feat: implement Iteration 1 — AI recipe recommendations
Backend:
- Add Groq LLM client (llama-3.3-70b) for recipe generation with JSON
retry strategy (retries only on parse errors, not API errors)
- Add Pexels client for parallel photo search per recipe
- Add saved_recipes table (migration 004) with JSONB fields
- Add GET /recommendations endpoint (profile-aware prompt building)
- Add POST/GET/GET{id}/DELETE /saved-recipes CRUD endpoints
- Wire gemini, pexels, recommendation, savedrecipe packages in main.go
Flutter:
- Add Recipe, SavedRecipe models with json_serializable
- Add RecipeService (getRecommendations, getSavedRecipes, save, delete)
- Add RecommendationsNotifier and SavedRecipesNotifier (Riverpod)
- Add RecommendationsScreen with skeleton loading and refresh FAB
- Add RecipeDetailScreen (SliverAppBar, nutrition tooltip, steps with timer)
- Add SavedRecipesScreen with Dismissible swipe-to-delete and empty state
- Update RecipesScreen to TabBar (Recommendations / Saved)
- Add /recipe-detail route outside ShellRoute (no bottom nav)
- Extend ApiClient with getList() and deleteVoid()
Project:
- Add CLAUDE.md with English-only rule for comments and commit messages
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
dbastrikin
121
client/lib/shared/models/recipe.dart
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121
client/lib/shared/models/recipe.dart
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import 'package:json_annotation/json_annotation.dart';
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part 'recipe.g.dart';
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@JsonSerializable(explicitToJson: true)
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class Recipe {
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final String title;
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final String description;
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final String cuisine;
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final String difficulty;
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@JsonKey(name: 'prep_time_min')
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final int prepTimeMin;
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@JsonKey(name: 'cook_time_min')
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final int cookTimeMin;
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final int servings;
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@JsonKey(name: 'image_url', defaultValue: '')
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final String imageUrl;
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@JsonKey(name: 'image_query', defaultValue: '')
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final String imageQuery;
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@JsonKey(defaultValue: [])
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final List<RecipeIngredient> ingredients;
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@JsonKey(defaultValue: [])
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final List<RecipeStep> steps;
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@JsonKey(defaultValue: [])
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final List<String> tags;
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@JsonKey(name: 'nutrition_per_serving')
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final NutritionInfo? nutrition;
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const Recipe({
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required this.title,
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required this.description,
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required this.cuisine,
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required this.difficulty,
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required this.prepTimeMin,
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required this.cookTimeMin,
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required this.servings,
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this.imageUrl = '',
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this.imageQuery = '',
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this.ingredients = const [],
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this.steps = const [],
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this.tags = const [],
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this.nutrition,
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});
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factory Recipe.fromJson(Map<String, dynamic> json) => _$RecipeFromJson(json);
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Map<String, dynamic> toJson() => _$RecipeToJson(this);
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}
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@JsonSerializable()
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class RecipeIngredient {
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final String name;
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final double amount;
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final String unit;
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const RecipeIngredient({
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required this.name,
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required this.amount,
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required this.unit,
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});
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factory RecipeIngredient.fromJson(Map<String, dynamic> json) =>
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_$RecipeIngredientFromJson(json);
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Map<String, dynamic> toJson() => _$RecipeIngredientToJson(this);
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}
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@JsonSerializable()
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class RecipeStep {
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final int number;
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final String description;
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@JsonKey(name: 'timer_seconds')
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final int? timerSeconds;
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const RecipeStep({
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required this.number,
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required this.description,
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this.timerSeconds,
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});
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factory RecipeStep.fromJson(Map<String, dynamic> json) =>
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_$RecipeStepFromJson(json);
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Map<String, dynamic> toJson() => _$RecipeStepToJson(this);
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}
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@JsonSerializable()
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class NutritionInfo {
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final double calories;
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@JsonKey(name: 'protein_g')
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final double proteinG;
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@JsonKey(name: 'fat_g')
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final double fatG;
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@JsonKey(name: 'carbs_g')
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final double carbsG;
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@JsonKey(defaultValue: true)
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final bool approximate;
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const NutritionInfo({
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required this.calories,
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required this.proteinG,
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required this.fatG,
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required this.carbsG,
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this.approximate = true,
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});
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factory NutritionInfo.fromJson(Map<String, dynamic> json) =>
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_$NutritionInfoFromJson(json);
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Map<String, dynamic> toJson() => _$NutritionInfoToJson(this);
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}
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97
client/lib/shared/models/recipe.g.dart
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97
client/lib/shared/models/recipe.g.dart
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// GENERATED CODE - DO NOT MODIFY BY HAND
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part of 'recipe.dart';
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// **************************************************************************
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// JsonSerializableGenerator
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// **************************************************************************
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Recipe _$RecipeFromJson(Map<String, dynamic> json) => Recipe(
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title: json['title'] as String,
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description: json['description'] as String,
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cuisine: json['cuisine'] as String,
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difficulty: json['difficulty'] as String,
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prepTimeMin: (json['prep_time_min'] as num).toInt(),
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cookTimeMin: (json['cook_time_min'] as num).toInt(),
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servings: (json['servings'] as num).toInt(),
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imageUrl: json['image_url'] as String? ?? '',
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imageQuery: json['image_query'] as String? ?? '',
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ingredients:
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(json['ingredients'] as List<dynamic>?)
