feat(deck): show loading feedback while deleting a deck

composeApp/src/androidMain/kotlin/com/github/jvsena42/echo/ui/decks/DeckDetailScreen.kt

@@ -174,6 +174,15 @@ fun DeckDetailScreen(
                     onDismiss = onDismissDelete,
                 )
             }
+            if (state.isDeleting) {
+                Box(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .background(colors.surfacePrimary),
+                ) {
+                    EchoLoadingScreen(message = stringResource(R.string.deck_detail_deleting))
+                }
+            }
         }
     }
 }

composeApp/src/androidMain/res/values/strings.xml

@@ -39,6 +39,7 @@
     <string name="deck_detail_error_title">Something went wrong</string>
     <string name="deck_detail_retry">Retry</string>
     <string name="deck_detail_loading">Opening deck…</string>
+    <string name="deck_detail_deleting">Deleting deck…</string>
     <string name="deck_detail_start_studying">Start studying · %1$d due</string>
     <string name="deck_detail_study_this_deck">Study this deck</string>
     <string name="deck_detail_back">Back</string>

shared/src/commonMain/kotlin/com/github/jvsena42/echo/presentation/decks/DeckDetailViewModel.kt

@@ -119,7 +119,7 @@ class DeckDetailViewModel(
 
     fun onConfirmDelete() {
         val current = _state.value as? DeckDetailUiState.Content ?: return
-        _state.value = current.copy(showDeleteConfirm = false)
+        _state.value = current.copy(showDeleteConfirm = false, isDeleting = true)
         scope.launch {
             Log.d(TAG, "onConfirmDelete: deckId=$deckId")
             deckRepository.delete(deckId)
@@ -208,6 +208,7 @@ sealed interface DeckDetailUiState {
         val masteredPercent: String,
         val cardPreviews: List<CardPreviewModel>,
         val showDeleteConfirm: Boolean = false,
+        val isDeleting: Boolean = false,
     ) : DeckDetailUiState
     data class Error(val message: String) : DeckDetailUiState
 }