import 'package:dio/dio.dart';
import '../core/api/api_client.dart';
import '../core/exceptions.dart';
import '../core/models/page_result.dart';
import '../models/product.dart';

class ProductRepository {
  final ApiClient _client;

  const ProductRepository(this._client);

  Future<PageResult<Product>> list({
    int page = 1,
    int pageSize = 20,
    String? keyword,
    int? categoryId,
  }) async {
    try {
      final params = <String, dynamic>{
        'page': page,
        'page_size': pageSize,
        if (keyword != null && keyword.isNotEmpty) 'keyword': keyword,
        if (categoryId != null) 'category_id': categoryId,
      };
      final resp = await _client.get('/products', params: params);
      return PageResult.fromJson(
        resp.data as Map<String, dynamic>,
        Product.fromJson,
      );
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '获取商品列表失败',
        statusCode: e.response?.statusCode,
      );
    }
  }

  Future<Product> create(Map<String, dynamic> data) async {
    try {
      final resp = await _client.post('/products', data: data);
      return Product.fromJson(
          (resp.data as Map<String, dynamic>)['data'] as Map<String, dynamic>);
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '创建商品失败',
        statusCode: e.response?.statusCode,
      );
    }
  }

  Future<Product> update(int id, Map<String, dynamic> data) async {
    try {
      final resp = await _client.put('/products/$id', data: data);
      return Product.fromJson(
          (resp.data as Map<String, dynamic>)['data'] as Map<String, dynamic>);
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '更新商品失败',
        statusCode: e.response?.statusCode,
      );
    }
  }

  Future<void> delete(int id) async {
    try {
      await _client.delete('/products/$id');
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '删除商品失败',
        statusCode: e.response?.statusCode,
      );
    }
  }
}