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?.map((e) => RecipeIngredient.fromJson(e as Map<String, dynamic>))
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.toList() ??
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[],
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steps:
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(json['steps'] as List<dynamic>?)
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?.map((e) => RecipeStep.fromJson(e as Map<String, dynamic>))
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.toList() ??
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[],
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tags:
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(json['tags'] as List<dynamic>?)?.map((e) => e as String).toList() ?? [],
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nutrition: json['nutrition_per_serving'] == null
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? null
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: NutritionInfo.fromJson(
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json['nutrition_per_serving'] as Map<String, dynamic>,
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),
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);
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Map<String, dynamic> _$RecipeToJson(Recipe instance) => <String, dynamic>{
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'title': instance.title,
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'description': instance.description,
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'cuisine': instance.cuisine,
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'difficulty': instance.difficulty,
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'prep_time_min': instance.prepTimeMin,
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'cook_time_min': instance.cookTimeMin,
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'servings': instance.servings,
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'image_url': instance.imageUrl,
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'image_query': instance.imageQuery,
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'ingredients': instance.ingredients.map((e) => e.toJson()).toList(),
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'steps': instance.steps.map((e) => e.toJson()).toList(),
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'tags': instance.tags,
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'nutrition_per_serving': instance.nutrition?.toJson(),
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};
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RecipeIngredient _$RecipeIngredientFromJson(Map<String, dynamic> json) =>
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RecipeIngredient(
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name: json['name'] as String,
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amount: (json['amount'] as num).toDouble(),
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unit: json['unit'] as String,
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);
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Map<String, dynamic> _$RecipeIngredientToJson(RecipeIngredient instance) =>
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<String, dynamic>{
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'name': instance.name,
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'amount': instance.amount,
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'unit': instance.unit,
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};
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RecipeStep _$RecipeStepFromJson(Map<String, dynamic> json) => RecipeStep(
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number: (json['number'] as num).toInt(),
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description: json['description'] as String,
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timerSeconds: (json['timer_seconds'] as num?)?.toInt(),
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);
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Map<String, dynamic> _$RecipeStepToJson(RecipeStep instance) =>
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<String, dynamic>{
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'number': instance.number,
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'description': instance.description,
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'timer_seconds': instance.timerSeconds,
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};
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NutritionInfo _$NutritionInfoFromJson(Map<String, dynamic> json) =>
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NutritionInfo(
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calories: (json['calories'] as num).toDouble(),
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proteinG: (json['protein_g'] as num).toDouble(),
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fatG: (json['fat_g'] as num).toDouble(),
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carbsG: (json['carbs_g'] as num).toDouble(),
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approximate: json['approximate'] as bool? ?? true,
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);
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Map<String, dynamic> _$NutritionInfoToJson(NutritionInfo instance) =>
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<String, dynamic>{
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'calories': instance.calories,
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'protein_g': instance.proteinG,
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'fat_g': instance.fatG,
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'carbs_g': instance.carbsG,
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'approximate': instance.approximate,
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};
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64
client/lib/shared/models/saved_recipe.dart
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64
client/lib/shared/models/saved_recipe.dart
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@@ -0,0 +1,64 @@
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import 'package:json_annotation/json_annotation.dart';
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import 'recipe.dart';
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part 'saved_recipe.g.dart';
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@JsonSerializable(explicitToJson: true)
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class SavedRecipe {
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final String id;
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final String title;
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final String? description;
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final String? cuisine;
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final String? difficulty;
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@JsonKey(name: 'prep_time_min')
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final int? prepTimeMin;
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@JsonKey(name: 'cook_time_min')
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final int? cookTimeMin;
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final int? servings;
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@JsonKey(name: 'image_url')
