh <- e
+			return
+		}
+		switch req.Type {
+		case string(INCOMING_HOSTED_SQUAD_MEMBER):
+		case string(DELETE_SQUAD):
+			if err := validateRequest(payload, "squadId"); err != nil {
+				return
+			}
+			if err := zm.Manager.DeleteSquad(payload["squadId"]); err != nil {
+				errCh <- err
+				return
+			}
+		case string(LEAVING_HOSTED_SQUAD_MEMBER):
+			if err := validateRequest(payload, "squadId"); err != nil {
+				return
+			}
+			if err := zm.Manager.HandleLeavingMember(req.GetFrom(), payload["squadId"], false); err != nil {
+				errCh <- err
+				return
+			}
+		case string(REMOVED_SQUAD_AUTHORIZED_MEMBER):
+			fmt.Println("got there biatch")
+			if err := validateRequest(payload, "squadId", "userId"); err != nil {
+				return
+			}
+
+			reqChan := make(chan *SquadRequest)
+			d, e := zm.Manager.Squads[payload["squadId"]].SquadRequestScheduler.Schedule(reqChan)
+			go func() {
+				defer close(reqChan)
+				reqChan <- &SquadRequest{
+					ReqType: string(REMOVED_SQUAD_AUTHORIZED_MEMBER),
+					From:    payload["userId"],
+					Payload: map[string]interface{}{
+						"userId": payload["userId"],
+					},
+				}
+			}()
+			select {
+			case <-d:
+				fmt.Println("uwuwuwuwuwuwuw donnnnee")
+			case ee := <-e:
+				fmt.Println("uuuuuuwuuuuuu", ee)
+			}
+			return
+
+		case string(NEW_AUTHORIZED_SQUAD_MEMBER):
+			if err := validateRequest(payload, "squadId", "userId"); err != nil {
+				return
+			}
+
+			reqChan := make(chan *SquadRequest)
+			d, e := zm.Manager.Squads[payload["squadId"]].SquadRequestScheduler.Schedule(reqChan)
+			go func() {
+				defer close(reqChan)
+				reqChan <- &SquadRequest{
+					ReqType: string(NEW_AUTHORIZED_SQUAD_MEMBER),
+					From:    payload["userId"],
+					Payload: map[string]interface{}{
+						"userId": payload["userId"],
+					},
+				}
+			}()
+			select {
+			case <-d:
+				fmt.Println("uwuwuwuwuwuwuw donnnnee")
+			case ee := <-e:
+				fmt.Println("uuuuuuwuuuuuu", ee)
+			}
+			return
+
+		case string(NEW_SQUAD):
+			logger.Println(payload)
+			if err := validateRequest(payload, "squadId", "squadName", "squadImageURL", "squadOwner", "squadCreationDate"); err != nil {
+				errCh <- err
+				return
+			}
+			squad, err := NewSquad(zm.Manager.ID, payload["squadId"], payload["squadName"], payload["squadImageURL"], payload["squadOwner"], payload["squadCreationDate"], true, []string{payload["squadOwner"]})
+			if err != nil {
+				errCh <- err
+				return
+			}
+			_ = atomicallyExecute(zm.Manager.squadFlag, func() (err error) {
+				zm.Manager.Squads[squad.ID] = squad
+				return
+			})
+		case string(HOSTED_SQUAD_OFFER):
+			if err := validateRequest(payload, SDP); err != nil {
+				errCh <- err
+				return
+			}
+			if err := zm.Manager.HandleOffer(ctx, req.GetFrom(), req.GetTo(), payload, zm.signalCandidate); err != nil {
+				errCh <- err
+				return
+			}
+		case string(HOSTED_SQUAD_ANSWER):
+			if err := validateRequest(payload, SDP); err != nil {
+				errCh <- err
+				return
+			}
+			if err := zm.Manager.HandleAnswer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
+				errCh <- err
+				return
+			}
+		case string(HOSTED_SQUAD_COUNTER_OFFER):
+			if err := zm.Manager.HandleCounterOffer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
+				errCh <- err
+				return
+			}
+		case string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_OFFER):
+			logger.Println("received negotiation offer")
+			if err := validateRequest(payload, SDP); err != nil {
+				errCh <- err
+				return
+			}
+			if err := zm.Manager.HandleRennegotiationOffer(req.GetFrom(), payload[SDP]); err != nil {
+				errCh <- err
+				return
+			}
+		case string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER):
+			logger.Println("received negotiation answer")
+			if err := validateRequest(payload, SDP); err != nil {
+				errCh <- err
+				return
+			}
+			if err := zm.Manager.HandleRennegotiationAnswer(req.GetFrom(), payload[SDP]); err != nil {
+				errCh <- err
+				return
+			}
+		case string(HOSTED_SQUAD_WEBRTC_CANDIDATE):
+			if err := validateRequest(payload, "candidate", "sdpMLineIndex", "sdpMid"); err != nil {
+				errCh <- err
+				return
+			}
+			logger.Println(payload)
+			i, err := strconv.Atoi(payload["sdpMLineIndex"])
+			if err != nil {
+				errCh <- err
+				return
+			}
+			SDPMLineIndex := uint16(i)
+			sdpMid := payload["sdpMid"]
+			logger.Println(sdpMid, SDPMLineIndex)
+			if err := zm.Manager.AddCandidate(&webrtc.ICECandidateInit{
+				Candidate:     payload["candidate"],
+				SDPMid:        &sdpMid,
+				SDPMLineIndex: &SDPMLineIndex,
+			}, req.GetFrom()); err != nil {
+				errCh <- err
+				return
+			}
+		default:
+			logger.Println("no request for squad grpc middleware")
+			logger.Println(payload)
+			logger.Println(req.Type)
+		}
+	}()
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	case err = <-errCh:
+		return
+	case <-done:
+		return
+	}
+}

squadManager.go

@@ -0,0 +1,742 @@
+package localserver
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strconv"
+	sync "sync"
+
+	"github.com/google/uuid"
+	"github.com/pion/webrtc/v3"
+)
+
+type SquadManager struct {
+	ID                 string
+	Squads             map[string]*Squad
+	LocalSD            map[string]*webrtc.SessionDescription
+	RTCPeerConnections map[string]*RTCPeerConnection
+	DataChannels       map[string]*DataChannel
+	PendingCandidates  map[string][]*webrtc.ICECandidate
+	stream             SignalingService_LinkClient
+	squadFlag          *uint32
+	peerConnectionFlag *uint32
+	localSDFlag        *uint32
+	dataChannelFlag    *uint32
+	candidateFlag      *uint32
+}
+
+type Squad struct {
+	ID                    string
+	Name                  string
+	ImageURL              string
+	Owner                 string
+	CreationDate          string
+	AuthorizedMembers     []string
+	DataChannels          map[string]*DataChannel
+	DataChannelsFlag      *uint32
+	SquadRequestScheduler *SquadRequestScheduler
+	Initialized           bool
+}
+
+func NewSquad(hostId string, squadId string, squadName string, imageUrl string, owner string, creationDate string, initialized bool, authorizedMembers []string) (squad *Squad, err error) {
+	dataChannels, dataChannelFlag := make(map[string]*DataChannel), uint32(0)
+	squadChatHandler, err := NewSquadChatsHandler(hostId, squadId, squadName, owner, authorizedMembers, dataChannels, &dataChannelFlag)
+	if err != nil {
+		return nil, err
+	}
+	squadVideoChannelsHandler, err := NewSquadVideoChannelsHandler(hostId, squadId, owner, authorizedMembers, dataChannels, &dataChannelFlag)
+	if err != nil {
+		return
+	}
+	squadNotificationsHandler, err := NewSquadNotificationsHandler(hostId, squadId, owner, authorizedMembers, dataChannels, &dataChannelFlag)
+	if err != nil {
+		return
+	}
+	squadScheduler, e := NewSquadRequestScheduler(authorizedMembers, squadVideoChannelsHandler, squadChatHandler, squadNotificationsHandler)
+	go func() {
+		for schedErr := range e {
+			logger.Println("from scheduler :", schedErr)
+		}
+	}()
+	squad = &Squad{
+		ID:                    squadId,
+		Name:                  squadName,
+		ImageURL:              imageUrl,
+		Owner:                 owner,
+		CreationDate:          creationDate,
+		Initialized:           initialized,
+		SquadRequestScheduler: squadScheduler,
+		DataChannels:          dataChannels,
+		DataChannelsFlag:      &dataChannelFlag,
+	}
+	fmt.Println("squad fking creeaeted", squad.Name)
+	return
+}
+
+func NewSquadManager(id string, token string) (squadManager *SquadManager, err error) {
+	squadFlag := uint32(0)
+	peerConnectionFlag := uint32(0)
+	localSDFlag := uint32(0)
+	dataChannelFlag := uint32(0)
+	candidateFlag := uint32(0)
+	dataChannels := make(map[string]*DataChannel)
+	squadMap := make(map[string]*Squad)
+	squads, err := squadManager.fetchSquads(id, token)
+	if err != nil {
+		return
+	}
+	for _, squad := range squads {
+		z, err := NewSquad(id, squad.ID, squad.Name, squad.ImageURL, squad.Owner, squad.CreationDate, true, squad.AuthorizedMembers)
+		if err != nil {
+			return nil, err
+		}
+		squadMap[squad.ID] = z
+	}
+	squadsFolder, err := os.ReadDir(filepath.Join(dataPath, "data", "squads"))
+	if err != nil {
+		if os.IsNotExist(err) {
+			if err = os.MkdirAll(filepath.Join(dataPath, "data", "squads"), 0770); err != nil {
+				return
+			}
+		} else {
+			return nil, err
+		}
+	}
+	logger.Println(squadMap)
+	squadManager = &SquadManager{
+		ID:                 id,
+		Squads:             squadMap,
+		LocalSD:            make(map[string]*webrtc.SessionDescription),
+		RTCPeerConnections: make(map[string]*RTCPeerConnection),
+		DataChannels:       dataChannels,
+		PendingCandidates:  make(map[string][]*webrtc.ICECandidate),
+		squadFlag:          &squadFlag,
+		peerConnectionFlag: &peerConnectionFlag,
+		localSDFlag:        &localSDFlag,
+		dataChannelFlag:    &dataChannelFlag,
+		candidateFlag:      &candidateFlag,
+	}
+	for _, z := range squadsFolder {
+		if _, ok := squadMap[z.Name()]; !ok {
+			logger.Println(squadManager.DeleteSquad(z.Name()))
+		}
+	}
+	return
+}
+
+func (zm *SquadManager) sendSignalingMessage(messageType, from, to string, payload map[string]interface{}) (err error) {
+	bs, err := json.Marshal(payload)
+	if err != nil {
+		return
+	}
+	err = zm.stream.Send(&SignalingMessage{
+		Type:    messageType,
+		From:    from,
+		To:      to,
+		Payload: bs,
+	})
+	return
+}
+
+func (zm *SquadManager) DeleteSquad(squadId string) error {
+	return os.RemoveAll(filepath.Join(dataPath, "data", "squads", squadId))
+}
+
+func (zm *SquadManager) fetchSquads(nodeId string, token string) (squads []*Squad, err error) {
+	em := NewEncryptionManager()
+	sig := em.SignRequestHMAC(nodeId)
+	body, err := json.Marshal(map[string]interface{}{
+		"type":     LIST_HOSTED_SQUADS_BY_HOST,
+		"mac":      sig,
+		"from":     nodeId,
+		"peerType": "node",
+		"payload": map[string]string{
+			"host":      nodeId,
+			"lastIndex": "0",
+		},
+	})
+	if err != nil {
+		return
+	}
+	res, err := HTTPClient.Post("https://dev.zippytal.com/req", "application/json", bytes.NewReader(body))
+	if err != nil {
+		logger.Println("error come from there inn squad manager")
+		return
+	}
+	bs, err := io.ReadAll(res.Body)
+	if err != nil {
+		return
+	}
+	var payload map[string]any
+	if err = json.Unmarshal(bs, &payload); err != nil {
+		return
+	}
+	b, err := json.Marshal(payload["squads"])
+	if err != nil {
+		return
+	}
+	err = json.Unmarshal(b, &squads)
+	return
+}
+
+func (zm *SquadManager) CreateOffer(ctx context.Context, target string, from string, squadId string, cb OnICECandidateFunc) (err error) {
+	peerConnection, err := zm.createPeerConnection(target, from, squadId, webrtc.SDPTypeOffer, cb)
+	if err != nil {
+		return
+	}
+	logger.Println("connection created")
+	rawOffer, err := peerConnection.CreateOffer(nil)
+	if err != nil {
+		return
+	}
+	if err = peerConnection.SetLocalDescription(rawOffer); err != nil {
+		return
+	}
+	_ = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+		id := uuid.New().String()
+		logger.Println("adding for target", target)
+		zm.RTCPeerConnections[target] = &RTCPeerConnection{
+			id:              id,
+			PeerConnection:  peerConnection,
+			makingOffer:     true,
+			makingOfferLock: &sync.Mutex{},
+			negotiate:       zm.negotiate,
+		}
+		return
+	})
+	err = zm.sendSignalingMessage(string(HOSTED_SQUAD_OFFER), zm.ID, target, map[string]any{
+		"to":   target,
+		"from": zm.ID,
+		"sdp":  rawOffer.SDP,
+	})
+	return
+}
+
+func (zm *SquadManager) HandleOffer(ctx context.Context, from string, to string, req map[string]string, cb OnICECandidateFunc) (err error) {
+	done, errCh := make(chan struct{}), make(chan error)
+	go func() {
+		if _, ok := zm.Squads[req["squadId"]]; !ok {
+			err = fmt.Errorf("no corresponding squad")
+			errCh <- err
+			return
+		}
+		logger.Println("handling squad offer")
+		_ = atomicallyExecute(zm.squadFlag, func() (err error) {
+			return
+		})
+		if _, ok := zm.RTCPeerConnections[from]; ok {
+			if e := zm.HandleLeavingMember(from, req["squadId"], false); e != nil {
+				logger.Println(e)
+			}
+		}
+		peerConnection, err := zm.createPeerConnection(from, to, req["squadId"], webrtc.SDPTypeAnswer, cb)
+		if err != nil {
+			errCh <- err
+			return
+		}
+		logger.Println("peer connection created")
+		_ = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+			id := uuid.New().String()
+			zm.RTCPeerConnections[from] = &RTCPeerConnection{
+				PeerConnection:  peerConnection,
+				id:              id,
+				makingOffer:     false,
+				makingOfferLock: &sync.Mutex{},
+				negotiate:       zm.negotiate,
+			}
+
+			logger.Println("peer connection added to map")
+			offer := webrtc.SessionDescription{
+				Type: webrtc.SDPTypeOffer,
+				SDP:  req[SDP],
+			}
+			if err = peerConnection.SetRemoteDescription(offer); err != nil {
+				errCh <- err
+				return
+			}
+			rawAnswer, err := peerConnection.CreateAnswer(nil)
+			if err != nil {
+				errCh <- err
+				return
+			}
+			_ = atomicallyExecute(zm.localSDFlag, func() (err error) {
+				zm.LocalSD[from] = &rawAnswer
+				return
+			})
+			if err = peerConnection.SetLocalDescription(rawAnswer); err != nil {
+				errCh <- err
+				return
+			}
+			if err = zm.sendSignalingMessage(string(HOSTED_SQUAD_ANSWER), zm.ID, from, map[string]any{
+				"to":   from,
+				"from": zm.ID,
+				"sdp":  rawAnswer.SDP,
+			}); err != nil {
+				errCh <- err
+				return
+			}
+			done <- struct{}{}
+			return
+		})
+	}()
+	select {
+	case <-done:
+		return
+	case err = <-errCh:
+		return
+	case <-ctx.Done():
+		err = ctx.Err()
+		return
+	}
+}
+
+func (zm *SquadManager) HandleAnswer(ctx context.Context, from string, to string, req map[string]string) (err error) {
+	defer func() {
+		if r := recover(); err != nil {
+			logger.Printf("recover from panic in handle answer : %v\n", r)
+		}
+	}()
+	if err = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+		if _, ok := zm.RTCPeerConnections[from]; !ok {
+			err = fmt.Errorf("no corresponding peer connection for id : %s", from)
+			return
+		}
+		peerConnnection := zm.RTCPeerConnections[from]
+		logger.Println("---------------------")
+		logger.Println(req[SDP])
+		logger.Println("---------------------")
+		if err = peerConnnection.SetRemoteDescription(webrtc.SessionDescription{
+			Type: webrtc.SDPTypeAnswer,
+			SDP:  req[SDP],
+		}); err != nil {
+			logger.Println("error occured while setting remote description in handle answer")
+			return
+		}
+		return
+	}); err != nil {
+		return
+	}
+	if err = zm.sendSignalingMessage(string(HOSTED_SQUAD_COUNTER_OFFER), zm.ID, from, map[string]any{
+		"from": zm.ID,
+		"to":   from,
+	}); err != nil {
+		return
+	}
+	_ = atomicallyExecute(zm.candidateFlag, func() (err error) {
+		for _, candidate := range zm.PendingCandidates[from] {
+			logger.Println("sending candidate from answer to", from)
+			if err = zm.sendSignalingMessage(string(HOSTED_SQUAD_WEBRTC_CANDIDATE), zm.ID, from, map[string]any{
+				"from":          zm.ID,
+				"to":            from,
+				"candidate":     candidate.ToJSON().Candidate,
+				"sdpMid":        *candidate.ToJSON().SDPMid,
+				"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+			}); err != nil {
+				logger.Println(err)
+				continue
+			}
+		}
+		delete(zm.PendingCandidates, from)
+		return
+	})
+	_ = atomicallyExecute(zm.localSDFlag, func() (err error) {
+		delete(zm.LocalSD, from)
+		return
+	})
+	return
+}
+
+func (zm *SquadManager) HandleCounterOffer(ctx context.Context, from string, to string, req map[string]string) (err error) {
+	_ = atomicallyExecute(zm.candidateFlag, func() (err error) {
+		for _, candidate := range zm.PendingCandidates[from] {
+			logger.Println("sending candidate to", from)
+			if err = zm.sendSignalingMessage(string(HOSTED_SQUAD_WEBRTC_CANDIDATE), zm.ID, from, map[string]any{
+				"from":          zm.ID,
+				"to":            from,
+				"candidate":     candidate.ToJSON().Candidate,
+				"sdpMid":        *candidate.ToJSON().SDPMid,
+				"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+			}); err != nil {
+				return
+			}
+		}
+		delete(zm.PendingCandidates, from)
+		return
+	})
+	_ = atomicallyExecute(zm.localSDFlag, func() (err error) {
+		delete(zm.LocalSD, from)
+		return
+	})
+	return
+}
+
+func (zm *SquadManager) createPeerConnection(target string, from string, squadId string, peerType webrtc.SDPType, cb OnICECandidateFunc) (peerConnection *webrtc.PeerConnection, err error) {
+	defer func() {
+		if r := recover(); err != nil {
+			logger.Printf("recover from panic : %v\n", r)
+		}
+	}()
+	config := webrtc.Configuration{
+		ICEServers: []webrtc.ICEServer{
+			{
+				URLs: []string{"stun:stun.l.google.com:19302"},
+			},
+		},
+		SDPSemantics: webrtc.SDPSemanticsUnifiedPlan,
+	}
+
+	peerConnection, err = webrtc.NewPeerConnection(config)
+	if err != nil {
+		return
+	}
+	logger.Println("---------------------------------------------------")
+	if peerType == webrtc.SDPTypeOffer {
+		channel, err := peerConnection.CreateDataChannel("data", &webrtc.DataChannelInit{})
+		if err != nil {
+			return nil, err
+		}
+		reqChan := make(chan *SquadRequest)
+		channel.OnOpen(func() {
+			logger.Println(squadId)
+			if _, ok := zm.Squads[squadId]; ok {
+				logger.Println("this squad exist")
+				_ = atomicallyExecute(zm.Squads[squadId].DataChannelsFlag, func() (err error) {
+					x := uint32(0)
+					zm.Squads[squadId].DataChannels[target] = &DataChannel{DataChannel: channel, bufferedAmountLowThresholdReached: make(<-chan struct{}), l: &x}
+					return
+				})
+				if _, ok := zm.Squads[squadId]; !ok {
+					err = fmt.Errorf("no corresponding squads")
+					return
+				}
+				done, err := zm.Squads[squadId].SquadRequestScheduler.Schedule(reqChan)
+				bs, jsonErr := json.Marshal(&SquadResponse{
+					Type:    "user_squad_init",
+					From:    squadId,
+					To:      target,
+					Payload: map[string]interface{}{},
+				})
+				if jsonErr != nil {
+					logger.Println("error in open channel", jsonErr)
+					return
+				}
+				if sendErr := channel.SendText(string(bs)); sendErr != nil {
+					logger.Println("error in open channel send", sendErr)
+					return
+				}
+				go func() {
+					for {
+						select {
+						case <-done:
+							return
+						case e := <-err:
+							logger.Println("----- error from scheduler:", e)
+						}
+					}
+				}()
+			}
+		})
+		channel.OnClose(func() {
+			close(reqChan)
+			//_ = zm.HandleLeavingMember(target, squadId, true)
+		})
+		channel.OnError(func(err error) {
+			close(reqChan)
+			//_ = zm.HandleLeavingMember(target, squadId, true)
+		})
+		channel.OnMessage(func(msg webrtc.DataChannelMessage) {
+			var req SquadRequest
+			if err := json.Unmarshal(msg.Data, &req); err != nil {
+				logger.Println(err)
+				return
+			}
+			logger.Println("incoming request", req)
+			reqChan <- &req
+		})
+		logger.Println("new channel for target : ", target)
+		logger.Println(target)
+		_ = atomicallyExecute(zm.dataChannelFlag, func() (err error) {
+			l := uint32(0)
+			zm.DataChannels[target] = &DataChannel{
+				DataChannel:                       channel,
+				bufferedAmountLowThresholdReached: make(<-chan struct{}),
+				l:                                 &l,
+			}
+			return
+		})
+	} else {
+		peerConnection.OnDataChannel(func(dc *webrtc.DataChannel) {
+			_ = atomicallyExecute(zm.dataChannelFlag, func() (err error) {
+				l := uint32(0)
+				zm.DataChannels[target] = &DataChannel{
+					DataChannel: dc,
+					l:           &l,
+				}
+				return
+			})
+			reqChan := make(chan *SquadRequest, 100)
+			if dc.Label() == "data" {
+				dc.OnOpen(func() {
+					logger.Println(squadId)
+					if _, ok := zm.Squads[squadId]; ok {
+						logger.Println("this squad exist")
+						_ = atomicallyExecute(zm.Squads[squadId].DataChannelsFlag, func() (err error) {
+							logger.Println("adding dc to dc map")
+							x := uint32(0)
+							zm.Squads[squadId].DataChannels[target] = &DataChannel{DataChannel: dc, bufferedAmountLowThresholdReached: make(<-chan struct{}), l: &x}
+							return
+						})
+						if _, ok := zm.Squads[squadId]; !ok {
+							err = fmt.Errorf("no corresponding squads")
+							return
+						}
+						done, err := zm.Squads[squadId].SquadRequestScheduler.Schedule(reqChan)
+						go func() {
+							for {
+								select {
+								case <-done:
+									return
+								case <-err:
+								}
+							}
+						}()
+					}
+				})
+				dc.OnClose(func() {
+					fmt.Println("closing gracefully event dc...")
+					close(reqChan)
+				})
+				dc.OnError(func(err error) {
+					logger.Println("--------------- error in dc:", err)
+					close(reqChan)
+				})
+				dc.OnMessage(func(msg webrtc.DataChannelMessage) {
+					var req SquadRequest
+					if err := json.Unmarshal(msg.Data, &req); err != nil {
+						logger.Println(err)
+						return
+					}
+					logger.Println("incoming request", req)
+					go func() {
+						reqChan <- &req
+					}()
+				})
+				_ = atomicallyExecute(zm.dataChannelFlag, func() (err error) {
+					l := uint32(0)
+					zm.DataChannels[target] = &DataChannel{
+						DataChannel:                       dc,
+						bufferedAmountLowThresholdReached: make(<-chan struct{}),
+						l:                                 &l,
+					}
+					return
+				})
+			} else {
+				if _, ok := zm.Squads[squadId]; ok {
+					fmt.Println("got new mtfking datachannel")
+					fmt.Println(dc.Label())
+					scheduler := zm.Squads[squadId].SquadRequestScheduler
+					l := uint32(0)
+					datachannel := &DataChannel{
+						DataChannel:                       dc,
+						bufferedAmountLowThresholdReached: make(<-chan struct{}),
+						l:                                 &l,
+					}
+					catched := scheduler.DispatchDatachannel(context.Background(), datachannel)
+					if !catched {
+						if closeErr := datachannel.DataChannel.Close(); closeErr != nil {
+							logger.Println(closeErr)
+						}
+					}
+				}
+			}
+		})
+	}
+	peerConnection.OnConnectionStateChange(func(pcs webrtc.PeerConnectionState) {
+		if pcs == webrtc.PeerConnectionStateDisconnected || pcs == webrtc.PeerConnectionStateFailed {
+			logger.Println(pcs)
+			if err = zm.HandleLeavingMember(target, squadId, true); err != nil {
+				logger.Println(err)
+			}
+		}
+	})
+	peerConnection.OnICEConnectionStateChange(func(is webrtc.ICEConnectionState) {
+		logger.Printf("ICE connection state has changed %s\n", is.String())
+	})
+	peerConnection.OnICECandidate(func(i *webrtc.ICECandidate) {
+		if i == nil {
+			return
+		}
+		_ = atomicallyExecute(zm.candidateFlag, func() (err error) {
+			desc := peerConnection.RemoteDescription()
+			if desc == nil {
+				logger.Println("generated candidate appended to list : ", i)
+				zm.PendingCandidates[target] = append(zm.PendingCandidates[target], i)
+			} else {
+				logger.Println("generated candidate : ", i)
+				if iceCandidateErr := cb(target, i); iceCandidateErr != nil {
+					logger.Println(iceCandidateErr)
+				}
+			}
+			return
+		})
+	})
+	return
+}
+
+func (zm *SquadManager) HandleRennegotiationOffer(from, sdp string) (err error) {
+	err = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+		if _, ok := zm.RTCPeerConnections[from]; !ok {
+			err = fmt.Errorf("no corresponding peer connection for id %s", from)
+			return
+		}
+		if err = zm.RTCPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeOffer}); err != nil {
+			return
+		}
+		localSd, err := zm.RTCPeerConnections[from].CreateAnswer(nil)
+		if err != nil {
+			return
+		}
+		if err = zm.RTCPeerConnections[from].SetLocalDescription(localSd); err != nil {
+			return
+		}
+		if err = zm.sendSignalingMessage(string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER), zm.ID, from, map[string]any{
+			"to":  from,
+			"sdp": localSd.SDP,
+		}); err != nil {
+			logger.Println(err)
+			return
+		}
+		return
+	})
+	return
+}
+
+func (zm *SquadManager) HandleRennegotiationAnswer(from string, sdp string) (err error) {
+	_ = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+		if _, ok := zm.RTCPeerConnections[from]; !ok {
+			err = fmt.Errorf("no corresponding peer connection for id %s", from)
+			return
+		}
+		err = zm.RTCPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeAnswer})
+		return
+	})
+	return
+}
+
+func (zm *SquadManager) AddCandidate(candidate *webrtc.ICECandidateInit, from string) (err error) {
+	_ = atomicallyExecute(zm.candidateFlag, func() (err error) {
+		if candidate != nil {
+			if connection, ok := zm.RTCPeerConnections[from]; ok {
+				err = connection.AddICECandidate(*candidate)
+			}
+		}
+		return
+	})
+	return
+}
+
+func (zm *SquadManager) HandleLeavingMember(id, squadId string, signalLeaving bool) (err error) {
+	fmt.Println("uwuwuwuuwuwuwuwuuwuwuuwuwuwuwuuwwuwu")
+	fmt.Println("handling leaving member")
+	logger.Println("---------------- handling leaving member", id)
+	if err = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+		if _, ok := zm.RTCPeerConnections[id]; !ok {
+			err = fmt.Errorf("no correponding peerconnection for id %s", id)
+			return
+		}
+		return
+	}); err != nil {
+		return
+	}
+	if signalLeaving {
+		nerr := zm.notifyLeavingMember(id, squadId, NodeID)
+		fmt.Println(nerr)
+	}
+	err = atomicallyExecute(zm.squadFlag, func() (err error) {
+		logger.Println(err)
+		logger.Println("---------------- cleaning squad handlers", id)
+		if squad, ok := zm.Squads[squadId]; ok {
+			for _, handlersPublishers := range squad.SquadRequestScheduler.handlersPublishers {
+				go func(hp chan<- *SquadRequest) {
+					hp <- &SquadRequest{
+						ReqType: LEAVE_SQUAD,
+						From:    id,
+						Payload: map[string]interface{}{
+							"userId": id,
+						},
+					}
+				}(handlersPublishers)
+			}
+			if err = atomicallyExecute(squad.DataChannelsFlag, func() (err error) {
+				defer delete(squad.DataChannels, id)
+				if dataChannel, ok := squad.DataChannels[id]; ok {
+					if err = dataChannel.DataChannel.Close(); err != nil {
+						return
+					}
+				}
+				return
+			}); err != nil {
+				fmt.Println(err)
+			}
+			logger.Println("datachannels cleaned", id)
+		} else {
+			err = fmt.Errorf("no corresponding squad for squadId %s", squadId)
+		}
+		logger.Println(err)
+		err = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+			if _, ok := zm.RTCPeerConnections[id]; ok {
+				defer delete(zm.RTCPeerConnections, id)
+				if err = zm.RTCPeerConnections[id].Close(); err != nil {
+					return
+				}
+			}
+			return
+		})
+		fmt.Println(err)
+		_ = atomicallyExecute(zm.candidateFlag, func() (err error) {
+			delete(zm.PendingCandidates, id)
+			return
+		})
+		return
+	})
+	return
+}
+
+func (zm *SquadManager) notifyLeavingMember(userId, squadId, hostId string) (err error) {
+	em := NewEncryptionManager()
+	sig := em.SignRequestHMAC(NodeID)
+	body, err := json.Marshal(map[string]interface{}{
+		"type":     DISCONNECT_SQUAD_MEMBER,
+		"mac":      sig,
+		"from":     NodeID,
+		"peerType": "node",
+		"payload": map[string]string{
+			"squadId": squadId,
+			"userId":  userId,
+		},
+	})
+	if err != nil {
+		return
+	}
+	_, err = HTTPClient.Post("https://dev.zippytal.com/req", "application/json", bytes.NewReader(body))
+	if err != nil {
+		logger.Println("error come from there in squad manager")
+		return
+	}
+	return
+}
+
+func (zm *SquadManager) negotiate(target string, squadId string) {
+	_ = atomicallyExecute(zm.peerConnectionFlag, func() (err error) {
+		if _, ok := zm.RTCPeerConnections[target]; !ok {
+			err = fmt.Errorf("no peerConnections")
+			return
+		}
+		return
+	})
+}

