auth to server-V47

app/src/main/java/com/example/login_v3/data/repository/basic/Personal_Profile_Repository.kt

@@ -3,6 +3,7 @@ package com.example.login_v3.data.repository.basic
 import com.example.login_v3.data.api.TecnologiaApi
 import com.example.login_v3.data.api.api_class.UserProfile
 import com.example.login_v3.data.api.api_class.UserProfileUpdateRequest
+import okhttp3.MultipartBody
 import javax.inject.Inject
 
 class PersonalProfileRepository @Inject constructor(
@@ -37,4 +38,18 @@ class PersonalProfileRepository @Inject constructor(
             Result.failure(e)
         }
     }
+
+    // 3. 上傳頭像圖片 (POST)
+    suspend fun uploadAvatar(avatarPart: MultipartBody.Part): Result<Unit> {
+        return try {
+            val response = api.uploadAvatar(avatarPart)
+            if (response.isSuccessful) {
+                Result.success(Unit)
+            } else {
+                Result.failure(Exception("圖片上傳失敗: ${response.code()}"))
+            }
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
 }

app/src/main/java/com/example/login_v3/home/setting/setting_detail_page/detail_UI/setting_Profile_Page.kt

@@ -41,6 +41,7 @@ import androidx.compose.ui.draw.blur
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
@@ -93,13 +94,13 @@ fun Loaded_setting_profile_page(
 
 
     //image chooser
+    val context = LocalContext.current // 務必獲取 Context，uploadAvatar 需要它來解析 Uri
     val launcher = rememberLauncherForActivityResult(
         contract = ActivityResultContracts.PickVisualMedia()
     ) { uri ->
-        // 2. 當使用者選完照片後，會回傳一個 Uri
         if (uri != null) {
-            // 直接把本地 Uri 轉成字串丟進去 (僅限本地 Demo，重整 App 後會失效)
+            // ✅ 修正：呼叫上傳圖片的函式，而不是更新網址字串的函式
-            viewModel.updateProfile(avatarUrl = uri.toString())
+            viewModel.uploadAvatar(context, uri)
         }
     }
 

app/src/main/java/com/example/login_v3/home/setting/setting_detail_page/viewmodel/Profile_Viewmodel.kt

@@ -1,5 +1,7 @@
 package com.example.login_v3.home.setting.setting_detail_page.viewmodel
 
+import android.content.Context
+import android.net.Uri
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.example.login_v3.data.api.api_class.UserProfile
@@ -10,6 +12,9 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.MultipartBody
+import okhttp3.RequestBody.Companion.toRequestBody
 import javax.inject.Inject
 
 // 定義 UI 狀態
@@ -75,4 +80,39 @@ class PersonalProfileViewModel @Inject constructor(
         }
     }
 
+    // 在 ViewModel 類別內新增此 function
+    fun uploadAvatar(context: Context, uri: Uri) {
+        viewModelScope.launch {
+            // 如果你想要在上傳時讓 UI 顯示 Loading，可以在這開啟
+            // _uiState.value = ProfileUiState.Loading
+
+            try {
+                // 1. 從 Uri 取得 InputStream 並讀取 Bytes
+                val inputStream = context.contentResolver.openInputStream(uri)
+                val bytes = inputStream?.use { it.readBytes() } ?: return@launch
+
+                // 2. 封裝成 RequestBody (指定為圖片格式)
+                val requestFile = bytes.toRequestBody("image/*".toMediaTypeOrNull())
+
+                // 3. 建立 MultipartBody.Part
+                // 注意："avatar" 必須跟後端 @Part("avatar") 裡面的名稱一模一樣
+                val body = MultipartBody.Part.createFormData("avatar", "avatar.jpg", requestFile)
+
+                // 4. 呼叫 Repository
+                repository.uploadAvatar(body)
+                    .onSuccess {
+                        // 上傳成功後，最保險的做法是重新 fetch 一次個人資料
+                        // 這樣 UI 上的頭像網址才會更新成後端最新儲存的網址
+                        fetchProfile()
+                    }
+                    .onFailure { e ->
+                        // 處理錯誤，例如發送一個錯誤訊息給 UI
+                        _uiState.value = ProfileUiState.Error(e.localizedMessage ?: "上傳失敗")
+                    }
+            } catch (e: Exception) {
+                _uiState.value = ProfileUiState.Error("讀取檔案出錯: ${e.message}")
+            }
+        }
+    }
+
 }