import 'package:dio/dio.dart';

import '../models/milestone.dart';
import 'api_client.dart';

class MilestonesApi {
  final Dio _dio;
  const MilestonesApi(this._dio);

  Future<List<Milestone>> getAll(int projectId, {String? status}) async {
    try {
      final response = await _dio.get(
        '/api/projects/$projectId/milestones',
        queryParameters: status != null ? {'status': status} : null,
      );
      final data = response.data as Map<String, dynamic>;
      final list = data['milestones'] as List<dynamic>;
      return list
          .map((e) => Milestone.fromJson(e as Map<String, dynamic>))
          .toList();
    } on DioException catch (e) {
      throw dioToApp(e);
    }
  }

  Future<Milestone> create(
    int projectId, {
    required String title,
    String? description,
    int orderIndex = 0,
  }) async {
    try {
      final response = await _dio.post(
        '/api/projects/$projectId/milestones',
        data: {
          'title': title,
          if (description != null && description.isNotEmpty)
            'description': description,
          'order_index': orderIndex,
        },
      );
      return Milestone.fromJson(response.data as Map<String, dynamic>);
    } on DioException catch (e) {
      throw dioToApp(e);
    }
  }

  Future<Milestone> update(
    int projectId,
    int milestoneId,
    Map<String, dynamic> fields,
  ) async {
    try {
      final response = await _dio.patch(
        '/api/projects/$projectId/milestones/$milestoneId',
        data: fields,
      );
      return Milestone.fromJson(response.data as Map<String, dynamic>);
    } on DioException catch (e) {
      throw dioToApp(e);
    }
  }

  Future<void> delete(int projectId, int milestoneId) async {
    try {
      await _dio.delete('/api/projects/$projectId/milestones/$milestoneId');
    } on DioException catch (e) {
      throw dioToApp(e);
    }
  }
}