squadNotificationHandler.go

@@ -0,0 +1,124 @@
+package localserver
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+type SquadNotificationsHandler struct {
+	SquadId        string
+	SquadMembersId []string
+	DataChannels   map[string]*DataChannel
+	Flag           *uint32
+	Publishers     []<-chan *SquadRequest
+	reqChans       []chan<- *SquadRequest
+}
+
+func NewSquadNotificationsHandler(_ string, squadId string, owner string, authorizedMembers []string, dataChannels map[string]*DataChannel, flag *uint32) (squadNotificationsHandler *SquadNotificationsHandler, err error) {
+	if _, dirErr := os.ReadDir(filepath.Join(dataPath, "data", "squads", squadId, "notifications")); os.IsNotExist(dirErr) {
+		dirErr := os.MkdirAll(filepath.Join(dataPath, "data", "squads", squadId, "notifications"), 0700)
+		if dirErr != nil {
+			return
+		}
+	}
+	squadNotificationsHandler = &SquadNotificationsHandler{
+		SquadId:        squadId,
+		SquadMembersId: authorizedMembers,
+		DataChannels:   dataChannels,
+		Flag:           flag,
+	}
+	return
+}
+
+func (znh *SquadNotificationsHandler) Init(ctx context.Context, authorizedMembers []string) (err error) {
+	//? initialization code here
+	return
+}
+
+func (znh *SquadNotificationsHandler) Subscribe(ctx context.Context, publisher <-chan *SquadRequest) (reqChan chan *SquadRequest, done chan struct{}, errCh chan error) {
+	reqChan, done, errCh = make(chan *SquadRequest), make(chan struct{}), make(chan error)
+	znh.reqChans = append(znh.reqChans, reqChan)
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				done <- struct{}{}
+				return
+			case req := <-publisher:
+				if err := znh.handleSquadRequest(ctx, req); err != nil {
+					errCh <- err
+				}
+			}
+		}
+	}()
+	return
+}
+
+func (znh *SquadNotificationsHandler) ListNotifications(userId string) {}
+
+func (znh *SquadNotificationsHandler) CreateNotification(notificationType, title, body, payload string, isPushed bool, recipients ...string) (err error) {
+	if isPushed {
+		err = znh.PushNotification(notificationType, title, body, payload, recipients...)
+	}
+	return
+}
+
+func (znh *SquadNotificationsHandler) DeleteNotification() {}
+
+func (znh *SquadNotificationsHandler) PushNotification(notificationType, title, body, payload string, recipients ...string) (err error) {
+	em := NewEncryptionManager()
+	sig := em.SignRequestHMAC(NodeID)
+	b, err := json.Marshal(map[string]interface{}{
+		"type":     NOTIFY,
+		"mac":      sig,
+		"from":     NodeID,
+		"peerType": "node",
+		"payload": map[string]interface{}{
+			"type":       notificationType,
+			"title":      title,
+			"body":       body,
+			"recipients": recipients,
+			"payload":    payload,
+		},
+	})
+	if err != nil {
+		return
+	}
+	_, err = HTTPClient.Post("https://dev.zippytal.com/req", "application/json", bytes.NewReader(b))
+	if err != nil {
+		logger.Println("error come from there in squad manager")
+		return
+	}
+	return
+}
+
+func (znh SquadNotificationsHandler) handleDataChannel(ctx context.Context, dc *DataChannel) (catched bool) {
+	return
+}
+
+func (znh *SquadNotificationsHandler) handleSquadRequest(ctx context.Context, req *SquadRequest) (err error) {
+	switch req.ReqType {
+	case CREATE_NOTIFICATION:
+		if err = VerifyFieldsString(req.Payload, "type", "title", "body", "payload"); err != nil {
+			return
+		}
+		if err = VerifyFieldsBool(req.Payload, "isPushed"); err != nil {
+			return
+		}
+		if _, ok := req.Payload["recipients"]; !ok {
+			err = fmt.Errorf("no field recipient in payload")
+			return
+		}
+		if _, ok := req.Payload["recipients"].([]string); !ok {
+			err = fmt.Errorf(" field recipient in payload is wrong type")
+			return
+		}
+
+		err = znh.CreateNotification(req.Payload["type"].(string), req.Payload["title"].(string), req.Payload["body"].(string), req.Payload["payload"].(string), req.Payload["isPushed"].(bool), req.Payload["recipients"].([]string)...)
+	}
+	return
+}

squadRequestScheduler.go

@@ -0,0 +1,122 @@
+package localserver
+
+import (
+	"context"
+	"sync"
+	"time"
+)
+
+type SquadRequestScheduler struct {
+	handlersPublishers                   []chan<- *SquadRequest
+	handlersDataChannelDispatchCallbacks []DispatchDataChannelCallBack
+}
+
+type SquadRequest struct {
+	ReqType string         `json:"reqType"`
+	Payload map[string]any `json:"payload"`
+	From    string         `json:"from"`
+}
+
+type SquadResponse struct {
+	Type    string         `json:"type"`
+	To      string         `json:"to"`
+	From    string         `json:"from"`
+	Payload map[string]any `json:"payload"`
+}
+
+type SquadRequestHandler interface {
+	Init(ctx context.Context, authorizedMembers []string) (err error)
+	Subscribe(ctx context.Context, publisher <-chan *SquadRequest) (reqChan chan *SquadRequest, done chan struct{}, errCh chan error)
+	handleSquadRequest(ctx context.Context, req *SquadRequest) (err error)
+	handleDataChannel(ctx context.Context, dc *DataChannel) (catched bool)
+}
+
+func NewSquadRequestScheduler(authorizedMembers []string, handlers ...SquadRequestHandler) (squadRequestScheduler *SquadRequestScheduler, handlerErrCh chan error) {
+	squadRequestScheduler = new(SquadRequestScheduler)
+	squadRequestScheduler.handlersPublishers = make([]chan<- *SquadRequest, 0)
+	squadRequestScheduler.handlersDataChannelDispatchCallbacks = make([]DispatchDataChannelCallBack, 0)
+	handlerErrCh = make(chan error)
+	reqChans := []chan *SquadRequest{}
+	for _, handler := range handlers {
+		publisher := make(chan *SquadRequest, 100)
+		squadRequestScheduler.handlersPublishers = append(squadRequestScheduler.handlersPublishers, publisher)
+		squadRequestScheduler.handlersDataChannelDispatchCallbacks = append(squadRequestScheduler.handlersDataChannelDispatchCallbacks, handler.handleDataChannel)
+		reqChan, done, errCh := handler.Subscribe(context.Background(), publisher)
+		go func(done <-chan struct{}, errCh <-chan error) {
+			for {
+				select {
+				case <-done:
+					return
+				case handlerErrCh <- <-errCh:
+				}
+			}
+		}(done, errCh)
+		reqChans = append(reqChans, reqChan)
+	}
+
+	for _, reqChan := range reqChans {
+		go func(reqChan <-chan *SquadRequest) {
+			done, errCh := squadRequestScheduler.Schedule(reqChan)
+			for {
+				select {
+				case <-done:
+					return
+				case e := <-errCh:
+					logger.Println("from there", e)
+				}
+			}
+		}(reqChan)
+	}
+	for i, handler := range handlers {
+		if ierr := handler.Init(context.Background(), authorizedMembers); ierr != nil {
+			logger.Println(ierr)
+		}
+		logger.Println("init done for handler", i)
+	}
+	return
+}
+
+func (zrs *SquadRequestScheduler) Schedule(reqChan <-chan *SquadRequest) (done chan struct{}, errCh chan error) {
+	done, errCh = make(chan struct{}), make(chan error)
+	go func() {
+		for req := range reqChan {
+			go func(r *SquadRequest) {
+				for _, publisher := range zrs.handlersPublishers {
+					publisher <- r
+				}
+			}(req)
+		}
+		done <- struct{}{}
+	}()
+	return
+}
+
+func (zrs *SquadRequestScheduler) DispatchDatachannel(ctx context.Context, dc *DataChannel) (catched bool) {
+	wg, lock := sync.WaitGroup{}, &sync.Mutex{}
+	timeoutCtx, cancel := context.WithTimeout(ctx, 15*time.Second)
+	done := make(chan struct{})
+	defer cancel()
+	for _, dispatchCallback := range zrs.handlersDataChannelDispatchCallbacks {
+		wg.Add(1)
+		go func(w *sync.WaitGroup, dispatchCallback DispatchDataChannelCallBack) {
+			defer w.Done()
+			val := dispatchCallback(timeoutCtx, dc)
+			if val {
+				lock.Lock()
+				catched = true
+				lock.Unlock()
+				return
+			}
+		}(&wg, dispatchCallback)
+	}
+	go func() {
+		wg.Wait()
+		done <- struct{}{}
+	}()
+	select {
+	case <-done:
+		return
+	case <-timeoutCtx.Done():
+		return false
+	}
+}