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final String? imageUrl;
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@JsonKey(defaultValue: [])
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final List<RecipeIngredient> ingredients;
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@JsonKey(defaultValue: [])
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final List<RecipeStep> steps;
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@JsonKey(defaultValue: [])
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final List<String> tags;
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@JsonKey(name: 'nutrition_per_serving')
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final NutritionInfo? nutrition;
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final String source;
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@JsonKey(name: 'saved_at')
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final DateTime savedAt;
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const SavedRecipe({
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required this.id,
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required this.title,
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this.description,
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this.cuisine,
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this.difficulty,
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this.prepTimeMin,
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this.cookTimeMin,
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this.servings,
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this.imageUrl,
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this.ingredients = const [],
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this.steps = const [],
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this.tags = const [],
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this.nutrition,
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required this.source,
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required this.savedAt,
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});
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factory SavedRecipe.fromJson(Map<String, dynamic> json) =>
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_$SavedRecipeFromJson(json);
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Map<String, dynamic> toJson() => _$SavedRecipeToJson(this);
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}
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57
client/lib/shared/models/saved_recipe.g.dart
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57
client/lib/shared/models/saved_recipe.g.dart
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@@ -0,0 +1,57 @@
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// GENERATED CODE - DO NOT MODIFY BY HAND
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part of 'saved_recipe.dart';
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// **************************************************************************
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// JsonSerializableGenerator
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// **************************************************************************
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SavedRecipe _$SavedRecipeFromJson(Map<String, dynamic> json) => SavedRecipe(
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id: json['id'] as String,
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title: json['title'] as String,
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description: json['description'] as String?,
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cuisine: json['cuisine'] as String?,
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difficulty: json['difficulty'] as String?,
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prepTimeMin: (json['prep_time_min'] as num?)?.toInt(),
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cookTimeMin: (json['cook_time_min'] as num?)?.toInt(),
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servings: (json['servings'] as num?)?.toInt(),
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imageUrl: json['image_url'] as String?,
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ingredients:
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(json['ingredients'] as List<dynamic>?)
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?.map((e) => RecipeIngredient.fromJson(e as Map<String, dynamic>))
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.toList() ??
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[],
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steps:
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(json['steps'] as List<dynamic>?)
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?.map((e) => RecipeStep.fromJson(e as Map<String, dynamic>))
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.toList() ??
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[],
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tags:
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(json['tags'] as List<dynamic>?)?.map((e) => e as String).toList() ?? [],
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nutrition: json['nutrition_per_serving'] == null
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? null
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: NutritionInfo.fromJson(
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json['nutrition_per_serving'] as Map<String, dynamic>,
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),
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source: json['source'] as String,
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savedAt: DateTime.parse(json['saved_at'] as String),
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);
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Map<String, dynamic> _$SavedRecipeToJson(SavedRecipe instance) =>
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<String, dynamic>{
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'id': instance.id,
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'title': instance.title,
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'description': instance.description,
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'cuisine': instance.cuisine,
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'difficulty': instance.difficulty,
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'prep_time_min': instance.prepTimeMin,
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'cook_time_min': instance.cookTimeMin,
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'servings': instance.servings,
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'image_url': instance.imageUrl,
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'ingredients': instance.ingredients.map((e) => e.toJson()).toList(),
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'steps': instance.steps.map((e) => e.toJson()).toList(),
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'tags': instance.tags,
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'nutrition_per_serving': instance.nutrition?.toJson(),
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'source': instance.source,
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'saved_at': instance.savedAt.toIso8601String(),
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};
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