refactored recipe provider

lib/models/ingredient_list_entry.dart

@@ -8,4 +8,10 @@ class IngredientListEntry {
   final bool optional;
 
   IngredientListEntry(this.ingredient, this.amount, this.unit, this.optional);
+
+  @override
+  operator ==(Object other) {
+    final i = other as IngredientListEntry;
+    return ingredient == i.ingredient;
+  }
 }

lib/models/recipe.dart

@@ -1,12 +1,12 @@
 import 'difficulty.dart';
-import 'ingredient.dart';
 import 'cooking_step.dart';
+import 'ingredient_list_entry.dart';
 
 class Recipe {
   final String title;
   final String description;
   final Difficulty? difficulty;
-  final List<Ingredient> ingredients = [];
+  final List<IngredientListEntry> ingredients = [];
   final List<CookingStep> steps = [];
 
   Recipe({

lib/pages/create_recipe_page.dart

@@ -14,12 +14,11 @@ class CreateRecipe extends StatefulWidget {
 }
 
 class _CreateRecipeState extends State<CreateRecipe> {
-  late RecipeProvider recipeProvider;
+  late RecipeProvider recipe;
-  final List<IngredientListEntry> ingredientEntries = [];
 
   @override
   Widget build(BuildContext context) {
-    recipeProvider = Provider.of<RecipeProvider>(context);
+    recipe = Provider.of<RecipeProvider>(context);
     return Scaffold(
       appBar: AppBar(
         title: const Text('Create Recipe'),
@@ -30,20 +29,20 @@ class _CreateRecipeState extends State<CreateRecipe> {
           child: Column(
             children: [
               TextFormField(
-                onChanged: (value) => recipeProvider.title = value,
+                onChanged: (value) => recipe.title = value,
                 decoration: const InputDecoration(
                   label: Text('Title'),
                 ),
               ),
               TextFormField(
-                onChanged: (value) => recipeProvider.description = value,
+                onChanged: (value) => recipe.description = value,
                 decoration: const InputDecoration(
                   label: Text('Description'),
                 ),
               ),
               DropdownMenu<Difficulty?>(
                 dropdownMenuEntries: DifficultyUtil.getDropdownList(),
-                onSelected: (value) => recipeProvider.difficulty = value,
+                onSelected: (value) => recipe.difficulty = value,
                 label: const Text('Difficulty'),
               ),
               ElevatedButton(
@@ -52,7 +51,7 @@ class _CreateRecipeState extends State<CreateRecipe> {
               ),
               Expanded(
                 child: ListView.separated(
-                  itemCount: ingredientEntries.length,
+                  itemCount: recipe.ingredients.length,
                   itemBuilder: _ingredientListBuilder,
                   separatorBuilder: (context, index) => const Divider(),
                 ),
@@ -74,11 +73,11 @@ class _CreateRecipeState extends State<CreateRecipe> {
   }
 
   void _onIngredientSubmitted(IngredientListEntry ingredient) => setState(() {
-        ingredientEntries.add(ingredient);
+        recipe.ingredients.add(ingredient);
       });
 
   Widget? _ingredientListBuilder(BuildContext context, int index) {
-    final ingredient = ingredientEntries.elementAt(index);
+    final ingredient = recipe.ingredients.elementAt(index);
     final textTheme = Theme.of(context).textTheme.titleMedium;
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 10),
@@ -103,8 +102,4 @@ class _CreateRecipeState extends State<CreateRecipe> {
       ),
     );
   }
-
-  Widget _seperatorBuilder(BuildContext context, int index) {
-    return const Divider(indent: 20, endIndent: 20);
-  }
 }

lib/services/providers/recipe_provider.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:rezepte/models/difficulty.dart';
+import '../../models/difficulty.dart';
-import 'package:rezepte/models/ingredient.dart';
+import '../../models/cooking_step.dart';
-import 'package:rezepte/models/cooking_step.dart';
+import '../../models/ingredient_list_entry.dart';
 
 import '../../models/recipe.dart';
 
@@ -9,7 +9,7 @@ class RecipeProvider extends ChangeNotifier implements Recipe {
   String _title = '';
   String _description = '';
   Difficulty? _difficulty;
-  final List<Ingredient> _ingredients = [];
+  final List<IngredientListEntry> _ingredients = [];
   final List<CookingStep> _steps = [];
 
   void clearRecipe() {
@@ -46,9 +46,9 @@ class RecipeProvider extends ChangeNotifier implements Recipe {
   }
 
   @override
-  List<Ingredient> get ingredients => _ingredients;
+  List<IngredientListEntry> get ingredients => _ingredients;
 
-  void addIngredient(Ingredient ingredient) {
+  void addIngredient(IngredientListEntry ingredient) {
     _ingredients.add(ingredient);
     notifyListeners();
   }
@@ -63,7 +63,7 @@ class RecipeProvider extends ChangeNotifier implements Recipe {
     if (!silent) notifyListeners();
   }
 
-  void removeIngredient(Ingredient ingredient, {silent = false}) {
+  void removeIngredient(IngredientListEntry ingredient, {silent = false}) {
     ingredients.removeWhere((element) => element == ingredient);
     if (!silent) notifyListeners();
   }