squadVideoChannel.go

@@ -0,0 +1,828 @@
+package localserver
+
+// import (
+// 	"context"
+// 	"encoding/json"
+// 	"errors"
+// 	"fmt"
+// 	"io"
+// 	"strconv"
+// 	sync "sync"
+// 	"sync/atomic"
+// 	"time"
+
+// 	"github.com/google/uuid"
+// 	"github.com/pion/rtcp"
+// 	"github.com/pion/webrtc/v3"
+// )
+
+// type VideoChannel struct {
+// 	ID                       string                                `json:"id"`
+// 	Owner                    string                                `json:"owner"`
+// 	ChannelType              string                                `json:"channelType"`
+// 	Members                  []string                              `json:"members"`
+// 	CurrentMembersId         []string                              `json:"currentMembersId"`
+// 	CurrentMembers           map[string]*VideoChannelMember        `json:"currentMembers"`
+// 	localSD                  map[string]*webrtc.SessionDescription `json:"-"`
+// 	rtcPeerConnections       map[string]*ZoneRTCPeerConnection     `json:"-"`
+// 	audioTransceiver         map[string][]*PeerSender              `json:"-"`
+// 	videoTransceiver         map[string][]*PeerSender              `json:"-"`
+// 	videoChannelDataChannels map[string]*DataChannel               `json:"-"`
+// 	pendingCandidates        map[string][]*webrtc.ICECandidate     `json:"-"`
+// 	remoteTracks             map[string][]*RemoteTrack             `json:"-"`
+// 	middlewares              []interface{}                         `json:"-"`
+// 	candidateFlag            *uint32                               `json:"-"`
+// 	remoteTracksFlag         *uint32                               `json:"-"`
+// 	rtcPeerConnectionMapFlag *uint32                               `json:"-"`
+// 	dataChannelMapFlag       *uint32                               `json:"-"`
+// 	localSDMapFlag           *uint32                               `json:"-"`
+// 	audioSenderFlag          *uint32                               `json:"-"`
+// 	videoSenderFlag          *uint32                               `json:"-"`
+// }
+
+// type VideoChannelOnICECandidateFunc = func(string, string, *webrtc.ICECandidate) error
+
+// func NewVideoChannel(id string, owner string, channelType string, members []string, currentMembersId []string, currentMembers map[string]*VideoChannelMember) (audioChannel *VideoChannel) {
+// 	candidateFlag := uint32(0)
+// 	remoteTracksFlag := uint32(0)
+// 	rtcPeerConnectionMapFlag := uint32(0)
+// 	dataChannelMapFlag := uint32(0)
+// 	localSDMapFlag := uint32(0)
+// 	audioSenderFlag := uint32(0)
+// 	videoSenderFlag := uint32(0)
+// 	audioChannel = &VideoChannel{
+// 		ID:                       id,
+// 		Owner:                    owner,
+// 		ChannelType:              channelType,
+// 		Members:                  members,
+// 		CurrentMembersId:         currentMembersId,
+// 		CurrentMembers:           currentMembers,
+// 		localSD:                  make(map[string]*webrtc.SessionDescription),
+// 		videoTransceiver:         make(map[string][]*PeerSender),
+// 		rtcPeerConnections:       make(map[string]*ZoneRTCPeerConnection),
+// 		audioTransceiver:         make(map[string][]*PeerSender),
+// 		videoChannelDataChannels: make(map[string]*DataChannel),
+// 		pendingCandidates:        make(map[string][]*webrtc.ICECandidate),
+// 		remoteTracks:             make(map[string][]*RemoteTrack),
+// 		middlewares:              make([]interface{}, 0),
+// 		candidateFlag:            &candidateFlag,
+// 		remoteTracksFlag:         &remoteTracksFlag,
+// 		rtcPeerConnectionMapFlag: &rtcPeerConnectionMapFlag,
+// 		dataChannelMapFlag:       &dataChannelMapFlag,
+// 		localSDMapFlag:           &localSDMapFlag,
+// 		audioSenderFlag:          &audioSenderFlag,
+// 		videoSenderFlag:          &videoSenderFlag,
+// 	}
+// 	return
+// }
+
+// func (vc *VideoChannel) HandleOffer(ctx context.Context, channelId string, userId string, sdp string, hostId string, sendDCMessage SendDCMessageFunc, cb VideoChannelOnICECandidateFunc) (done chan struct{}, errCh chan error) {
+// 	done, errCh = make(chan struct{}), make(chan error)
+// 	go func() {
+// 		peerConnection, err := vc.createPeerConnection(userId, vc.ID, webrtc.SDPTypeAnswer, cb, sendDCMessage)
+// 		if err != nil {
+// 			errCh <- err
+// 			return
+// 		}
+// 		_ = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 			vc.rtcPeerConnections[userId] = &ZoneRTCPeerConnection{
+// 				PeerConnection:  peerConnection,
+// 				makingOffer:     false,
+// 				makingOfferLock: &sync.Mutex{},
+// 				negotiate:       vc.negotiate,
+// 			}
+// 			return
+// 		})
+// 		offer := webrtc.SessionDescription{
+// 			Type: webrtc.SDPTypeOffer,
+// 			SDP:  sdp,
+// 		}
+// 		if err = peerConnection.SetRemoteDescription(offer); err != nil {
+// 			errCh <- err
+// 			return
+// 		}
+// 		rawAnswer, err := peerConnection.CreateAnswer(nil)
+// 		if err != nil {
+// 			errCh <- err
+// 			return
+// 		}
+// 		if err = peerConnection.SetLocalDescription(rawAnswer); err != nil {
+// 			errCh <- err
+// 			return
+// 		}
+// 		_, _ = sendDCMessage(string(VIDEO_CHANNEL_WEBRTC_ANSWER), hostId, userId, map[string]interface{}{
+// 			"to":        userId,
+// 			"from":      vc.ID,
+// 			"channelId": channelId,
+// 			"sdp":       rawAnswer.SDP,
+// 		})
+// 		done <- struct{}{}
+// 		logger.Println("handle offer done")
+// 	}()
+// 	return
+// }
+
+// func (vc *VideoChannel) HandleCounterOffer(ctx context.Context, userId string, sendDCMessage SendDCMessageFunc) (err error) {
+// 	// if err = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 	// 	if _, ok := vc.rtcPeerConnections[userId]; !ok {
+// 	// 		err = fmt.Errorf("no field corresponding peer connection for id %s", userId)
+// 	// 		return
+// 	// 	}
+// 	// 	logger.Println("handling counter offer")
+// 	// 	connection := vc.rtcPeerConnections[userId]
+// 	// 	err = atomicallyExecute(vc.localSDMapFlag, func() (err error) {
+// 	// 		err = connection.SetLocalDescription(*vc.localSD[userId])
+// 	// 		return
+// 	// 	})
+// 	// 	return
+// 	// }); err != nil {
+// 	// 	return
+// 	// }
+// 	// _ = atomicallyExecute(vc.localSDMapFlag, func() (err error) {
+// 	// 	delete(vc.localSD, userId)
+// 	// 	return
+// 	// })
+// 	if err = atomicallyExecute(vc.candidateFlag, func() (err error) {
+// 		for _, candidate := range vc.pendingCandidates[userId] {
+// 			logger.Println("sending candidate to", userId, candidate)
+// 			d, e := sendDCMessage(string(VIDEO_CHANNEL_WEBRTC_CANDIDATE), "", userId, map[string]interface{}{
+// 				"from":          vc.ID,
+// 				"to":            userId,
+// 				"candidate":     candidate.ToJSON().Candidate,
+// 				"sdpMid":        *candidate.ToJSON().SDPMid,
+// 				"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+// 			})
+// 			select {
+// 			case <-d:
+// 			case err = <-e:
+// 				return
+// 			}
+// 		}
+// 		delete(vc.pendingCandidates, userId)
+// 		return
+// 	}); err != nil {
+// 		return
+// 	}
+// 	return
+// }
+
+// func (vc *VideoChannel) HandleRennegotiationOffer(from string, sdp string, sendDCMessage SendDCMessageFunc) (err error) {
+// 	err = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 		if _, ok := vc.rtcPeerConnections[from]; !ok {
+// 			err = fmt.Errorf("no corresponding peer connection for id %s", from)
+// 			return
+// 		}
+// 		// vc.rtcPeerConnections[from].makingOfferLock.Lock()
+// 		// if vc.rtcPeerConnections[from].makingOffer {
+// 		// 	vc.rtcPeerConnections[from].makingOfferLock.Unlock()
+// 		// 	return fmt.Errorf("already making an offer or state is stable")
+// 		// }
+// 		// vc.rtcPeerConnections[from].makingOfferLock.Unlock()
+// 		if err = vc.rtcPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeOffer}); err != nil {
+// 			return
+// 		}
+// 		localSd, err := vc.rtcPeerConnections[from].CreateAnswer(nil)
+// 		if err != nil {
+// 			return
+// 		}
+// 		if err = vc.rtcPeerConnections[from].SetLocalDescription(localSd); err != nil {
+// 			return
+// 		}
+// 		d, e := sendDCMessage(string(VIDEO_CHANNEL_WEBRTC_RENNEGOTIATION_ANSWER), vc.ID, from, map[string]interface{}{
+// 			"from": vc.ID,
+// 			"to":   from,
+// 			"sdp":  localSd.SDP,
+// 		})
+// 		select {
+// 		case <-d:
+// 		case err = <-e:
+// 		}
+// 		return
+// 	})
+// 	return
+// }
+
+// func (vc *VideoChannel) HandleRennegotiationAnswer(from string, sdp string) (err error) {
+// 	logger.Println("---------------------handling rennego answer")
+// 	err = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 		// vc.rtcPeerConnections[from].makingOfferLock.Lock()
+// 		// if vc.rtcPeerConnections[from].makingOffer {
+// 		// 	vc.rtcPeerConnections[from].makingOfferLock.Unlock()
+// 		// 	return fmt.Errorf("already making an offer or state is stable")
+// 		// }
+// 		// vc.rtcPeerConnections[from].makingOfferLock.Unlock()
+// 		// if _, ok := vc.rtcPeerConnections[from]; !ok {
+// 		// 	err = fmt.Errorf("no corresponding peer connection for id %s", from)
+// 		// 	return
+// 		// }
+// 		err = vc.rtcPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeAnswer})
+// 		return
+// 	})
+// 	return
+// }
+
+// func (vc *VideoChannel) AddCandidate(candidate *webrtc.ICECandidateInit, from string) (err error) {
+// 	logger.Println("adding ice candidate", candidate)
+// 	err = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 		if _, ok := vc.rtcPeerConnections[from]; ok && candidate != nil {
+// 			err = vc.rtcPeerConnections[from].AddICECandidate(*candidate)
+// 		}
+// 		return
+// 	})
+// 	return
+// }
+
+// func (vc *VideoChannel) createPeerConnection(target string, from string, peerType webrtc.SDPType, cb VideoChannelOnICECandidateFunc, sendDCMessage SendDCMessageFunc) (peerConnection *webrtc.PeerConnection, err error) {
+// 	defer func() {
+// 		if r := recover(); err != nil {
+// 			logger.Printf("recover from panic : %v\n", r)
+// 		}
+// 	}()
+// 	config := webrtc.Configuration{
+// 		ICEServers: []webrtc.ICEServer{
+// 			{
+// 				URLs: []string{"stun:stun.l.google.com:19302", "stun:stun.l.google.com:19302"},
+// 			},
+// 		},
+// 		SDPSemantics: webrtc.SDPSemanticsUnifiedPlanWithFallback,
+// 	}
+
+// 	peerConnection, err = webrtc.NewPeerConnection(config)
+// 	if err != nil {
+// 		return
+// 	}
+// 	logger.Println("---------------------------------------------------")
+// 	if peerType == webrtc.SDPTypeAnswer {
+// 		maxRetransmits := uint16(100)
+// 		channel, err := peerConnection.CreateDataChannel("video-channel", &webrtc.DataChannelInit{
+// 			MaxRetransmits: &maxRetransmits,
+// 		})
+// 		if err != nil {
+// 			return nil, err
+// 		}
+// 		channel.OnOpen(func() {
+// 			logger.Println("channel opened")
+// 			if chanErr := channel.SendText("yooo man this is open"); chanErr != nil {
+// 				logger.Println(chanErr)
+// 			}
+// 		})
+// 		channel.OnMessage(func(msg webrtc.DataChannelMessage) {
+// 			var event CallEvent
+// 			if err := json.Unmarshal(msg.Data, &event); err != nil {
+// 				logger.Println(err)
+// 				return
+// 			}
+// 			if e := vc.HandleDataChannelEvents(event.From, event.EventId, event.Payload); e != nil {
+// 				logger.Println("*-------------- datachannel error: ", e)
+// 			}
+// 		})
+// 		logger.Println("new channel for target : ", target)
+// 		_ = atomicallyExecute(vc.dataChannelMapFlag, func() (err error) {
+// 			logger.Println(target)
+// 			l := uint32(0)
+// 			vc.videoChannelDataChannels[target] = &DataChannel{
+// 				DataChannel: channel,
+// 				l:           &l,
+// 			}
+// 			return
+// 		})
+// 	} else {
+// 		peerConnection.OnDataChannel(func(dc *webrtc.DataChannel) {
+// 			_ = atomicallyExecute(vc.dataChannelMapFlag, func() (err error) {
+// 				l := uint32(0)
+// 				vc.videoChannelDataChannels[target] = &DataChannel{
+// 					DataChannel: dc,
+// 					l:           &l,
+// 				}
+// 				return
+// 			})
+// 			dc.OnOpen(func() {
+// 				logger.Printf("got a new open datachannel %s\n", dc.Label())
+// 			})
+// 			dc.OnMessage(func(msg webrtc.DataChannelMessage) {
+// 				var event CallEvent
+// 				if err := json.Unmarshal(msg.Data, &event); err != nil {
+// 					logger.Println(err)
+// 					return
+// 				}
+// 				if e := vc.HandleDataChannelEvents(event.From, event.EventId, event.Payload); e != nil {
+// 					logger.Println("*-------------- datachannel error: ", e)
+// 				}
+// 			})
+// 		})
+// 	}
+// 	err = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 		err = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 			logger.Println("------------------", vc.CurrentMembersId)
+// 			for _, id := range vc.CurrentMembersId {
+// 				logger.Println(id)
+// 				if id != target {
+// 					if _, ok := vc.remoteTracks[id]; !ok {
+// 						continue
+// 					}
+// 					for _, track := range vc.remoteTracks[id] {
+// 						transceiver, err := peerConnection.AddTransceiverFromKind(track.Track.Kind(), webrtc.RTPTransceiverInit{Direction: webrtc.RTPTransceiverDirectionSendonly})
+// 						if err != nil {
+// 							logger.Println("add track error")
+// 							continue
+// 						}
+// 						if err := transceiver.Sender().ReplaceTrack(track.Track); err != nil {
+// 							logger.Println("add track error")
+// 							continue
+// 						}
+// 						if track.Track.Kind() == webrtc.RTPCodecTypeVideo {
+// 							_ = atomicallyExecute(vc.videoSenderFlag, func() (err error) {
+// 								if len(vc.videoTransceiver) == 0 {
+// 									vc.videoTransceiver[id] = []*PeerSender{{ID: target, Transceiver: transceiver}}
+// 								} else {
+// 									vc.videoTransceiver[id] = append(vc.videoTransceiver[id], &PeerSender{ID: target, Transceiver: transceiver})
+// 								}
+// 								return
+// 							})
+// 						} else if track.Track.Kind() == webrtc.RTPCodecTypeAudio {
+// 							_ = atomicallyExecute(vc.audioSenderFlag, func() (err error) {
+// 								if len(vc.audioTransceiver) == 0 {
+// 									vc.audioTransceiver[id] = []*PeerSender{{ID: target, Transceiver: transceiver}}
+// 								} else {
+// 									vc.audioTransceiver[id] = append(vc.audioTransceiver[id], &PeerSender{ID: target, Transceiver: transceiver})
+// 								}
+// 								return
+// 							})
+// 						}
+// 						logger.Println("track added", track)
+// 					}
+// 				}
+// 			}
+// 			return
+// 		})
+// 		return
+// 	})
+// 	peerConnection.OnConnectionStateChange(func(pcs webrtc.PeerConnectionState) {
+// 		if pcs == webrtc.PeerConnectionStateClosed || pcs == webrtc.PeerConnectionStateDisconnected || pcs == webrtc.PeerConnectionStateFailed {
+// 			logger.Println(pcs)
+// 			//vc.HandleLeavingMember(target, squadId)
+// 		}
+// 	})
+// 	peerConnection.OnICEConnectionStateChange(func(is webrtc.ICEConnectionState) {
+// 		logger.Printf("ICE connection state has changed %s\n", is.String())
+// 		if is == webrtc.ICEConnectionStateDisconnected || is == webrtc.ICEConnectionStateFailed {
+// 			logger.Println(is)
+// 		}
+// 	})
+// 	peerConnection.OnTrack(func(tr *webrtc.TrackRemote, r *webrtc.RTPReceiver) {
+// 		logger.Println("got new track")
+// 		defer func() {
+// 			if stopErr := r.Stop(); stopErr != nil {
+// 				logger.Println(stopErr)
+// 			}
+// 		}()
+// 		go func() {
+// 			ticker := time.NewTicker(1500 * time.Millisecond)
+// 			for range ticker.C {
+// 				if rtcpSendErr := peerConnection.WriteRTCP([]rtcp.Packet{&rtcp.PictureLossIndication{MediaSSRC: uint32(tr.SSRC())}}); rtcpSendErr != nil {
+// 					logger.Println(rtcpSendErr)
+// 					break
+// 				}
+// 			}
+// 		}()
+// 		uniqId := uuid.New()
+// 		i := fmt.Sprintf("%s/%s", target, uniqId.String())
+// 		logger.Println("*************************----------------", i, "-----------------------***************")
+// 		localTrack, newTrackErr := webrtc.NewTrackLocalStaticRTP(tr.Codec().RTPCodecCapability, i, i)
+// 		if newTrackErr != nil {
+// 			return
+// 		}
+// 		logger.Println(localTrack)
+// 		rtpbuf := make([]byte, 1400)
+// 		flag := int32(0)
+// 		remote := &RemoteTrack{ID: target, Track: localTrack, rdv: &flag}
+// 		_ = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 			if len(vc.remoteTracks[target]) == 0 {
+// 				vc.remoteTracks[target] = []*RemoteTrack{remote}
+// 			} else {
+// 				vc.remoteTracks[target] = append(vc.remoteTracks[target], remote)
+// 			}
+// 			index := len(vc.remoteTracks[target])
+// 			logger.Println(index, vc.remoteTracks)
+// 			return
+// 		})
+// 		_ = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 			for _, id := range vc.CurrentMembersId {
+// 				if id != target {
+// 					if _, ok := vc.rtcPeerConnections[id]; !ok {
+// 						continue
+// 					}
+// 					connection := vc.rtcPeerConnections[id]
+// 					transceiver, tranceiverErr := connection.AddTransceiverFromKind(localTrack.Kind(), webrtc.RTPTransceiverInit{Direction: webrtc.RTPTransceiverDirectionSendonly})
+// 					if tranceiverErr != nil {
+// 						logger.Println(tranceiverErr)
+// 						continue
+// 					}
+// 					if replaceTrackErr := transceiver.Sender().ReplaceTrack(localTrack); replaceTrackErr != nil {
+// 						logger.Println(replaceTrackErr)
+// 						continue
+// 					}
+// 					go func() {
+// 						rtcpBuf := make([]byte, 1500)
+// 						for {
+// 							if _, _, rtcpErr := transceiver.Sender().Read(rtcpBuf); rtcpErr != nil {
+// 								return
+// 							}
+// 						}
+// 					}()
+// 					if localTrack.Kind() == webrtc.RTPCodecTypeAudio {
+// 						_ = atomicallyExecute(vc.audioSenderFlag, func() (err error) {
+// 							if len(vc.audioTransceiver) == 0 {
+// 								vc.audioTransceiver[target] = []*PeerSender{{ID: id, Transceiver: transceiver}}
+// 							} else {
+// 								vc.audioTransceiver[target] = append(vc.audioTransceiver[target], &PeerSender{ID: id, Transceiver: transceiver})
+// 							}
+// 							return
+// 						})
+// 					} else if localTrack.Kind() == webrtc.RTPCodecTypeVideo {
+// 						_ = atomicallyExecute(vc.videoSenderFlag, func() (err error) {
+// 							if len(vc.videoTransceiver) == 0 {
+// 								vc.videoTransceiver[target] = []*PeerSender{{ID: id, Transceiver: transceiver}}
+// 							} else {
+// 								vc.videoTransceiver[target] = append(vc.videoTransceiver[target], &PeerSender{ID: id, Transceiver: transceiver})
+// 							}
+// 							return
+// 						})
+// 					}
+// 					go func() {
+// 						<-time.After(time.Second * 1)
+// 						connection.negotiate(id, sendDCMessage)
+// 					}()
+// 				}
+// 			}
+// 			return
+// 		})
+// 		d := make(chan struct{})
+// 		go func() {
+// 			for {
+// 				i, _, readErr := tr.Read(rtpbuf)
+// 				if readErr != nil {
+// 					logger.Println(readErr)
+// 					break
+// 				}
+// 				f := atomic.LoadInt32(remote.rdv)
+// 				if f == 0 {
+// 					if _, writeErr := localTrack.Write(rtpbuf[:i]); writeErr != nil && !errors.Is(writeErr, io.ErrClosedPipe) {
+// 						logger.Println(writeErr)
+// 						break
+// 					} else {
+// 						_ = rtpbuf[:i]
+// 					}
+// 				}
+// 			}
+// 			d <- struct{}{}
+// 		}()
+// 		<-d
+// 	})
+// 	peerConnection.OnICECandidate(func(i *webrtc.ICECandidate) {
+// 		if i == nil {
+// 			return
+// 		}
+// 		_ = atomicallyExecute(vc.candidateFlag, func() (err error) {
+// 			desc := peerConnection.RemoteDescription()
+// 			if desc == nil {
+// 				logger.Println("generated candidate appended to list : ", i)
+// 				vc.pendingCandidates[target] = append(vc.pendingCandidates[target], i)
+// 			} else {
+// 				logger.Println("generated candidate : ", i)
+// 				if iceCandidateErr := cb(from, target, i); iceCandidateErr != nil {
+// 					logger.Println(iceCandidateErr)
+// 				}
+// 			}
+// 			return
+// 		})
+// 	})
+// 	// peerConnection.OnNegotiationNeeded(func() {
+// 	// 	logger.Println("---------------- rennego is needed -----------")
+// 	// 	// _ = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 	// 	// 	for _, id := range vc.CurrentMembersId {
+// 	// 	// 		logger.Println("----------------- sending renego to peer with id", id)
+// 	// 	// 		if _, ok := vc.rtcPeerConnections[id]; !ok {
+// 	// 	// 			continue
+// 	// 	// 		}
+// 	// 	// 		if peerConnection.SignalingState() == webrtc.SignalingStateStable {
+// 	// 	// 			localSd, localSdErr := peerConnection.CreateOffer(nil)
+// 	// 	// 			if localSdErr != nil {
+// 	// 	// 				logger.Println(localSdErr)
+// 	// 	// 				return localSdErr
+// 	// 	// 			}
+// 	// 	// 			if err = peerConnection.SetLocalDescription(localSd); err != nil {
+// 	// 	// 				logger.Println(err)
+// 	// 	// 				return
+// 	// 	// 			}
+// 	// 	// 			d, e := sendDCMessage(string(VIDEO_CHANNEL_WEBRTC_RENNEGOTIATION_OFFER), vc.ID, id, map[string]interface{}{
+// 	// 	// 				"from": vc.ID,
+// 	// 	// 				"to":   id,
+// 	// 	// 				"sdp":  localSd.SDP,
+// 	// 	// 			})
+// 	// 	// 			select {
+// 	// 	// 			case <-d:
+// 	// 	// 			case err = <-e:
+// 	// 	// 				logger.Println(err)
+// 	// 	// 			}
+// 	// 	// 		}
+// 	// 	// 	}
+// 	// 	// 	return
+// 	// 	// })
+// 	// })
+// 	return
+// }
+
+// func (vc *VideoChannel) HandleLeavingMember(id string) {
+// 	if err := atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 		if _, ok := vc.rtcPeerConnections[id]; !ok {
+// 			err = fmt.Errorf("no corresponding peerconnection for audio channel leaving member")
+// 		}
+// 		return
+// 	}); err != nil {
+// 		logger.Println(err)
+// 	} else {
+// 		defer func() {
+// 			_ = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 				if _, ok := vc.rtcPeerConnections[id]; ok {
+// 					if closeErr := vc.rtcPeerConnections[id].Close(); closeErr != nil {
+// 						err = closeErr
+// 						logger.Println("peer connection close error", closeErr)
+// 					}
+// 				}
+// 				delete(vc.rtcPeerConnections, id)
+// 				return
+// 			})
+// 		}()
+// 	}
+// 	logger.Printf("peer %s is leaving the squad\n", id)
+// 	_ = atomicallyExecute(vc.dataChannelMapFlag, func() (err error) {
+// 		if _, ok := vc.videoChannelDataChannels[id]; ok {
+// 			vc.videoChannelDataChannels[id].DataChannel.Close()
+// 		}
+// 		delete(vc.videoChannelDataChannels, id)
+// 		return
+// 	})
+// 	_ = atomicallyExecute(vc.localSDMapFlag, func() (err error) {
+// 		delete(vc.localSD, id)
+// 		return
+// 	})
+// 	_ = atomicallyExecute(vc.candidateFlag, func() (err error) {
+// 		delete(vc.pendingCandidates, id)
+// 		return
+// 	})
+// 	_ = atomicallyExecute(vc.audioSenderFlag, func() (err error) {
+// 		for peerId, peerSender := range vc.audioTransceiver {
+// 			if peerId != id {
+// 				logger.Println("senders", peerSender)
+// 				c := 0
+// 				for i, sender := range peerSender {
+// 					if sender.ID == id {
+// 						if senderErr := sender.Transceiver.Sender().Stop(); senderErr != nil {
+// 							logger.Println(senderErr)
+// 						}
+// 						if transceiverErr := sender.Transceiver.Stop(); transceiverErr != nil {
+// 							logger.Println("transceiverErr occured with video", transceiverErr)
+// 						}
+// 						peerSender[len(peerSender)-i-1], peerSender[i] = peerSender[i], peerSender[len(peerSender)-i-1]
+// 						c++
+// 					}
+// 				}
+// 				vc.audioTransceiver[peerId] = vc.audioTransceiver[peerId][:len(peerSender)-(c)]
+// 				logger.Println(vc.audioTransceiver[peerId])
+// 			}
+// 		}
+// 		for _, transceiver := range vc.audioTransceiver[id] {
+// 			if senderErr := transceiver.Transceiver.Sender().Stop(); senderErr != nil {
+// 				logger.Println(senderErr)
+// 			}
+// 			if stopErr := transceiver.Transceiver.Stop(); stopErr != nil {
+// 				logger.Println("transceiver audio stop error", stopErr)
+// 			}
+// 		}
+// 		delete(vc.audioTransceiver, id)
+// 		return
+// 	})
+// 	_ = atomicallyExecute(vc.videoSenderFlag, func() (err error) {
+// 		for peerId, peerSender := range vc.videoTransceiver {
+// 			if peerId != id {
+// 				logger.Println("senders", peerSender)
+// 				c := 0
+// 				for i, sender := range peerSender {
+// 					if sender.ID == id {
+// 						if senderErr := sender.Transceiver.Sender().Stop(); senderErr != nil {
+// 							logger.Println(senderErr)
+// 						}
+// 						if transceiverErr := sender.Transceiver.Stop(); transceiverErr != nil {
+// 							logger.Println("transceiverErr occured with video", transceiverErr)
+// 						}
+// 						peerSender[len(peerSender)-i-1], peerSender[i] = peerSender[i], peerSender[len(peerSender)-i-1]
+// 						c++
+// 					}
+// 				}
+// 				vc.videoTransceiver[peerId] = vc.videoTransceiver[peerId][:len(peerSender)-(c)]
+// 				logger.Println(vc.videoTransceiver[peerId])
+// 			}
+// 		}
+// 		for _, transceiver := range vc.videoTransceiver[id] {
+// 			if senderErr := transceiver.Transceiver.Sender().Stop(); senderErr != nil {
+// 				logger.Println(senderErr)
+// 			}
+// 			if stopErr := transceiver.Transceiver.Stop(); stopErr != nil {
+// 				logger.Println("transceiver video stop error", stopErr)
+// 			}
+// 		}
+// 		delete(vc.videoTransceiver, id)
+// 		return
+// 	})
+// 	_ = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 		delete(vc.remoteTracks, id)
+// 		return
+// 	})
+// }
+
+// func (vc *VideoChannel) negotiate(target string, sendDCMessage SendDCMessageFunc) {
+// 	logger.Println("------------------negotiate is called")
+// 	_ = atomicallyExecute(vc.rtcPeerConnectionMapFlag, func() (err error) {
+// 		if _, ok := vc.rtcPeerConnections[target]; !ok {
+// 			return
+// 		}
+// 		// vc.rtcPeerConnections[target].makingOfferLock.Lock()
+// 		// vc.rtcPeerConnections[target].makingOffer = true
+// 		// vc.rtcPeerConnections[target].makingOfferLock.Unlock()
+// 		defer func() {
+// 			// vc.rtcPeerConnections[target].makingOfferLock.Lock()
+// 			// vc.rtcPeerConnections[target].makingOffer = false
+// 			// vc.rtcPeerConnections[target].makingOfferLock.Unlock()
+// 		}()
+
+// 		for _, id := range vc.CurrentMembersId {
+// 			logger.Println("----------------- sending renego to peer with id", id)
+// 			if _, ok := vc.rtcPeerConnections[id]; !ok {
+// 				continue
+// 			}
+// 			connection := vc.rtcPeerConnections[id]
+// 			if connection.SignalingState() == webrtc.SignalingStateStable {
+// 				localSd, err := connection.CreateOffer(nil)
+// 				if err != nil {
+// 					logger.Println(err)
+// 					return err
+// 				}
+// 				if err = connection.SetLocalDescription(localSd); err != nil {
+// 					logger.Println(err)
+// 					return err
+// 				}
+// 				d, e := sendDCMessage(string(VIDEO_CHANNEL_WEBRTC_RENNEGOTIATION_OFFER), vc.ID, id, map[string]interface{}{
+// 					"from": vc.ID,
+// 					"to":   id,
+// 					"sdp":  localSd.SDP,
+// 				})
+// 				select {
+// 				case <-d:
+// 				case err = <-e:
+// 					logger.Println(err)
+// 				}
+// 			}
+// 		}
+// 		return
+// 	})
+// }
+
+// func (vc *VideoChannel) broadcastDatachannelMessage(from string, eventId string, payload map[string]interface{}) (done chan struct{}, errCh chan error) {
+// 	done, errCh = make(chan struct{}), make(chan error)
+// 	go func() {
+// 		bs, jsonErr := json.Marshal(&ZoneResponse{
+// 			Type:    eventId,
+// 			From:    vc.ID,
+// 			Payload: payload,
+// 		})
+// 		if jsonErr != nil {
+// 			errCh <- jsonErr
+// 			return
+// 		}
+// 		if err := atomicallyExecute(vc.dataChannelMapFlag, func() (err error) {
+// 			for id, dc := range vc.videoChannelDataChannels {
+// 				if from != id {
+// 					if err = dc.DataChannel.SendText(string(bs)); err != nil {
+// 						return
+// 					}
+// 				}
+// 			}
+// 			return
+// 		}); err != nil {
+// 			errCh <- err
+// 		}
+// 		done <- struct{}{}
+// 	}()
+// 	return
+// }
+
+// func (vc *VideoChannel) HandleDataChannelEvents(from string, eventId string, payload map[string]interface{}) (err error) {
+// 	switch eventId {
+// 	case VIDEO_CHANNEL_USER_VIDEO_STOP:
+// 		if err = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 			if _, ok := vc.remoteTracks[from]; !ok {
+// 				err = fmt.Errorf("no corresponding remote tracks entry for id %s", from)
+// 				return
+// 			}
+// 			for _, track := range vc.remoteTracks[from] {
+// 				if track.Track.Kind() == webrtc.RTPCodecTypeVideo {
+// 					atomic.SwapInt32(track.rdv, 1)
+// 				}
+// 			}
+// 			return
+// 		}); err != nil {
+// 			return
+// 		}
+// 		done, errCh := vc.broadcastDatachannelMessage(from, VIDEO_CHANNEL_USER_VIDEO_STOP, map[string]interface{}{
+// 			"userId": from,
+// 		})
+// 		select {
+// 		case <-done:
+// 		case err = <-errCh:
+// 		}
+// 	case VIDEO_CHANNEL_USER_VIDEO_RESUME:
+// 		if err = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 			if _, ok := vc.remoteTracks[from]; !ok {
+// 				err = fmt.Errorf("no corresponding remote tracks entry for id %s", from)
+// 				return
+// 			}
+// 			for _, track := range vc.remoteTracks[from] {
+// 				if track.Track.Kind() == webrtc.RTPCodecTypeVideo {
+// 					atomic.SwapInt32(track.rdv, 0)
+// 				}
+// 			}
+// 			return
+// 		}); err != nil {
+// 			return
+// 		}
+// 		done, errCh := vc.broadcastDatachannelMessage(from, VIDEO_CHANNEL_USER_VIDEO_RESUME, map[string]interface{}{
+// 			"userId": from,
+// 		})
+// 		select {
+// 		case <-done:
+// 		case err = <-errCh:
+// 		}
+// 	case VIDEO_CHANNEL_USER_MUTE:
+// 		if err = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 			if _, ok := vc.remoteTracks[from]; !ok {
+// 				err = fmt.Errorf("no corresponding remote tracks entry for id %s", from)
+// 				return
+// 			}
+// 			for _, track := range vc.remoteTracks[from] {
+// 				if track.Track.Kind() == webrtc.RTPCodecTypeAudio {
+// 					atomic.SwapInt32(track.rdv, 1)
+// 				}
+// 			}
+// 			return
+// 		}); err != nil {
+// 			return
+// 		}
+// 		done, errCh := vc.broadcastDatachannelMessage(from, VIDEO_CHANNEL_USER_MUTE, map[string]interface{}{
+// 			"userId": from,
+// 		})
+// 		select {
+// 		case <-done:
+// 		case err = <-errCh:
+// 		}
+// 	case VIDEO_CHANNEL_USER_UNMUTE:
+// 		if err = atomicallyExecute(vc.remoteTracksFlag, func() (err error) {
+// 			if _, ok := vc.remoteTracks[from]; !ok {
+// 				err = fmt.Errorf("no corresponding remote tracks entry for id %s", from)
+// 				return
+// 			}
+// 			for _, track := range vc.remoteTracks[from] {
+// 				if track.Track.Kind() == webrtc.RTPCodecTypeAudio {
+// 					atomic.SwapInt32(track.rdv, 0)
+// 				}
+// 			}
+// 			return
+// 		}); err != nil {
+// 			return
+// 		}
+// 		done, errCh := vc.broadcastDatachannelMessage(from, VIDEO_CHANNEL_USER_UNMUTE, map[string]interface{}{
+// 			"userId": from,
+// 		})
+// 		select {
+// 		case <-done:
+// 		case err = <-errCh:
+// 		}
+// 	case VIDEO_CHANNEL_USER_SPEAKING:
+// 		done, errCh := vc.broadcastDatachannelMessage(from, VIDEO_CHANNEL_USER_SPEAKING, map[string]interface{}{
+// 			"userId": from,
+// 		})
+// 		select {
+// 		case <-done:
+// 		case err = <-errCh:
+// 		}
+// 	case VIDEO_CHANNEL_USER_STOPPED_SPEAKING:
+// 		done, errCh := vc.broadcastDatachannelMessage(from, VIDEO_CHANNEL_USER_STOPPED_SPEAKING, map[string]interface{}{
+// 			"userId": from,
+// 		})
+// 		select {
+// 		case <-done:
+// 		case err = <-errCh:
+// 		}
+// 	}
+// 	return
+// }

