fix(#7): emit snackbar as resource id, resolve with stringResource in UI

Drop the Context injection from the ScreenModel. Emit a sealed
ImportSnackbarMessage carrying either a @StringRes id or a dynamic
text (for the error.message case where the bank importer surfaces a
useful 'BRI import not yet implemented' string). The screen resolves
resource ids via stringResource() in Composable scope and shows the
snackbar; the original error.message info is preserved via the
Dynamic variant instead of being dropped.

app/src/main/java/dev/achmad/ledgerr/ui/screens/import_bank_statement/ImportBankStatementScreen.kt

@@ -86,9 +86,22 @@ object ImportBankStatementScreen : Screen {
             pendingImporter = null
         }
 
+        val importFailedText = stringResource(R.string.import_failed)
+        val importNoTransactionsText = stringResource(R.string.import_no_transactions)
+        val importNoItemsSelectedText = stringResource(R.string.import_no_items_selected)
+
         LaunchedEffect(Unit) {
             screenModel.snackbar.collect { message ->
-                snackbarHostState.showSnackbar(message)
+                val text = when (message) {
+                    is ImportSnackbarMessage.Resource -> when (message.id) {
+                        R.string.import_failed -> importFailedText
+                        R.string.import_no_transactions -> importNoTransactionsText
+                        R.string.import_no_items_selected -> importNoItemsSelectedText
+                        else -> null
+                    }
+                    is ImportSnackbarMessage.Dynamic -> message.text
+                }
+                text?.let { snackbarHostState.showSnackbar(it) }
             }
         }
 

app/src/main/java/dev/achmad/ledgerr/ui/screens/import_bank_statement/ImportBankStatementScreenModel.kt

@@ -1,7 +1,7 @@
 package dev.achmad.ledgerr.ui.screens.import_bank_statement
 
-import android.content.Context
 import android.net.Uri
+import androidx.annotation.StringRes
 import cafe.adriel.voyager.core.model.ScreenModel
 import cafe.adriel.voyager.core.model.screenModelScope
 import cafe.adriel.voyager.navigator.Navigator
@@ -36,18 +36,22 @@ sealed interface ImportState {
     ) : ImportState
 }
 
+sealed interface ImportSnackbarMessage {
+    data class Resource(@StringRes val id: Int) : ImportSnackbarMessage
+    data class Dynamic(val text: String) : ImportSnackbarMessage
+}
+
 class ImportBankStatementScreenModel(
     private val importers: List<BankStatementImporter> = inject(),
     private val getCategories: GetCategories = inject(),
     private val insertExpenses: InsertExpenses = inject(),
-    private val context: Context = inject(),
 ) : ScreenModel {
 
     private val _state = MutableStateFlow<ImportState>(ImportState.BankPicker(importers))
     val state: StateFlow<ImportState> = _state.asStateFlow()
 
-    private val _snackbar = MutableSharedFlow<String>(extraBufferCapacity = 1)
+    private val _snackbar = MutableSharedFlow<ImportSnackbarMessage>(extraBufferCapacity = 1)
-    val snackbar: SharedFlow<String> = _snackbar.asSharedFlow()
+    val snackbar: SharedFlow<ImportSnackbarMessage> = _snackbar.asSharedFlow()
 
     val categories: StateFlow<List<Category>> = getCategories.subscribeAll()
         .flowOn(Dispatchers.IO)
@@ -69,7 +73,7 @@ class ImportBankStatementScreenModel(
                 .onSuccess { rows ->
                     if (rows.isEmpty()) {
                         _state.value = ImportState.BankPicker(importers)
-                        _snackbar.tryEmit(context.getString(R.string.import_no_transactions))
+                        _snackbar.tryEmit(ImportSnackbarMessage.Resource(R.string.import_no_transactions))
                     } else {
                         _state.value = ImportState.Confirmation(importer.bankName, rows)
                     }
@@ -77,7 +81,8 @@ class ImportBankStatementScreenModel(
                 .onFailure { error ->
                     _state.value = ImportState.BankPicker(importers)
                     val message = error.message?.takeIf { it.isNotBlank() }
-                        ?: context.getString(R.string.import_failed)
+                        ?.let { ImportSnackbarMessage.Dynamic(it) }
+                        ?: ImportSnackbarMessage.Resource(R.string.import_failed)
                     _snackbar.tryEmit(message)
                 }
         }
@@ -115,7 +120,7 @@ class ImportBankStatementScreenModel(
             val confirmation = _state.value as? ImportState.Confirmation ?: return@launch
             val selected = confirmation.rows.filter { it.isSelected }
             if (selected.isEmpty()) {
-                _snackbar.tryEmit(context.getString(R.string.import_no_items_selected))
+                _snackbar.tryEmit(ImportSnackbarMessage.Resource(R.string.import_no_items_selected))
                 return@launch
             }
             withContext(Dispatchers.IO) {