add recipe delete

Author: Leptopoda

assets/i18n/en.json

@@ -135,6 +135,10 @@
     "button": "Save",
     "errors": {
       "update_failed": "Update Failed {error_msg}"
+    },
+    "delete": {
+      "title": "Delete Recipe",
+      "dialog": "Are you sure you want to permanently delete {recipe}?"
     }
   },
   "recipe_create": {

lib/src/blocs/recipe/recipe_bloc.dart

@@ -14,6 +14,7 @@ class RecipeBloc extends Bloc<RecipeEvent, RecipeState> {
     on<RecipeUpdated>(_mapRecipeUpdatedToState);
     on<RecipeImported>(_mapRecipeImportedToState);
     on<RecipeCreated>(_mapRecipeCreatedToState);
+    on<RecipeDeleted>(_mapRecipeDeletedToState);
   }
 
   Future<void> _mapRecipeLoadedToState(
@@ -81,4 +82,22 @@ class RecipeBloc extends Bloc<RecipeEvent, RecipeState> {
       );
     }
   }
+
+  Future<void> _mapRecipeDeletedToState(
+    RecipeDeleted recipeDeleted,
+    Emitter<RecipeState> emit,
+  ) async {
+    try {
+      emit(RecipeState(status: RecipeStatus.deleteInProgress));
+      await dataRepository.deleteRecipe(recipeDeleted.recipe);
+      emit(RecipeState(status: RecipeStatus.delteSuccess));
+    } catch (e) {
+      emit(
+        RecipeState(
+          status: RecipeStatus.deleteFailure,
+          error: e.toString(),
+        ),
+      );
+    }
+  }
 }

lib/src/blocs/recipe/recipe_event.dart

@@ -42,3 +42,12 @@ class RecipeImported extends RecipeEvent {
   @override
   List<Object> get props => [url];
 }
+
+class RecipeDeleted extends RecipeEvent {
+  final Recipe recipe;
+
+  const RecipeDeleted(this.recipe);
+
+  @override
+  List<Object> get props => [recipe];
+}

lib/src/blocs/recipe/recipe_state.dart

@@ -1,8 +1,6 @@
 part of 'recipe_bloc.dart';
 
 enum RecipeStatus {
-  failure,
-  success,
   loadSuccess,
   loadFailure,
   loadInProgress,
@@ -12,6 +10,9 @@ enum RecipeStatus {
   createFailure,
   createSuccess,
   createInProgress,
+  deleteInProgress,
+  deleteFailure,
+  delteSuccess,
   importSuccess,
   importFailure,
   importInProgress;
@@ -34,18 +35,19 @@ class RecipeState extends Equatable {
       case RecipeStatus.updateInProgress:
       case RecipeStatus.createInProgress:
       case RecipeStatus.importInProgress:
+      case RecipeStatus.deleteInProgress:
+      case RecipeStatus.delteSuccess:
         assert(error == null && recipe == null && recipeId == null);
         break;
       case RecipeStatus.createSuccess:
       case RecipeStatus.updateSuccess:
         assert(error == null && recipe == null && recipeId != null);
         break;
-      case RecipeStatus.success:
       case RecipeStatus.loadSuccess:
       case RecipeStatus.importSuccess:
         assert(error == null && recipe != null && recipeId == null);
         break;
-      case RecipeStatus.failure:
+      case RecipeStatus.deleteFailure:
       case RecipeStatus.loadFailure:
       case RecipeStatus.updateFailure:
       case RecipeStatus.createFailure:

lib/src/screens/recipe_edit_screen.dart

@@ -4,10 +4,12 @@ import 'package:flutter_spinkit/flutter_spinkit.dart';
 import 'package:flutter_translate/flutter_translate.dart';
 import 'package:flutter_typeahead/flutter_typeahead.dart';
 import 'package:nc_cookbook_api/nc_cookbook_api.dart';
+import 'package:nextcloud_cookbook_flutter/src/blocs/categories/categories_bloc.dart';
 import 'package:nextcloud_cookbook_flutter/src/blocs/recipe/recipe_bloc.dart';
 import 'package:nextcloud_cookbook_flutter/src/screens/recipe_screen.dart';
 import 'package:nextcloud_cookbook_flutter/src/services/services.dart';
 import 'package:nextcloud_cookbook_flutter/src/util/theme_data.dart';
+import 'package:nextcloud_cookbook_flutter/src/widget/alerts/recipe_delete_alert.dart';
 import 'package:nextcloud_cookbook_flutter/src/widget/alerts/recipe_edit_alert.dart';
 import 'package:nextcloud_cookbook_flutter/src/widget/input/duration_form_field.dart';
 import 'package:nextcloud_cookbook_flutter/src/widget/input/integer_text_form_field.dart';
@@ -53,6 +55,19 @@ class _RecipeEditScreenState extends State<RecipeEditScreen> {
   String get translationKey =>
       widget.recipe != null ? 'recipe_edit' : 'recipe_create';
 