squadVideoChannelHandler.go

@@ -0,0 +1,398 @@
+package localserver
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/pion/webrtc/v3"
+)
+
+type SquadVideoChannelsHandler struct {
+	SquadId                   string
+	SquadName                 string
+	HostId                    string
+	SquadMembersId            []string
+	DataChannels              map[string]*DataChannel
+	VideoChanDataChannels     map[string]*DataChannel
+	VideoChanDataChannelsFlag *uint32
+	DataChannelsFlag          *uint32
+	VideoChannelsFlag         *uint32
+	VideoChannel              *VideoChannel
+	reqChans                  []chan<- *SquadRequest
+}
+
+func NewSquadVideoChannelsHandler(hostId string, squadId string, owner string, authorizedMembers []string, dataChannels map[string]*DataChannel, dataChannelFlag *uint32) (squadVideoChannelsHandler *SquadVideoChannelsHandler, err error) {
+	_, err = os.ReadDir(filepath.Join(dataPath, "data", "squads", squadId, "videoChannel"))
+	if err != nil {
+		if os.IsNotExist(err) {
+			logger.Printf("creating videoChannels directory for squad %s...\n", squadId)
+			mkdirErr := os.MkdirAll(filepath.Join(dataPath, "data", "squads", squadId, "videoChannel"), 0700)
+			if mkdirErr != nil {
+				return nil, mkdirErr
+			}
+			file, ferr := os.Create(filepath.Join(dataPath, "data", "squads", squadId, "videoChannel", "videoChannelConfig.json"))
+			defer func() {
+				_ = file.Close()
+			}()
+			if ferr != nil {
+				return nil, ferr
+			}
+			baseConfig := VideoChannelConfig{
+				ID:               MEETING,
+				Owner:            owner,
+				ChannelType:      "public",
+				CurrentMembersId: make([]string, 0),
+				Members:          make([]string, 0),
+			}
+			bs, jsonErr := json.Marshal(baseConfig)
+			if jsonErr != nil {
+				return nil, jsonErr
+			}
+			if _, writeErr := file.WriteString(string(bs)); writeErr != nil {
+				return nil, writeErr
+			}
+			_, err = os.ReadDir(filepath.Join(dataPath, "data", "squads", squadId, "videoChannel"))
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			return
+		}
+	}
+
+	var bs []byte
+	bs, err = os.ReadFile(filepath.Join(dataPath, "data", "squads", squadId, "videoChannel", "videoChannelConfig.json"))
+	if err != nil {
+		return nil, err
+	}
+	logger.Println(string(bs))
+	var vcc VideoChannelConfig
+	if err = json.Unmarshal(bs, &vcc); err != nil {
+		return nil, err
+	}
+	logger.Println("videoChannels data :", vcc.ID, vcc.ChannelType, vcc.Owner, vcc.Members)
+	vc := NewVideoChannel(vcc.ID, vcc.Owner, vcc.ChannelType, vcc.Members, make([]string, 0), make(map[string]*VideoChannelMember))
+	videoChannelFlag := uint32(0)
+	videoChanDCFlag := uint32(0)
+	squadVideoChannelsHandler = &SquadVideoChannelsHandler{
+		SquadId:                   squadId,
+		HostId:                    hostId,
+		SquadMembersId:            authorizedMembers,
+		DataChannels:              dataChannels,
+		VideoChanDataChannels:     make(map[string]*DataChannel),
+		VideoChanDataChannelsFlag: &videoChanDCFlag,
+		DataChannelsFlag:          dataChannelFlag,
+		VideoChannel:              vc,
+		VideoChannelsFlag:         &videoChannelFlag,
+	}
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) sendDataChannelMessage(reqType string, from string, to string, payload map[string]interface{}) (<-chan struct{}, <-chan error) {
+	done, errCh := make(chan struct{}), make(chan error)
+	go func() {
+		if err := atomicallyExecute(zvch.VideoChanDataChannelsFlag, func() (err error) {
+			if _, ok := zvch.VideoChanDataChannels[to]; ok {
+				bs, jsonErr := json.Marshal(&SquadResponse{
+					Type:    reqType,
+					From:    from,
+					To:      to,
+					Payload: payload,
+				})
+				if jsonErr != nil {
+					return jsonErr
+				}
+				err = zvch.VideoChanDataChannels[to].DataChannel.SendText(string(bs))
+			}
+			return
+		}); err != nil {
+			errCh <- err
+			return
+		}
+		done <- struct{}{}
+	}()
+	return done, errCh
+}
+
+func (zvch *SquadVideoChannelsHandler) Init(ctx context.Context, authorizedMembers []string) (err error) {
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) Subscribe(ctx context.Context, publisher <-chan *SquadRequest) (reqChan chan *SquadRequest, done chan struct{}, errCh chan error) {
+	reqChan, done, errCh = make(chan *SquadRequest), make(chan struct{}), make(chan error)
+	zvch.reqChans = append(zvch.reqChans, reqChan)
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				done <- struct{}{}
+				return
+			case req := <-publisher:
+				if err := zvch.handleSquadRequest(ctx, req); err != nil {
+					errCh <- err
+				}
+			}
+		}
+	}()
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) signalCandidate(from string, to string, candidate *webrtc.ICECandidate) (err error) {
+	d, e := zvch.sendDataChannelMessage(string(VIDEO_CHANNEL_WEBRTC_CANDIDATE), from, to, map[string]interface{}{
+		"from":          from,
+		"to":            to,
+		"candidate":     candidate.ToJSON().Candidate,
+		"sdpMid":        *candidate.ToJSON().SDPMid,
+		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+	})
+	select {
+	case <-d:
+	case err = <-e:
+	}
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) JoinVideoChannel(channelId string, userId string, sdp string) (err error) {
+	err = atomicallyExecute(zvch.VideoChannelsFlag, func() (err error) {
+		videoChannel := zvch.VideoChannel
+		videoChannel.CurrentMembersId = append(videoChannel.CurrentMembersId, userId)
+		videoChannel.CurrentMembers[userId] = &VideoChannelMember{}
+		signalMembers := func(members []string) {
+			for _, u := range members {
+				done, e := zvch.sendDataChannelMessage(USER_JOINED_VIDEO_CHANNEL, "node", u, map[string]interface{}{
+					"userId":    userId,
+					"channelId": channelId,
+				})
+				select {
+				case <-done:
+				case err := <-e:
+					logger.Println(err)
+				}
+			}
+		}
+
+		signalMembers(zvch.SquadMembersId)
+		d, e := videoChannel.HandleOffer(context.Background(), channelId, userId, sdp, zvch.HostId, zvch.sendDataChannelMessage, zvch.signalCandidate)
+		select {
+		case <-d:
+		case err = <-e:
+		}
+		return
+	})
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) LeaveVideoChannel(channelId string, userId string) (err error) {
+	err = atomicallyExecute(zvch.VideoChannelsFlag, func() (err error) {
+		videoChannel := zvch.VideoChannel
+		var index int
+		var contain bool
+		for i, v := range videoChannel.CurrentMembersId {
+			if v == userId {
+				index = i
+				contain = true
+			}
+		}
+		if !contain {
+			err = fmt.Errorf("this channel does not contain the provided user Id")
+			return
+		}
+		defer videoChannel.HandleLeavingMember(userId)
+		if len(videoChannel.CurrentMembersId) <= 1 {
+			videoChannel.CurrentMembersId = make([]string, 0)
+		} else {
+			videoChannel.CurrentMembersId = append(videoChannel.CurrentMembersId[:index], videoChannel.CurrentMembersId[index+1:]...)
+		}
+		delete(videoChannel.CurrentMembers, userId)
+		signalMembers := func(members []string) {
+			for _, u := range members {
+				done, e := zvch.sendDataChannelMessage(USER_LEFT_VIDEO_CHANNEL, "node", u, map[string]interface{}{
+					"userId":    userId,
+					"channelId": channelId,
+				})
+				select {
+				case <-done:
+				case err := <-e:
+					logger.Println(err)
+				}
+			}
+		}
+		signalMembers(zvch.SquadMembersId)
+		return
+	})
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) handleDataChannel(ctx context.Context, dc *DataChannel) (catched bool) {
+	var label string
+	_ = atomicallyExecute(dc.l, func() (err error) {
+		label = dc.DataChannel.Label()
+		return
+	})
+	if strings.Contains(label, "video_channel_data") {
+		command := strings.Split(label, "|")
+		catched = true
+		_ = atomicallyExecute(zvch.VideoChanDataChannelsFlag, func() (err error) {
+			zvch.VideoChanDataChannels[command[1]] = dc
+			return
+		})
+		dc.DataChannel.OnOpen(func() {
+			fmt.Println("datachann in squad video chann fking created")
+			bs, err := json.Marshal(map[string]any{
+				"type": "init_video_channel",
+				"from": NodeID,
+				"to":   command[1],
+				"payload": map[string]any{
+					"videoChannel": zvch.VideoChannel,
+				},
+			})
+			if err != nil {
+				fmt.Println(err)
+			}
+			_ = dc.DataChannel.SendText(string(bs))
+		})
+		dc.DataChannel.OnClose(func() {
+			fmt.Println("closing gratefully video channel dc...")
+			_ = atomicallyExecute(zvch.VideoChanDataChannelsFlag, func() (err error) {
+				delete(zvch.VideoChanDataChannels, command[1])
+				fmt.Println("dc closed gracefully...")
+				return
+			})
+		})
+		dc.DataChannel.OnError(func(err error) {
+			fmt.Println("error in video channel dc...")
+			_ = atomicallyExecute(zvch.VideoChanDataChannelsFlag, func() (err error) {
+				delete(zvch.VideoChanDataChannels, command[1])
+				fmt.Println("dc closed on error...")
+				return
+			})
+		})
+	}
+	return
+}
+
+func (zvch *SquadVideoChannelsHandler) handleSquadRequest(ctx context.Context, req *SquadRequest) (err error) {
+	switch req.ReqType {
+	case LEAVE_ZONE:
+		logger.Println("*-----------------handling leaving squad---------------*")
+		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
+			return
+		}
+		vc := zvch.VideoChannel
+		var contain bool
+		var id string
+		for _, member := range vc.CurrentMembersId {
+			if member == req.Payload["userId"].(string) {
+				id = member
+				contain = true
+				logger.Printf("*------------------id is %s--------------*\n", id)
+				break
+			}
+		}
+		if contain {
+			err = zvch.LeaveVideoChannel(vc.ID, id)
+			break
+		}
+
+	case string(REMOVED_SQUAD_AUTHORIZED_MEMBER):
+		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
+			return
+		}
+		var index int
+		var found bool
+		for i, m := range zvch.SquadMembersId {
+			if m == req.Payload["userId"].(string) {
+				index = i
+				found = true
+				break
+			}
+		}
+		if !found {
+			err = fmt.Errorf("no such member in squad")
+			return
+		}
+		zvch.SquadMembersId = append(zvch.SquadMembersId[:index], zvch.SquadMembersId[index+1:]...)
+	case string(NEW_AUTHORIZED_SQUAD_MEMBER):
+		if err = VerifyFieldsString(req.Payload, "userId"); err != nil {
+			return
+		}
+		var contain bool
+		for _, m := range zvch.SquadMembersId {
+			if m == req.Payload["userId"].(string) {
+				contain = true
+				break
+			}
+		}
+		if !contain {
+			zvch.SquadMembersId = append(zvch.SquadMembersId, req.Payload["userId"].(string))
+		}
+	case JOIN_VIDEO_CHANNEL:
+		fmt.Println("wuwuuwuwwuuwuw i got this")
+		fmt.Println(req.Payload)
+		if err = VerifyFieldsString(req.Payload, "channelId", "userId", "sdp"); err != nil {
+			return
+		}
+		err = zvch.JoinVideoChannel(req.Payload["channelId"].(string), req.Payload["userId"].(string), req.Payload["sdp"].(string))
+	case LEAVE_VIDEO_CHANNEL:
+		if err = VerifyFieldsString(req.Payload, "channelId", "userId"); err != nil {
+			return
+		}
+		err = zvch.LeaveVideoChannel(req.Payload["channelId"].(string), req.Payload["userId"].(string))
+	case string(VIDEO_CHANNEL_WEBRTC_COUNTER_OFFER):
+		logger.Println("handling video channel counter offer")
+		if err = VerifyFieldsString(req.Payload, "channelId", "userId"); err != nil {
+			return
+		}
+		err = atomicallyExecute(zvch.VideoChannelsFlag, func() (err error) {
+			err = zvch.VideoChannel.HandleCounterOffer(ctx, req.Payload["userId"].(string), zvch.sendDataChannelMessage)
+			return
+		})
+	case string(VIDEO_CHANNEL_WEBRTC_RENNEGOTIATION_OFFER):
+		if err = VerifyFieldsString(req.Payload, "channelId", "userId", "sdp"); err != nil {
+			return
+		}
+		err = atomicallyExecute(zvch.VideoChannelsFlag, func() (err error) {
+			err = zvch.VideoChannel.HandleRennegotiationOffer(req.Payload["userId"].(string), req.Payload["sdp"].(string), zvch.sendDataChannelMessage)
+			return
+		})
+	case string(VIDEO_CHANNEL_WEBRTC_RENNEGOTIATION_ANSWER):
+		if err = VerifyFieldsString(req.Payload, "channelId", "userId", "sdp"); err != nil {
+			return
+		}
+		err = atomicallyExecute(zvch.VideoChannelsFlag, func() (err error) {
+			err = zvch.VideoChannel.HandleRennegotiationAnswer(req.Payload["userId"].(string), req.Payload["sdp"].(string))
+			return
+		})
+	case string(VIDEO_CHANNEL_WEBRTC_CANDIDATE):
+		logger.Println("handling video channel webrtc candidate")
+		logger.Println(req.Payload)
+		if err = VerifyFieldsString(req.Payload, FROM, "candidate", "sdpMLineIndex", "sdpMid", "channelId", "userId"); err != nil {
+			return
+		}
+		logger.Println(req.Payload)
+		i, convErr := strconv.Atoi(req.Payload["sdpMLineIndex"].(string))
+		if convErr != nil {
+			return convErr
+		}
+		SDPMLineIndex := uint16(i)
+		sdpMid := req.Payload["sdpMid"].(string)
+		logger.Println(sdpMid, SDPMLineIndex)
+		err = atomicallyExecute(zvch.VideoChannelsFlag, func() (err error) {
+			fmt.Println("uwuwuw adding candidate",req.Payload["candidate"].(string))
+			err = zvch.VideoChannel.AddCandidate(&webrtc.ICECandidateInit{
+				Candidate:     req.Payload["candidate"].(string),
+				SDPMid:        &sdpMid,
+				SDPMLineIndex: &SDPMLineIndex,
+			}, req.Payload["userId"].(string))
+			return
+		})
+	default:
+		logger.Println("video channel handler still in process of implementation")
+	}
+	return
+}

utitlity.go

@@ -2,9 +2,63 @@ package localserver
 
 import (
 	"fmt"
+	"sync"
 	"sync/atomic"
+
+	"github.com/pion/webrtc/v3"
 )
 
+const (
+	NAME      = "name"
+	ID        = "ID"
+	SDP       = "sdp"
+	CANDIDATE = "webrtc_candidate"
+	SQUAD_ID  = "squadId"
+	FROM      = "from"
+	TO        = "to"
+
+	STOP_CALL                  = "stop_call"
+	LIST_HOSTED_SQUADS_BY_HOST = "list_hosted_squads_by_host"
+	LEAVE_SQUAD
+
+	bufferedAmountLowThreshold uint64 = 512 * 1024
+)
+
+type OnICECandidateFunc func(string, *webrtc.ICECandidate) error
+
+type RTCPeerConnection struct {
+	*webrtc.PeerConnection
+	id              string
+	makingOffer     bool
+	negotiate       func(string, string)
+	makingOfferLock *sync.Mutex
+}
+
+type DataChannel struct {
+	DataChannel                       *webrtc.DataChannel
+	bufferedAmountLowThresholdReached <-chan struct{}
+	l                                 *uint32
+}
+
+type PeerSender struct {
+	ID          string
+	Transceiver *webrtc.RTPTransceiver
+	Sender      *webrtc.RTPSender
+}
+
+type CallEvent struct {
+	EventId string                 `json:"eventId"`
+	From    string                 `json:"from"`
+	Data    []byte                 `json:"data"`
+	Payload map[string]interface{} `json:"payload"`
+}
+
+type RemoteTrack struct {
+	ID    string
+	Track *webrtc.TrackLocalStaticRTP
+	rdv   *int32
+}
+
 func validateRequest(req map[string]string, entries ...string) (err error) {
 	for _, entry := range entries {
 		if _, ok := req[entry]; !ok {

webrtcCallChatManager.go

@@ -1,136 +1,136 @@
 package localserver
 
-import (
+// import (
-	"encoding/json"
+// 	"encoding/json"
-	"fmt"
+// 	"fmt"
-	"sync/atomic"
+// 	"sync/atomic"
-)
+// )
 
-const (
+// const (
-	CHAT_MESSAGE_BROADCAST = "chat_message_broadcast"
+// 	CHAT_MESSAGE_BROADCAST = "chat_message_broadcast"
-	CHAT_MESSAGE_PRIVATE   = "chat_message_private"
+// 	CHAT_MESSAGE_PRIVATE   = "chat_message_private"
-)
+// )
 
-type WebrtcCallChatManager struct{}
+// type WebrtcCallChatManager struct{}
 
-func NewWebrtcCallChatManager() *WebrtcCallChatManager {
+// func NewWebrtcCallChatManager() *WebrtcCallChatManager {
-	return new(WebrtcCallChatManager)
+// 	return new(WebrtcCallChatManager)
-}
+// }
 
-func (w *WebrtcCallChatManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallChatManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
+// 	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
+// 	go func() {
-		logger.Println("got an event in call chat manager", from, eventId, payload)
+// 		logger.Println("got an event in call chat manager", from, eventId, payload)
-		switch eventId {
+// 		switch eventId {
-		case CHAT_MESSAGE_BROADCAST:
+// 		case CHAT_MESSAGE_BROADCAST:
-			if e := validateEvent(payload, "message"); e != nil {
+// 			if e := validateEvent(payload, "message"); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-			if e := w.sendBrodcastChatMessage(from, payload["message"].(string), squadId, manager); e != nil {
+// 			if e := w.sendBrodcastChatMessage(from, payload["message"].(string), squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		case CHAT_MESSAGE_PRIVATE:
+// 		case CHAT_MESSAGE_PRIVATE:
-			if e := validateEvent(payload, "message", "dst"); e != nil {
+// 			if e := validateEvent(payload, "message", "dst"); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-			if e := w.sendPrivateChatMessage(from, payload["message"].(string), squadId, manager, payload["message"].([]string)...); e != nil {
+// 			if e := w.sendPrivateChatMessage(from, payload["message"].(string), squadId, manager, payload["message"].([]string)...); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		}
+// 		}
-		done <- struct{}{}
+// 		done <- struct{}{}
-	}()
+// 	}()
-	select {
+// 	select {
-	case <-done:
+// 	case <-done:
-		return nil
+// 		return nil
-	case err = <-errCh:
+// 	case err = <-errCh:
-		return
+// 		return
-	}
+// 	}
-}
+// }
 
-func (w WebrtcCallChatManager) sendBrodcastChatMessage(from string, message string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w WebrtcCallChatManager) sendBrodcastChatMessage(from string, message string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		if _, ok := manager.DataChannels[member]; ok && member != from {
+// 		if _, ok := manager.DataChannels[member]; ok && member != from {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type": "send_chat_message",
+// 				"type": "send_chat_message",
-				"from": from,
+// 				"from": from,
-				"payload": map[string]string{
+// 				"payload": map[string]string{
-					"message": message,
+// 					"message": message,
-				},
+// 				},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				continue
+// 				continue
-			}
+// 			}
-		lock:
+// 		lock:
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-						logger.Println(sendErr)
+// 						logger.Println(sendErr)
-					}
+// 					}
-					break lock
+// 					break lock
-				} else {
+// 				} else {
-					continue
+// 					continue
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w WebrtcCallChatManager) sendPrivateChatMessage(from string, message string, squadId string, manager *WebRTCCallManager, dst ...string) (err error) {
+// func (w WebrtcCallChatManager) sendPrivateChatMessage(from string, message string, squadId string, manager *WebRTCCallManager, dst ...string) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		for _, id := range dst {
+// 		for _, id := range dst {
-			if id == member {
+// 			if id == member {
-				if _, ok := manager.DataChannels[member]; ok && member != from {
+// 				if _, ok := manager.DataChannels[member]; ok && member != from {
-					bs, marshalErr := json.Marshal(map[string]interface{}{
+// 					bs, marshalErr := json.Marshal(map[string]interface{}{
-						"type": "",
+// 						"type": "",
-						"from": from,
+// 						"from": from,
-						"payload": map[string]string{
+// 						"payload": map[string]string{
-							"message": message,
+// 							"message": message,
-						},
+// 						},
-					})
+// 					})
-					if marshalErr != nil {
+// 					if marshalErr != nil {
-						logger.Println(err)
+// 						logger.Println(err)
-						continue
+// 						continue
-					}
+// 					}
-				lock:
+// 				lock:
-					for {
+// 					for {
-						if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 						if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-							defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 							defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-							if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 							if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-								logger.Println(sendErr)
+// 								logger.Println(sendErr)
-							}
+// 							}
-							break lock
+// 							break lock
-						} else {
+// 						} else {
-							continue
+// 							continue
-						}
+// 						}
-					}
+// 					}
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func validateEvent(event map[string]interface{}, fields ...string) (err error) {
+// func validateEvent(event map[string]interface{}, fields ...string) (err error) {
-	for _, field := range fields {
+// 	for _, field := range fields {
-		if _, ok := event[field]; !ok {
+// 		if _, ok := event[field]; !ok {
-			err = fmt.Errorf("no field %s in req payload", field)
+// 			err = fmt.Errorf("no field %s in req payload", field)
-			return
+// 			return
-		}
+// 		}
-	}
+// 	}
-	return
+// 	return
-}
+// }

webrtcCallEventManager.go

@@ -1,5 +1,5 @@
 package localserver
 
-type WebrtcCallEventManager interface {
+// type WebrtcCallEventManager interface {
-	HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error)
+// 	HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error)
-}
+// }

webrtcCallFileManager.go

@@ -1,311 +1,311 @@
 package localserver
 
-import (
+// import (
-	"bufio"
+// 	"bufio"
-	"encoding/json"
+// 	"encoding/json"
-	"fmt"
+// 	"fmt"
-	"io"
+// 	"io"
-	"log"
+// 	"log"
-	"os"
+// 	"os"
-	"path/filepath"
+// 	"path/filepath"
-	"sync/atomic"
+// 	"sync/atomic"
 
-	"github.com/pion/webrtc/v3"
+// 	"github.com/pion/webrtc/v3"
-)
+// )
 
-const (
+// const (
-	UPLOAD_INIT                              = "upload_init"
+// 	UPLOAD_INIT                              = "upload_init"
-	UPLOAD                                   = "upload"
+// 	UPLOAD                                   = "upload"
-	UPLOAD_DONE                              = "upload_done"
+// 	UPLOAD_DONE                              = "upload_done"
-	DOWNLOAD_INIT                            = "download_init"
+// 	DOWNLOAD_INIT                            = "download_init"
-	DOWNLOAD                                 = "download"
+// 	DOWNLOAD                                 = "download"
-	DOWNLOAD_DONE                            = "download_done"
+// 	DOWNLOAD_DONE                            = "download_done"
-	HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_INIT = "hosted_squad_download_file_response_init"
+// 	HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_INIT = "hosted_squad_download_file_response_init"
-	HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE      = "hosted_squad_download_file_response"
+// 	HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE      = "hosted_squad_download_file_response"
-	HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_END  = "hosted_squad_download_file_response_end"
+// 	HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_END  = "hosted_squad_download_file_response_end"
-)
+// )
 
-const (
+// const (
-	bufferedAmountLowThreshold uint64 = 512 * 1024
+// 	bufferedAmountLowThreshold uint64 = 512 * 1024
-	//maxBufferedAmount          uint64 = 1024 * 1024
+// 	//maxBufferedAmount          uint64 = 1024 * 1024
-)
+// )
 
-type WebrtcCallFileManager struct {
+// type WebrtcCallFileManager struct {
-	files map[string]*os.File
+// 	files map[string]*os.File
-	l     *uint32
+// 	l     *uint32
-}
+// }
 
-func NewWebrtcCallFileManager() *WebrtcCallFileManager {
+// func NewWebrtcCallFileManager() *WebrtcCallFileManager {
-	l := uint32(0)
+// 	l := uint32(0)
-	return &WebrtcCallFileManager{
+// 	return &WebrtcCallFileManager{
-		files: make(map[string]*os.File),
+// 		files: make(map[string]*os.File),
-		l:     &l,
+// 		l:     &l,
-	}
+// 	}
-}
+// }
 
-func (w *WebrtcCallFileManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallFileManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
+// 	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
+// 	go func() {
-		logger.Println("got an event in call file manager", from, eventId, payload)
+// 		logger.Println("got an event in call file manager", from, eventId, payload)
-		switch eventId {
+// 		switch eventId {
-		case UPLOAD_INIT:
+// 		case UPLOAD_INIT:
-			if _, ok := payload["filename"]; !ok {
+// 			if _, ok := payload["filename"]; !ok {
-				errCh <- fmt.Errorf("no field filename in payload")
+// 				errCh <- fmt.Errorf("no field filename in payload")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["filename"].(string); !ok {
+// 			if _, ok := payload["filename"].(string); !ok {
-				errCh <- fmt.Errorf("field filename in payload is not a string")
+// 				errCh <- fmt.Errorf("field filename in payload is not a string")
-				return
+// 				return
-			}
+// 			}
-			if err = w.initUpload(squadId, from, payload["filename"].(string)); err != nil {
+// 			if err = w.initUpload(squadId, from, payload["filename"].(string)); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case UPLOAD:
+// 		case UPLOAD:
-			if _, ok := payload["filename"]; !ok {
+// 			if _, ok := payload["filename"]; !ok {
-				errCh <- fmt.Errorf("no field filename in payload")
+// 				errCh <- fmt.Errorf("no field filename in payload")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["filename"].(string); !ok {
+// 			if _, ok := payload["filename"].(string); !ok {
-				errCh <- fmt.Errorf("field filename in payload is not a string")
+// 				errCh <- fmt.Errorf("field filename in payload is not a string")
-				return
+// 				return
-			}
+// 			}
-			if err = w.upload(squadId, from, payload["filename"].(string), data); err != nil {
+// 			if err = w.upload(squadId, from, payload["filename"].(string), data); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case UPLOAD_DONE:
+// 		case UPLOAD_DONE:
-			if _, ok := payload["filename"]; !ok {
+// 			if _, ok := payload["filename"]; !ok {
-				errCh <- fmt.Errorf("no field filename in payload")
+// 				errCh <- fmt.Errorf("no field filename in payload")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["filename"].(string); !ok {
+// 			if _, ok := payload["filename"].(string); !ok {
-				errCh <- fmt.Errorf("field filename in payload is not a string")
+// 				errCh <- fmt.Errorf("field filename in payload is not a string")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["targets"]; !ok {
+// 			if _, ok := payload["targets"]; !ok {
-				errCh <- fmt.Errorf("no field targets in payload")
+// 				errCh <- fmt.Errorf("no field targets in payload")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["targets"].([]interface{}); !ok {
+// 			if _, ok := payload["targets"].([]interface{}); !ok {
-				errCh <- fmt.Errorf("field targets in payload is not a string")
+// 				errCh <- fmt.Errorf("field targets in payload is not a string")
-				return
+// 				return
-			}
+// 			}
-			channels := []*DataChannel{}
+// 			channels := []*DataChannel{}
-			manager.DataChannelMapMux.RLock()
+// 			manager.DataChannelMapMux.RLock()
-			for _, target := range payload["targets"].([]interface{}) {
+// 			for _, target := range payload["targets"].([]interface{}) {
-				if _, ok := manager.DataChannels[target.(string)]; !ok {
+// 				if _, ok := manager.DataChannels[target.(string)]; !ok {
-					manager.DataChannelMapMux.RUnlock()
+// 					manager.DataChannelMapMux.RUnlock()
-					errCh <- fmt.Errorf("no corresponding datachannel : %s", target.(string))
+// 					errCh <- fmt.Errorf("no corresponding datachannel : %s", target.(string))
-					return
+// 					return
-				}
+// 				}
-				channel := manager.DataChannels[target.(string)]
+// 				channel := manager.DataChannels[target.(string)]
-				for {
+// 				for {
-					if atomic.CompareAndSwapUint32(channel.l, 0, 1) {
+// 					if atomic.CompareAndSwapUint32(channel.l, 0, 1) {
-						defer atomic.SwapUint32(channel.l, 0)
+// 						defer atomic.SwapUint32(channel.l, 0)
-						break
+// 						break
-					}
+// 					}
-				}
+// 				}
-				channels = append(channels, channel)
+// 				channels = append(channels, channel)
-			}
+// 			}
-			manager.DataChannelMapMux.RUnlock()
+// 			manager.DataChannelMapMux.RUnlock()
-			if err = w.uploadDone(squadId, from, payload["filename"].(string), channels); err != nil {
+// 			if err = w.uploadDone(squadId, from, payload["filename"].(string), channels); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case DOWNLOAD:
+// 		case DOWNLOAD:
-			if _, ok := payload["filename"]; !ok {
+// 			if _, ok := payload["filename"]; !ok {
-				errCh <- fmt.Errorf("no field filename in payload")
+// 				errCh <- fmt.Errorf("no field filename in payload")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["filename"].(string); !ok {
+// 			if _, ok := payload["filename"].(string); !ok {
-				errCh <- fmt.Errorf("field filename in payload is not a string")
+// 				errCh <- fmt.Errorf("field filename in payload is not a string")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["peerId"]; !ok {
+// 			if _, ok := payload["peerId"]; !ok {
-				errCh <- fmt.Errorf("no field peerId in payload")
+// 				errCh <- fmt.Errorf("no field peerId in payload")
-				return
+// 				return
-			}
+// 			}
-			if _, ok := payload["peerId"].(string); !ok {
+// 			if _, ok := payload["peerId"].(string); !ok {
-				errCh <- fmt.Errorf("field peerId in payload is not a string")
+// 				errCh <- fmt.Errorf("field peerId in payload is not a string")
-				return
+// 				return
-			}
+// 			}
-			manager.DataChannelMapMux.RLock()
+// 			manager.DataChannelMapMux.RLock()
-			if _, ok := manager.DataChannels[payload["peerId"].(string)]; !ok {
+// 			if _, ok := manager.DataChannels[payload["peerId"].(string)]; !ok {
-				manager.DataChannelMapMux.RUnlock()
+// 				manager.DataChannelMapMux.RUnlock()
-				errCh <- fmt.Errorf("no corresponding datachannel")
+// 				errCh <- fmt.Errorf("no corresponding datachannel")
-				return
+// 				return
-			}
+// 			}
-			channel := manager.DataChannels[payload["peerId"].(string)]
+// 			channel := manager.DataChannels[payload["peerId"].(string)]
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(channel.l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(channel.l, 0, 1) {
-					logger.Println("atomic lock unlocked")
+// 					logger.Println("atomic lock unlocked")
-					defer atomic.SwapUint32(channel.l, 0)
+// 					defer atomic.SwapUint32(channel.l, 0)
-					break
+// 					break
-				}
+// 				}
-			}
+// 			}
-			manager.DataChannelMapMux.RUnlock()
+// 			manager.DataChannelMapMux.RUnlock()
-			if err = w.download(squadId, from, payload["filename"].(string), channel.DataChannel); err != nil {
+// 			if err = w.download(squadId, from, payload["filename"].(string), channel.DataChannel); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		}
+// 		}
-		done <- struct{}{}
+// 		done <- struct{}{}
-	}()
+// 	}()
-	select {
+// 	select {
-	case <-done:
+// 	case <-done:
-		return nil
+// 		return nil
-	case err = <-errCh:
+// 	case err = <-errCh:
-		return
+// 		return
-	}
+// 	}
-}
+// }
 
