using BBWY.Common.Models;
using BBWY.Server.Model.Db;
using BBWY.Server.Model.Dto;
using System.Collections.Generic;
using System.Linq;
using Yitter.IdGenerator;

namespace BBWY.Server.Business
{
    public class BatchPurchaseBusiness : BaseBusiness, IDenpendency
    {
        private ProductBusiness productBusiness;
        public BatchPurchaseBusiness(IFreeSql fsql, NLogManager nLogManager, IIdGenerator idGenerator, ProductBusiness productBusiness) : base(fsql, nLogManager, idGenerator)
        {
            this.productBusiness = productBusiness;
        }

        /// <summary>
        /// 获取包含对应平台采购方案的sku列表
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        /// <exception cref="BusinessException"></exception>
        public IList<ProductSkuWithSchemeResponse> GetProductSkuAndSchemeList(SearchProductSkuAndSchemeRequest request)
        {
            if (string.IsNullOrEmpty(request.Spu) && string.IsNullOrEmpty(request.Sku))
                throw new BusinessException("至少具备一个Sku或Spu条件");

            var productSkuList = productBusiness.GetProductSkuList(new SearchProductSkuRequest()
            {
                AppKey = request.AppKey,
                AppSecret = request.AppSecret,
                AppToken = request.AppToken,
                Platform = request.Platform,
                Sku = request.Sku,
                Spu = request.Spu
            });
            if (productSkuList == null || productSkuList.Count() == 0)
                return null;

            var skuIdList = productSkuList.Select(s => s.Id).ToList();
            var schemeList = fsql.Select<PurchaseScheme, Purchaser>().InnerJoin((ps, p) => ps.PurchaserId == p.Id)
                                                                     .Where((ps, p) => ps.ShopId == request.ShopId)
                                                                     .Where((ps, p) => skuIdList.Contains(ps.SkuId))
                                                                     .ToList((ps, p) => new
                                                                     {
                                                                         PurchaseSchemeId = ps.Id,
                                                                         ps.PurchaserId,
                                                                         PurchaserName = p.Name,
                                                                         ps.PurchasePlatform,
                                                                         ps.SkuId
                                                                     });
            var list = new List<ProductSkuWithSchemeResponse>();
            foreach (var productSku in productSkuList)
            {
                var currentSchemeList = schemeList.Where(ps => ps.SkuId == productSku.Id).ToList();
                if (currentSchemeList == null || currentSchemeList.Count() == 0)
                {
                    list.Add(new ProductSkuWithSchemeResponse()
                    {
                        Id = productSku.Id,
                        SkuId = productSku.Id,
                        ProductId = productSku.ProductId,
                        CreateTime = productSku.CreateTime,
                        Logo = productSku.Logo,
                        Price = productSku.Price,
                        Title = productSku.Title,
                        State = productSku.State
                    });
                }
                else
                {
                    foreach (var currentScheme in currentSchemeList)
                    {
                        list.Add(new ProductSkuWithSchemeResponse()
                        {
                            Id = $"{productSku.Id}_{currentScheme.PurchaseSchemeId}",
                            SkuId = productSku.Id,
                            ProductId = productSku.ProductId,
                            CreateTime = productSku.CreateTime,
                            Logo = productSku.Logo,
                            Price = productSku.Price,
                            Title = productSku.Title,
                            State = productSku.State,
                            PurchaserName = currentScheme.PurchaserName,
                            PurchasePlatform = currentScheme.PurchasePlatform,
                            PurchaserId = currentScheme.PurchaserId,
                            PurchaseSchemeId = currentScheme.PurchaseSchemeId
                        });
                    }
                }
            }
            return list;
        }


    }
}