package com.ruoyi.web.controller.task;


import com.ruoyi.system.model.TBill;
import com.ruoyi.system.model.TContract;
import com.ruoyi.system.service.TBillService;
import com.ruoyi.system.service.TContractService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAdjusters;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Random;
import java.util.stream.Collectors;

/**
 * @author zhibing.pu
 * @date 2023/7/11 8:39
 */
@Component
public class TaskUtil {
    @Autowired
    private TContractService contractService;
    @Autowired
    private TBillService billService;




    // 每天凌晨00点执行的定时任务 用于合同生成第一笔账单
    @Scheduled(cron = "0 0 0 * * ?")
    public void dayOfFirstBill() {
        try {
            // 查询所有已签订的合同并且未生成第一笔账单的
            List<TContract> list = contractService.lambdaQuery().eq(TContract::getStatus, 4).isNull(TContract::getFirstPayTime).list();
            List<TBill> bills = new ArrayList<>();
            for (TContract contract : list) {
                contract.setFirstPayTime(contract.getStartTime().plusDays(10));
                // 第一次应缴费日期
                LocalDateTime firstPayTime = contract.getStartTime().plusDays(10);
                LocalDate localDate = contract.getStartTime().plusDays(10).toLocalDate();
                LocalDate now = LocalDate.now();
                // 如果应缴费日期和当前时间不相同 跳过
                if (!localDate.equals(now)) {
                    continue;
                }
                TBill rentBill = new TBill();
                rentBill.setContractId(contract.getId());
                rentBill.setContractNumber(contract.getContractNumber());
                LocalDateTime startPayTime = contract.getStartPayTime();
                LocalDateTime endTime1 = contract.getEndTime();
                // 计算两个时间相差多少天
                long days = ChronoUnit.DAYS.between(startPayTime, endTime1)+1L;
                // 如果时间小于30天 需要计算每日租金
                if (days<30){
                    rentBill.setPayableFeesMoney(contract.getMonthRent().divide(new BigDecimal("30"),2,BigDecimal.ROUND_DOWN).multiply(new BigDecimal(days)));
                }else{
                    rentBill.setPayableFeesMoney(contract.getPayType().equals("1")?contract.getMonthRent():
                            contract.getPayType().equals("2")?contract.getMonthRent().multiply(new BigDecimal("3")):contract.getMonthRent().multiply(new BigDecimal("12")).setScale(2,BigDecimal.ROUND_DOWN));
                }
                rentBill.setPayableFeesTime(firstPayTime);
                rentBill.setPayFeesStatus("1");
                rentBill.setBillType("1");
                rentBill.setStartTime(contract.getStartPayTime());
                if ((contract.getEndTime().getYear() == contract.getStartTime().getYear()) && (contract.getEndTime().getMonth() == contract.getStartTime().getMonth())) {
                    // 如果同年同月 那么账单周期为合同结束时间
                    rentBill.setEndTime(contract.getEndTime());
                } else {
                    // 否则 取当月最后一天
                    LocalDateTime endTime = contract.getStartTime().with(TemporalAdjusters.lastDayOfMonth()).withSecond(59).withHour(23).withMinute(59);
                    rentBill.setEndTime(endTime);
                }
                // 租金账单
                bills.add(rentBill);
                // 押金账单
                TBill depositBill = new TBill();
                depositBill.setContractId(contract.getId());
                depositBill.setContractNumber(contract.getContractNumber());
                depositBill.setPayableFeesMoney(contract.getDeposit());
                depositBill.setPayableFeesTime(firstPayTime);
                depositBill.setPayFeesStatus("1");
                depositBill.setBillType("2");
                bills.add(depositBill);
            }
            contractService.updateBatchById(list);
            billService.saveBatch(bills);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // 每天凌晨00点执行的定时任务 用于生成合同期最后一笔账单