-func (w *WebrtcCallFileManager) initUpload(squadId string, from string, fileName string) (err error) {
+// func (w *WebrtcCallFileManager) initUpload(squadId string, from string, fileName string) (err error) {
-	for {
+// 	for {
-		if atomic.CompareAndSwapUint32(w.l, 0, 1) {
+// 		if atomic.CompareAndSwapUint32(w.l, 0, 1) {
-			defer atomic.SwapUint32(w.l, 0)
+// 			defer atomic.SwapUint32(w.l, 0)
-			if _, dirErr := os.Stat(filepath.Join(dataPath, dataPath, "data", "squads", squadId)); os.IsNotExist(dirErr) {
+// 			if _, dirErr := os.Stat(filepath.Join(dataPath, dataPath, "data", "squads", squadId)); os.IsNotExist(dirErr) {
-				if err = os.MkdirAll(filepath.Join(dataPath, dataPath, "data", "squads", squadId), 0700); err != nil {
+// 				if err = os.MkdirAll(filepath.Join(dataPath, dataPath, "data", "squads", squadId), 0700); err != nil {
-					return
+// 					return
-				}
+// 				}
-			}
+// 			}
-			f, fErr := os.Create(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName))
+// 			f, fErr := os.Create(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName))
-			if err != nil {
+// 			if err != nil {
-				return fErr
+// 				return fErr
-			}
+// 			}
-			f.Close()
+// 			f.Close()
-			f, fErr = os.OpenFile(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName), os.O_APPEND|os.O_WRONLY, 0644)
+// 			f, fErr = os.OpenFile(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName), os.O_APPEND|os.O_WRONLY, 0644)
-			if err != nil {
+// 			if err != nil {
-				return fErr
+// 				return fErr
-			}
+// 			}
-			w.files[fileName] = f
+// 			w.files[fileName] = f
-			break
+// 			break
-		} else {
+// 		} else {
-			continue
+// 			continue
-		}
+// 		}
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallFileManager) upload(squadId string, from string, fileName string, data []byte) (err error) {
+// func (w *WebrtcCallFileManager) upload(squadId string, from string, fileName string, data []byte) (err error) {
-	for {
+// 	for {
-		if atomic.CompareAndSwapUint32(w.l, 0, 1) {
+// 		if atomic.CompareAndSwapUint32(w.l, 0, 1) {
-			defer atomic.SwapUint32(w.l, 0)
+// 			defer atomic.SwapUint32(w.l, 0)
-			if _, ok := w.files[fileName]; !ok {
+// 			if _, ok := w.files[fileName]; !ok {
-				err = fmt.Errorf("no open file with name %s", fileName)
+// 				err = fmt.Errorf("no open file with name %s", fileName)
-				return
+// 				return
-			}
+// 			}
-			_, err = w.files[fileName].Write(data)
+// 			_, err = w.files[fileName].Write(data)
-			break
+// 			break
-		} else {
+// 		} else {
-			continue
+// 			continue
-		}
+// 		}
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallFileManager) uploadDone(squadId string, from string, fileName string, channels []*DataChannel) (err error) {
+// func (w *WebrtcCallFileManager) uploadDone(squadId string, from string, fileName string, channels []*DataChannel) (err error) {
-	for {
+// 	for {
-		if atomic.CompareAndSwapUint32(w.l, 0, 1) {
+// 		if atomic.CompareAndSwapUint32(w.l, 0, 1) {
-			defer atomic.SwapUint32(w.l, 0)
+// 			defer atomic.SwapUint32(w.l, 0)
-			if _, ok := w.files[fileName]; !ok {
+// 			if _, ok := w.files[fileName]; !ok {
-				err = fmt.Errorf("no open file with name %s", fileName)
+// 				err = fmt.Errorf("no open file with name %s", fileName)
-				return
+// 				return
-			}
+// 			}
-			err = w.files[fileName].Close()
+// 			err = w.files[fileName].Close()
-			delete(w.files, fileName)
+// 			delete(w.files, fileName)
-			bsInit, jsonErr := json.Marshal(map[string]interface{}{
+// 			bsInit, jsonErr := json.Marshal(map[string]interface{}{
-				"type": UPLOAD_DONE,
+// 				"type": UPLOAD_DONE,
-				"from": "server",
+// 				"from": "server",
-				"payload": map[string]string{
+// 				"payload": map[string]string{
-					"path": fileName,
+// 					"path": fileName,
-				},
+// 				},
-			})
+// 			})
-			if jsonErr != nil {
+// 			if jsonErr != nil {
-				return jsonErr
+// 				return jsonErr
-			}
+// 			}
-			for _, channel := range channels {
+// 			for _, channel := range channels {
-				if err = channel.DataChannel.SendText(string(bsInit)); err != nil {
+// 				if err = channel.DataChannel.SendText(string(bsInit)); err != nil {
-					return
+// 					return
-				}
+// 				}
-			}
+// 			}
-			break
+// 			break
-		} else {
+// 		} else {
-			continue
+// 			continue
-		}
+// 		}
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallFileManager) download(squadId string, dst string, fileName string, channel *webrtc.DataChannel) (err error) {
+// func (w *WebrtcCallFileManager) download(squadId string, dst string, fileName string, channel *webrtc.DataChannel) (err error) {
-	logger.Println("got called")
+// 	logger.Println("got called")
-	if _, dirErr := os.Stat(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName)); os.IsNotExist(dirErr) {
+// 	if _, dirErr := os.Stat(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName)); os.IsNotExist(dirErr) {
-		logger.Println("file does not exist :", filepath.Join(dataPath, "data", "squads", squadId, fileName))
+// 		logger.Println("file does not exist :", filepath.Join(dataPath, "data", "squads", squadId, fileName))
-		return
+// 		return
-	}
+// 	}
-	f, err := os.Open(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName))
+// 	f, err := os.Open(filepath.Join(dataPath, dataPath, "data", "squads", squadId, fileName))
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	defer f.Close()
+// 	defer f.Close()
-	bsInit, err := json.Marshal(map[string]interface{}{
+// 	bsInit, err := json.Marshal(map[string]interface{}{
-		"type": HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_INIT,
+// 		"type": HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_INIT,
-		"from": "server",
+// 		"from": "server",
-		"payload": map[string]string{
+// 		"payload": map[string]string{
-			"path": fileName,
+// 			"path": fileName,
-		},
+// 		},
-	})
+// 	})
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	if err = channel.SendText(string(bsInit)); err != nil {
+// 	if err = channel.SendText(string(bsInit)); err != nil {
-		return
+// 		return
-	}
+// 	}
-	r := bufio.NewReader(f)
+// 	r := bufio.NewReader(f)
-	buf := make([]byte, 0, 30000)
+// 	buf := make([]byte, 0, 30000)
-	logger.Println("start reading")
+// 	logger.Println("start reading")
-	for {
+// 	for {
-		n, readErr := r.Read(buf[:cap(buf)])
+// 		n, readErr := r.Read(buf[:cap(buf)])
-		buf = buf[:n]
+// 		buf = buf[:n]
-		if n == 0 {
+// 		if n == 0 {
-			if err == nil {
+// 			if err == nil {
-				logger.Println("n is 0 weird")
+// 				logger.Println("n is 0 weird")
-				break
+// 				break
-			}
+// 			}
-			if err == io.EOF {
+// 			if err == io.EOF {
-				break
+// 				break
-			}
+// 			}
-			log.Fatal(readErr)
+// 			log.Fatal(readErr)
-		}
+// 		}
-		bs, jsonErr := json.Marshal(map[string]interface{}{
+// 		bs, jsonErr := json.Marshal(map[string]interface{}{
-			"type": HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE,
+// 			"type": HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE,
-			"from": "server",
+// 			"from": "server",
-			"payload": map[string]interface{}{
+// 			"payload": map[string]interface{}{
-				"path":    fileName,
+// 				"path":    fileName,
-				"content": buf,
+// 				"content": buf,
-			},
+// 			},
-		})
+// 		})
-		if jsonErr != nil {
+// 		if jsonErr != nil {
-			return jsonErr
+// 			return jsonErr
-		}
+// 		}
-		if err = channel.SendText(string(bs)); err != nil {
+// 		if err = channel.SendText(string(bs)); err != nil {
-			return
+// 			return
-		}
+// 		}
-	}
+// 	}
-	logger.Println("stop reading")
+// 	logger.Println("stop reading")
-	bs, err := json.Marshal(map[string]interface{}{
+// 	bs, err := json.Marshal(map[string]interface{}{
-		"type": HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_END,
+// 		"type": HOSTED_SQUAD_DOWNLOAD_FILE_RESPONSE_END,
-		"from": "server",
+// 		"from": "server",
-		"payload": map[string]string{
+// 		"payload": map[string]string{
-			"path": fileName,
+// 			"path": fileName,
-		},
+// 		},
-	})
+// 	})
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	if err = channel.SendText(string(bs)); err != nil {
+// 	if err = channel.SendText(string(bs)); err != nil {
-		return
+// 		return
-	}
+// 	}
-	logger.Println("done")
+// 	logger.Println("done")
-	return
+// 	return
-}
+// }

webrtcCallSoundManager.go

@@ -1,234 +1,234 @@
 package localserver
 
-import (
+// import (
-	"encoding/json"
+// 	"encoding/json"
-	"fmt"
+// 	"fmt"
-	"sync/atomic"
+// 	"sync/atomic"
 
-	"github.com/pion/webrtc/v3"
+// 	"github.com/pion/webrtc/v3"
-)
+// )
 
-const (
+// const (
-	SPEAKING      = "speaking"
+// 	SPEAKING      = "speaking"
-	STOP_SPEAKING = "stop_speaking"
+// 	STOP_SPEAKING = "stop_speaking"
-	MUTE          = "mute"
+// 	MUTE          = "mute"
-	UNMUTE        = "unmute"
+// 	UNMUTE        = "unmute"
-)
+// )
 
-type WebrtcCallSoundManager struct{}
+// type WebrtcCallSoundManager struct{}
 
-func NewWebrtcCallSoundManager() *WebrtcCallSoundManager {
+// func NewWebrtcCallSoundManager() *WebrtcCallSoundManager {
-	return new(WebrtcCallSoundManager)
+// 	return new(WebrtcCallSoundManager)
-}
+// }
 
-func (w *WebrtcCallSoundManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallSoundManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
+// 	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
+// 	go func() {
-		logger.Println("got an event in call sound manager", from, eventId, payload)
+// 		logger.Println("got an event in call sound manager", from, eventId, payload)
-		switch eventId {
+// 		switch eventId {
-		case UNMUTE:
+// 		case UNMUTE:
-			if e := w.unmute(from, squadId, manager); e != nil {
+// 			if e := w.unmute(from, squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		case MUTE:
+// 		case MUTE:
-			if e := w.mute(from, squadId, manager); e != nil {
+// 			if e := w.mute(from, squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		case SPEAKING:
+// 		case SPEAKING:
-			if e := w.sendSpeakingEvent(from, squadId, manager); e != nil {
+// 			if e := w.sendSpeakingEvent(from, squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		case STOP_SPEAKING:
+// 		case STOP_SPEAKING:
-			if e := w.sendStopSpeakingEvent(from, squadId, manager); e != nil {
+// 			if e := w.sendStopSpeakingEvent(from, squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		}
+// 		}
-		done <- struct{}{}
+// 		done <- struct{}{}
-	}()
+// 	}()
-	select {
+// 	select {
-	case <-done:
+// 	case <-done:
-		return nil
+// 		return nil
-	case err = <-errCh:
+// 	case err = <-errCh:
-		return
+// 		return
-	}
+// 	}
-}
+// }
 
-func (w *WebrtcCallSoundManager) unmute(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallSoundManager) unmute(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	logger.Println("sending unnmute event", peerId)
+// 	logger.Println("sending unnmute event", peerId)
-	manager.RemoteTracksMux.RLock()
+// 	manager.RemoteTracksMux.RLock()
-	for _, v := range manager.RemoteTracks[peerId] {
+// 	for _, v := range manager.RemoteTracks[peerId] {
-		if v.Track.Kind() == webrtc.RTPCodecTypeAudio {
+// 		if v.Track.Kind() == webrtc.RTPCodecTypeAudio {
-			atomic.SwapInt32(v.rdv, 0)
+// 			atomic.SwapInt32(v.rdv, 0)
-		}
+// 		}
-	}
+// 	}
-	manager.RemoteTracksMux.RUnlock()
+// 	manager.RemoteTracksMux.RUnlock()
-	manager.SquadMapMux.Lock()
+// 	manager.SquadMapMux.Lock()
-	defer manager.SquadMapMux.Unlock()
+// 	defer manager.SquadMapMux.Unlock()
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		manager.DataChannelMapMux.Lock()
+// 		manager.DataChannelMapMux.Lock()
-		if _, ok := manager.DataChannels[member]; ok && member != peerId {
+// 		if _, ok := manager.DataChannels[member]; ok && member != peerId {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type":    UNMUTE,
+// 				"type":    UNMUTE,
-				"from":    peerId,
+// 				"from":    peerId,
-				"payload": map[string]interface{}{},
+// 				"payload": map[string]interface{}{},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				manager.DataChannelMapMux.Unlock()
+// 				manager.DataChannelMapMux.Unlock()
-				continue
+// 				continue
-			}
+// 			}
-		lock:
+// 		lock:
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-						logger.Println(sendErr)
+// 						logger.Println(sendErr)
-					}
+// 					}
-					break lock
+// 					break lock
-				} else {
+// 				} else {
-					continue
+// 					continue
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-		manager.DataChannelMapMux.Unlock()
+// 		manager.DataChannelMapMux.Unlock()
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallSoundManager) mute(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallSoundManager) mute(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	logger.Println("sending mute event", peerId)
+// 	logger.Println("sending mute event", peerId)
-	manager.RemoteTracksMux.RLock()
+// 	manager.RemoteTracksMux.RLock()
-	for _, v := range manager.RemoteTracks[peerId] {
+// 	for _, v := range manager.RemoteTracks[peerId] {
-		if v.Track.Kind() == webrtc.RTPCodecTypeAudio {
+// 		if v.Track.Kind() == webrtc.RTPCodecTypeAudio {
-			atomic.SwapInt32(v.rdv, 1)
+// 			atomic.SwapInt32(v.rdv, 1)
-		}
+// 		}
-	}
+// 	}
-	manager.RemoteTracksMux.RUnlock()
+// 	manager.RemoteTracksMux.RUnlock()
-	manager.SquadMapMux.Lock()
+// 	manager.SquadMapMux.Lock()
-	defer manager.SquadMapMux.Unlock()
+// 	defer manager.SquadMapMux.Unlock()
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		manager.DataChannelMapMux.Lock()
+// 		manager.DataChannelMapMux.Lock()
-		if _, ok := manager.DataChannels[member]; ok && member != peerId {
+// 		if _, ok := manager.DataChannels[member]; ok && member != peerId {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type":    MUTE,
+// 				"type":    MUTE,
-				"from":    peerId,
+// 				"from":    peerId,
-				"payload": map[string]interface{}{},
+// 				"payload": map[string]interface{}{},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				manager.DataChannelMapMux.Unlock()
+// 				manager.DataChannelMapMux.Unlock()
-				continue
+// 				continue
-			}
+// 			}
-		lock:
+// 		lock:
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-						logger.Println(sendErr)
+// 						logger.Println(sendErr)
-					}
+// 					}
-					break lock
+// 					break lock
-				} else {
+// 				} else {
-					continue
+// 					continue
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-		manager.DataChannelMapMux.Unlock()
+// 		manager.DataChannelMapMux.Unlock()
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallSoundManager) sendSpeakingEvent(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallSoundManager) sendSpeakingEvent(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	logger.Println("sending speaking event", peerId)
+// 	logger.Println("sending speaking event", peerId)
-	manager.SquadMapMux.Lock()
+// 	manager.SquadMapMux.Lock()
-	defer manager.SquadMapMux.Unlock()
+// 	defer manager.SquadMapMux.Unlock()
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		manager.DataChannelMapMux.Lock()
+// 		manager.DataChannelMapMux.Lock()
-		if _, ok := manager.DataChannels[member]; ok && member != peerId {
+// 		if _, ok := manager.DataChannels[member]; ok && member != peerId {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type": SPEAKING,
+// 				"type": SPEAKING,
-				"from": peerId,
+// 				"from": peerId,
-				"payload": map[string]interface{}{
+// 				"payload": map[string]interface{}{
-					"userId":   peerId,
+// 					"userId":   peerId,
-					"speaking": true,
+// 					"speaking": true,
-				},
+// 				},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				manager.DataChannelMapMux.Unlock()
+// 				manager.DataChannelMapMux.Unlock()
-				continue
+// 				continue
-			}
+// 			}
-		lock:
+// 		lock:
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-						logger.Println(sendErr)
+// 						logger.Println(sendErr)
-					}
+// 					}
-					break lock
+// 					break lock
-				} else {
+// 				} else {
-					continue
+// 					continue
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-		manager.DataChannelMapMux.Unlock()
+// 		manager.DataChannelMapMux.Unlock()
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallSoundManager) sendStopSpeakingEvent(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallSoundManager) sendStopSpeakingEvent(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	logger.Println("sending stop speaking event", peerId)
+// 	logger.Println("sending stop speaking event", peerId)
-	manager.SquadMapMux.Lock()
+// 	manager.SquadMapMux.Lock()
-	defer manager.SquadMapMux.Unlock()
+// 	defer manager.SquadMapMux.Unlock()
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		manager.DataChannelMapMux.Lock()
+// 		manager.DataChannelMapMux.Lock()
-		if _, ok := manager.DataChannels[member]; ok && member != peerId {
+// 		if _, ok := manager.DataChannels[member]; ok && member != peerId {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type": STOP_SPEAKING,
+// 				"type": STOP_SPEAKING,
-				"from": peerId,
+// 				"from": peerId,
-				"payload": map[string]interface{}{
+// 				"payload": map[string]interface{}{
-					"userId":   peerId,
+// 					"userId":   peerId,
-					"speaking": false,
+// 					"speaking": false,
-				},
+// 				},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				manager.DataChannelMapMux.Unlock()
+// 				manager.DataChannelMapMux.Unlock()
-				continue
+// 				continue
-			}
+// 			}
-		lock:
+// 		lock:
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-						logger.Println(sendErr)
+// 						logger.Println(sendErr)
-					}
+// 					}
-					break lock
+// 					break lock
-				} else {
+// 				} else {
-					continue
+// 					continue
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-		manager.DataChannelMapMux.Unlock()
+// 		manager.DataChannelMapMux.Unlock()
-	}
+// 	}
-	return
+// 	return
-}
+// }

webrtcCallVideoManager.go

@@ -1,131 +1,131 @@
 package localserver
 
-import (
+// import (
-	"encoding/json"
+// 	"encoding/json"
-	"fmt"
+// 	"fmt"
-	"sync/atomic"
+// 	"sync/atomic"
 
-	"github.com/pion/webrtc/v3"
+// 	"github.com/pion/webrtc/v3"
-)
+// )
 
-const (
+// const (
-	VIDEO      = "video"
+// 	VIDEO      = "video"
-	STOP_VIDEO = "stop_video"
+// 	STOP_VIDEO = "stop_video"
-)
+// )
 
-type WebrtcCallVideoManager struct{}
+// type WebrtcCallVideoManager struct{}
 
-func NewWebrtcCallVideoManager() *WebrtcCallVideoManager {
+// func NewWebrtcCallVideoManager() *WebrtcCallVideoManager {
-	return new(WebrtcCallVideoManager)
+// 	return new(WebrtcCallVideoManager)
-}
+// }
 
-func (w *WebrtcCallVideoManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallVideoManager) HandleCallEvent(from string, squadId string, eventId string, payload map[string]interface{}, data []byte, manager *WebRTCCallManager) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
+// 	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
+// 	go func() {
-		logger.Println("got an event in call video manager", from, eventId, payload)
+// 		logger.Println("got an event in call video manager", from, eventId, payload)
-		switch eventId {
+// 		switch eventId {
-		case VIDEO:
+// 		case VIDEO:
-			if e := w.video(from, squadId, manager); e != nil {
+// 			if e := w.video(from, squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		case STOP_VIDEO:
+// 		case STOP_VIDEO:
-			if e := w.stopVideo(from, squadId, manager); e != nil {
+// 			if e := w.stopVideo(from, squadId, manager); e != nil {
-				errCh <- e
+// 				errCh <- e
-				return
+// 				return
-			}
+// 			}
-		}
+// 		}
-		done <- struct{}{}
+// 		done <- struct{}{}
-	}()
+// 	}()
-	select {
+// 	select {
-	case <-done:
+// 	case <-done:
-		return nil
+// 		return nil
-	case err = <-errCh:
+// 	case err = <-errCh:
-		return
+// 		return
-	}
+// 	}
-}
+// }
 
