fix(live-room): 종료 경합의 중복 재조회와 오류 토스트를 막는다

app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomActivity.kt

@@ -170,6 +170,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
     private var isSpeakerMute = false
     private var isMicrophoneMute = false
     private var isSpeaker = false
+    private var hasKnownHostAbsence = false
 
     private var isCapturePrivacyMuted = false
     private var isScreenRecordingActive = false
@@ -2304,13 +2305,26 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
         override fun onUserOffline(uid: Int, reason: Int) {
             super.onUserOffline(uid, reason)
             Logger.e("onUserOffline - uid: $uid")
-            if (viewModel.isEqualToHostId(uid)) {
+
+            val offlineAction = resolveLiveRoomOfflineAction(
+                isHostOffline = viewModel.isEqualToHostId(uid),
+                hasKnownHostAbsence = hasKnownHostAbsence
+            )
+
+            if (offlineAction.shouldMarkHostAbsence) {
+                hasKnownHostAbsence = true
+            }
+
+            if (offlineAction.shouldFinishRoom) {
                 handler.post {
                     showToast(getString(R.string.screen_live_room_closed))
                     finish()
                 }
-            } else {
-                viewModel.getRoomInfo(roomId)
+                return
+            }
+
+            if (offlineAction.shouldRefreshRoomInfo) {
+                viewModel.getRoomInfo(roomId, suppressRoomNotFoundError = true)
                 speakerListAdapter.muteSpeakers.remove(uid)
             }
         }
@@ -2669,7 +2683,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                 }
             } else if (eventType == RtmConstants.RtmPresenceEventType.REMOTE_LEAVE) {
                 if (!viewModel.isEqualToHostId(memberId.toInt())) {
-                    viewModel.getRoomInfo(roomId)
+                    viewModel.getRoomInfo(roomId, suppressRoomNotFoundError = true)
                 }
             }
         }

app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomOfflineActionPolicy.kt

@@ -0,0 +1,34 @@
+package kr.co.vividnext.sodalive.live.room
+
+internal data class LiveRoomOfflineAction(
+    val shouldMarkHostAbsence: Boolean,
+    val shouldFinishRoom: Boolean,
+    val shouldRefreshRoomInfo: Boolean
+)
+
+internal fun resolveLiveRoomOfflineAction(
+    isHostOffline: Boolean,
+    hasKnownHostAbsence: Boolean
+): LiveRoomOfflineAction {
+    if (hasKnownHostAbsence) {
+        return LiveRoomOfflineAction(
+            shouldMarkHostAbsence = false,
+            shouldFinishRoom = false,
+            shouldRefreshRoomInfo = false
+        )
+    }
+
+    if (isHostOffline) {
+        return LiveRoomOfflineAction(
+            shouldMarkHostAbsence = true,
+            shouldFinishRoom = true,
+            shouldRefreshRoomInfo = false
+        )
+    }
+
+    return LiveRoomOfflineAction(
+        shouldMarkHostAbsence = false,
+        shouldFinishRoom = false,
+        shouldRefreshRoomInfo = true
+    )
+}

app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomRoomInfoErrorPolicy.kt

@@ -0,0 +1,24 @@
+package kr.co.vividnext.sodalive.live.room
+
+private val ignorableLiveRoomNotFoundMessages = setOf(
+    "라이브 정보가 없습니다.",
+    "해당하는 라이브의 정보가 없습니다.",
+    "Live session information not found.",
+    "該当するライブの情報がありません。"
+)
+
+internal fun shouldSuppressLiveRoomInfoError(
+    message: String?,
+    suppressRoomNotFoundError: Boolean
+): Boolean {
+    if (!suppressRoomNotFoundError) {
+        return false
+    }
+
+    val normalizedMessage = message?.trim().orEmpty()
+    if (normalizedMessage.isBlank()) {
+        return false
+    }
+
+    return normalizedMessage in ignorableLiveRoomNotFoundMessages
+}

app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomViewModel.kt

@@ -232,7 +232,12 @@ class LiveRoomViewModel(
         )
     }
 
-    fun getRoomInfo(roomId: Long, userId: Int = 0, onSuccess: (String) -> Unit = {}) {
+    fun getRoomInfo(
+        roomId: Long,
+        userId: Int = 0,
+        suppressRoomNotFoundError: Boolean = false,
+        onSuccess: (String) -> Unit = {}
+    ) {
         compositeDisposable.add(
             repository.getRoomInfo(roomId, "Bearer ${SharedPreferenceManager.token}")
                 .subscribeOn(Schedulers.io())
@@ -266,6 +271,10 @@ class LiveRoomViewModel(
                                 onSuccess(nickname)
                             }
                         } else {
+                            if (shouldSuppressLiveRoomInfoError(it.message, suppressRoomNotFoundError)) {
+                                return@subscribe
+                            }
+
                             if (it.message != null) {
                                 _toastLiveData.postValue(it.message)
                             } else {