+  Future<void> onDelete() async {
+    final decision = await showDialog<bool>(
+      context: context,
+      builder: (context) => DeleteRecipeAlert(recipe: widget.recipe!),
+    );
+
+    if (decision ?? false) {
+      FocusManager.instance.primaryFocus?.unfocus();
+      // ignore: use_build_context_synchronously
+      BlocProvider.of<RecipeBloc>(context).add(RecipeDeleted(widget.recipe!));
+    }
+  }
+
   void onSubmit() {
     if (_formKey.currentState?.validate() ?? false) {
       _formKey.currentState?.save();
@@ -93,6 +108,16 @@ class _RecipeEditScreenState extends State<RecipeEditScreen> {
     return Scaffold(
       appBar: AppBar(
         title: Text(translate('$translationKey.title')),
+        actions: [
+          if (widget.recipe != null) ...[
+            IconButton(
+              icon: const Icon(Icons.delete),
+              tooltip: translate("recipe_edit.delete.title").toLowerCase(),
+              color: Theme.of(context).colorScheme.error,
+              onPressed: onDelete,
+            ),
+          ],
+        ],
       ),
       body: BlocConsumer<RecipeBloc, RecipeState>(
         builder: builder,
@@ -309,6 +334,7 @@ class _RecipeEditScreenState extends State<RecipeEditScreen> {
     switch (state.status) {
       case RecipeStatus.createFailure:
       case RecipeStatus.updateFailure:
+      case RecipeStatus.deleteFailure:
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(
             content: Text(
@@ -326,6 +352,11 @@ class _RecipeEditScreenState extends State<RecipeEditScreen> {
         BlocProvider.of<RecipeBloc>(context).add(RecipeLoaded(state.recipeId!));
         Navigator.pop(context);
         break;
+      case RecipeStatus.delteSuccess:
+        BlocProvider.of<CategoriesBloc>(context).add(const CategoriesLoaded());
+        Navigator.pop(context);
+        Navigator.pop(context);
+        break;
       case RecipeStatus.createSuccess:
         Navigator.pushReplacement(
           context,

lib/src/screens/recipe_screen.dart

@@ -37,6 +37,7 @@ class RecipeScreen extends StatelessWidget {
         return RecipeScreenBody(recipe: state.recipe!);
       case RecipeStatus.loadFailure:
       case RecipeStatus.createFailure:
+      case RecipeStatus.deleteFailure:
       case RecipeStatus.updateFailure:
       case RecipeStatus.importFailure:
         return Scaffold(

lib/src/services/data_repository.dart

@@ -42,12 +42,17 @@ class DataRepository {
   Future<String?> updateRecipe(Recipe recipe) async {
     final response =
         await api.recipeApi.updateRecipe(id: recipe.id!, recipe: recipe);
-    return response.data?.toString();
+    return response.data;
   }
 
   Future<String?> createRecipe(Recipe recipe) async {
     final response = await api.recipeApi.newRecipe(recipe: recipe);
-    return response.data?.toString();
+    return response.data;
+  }
+
+  Future<String?> deleteRecipe(Recipe recipe) async {
+    final response = await api.recipeApi.deleteRecipe(id: recipe.id!);
+    return response.data;
   }
 
   Future<Recipe?> importRecipe(String url) async {

lib/src/widget/alerts/recipe_delete_alert.dart

@@ -0,0 +1,37 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_translate/flutter_translate.dart';
+import 'package:nc_cookbook_api/nc_cookbook_api.dart';
+
+class DeleteRecipeAlert extends StatelessWidget {
+  const DeleteRecipeAlert({
+    required this.recipe,
+    super.key,
+  });
+
+  final Recipe recipe;
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      icon: const Icon(Icons.delete_forever),
+      iconColor: Theme.of(context).colorScheme.error,
+      title: Text(translate("recipe_edit.delete.title")),
+      content: Text(
+        translate(
+          "recipe_edit.delete.dialog",
+          args: {"recipe": recipe.name},
+        ),
+      ),
+      actions: [
+        TextButton(
+          onPressed: Navigator.of(context).pop,
+          child: Text(MaterialLocalizations.of(context).cancelButtonLabel),
+        ),
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(true),
+          child: Text(MaterialLocalizations.of(context).deleteButtonTooltip),
+        ),
+      ],
+    );
+  }
+}