상징 생성 토스트 에러 해결

frontend/app/src/main/java/com/example/speechbuddy/compose/symbolcreation/SymbolCreationScreen.kt

@@ -38,6 +38,7 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
@@ -54,8 +55,8 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import com.example.speechbuddy.R
 import com.example.speechbuddy.compose.utils.ButtonUi
 import com.example.speechbuddy.compose.utils.TextFieldUi
-import com.example.speechbuddy.compose.utils.TopAppBarUi
 import com.example.speechbuddy.compose.utils.TitleUi
+import com.example.speechbuddy.compose.utils.TopAppBarUi
 import com.example.speechbuddy.domain.models.Category
 import com.example.speechbuddy.ui.models.SymbolCreationErrorType
 import com.example.speechbuddy.ui.models.SymbolCreationUiState
@@ -87,6 +88,13 @@ fun SymbolCreationScreen(
             viewModel.setPhotoInputUri(uri, context)
         }
 
+    if (creationResultMessage != null) {
+        LaunchedEffect(key1 = creationResultMessage) {
+            val toastMessage = context.resources.getString(creationResultMessage!!)
+            Toast.makeText(context, toastMessage, Toast.LENGTH_SHORT).show()
+        }
+    }
+
     Surface(
         modifier = modifier.fillMaxSize()
     ) {
@@ -158,10 +166,6 @@ fun SymbolCreationScreen(
             }
         }
     }
-    if (creationResultMessage != null) {
-        val toastMessage = stringResource(id = creationResultMessage!!)
-        Toast.makeText(context, toastMessage, Toast.LENGTH_SHORT).show()
-    }
 }
 
 @Composable

frontend/app/src/main/java/com/example/speechbuddy/data/local/SymbolDao.kt

@@ -18,7 +18,7 @@ interface SymbolDao {
     fun getSymbols(): Flow<List<SymbolEntity>>
 
     @Query("SELECT * FROM symbols ORDER BY id DESC LIMIT 1")
-    fun getLastSymbol(): Flow<List<SymbolEntity>>
+    fun getLastSymbol(): Flow<SymbolEntity>
 
     @Query("SELECT * FROM symbols WHERE isFavorite = 1")
     fun getFavoriteSymbols(): Flow<List<SymbolEntity>>

frontend/app/src/main/java/com/example/speechbuddy/repository/SymbolRepository.kt

@@ -38,21 +38,12 @@ class SymbolRepository @Inject constructor(
     private val categoryMapper: CategoryMapper
 ) {
 
-
     fun getSymbols(query: String) =
         if (query.isBlank()) getAllSymbols()
         else symbolDao.getSymbolsByQuery(query).map { symbolEntities ->
             symbolEntities.map { symbolEntity -> symbolMapper.mapToDomainModel(symbolEntity) }
         }
 
-    suspend fun deleteAllSymbols() {
-        symbolDao.deleteAllSymbols()
-    }
-
-    fun getLastSymbol() = symbolDao.getLastSymbol().map { symbolEntities ->
-        symbolEntities.first().let { symbolEntity -> symbolMapper.mapToDomainModel(symbolEntity) }
-    }
-
     fun getCategories(query: String) =
         if (query.isBlank()) getAllCategories()
         else categoryDao.getCategoriesByQuery(query).map { categoryEntities ->
@@ -116,6 +107,13 @@ class SymbolRepository @Inject constructor(
         symbolDao.updateSymbol(symbolEntity)
     }
 
