kxs-admin/AppStart/Helper/InstallmentDeductionService.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Threading;
using MySystem.Models;
using Library;

namespace MySystem
{
    /// <summary>
    /// 分期扣款(每月20号执行)
    /// </summary>
    public class InstallmentDeductionService
    {
        public readonly static InstallmentDeductionService Instance = new InstallmentDeductionService();
        private InstallmentDeductionService()
        { }

        public void Start()
        {
            Thread th = new Thread(doSomething);
            th.IsBackground = true;
            th.Start();
        }

        public void doSomething()
        {
            while (true)
            {
                if (DateTime.Now.Hour < 20)
                {
                    try
                    {
                        string check = function.ReadInstance("/InstallmentDeduction/check" + DateTime.Now.ToString("yyyy-MM-dd") + ".txt");
                        if (string.IsNullOrEmpty(check))
                        {
                            function.WritePage("/InstallmentDeduction/", "check" + DateTime.Now.ToString("yyyy-MM-dd") + ".txt", DateTime.Now.ToString("HH:mm:ss"));
                            WebCMSEntities db = new WebCMSEntities();

                            var info = db.ToChargeBackRecord.Where(m => m.Sort > 0 && m.Status == 0 && m.ChargeType == 2).ToList();//分期扣款记录
                            foreach (var items in info)
                            {
                                var userAccount = db.UserAccount.FirstOrDefault(m => m.Id == items.UserId) ?? new UserAccount();
                                var record = info.FirstOrDefault(m => m.Id == items.Id);
                                if (userAccount.BalanceAmount >= record.ChargeAmount)
                                {
                                    var userAccountRecord = db.UserAccountRecord.Add(new UserAccountRecord
                                    {
                                        CreateDate = DateTime.Now,
                                        UserId = items.UserId,
                                        BeforeBalanceAmount = userAccount.BalanceAmount,
                                        AfterBalanceAmount = userAccount.BalanceAmount - record.ChargeAmount,
                                        ChangeAmount = record.ChargeAmount,
                                        ChangeType = 201,//分期扣款(201 分期扣款 202 普通预扣款)
                                        Remark = "分期扣款",

                                    }).Entity;
                                    var toChargeBackRecordSub = db.ToChargeBackRecordSub.FirstOrDefault(m => m.Id == record.Sort) ?? new ToChargeBackRecordSub();
                                    var toChargeByStage = db.ToChargeByStage.FirstOrDefault(m => m.Id == toChargeBackRecordSub.ParentId && record.TimeNumber > m.QueryCount) ?? new ToChargeByStage();
                                    record.Status = 1;
                                    toChargeBackRecordSub.Status = 1;
                                    toChargeByStage.QueryCount += 1;
                                    if (toChargeByStage.TimeNumber == toChargeByStage.QueryCount)
                                    {
                                        toChargeByStage.Status = 1;
                                    }
                                    if (userAccount.ToChargeAmount >= record.ChargeAmount)
                                    {
                                        userAccount.ToChargeAmount -= record.ChargeAmount;//分期扣款
                                    }
                                    userAccount.BalanceAmount -= record.ChargeAmount;//扣减余额
                                }
                                if (record.Status == 1)
                                {
                                    var toChargeBackRecordSub = db.ToChargeBackRecordSub.FirstOrDefault(m => m.Id == record.Sort) ?? new ToChargeBackRecordSub();
                                    var toChargeByStage = db.ToChargeByStage.FirstOrDefault(m => m.Id == toChargeBackRecordSub.ParentId && record.TimeNumber > m.QueryCount) ?? new ToChargeByStage();
                                    if (toChargeByStage.Id > 0)
                                    {
                                        var toChargeBackRecordSubs = db.ToChargeBackRecordSub.FirstOrDefault(m => m.Status == 0 && m.ParentId == toChargeByStage.Id) ?? new ToChargeBackRecordSub();
                                        if (toChargeBackRecordSubs.Id > 0)
                                        {
                                            userAccount.ToChargeAmount += toChargeBackRecordSubs.ChargeAmount;//增加预扣款
                                            var toChargeBackRecord = db.ToChargeBackRecord.Add(new ToChargeBackRecord
                                            {
                                                CreateDate = DateTime.Now,
                                                UserId = toChargeByStage.UserId,
                                                ChargeAmount = toChargeBackRecordSubs.ChargeAmount,
                                                ChargeType = 2,//分期扣款
                                                Remark = "分期扣款",

                                            }).Entity;
                                        }
                                    }
                                }
                            }
                            db.SaveChanges();

                        }
                    }
                    catch (Exception ex)
                    {
                        function.WriteLog(DateTime.Now.ToString() + ":" + ex.ToString(), "执行分期扣费异常");
                    }
                }
                Thread.Sleep(1000);
            }
        }
    }
}