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.Advertisement.Banners;
using ARW.Service.Business.IBusinessService.Advertisement.Banners;
using ARW.Model.Dto.Business.Advertisement.Banners;
using ARW.Model.Models.Business.Advertisement.Banners;
using ARW.Model.Vo.Business.Advertisement.Banners;

namespace ARW.Service.Business.BusinessService.Advertisement.Banners
{
    /// <summary>
    /// 轮播图接口实现类
    ///
    /// @author lwh
    /// @date 2023-10-09
    /// </summary>
    [AppService(ServiceType = typeof(IBannerService), ServiceLifetime = LifeTime.Transient)]
    public class BannerServiceImpl : BaseService<Banner>, IBannerService
    {
        private readonly BannerRepository _BannerRepository;

        public BannerServiceImpl(BannerRepository BannerRepository)
        {
            this._BannerRepository = BannerRepository;
        }

        #region 业务逻辑代码


        /// <summary>
        /// 查询轮播图分页列表
        /// </summary>
        public async Task<PagedInfo<BannerVo>> GetBannerList(BannerQueryDto parm)
        {
            //开始拼装查询条件d
            var predicate = Expressionable.Create<Banner>();

            predicate = predicate.AndIF(parm.BannerPosition != null, s => s.BannerPosition == parm.BannerPosition);
            var query = _BannerRepository
                .Queryable()
                .Where(predicate.ToExpression())
                .OrderBy(s => s.BannerSort, OrderByType.Asc)
                .Select(s => new BannerVo
                {
                    BannerId = s.BannerId,
                    BannerGuid = s.BannerGuid,
                    BannerPosition = s.BannerPosition,
                    BannerImg = s.BannerImg,
                    BannerSort = s.BannerSort,
                });


            return await query.ToPageAsync(parm);
        }

        /// <summary>
        ///  添加或修改轮播图
        /// </summary>
        public async Task<string> AddOrUpdateBanner(Banner model)
        {
            if (model.BannerId != 0)
            {
                var response = await _BannerRepository.UpdateAsync(model);
                return "修改成功！";
            }
            else
            {

                var response = await _BannerRepository.InsertReturnSnowflakeIdAsync(model);
                return "添加成功！";
            }
        }

        #region Excel处理


        #endregion



        #endregion

    }
}