+    fun getNextSymbolId() =
+        symbolDao.getLastSymbol().map { symbol -> symbol.id +1 }
+
+    fun clearAllMySymbols() {
+        /* TODO: 내가 만든 상징들 모두 삭제 */
+    }
+
     suspend fun insertSymbol(symbol: Symbol) {
         val symbolEntity = symbolMapper.mapFromDomainModel(symbol)
         symbolDao.insertSymbol(symbolEntity)
@@ -126,7 +124,12 @@ class SymbolRepository @Inject constructor(
         categoryId: Int,
         image: MultipartBody.Part
     ): Flow<Resource<MySymbol>> {
-        return mySymbolRemoteSource.createSymbolBackup(getAuthHeader(), symbolText, categoryId, image)
+        return mySymbolRemoteSource.createSymbolBackup(
+            getAuthHeader(),
+            symbolText,
+            categoryId,
+            image
+        )
             .map { response ->
                 if (response.isSuccessful && response.code() == ResponseCode.SUCCESS.value) {
                     response.body()?.let { mySymbolDto ->

frontend/app/src/main/java/com/example/speechbuddy/utils/Constants.kt

@@ -26,5 +26,7 @@ class Constants {
         const val CODE_LENGTH = 6
         const val MAXIMUM_LINES_FOR_SYMBOL_TEXT = 2
         const val MAXIMUM_SYMBOL_TEXT_LENGTH = 20
+
+        const val DEFAULT_SYMBOL_COUNT = 500
     }
 }

frontend/app/src/main/java/com/example/speechbuddy/viewmodel/SymbolCreationViewModel.kt

@@ -24,19 +24,16 @@ import com.example.speechbuddy.repository.WeightTableRepository
 import com.example.speechbuddy.ui.models.SymbolCreationError
 import com.example.speechbuddy.ui.models.SymbolCreationErrorType
 import com.example.speechbuddy.ui.models.SymbolCreationUiState
+import com.example.speechbuddy.utils.Constants.Companion.DEFAULT_SYMBOL_COUNT
 import com.example.speechbuddy.utils.Status
 import com.example.speechbuddy.utils.isValidSymbolText
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.async
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
 import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.MultipartBody
 import okhttp3.RequestBody.Companion.asRequestBody
@@ -134,6 +131,7 @@ class SymbolCreationViewModel @Inject internal constructor(
             }
         }
     }
+
     private fun clearInput() {
         symbolTextInput = ""
         categoryInput = null
@@ -223,11 +221,10 @@ class SymbolCreationViewModel @Inject internal constructor(
             }
         } else {
             // If guest-mode
-            if(sessionManager.userId.value ==-1){
+            if (sessionManager.userId.value == GUEST) {
                 viewModelScope.launch {
-                    val lastSymbol = repository.getLastSymbol().first()
-                    val symbolId = lastSymbol.id+1
-                    val fileName = "symbol_${ symbolId }"
+                    val symbolId = repository.getNextSymbolId().first()
+                    val fileName = "symbol_${symbolId}"
                     bitmapToFile(context, photoInputBitmap!!, fileName)
 
                     val symbol = Symbol(
@@ -247,13 +244,12 @@ class SymbolCreationViewModel @Inject internal constructor(
                     // Notify user that the creation was successful
                     _creationResultMessage.postValue(R.string.create_symbol_success)
                 }
-            }
-            else { // If login-mode
+            } else { // If login-mode
                 // file processing
                 val tempFileName = "symbol_${System.currentTimeMillis()}"
                 val imageFile = bitmapToFile(context, photoInputBitmap!!, tempFileName)
                 val imagePart = fileToMultipartBodyPart(imageFile, "image")
-                viewModelScope.launch() {
+                viewModelScope.launch {
                     repository.createSymbolBackup(
                         symbolText = symbolTextInput,
                         categoryId = categoryInput!!.id,
@@ -262,7 +258,7 @@ class SymbolCreationViewModel @Inject internal constructor(
                         if (resource.status == Status.SUCCESS) {
                             // Store new symbol in local db
                             val symbolId = resource.data!!.id
-                            val imageUrl = resource.data!!.imageUrl
+                            val imageUrl = resource.data.imageUrl
                             val symbol = Symbol(
                                 id = symbolId!!,
                                 text = symbolTextInput,
@@ -302,4 +298,8 @@ class SymbolCreationViewModel @Inject internal constructor(
             }
         }
     }
+
+    companion object {
+        const val GUEST = -1
+    }
 }