class HomeSummary {
  final TodaySummary today;
  final List<ExpiringSoon> expiringSoon;
  final List<HomeRecipe> recommendations;

  const HomeSummary({
    required this.today,
    required this.expiringSoon,
    required this.recommendations,
  });

  factory HomeSummary.fromJson(Map<String, dynamic> json) => HomeSummary(
        today: TodaySummary.fromJson(json['today'] as Map<String, dynamic>),
        expiringSoon: (json['expiring_soon'] as List<dynamic>? ?? [])
            .map((e) => ExpiringSoon.fromJson(e as Map<String, dynamic>))
            .toList(),
        recommendations: (json['recommendations'] as List<dynamic>? ?? [])
            .map((e) => HomeRecipe.fromJson(e as Map<String, dynamic>))
            .toList(),
      );
}

class TodaySummary {
  final String date;
  final int dailyGoal;
  final double loggedCalories;
  final List<TodayMealPlan> plan;

  const TodaySummary({
    required this.date,
    required this.dailyGoal,
    required this.loggedCalories,
    required this.plan,
  });

  factory TodaySummary.fromJson(Map<String, dynamic> json) => TodaySummary(
        date: json['date'] as String,
        dailyGoal: (json['daily_goal'] as num).toInt(),
        loggedCalories: (json['logged_calories'] as num).toDouble(),
        plan: (json['plan'] as List<dynamic>? ?? [])
            .map((e) => TodayMealPlan.fromJson(e as Map<String, dynamic>))
            .toList(),
      );

  double get remainingCalories =>
      dailyGoal > 0 ? (dailyGoal - loggedCalories).clamp(0, dailyGoal.toDouble()) : 0;

  double get progress =>
      dailyGoal > 0 ? (loggedCalories / dailyGoal).clamp(0.0, 1.0) : 0;
}

class TodayMealPlan {
  final String mealType;
  final String? recipeTitle;
  final String? recipeImageUrl;
  final double? calories;

  const TodayMealPlan({
    required this.mealType,
    this.recipeTitle,
    this.recipeImageUrl,
    this.calories,
  });

  factory TodayMealPlan.fromJson(Map<String, dynamic> json) => TodayMealPlan(
        mealType: json['meal_type'] as String,
        recipeTitle: json['recipe_title'] as String?,
        recipeImageUrl: json['recipe_image_url'] as String?,
        calories: (json['calories'] as num?)?.toDouble(),
      );

  bool get hasRecipe => recipeTitle != null;

  String get mealLabel => switch (mealType) {
        'breakfast' => 'Завтрак',
        'lunch' => 'Обед',
        'dinner' => 'Ужин',
        _ => mealType,
      };

  String get mealEmoji => switch (mealType) {
        'breakfast' => '🌅',
        'lunch' => '☀️',
        'dinner' => '🌙',
        _ => '🍽️',
      };
}

class ExpiringSoon {
  final String name;
  final int expiresInDays;
  final String quantity;

  const ExpiringSoon({
    required this.name,
    required this.expiresInDays,
    required this.quantity,
  });

  factory ExpiringSoon.fromJson(Map<String, dynamic> json) => ExpiringSoon(
        name: json['name'] as String,
        expiresInDays: (json['expires_in_days'] as num).toInt(),
        quantity: json['quantity'] as String,
      );

  String get expiryLabel =>
      expiresInDays == 0 ? 'сегодня' : 'через $expiresInDays д.';
}

class HomeRecipe {
  final String id;
  final String title;
  final String imageUrl;
  final double? calories;

  const HomeRecipe({
    required this.id,
    required this.title,
    required this.imageUrl,
    this.calories,
  });

  factory HomeRecipe.fromJson(Map<String, dynamic> json) => HomeRecipe(
        id: json['id'] as String,
        title: json['title'] as String,
        imageUrl: json['image_url'] as String? ?? '',
        calories: (json['calories'] as num?)?.toDouble(),
      );
}