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

class InventoryRepository {
  final ApiClient _client;

  const InventoryRepository(this._client);

  Future<PageResult<Inventory>> listInventory({
    int? warehouseId,
    String? keyword,
    int page = 1,
    int pageSize = 50,
  }) async {
    try {
      final params = <String, dynamic>{
        'page': page,
        'page_size': pageSize,
        if (warehouseId != null) 'warehouse_id': warehouseId,
        if (keyword != null && keyword.isNotEmpty) 'keyword': keyword,
      };
      final resp = await _client.get('/inventory', params: params);
      return PageResult.fromJson(
        resp.data as Map<String, dynamic>,
        Inventory.fromJson,
      );
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '获取库存失败',
        statusCode: e.response?.statusCode,
      );
    }
  }

  Future<PageResult<InventoryLog>> listLogs({
    int? warehouseId,
    int? productId,
    int page = 1,
    int pageSize = 50,
  }) async {
    try {
      final params = <String, dynamic>{
        'page': page,
        'page_size': pageSize,
        if (warehouseId != null) 'warehouse_id': warehouseId,
        if (productId != null) 'product_id': productId,
      };
      final resp = await _client.get('/inventory/logs', params: params);
      return PageResult.fromJson(
        resp.data as Map<String, dynamic>,
        InventoryLog.fromJson,
      );
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '获取流水失败',
        statusCode: e.response?.statusCode,
      );
    }
  }
}