package com.ruoyi.staff.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.base.BaseException;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.project.system.domain.SysDept;
import com.ruoyi.project.system.mapper.SysDeptMapper;
import com.ruoyi.project.system.service.ISysDictDataService;
import com.ruoyi.staff.dto.PersonalAttendanceRecordsDto;
import com.ruoyi.staff.dto.StaffOnJobDto;
import com.ruoyi.staff.mapper.StaffOnJobMapper;
import com.ruoyi.staff.pojo.PersonalAttendanceRecords;
import com.ruoyi.staff.mapper.PersonalAttendanceRecordsMapper;
import com.ruoyi.staff.pojo.StaffOnJob;
import com.ruoyi.staff.service.PersonalAttendanceRecordsService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.List;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 芯导软件（江苏）有限公司
 * @since 2026-02-09 01:20:07
 */
@Service
public class PersonalAttendanceRecordsServiceImpl extends ServiceImpl<PersonalAttendanceRecordsMapper, PersonalAttendanceRecords> implements PersonalAttendanceRecordsService {
    @Autowired
    private PersonalAttendanceRecordsMapper personalAttendanceRecordsMapper;

    @Autowired
    private StaffOnJobMapper staffOnJobMapper;

    @Autowired
    private ISysDictDataService dictDataService;

    @Autowired
    private SysDeptMapper sysDeptMapper;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public int add(PersonalAttendanceRecords personalAttendanceRecords) {
        // 当前时间
        LocalDate currentDate = LocalDate.now();

        // 首先根据用户ID查询员工信息
        QueryWrapper<StaffOnJob> staffQueryWrapper = new QueryWrapper<>();
        staffQueryWrapper.eq("staff_no", SecurityUtils.getUsername());
        StaffOnJob staffOnJob = staffOnJobMapper.selectOne(staffQueryWrapper);
        if (staffOnJob == null) {
            throw new BaseException("当前用户没有对应的员工信息");
        }

        // 当前时间
        LocalDateTime currentDateTime = LocalDateTime.now();

        // 如果打卡时间超过考勤下班时间不能打卡
        // 获取考勤下班时间点
        String[] timeConfigs = getAttendanceTimeConfig();
        String timeConfig = timeConfigs[1];
        String[] timeParts = timeConfig.split(":");
        int standardHour = Integer.parseInt(timeParts[0]);
        int standardMinute = Integer.parseInt(timeParts[1]);
        // 当前时间
        int actualHour = currentDateTime.getHour();
        int actualMinute = currentDateTime.getMinute();
        // 判断打卡时间是否晚于当前时间
        if (actualHour > standardHour || (actualHour == standardHour && actualMinute > standardMinute)) {
            throw new BaseException("打卡时间不能晚于下班时间");
        }

        // 根据员工ID和当前日期查询打卡记录
        QueryWrapper<PersonalAttendanceRecords> attendanceQueryWrapper = new QueryWrapper<>();
        attendanceQueryWrapper.eq("staff_on_job_id", staffOnJob.getId())
                .eq("date", currentDate);
        PersonalAttendanceRecords attendanceRecord = personalAttendanceRecordsMapper.selectOne(attendanceQueryWrapper);
        // 根据字典设置的考勤时间判断迟到早退
        if (attendanceRecord == null) {
            // 不存在打卡记录，创建新记录
            personalAttendanceRecords.setStaffOnJobId(staffOnJob.getId());
            personalAttendanceRecords.setDate(currentDate);
            personalAttendanceRecords.setWorkStartAt(currentDateTime);
            personalAttendanceRecords.setStatus(determineAttendanceStatus(personalAttendanceRecords, true));
            personalAttendanceRecords.setRemark(personalAttendanceRecords.getRemark());
            personalAttendanceRecords.setTenantId(staffOnJob.getTenantId());
            return personalAttendanceRecordsMapper.insert(personalAttendanceRecords);
        } else {
            if (attendanceRecord.getWorkEndAt() == null) {
                // 更新工作结束时间和工作时长
                attendanceRecord.setWorkEndAt(currentDateTime);
                // 计算工作时长（精确到分钟，保留2位小数）
                LocalDateTime startTime = attendanceRecord.getWorkStartAt();
                LocalDateTime endTime = attendanceRecord.getWorkEndAt();
                // 计算两个时间之间的分钟数
                long totalMinutes = java.time.Duration.between(startTime, endTime).toMinutes();
                BigDecimal workHours = BigDecimal.valueOf(totalMinutes)
                        .divide(BigDecimal.valueOf(60), 2, RoundingMode.HALF_UP);
                attendanceRecord.setWorkHours(workHours);
                // 更新考勤状态
                attendanceRecord.setStatus(determineAttendanceStatus(attendanceRecord, false));
                return personalAttendanceRecordsMapper.updateById(attendanceRecord);
            } else {
                throw new BaseException("您已经打过卡了,无需重复打卡!!!");
            }
        }
    }

    // 获取考勤时间配置
    private String[] getAttendanceTimeConfig() {
        String[] timeConfigs = new String[2];
        try {
            String dictType = "sys_work_time";

            // 获取上班时间配置，默认为09:00
            String startTimeConfig = dictDataService.selectDictLabel(dictType, "start_at");
            timeConfigs[0] = (startTimeConfig == null || startTimeConfig.trim().isEmpty()) ? "09:00" : startTimeConfig;

            // 获取下班时间配置，默认为18:00
            String endTimeConfig = dictDataService.selectDictLabel(dictType, "end_at");
            timeConfigs[1] = (endTimeConfig == null || endTimeConfig.trim().isEmpty()) ? "18:00" : endTimeConfig;

            return timeConfigs;
        } catch (Exception e) {
            timeConfigs[0] = "09:00"; // 默认上班时间
            timeConfigs[1] = "18:00"; // 默认下班时间
            return timeConfigs;
        }
    }