    @Scheduled(cron = "0 0 0 * * ?")
    public void dayOfEndBill() {
        try {
            // 查询所有已签订的合同并且已经生成第一笔账单的
            List<TContract> list = contractService.lambdaQuery().eq(TContract::getStatus, 4).isNotNull(TContract::getFirstPayTime).list();
            List<TBill> bills = new ArrayList<>();
            for (TContract contract : list) {
                TBill beforeBill = billService.lambdaQuery().eq(TBill::getContractId, contract.getId()).eq(TBill::getBillType, 1).orderByDesc(TBill::getCreateTime)
                        .last("limit 1").one();
                if (!(beforeBill.getEndTime().toLocalDate().equals(contract.getEndTime().toLocalDate()))&&beforeBill.getEndTime().plusMonths(1).with(TemporalAdjusters.lastDayOfMonth()).isAfter(contract.getEndTime())){
                    TBill tBill = new TBill();
                    tBill.setContractId(contract.getId());
                    tBill.setContractNumber(contract.getContractNumber());
                    tBill.setPayableFeesMoney(contract.getMonthRent());
                    tBill.setPayableFeesTime(LocalDateTime.now());
                    tBill.setPayFeesStatus("1");
                    tBill.setBillType("1");
                    tBill.setStartTime(beforeBill.getEndTime().plusMonths(1).with(TemporalAdjusters.firstDayOfMonth()));
                    tBill.setEndTime(contract.getEndTime());
                    bills.add(tBill);
                }
            }
            billService.saveBatch(bills);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // 每月15号凌晨执行的定时任务 用于生成租金账单
    @Scheduled(cron = "0 0 0 15 * ?")
    public void monthOfBill() {
        try {
            // 查询所有已签订的合同 且合同时间大于15号
            List<TContract> list = contractService.lambdaQuery().eq(TContract::getStatus, 4)
                    .isNotNull(TContract::getFirstPayTime)
                    .ge(TContract::getEndTime, LocalDateTime.now())
                    .list();
            List<TBill> bills = new ArrayList<>();
            for (TContract contract : list) {
                TBill beforeBill = billService.lambdaQuery().eq(TBill::getContractId, contract.getId()).eq(TBill::getBillType, 1).orderByDesc(TBill::getCreateTime)
                        .last("limit 1").one();
                if (beforeBill.getEndTime().toLocalDate().equals(contract.getEndTime().toLocalDate()))continue;
                if (beforeBill.getEndTime().plusMonths(1).with(TemporalAdjusters.lastDayOfMonth()).isBefore(contract.getEndTime())){
                    TBill tBill = new TBill();
                    tBill.setContractId(contract.getId());
                    tBill.setContractNumber(contract.getContractNumber());
                    tBill.setPayableFeesMoney(contract.getMonthRent());
                    tBill.setPayableFeesTime(LocalDateTime.now());
                    tBill.setPayFeesStatus("1");
                    tBill.setBillType("1");
                    tBill.setStartTime(beforeBill.getEndTime().plusMonths(1).with(TemporalAdjusters.firstDayOfMonth()));
                    tBill.setEndTime(beforeBill.getEndTime().plusMonths(1).with(TemporalAdjusters.lastDayOfMonth()));
                    bills.add(tBill);

                }
            }
            billService.saveBatch(bills);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    public static void main(String[] args) {
        LocalDateTime now = LocalDateTime.now().minusMonths(1).withDayOfMonth(31);
        System.err.println(now);
        LocalDateTime now2 = now.plusMonths(1);
        System.err.println(now2);

        LocalDateTime now1 = LocalDateTime.now();
        long days = ChronoUnit.DAYS.between(now, now1);
        long days2 = ChronoUnit.DAYS.between(now.plusDays(1), now1);

        System.err.println(days);
        System.err.println(days2);
//        LocalDateTime endTime = now.with(TemporalAdjusters.lastDayOfMonth()).withSecond(59).withHour(23).withMinute(59);
//
//        System.err.println(endTime);

    }

}