From a50881a3e036a107e291b7235371f7ab11e652e7 Mon Sep 17 00:00:00 2001
From: Eric85710 <ericchen87887@gmail.com>
Date: Mon, 8 Jun 2026 10:52:49 +0800
Subject: [PATCH] dm-99

---
 .../example/login_v3/data/di/AppDatabase.kt   |  2 +
 .../example/login_v3/data/di/TypeConverter.kt | 27 +++++++++++++
 .../data/repository/dm/DM_Basic_Repository.kt | 39 ++++---------------
 .../Message/UI/Detail/Message_Messaging.kt    |  3 --
 .../Message/ViewModel/Detail/Message_Cache.kt |  4 +-
 .../Detail/Message_Messaging_ViewModel.kt     | 12 ------
 6 files changed, 40 insertions(+), 47 deletions(-)
 create mode 100644 app/src/main/java/com/example/login_v3/data/di/TypeConverter.kt

diff --git a/app/src/main/java/com/example/login_v3/data/di/AppDatabase.kt b/app/src/main/java/com/example/login_v3/data/di/AppDatabase.kt
index e3c95bc..5fe81ab 100644
--- a/app/src/main/java/com/example/login_v3/data/di/AppDatabase.kt
+++ b/app/src/main/java/com/example/login_v3/data/di/AppDatabase.kt
@@ -2,10 +2,12 @@ package com.example.login_v3.data.di
 
 import androidx.room.Database
 import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
 import com.example.login_v3.home.Message.ViewModel.Detail.MessageDao
 import com.example.login_v3.home.Message.ViewModel.Detail.MessageEntity
 
 @Database(entities = [MessageEntity::class], version = 1, exportSchema = false)
+@TypeConverters(RoomConverters::class)
 abstract class AppDatabase : RoomDatabase() {
     abstract fun messageDao(): MessageDao
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/login_v3/data/di/TypeConverter.kt b/app/src/main/java/com/example/login_v3/data/di/TypeConverter.kt
new file mode 100644
index 0000000..0cd3f5a
--- /dev/null
+++ b/app/src/main/java/com/example/login_v3/data/di/TypeConverter.kt
@@ -0,0 +1,27 @@
+package com.example.login_v3.data.di
+
+import androidx.room.TypeConverter
+import com.example.login_v3.data.api.api_class.Reaction
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.Types
+
+class RoomConverters {
+    private val moshi = Moshi.Builder().build()
+    private val reactionListType = Types.newParameterizedType(List::class.java, Reaction::class.java)
+    private val adapter = moshi.adapter<List<Reaction>>(reactionListType)
+
+    @TypeConverter
+    fun fromReactionList(reactions: List<Reaction>?): String? {
+        return adapter.toJson(reactions ?: emptyList())
+    }
+
+    @TypeConverter
+    fun toReactionList(json: String?): List<Reaction>? {
+        if (json.isNullOrBlank()) return emptyList()
+        return try {
+            adapter.fromJson(json)
+        } catch (e: Exception) {
+            emptyList()
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic_Repository.kt b/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic_Repository.kt
index b783cc5..00f75dc 100644
--- a/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic_Repository.kt
+++ b/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic_Repository.kt
@@ -61,7 +61,8 @@ class ChatRoomsRepository @Inject constructor(
                     isEdited = entity.isEdited,
                     isDeleted = entity.isDeleted,
                     replyToId = entity.replyToId,
-                    status = entity.status          // 👈 把 Room 儲存的狀態倒出來給 UI
+                    status = entity.status,          // 👈 把 Room 儲存的狀態倒出來給 UI
+                    reactions = entity.reactions
                 )
             }
 
@@ -94,7 +95,8 @@ class ChatRoomsRepository @Inject constructor(
                             isEdited = networkMessage.isEdited,
                             isDeleted = networkMessage.isDeleted,
                             replyToId = networkMessage.replyToId,
-                            status = MessageStatus.SUCCESS // 後端來的都是真的發送成功的
+                            status = MessageStatus.SUCCESS,
+                            reactions = networkMessage.reactions
                         )
                         messageDao.insertOrUpdate(entity)
                     }
@@ -125,7 +127,8 @@ class ChatRoomsRepository @Inject constructor(
             isEdited = false,
             isDeleted = false,
             replyToId = replyToId,
-            status = MessageStatus.SENDING // 👈 畫面馬上呈現半透明淡灰色！
+            status = MessageStatus.SENDING,
+            reactions = emptyList()
         )
 
         messageDao.insertOrUpdate(tempMessageEntity)
@@ -150,7 +153,8 @@ class ChatRoomsRepository @Inject constructor(
                         isEdited = body.isEdited,
                         isDeleted = body.isDeleted,
                         replyToId = body.replyToId,
-                        status = MessageStatus.SUCCESS
+                        status = MessageStatus.SUCCESS,
+                        reactions = body.reactions
                     )
                     messageDao.insertOrUpdate(successEntity)
                     Result.success(Unit)
@@ -317,33 +321,6 @@ class ChatRoomsRepository @Inject constructor(
         }
     }
 
