using Infrastructure.Attribute;
using Microsoft.AspNetCore.Http;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Infrastructure;
using ARW.Model;
using ARW.Repository;
using ARW.Repository.Business.Carts;
using ARW.Service.Business.IBusinessService.Carts;
using ARW.Model.Dto.Business.Carts;
using ARW.Model.Models.Business.Carts;
using ARW.Model.Vo.Business.Carts;
using ARW.Model.Dto.Api.Carts;

namespace ARW.Service.Business.BusinessService.Carts
{
    /// <summary>
    /// 购物车记录接口实现类
    ///
    /// @author lwh
    /// @date 2023-07-20
    /// </summary>
    [AppService(ServiceType = typeof(ICartService), ServiceLifetime = LifeTime.Transient)]
    public class CartServiceImpl : BaseService<Cart>, ICartService
    {
        private readonly CartRepository _CartRepository;

        public CartServiceImpl(CartRepository CartRepository)
        {
            this._CartRepository = CartRepository;
        }

        #region 业务逻辑代码


        /// <summary>
        /// 查询购物车记录分页列表
        /// </summary>
        public async Task<PagedInfo<CartVo>> GetCartList(CartQueryDto parm)
        {
            //开始拼装查询条件d
            var predicate = Expressionable.Create<Cart>();

            predicate = predicate.AndIF(parm.CustomerGuid != null, s => s.CustomerGuid == parm.CustomerGuid);
            predicate = predicate.AndIF(parm.ShopGuid != null, s => s.ShopGuid == parm.ShopGuid);
            var query = _CartRepository
                .Queryable()
                .Where(predicate.ToExpression())
                .OrderBy(s => s.Create_time, OrderByType.Desc)
                .Select(s => new CartVo
                {
                    CartId = s.CartId,
                    CartGuid = s.CartGuid,
                    CustomerGuid = s.CustomerGuid,
                    ShopGuid = s.ShopGuid,
                    //GoodsGud = s.GoodsGud,
                    GoodsSkuId = s.GoodsSkuId,
                    CartGoodsNum = s.CartGoodsNum,
                });


            return await query.ToPageAsync(parm);
        }

        /// <summary>
        ///  添加或修改购物车记录
        /// </summary>
        public async Task<string> AddOrUpdateCart(Cart model)
        {
            if (model.CartId != 0)
            {
                var response = await _CartRepository.UpdateAsync(model);
                return "修改成功！";
            }
            else
            {
                var cart = await _CartRepository.GetFirstAsync(s => s.CustomerGuid == model.CustomerGuid && s.GoodsGuid == model.GoodsGuid && s.GoodsSkuId == model.GoodsSkuId && s.IsDelete == false);
                if (cart != null)
                {
                    cart.CartGoodsNum += model.CartGoodsNum;
                    var response = await _CartRepository.UpdateAsync(cart);
                }
                else
                {
                    var response = await _CartRepository.InsertReturnSnowflakeIdAsync(model);
                }
                return "添加成功！";
            }
        }

        #region Excel处理


        #endregion



        #endregion

    }
}