using Infrastructure.Attribute;
using SqlSugar;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using ARW.Model;
using ARW.Repository;
using ARW.Repository.Business.GoodsManager.Goodss;
using ARW.Service.Api.IBusinessService.GoodsManager.Goodss;
using ARW.Model.Dto.Api.GoodsManager.Goodss;
using ARW.Model.Models.Business.GoodsManager.Goodss;
using ARW.Model.Vo.Api.GoodsManager.Goodss;
using ARW.Model.Models.Business.ShopManager.Shops;
using ARW.Repository.Business.GoodsManager.GoodsSpecs.GoodsSpecRels;
using ARW.Repository.Business.GoodsManager.GoodsSpecs.Specs;
using ARW.Repository.Business.GoodsManager.GoodsSpecs.SpecValues;
using Newtonsoft.Json;
using Senparc.CO2NET.Extensions;
using ARW.Model.Models.Business.GoodsManager.GoodsSpecs.GoodsSkus;
using ARW.Repository.Business.GoodsManager.GoodsSpecs.GoodsSkus;

namespace ARW.Service.Api.BusinessService.GoodsManager.Goodss
{
    /// <summary>
    /// 商品接口实现类Api
    ///
    /// @author lwh
    /// @date 2023-07-09
    /// </summary>
    [AppService(ServiceType = typeof(IGoodsServiceApi), ServiceLifetime = LifeTime.Transient)]
    public class GoodsServiceImplApi : BaseService<Goods>, IGoodsServiceApi
    {
        private readonly GoodsRepository _GoodsRepository;
        private readonly GoodsSpecRelRepository _GoodsSpecRelRepository;
        private readonly SpecRepository _SpecRepository;
        private readonly SpecValueRepository _SpecValueRepository;
        private readonly GoodsSkuRepository _GoodsSkuRepository;

        public GoodsServiceImplApi(GoodsRepository GoodsRepository, GoodsSpecRelRepository goodsSpecRelRepository, SpecRepository specRepository, SpecValueRepository specValueRepository, GoodsSkuRepository goodsSkuRepository)
        {
            this._GoodsRepository = GoodsRepository;
            _GoodsSpecRelRepository = goodsSpecRelRepository;
            _SpecRepository = specRepository;
            _SpecValueRepository = specValueRepository;
            _GoodsSkuRepository = goodsSkuRepository;
        }

        #region Api接口代码


        /// <summary>
        /// 查询商品列表(Api)
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        public async Task<PagedInfo<GoodsVoApi>> GetGoodsListApi(GoodsQueryDtoApi parm)
        {
            //开始拼装查询条件
            var predicate = Expressionable.Create<Goods>();

            predicate = predicate.AndIF(parm.ShopGuid != null, s => s.ShopGuid == parm.ShopGuid);
            //predicate = predicate.AndIF(parm.GoodsCategoryGuid != null, s => s.GoodsCategoryGuid == parm.GoodsCategoryGuid);
            predicate = predicate.AndIF(!string.IsNullOrEmpty(parm.GoodsName), s => s.GoodsName.Contains(parm.GoodsName));
            predicate = predicate.AndIF(!string.IsNullOrEmpty(parm.GoodsCoding), s => s.GoodsCoding.Contains(parm.GoodsCoding));
            var query = _GoodsRepository
                .Queryable()
                .LeftJoin<Shop>((s, c) => s.ShopGuid == c.ShopGuid)
                .Where(predicate.ToExpression())
                .WhereIF(parm.GoodsCategoryGuid != null, (s,c) => c.ShopBusinessCategoryGuid == parm.GoodsCategoryGuid)
                .Where(s => s.GoodsShelfStatus == 1)
                .OrderBy(s => s.GoodsSort, OrderByType.Desc)
                .Select((s, c) => new GoodsVoApi
                {
                    SpuId = s.GoodsGuid,
                    ShopGuid = s.ShopGuid,
                    ShopName = c.ShopName,
                    CategoryIds = s.ShopGoodsCategoryGuid,
                    Title = s.GoodsName,
                    GoodsCoding = s.GoodsCoding,
                    Video = s.GoodsMainImageVideo,
                    PrimaryImage = s.GoodsVideoCover,
                    Images = s.GoodsPicture,
                    Price = s.GoodsPriceLowest,
                    OriginPrice = s.GoodsDashedPriceLowest,
                    SpuStockQuantity = s.GoodsTotalInventory,
                    SoldNum = s.GoodsSalesInitial + s.GoodsSalesActual,
                    IsPutOnSale = s.GoodsShelfStatus,
                });


            return await query.ToPageAsync(parm);
        }

        /// <summary>
        /// 查询商品详情(Api)
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        public async Task<string> GetGoodsDetails(GoodsDtoApi parm)
        {

            var query = _GoodsRepository
                .Queryable()
                .Where(s => s.GoodsGuid == parm.SpuId)
                .Select(s => new GoodsApiDetailsVo
                {
                    SpuId = s.GoodsGuid,
                    ShopGuid = s.ShopGuid,
                    CategoryIds = s.ShopGoodsCategoryGuid,
                    Title = s.GoodsName,
                    GoodsCoding = s.GoodsCoding,
                    Video = s.GoodsMainImageVideo,
                    PrimaryImage = s.GoodsVideoCover,
                    Images = s.GoodsPicture,
                    MinSalePrice = s.GoodsPriceLowest,
                    MaxSalePrice = s.GoodsPriceHighest,
                    MaxLinePrice = s.GoodsDashedPriceHighest,
                    SpuStockQuantity = s.GoodsTotalInventory,
                    SoldNum = s.GoodsSalesInitial + s.GoodsSalesActual,
                    Desc = s.GoodsDetails,
                    IsPutOnSale = s.GoodsShelfStatus,
                }).Take(1);


            var json = await query.ToJsonAsync();
            var data = await GetSpecList(json);
            return data;
        }