-    // 取得點擊特定訊息中某個 Emoji 的使用者清單
-    suspend fun getMessageReactionUsers(
-        roomId: String,
-        messageId: String,
-        emoji: String
-    ): Result<MessageReactionUsersResponse> {
-        return try {
-            // 呼叫 API
-            val response = api.getMessageReactionUsers(roomId, messageId, emoji)
-
-            if (response.isSuccessful) {
-                val body = response.body()
-                if (body != null) {
-                    Result.success(body)
-                } else {
-                    Result.failure(Exception("回應成功但回應身體為空 (Empty response body)"))
-                }
-            } else {
-                val errorMsg = response.errorBody()?.string() ?: "未知錯誤"
-                Result.failure(Exception("取得反應使用者失敗，錯誤碼: ${response.code()}, 訊息: $errorMsg"))
-            }
-        } catch (e: Exception) {
-            // 捕捉網路斷線等異常狀況
-            Result.failure(e)
-        }
-    }
-
     // 新增訊息的 Emoji 反應
     suspend fun addMessageReaction(
         roomId: String,
diff --git a/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt b/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt
index 8e20409..8ad35f2 100644
--- a/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt
+++ b/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt
@@ -113,9 +113,6 @@ fun MessageMessaging(
     //reply function
     val replyingMessage by viewModel.replyingMessage.collectAsStateWithLifecycle()
 
-    // 💡 1. 取得 ViewModel 裡的 Reaction 狀態
-    val reactionState by viewModel.reactionUsersState.collectAsStateWithLifecycle()
-
     //message that selected
     val actionMessage by viewModel.actionMessage.collectAsStateWithLifecycle()
 
diff --git a/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Cache.kt b/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Cache.kt
index b02bff5..1f65148 100644
--- a/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Cache.kt
+++ b/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Cache.kt
@@ -7,6 +7,7 @@ import androidx.room.OnConflictStrategy
 import androidx.room.PrimaryKey
 import kotlinx.coroutines.flow.Flow
 import androidx.room.Query
+import com.example.login_v3.data.api.api_class.Reaction
 
 enum class MessageStatus { SENDING, SUCCESS, FAILED }
 
@@ -21,7 +22,8 @@ data class MessageEntity(
     val isEdited: Boolean,   // 👈 新增
     val isDeleted: Boolean,  // 👈 新增
     val replyToId: String?,  // 👈 新增
-    val status: MessageStatus // 👈 樂觀更新狀態控制 (SENDING, SUCCESS, FAILED)
+    val status: MessageStatus, // 👈 樂觀更新狀態控制 (SENDING, SUCCESS, FAILED)
+    val reactions: List<Reaction>?
 )
 
 @Dao
diff --git a/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Messaging_ViewModel.kt b/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Messaging_ViewModel.kt
index 987be4a..4897745 100644
--- a/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Messaging_ViewModel.kt
+++ b/app/src/main/java/com/example/login_v3/home/Message/ViewModel/Detail/Message_Messaging_ViewModel.kt
@@ -223,17 +223,6 @@ class ChatViewModel @Inject constructor(
         }
     }
 
-    private val _reactionUsersState = MutableStateFlow<ReactionUsersState>(ReactionUsersState.Idle)
-    val reactionUsersState: StateFlow<ReactionUsersState> = _reactionUsersState.asStateFlow()
-
-    fun loadMessageReactionUsers(roomId: String, messageId: String, emoji: String) {
-        viewModelScope.launch {
-            _reactionUsersState.value = ReactionUsersState.Loading
-            repository.getMessageReactionUsers(roomId, messageId, emoji)
-                .onSuccess { response -> _reactionUsersState.value = ReactionUsersState.Success(response.users) }
-                .onFailure { error -> _reactionUsersState.value = ReactionUsersState.Error(error.message ?: "無法取得按讚名單") }
-        }
-    }
 
     fun addMessageReaction(roomId: String, messageId: String, emoji: String) {
         viewModelScope.launch {
@@ -255,6 +244,5 @@ class ChatViewModel @Inject constructor(
     }
 
     fun resetDeleteMessageState() { _deleteMessageState.value = DeleteMessageState.Idle }
-    fun resetReactionUsersState() { _reactionUsersState.value = ReactionUsersState.Idle }
     fun resetSendMessageState() { _sendMessageState.value = SendMessageState.Idle }
 }
\ No newline at end of file