-func (w *WebrtcCallVideoManager) video(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallVideoManager) video(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	logger.Println("sending video event", peerId)
+// 	logger.Println("sending video event", peerId)
-	manager.RemoteTracksMux.RLock()
+// 	manager.RemoteTracksMux.RLock()
-	for _, v := range manager.RemoteTracks[peerId] {
+// 	for _, v := range manager.RemoteTracks[peerId] {
-		if v.Track.Kind() == webrtc.RTPCodecTypeVideo {
+// 		if v.Track.Kind() == webrtc.RTPCodecTypeVideo {
-			atomic.SwapInt32(v.rdv, 0)
+// 			atomic.SwapInt32(v.rdv, 0)
-		}
+// 		}
-	}
+// 	}
-	manager.RemoteTracksMux.RUnlock()
+// 	manager.RemoteTracksMux.RUnlock()
-	manager.SquadMapMux.Lock()
+// 	manager.SquadMapMux.Lock()
-	defer manager.SquadMapMux.Unlock()
+// 	defer manager.SquadMapMux.Unlock()
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		manager.DataChannelMapMux.Lock()
+// 		manager.DataChannelMapMux.Lock()
-		if _, ok := manager.DataChannels[member]; ok && member != peerId {
+// 		if _, ok := manager.DataChannels[member]; ok && member != peerId {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type":    VIDEO,
+// 				"type":    VIDEO,
-				"from":    peerId,
+// 				"from":    peerId,
-				"payload": map[string]interface{}{},
+// 				"payload": map[string]interface{}{},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				manager.DataChannelMapMux.Unlock()
+// 				manager.DataChannelMapMux.Unlock()
-				continue
+// 				continue
-			}
+// 			}
-			if sendErr := atomicallyExecute(manager.DataChannels[member].l, func() (err error) {
+// 			if sendErr := atomicallyExecute(manager.DataChannels[member].l, func() (err error) {
-				err = manager.DataChannels[member].DataChannel.SendText(string(bs))
+// 				err = manager.DataChannels[member].DataChannel.SendText(string(bs))
-				return
+// 				return
-			}); sendErr != nil {
+// 			}); sendErr != nil {
-				logger.Println(sendErr)
+// 				logger.Println(sendErr)
-			}
+// 			}
-		}
+// 		}
-		manager.DataChannelMapMux.Unlock()
+// 		manager.DataChannelMapMux.Unlock()
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (w *WebrtcCallVideoManager) stopVideo(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
+// func (w *WebrtcCallVideoManager) stopVideo(peerId string, squadId string, manager *WebRTCCallManager) (err error) {
-	if _, ok := manager.Squads[squadId]; !ok {
+// 	if _, ok := manager.Squads[squadId]; !ok {
-		err = fmt.Errorf("no correponding squad found")
+// 		err = fmt.Errorf("no correponding squad found")
-		return
+// 		return
-	}
+// 	}
-	logger.Println("sending stop video event", peerId)
+// 	logger.Println("sending stop video event", peerId)
-	manager.RemoteTracksMux.RLock()
+// 	manager.RemoteTracksMux.RLock()
-	for _, v := range manager.RemoteTracks[peerId] {
+// 	for _, v := range manager.RemoteTracks[peerId] {
-		if v.Track.Kind() == webrtc.RTPCodecTypeVideo {
+// 		if v.Track.Kind() == webrtc.RTPCodecTypeVideo {
-			atomic.SwapInt32(v.rdv, 1)
+// 			atomic.SwapInt32(v.rdv, 1)
-		}
+// 		}
-	}
+// 	}
-	manager.RemoteTracksMux.RUnlock()
+// 	manager.RemoteTracksMux.RUnlock()
-	manager.SquadMapMux.Lock()
+// 	manager.SquadMapMux.Lock()
-	defer manager.SquadMapMux.Unlock()
+// 	defer manager.SquadMapMux.Unlock()
-	for _, member := range manager.Squads[squadId].Members {
+// 	for _, member := range manager.Squads[squadId].Members {
-		manager.DataChannelMapMux.Lock()
+// 		manager.DataChannelMapMux.Lock()
-		if _, ok := manager.DataChannels[member]; ok && member != peerId {
+// 		if _, ok := manager.DataChannels[member]; ok && member != peerId {
-			bs, marshalErr := json.Marshal(map[string]interface{}{
+// 			bs, marshalErr := json.Marshal(map[string]interface{}{
-				"type":    STOP_VIDEO,
+// 				"type":    STOP_VIDEO,
-				"from":    peerId,
+// 				"from":    peerId,
-				"payload": map[string]interface{}{},
+// 				"payload": map[string]interface{}{},
-			})
+// 			})
-			if marshalErr != nil {
+// 			if marshalErr != nil {
-				logger.Println(err)
+// 				logger.Println(err)
-				manager.DataChannelMapMux.Unlock()
+// 				manager.DataChannelMapMux.Unlock()
-				continue
+// 				continue
-			}
+// 			}
-			for {
+// 			for {
-				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
+// 				if atomic.CompareAndSwapUint32(manager.DataChannels[member].l, 0, 1) {
-					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
+// 					defer atomic.SwapUint32(manager.DataChannels[member].l, 0)
-					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
+// 					if sendErr := manager.DataChannels[member].DataChannel.SendText(string(bs)); sendErr != nil {
-						logger.Println(sendErr)
+// 						logger.Println(sendErr)
-					}
+// 					}
-					break
+// 					break
-				} else {
+// 				} else {
-					continue
+// 					continue
-				}
+// 				}
-			}
+// 			}
-		}
+// 		}
-		manager.DataChannelMapMux.Unlock()
+// 		manager.DataChannelMapMux.Unlock()
-	}
+// 	}
-	return
+// 	return
-}
+// }

webrtcFsManager.go

@@ -1,332 +1,311 @@
 package localserver
 
-import (
+// import (
-	context "context"
+// 	context "context"
-	"encoding/json"
+// 	"encoding/json"
-	"fmt"
+// 	"fmt"
-	"io"
+// 	"io"
-	sync "sync"
+// 	sync "sync"
 
-	"github.com/pion/webrtc/v3"
+// 	"github.com/pion/webrtc/v3"
-)
+// )
 
-type WebrtcFsManager struct {
+// type WebrtcFsManager struct {
-	stream                  SignalingService_LinkClient
+// 	stream                  SignalingService_LinkClient
-	DatachannelManager      DataChannelManager
+// 	DatachannelManager      DataChannelManager
-	LocalSD                 map[string]*webrtc.SessionDescription
+// 	LocalSD                 map[string]*webrtc.SessionDescription
-	RTCPeerConnections      map[string]*webrtc.PeerConnection
+// 	RTCPeerConnections      map[string]*webrtc.PeerConnection
-	DataChannels            map[string]*webrtc.DataChannel
+// 	DataChannels            map[string]*webrtc.DataChannel
-	PendingCandidates       map[string][]*webrtc.ICECandidate
+// 	PendingCandidates       map[string][]*webrtc.ICECandidate
-	CandidateChannel        chan *IncomingCandidate
+// 	CandidateChannel        chan *IncomingCandidate
-	CandidateMux            *sync.RWMutex
+// 	CandidateMux            *sync.RWMutex
-	RTCPeerConnectionMapMux *sync.RWMutex
+// 	RTCPeerConnectionMapMux *sync.RWMutex
-	DataChannelMapMux       *sync.RWMutex
+// 	DataChannelMapMux       *sync.RWMutex
-	LocalSDMapMux           *sync.RWMutex
+// 	LocalSDMapMux           *sync.RWMutex
-}
+// }
 
-func NewWebrtcFsManager(dataChannelManager DataChannelManager) (webrtcFsManager *WebrtcFsManager, err error) {
+// func NewWebrtcFsManager(dataChannelManager DataChannelManager) (webrtcFsManager *WebrtcFsManager, err error) {
-	webrtcFsManager = &WebrtcFsManager{
+// 	webrtcFsManager = &WebrtcFsManager{
-		DatachannelManager:      dataChannelManager,
+// 		DatachannelManager:      dataChannelManager,
-		DataChannels:            make(map[string]*webrtc.DataChannel),
+// 		DataChannels:            make(map[string]*webrtc.DataChannel),
-		PendingCandidates:       make(map[string][]*webrtc.ICECandidate),
+// 		PendingCandidates:       make(map[string][]*webrtc.ICECandidate),
-		LocalSD:                 make(map[string]*webrtc.SessionDescription),
+// 		LocalSD:                 make(map[string]*webrtc.SessionDescription),
-		RTCPeerConnections:      make(map[string]*webrtc.PeerConnection),
+// 		RTCPeerConnections:      make(map[string]*webrtc.PeerConnection),
-		RTCPeerConnectionMapMux: &sync.RWMutex{},
+// 		RTCPeerConnectionMapMux: &sync.RWMutex{},
-		LocalSDMapMux:           &sync.RWMutex{},
+// 		LocalSDMapMux:           &sync.RWMutex{},
-		CandidateMux:            &sync.RWMutex{},
+// 		CandidateMux:            &sync.RWMutex{},
-		DataChannelMapMux:       &sync.RWMutex{},
+// 		DataChannelMapMux:       &sync.RWMutex{},
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (wf *WebrtcFsManager) sendSignalingMessage(messageType, from, to string, payload map[string]interface{}) (err error) {
+// func (wf *WebrtcFsManager) sendSignalingMessage(messageType, from, to string, payload map[string]interface{}) (err error) {
-	bs, err := json.Marshal(payload)
+// 	bs, err := json.Marshal(payload)
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	err = wf.stream.Send(&SignalingMessage{
+// 	err = wf.stream.Send(&SignalingMessage{
-		Type:    messageType,
+// 		Type:    messageType,
-		From:    from,
+// 		From:    from,
-		To:      to,
+// 		To:      to,
-		Payload: bs,
+// 		Payload: bs,
-	})
+// 	})
-	return
+// 	return
-}
+// }
 
-func (wf *WebrtcFsManager) CreateOffer(ctx context.Context, target string, from string, cb OnICECandidateFunc) (err error) {
+// func (wf *WebrtcFsManager) CreateOffer(ctx context.Context, target string, from string, cb OnICECandidateFunc) (err error) {
-	peerConnection, err := wf.createPeerConnection(target, from, webrtc.SDPTypeOffer, cb)
+// 	peerConnection, err := wf.createPeerConnection(target, from, webrtc.SDPTypeOffer, cb)
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	rawOffer, err := peerConnection.CreateOffer(nil)
+// 	rawOffer, err := peerConnection.CreateOffer(nil)
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	if err = peerConnection.SetLocalDescription(rawOffer); err != nil {
+// 	if err = peerConnection.SetLocalDescription(rawOffer); err != nil {
-		return
+// 		return
-	}
+// 	}
-	wf.RTCPeerConnectionMapMux.Lock()
+// 	wf.RTCPeerConnectionMapMux.Lock()
-	logger.Println("adding for target", target)
+// 	logger.Println("adding for target", target)
-	wf.RTCPeerConnections[target] = peerConnection
+// 	wf.RTCPeerConnections[target] = peerConnection
-	wf.RTCPeerConnectionMapMux.Unlock()
+// 	wf.RTCPeerConnectionMapMux.Unlock()
-	err = wf.sendSignalingMessage(string(WEBRTC_OFFER_FS), "lolo_local_serv", target, map[string]any{
+// 	err = wf.sendSignalingMessage(string(WEBRTC_OFFER_FS), "lolo_local_serv", target, map[string]any{
-		"to":   target,
+// 		"to":   target,
-		"from": "lolo_local_serv",
-		"sdp":  rawOffer.SDP,
-	})
-	return
-}
-
-func (wf *WebrtcFsManager) HandleOffer(ctx context.Context, req map[string]string, cb OnICECandidateFunc) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
-		peerConnection, err := wf.createPeerConnection(req[FROM], req[TO], webrtc.SDPTypeAnswer, cb)
-		if err != nil {
-			errCh <- err
-			return
-		}
-		wf.RTCPeerConnectionMapMux.Lock()
-		wf.RTCPeerConnections[req[FROM]] = peerConnection
-		wf.RTCPeerConnectionMapMux.Unlock()
-		offer := webrtc.SessionDescription{
-			Type: webrtc.SDPTypeOffer,
-			SDP:  req[SDP],
-		}
-		if err = peerConnection.SetRemoteDescription(offer); err != nil {
-			errCh <- err
-			return
-		}
-		rawAnswer, err := peerConnection.CreateAnswer(nil)
-		if err != nil {
-			errCh <- err
-			return
-		}
-		wf.LocalSDMapMux.Lock()
-		wf.LocalSD[req[FROM]] = &rawAnswer
-		wf.LocalSDMapMux.Unlock()
-		// if err = wf.stream.Send(&Request{
-		// 	Type:  string(WEBRTC_ANSWER_FS),
-		// 	From:  "lolo_local_serv",
-		// 	Token: "none",
-		// 	Payload: map[string]string{
-		// 		"to":   req[FROM],
 // 		"from": "lolo_local_serv",
-		// 		"sdp":  rawAnswer.SDP,
+// 		"sdp":  rawOffer.SDP,
-		// 	},
+// 	})
-		// }); err != nil {
+// 	return
+// }
+
+// func (wf *WebrtcFsManager) HandleOffer(ctx context.Context, req map[string]string, cb OnICECandidateFunc) (err error) {
+// 	done, errCh := make(chan struct{}), make(chan error)
+// 	go func() {
+// 		peerConnection, err := wf.createPeerConnection(req[FROM], req[TO], webrtc.SDPTypeAnswer, cb)
+// 		if err != nil {
 // 			errCh <- err
 // 			return
 // 		}
-		done <- struct{}{}
+// 		wf.RTCPeerConnectionMapMux.Lock()
-	}()
+// 		wf.RTCPeerConnections[req[FROM]] = peerConnection
-	select {
+// 		wf.RTCPeerConnectionMapMux.Unlock()
-	case <-done:
+// 		offer := webrtc.SessionDescription{
-		return
+// 			Type: webrtc.SDPTypeOffer,
-	case err = <-errCh:
+// 			SDP:  req[SDP],
-		return
+// 		}
-	case <-ctx.Done():
+// 		if err = peerConnection.SetRemoteDescription(offer); err != nil {
-		err = ctx.Err()
+// 			errCh <- err
-		return
+// 			return
-	}
+// 		}
-}
+// 		rawAnswer, err := peerConnection.CreateAnswer(nil)
+// 		if err != nil {
+// 			errCh <- err
+// 			return
+// 		}
+// 		wf.LocalSDMapMux.Lock()
+// 		wf.LocalSD[req[FROM]] = &rawAnswer
+// 		wf.LocalSDMapMux.Unlock()
+// 		// if err = wf.stream.Send(&Request{
+// 		// 	Type:  string(WEBRTC_ANSWER_FS),
+// 		// 	From:  "lolo_local_serv",
+// 		// 	Token: "none",
+// 		// 	Payload: map[string]string{
+// 		// 		"to":   req[FROM],
+// 		// 		"from": "lolo_local_serv",
+// 		// 		"sdp":  rawAnswer.SDP,
+// 		// 	},
+// 		// }); err != nil {
+// 		// 	errCh <- err
+// 		// 	return
+// 		// }
+// 		done <- struct{}{}
+// 	}()
+// 	select {
+// 	case <-done:
+// 		return
+// 	case err = <-errCh:
+// 		return
+// 	case <-ctx.Done():
+// 		err = ctx.Err()
+// 		return
+// 	}
+// }
 
-func (wf *WebrtcFsManager) HandleAnswer(ctx context.Context, req map[string]string) (err error) {
+// func (wf *WebrtcFsManager) HandleAnswer(ctx context.Context, req map[string]string) (err error) {
-	wf.RTCPeerConnectionMapMux.RLock()
+// 	wf.RTCPeerConnectionMapMux.RLock()
-	defer wf.RTCPeerConnectionMapMux.RUnlock()
+// 	defer wf.RTCPeerConnectionMapMux.RUnlock()
-	defer func() {
+// 	defer func() {
-		if r := recover(); err != nil {
+// 		if r := recover(); err != nil {
-			logger.Printf("recover from panic : %v\n", r)
+// 			logger.Printf("recover from panic : %v\n", r)
-		}
+// 		}
-	}()
+// 	}()
-	if _, ok := wf.RTCPeerConnections[req[FROM]]; !ok {
+// 	if _, ok := wf.RTCPeerConnections[req[FROM]]; !ok {
-		err = fmt.Errorf("no corresponding peer connection for id : %s", req[FROM])
+// 		err = fmt.Errorf("no corresponding peer connection for id : %s", req[FROM])
-		return
+// 		return
-	}
+// 	}
-	peerConnnection := wf.RTCPeerConnections[req[FROM]]
+// 	peerConnnection := wf.RTCPeerConnections[req[FROM]]
-	if err = peerConnnection.SetRemoteDescription(webrtc.SessionDescription{
+// 	if err = peerConnnection.SetRemoteDescription(webrtc.SessionDescription{
-		Type: webrtc.SDPTypeAnswer,
+// 		Type: webrtc.SDPTypeAnswer,
-		SDP:  req[SDP],
+// 		SDP:  req[SDP],
-	}); err != nil {
-		return
-	}
-	// if err = wf.stream.Send(&Request{
-	// 	Type:  string(WEBRTC_COUNTER_OFFER_FS),
-	// 	From:  "lolo_local_serv",
-	// 	Token: "none",
-	// 	Payload: map[string]string{
-	// 		"from": "lolo_local_serv",
-	// 		"to":   req[FROM],
-	// 	},
 // 	}); err != nil {
 // 		return
 // 	}
-	wf.CandidateMux.RLock()
+// 	// if err = wf.stream.Send(&Request{
-	for range wf.PendingCandidates[req[FROM]] {
+// 	// 	Type:  string(WEBRTC_COUNTER_OFFER_FS),
-		logger.Println("sending candidate to", req[FROM])
+// 	// 	From:  "lolo_local_serv",
-		// if err = wf.stream.Send(&Request{
+// 	// 	Token: "none",
-		// 	Type:  string(WEBRTC_CANDIDATE_FS),
+// 	// 	Payload: map[string]string{
-		// 	From:  "lolo_local_serv",
+// 	// 		"from": "lolo_local_serv",
-		// 	Token: "none",
+// 	// 		"to":   req[FROM],
-		// 	Payload: map[string]string{
+// 	// 	},
-		// 		"from":          "lolo_local_serv",
+// 	// }); err != nil {
-		// 		"to":            req[FROM],
+// 	// 	return
-		// 		"candidate":     candidate.ToJSON().Candidate,
+// 	// }
-		// 		"sdpMid":        *candidate.ToJSON().SDPMid,
+// 	wf.CandidateMux.RLock()
-		// 		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+// 	for range wf.PendingCandidates[req[FROM]] {
-		// 	},
-		// }); err != nil {
-		// 	return
-		// }
-	}
-	wf.CandidateMux.RUnlock()
-	wf.CandidateMux.Lock()
-	delete(wf.PendingCandidates, req[FROM])
-	wf.CandidateMux.Unlock()
-	wf.LocalSDMapMux.Lock()
-	delete(wf.LocalSD, req[FROM])
-	wf.LocalSDMapMux.Unlock()
-	return
-}
-
-func (wf *WebrtcFsManager) HandleCounterOffer(ctx context.Context, req map[string]string) (err error) {
-	wf.RTCPeerConnectionMapMux.RLock()
-	if _, ok := wf.RTCPeerConnections[req[FROM]]; !ok {
-		err = fmt.Errorf("no field corresponding peer connection for id %s", req[FROM])
-		return
-	}
-	connection := wf.RTCPeerConnections[req[FROM]]
-	wf.RTCPeerConnectionMapMux.RUnlock()
-	wf.LocalSDMapMux.RLock()
-	if err = connection.SetLocalDescription(*wf.LocalSD[req[FROM]]); err != nil {
-		return
-	}
-	wf.LocalSDMapMux.RUnlock()
-	wf.CandidateMux.RLock()
-	for range wf.PendingCandidates[req[FROM]] {
 // 		logger.Println("sending candidate to", req[FROM])
-		// if err = wf.stream.Send(&Request{
+// 		// if err = wf.stream.Send(&Request{
-		// 	Type:  string(WEBRTC_CANDIDATE_FS),
+// 		// 	Type:  string(WEBRTC_CANDIDATE_FS),
-		// 	From:  "lolo_local_serv",
+// 		// 	From:  "lolo_local_serv",
-		// 	Token: "none",
+// 		// 	Token: "none",
-		// 	Payload: map[string]string{
+// 		// 	Payload: map[string]string{
-		// 		"from":          "lolo_local_serv",
+// 		// 		"from":          "lolo_local_serv",
-		// 		"to":            req[FROM],
+// 		// 		"to":            req[FROM],
-		// 		"candidate":     candidate.ToJSON().Candidate,
+// 		// 		"candidate":     candidate.ToJSON().Candidate,
-		// 		"sdpMid":        *candidate.ToJSON().SDPMid,
+// 		// 		"sdpMid":        *candidate.ToJSON().SDPMid,
-		// 		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+// 		// 		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
-		// 	},
+// 		// 	},
-		// }); err != nil {
+// 		// }); err != nil {
+// 		// 	return
+// 		// }
+// 	}
+// 	wf.CandidateMux.RUnlock()
+// 	wf.CandidateMux.Lock()
+// 	delete(wf.PendingCandidates, req[FROM])
+// 	wf.CandidateMux.Unlock()
+// 	wf.LocalSDMapMux.Lock()
+// 	delete(wf.LocalSD, req[FROM])
+// 	wf.LocalSDMapMux.Unlock()
 // 	return
 // }
-	}
-	wf.CandidateMux.RUnlock()
-	return
-}
 
-func (wf *WebrtcFsManager) createPeerConnection(target string, from string, peerType webrtc.SDPType, cb OnICECandidateFunc) (peerConnection *webrtc.PeerConnection, err error) {
+// func (wf *WebrtcFsManager) HandleCounterOffer(ctx context.Context, req map[string]string) (err error) {
-	defer func() {
+// 	wf.RTCPeerConnectionMapMux.RLock()
-		if r := recover(); err != nil {
+// 	if _, ok := wf.RTCPeerConnections[req[FROM]]; !ok {
-			logger.Printf("recover from panic : %v\n", r)
+// 		err = fmt.Errorf("no field corresponding peer connection for id %s", req[FROM])
-		}
+// 		return
-	}()
+// 	}
-	s := webrtc.SettingEngine{}
+// 	connection := wf.RTCPeerConnections[req[FROM]]
-	s.DetachDataChannels()
+// 	wf.RTCPeerConnectionMapMux.RUnlock()
+// 	wf.LocalSDMapMux.RLock()
+// 	if err = connection.SetLocalDescription(*wf.LocalSD[req[FROM]]); err != nil {
+// 		return
+// 	}
+// 	wf.LocalSDMapMux.RUnlock()
+// 	wf.CandidateMux.RLock()
+// 	for range wf.PendingCandidates[req[FROM]] {
+// 		// logger.Println("sending candidate to", req[FROM])
+// 		// if err = wf.stream.Send(&Request{
+// 		// 	Type:  string(WEBRTC_CANDIDATE_FS),
+// 		// 	From:  "lolo_local_serv",
+// 		// 	Token: "none",
+// 		// 	Payload: map[string]string{
+// 		// 		"from":          "lolo_local_serv",
+// 		// 		"to":            req[FROM],
+// 		// 		"candidate":     candidate.ToJSON().Candidate,
+// 		// 		"sdpMid":        *candidate.ToJSON().SDPMid,
+// 		// 		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+// 		// 	},
+// 		// }); err != nil {
+// 		// 	return
+// 		// }
+// 	}
+// 	wf.CandidateMux.RUnlock()
+// 	return
+// }
 
-	api := webrtc.NewAPI(webrtc.WithSettingEngine(s))
+// func (wf *WebrtcFsManager) createPeerConnection(target string, from string, peerType webrtc.SDPType, cb OnICECandidateFunc) (peerConnection *webrtc.PeerConnection, err error) {
+// 	defer func() {
+// 		if r := recover(); err != nil {
+// 			logger.Printf("recover from panic : %v\n", r)
+// 		}
+// 	}()
+// 	s := webrtc.SettingEngine{}
+// 	s.DetachDataChannels()
 
