import 'package:flutter_riverpod/flutter_riverpod.dart';

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

/// Dépôt de données pour le portefeuille électronique.
class WalletRepository {
  WalletRepository(this._apiClient);

  final ApiClient _apiClient;

  Future<Wallet> fetchWallet() async {
    final response = await _apiClient.get(ApiEndpoints.wallet);
    final json = _extractObject(response.data);
    return Wallet.fromJson(json);
  }

  Future<List<WalletTransaction>> fetchTransactions() async {
    final response = await _apiClient.get(ApiEndpoints.walletTransactions);
    final list = _extractList(response.data);

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

  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 walletRepositoryProvider = Provider<WalletRepository>((ref) {
  return WalletRepository(ref.watch(apiClientProvider));
});

final walletProvider = FutureProvider<Wallet>((ref) async {
  return ref.watch(walletRepositoryProvider).fetchWallet();
});

final walletTransactionsProvider =
    FutureProvider<List<WalletTransaction>>((ref) async {
  return ref.watch(walletRepositoryProvider).fetchTransactions();
});