using Coldairarrow.Entity.DTO;
using Coldairarrow.Entity.Enum;
using Coldairarrow.Entity.HuiYan;
using Coldairarrow.IBusiness;
using Coldairarrow.Util;
using EFCore.Sharding;
using LinqKit;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Dynamic.Core;
using System.Linq.Expressions;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace Coldairarrow.Business.HuiYan
{
    public class teamitemsBusiness : BaseBusiness<teamitems>, IteamitemsBusiness, ITransientDependency
    {
        readonly IOperator _operator;
        public teamitemsBusiness(IDbAccessor db, IOperator @operator)
            : base(db)
        {
            _operator = @operator;
        }

        #region 外部接口

        public async Task<PageResult<teamitems>> GetDataListAsync(PageInput<ConditionDTO> input)
        {
            var q = GetIQueryable();
            var where = LinqHelper.True<teamitems>();
            var search = input.Search;

            //筛选
            if (!search.Condition.IsNullOrEmpty() && !search.Keyword.IsNullOrEmpty())
            {
                var newWhere = DynamicExpressionParser.ParseLambda<teamitems, bool>(
                    ParsingConfig.Default, false, $@"{search.Condition}.Contains(@0)", search.Keyword);
                where = where.And(newWhere);
            }

            return await q.Where(where).GetPageResultAsync(input);
        }

        public async Task<teamitems> GetTheDataAsync(string id)
        {
            return await GetEntityAsync(id);
        }

        public async Task AddDataAsync(teamitems data)
        {
            await InsertAsync(data);
        }

        public async Task UpdateDataAsync(teamitems data)
        {
            await UpdateAsync(data);
        }

        public async Task DeleteDataAsync(List<string> ids)
        {
            await DeleteAsync(ids);
        }

        #endregion

        #region 私有成员

        #endregion

        public PageResult<TeamitemDto> GetItems(PageInput<ConditionDTO> input)
        {
            Expression<Func<teamitems, items, TeamitemDto>> select = (a, b) => new TeamitemDto
            {
                GoodsId = b.GoodsId,
                HasFilter = b.HasFilter,
                Platform = b.Platform,
                GoodsUrl = b.GoodsUrl,
                Extensions = Newtonsoft.Json.JsonConvert.DeserializeObject<List<TeamItemExtension>>(a.ExtensionJson)
            };

            var search = input.Search;
            select = select.BuildExtendSelectExpre();

            var q_titem = GetIQueryable();
            var q = from a in q_titem.AsExpandable()
                    join b in Db.GetIQueryable<items>() on a.ItemId equals b.Id into ab
                    from b in ab.DefaultIfEmpty()
                    select @select.Invoke(a, b);

            int state = int.Parse(search.Keyword);

            //查询对应状态
            var where = LinqHelper.True<TeamitemDto>();
            if (state == 0)
            {
                where = where.And(c => c.State == state || c.State == (int)TeamItemState.已发布比价);
            }
            else {
                where = where.And(c => c.State == state);
            }

            where = where.And(c => c.TeamId == _operator.TeamId);

            var list = q.Where(where).GetPageResultAsync(input).Result;

            return list;

        }


        public AjaxResult AddItem(TeamitemDto model)
        {
            model.Extensions = new List<TeamItemExtension>();

            for (int i = 0; i < 5; i++)
                model.Extensions.Add(new TeamItemExtension() { Platform = model.Platform });

            if (string.IsNullOrEmpty(model.ItemId))
            {
                var item = Db.GetIQueryable<items>().FirstOrDefault(c => c.GoodsId == model.GoodsId);
                if (item == null)
                {
                    item = new items()
                    {
                        GoodsId = model.GoodsId,
                        GoodsUrl = model.GoodsUrl,
                        CreateTime = DateTime.Now,
                        CreatorId = _operator.UserId,
                        Deleted = false,
                        HasFilter = false,
                        Id = IdHelper.GetId(),
                        Platform = 0
                    };

                    item.GoodsUrl = string.Empty;
                    switch (model.Platform)
                    {
                        case (int)ItemPlatform.Taobao:
                            item.GoodsUrl = $"https://item.taobao.com/item.htm?id={item.GoodsId}";
                            break;
                        case (int)ItemPlatform.Jd:
                            item.GoodsUrl = $"https://item.jd.com/{item.GoodsId}.html";
                            break;
                        case (int)ItemPlatform.ALBB:
                            item.GoodsUrl = $"https://detail.1688.com/offer/{item.GoodsId}.html";
                            break;
                    }

                    if (Db.Insert<items>(item) <= 0)
                    {
                        return Error("商品添加失败！");
                    }
                }

                model.ItemId = item.Id;
            }

            //设置为初选
            int row = Db.Insert<teamitems>(new teamitems()
            {
                State = 0,
                CreateTime = DateTime.Now,
                CreatorId = _operator.UserId,
                Deleted = false,
                ExtensionJson = Newtonsoft.Json.JsonConvert.SerializeObject(model.Extensions),
                Id = IdHelper.GetId(),