-	config := webrtc.Configuration{
+// 	api := webrtc.NewAPI(webrtc.WithSettingEngine(s))
-		ICEServers: []webrtc.ICEServer{
+
-			{
+// 	config := webrtc.Configuration{
-				URLs: []string{"stun:stun.l.google.com:19302", "stun:stunserver.org:3478", "stun:stun.l.google.com:19302?transport=tcp"},
+// 		ICEServers: []webrtc.ICEServer{
-			},
+// 			{
-		},
+// 				URLs: []string{"stun:stun.l.google.com:19302", "stun:stun.l.google.com:19302", "stun:stun.l.google.com:19302?transport=tcp"},
-		SDPSemantics: webrtc.SDPSemanticsUnifiedPlan,
+// 			},
-	}
+// 		},
-	peerConnection, err = api.NewPeerConnection(config)
+// 		SDPSemantics: webrtc.SDPSemanticsUnifiedPlan,
-	if err != nil {
+// 	}
-		return
+// 	peerConnection, err = api.NewPeerConnection(config)
-	}
+// 	if err != nil {
-	if peerType == webrtc.SDPTypeOffer {
+// 		return
-		maxRetransmits := uint16(100)
+// 	}
-		channel, err := peerConnection.CreateDataChannel("data", &webrtc.DataChannelInit{
+// 	if peerType == webrtc.SDPTypeOffer {
-			MaxRetransmits: &maxRetransmits,
+// 		maxRetransmits := uint16(100)
-		})
+// 		channel, err := peerConnection.CreateDataChannel("data", &webrtc.DataChannelInit{
-		if err != nil {
+// 			MaxRetransmits: &maxRetransmits,
-			return nil, err
+// 		})
-		}
+// 		if err != nil {
-		channel.OnOpen(func() {
+// 			return nil, err
-			logger.Println("channel opened")
+// 		}
-			if chanErr := channel.SendText("yooo man this is open"); chanErr != nil {
+// 		channel.OnOpen(func() {
-				logger.Println(chanErr)
+// 			logger.Println("channel opened")
-			}
+// 			if chanErr := channel.SendText("yooo man this is open"); chanErr != nil {
-		})
+// 				logger.Println(chanErr)
-		channel.OnMessage(func(msg webrtc.DataChannelMessage) {
+// 			}
-			logger.Printf("new message %s\n", string(msg.Data))
+// 		})
-			done, errCh := wf.DatachannelManager.HandleMessage(&DatachannelMessage{
+// 		channel.OnMessage(func(msg webrtc.DataChannelMessage) {
-				From:    target,
+// 			logger.Printf("new message %s\n", string(msg.Data))
-				Type:    "test",
+// 			done, errCh := wf.DatachannelManager.HandleMessage(&DatachannelMessage{
-				Payload: &DatachannelMessagePayload{},
+// 				From:    target,
-			}, channel)
+// 				Type:    "test",
-			select {
+// 				Payload: &DatachannelMessagePayload{},
-			case <-done:
+// 			}, channel)
-				//logger.Println("done with success")
+// 			select {
-			case e := <-errCh:
+// 			case <-done:
-				logger.Println(e)
+// 				//logger.Println("done with success")
-				logger.Println("this is impossible")
+// 			case e := <-errCh:
-			}
+// 				logger.Println(e)
-		})
+// 				logger.Println("this is impossible")
-		wf.DataChannelMapMux.Lock()
+// 			}
-		wf.DataChannels[target] = channel
+// 		})
-		wf.DataChannelMapMux.Unlock()
+// 		wf.DataChannelMapMux.Lock()
-	}
+// 		wf.DataChannels[target] = channel
-	peerConnection.OnICEConnectionStateChange(func(is webrtc.ICEConnectionState) {
+// 		wf.DataChannelMapMux.Unlock()
-		logger.Printf("ICE connection state has changed %s\n", is.String())
+// 	}
-		if is == webrtc.ICEConnectionStateDisconnected || is == webrtc.ICEConnectionStateFailed {
+// 	peerConnection.OnICEConnectionStateChange(func(is webrtc.ICEConnectionState) {
-			logger.Println(is)
+// 		logger.Printf("ICE connection state has changed %s\n", is.String())
-		}
+// 		if is == webrtc.ICEConnectionStateDisconnected || is == webrtc.ICEConnectionStateFailed {
-	})
+// 			logger.Println(is)
-	peerConnection.OnDataChannel(func(dc *webrtc.DataChannel) {
+// 		}
-		dc.OnOpen(func() {
+// 	})
-			logger.Printf("got a new open datachannel %s\n", dc.Label())
+// 	peerConnection.OnDataChannel(func(dc *webrtc.DataChannel) {
-			dataChann, err := dc.Detach()
+// 		dc.OnOpen(func() {
-			if err != nil {
+// 			logger.Printf("got a new open datachannel %s\n", dc.Label())
-				logger.Println(err)
+// 			dataChann, err := dc.Detach()
-				return
+// 			if err != nil {
-			}
+// 				logger.Println(err)
-			for {
+// 				return
-				var x []byte = make([]byte, 2<<15)
+// 			}
-				n, _, err := dataChann.ReadDataChannel(x)
+// 			for {
-				if err != nil {
+// 				var x []byte = make([]byte, 2<<15)
-					logger.Println(err)
+// 				n, _, err := dataChann.ReadDataChannel(x)
-					if err == io.EOF {
+// 				if err != nil {
-						return
+// 					logger.Println(err)
-					}
+// 					if err == io.EOF {
-					continue
+// 						return
-				}
+// 					}
-				go func(msg []byte) {
+// 					continue
-					var dataChannelMessage DatachannelMessage
+// 				}
-					if unmarshalErr := json.Unmarshal(msg, &dataChannelMessage); unmarshalErr != nil {
+// 				go func(msg []byte) {
-						logger.Println(unmarshalErr)
-						return
-					}
-					done, errCh := wf.DatachannelManager.HandleMessage(&DatachannelMessage{
-						From:    dataChannelMessage.From,
-						Type:    dataChannelMessage.Type,
-						Payload: dataChannelMessage.Payload,
-					}, dc)
-					select {
-					case <-done:
-						//logger.Println("done with success")
-					case e := <-errCh:
-						logger.Println(e)
-						logger.Println("this is impossible")
-					}
-				}(x[:n])
-			}
-		})
-		// dc.OnMessage(func(msg webrtc.DataChannelMessage) {
 // 					var dataChannelMessage DatachannelMessage
-		// 	if unmarshalErr := json.Unmarshal(msg.Data, &dataChannelMessage); unmarshalErr != nil {
+// 					if unmarshalErr := json.Unmarshal(msg, &dataChannelMessage); unmarshalErr != nil {
 // 						logger.Println(unmarshalErr)
 // 						return
 // 					}
@@ -342,108 +321,129 @@ func (wf *WebrtcFsManager) createPeerConnection(target string, from string, peer
 // 						logger.Println(e)
 // 						logger.Println("this is impossible")
 // 					}
+// 				}(x[:n])
+// 			}
 // 		})
-	})
+// 		// dc.OnMessage(func(msg webrtc.DataChannelMessage) {
-	peerConnection.OnICECandidate(func(i *webrtc.ICECandidate) {
+// 		// 	var dataChannelMessage DatachannelMessage
-		if i == nil {
+// 		// 	if unmarshalErr := json.Unmarshal(msg.Data, &dataChannelMessage); unmarshalErr != nil {
-			return
+// 		// 		logger.Println(unmarshalErr)
-		}
+// 		// 		return
-		wf.CandidateMux.Lock()
+// 		// 	}
-		defer wf.CandidateMux.Unlock()
+// 		// 	done, errCh := wf.DatachannelManager.HandleMessage(&DatachannelMessage{
-		desc := peerConnection.RemoteDescription()
+// 		// 		From:    dataChannelMessage.From,
-		if desc == nil {
+// 		// 		Type:    dataChannelMessage.Type,
-			wf.PendingCandidates[target] = append(wf.PendingCandidates[target], i)
+// 		// 		Payload: dataChannelMessage.Payload,
-		} else {
+// 		// 	}, dc)
-			logger.Println(i)
+// 		// 	select {
-			if iceCandidateErr := cb(target, i); iceCandidateErr != nil {
+// 		// 	case <-done:
-				logger.Println(iceCandidateErr)
+// 		// 		//logger.Println("done with success")
-			}
+// 		// 	case e := <-errCh:
-		}
+// 		// 		logger.Println(e)
-	})
+// 		// 		logger.Println("this is impossible")
-	peerConnection.OnNegotiationNeeded(func() {
+// 		// 	}
-		if peerConnection.SignalingState() != webrtc.SignalingStateHaveLocalOffer && peerConnection.SignalingState() != webrtc.SignalingStateHaveRemoteOffer {
+// 		// })
-			wf.RTCPeerConnectionMapMux.Lock()
+// 	})
-			defer wf.RTCPeerConnectionMapMux.Unlock()
+// 	peerConnection.OnICECandidate(func(i *webrtc.ICECandidate) {
-			for _, connection := range wf.RTCPeerConnections {
+// 		if i == nil {
-				if connection.SignalingState() != webrtc.SignalingStateHaveLocalOffer && connection.SignalingState() != webrtc.SignalingStateHaveRemoteOffer {
+// 			return
-					localSd, err := connection.CreateOffer(nil)
+// 		}
-					if err != nil {
+// 		wf.CandidateMux.Lock()
-						logger.Println(err)
+// 		defer wf.CandidateMux.Unlock()
-						return
+// 		desc := peerConnection.RemoteDescription()
-					}
+// 		if desc == nil {
-					if err = connection.SetLocalDescription(localSd); err != nil {
+// 			wf.PendingCandidates[target] = append(wf.PendingCandidates[target], i)
-						logger.Println(err)
+// 		} else {
-						return
+// 			logger.Println(i)
-					}
+// 			if iceCandidateErr := cb(target, i); iceCandidateErr != nil {
-					// if err = wf.stream.Send(&Request{
+// 				logger.Println(iceCandidateErr)
-					// 	Type:  string(WEBRTC_RENNEGOTIATION_OFFER_FS),
+// 			}
-					// 	From:  "lolo_local_serv",
+// 		}
-					// 	Token: "",
+// 	})
-					// 	Payload: map[string]string{
+// 	peerConnection.OnNegotiationNeeded(func() {
-					// 		"to":  id,
+// 		if peerConnection.SignalingState() != webrtc.SignalingStateHaveLocalOffer && peerConnection.SignalingState() != webrtc.SignalingStateHaveRemoteOffer {
-					// 		"sdp": localSd.SDP,
+// 			wf.RTCPeerConnectionMapMux.Lock()
-					// 	},
+// 			defer wf.RTCPeerConnectionMapMux.Unlock()
-					// }); err != nil {
+// 			for _, connection := range wf.RTCPeerConnections {
+// 				if connection.SignalingState() != webrtc.SignalingStateHaveLocalOffer && connection.SignalingState() != webrtc.SignalingStateHaveRemoteOffer {
+// 					localSd, err := connection.CreateOffer(nil)
+// 					if err != nil {
 // 						logger.Println(err)
 // 						return
 // 					}
-				}
+// 					if err = connection.SetLocalDescription(localSd); err != nil {
-			}
-		}
-	})
-	return
-}
-
-func (wf *WebrtcFsManager) HandleRennegotiationOffer(from string, dst string, sdp string) (err error) {
-	wf.RTCPeerConnectionMapMux.Lock()
-	defer wf.RTCPeerConnectionMapMux.Unlock()
-	if _, ok := wf.RTCPeerConnections[from]; !ok {
-		err = fmt.Errorf("no corresponding peer connection for id %s", from)
-		return
-	}
-	if wf.RTCPeerConnections[from].SignalingState() != webrtc.SignalingStateStable {
-		err = fmt.Errorf("rennego called in wrong state")
-		return
-	}
-	if err = wf.RTCPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeOffer}); err != nil {
-		return
-	}
-	localSd, err := wf.RTCPeerConnections[from].CreateAnswer(nil)
-	if err != nil {
-		return
-	}
-	if err = wf.RTCPeerConnections[from].SetLocalDescription(localSd); err != nil {
-		return
-	}
-	// if err = wf.stream.Send(&Request{
-	// 	Type:  string(WEBRTC_RENNEGOTIATION_ANSWER_FS),
-	// 	From:  "lolo_local_serv",
-	// 	Token: "",
-	// 	Payload: map[string]string{
-	// 		"to":  from,
-	// 		"sdp": localSd.SDP,
-	// 	},
-	// }); err != nil {
 // 						logger.Println(err)
 // 						return
 // 					}
-	return
+// 					// if err = wf.stream.Send(&Request{
-}
+// 					// 	Type:  string(WEBRTC_RENNEGOTIATION_OFFER_FS),
+// 					// 	From:  "lolo_local_serv",
+// 					// 	Token: "",
+// 					// 	Payload: map[string]string{
+// 					// 		"to":  id,
+// 					// 		"sdp": localSd.SDP,
+// 					// 	},
+// 					// }); err != nil {
+// 					// 	logger.Println(err)
+// 					// 	return
+// 					// }
+// 				}
+// 			}
+// 		}
+// 	})
+// 	return
+// }
 
-func (wf *WebrtcFsManager) HandleRennegotiationAnswer(from string, dst string, sdp string) (err error) {
+// func (wf *WebrtcFsManager) HandleRennegotiationOffer(from string, dst string, sdp string) (err error) {
-	wf.RTCPeerConnectionMapMux.Lock()
+// 	wf.RTCPeerConnectionMapMux.Lock()
-	defer wf.RTCPeerConnectionMapMux.Unlock()
+// 	defer wf.RTCPeerConnectionMapMux.Unlock()
-	if _, ok := wf.RTCPeerConnections[from]; !ok {
+// 	if _, ok := wf.RTCPeerConnections[from]; !ok {
-		err = fmt.Errorf("no corresponding peer connection for id %s", from)
+// 		err = fmt.Errorf("no corresponding peer connection for id %s", from)
-		return
+// 		return
-	}
+// 	}
-	err = wf.RTCPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeAnswer})
+// 	if wf.RTCPeerConnections[from].SignalingState() != webrtc.SignalingStateStable {
-	return
+// 		err = fmt.Errorf("rennego called in wrong state")
-}
+// 		return
+// 	}
+// 	if err = wf.RTCPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeOffer}); err != nil {
+// 		return
+// 	}
+// 	localSd, err := wf.RTCPeerConnections[from].CreateAnswer(nil)
+// 	if err != nil {
+// 		return
+// 	}
+// 	if err = wf.RTCPeerConnections[from].SetLocalDescription(localSd); err != nil {
+// 		return
+// 	}
+// 	// if err = wf.stream.Send(&Request{
+// 	// 	Type:  string(WEBRTC_RENNEGOTIATION_ANSWER_FS),
+// 	// 	From:  "lolo_local_serv",
+// 	// 	Token: "",
+// 	// 	Payload: map[string]string{
+// 	// 		"to":  from,
+// 	// 		"sdp": localSd.SDP,
+// 	// 	},
+// 	// }); err != nil {
+// 	// 	logger.Println(err)
+// 	// 	return
+// 	// }
+// 	return
+// }
 
-func (wf *WebrtcFsManager) AddCandidate(candidate *webrtc.ICECandidateInit, from string) (err error) {
+// func (wf *WebrtcFsManager) HandleRennegotiationAnswer(from string, dst string, sdp string) (err error) {
-	wf.RTCPeerConnectionMapMux.Lock()
+// 	wf.RTCPeerConnectionMapMux.Lock()
-	defer wf.RTCPeerConnectionMapMux.Unlock()
+// 	defer wf.RTCPeerConnectionMapMux.Unlock()
-	err = wf.RTCPeerConnections[from].AddICECandidate(*candidate)
+// 	if _, ok := wf.RTCPeerConnections[from]; !ok {
-	return
+// 		err = fmt.Errorf("no corresponding peer connection for id %s", from)
-}
+// 		return
+// 	}
+// 	err = wf.RTCPeerConnections[from].SetRemoteDescription(webrtc.SessionDescription{SDP: sdp, Type: webrtc.SDPTypeAnswer})
+// 	return
+// }
+
+// func (wf *WebrtcFsManager) AddCandidate(candidate *webrtc.ICECandidateInit, from string) (err error) {
+// 	wf.RTCPeerConnectionMapMux.Lock()
+// 	defer wf.RTCPeerConnectionMapMux.Unlock()
+// 	err = wf.RTCPeerConnections[from].AddICECandidate(*candidate)
+// 	return
+// }

webrtcFsMiddleware.go

@@ -1,167 +1,167 @@
 package localserver
 
-import (
+// import (
-	context "context"
+// 	context "context"
-	"encoding/json"
+// 	"encoding/json"
-	"strconv"
+// 	"strconv"
 
-	"github.com/pion/webrtc/v3"
+// 	"github.com/pion/webrtc/v3"
-)
+// )
 
-const (
+// const (
-	INCOMING_PEER_FS                ReqType = "incoming_peer_fs"
+// 	INCOMING_PEER_FS                ReqType = "incoming_peer_fs"
-	LEAVING_PEER_FS                 ReqType = "leaving_peer_fs"
+// 	LEAVING_PEER_FS                 ReqType = "leaving_peer_fs"
-	WEBRTC_OFFER_FS                 ReqType = "offer_fs"
+// 	WEBRTC_OFFER_FS                 ReqType = "offer_fs"
-	WEBRTC_ANSWER_FS                ReqType = "answer_fs"
+// 	WEBRTC_ANSWER_FS                ReqType = "answer_fs"
-	WEBRTC_RENNEGOTIATION_OFFER_FS  ReqType = "rennegotiation_offer_fs"
+// 	WEBRTC_RENNEGOTIATION_OFFER_FS  ReqType = "rennegotiation_offer_fs"
-	WEBRTC_RENNEGOTIATION_ANSWER_FS ReqType = "rennegotiation_answer_fs"
+// 	WEBRTC_RENNEGOTIATION_ANSWER_FS ReqType = "rennegotiation_answer_fs"
-	WEBRTC_COUNTER_OFFER_FS         ReqType = "webrtc_counter_offer_fs"
+// 	WEBRTC_COUNTER_OFFER_FS         ReqType = "webrtc_counter_offer_fs"
-	WEBRTC_CANDIDATE_FS             ReqType = "webrtc_candidate_fs"
+// 	WEBRTC_CANDIDATE_FS             ReqType = "webrtc_candidate_fs"
-)
+// )
 
-type WebRTCFsMiddleware struct {
+// type WebRTCFsMiddleware struct {
-	Manager *WebrtcFsManager
+// 	Manager *WebrtcFsManager
-	stream  SignalingService_LinkClient
+// 	stream  SignalingService_LinkClient
-}
+// }
 
-func NewWebRTCFsMiddleware(manager *WebrtcFsManager) (webrtcFsMiddleware *WebRTCFsMiddleware) {
+// func NewWebRTCFsMiddleware(manager *WebrtcFsManager) (webrtcFsMiddleware *WebRTCFsMiddleware) {
-	webrtcFsMiddleware = &WebRTCFsMiddleware{
+// 	webrtcFsMiddleware = &WebRTCFsMiddleware{
-		Manager: manager,
+// 		Manager: manager,
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (wfm *WebRTCFsMiddleware) signalCandidate(to string, candidate *webrtc.ICECandidate) (err error) {
+// func (wfm *WebRTCFsMiddleware) signalCandidate(to string, candidate *webrtc.ICECandidate) (err error) {
-	bs, err := json.Marshal(map[string]string{
+// 	bs, err := json.Marshal(map[string]string{
-		"from":          "lolo_local_serv",
+// 		"from":          "lolo_local_serv",
-		"to":            to,
+// 		"to":            to,
-		"candidate":     candidate.ToJSON().Candidate,
+// 		"candidate":     candidate.ToJSON().Candidate,
-		"sdpMid":        *candidate.ToJSON().SDPMid,
+// 		"sdpMid":        *candidate.ToJSON().SDPMid,
-		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+// 		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
-	})
+// 	})
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	err = wfm.stream.Send(&SignalingMessage{
+// 	err = wfm.stream.Send(&SignalingMessage{
-		Type:    string(WEBRTC_CANDIDATE_FS),
+// 		Type:    string(WEBRTC_CANDIDATE_FS),
-		From:    "lolo_local_serv",
+// 		From:    "lolo_local_serv",
-		Payload: bs,
+// 		Payload: bs,
-	})
+// 	})
-	return
+// 	return
-}
+// }
 
-func (wfm *WebRTCFsMiddleware) Process(ctx context.Context, req *SignalingMessage, stream SignalingService_LinkClient) (err error) {
+// func (wfm *WebRTCFsMiddleware) Process(ctx context.Context, req *SignalingMessage, stream SignalingService_LinkClient) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
+// 	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
+// 	go func() {
-		var payload map[string]string
+// 		var payload map[string]string
-		if e := json.Unmarshal(req.Payload, &payload); err != nil {
+// 		if e := json.Unmarshal(req.Payload, &payload); err != nil {
-			errCh <- e
+// 			errCh <- e
-			return
+// 			return
-		}
+// 		}
-		switch req.Type {
+// 		switch req.Type {
-		case string(INCOMING_PEER_FS):
+// 		case string(INCOMING_PEER_FS):
-			logger.Println("quit squad called")
+// 			logger.Println("quit squad called")
-			if from, ok := payload[FROM]; ok {
+// 			if from, ok := payload[FROM]; ok {
-				logger.Println(from)
+// 				logger.Println(from)
-				//wfm.Manager.HandleLeavingMember(from)
+// 				//wfm.Manager.HandleLeavingMember(from)
-				done <- struct{}{}
+// 				done <- struct{}{}
-			}
+// 			}
-		case string(PEER_CONNECTION_REQUEST):
+// 		case string(PEER_CONNECTION_REQUEST):
-			if err := validateRequest(payload, FROM, TO); err != nil {
+// 			if err := validateRequest(payload, FROM, TO); err != nil {
-				errCh <- err
-				return
-			}
-			// if err := wfm.Manager.CreateOffer(ctx, payload[FROM], payload[TO], wfm.signalCandidate); err != nil {
 // 				errCh <- err
 // 				return
 // 			}
-			done <- struct{}{}
+// 			// if err := wfm.Manager.CreateOffer(ctx, payload[FROM], payload[TO], wfm.signalCandidate); err != nil {
-		case string(WEBRTC_OFFER_FS):
+// 			// 	errCh <- err
-			if err := validateRequest(payload, FROM, TO, SDP); err != nil {
+// 			// 	return
-				errCh <- err
+// 			// }
-				return
+// 			done <- struct{}{}
-			}
+// 		case string(WEBRTC_OFFER_FS):
-			if err := wfm.Manager.HandleOffer(ctx, payload, wfm.signalCandidate); err != nil {
+// 			if err := validateRequest(payload, FROM, TO, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			done <- struct{}{}
+// 			if err := wfm.Manager.HandleOffer(ctx, payload, wfm.signalCandidate); err != nil {
-		case string(WEBRTC_ANSWER_FS):
+// 				errCh <- err
-			if err := validateRequest(payload, FROM, TO, SDP); err != nil {
+// 				return
-				errCh <- err
+// 			}
-				return
+// 			done <- struct{}{}
-			}
+// 		case string(WEBRTC_ANSWER_FS):
-			if err := wfm.Manager.HandleAnswer(ctx, payload); err != nil {
+// 			if err := validateRequest(payload, FROM, TO, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			done <- struct{}{}
+// 			if err := wfm.Manager.HandleAnswer(ctx, payload); err != nil {
-		case string(WEBRTC_COUNTER_OFFER_FS):
+// 				errCh <- err
-			if err := validateRequest(payload, FROM); err != nil {
+// 				return
-				errCh <- err
+// 			}
-				return
+// 			done <- struct{}{}
-			}
+// 		case string(WEBRTC_COUNTER_OFFER_FS):
-			if err := wfm.Manager.HandleCounterOffer(ctx, payload); err != nil {
+// 			if err := validateRequest(payload, FROM); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			done <- struct{}{}
+// 			if err := wfm.Manager.HandleCounterOffer(ctx, payload); err != nil {
-		case string(WEBRTC_RENNEGOTIATION_ANSWER_FS):
+// 				errCh <- err
-			if err := validateRequest(payload, FROM, SDP); err != nil {
+// 				return
-				errCh <- err
+// 			}
-				return
+// 			done <- struct{}{}
-			}
+// 		case string(WEBRTC_RENNEGOTIATION_ANSWER_FS):
-			if err := wfm.Manager.HandleRennegotiationAnswer(payload[FROM], "lolo_local_serv", payload[SDP]); err != nil {
+// 			if err := validateRequest(payload, FROM, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			done <- struct{}{}
+// 			if err := wfm.Manager.HandleRennegotiationAnswer(payload[FROM], "lolo_local_serv", payload[SDP]); err != nil {
-		case string(WEBRTC_RENNEGOTIATION_OFFER_FS):
+// 				errCh <- err
-			if err := validateRequest(payload, FROM, SDP); err != nil {
+// 				return
-				errCh <- err
+// 			}
-				return
+// 			done <- struct{}{}
-			}
+// 		case string(WEBRTC_RENNEGOTIATION_OFFER_FS):
-			if err := wfm.Manager.HandleRennegotiationOffer(payload[FROM], "", payload[SDP]); err != nil {
+// 			if err := validateRequest(payload, FROM, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			done <- struct{}{}
+// 			if err := wfm.Manager.HandleRennegotiationOffer(payload[FROM], "", payload[SDP]); err != nil {
-		case string(WEBRTC_CANDIDATE_FS):
+// 				errCh <- err
-			if err := validateRequest(payload, FROM, "candidate", "sdpMLineIndex", "sdpMid"); err != nil {
+// 				return
-				errCh <- err
+// 			}
-				return
+// 			done <- struct{}{}
-			}
+// 		case string(WEBRTC_CANDIDATE_FS):
-			logger.Println(payload)
+// 			if err := validateRequest(payload, FROM, "candidate", "sdpMLineIndex", "sdpMid"); err != nil {
-			i, err := strconv.Atoi(payload["sdpMLineIndex"])
+// 				errCh <- err
-			if err != nil {
+// 				return
-				errCh <- err
+// 			}
-				return
+// 			logger.Println(payload)
-			}
+// 			i, err := strconv.Atoi(payload["sdpMLineIndex"])
-			SDPMLineIndex := uint16(i)
+// 			if err != nil {
-			sdpMid := payload["sdpMid"]
+// 				errCh <- err
-			logger.Println(sdpMid, SDPMLineIndex)
+// 				return
-			if err := wfm.Manager.AddCandidate(&webrtc.ICECandidateInit{
+// 			}
-				Candidate:     payload["candidate"],
+// 			SDPMLineIndex := uint16(i)
-				SDPMid:        &sdpMid,
+// 			sdpMid := payload["sdpMid"]
-				SDPMLineIndex: &SDPMLineIndex,
+// 			logger.Println(sdpMid, SDPMLineIndex)
-			}, payload[FROM]); err != nil {
+// 			if err := wfm.Manager.AddCandidate(&webrtc.ICECandidateInit{
-				errCh <- err
+// 				Candidate:     payload["candidate"],
-				return
+// 				SDPMid:        &sdpMid,
-			}
+// 				SDPMLineIndex: &SDPMLineIndex,
-			done <- struct{}{}
+// 			}, payload[FROM]); err != nil {
-		default:
+// 				errCh <- err
-			logger.Println("fs is correctly linked")
+// 				return
-			done <- struct{}{}
+// 			}
-		}
+// 			done <- struct{}{}
-		done <- struct{}{}
+// 		default:
-	}()
+// 			logger.Println("fs is correctly linked")
-	select {
+// 			done <- struct{}{}
-	case <-ctx.Done():
+// 		}
-		err = ctx.Err()
+// 		done <- struct{}{}
-		return
+// 	}()
-	case <-done:
+// 	select {
-		return
+// 	case <-ctx.Done():
-	case err = <-errCh:
+// 		err = ctx.Err()
-		return
+// 		return
-	}
+// 	case <-done:
-}
+// 		return
+// 	case err = <-errCh:
+// 		return
+// 	}
+// }

webrtcGrpcMiddleware.go

@@ -1,186 +1,186 @@
 package localserver
 
-import (
+// import (
-	"context"
+// 	"context"
-	"encoding/json"
+// 	"encoding/json"
-	"strconv"
+// 	"strconv"
 
-	"github.com/pion/webrtc/v3"
+// 	"github.com/pion/webrtc/v3"
-)
+// )
 
-type GrpcRequestType string
+// type GrpcRequestType string
 
-const (
+// const (
-	PEER_CONNECTION_REQUEST GrpcRequestType = "peer_connection_request"
+// 	PEER_CONNECTION_REQUEST GrpcRequestType = "peer_connection_request"
-)
+// )
 
