using Dlhis.Canteen.Dishes.Request;
using Dlhis.Canteen.Order.Request;
using Dlhis.Canteen.Order.Response;
using Dlhis.Entity.Basic.Entity;
using Dlhis.Entity.Canteen.Entities;
using Dlhis.Entity.Canteen.Enums;
using Kurisu.AspNetCore.Utils.Extensions;
using Kurisu.AspNetCore.Utils;
using Kurisu.Core.DataAccess.Dto;
using Kurisu.SqlSugar.Services;
using Kurisu.Core.User.Abstractions;
using Dlhis.Canteen.Setting.Services;
using Dlhis.Basic.Api;
using Kurisu.SqlSugar.Extensions;
using SqlSugar;
using Mapster;

namespace Dlhis.Canteen.Order.Services.Implements;

public class BookingOrderService : BaseOrderService, IBookingOrderService
{
    private readonly IDbContext _dbContext;
    private readonly ICurrentUser _currentUser;
    private readonly IDisheMenuApi _disheMenuApi;

    public BookingOrderService(ICanteenSettingService canteenSettingService, IDisheMenuApi disheMenuApi) : base(canteenSettingService)
    {
        _disheMenuApi = disheMenuApi;
    }

    public async Task<BookingResponse> BookingAsync(BookingMealRequest request)
    {
        var gainfo = await CheckExistsMyBookingsAsync(request.BookingDate, request.ShiftType);

        var businessPlace = await _dbContext.Queryable<BusinessPlaceEntity>().Where(x => x.Code == request.BusinessPlaceCode).FirstAsync();

        //预定时间
        var now = DateTime.Now;

        var bookingDeadline = await GetSettingAsync<TimeOnly?>(CanteenSettingItemEnumType.BookingDeadline) ?? new TimeOnly(20, 30, 00);
        var dealLine = DateTime.Today.Add(bookingDeadline.ToTimeSpan());
        (now >= dealLine).ThrowIfTrue("超出订餐时间");

        //菜单存在
        var menuDetailResult = await _disheMenuApi.GetBookingDishesDetailAsync(request.BookingDate, request.BusinessPlaceCode, (int)request.ShiftType, request.DishesCode);
        var menuDetail = menuDetailResult.Data;
        menuDetail.ThrowIfNull("预定失败,菜品已经下架");

        var order = new CanteenOrderEntity
        {
            RequestJson = request.ToJson(),
            ThirdNo = string.Empty,
            Type = BalanceRecordTypeEnumType.Out,
            ApplicationType = CanteenApplicaitonTypeEnumType.Booking,
            Name = gainfo.Name,
            Source = request.Source,
            UserNo = gainfo.No,
            UserCode = gainfo.Code,
            Amount = -Math.Abs(menuDetail.Price * request.Number),
            BusinessPlaceCode = request.BusinessPlaceCode,
            BusinessShiftCode = null,
            ShiftType = request.ShiftType,
            CostDate = now.Date,
            CostId = gainfo.CostId,
            DepartmentNo = gainfo.DepartmentNo,
            DeviceUniqueNo = string.Empty,
            DeliveryAddress = request.DeliveryAddress,

            No = SnowFlakeHelper.Instance.NextId().ToString(),
            SubsidiesFromMonth = now.ToString("yyyyMM"),
            IsOffline = false,
            IsCostCrossTenant = await GetSettingAsync<bool>(CanteenSettingItemEnumType.AllowCrossTenant),

            OriginTenantId = gainfo.Factory,//人员可能跨基地消费

            Status = BalanceRecordStatusEnumType.Valid,
            OrderStatus = CanteenOrderStatusEnumType.Success,

            CostDateTime = now,

            //标识当前消费的基地
            TenantId = businessPlace.TenantId,
        };

        var orderId = await _dbContext.InsertReturnIdentityAsync(order);
        await ContinueUpdateAsync(async () =>
        {
            await _disheMenuApi.GetBookingDishesDetailAsync(request.BookingDate, request.BusinessPlaceCode, (int)request.ShiftType, request.DishesCode);
            var menuDetail = menuDetailResult.Data;
            menuDetail.ThrowIfNull("预定失败,菜品已经下架");
            menuDetail.Number -= request.Number;

            (menuDetail.Number < 0).ThrowIfTrue($"{menuDetail.DishesName}已售罄");

