add ping pong

yobble/Components/TopBarView.swift

@@ -27,8 +27,14 @@ struct TopBarView: View {
         return title == "Profile"
     }
 
-    private var shouldShowConnectionStatus: Bool {
+    private var statusMessage: String? {
-        viewModel.socketState != .connected
+        if viewModel.socketState != .connected {
+            return NSLocalizedString("Подключение", comment: "")
+        }
+        if viewModel.chatLoadingState == .loading {
+            return NSLocalizedString("Загрузка чатов", comment: "")
+        }
+        return nil
     }
 
     var body: some View {
@@ -47,8 +53,8 @@ struct TopBarView: View {
                 
 //                Spacer()
                 
-                if shouldShowConnectionStatus {
+                if let statusMessage {
-                    connectionStatusView
+                    connectionStatusView(message: statusMessage)
                     Spacer()
                 } else if isHomeTab{
                     Text("Yobble")
@@ -136,11 +142,11 @@ struct TopBarView: View {
 }
 
 private extension TopBarView {
-    var connectionStatusView: some View {
+    func connectionStatusView(message: String) -> some View {
         HStack(spacing: 8) {
             ProgressView()
                 .progressViewStyle(.circular)
-            Text(NSLocalizedString("Подключение", comment: ""))
+            Text(message)
                 .font(.headline)
                 .foregroundColor(.primary)
         }

yobble/Resources/Localizable.xcstrings

@@ -430,6 +430,16 @@
     },
     "Загрузка сообщений…" : {
 
+    },
+    "Загрузка чатов" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Loading chats"
+          }
+        }
+      }
     },
     "Загрузка..." : {
       "localizations" : {

yobble/Services/SocketService.swift

@@ -30,11 +30,17 @@ final class SocketService {
     }
 
     private let heartbeatInterval: TimeInterval = 10
+    private let heartbeatTimeout: TimeInterval = 5
+    private let maxHeartbeatMissCount = 2
+    private let heartbeatEventName = AppConfig.SOCKET_HEARTBEAT_EVENT
 
     #if canImport(SocketIO)
     private var manager: SocketManager?
     private var socket: SocketIOClient?
     private var heartbeatTimer: DispatchSourceTimer?
+    private var heartbeatAckInFlight = false
+    private var lastHeartbeatSentAt: Date?
+    private var consecutiveHeartbeatMisses = 0
     #endif
 
     private init() {}
@@ -150,13 +156,13 @@ final class SocketService {
 
         socket.on(clientEvent: .connect) { _, _ in
             if AppConfig.DEBUG { print("[SocketService] Connected") }
-            self.updateConnectionState(.connected)
+            self.handleHeartbeatSuccess()
         }
 
         socket.on(clientEvent: .statusChange) { data, _ in
             guard let rawStatus = data.first as? SocketIOStatus else { return }
             if rawStatus == .connected {
-                self.updateConnectionState(.connected)
+                self.handleHeartbeatSuccess()
             } else if rawStatus == .connecting {
                 self.updateConnectionState(.connecting)
             } else {
@@ -184,6 +190,14 @@ final class SocketService {
             self.updateConnectionState(.disconnected)
         }
 
+        socket.on("pong") { [weak self] _, _ in
+            self?.handleHeartbeatSuccess()
+        }
+
+        socket.on("message") { [weak self] data, _ in
+            self?.handleMessageEvent(data)
+        }
+
         self.manager = manager
         self.socket = socket
     }
@@ -204,23 +218,7 @@ final class SocketService {
         timer.schedule(deadline: .now() + heartbeatInterval, repeating: heartbeatInterval)
         timer.setEventHandler { [weak self] in
             guard let self else { return }
-
+            self.performHeartbeatCheck()
-            guard let socket = self.socket else {
-                self.updateConnectionState(.disconnected)
-                return
-            }
-
-            switch socket.status {
-            case .connected:
-                self.updateConnectionState(.connected)
-            case .connecting:
-                self.updateConnectionState(.connecting)
-            case .disconnected, .notConnected:
-                self.updateConnectionState(.connecting)
-                socket.connect(withPayload: self.currentAuthPayload)
-            @unknown default:
-                self.updateConnectionState(.connecting)
-            }
         }
         heartbeatTimer = timer
         timer.resume()
@@ -229,6 +227,94 @@ final class SocketService {
     private func stopHeartbeat() {
         heartbeatTimer?.cancel()
         heartbeatTimer = nil
+        heartbeatAckInFlight = false
+        consecutiveHeartbeatMisses = 0
+        lastHeartbeatSentAt = nil
+    }
+
+    private func performHeartbeatCheck() {
+        guard let socket = socket else {
+            updateConnectionState(.disconnected)
+            return
+        }
+
+        switch socket.status {
+        case .connected:
+            sendHeartbeat(on: socket)
+        case .connecting:
+            updateConnectionState(.connecting)
+        case .disconnected, .notConnected:
+            updateConnectionState(.connecting)
+            socket.connect(withPayload: currentAuthPayload)
+        @unknown default:
+            updateConnectionState(.connecting)
+        }
+    }
+
+    private func sendHeartbeat(on socket: SocketIOClient) {
+        if heartbeatAckInFlight {
+            if let lastSentAt = lastHeartbeatSentAt,
+               Date().timeIntervalSince(lastSentAt) >= heartbeatTimeout {
+                heartbeatAckInFlight = false
+                handleMissedHeartbeat(for: socket)
+            } else {
+                return
+            }
+        }
+
+        heartbeatAckInFlight = true
+        lastHeartbeatSentAt = Date()
+
+        socket.emit(heartbeatEventName, ["data": "ping"])
+    }
+
+    private func handleMessageEvent(_ data: [Any]) {
+        guard let payload = data.first else { return }
+
+        let messageText: String?
+
+        if let dictionary = payload as? [String: Any] {
+            if let nestedData = dictionary["data"] as? [String: Any],
+               let nestedMessage = nestedData["message"] as? String {
+                messageText = nestedMessage
+            } else {
+                messageText = dictionary["message"] as? String
+            }
+        } else if let stringValue = payload as? String {
+            messageText = stringValue
+        } else {
+            messageText = nil
+        }
+
+        guard let message = messageText?.trimmingCharacters(in: .whitespacesAndNewlines).lowercased() else {
+            return
+        }
+
+        if message == "pong" {
+            handleHeartbeatSuccess()
+        }
+    }
+
+    private func handleHeartbeatSuccess() {
+        consecutiveHeartbeatMisses = 0
+        heartbeatAckInFlight = false
+        lastHeartbeatSentAt = nil
+        updateConnectionState(.connected)
+    }
+
+    private func handleMissedHeartbeat(for socket: SocketIOClient) {
+        consecutiveHeartbeatMisses += 1
+        heartbeatAckInFlight = false
+        lastHeartbeatSentAt = nil
+        updateConnectionState(.connecting)
+        guard consecutiveHeartbeatMisses > maxHeartbeatMissCount else {
+            return
+        }
+
+        consecutiveHeartbeatMisses = 0
+        updateConnectionState(.connecting)
+        socket.disconnect()
+        socket.connect(withPayload: currentAuthPayload)
     }
     #else
     private func disconnectInternal() { }

