fix(dm): WebSocket 연결 완료 시점을 보정한다

app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/dm/DmChatRoomViewModel.kt

@@ -42,10 +42,12 @@ class DmChatRoomViewModel(
     private var nextCursor: Long? = null
     private var isLoadingOlder: Boolean = false
     private var isSending: Boolean = false
+    private var isRealtimeJoining: Boolean = false
     private var isRealtimeConnected: Boolean = false
     private var shouldReconnectRealtime: Boolean = false
     private var currentAuthToken: String = ""
     private var currentRealtimeToken: String = ""
+    private var currentRealtimeRoomId: Long = 0L
     private var reconnectDisposable: Disposable? = null
     private var localMessageSequence: Long = 0L
     private val mainHandler = Handler(Looper.getMainLooper())
@@ -179,10 +181,14 @@ class DmChatRoomViewModel(
 
     private fun connectRealtime(token: String) {
         val roomId = currentRoomId
-        if (roomId <= 0L || isRealtimeConnected || !shouldReconnectRealtime && currentRealtimeToken.isNotEmpty()) return
+        if (roomId <= 0L || isRealtimeConnected && currentRealtimeRoomId == roomId) return
+        if (isRealtimeJoining && currentRealtimeRoomId == roomId) return
+        if (!shouldReconnectRealtime && currentRealtimeToken.isNotEmpty() && currentRealtimeRoomId == roomId) return
 
         currentRealtimeToken = token
-        isRealtimeConnected = true
+        currentRealtimeRoomId = roomId
+        isRealtimeJoining = true
+        isRealtimeConnected = false
         shouldReconnectRealtime = true
         reconnectDisposable?.dispose()
         reconnectDisposable = null
@@ -195,6 +201,7 @@ class DmChatRoomViewModel(
 
                 override fun onFailure(throwable: Throwable) {
                     scheduleRealtimeCallback {
+                        isRealtimeJoining = false
                         isRealtimeConnected = false
                         throwable.message?.let { Logger.e(it) }
                         scheduleRealtimeReconnect()
@@ -211,6 +218,8 @@ class DmChatRoomViewModel(
 
         shouldReconnectRealtime = false
         currentRealtimeToken = ""
+        currentRealtimeRoomId = 0L
+        isRealtimeJoining = false
         isRealtimeConnected = false
         reconnectDisposable?.dispose()
         reconnectDisposable = null
@@ -247,6 +256,9 @@ class DmChatRoomViewModel(
         mainHandler.removeCallbacksAndMessages(null)
         reconnectDisposable?.dispose()
         reconnectDisposable = null
+        currentRealtimeRoomId = 0L
+        isRealtimeJoining = false
+        isRealtimeConnected = false
         repository.closeSocket()
         super.onCleared()
     }
@@ -329,7 +341,11 @@ class DmChatRoomViewModel(
 
     private fun handleSocketEvent(event: DmChatSocketEvent, token: String) {
         when (event) {
-            DmChatSocketEvent.Joined -> syncLatestMessagesAfterReconnect(token = token)
+            DmChatSocketEvent.Joined -> {
+                isRealtimeJoining = false
+                isRealtimeConnected = true
+                syncLatestMessagesAfterReconnect(token = token)
+            }
             is DmChatSocketEvent.Message -> onRealtimeMessage(event.message)
             is DmChatSocketEvent.SendAck -> handleSendAck(event.requestId, event.message)
             is DmChatSocketEvent.Error -> event.requestId?.let { markLocalMessageFailed(it) }