-const (
+// const (
-	OFFER                                     ReqType = "offer"
+// 	OFFER                                     ReqType = "offer"
-	ANSWER                                    ReqType = "answer"
+// 	ANSWER                                    ReqType = "answer"
-	COUNTER_OFFER                             ReqType = "webrtc_counter_offer"
+// 	COUNTER_OFFER                             ReqType = "webrtc_counter_offer"
-	JOIN_HOSTED_SQUAD                         ReqType = "join_hosted_squad"
+// 	JOIN_HOSTED_SQUAD                         ReqType = "join_hosted_squad"
-	HOSTED_SQUAD_ACCESS_DENIED                ReqType = "hosted_squad_access_denied"
+// 	HOSTED_SQUAD_ACCESS_DENIED                ReqType = "hosted_squad_access_denied"
-	HOSTED_SQUAD_STOP_CALL                    ReqType = "hosted_squad_stop_call"
+// 	HOSTED_SQUAD_STOP_CALL                    ReqType = "hosted_squad_stop_call"
-	HOSTED_SQUAD_ACCESS_GRANTED               ReqType = "hosted_squad_access_granted"
+// 	HOSTED_SQUAD_ACCESS_GRANTED               ReqType = "hosted_squad_access_granted"
-	LEAVE_HOSTED_SQUAD                        ReqType = "leave_hosted_squad"
+// 	LEAVE_HOSTED_SQUAD                        ReqType = "leave_hosted_squad"
-	INCOMING_MEMBER_HOSTED                    ReqType = "incoming_member_hosted"
+// 	INCOMING_MEMBER_HOSTED                    ReqType = "incoming_member_hosted"
-	LEAVING_MEMBER_HOSTED                     ReqType = "leaving_member_hosted"
+// 	LEAVING_MEMBER_HOSTED                     ReqType = "leaving_member_hosted"
-	HOSTED_SQUAD_WEBRTC_OFFER                 ReqType = "hosted_squad_offer"
+// 	HOSTED_SQUAD_WEBRTC_OFFER                 ReqType = "hosted_squad_offer"
-	HOSTED_SQUAD_WEBRTC_ANSWER                ReqType = "hosted_squad_answer"
+// 	HOSTED_SQUAD_WEBRTC_ANSWER                ReqType = "hosted_squad_answer"
-	HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_OFFER  ReqType = "hosted_squad_rennegotiation_offer"
+// 	HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_OFFER  ReqType = "hosted_squad_rennegotiation_offer"
-	HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER ReqType = "hosted_squad_rennegotiation_answer"
+// 	HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER ReqType = "hosted_squad_rennegotiation_answer"
-	HOSTED_SQUAD_WEBRTC_COUNTER_OFFER         ReqType = "hosted_squad_webrtc_counter_offer"
+// 	HOSTED_SQUAD_WEBRTC_COUNTER_OFFER         ReqType = "hosted_squad_webrtc_counter_offer"
-	HOSTED_SQUAD_WEBRTC_CANDIDATE             ReqType = "hosted_squad_webrtc_candidate"
+// 	HOSTED_SQUAD_WEBRTC_CANDIDATE             ReqType = "hosted_squad_webrtc_candidate"
-	HOSTED_SQUAD_REMOVE_VIDEO                 ReqType = "hosted_squad_remove_video"
+// 	HOSTED_SQUAD_REMOVE_VIDEO                 ReqType = "hosted_squad_remove_video"
-	GET_HOSTED_SQUAD_TRACKS                   ReqType = "hosted_squad_get_tracks"
+// 	GET_HOSTED_SQUAD_TRACKS                   ReqType = "hosted_squad_get_tracks"
-	NEW_HOSTED_SQUAD                                  = "new_hosted_squad"
+// 	NEW_HOSTED_SQUAD                                  = "new_hosted_squad"
-)
+// )
 
-type WebRTCGrpcMiddleware struct {
+// type WebRTCGrpcMiddleware struct {
-	Manager *WebRTCCallManager
+// 	Manager *WebRTCCallManager
-	stream  SignalingService_LinkClient
+// 	stream  SignalingService_LinkClient
-}
+// }
 
-func NewWebRTCGrpcMiddleware(manager *WebRTCCallManager) (webrtcGrpcMiddleware *WebRTCGrpcMiddleware) {
+// func NewWebRTCGrpcMiddleware(manager *WebRTCCallManager) (webrtcGrpcMiddleware *WebRTCGrpcMiddleware) {
-	webrtcGrpcMiddleware = &WebRTCGrpcMiddleware{
+// 	webrtcGrpcMiddleware = &WebRTCGrpcMiddleware{
-		Manager: manager,
+// 		Manager: manager,
-	}
+// 	}
-	return
+// 	return
-}
+// }
 
-func (wgm *WebRTCGrpcMiddleware) signalCandidate(to string, candidate *webrtc.ICECandidate) (err error) {
+// func (wgm *WebRTCGrpcMiddleware) signalCandidate(to string, candidate *webrtc.ICECandidate) (err error) {
-	bs, err := json.Marshal(map[string]string{
+// 	bs, err := json.Marshal(map[string]string{
-		"from":          wgm.Manager.ID,
+// 		"from":          wgm.Manager.ID,
-		"to":            to,
+// 		"to":            to,
-		"candidate":     candidate.ToJSON().Candidate,
+// 		"candidate":     candidate.ToJSON().Candidate,
-		"sdpMid":        *candidate.ToJSON().SDPMid,
+// 		"sdpMid":        *candidate.ToJSON().SDPMid,
-		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
+// 		"sdpMLineIndex": strconv.Itoa(int(*candidate.ToJSON().SDPMLineIndex)),
-	})
+// 	})
-	if err != nil {
+// 	if err != nil {
-		return
+// 		return
-	}
+// 	}
-	err = wgm.stream.Send(&SignalingMessage{
+// 	err = wgm.stream.Send(&SignalingMessage{
-		Type:    string(HOSTED_SQUAD_WEBRTC_CANDIDATE),
+// 		Type:    string(HOSTED_SQUAD_WEBRTC_CANDIDATE),
-		From:    wgm.Manager.ID,
+// 		From:    wgm.Manager.ID,
-		To:      to,
+// 		To:      to,
-		Payload: bs,
+// 		Payload: bs,
-	})
+// 	})
-	return
+// 	return
-}
+// }
 
-func (wgm *WebRTCGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage, stream SignalingService_LinkClient) (err error) {
+// func (wgm *WebRTCGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage, stream SignalingService_LinkClient) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
+// 	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
+// 	go func() {
-		defer func() {
+// 		defer func() {
-			done <- struct{}{}
+// 			done <- struct{}{}
-		}()
+// 		}()
-		var payload map[string]string
+// 		var payload map[string]string
-		if e := json.Unmarshal(req.Payload, &payload); err != nil {
+// 		if e := json.Unmarshal(req.Payload, &payload); err != nil {
-			errCh <- e
+// 			errCh <- e
-			return
+// 			return
-		}
+// 		}
-		switch req.Type {
+// 		switch req.Type {
-		case NEW_HOSTED_SQUAD:
+// 		case NEW_HOSTED_SQUAD:
-			if err := validateRequest(payload, "ID"); err != nil {
+// 			if err := validateRequest(payload, "ID"); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			logger.Println("new squad incoming")
+// 			logger.Println("new squad incoming")
-			wgm.Manager.SquadMapMux.Lock()
+// 			wgm.Manager.SquadMapMux.Lock()
-			wgm.Manager.Squads[payload["ID"]] = &Squad{
+// 			wgm.Manager.Squads[payload["ID"]] = &Squad{
-				ID:      payload["ID"],
+// 				ID:      payload["ID"],
-				Members: []string{},
+// 				Members: []string{},
-			}
+// 			}
-			wgm.Manager.SquadMapMux.Unlock()
+// 			wgm.Manager.SquadMapMux.Unlock()
-		case string(HOSTED_SQUAD_STOP_CALL):
+// 		case string(HOSTED_SQUAD_STOP_CALL):
-			logger.Println("quit squad called")
+// 			logger.Println("quit squad called")
-			if err := validateRequest(payload, "squadId"); err != nil {
+// 			if err := validateRequest(payload, "squadId"); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			wgm.Manager.HandleLeavingMember(req.GetFrom(), payload["squadId"])
+// 			wgm.Manager.HandleLeavingMember(req.GetFrom(), payload["squadId"])
-			done <- struct{}{}
+// 			done <- struct{}{}
-		case string(PEER_CONNECTION_REQUEST):
+// 		case string(PEER_CONNECTION_REQUEST):
-			logger.Println("creating offer for peer")
+// 			logger.Println("creating offer for peer")
-			if err := wgm.Manager.CreateOffer(ctx, req.GetFrom(), req.GetTo(), wgm.signalCandidate); err != nil {
+// 			if err := wgm.Manager.CreateOffer(ctx, req.GetFrom(), req.GetTo(), wgm.signalCandidate); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case string(HOSTED_SQUAD_WEBRTC_OFFER):
+// 		case string(HOSTED_SQUAD_WEBRTC_OFFER):
-			if err := validateRequest(payload, SDP, SQUAD_ID); err != nil {
+// 			if err := validateRequest(payload, SDP, SQUAD_ID); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			if err := wgm.Manager.HandleOffer(ctx, req.GetFrom(), req.GetTo(), payload, wgm.signalCandidate); err != nil {
+// 			if err := wgm.Manager.HandleOffer(ctx, req.GetFrom(), req.GetTo(), payload, wgm.signalCandidate); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case string(HOSTED_SQUAD_WEBRTC_ANSWER):
+// 		case string(HOSTED_SQUAD_WEBRTC_ANSWER):
-			if err := validateRequest(payload, SDP); err != nil {
+// 			if err := validateRequest(payload, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			if err := wgm.Manager.HandleAnswer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
+// 			if err := wgm.Manager.HandleAnswer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case string(HOSTED_SQUAD_WEBRTC_COUNTER_OFFER):
+// 		case string(HOSTED_SQUAD_WEBRTC_COUNTER_OFFER):
-			if err := wgm.Manager.HandleCounterOffer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
+// 			if err := wgm.Manager.HandleCounterOffer(ctx, req.GetFrom(), req.GetTo(), payload); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER):
+// 		case string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_ANSWER):
-			logger.Println("received negotiation answer")
+// 			logger.Println("received negotiation answer")
-			if err := validateRequest(payload, SDP); err != nil {
+// 			if err := validateRequest(payload, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			if err := wgm.Manager.HandleRennegotiationAnswer(req.GetFrom(), payload[SDP]); err != nil {
+// 			if err := wgm.Manager.HandleRennegotiationAnswer(req.GetFrom(), payload[SDP]); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_OFFER):
+// 		case string(HOSTED_SQUAD_WEBRTC_RENNEGOTIATION_OFFER):
-			logger.Println("received negotiation offer")
+// 			logger.Println("received negotiation offer")
-			if err := validateRequest(payload, SDP); err != nil {
+// 			if err := validateRequest(payload, SDP); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			if err := wgm.Manager.HandleRennegotiationOffer(req.GetFrom(), payload[SDP]); err != nil {
+// 			if err := wgm.Manager.HandleRennegotiationOffer(req.GetFrom(), payload[SDP]); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		case string(HOSTED_SQUAD_WEBRTC_CANDIDATE):
+// 		case string(HOSTED_SQUAD_WEBRTC_CANDIDATE):
-			if err := validateRequest(payload, "candidate", "sdpMLineIndex", "sdpMid"); err != nil {
+// 			if err := validateRequest(payload, "candidate", "sdpMLineIndex", "sdpMid"); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			logger.Println(payload)
+// 			logger.Println(payload)
-			i, err := strconv.Atoi(payload["sdpMLineIndex"])
+// 			i, err := strconv.Atoi(payload["sdpMLineIndex"])
-			if err != nil {
+// 			if err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-			SDPMLineIndex := uint16(i)
+// 			SDPMLineIndex := uint16(i)
-			sdpMid := payload["sdpMid"]
+// 			sdpMid := payload["sdpMid"]
-			logger.Println(sdpMid, SDPMLineIndex)
+// 			logger.Println(sdpMid, SDPMLineIndex)
-			if err := wgm.Manager.AddCandidate(&webrtc.ICECandidateInit{
+// 			if err := wgm.Manager.AddCandidate(&webrtc.ICECandidateInit{
-				Candidate:     payload["candidate"],
+// 				Candidate:     payload["candidate"],
-				SDPMid:        &sdpMid,
+// 				SDPMid:        &sdpMid,
-				SDPMLineIndex: &SDPMLineIndex,
+// 				SDPMLineIndex: &SDPMLineIndex,
-			}, req.GetFrom()); err != nil {
+// 			}, req.GetFrom()); err != nil {
-				errCh <- err
+// 				errCh <- err
-				return
+// 				return
-			}
+// 			}
-		default:
+// 		default:
-		}
+// 		}
-	}()
+// 	}()
-	select {
+// 	select {
-	case <-ctx.Done():
+// 	case <-ctx.Done():
-		err = ctx.Err()
+// 		err = ctx.Err()
-		return
+// 		return
-	case <-done:
+// 	case <-done:
-		return
+// 		return
-	case err = <-errCh:
+// 	case err = <-errCh:
-		return
+// 		return
-	}
+// 	}
-}
+// }

webrtcHttpMiddleware.go

@@ -1,66 +1,66 @@
 package localserver
 
-import (
+// import (
-	"context"
+// 	"context"
-	"encoding/json"
+// 	"encoding/json"
-	"io"
+// 	"io"
-	"net/http"
+// 	"net/http"
-)
+// )
 
-type (
+// type (
-	WebRTCHttpMiddleware struct {
+// 	WebRTCHttpMiddleware struct {
-		//menuItem *systray.MenuItem
+// 		//menuItem *systray.MenuItem
-	}
+// 	}
-)
+// )
 
-const (
+// const (
-	CREATE_HOSTED_SQUAD = "create_hosted_squad"
+// 	CREATE_HOSTED_SQUAD = "create_hosted_squad"
-)
+// )
 
-// func NewWebRTCHttpMiddleware(menuItem *systray.MenuItem) (webRTCHttpMiddleware *WebRTCHttpMiddleware) {
+// // func NewWebRTCHttpMiddleware(menuItem *systray.MenuItem) (webRTCHttpMiddleware *WebRTCHttpMiddleware) {
-// 	webRTCHttpMiddleware = &WebRTCHttpMiddleware{
+// // 	webRTCHttpMiddleware = &WebRTCHttpMiddleware{
-// 		menuItem: menuItem,
+// // 		menuItem: menuItem,
+// // 	}
+// // 	return
+// // }
+
+// func (wm *WebRTCHttpMiddleware) Process(ctx context.Context, req *http.Request) (err error) {
+// 	done, errCh := make(chan struct{}), make(chan error)
+// 	go func() {
+// 		localServerReq, err := wm.unmarshallBody(req)
+// 		if err != nil {
+// 			errCh <- err
+// 			return
+// 		}
+// 		switch localServerReq.ReqType {
+// 		case CREATE_HOSTED_SQUAD:
+
+// 		default:
+// 		}
+// 	}()
+// 	select {
+// 	case <-done:
+// 		return
+// 	case err = <-errCh:
+// 		return
+// 	case <-ctx.Done():
+// 		err = ctx.Err()
+// 		return
+// 	}
+// }
+
+// func (wm *WebRTCHttpMiddleware) unmarshallBody(req *http.Request) (localServerReq *LocalServerRequest, err error) {
+// 	reqBody, err := req.GetBody()
+// 	if err != nil {
+// 		return
+// 	}
+// 	bs, err := io.ReadAll(reqBody)
+// 	if err != nil {
+// 		return
+// 	}
+// 	err = json.Unmarshal(bs, &localServerReq)
+// 	if err != nil {
+// 		return
 // 	}
 // 	return
 // }
-
-func (wm *WebRTCHttpMiddleware) Process(ctx context.Context, req *http.Request) (err error) {
-	done, errCh := make(chan struct{}), make(chan error)
-	go func() {
-		localServerReq, err := wm.unmarshallBody(req)
-		if err != nil {
-			errCh <- err
-			return
-		}
-		switch localServerReq.ReqType {
-		case CREATE_HOSTED_SQUAD:
-
-		default:
-		}
-	}()
-	select {
-	case <-done:
-		return
-	case err = <-errCh:
-		return
-	case <-ctx.Done():
-		err = ctx.Err()
-		return
-	}
-}
-
-func (wm *WebRTCHttpMiddleware) unmarshallBody(req *http.Request) (localServerReq *LocalServerRequest, err error) {
-	reqBody, err := req.GetBody()
-	if err != nil {
-		return
-	}
-	bs, err := io.ReadAll(reqBody)
-	if err != nil {
-		return
-	}
-	err = json.Unmarshal(bs, &localServerReq)
-	if err != nil {
-		return
-	}
-	return
-}

zoneAudioChannel.go

@@ -264,7 +264,7 @@ func (ac *AudioChannel) createPeerConnection(target string, from string, peerTyp
 	config := webrtc.Configuration{
 		ICEServers: []webrtc.ICEServer{
 			{
-				URLs: []string{"stun:stun.l.google.com:19302", "stun:stunserver.org:3478"},
+				URLs: []string{"stun:stun.l.google.com:19302"},
 			},
 		},
 		SDPSemantics: webrtc.SDPSemanticsUnifiedPlanWithFallback,
@@ -459,10 +459,10 @@ func (ac *AudioChannel) createPeerConnection(target string, from string, peerTyp
 					} else if localTrack.Kind() == webrtc.RTPCodecTypeVideo {
 						logger.Println("track of wrong type")
 					}
-					go func() {
+					go func(id string) {
 						<-time.After(time.Millisecond * 500)
 						connection.negotiate(id, sendDCMessage)
-					}()
+					}(id)
 				}
 			}
 			return

zoneChatFileInstance.go

@@ -413,7 +413,7 @@ func (fs *ChatFSInstance) FileDownloadFailed(chatId, filename, userId string) (e
 // 	config := webrtc.Configuration{
 // 		ICEServers: []webrtc.ICEServer{
 // 			{
-// 				URLs: []string{"stun:stun.l.google.com:19302", "stun:stunserver.org:3478"},
+// 				URLs: []string{"stun:stun.l.google.com:19302", "stun:stun.l.google.com:19302"},
 // 			},
 // 		},
 // 	}

zoneChatsDBHandler.go

@@ -11,6 +11,7 @@ import (
 )
 
 type ChatFile struct {
+	ID         uint64
 	ChatId     string `json:"chatId"`
 	Owner      string `json:"owner"`
 	Name       string `json:"name"`

zoneChatsHandler.go

@@ -937,7 +937,7 @@ func (zch *ZoneChatsHandler[T]) AddChatMessage(userId, chatId, content string, i
 		ResponseOf: nil,
 		File:       file,
 		Tags:       make([]string, 0),
-		Date:       time.Now().Format("Mon, 02 Jan 2006 15:04:05 MST"),
+		Date:       time.Now().Format(time.RFC3339),
 	}
 	var chatType string
 	var chatMembers []string

zoneFSHandler.go

@@ -1109,8 +1109,8 @@ func (zfh *ZoneFileHandler[T]) handleZoneRequest(c context.Context, req *ZoneReq
 			Owner:        req.Payload["userId"].(string),
 			Type:         PRIVATE,
 			Folder:       true,
-			ModTime:      time.Now().Format(time.UnixDate),
+			ModTime:      time.Now().Format(time.RFC3339),
-			CreationTime: time.Now().Format(time.UnixDate),
+			CreationTime: time.Now().Format(time.RFC3339),
 			Size:         0,
 			Members: map[string]*FSEntityAccessRights{
 				req.Payload["userId"].(string): {
@@ -1148,8 +1148,8 @@ func (zfh *ZoneFileHandler[T]) handleZoneRequest(c context.Context, req *ZoneReq
 				Owner:        req.Payload["userId"].(string),
 				Type:         req.Payload["type"].(string),
 				Size:         uint64(req.Payload["size"].(float64)),
-				ModTime:      time.Now().Format(time.UnixDate),
+				ModTime:      time.Now().Format(time.RFC3339),
-				CreationTime: time.Now().Format(time.UnixDate),
+				CreationTime: time.Now().Format(time.RFC3339),
 				Folder:       false,
 				Members: map[string]*FSEntityAccessRights{
 					req.Payload["userId"].(string): {

zoneFSInstance.go

@@ -416,7 +416,7 @@ func (fs *FSInstance) FileDownloadFailed(path, filename, userId string) (err err
 // 	config := webrtc.Configuration{
 // 		ICEServers: []webrtc.ICEServer{
 // 			{
-// 				URLs: []string{"stun:stun.l.google.com:19302", "stun:stunserver.org:3478"},
+// 				URLs: []string{"stun:stun.l.google.com:19302", "stun:stun.l.google.com:19302"},
 // 			},
 // 		},
 // 		SDPSemantics: webrtc.SDPSemanticsUnifiedPlanWithFallback,

zoneGrpcMiddleware.go

@@ -3,6 +3,7 @@ package localserver
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"strconv"
 
 	"github.com/pion/webrtc/v3"
@@ -62,6 +63,7 @@ func (zm *ZoneGrpcMiddleware) signalCandidate(to string, candidate *webrtc.ICECa
 
 func (zm *ZoneGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage, stream SignalingService_LinkClient) (err error) {
 	done, errCh := make(chan struct{}), make(chan error)
+	fmt.Println("got req", req.Type, string(req.Payload))
 	go func() {
 		var payload map[string]string
 		if e := json.Unmarshal(req.Payload, &payload); e != nil {
@@ -92,16 +94,20 @@ func (zm *ZoneGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 			}
 			if err = atomicallyExecute(zm.Manager.zoneFlag, func() (err error) {
 				reqChan := make(chan *ZoneRequest)
+				if _, ok := zm.Manager.Zones[payload["zoneId"]]; !ok {
+					err = fmt.Errorf("no such zone")
+					return
+				}
 				done, e := zm.Manager.Zones[payload["zoneId"]].ZoneRequestScheduler.Schedule(reqChan)
 				go func() {
 					defer close(reqChan)
-					reqChan <- &ZoneRequest{
+					// reqChan <- &ZoneRequest{
-						ReqType: string(REMOVE_USER),
+					// 	ReqType: string(REMOVE_USER),
-						From:    payload["userId"],
+					// 	From:    payload["userId"],
-						Payload: map[string]interface{}{
+					// 	Payload: map[string]interface{}{
-							"userId": payload["userId"],
+					// 		"userId": payload["userId"],
-						},
+					// 	},
-					}
+					// }
 					reqChan <- &ZoneRequest{
 						ReqType: string(REMOVED_ZONE_AUTHORIZED_MEMBER),
 						From:    payload["userId"],
@@ -125,16 +131,13 @@ func (zm *ZoneGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 			}
 			if err = atomicallyExecute(zm.Manager.zoneFlag, func() (err error) {
 				reqChan := make(chan *ZoneRequest)
+				if _, ok := zm.Manager.Zones[payload["zoneId"]]; !ok {
+					err = fmt.Errorf("no such zone")
+					return
+				}
 				done, e := zm.Manager.Zones[payload["zoneId"]].ZoneRequestScheduler.Schedule(reqChan)
 				go func() {
 					defer close(reqChan)
-					reqChan <- &ZoneRequest{
-						ReqType: string(ADD_USER),
-						From:    payload["userId"],
-						Payload: map[string]interface{}{
-							"userId": payload["userId"],
-						},
-					}
 					reqChan <- &ZoneRequest{
 						ReqType: string(NEW_AUTHORIZED_ZONE_MEMBER),
 						From:    payload["userId"],
@@ -142,6 +145,13 @@ func (zm *ZoneGrpcMiddleware) Process(ctx context.Context, req *SignalingMessage
 							"userId": payload["userId"],
 						},
 					}
+					// reqChan <- &ZoneRequest{
+					// 	ReqType: string(ADD_USER),
+					// 	From:    payload["userId"],
+					// 	Payload: map[string]interface{}{
+					// 		"userId": payload["userId"],
+					// 	},
+					// }
 				}()
 				select {
 				case <-done:

zoneManager.go

@@ -400,7 +400,7 @@ func (zm *ZoneManager) createPeerConnection(target string, from string, zoneId s
 	config := webrtc.Configuration{
 		ICEServers: []webrtc.ICEServer{
 			{
-				URLs: []string{"stun:stun.l.google.com:19302", "stun:stunserver.org:3478"},
+				URLs: []string{"stun:stun.l.google.com:19302"},
 			},
 		},
 		SDPSemantics: webrtc.SDPSemanticsUnifiedPlan,

zoneNotificationsHandler.go

@@ -48,44 +48,6 @@ func NewZoneNotificationsHandler(_ string, zoneId string, owner string, authoriz
 	return
 }
 
-// func (znh *ZoneNotificationsHandler) sendZoneRequest(reqType string, from string, payload map[string]interface{}) {
-// 	go func() {
-// 		for _, rc := range znh.reqChans {
-// 			rc <- &ZoneRequest{
-// 				ReqType: reqType,
-// 				From:    from,
-// 				Payload: payload,
-// 			}
-// 		}
-// 	}()
-// }
-
-// func (znh *ZoneNotificationsHandler) sendDataChannelMessage(reqType string, from string, to string, payload map[string]interface{}) (<-chan struct{}, <-chan error) {
-// 	done, errCh := make(chan struct{}), make(chan error)
-// 	go func() {
-// 		if err := atomicallyExecute(znh.Flag, func() (err error) {
-// 			if _, ok := znh.DataChannels[to]; ok {
-// 				bs, jsonErr := json.Marshal(&ZoneResponse{
-// 					Type:    reqType,
-// 					From:    from,
-// 					To:      to,
-// 					Payload: payload,
-// 				})
-// 				if jsonErr != nil {
-// 					return jsonErr
-// 				}
-// 				err = znh.DataChannels[to].DataChannel.SendText(string(bs))
-// 			}
-// 			return
-// 		}); err != nil {
-// 			errCh <- err
-// 			return
-// 		}
-// 		done <- struct{}{}
-// 	}()
-// 	return done, errCh
-// }
-
 func (znh *ZoneNotificationsHandler) Init(ctx context.Context, authorizedMembers []string) (err error) {
 	//? initialization code here
 	return
@@ -169,12 +131,6 @@ func (znh *ZoneNotificationsHandler) handleZoneRequest(ctx context.Context, req
 			err = fmt.Errorf(" field recipient in payload is wrong type")
 			return
 		}
-		// recipients := []string{}
-		// for _, recipient := range req.Payload["recipients"].([]any) {
-		// 	if r, ok := recipient.(string); ok {
-		// 		recipients = append(recipients, r)
-		// 	}
-		// }
 
 		err = znh.CreateNotification(req.Payload["type"].(string), req.Payload["title"].(string), req.Payload["body"].(string), req.Payload["payload"].(string), req.Payload["isPushed"].(bool), req.Payload["recipients"].([]string)...)
 	}

zoneRequestScheduler.go

@@ -80,16 +80,16 @@ func NewZoneRequestScheduler(authorizedMembers []string, handlers ...ZoneRequest
 
 func (zrs *ZoneRequestScheduler) Schedule(reqChan <-chan *ZoneRequest) (done chan struct{}, errCh chan error) {
 	done, errCh = make(chan struct{}), make(chan error)
+	go func() {
 		for req := range reqChan {
 			go func(r *ZoneRequest) {
 				for _, publisher := range zrs.handlersPublishers {
-				go func(p chan<- *ZoneRequest) {
+					publisher <- r
-					p <- r
-				}(publisher)
 				}
 			}(req)
 		}
 		done <- struct{}{}
+	}()
 	return
 }