                TeamId = _operator.TeamId,
                UserId = _operator.UserId,

                Price = model.Price,
                ItemImg = model.ItemImg,
                Sales = model.Sales,
                Title = model.Title,

                ItemId = model.ItemId
            });

            if (row <= 0)
                return Error("商品信息添加失败！");

            return Success();
        }


        public  AjaxResult RemoveItem(string goodsId)
        {
            var item = Db.GetIQueryable<items>().FirstOrDefault(c => c.GoodsId == goodsId);

            int row= Db.Delete<teamitems>(c => c.ItemId == item.Id && c.TeamId == _operator.TeamId);
            if (row > 0)
                return Success();
            return Error();

        }
        public AjaxResult SetItem(TeamitemDto model)
        {
            //if (!string.IsNullOrEmpty(model.RivalGoodsId))
            //{
            //    if (model.RivalGoodsId.Contains("."))
            //    {
            //        model.RivalGoodsId = Regex.Match(model.RivalGoodsId + "&", "id=(.*?)&").Groups[1].Value;
            //    }
            //}
            int row = Db.Update<teamitems>(c => c.Id == model.Id, (item) =>
            {
                item.ExtensionJson = Newtonsoft.Json.JsonConvert.SerializeObject(model.Extensions);
                item.RivalGoodsId = model.RivalGoodsId;
                item.RivalPLCount = model.RivalPLCount;
                item.RivalPrice = model.RivalPrice;
                item.RivalTitle = model.RivalTitle;
            });

            if (row > 0)
                return Success();
            return Error("操作失败！");
        }


        public AjaxResult SetState(string id, int state)
        {
            //删除
            if (state == 4)
            {
                return DeleteItem(id);
            }

            var priceUserId = Db.GetIQueryable<teamitems>().FirstOrDefault(c => c.Id == id).PriceTaskUserId;

           var result= Db.RunTransaction(() =>
            {
                int row = Db.Update<teamitems>(c => c.Id == id, (item) =>
                {
                    item.State = state;
                });

                if (row <= 0)
                    throw new Exception("任务状态设置失败！");
                //同步更新比价任务状态
                if ((Entity.Enum.TeamItemState)state == TeamItemState.待修改)
                {
                    row = Db.Update<pricetasklog>(c => c.UserId == priceUserId && c.TeamItemId == id, (item) =>
                    {
                        item.State = PriceTaskState.待修改;
                    });

                    if (row <= 0)
                        throw new Exception("比价任务设置失败！");
                }


                if ((Entity.Enum.TeamItemState)state == TeamItemState.精选)
                {
                    row = Db.Update<pricetasklog>(c => c.UserId == priceUserId && c.TeamItemId == id, (item) =>
                    {
                        item.State = PriceTaskState.比价完成;
                    });

                    if (row <= 0)
                        throw new Exception("比价任务设置失败！");
                }
            });

            if (result.Success)
            { 
            return Success("更新成功");
            }
            return Error("操作失败！");
        }


        public AjaxResult DeleteItem(string id)
        {
           
            string itemId = Db.GetIQueryable<teamitems>().FirstOrDefault(c => c.Id == id)?.ItemId;

            var result = Db.RunTransaction(() =>
            {
                var row = Db.Delete<teamitems>(c => c.Id == id);

                if (row <= 0)
                {
                    throw new Exception("操作失败！");
                }

                row = Db.Update<itemlabels>(c => c.ItemsId == itemId && c.TeamId == _operator.TeamId, (item) =>
                {
                    //item.IsScreening = false;
                    item.IsAdded = false;
                });

                //if (row <= 0)
                //{
                //    throw new Exception($"删除失败！");
                //}

            });

            if (result.Success)
            {
                return Success();
            }

            return Error(result.ex.Message);
        }
    }
}