            //餐补
            if (request.Source == BalanceRecordSourceEnumType.LocalTenantSubsidies)
            {

                var mealInfo = await _dbContext.Queryable<GainfoMealEntity>().Where(x => x.UserNo == order.UserNo).FirstAsync();
                if (mealInfo == null)
                {
                    await _dbContext.InsertAsync(new GainfoMealEntity
                    {
                        Balance = 0,
                        BalanceOfRecharge = 0,
                        BalanceOfSubsidies = 0,
                        UserCode = gainfo.Code,
                        UserNo = gainfo.No,
                        Version = 0,
                    });

                    (mealInfo == null).ThrowIfTrue("余额不足,无法消费");
                }
                //金额+-
                mealInfo.Balance += order.Amount;
                (mealInfo.Balance < 0).ThrowIfTrue("余额不足,无法消费");

                var effectMeal = await _dbContext.Updateable<GainfoMealEntity>()
                            .SetColumns(x => x.Balance == mealInfo.Balance)
                            .SetColumns(x => x.Version == x.Version + 1)
                            .Where(x => x.UserNo == order.UserNo && x.Version == mealInfo.Version)//必须与查询时的version一致
                            .ExecuteCommandAsync();

                if (effectMeal <= 0) throw new VersionExceptions("更新版本冲突");
            }


            var effectMenu = await _dbContext.Updateable<DishesMenuEntity>()
                          .SetColumns(x => x.Number == menuDetail.Number)
                          .SetColumns(x => x.Version == x.Version + 1)
                          .SetColumns(x => x.ModifiedTime == now)
                          .Where(x => x.Date == menuDetail.Date
                          && x.ShiftType == request.ShiftType
                          && x.BusinessPlaceCode == request.BusinessPlaceCode
                          && x.DishesCode == request.DishesCode
                          && x.Version == menuDetail.Version
                          )
                          .ExecuteCommandAsync();

            if (effectMenu <= 0) throw new VersionExceptions("更新版本冲突");

            //写入记录
            var balanceRecord = order.Adapt<BalanceRecordEntity>();
            await _dbContext.InsertAsync(balanceRecord);

            await _dbContext.InsertAsync(new CanteenOrderDetailEntity
            {
                OrderNo = order.No,
                DishesCode = request.DishesCode,
                Price = menuDetail.Price,
                //Unit
                Number = 1,
            });

        }, 10);


        return new BookingResponse
        {
            No = order.No,
            CreateTime = order.CreateTime,
            Source = order.Source,
            Amount = Math.Abs(order.Amount)
        };
    }


    public async Task<Pagination<OrderBookingResponse>> GetBookingPageAsync(OrderBookingPageRequest request)
    {
        var page = await _dbContext.Queryable<CanteenOrderEntity>()
            .LeftJoin<GainfoEntity>((x, ga) => x.UserNo == ga.No)
           .Select(x => new OrderBookingResponse
           {
               No = x.No,
               DeliveryAddress = x.DeliveryAddress,
               Remark = x.Remark,
               Amount = x.Amount
           })
           .ToPageListAsync(request);

        return page;
    }

    public async Task CancelOrderAsync()
    {
        throw new NotImplementedException();
    }







    /// <summary>
    /// 检查我的订餐是否存在,存在抛出异常
    /// </summary>
    /// <param name="bookingDate"></param>
    /// <param name="shiftType"></param>
    /// <returns></returns>
    private async Task<GainfoEntity> CheckExistsMyBookingsAsync(DateTime bookingDate, ShiftEnumType shiftType)
    {
        var subjectId = _currentUser.GetIntSubjectId();
        var gainfo = await _dbContext.Queryable<GainfoEntity>().Where(x => x.IdentityUserId == subjectId).FirstAsync();
        var jinkoCode = _currentUser.GetUserClaim("jinko-code") ?? string.Empty;
        if (jinkoCode.IsPresent())
        {
            gainfo = await _dbContext.Queryable<GainfoEntity>().Where(x => x.Code == jinkoCode).FirstAsync();
        }

        var start = bookingDate.Date.AddDays(-1);
        var end = start.AddDays(1).AddSeconds(-1);

        var exists = await _dbContext.Queryable<CanteenOrderEntity>()
              .Where(x => x.ApplicationType == CanteenApplicaitonTypeEnumType.Booking)
              .Where(x => x.ShiftType == shiftType)
              .Where(x => x.UserNo == gainfo.No)
              .Where(x => x.CreateTime >= start && x.CreateTime <= end)
              .AnyAsync();

        exists.ThrowIfTrue("不可重复订餐");

        return gainfo;
    }
}