        /// <summary>
        /// 获取商品的规格组列表
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        public async Task<string> GetSpecList(string json)
        {
            if (json != "[]")
            {
                json = json.Remove(0, 1);
                json = json.Substring(0, json.Length - 1);
                var data = JsonConvert.DeserializeObject<GoodsApiDetailsVo>(json);

                var goodsSpecListVo = new List<GoodsSpecApiVo>();

                var specIds = (await _GoodsSpecRelRepository.GetListAsync(s => s.GoodsGuid == data.SpuId))
                    .Select(item => item.SpecId)
                    .Distinct()
                    .ToList();

                var specs = await _SpecRepository.GetListAsync(s => specIds.Contains(s.SpecId));
                var specValueIds = (await _GoodsSpecRelRepository.GetListAsync(s => s.GoodsGuid == data.SpuId))
                    .Where(item => item.SpecValueId != 0)
                    .Select(item => item.SpecValueId)
                    .Distinct()
                    .ToList();

                var specValues = await GetSpecValuesAsync(specValueIds);

                foreach (var spec in specs)
                {
                    var goodsSpecVo = new GoodsSpecApiVo
                    {
                        SpecId = spec.SpecId,
                        Title = spec.SpecName,
                        SpecValueList = new List<SpecValueApiVo>()
                    };
                    goodsSpecVo.SpecValueList.AddRange(specValues.Where(sv => sv.SpecId == spec.SpecId));

                    goodsSpecListVo.Add(goodsSpecVo);
                }

                // 获取Sku列表
                var skuList = await _GoodsSkuRepository.GetListAsync(s => s.GoodsGuid == data.SpuId);
                data.SkuList = await GetSkuListWithSpecValuesAsync(skuList);

                data.SpecList = goodsSpecListVo;
                json = data.ToJson();
            }

            return json;
        }


        /// <summary>
        /// 获取商品规格值列表
        /// </summary>
        /// <param name="specValueIds"></param>
        /// <returns></returns>
        private async Task<List<SpecValueApiVo>> GetSpecValuesAsync(List<int> specValueIds)
        {
            var specValues = await _SpecValueRepository.GetListAsync(sv => specValueIds.Contains(sv.SpecValueId));
            return specValues.Select(sv => new SpecValueApiVo
            {
                SpecValueId = sv.SpecValueId,
                SpecId = sv.SpecId,
                SpecValue = sv.SpecValueName,
            }).ToList();
        }

        /// <summary>
        /// 获取商品sku列表
        /// </summary>
        /// <param name="skuList"></param>
        /// <returns></returns>
        private async Task<List<GoosSkuApiVo>> GetSkuListWithSpecValuesAsync(List<GoodsSku> skuList)
        {
            var resList = new List<GoosSkuApiVo>();
            var specValueIds = skuList.SelectMany(sku => new[] { sku.SpecValueId, sku.SpecSecondValueId, sku.SpecThirdValueId })
                .Distinct()
                .Where(id => id != 0)
                .ToList();

            // sku所属商品规格
            var specValues = await GetSpecValuesAsync(specValueIds);
            var addedSpecValueIds = new HashSet<int>();

            foreach (var item in skuList)
            {
                var list = new List<SkuSpecInfo>();

                await AddSkuSpecInfo(item.SpecValueId);
                await AddSkuSpecInfo(item.SpecSecondValueId);
                await AddSkuSpecInfo(item.SpecThirdValueId);

                async Task AddSkuSpecInfo(int specValueId)
                {
                    if (specValueId != 0)
                    {
                        //addedSpecValueIds.Add(specValueId);

                        var sku = specValues.FirstOrDefault(sv => sv.SpecValueId == specValueId);
                        var spec = await _SpecRepository.GetFirstAsync(s => s.SpecId == sku.SpecId);
                        var skuSpecInfo = new SkuSpecInfo
                        {
                            SpecId = sku.SpecId,
                            SpecTitle = spec.SpecName,
                            SpecValueId = sku.SpecValueId,
                            SpecValue = sku.SpecValue
                        };
                        list.Add(skuSpecInfo);
                    }
                }

                // sku价格
                var skuPriceInfoList = new List<PriceInfo>();
                var skuPriceInfo1 = new PriceInfo
                {
                    PriceType = 1,
                    Price = item.GoodsSkuPrice,
                    PriceTypeName = "销售价格"
                };
                skuPriceInfoList.Add(skuPriceInfo1);
                if (item.GoodsSkuLinePrice != 0)
                {
                    var skuPriceInfo2 = new PriceInfo
                    {
                        PriceType = 2,
                        Price = item.GoodsSkuLinePrice,
                        PriceTypeName = "划线价格"
                    };
                    skuPriceInfoList.Add(skuPriceInfo2);
                }

                var skuVo = new GoosSkuApiVo
                {
                    SkuId = item.GoodsSkuId,
                    SkuImage = item.GoodsSkuImg,
                    SpecInfo = list,
                    PriceInfo = skuPriceInfoList,
                    Quantity = item.GoodsSkuStockNum,
                    Weight = item.GoodsSkuWeight
                };
                resList.Add(skuVo);
            }



            return resList;
        }

        #endregion

    }
}