import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../../../core/api/api_client.dart';
import '../../../core/api/api_endpoints.dart';
import '../domain/establishment.dart';

/// Dépôt de données pour les établissements et machines.
class EstablishmentRepository {
  EstablishmentRepository(this._apiClient);

  final ApiClient _apiClient;

  Future<List<Establishment>> fetchEstablishments() async {
    final response = await _apiClient.get(ApiEndpoints.establishments);
    final data = _extractList(response.data);

    return data
        .map((json) => Establishment.fromJson(json as Map<String, dynamic>))
        .toList();
  }

  Future<Establishment> fetchEstablishment(String uuid) async {
    final response = await _apiClient.get(ApiEndpoints.establishment(uuid));
    final json = _extractObject(response.data);
    return Establishment.fromJson(json);
  }

  List<dynamic> _extractList(dynamic data) {
    if (data is List<dynamic>) return data;
    if (data is Map<String, dynamic> && data['data'] is List<dynamic>) {
      return data['data'] as List<dynamic>;
    }
    return [];
  }

  Map<String, dynamic> _extractObject(dynamic data) {
    if (data is Map<String, dynamic>) {
      if (data['data'] is Map<String, dynamic>) {
        return data['data'] as Map<String, dynamic>;
      }
      return data;
    }
    throw StateError('Réponse API inattendue');
  }
}

final establishmentRepositoryProvider = Provider<EstablishmentRepository>((ref) {
  return EstablishmentRepository(ref.watch(apiClientProvider));
});

final establishmentsProvider = FutureProvider<List<Establishment>>((ref) async {
  return ref.watch(establishmentRepositoryProvider).fetchEstablishments();
});

final establishmentDetailProvider =
    FutureProvider.family<Establishment, String>((ref, uuid) async {
  return ref.watch(establishmentRepositoryProvider).fetchEstablishment(uuid);
});