yobble/ViewModels/LoginViewModel.swift

@@ -17,11 +17,17 @@ class LoginViewModel: ObservableObject {
     @Published var errorMessage: String = ""
     @Published var isLoggedIn: Bool = false
     @Published var socketState: SocketService.ConnectionState
+    @Published var chatLoadingState: ChatLoadingState = .idle
 
     private let authService = AuthService()
     private let socketService = SocketService.shared
     private var cancellables = Set<AnyCancellable>()
 
+    enum ChatLoadingState: Equatable {
+        case idle
+        case loading
+    }
+
     private enum DefaultsKeys {
         static let currentUser = "currentUser"
         static let userId = "userId"
@@ -30,6 +36,7 @@ class LoginViewModel: ObservableObject {
     init() {
         socketState = socketService.currentConnectionState
         observeSocketState()
+        observeChatsReload()
 //        loadStoredUser()
 
         // Запускаем автологин
@@ -40,11 +47,35 @@ class LoginViewModel: ObservableObject {
         socketService.connectionStatePublisher
             .receive(on: DispatchQueue.main)
             .sink { [weak self] state in
-                self?.socketState = state
+                self?.handleSocketStateChange(state)
             }
             .store(in: &cancellables)
     }
 
+    private func observeChatsReload() {
+        NotificationCenter.default.publisher(for: .chatsReloadCompleted)
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] _ in
+                self?.chatLoadingState = .idle
+            }
+            .store(in: &cancellables)
+    }
+
+    private func handleSocketStateChange(_ state: SocketService.ConnectionState) {
+        socketState = state
+        if state == .connected {
+            triggerChatsReloadIfNeeded()
+        } else {
+            chatLoadingState = .idle
+        }
+    }
+
+    private func triggerChatsReloadIfNeeded() {
+        guard chatLoadingState != .loading else { return }
+        chatLoadingState = .loading
+        NotificationCenter.default.post(name: .chatsShouldRefresh, object: nil)
+    }
+
     func autoLogin() {
         authService.autoLogin { [weak self] success, error in
             DispatchQueue.main.async {

yobble/ViewModels/PrivateChatsViewModel.swift

@@ -30,6 +30,9 @@ final class PrivateChatsViewModel: ObservableObject {
         chatService.fetchPrivateChats(offset: 0, limit: pageSize) { [weak self] result in
             guard let self else { return }
             self.isInitialLoading = false
+            defer {
+                NotificationCenter.default.post(name: .chatsReloadCompleted, object: nil)
+            }
 
             switch result {
             case .success(let data):

yobble/Views/Tab/ChatsTab.swift

@@ -49,6 +49,9 @@ struct ChatsTab: View {
             .onReceive(NotificationCenter.default.publisher(for: .debugRefreshChats)) { _ in
                 viewModel.refresh()
             }
+            .onReceive(NotificationCenter.default.publisher(for: .chatsShouldRefresh)) { _ in
+                viewModel.refresh()
+            }
             .onChange(of: searchText) { newValue in
                 handleSearchQueryChange(newValue)
                 let trimmed = newValue.trimmingCharacters(in: .whitespacesAndNewlines)
@@ -1146,4 +1149,6 @@ struct ChatsTab_Previews: PreviewProvider {
 
 extension Notification.Name {
     static let debugRefreshChats = Notification.Name("debugRefreshChats")
+    static let chatsShouldRefresh = Notification.Name("chatsShouldRefresh")
+    static let chatsReloadCompleted = Notification.Name("chatsReloadCompleted")
 }

yobble/config.swift

@@ -6,6 +6,7 @@ struct AppConfig {
     static let PROTOCOL = "https"
     static let API_SERVER = "\(PROTOCOL)://api.yobble.org"
     static let SOCKET_PATH = "/socket.io/"
+    static let SOCKET_HEARTBEAT_EVENT = "client_message"
 
     static let USER_AGENT = "yobble ios"
     static let APP_BUILD = "appstore" // appstore / freestore