package com.ruoyi.lavorissue.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.approve.utils.StartAndEndDateDto;
import com.ruoyi.lavorissue.dto.StatisticsLaborIssue;
import com.ruoyi.lavorissue.mapper.LavorIssueMapper;
import com.ruoyi.lavorissue.pojo.LaborIssue;
import com.ruoyi.lavorissue.service.LavorIssueService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author :yys
 * @date : 2025/8/13 11:18
 */
@Service
@Slf4j
public class LavorIssueServiceImpl extends ServiceImpl<LavorIssueMapper, LaborIssue> implements LavorIssueService {

    @Autowired
    private LavorIssueMapper lavorIssueMapper;

    @Override
    public IPage<LaborIssue> listPage(Page page, LaborIssue laborIssue) {
        StartAndEndDateDto startAndEndDateDto = getStartAndEndDateDto(laborIssue.getSeason(), laborIssue.getIssueDate());
        laborIssue.setStartDate(startAndEndDateDto.getStartDate());
        laborIssue.setEndDate(startAndEndDateDto.getEndDate());
        IPage<LaborIssue> laborIssueIPage = lavorIssueMapper.listPage(page, laborIssue);
        return laborIssueIPage;
    }

    public StartAndEndDateDto getStartAndEndDateDto(Integer season,Date payDate){
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        StartAndEndDateDto startAndEndDateDto = new StartAndEndDateDto();
        if(season != null){
            Calendar calendar = Calendar.getInstance();
            int currentYear = calendar.get(Calendar.YEAR);
            switch (season){
                case 1:
                    startAndEndDateDto.setStartDate(currentYear + "-01-01");
                    startAndEndDateDto.setEndDate(currentYear + "-03-31");
                    break;
                case 2:
                    startAndEndDateDto.setStartDate(currentYear + "-04-01");
                    startAndEndDateDto.setEndDate(currentYear + "-06-30");
                    break;
                case 3:
                    startAndEndDateDto.setStartDate(currentYear + "-07-01");
                    startAndEndDateDto.setEndDate(currentYear + "-09-30");
                    break;
                case 4:
                    startAndEndDateDto.setStartDate(currentYear + "-10-01");
                    startAndEndDateDto.setEndDate(currentYear + "-12-31");
                    break;
            }
        }
        if(payDate != null){
            Date lastDayOfMonth = getLastDayOfMonth(payDate);
            startAndEndDateDto.setStartDate(sdf.format(payDate));
            startAndEndDateDto.setEndDate(sdf.format(lastDayOfMonth));
        }
        return startAndEndDateDto;
    }

    @Override
    public StatisticsLaborIssue statistics(StatisticsLaborIssue req) throws Exception{
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        StatisticsLaborIssue statisticsLaborIssue = new StatisticsLaborIssue();
        StartAndEndDateDto startAndEndDateDto = getStartAndEndDateDto(req.getSeason(), req.getIssueDate());
        LambdaQueryWrapper<LaborIssue> laborIssueLambdaQueryWrapper = new LambdaQueryWrapper<>();
        if(req.getSeason() != null || req.getIssueDate() != null){
            laborIssueLambdaQueryWrapper.ge(LaborIssue::getIssueDate, startAndEndDateDto.getStartDate())
                    .le(LaborIssue::getIssueDate, startAndEndDateDto.getEndDate());
        }
        List<LaborIssue> laborIssues = lavorIssueMapper.selectList(laborIssueLambdaQueryWrapper);
        if(!CollectionUtils.isEmpty(laborIssues)){
            Long sum = laborIssues.stream()
                    .filter(laborIssue -> laborIssue.getAdoptedDate() != null)
                    .mapToLong(LaborIssue::getNum)
                    .sum();
            statisticsLaborIssue.setYlqNum(sum);
            statisticsLaborIssue.setWlqNum(laborIssues.stream()
                    .filter(laborIssue -> laborIssue.getAdoptedDate() == null)
                    .mapToLong(LaborIssue::getNum)
                    .sum());
            Date currentDate = new Date();
            Date parse = sdf.parse(sdf.format(currentDate));
            statisticsLaborIssue.setCsylqNum(laborIssues.stream()
                    .filter(laborIssue -> laborIssue.getIssueDate() != null
                            && laborIssue.getAdoptedDate() != null
                            && (laborIssue.getIssueDate().before(laborIssue.getAdoptedDate())))
                    .mapToLong(LaborIssue::getNum)
                    .sum());
            statisticsLaborIssue.setCswlqNum(laborIssues.stream()
                    .filter(laborIssue -> laborIssue.getIssueDate() != null
                            && laborIssue.getIssueDate().before(parse)
                            && laborIssue.getAdoptedDate() == null)
                    .mapToLong(LaborIssue::getNum)
                    .sum());
        }
        return statisticsLaborIssue;
    }

    public Date getLastDayOfMonth(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date); // 设置传入的Date
        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH)); // 设置为当月最后一天
        return calendar.getTime(); // 返回Date对象
    }
}