import 'dart:async';
import 'package:finlytic_app/core/network/api_client.dart';
import 'package:finlytic_app/features/trades/models/trade_model.dart';
import 'package:finlytic_app/features/trades/models/trade_acceptance_dto.dart';

class TradeRepository {
  final ApiClient apiClient;

  TradeRepository({required this.apiClient});

  Future<List<TradeModel>> fetchTrades({String? isin, String? status}) async {
    try {
      final queryParams = <String, dynamic>{};
      if (isin != null && isin.isNotEmpty) queryParams['isin'] = isin;
      if (status != null && status.isNotEmpty) queryParams['status'] = status;

      final response = await apiClient.get('/api/v1/user/trades', queryParameters: queryParams);

      if (response.statusCode == 200 && response.data != null) {
        final List<dynamic> data = response.data;
        return data.map((json) => TradeModel.fromJson(json)).toList();
      }
      return [];
    } catch (e) {
      print('Error fetching trades: $e');
      throw Exception('Trades konnten nicht geladen werden');
    }
  }

  Future<void> acceptTrade(TradeAcceptanceDto dto) async {
    final response = await apiClient.post('/api/v1/user/trades/accept', data: dto.toJson());
    if (response.statusCode != 200) {
      throw Exception('Trade konnte nicht akzeptiert werden');
    }
  }

  Future<void> closeTrade(String id, {double? exitPrice}) async {
    final body = exitPrice != null ? {'userExitPrice': exitPrice} : null;
    final response = await apiClient.post('/api/v1/user/trades/$id/close', data: body);
    if (response.statusCode != 200) {
      throw Exception('Trade konnte nicht geschlossen werden');
    }
  }
}