import 'dart:io';

import 'package:dio/dio.dart';
import 'package:eatvio_app/features/create_diet/repositories/create_diet_repository.dart';
import 'package:eatvio_app/features/create_diet/services/create_diet_service.dart';
import 'package:eatvio_app/features/feed/models/diets_pagination_model.dart';
import 'package:eatvio_app/features/glossary/models/glossary_model.dart';
import 'package:eatvio_app/features/glossary/repositories/glossary_repository.dart';
import 'package:eatvio_app/features/glossary/services/glossary_service.dart';
import 'package:eatvio_app/features/profile/models/profile_model.dart';
import 'package:eatvio_app/features/profile/repositories/profile_repository.dart';
import 'package:eatvio_app/features/profile/services/profile_service.dart';
import 'package:retrofit/dio.dart' show HttpResponse;

import '../../fixtures/fixture_reader.dart';

class FixtureCreateDietRepository extends CreateDietRepository {
  FixtureCreateDietRepository() : super(createDietService: _NoopCreateDietService());

  final List<Map<String, dynamic>> createRequests = <Map<String, dynamic>>[];
  final List<Map<String, dynamic>> updateRequests = <Map<String, dynamic>>[];

  Map<int, Map<int, Map<int, DailySchedule>>> get nutritionFixture {
    final nutritionData = FixtureReader.readAsMap('create_diet/nutrition_response.json');
    final result = <int, Map<int, Map<int, DailySchedule>>>{};

    for (final dayEntry in nutritionData.entries) {
      final dayIndex = int.parse(dayEntry.key);
      final dayData = dayEntry.value as Map<String, dynamic>;
      final dayMap = <int, Map<int, DailySchedule>>{};

      for (final mealEntry in dayData.entries) {
        final mealIndex = int.parse(mealEntry.key);
        final mealData = mealEntry.value as Map<String, dynamic>;
        final mealMap = <int, DailySchedule>{};

        for (final portionEntry in mealData.entries) {
          final portionIndex = int.parse(portionEntry.key);
          final portionData = portionEntry.value as Map<String, dynamic>;

          // Convert portion string to Portion enum
          final portionStr = portionData['portion'] as String;
          Portion portion;
          switch (portionStr) {
            case 'gr':
            case 'grams':
              portion = Portion.grams;
              break;
            case 'milliliters':
              portion = Portion.milliliters;
              break;
            case 'pcs':
              portion = Portion.pcs;
              break;
            default:
              portion = Portion.grams;
          }

          mealMap[portionIndex] = DailySchedule(
            name: portionData['name'] as String,
            portion: portion,
            quantity: portionData['quantity'] as int,
            productNutritionalValueId: portionData['product_nutritional_value_id'] as String?,
          );
        }

        dayMap[mealIndex] = mealMap;
      }

      result[dayIndex] = dayMap;
    }

    return result;
  }

  @override
  Future<CreatedDiet> createDiet({
    required String name,
    required int duration,
    required DietState state,
    required String meatType,
    required String carbType,
    required String vegType,
    required String lightType,
    required String details,
    required File image,
    required List<List<List<DailySchedule>>> dailySchedule,
  }) async {
    createRequests.add(<String, dynamic>{
      'name': name,
      'duration': duration,
      'details': details,
      'state': state.toString(),
      'types': <String, bool>{'meat': meatType == '1', 'carb': carbType == '1', 'veg': vegType == '1', 'light': lightType == '1'},
    });
    final createdDietFixture = FixtureReader.readAsMap('create_diet/created_diet_response.json');
    return CreatedDiet.fromJson(createdDietFixture);
  }

  @override
  Future<Map<int, Map<int, Map<int, DailySchedule>>>> getDietPortionsNutrition(int dietId) async {
    return nutritionFixture;
  }

  @override
  Future<void> updateDiet({
    required int dietId,
    required DietState state,
    String? name,
    int? duration,
    String? meatType,
    String? carbType,
    String? vegType,
    String? lightType,
    String? details,
    File? image,
    List<List<List<DailySchedule>>>? dailySchedule,
  }) async {
    updateRequests.add(<String, dynamic>{
      'id': dietId,
      'name': name,
      'duration': duration,
      'details': details,
      'state': state.toString(),
      if (meatType != null || carbType != null || vegType != null || lightType != null)
        'types': <String, bool>{
          if (meatType != null) 'meat': meatType == '1',
          if (carbType != null) 'carb': carbType == '1',
          if (vegType != null) 'veg': vegType == '1',
          if (lightType != null) 'light': lightType == '1',
        },
    });
  }
}

class FixtureProfileRepository extends ProfileRepository {
  FixtureProfileRepository() : super(profileService: _NoopProfileService());

  @override
  Future<ProfileModel> getMyProfile() async {
    final profileFixture = FixtureReader.readAsMap('profile/my_profile_response.json');
    return ProfileModel.fromJson(profileFixture);
  }
}

class FixtureGlossaryRepository extends GlossaryRepository {
  FixtureGlossaryRepository() : super(glossaryService: _NoopGlossaryService());

  @override
  Future<List<GlossaryModel>> getGlossaryListByQuery(String query) async {
    final results = FixtureReader.readAsMap('create_diet/glossary_search_response.json')['results'] as List<dynamic>;
    return results.map((item) => GlossaryModel.fromJson(item as Map<String, dynamic>)).toList();
  }
}

class _NoopCreateDietService implements CreateDietService {
  @override
  Future<CreatedDiet> createDraftedDiet({required FormData formData}) {
    throw UnimplementedError();
  }

  @override
  Future<CreatedDiet> createPersonalDiet({required FormData formData}) {
    throw UnimplementedError();
  }

  @override
  Future<CreatedDiet> createPublishedDiet({required FormData formData}) {
    throw UnimplementedError();
  }

  @override
  Future<HttpResponse> getDietPortionsNutrition({required int diet}) {
    throw UnimplementedError();
  }

  @override
  Future<void> updateDrafted({required int diet, required FormData formData}) {
    throw UnimplementedError();
  }

  @override
  Future<void> updatePersonal({required int diet, required FormData formData}) {
    throw UnimplementedError();
  }

  @override
  Future<void> updatePublished({required int diet, required FormData formData}) {
    throw UnimplementedError();
  }
}

class _NoopProfileService implements ProfileService {
  @override
  noSuchMethod(Invocation invocation) => throw UnimplementedError('ProfileService call ${invocation.memberName}');
}

class _NoopGlossaryService implements GlossaryService {
  @override
  noSuchMethod(Invocation invocation) => throw UnimplementedError('GlossaryService call ${invocation.memberName}');
}