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

namespace BBWY.Server.Business
{
    public class StatisticsBusiness : BaseBusiness, IDenpendency
    {
        private IList<Enums.OrderState> invalidOrderStateList;

        public StatisticsBusiness(IFreeSql fsql, NLog.ILogger logger, IIdGenerator idGenerator) : base(fsql, logger, idGenerator)
        {
            invalidOrderStateList = new List<Enums.OrderState>() { Enums.OrderState.待付款, Enums.OrderState.已取消 };
        }

        public OrderAchievementResponse GetOrderAchievementStatistics(OrderAchievementRequest request)
        {
            request.EndTime = request.EndTime.Date.AddDays(1);
            var response = fsql.Select<Order, OrderCost>().LeftJoin((o, oc) => o.Id == oc.OrderId)
                                                          .Where((o, oc) => o.ShopId == request.ShopId &&
                                                                            o.OrderState != null &&
                                                                            !invalidOrderStateList.Contains(o.OrderState.Value) &&
                                                                            o.StartTime >= request.StartTime &&
                                                                            o.StartTime < request.EndTime)
                                                         .ToAggregate((o, oc) => new OrderAchievementResponse()
                                                         {
                                                             OrderCount = o.Count(),
                                                             Profit = oc.Sum(oc.Key.Profit),
                                                             SaleAmount = o.Sum(o.Key.OrderPayment),
                                                             DeliveryExpressFreight = oc.Sum(oc.Key.DeliveryExpressFreight),
                                                             PlatformCommissionAmount = oc.Sum(oc.Key.PlatformCommissionAmount),
                                                             PurchaseAmount = oc.Sum(oc.Key.PurchaseAmount)
                                                         });
            return response;
        }
    }
}