    // 根据实际时间和是否上班时间判断考勤状态
    // 0 正常 1 迟到 2 早退 3 迟到早退 4 缺勤
    private Integer determineAttendanceStatus(PersonalAttendanceRecords attendanceRecord, boolean isStart) {
        LocalDateTime actualTime = isStart ? attendanceRecord.getWorkStartAt() : attendanceRecord.getWorkEndAt();
        try {
            // 获取考勤时间配置
            String[] timeConfigs = getAttendanceTimeConfig();
            String timeConfig = isStart ? timeConfigs[0] : timeConfigs[1];

            // 解析标准时间
            String[] timeParts = timeConfig.split(":");
            int standardHour = Integer.parseInt(timeParts[0]);
            int standardMinute = Integer.parseInt(timeParts[1]);

            // 获取实际时间的时分
            int actualHour = actualTime.getHour();
            int actualMinute = actualTime.getMinute();

            // 判断状态
            if (isStart) {
                // 上班打卡：超过标准时间算迟到
                if (actualHour > standardHour || (actualHour == standardHour && actualMinute > standardMinute)) {
                    return 1; // 迟到
                }
            } else {
                // 下班打卡：早于标准时间算早退
                if (actualHour < standardHour || (actualHour == standardHour && actualMinute < standardMinute)) {
                    if (attendanceRecord.getStatus() == 1) {
                        return 3; // 迟到早退
                    }
                    return 2; // 早退
                }
            }

            return 0; // 正常

        } catch (Exception e) {
            // 如果获取配置失败，默认返回正常状态
            log.warn("获取考勤时间配置失败，使用默认状态：" + e.getMessage());
            return 0;
        }
    }

    @Override
    public IPage<PersonalAttendanceRecordsDto> listPage(Page page, PersonalAttendanceRecordsDto personalAttendanceRecordsDto) {
        boolean admin = SecurityUtils.isAdmin(SecurityUtils.getUserId());
        if (!admin) {
            QueryWrapper<StaffOnJob> staffQueryWrapper = new QueryWrapper<>();
            staffQueryWrapper.eq("staff_no", SecurityUtils.getUsername());
            StaffOnJob staffOnJob = staffOnJobMapper.selectOne(staffQueryWrapper);
            if (staffOnJob == null) {
                return new Page<>(page.getCurrent(), page.getSize(), 0);
            }
            personalAttendanceRecordsDto.setStaffOnJobId(staffOnJob.getId());
        }

        return personalAttendanceRecordsMapper.listPage(page,personalAttendanceRecordsDto);
    }

    @Override
    public PersonalAttendanceRecordsDto todayInfo(PersonalAttendanceRecordsDto personalAttendanceRecordsDto) {
        // 获取当前日期
        LocalDate currentDate = LocalDate.now();

        // 首先根据用户ID查询员工信息
        QueryWrapper<StaffOnJob> staffQueryWrapper = new QueryWrapper<>();
        staffQueryWrapper.eq("staff_no", SecurityUtils.getUsername());
        StaffOnJob staffOnJob = staffOnJobMapper.selectOne(staffQueryWrapper);

        if (staffOnJob == null) {
            return null; // 当前用户没有对应的员工信息
        }

        // 根据员工ID和当前日期查询打卡记录
        QueryWrapper<PersonalAttendanceRecords> attendanceQueryWrapper = new QueryWrapper<>();
        attendanceQueryWrapper.eq("staff_on_job_id", staffOnJob.getId())
                .eq("date", currentDate);
        PersonalAttendanceRecords attendanceRecord = personalAttendanceRecordsMapper.selectOne(attendanceQueryWrapper);

        // 返回参数
        PersonalAttendanceRecordsDto resultDto = new PersonalAttendanceRecordsDto();

        if (attendanceRecord != null) {
            // 如果有打卡记录，复制打卡记录信息
            BeanUtils.copyProperties(attendanceRecord, resultDto);
        }

        // 员工相关信息
        resultDto.setStaffName(staffOnJob.getStaffName());
        resultDto.setStaffNo(staffOnJob.getStaffNo());
        resultDto.setDeptId(staffOnJob.getSysDeptId() != null ? staffOnJob.getSysDeptId() : null);
        SysDept dept = sysDeptMapper.selectDeptById(staffOnJob.getSysDeptId());
        resultDto.setDeptName(dept != null ? dept.getDeptName() : null);

        return resultDto;
    }

    @Override
    public void export(HttpServletResponse response, PersonalAttendanceRecordsDto personalAttendanceRecordsDto) {
        boolean admin = SecurityUtils.isAdmin(SecurityUtils.getUserId());
        if (!admin) {
            QueryWrapper<StaffOnJob> staffQueryWrapper = new QueryWrapper<>();
            staffQueryWrapper.eq("staff_no", SecurityUtils.getUsername());
            StaffOnJob staffOnJob = staffOnJobMapper.selectOne(staffQueryWrapper);
            if (staffOnJob == null) {
                throw new ServiceException("没有员工信息，无法导出考勤记录");
            }
            personalAttendanceRecordsDto.setStaffOnJobId(staffOnJob.getId());
        }
        List<PersonalAttendanceRecordsDto> personalAttendanceRecords = personalAttendanceRecordsMapper.listPage(new Page<>(1, Integer.MAX_VALUE), personalAttendanceRecordsDto).getRecords();
        ExcelUtil<PersonalAttendanceRecordsDto> util = new ExcelUtil<PersonalAttendanceRecordsDto>(PersonalAttendanceRecordsDto.class);
        util.exportExcel(response, personalAttendanceRecords, "考勤记录导出");
    }
}