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package cn.iocoder.yudao.module.mes.service.safety;
 
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.mes.controller.admin.safety.vo.train.*;
import cn.iocoder.yudao.module.mes.dal.dataobject.safety.SafetyAccidentDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.safety.SafetyDrillDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.safety.SafetyTrainingDO;
import cn.iocoder.yudao.module.mes.dal.mysql.safety.SafetyAccidentMapper;
import cn.iocoder.yudao.module.mes.dal.mysql.safety.SafetyDrillMapper;
import cn.iocoder.yudao.module.mes.dal.mysql.safety.SafetyTrainingMapper;
import cn.iocoder.yudao.module.mes.enums.safety.*;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;
 
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.List;
 
import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.module.mes.enums.SafetyErrorCodeConstants.*;
 
/**
 * 安全生产 - 培训、演练、事故登记 Service
 *
 * <p>三类记录统一归档,供标准化台账导出使用。</p>
 *
 * @author 超级管理员
 */
@Service
@Validated
public class SafetyTrainingService {
 
    private static final DateTimeFormatter CODE_DATE = DateTimeFormatter.ofPattern("yyyyMMdd");
 
    @Resource
    private SafetyTrainingMapper trainingMapper;
    @Resource
    private SafetyRefResolver refResolver;
    @Resource
    private SafetyDrillMapper drillMapper;
    @Resource
    private SafetyAccidentMapper accidentMapper;
 
    // ==================== 培训 ====================
 
    public Long createTraining(SafetyTrainingSaveReqVO reqVO) {
        reqVO.setId(null);
        SafetyTrainingDO training = BeanUtils.toBean(reqVO, SafetyTrainingDO.class);
        training.setTitle(StrUtil.trim(reqVO.getTitle()));
        training.setTrainingType(StrUtil.blankToDefault(reqVO.getTrainingType(), SafetyTrainingTypeEnum.SAFETY.getType()));
        training.setTrainerId(reqVO.getTrainerId());
        training.setTrainer(reqVO.getTrainerId() == null ? ""
                : refResolver.requireEmployee(reqVO.getTrainerId(), SAFETY_EMPLOYEE_REQUIRED).getName());
        training.setParticipantCount(resolveCount(reqVO.getParticipantCount(), reqVO.getParticipants()));
        training.setRemark(reqVO.getRemark() == null ? "" : reqVO.getRemark().trim());
        trainingMapper.insert(training);
        return training.getId();
    }
 
    public void updateTraining(SafetyTrainingSaveReqVO reqVO) {
        validateTrainingExists(reqVO.getId());
        SafetyTrainingDO training = BeanUtils.toBean(reqVO, SafetyTrainingDO.class);
        training.setTitle(StrUtil.trim(reqVO.getTitle()));
        training.setParticipantCount(resolveCount(reqVO.getParticipantCount(), reqVO.getParticipants()));
        trainingMapper.updateById(training);
    }
 
    public void deleteTraining(Long id) {
        validateTrainingExists(id);
        trainingMapper.deleteById(id);
    }
 
    public SafetyTrainingDO getTraining(Long id) {
        return validateTrainingExists(id);
    }
 
    public PageResult<SafetyTrainingDO> getTrainingPage(SafetyTrainingPageReqVO reqVO) {
        return trainingMapper.selectPage(reqVO);
    }
 
    /**
     * 事故的主数据引用:所属车间 + 登记人
     */
    private void applyAccidentRefs(SafetyAccidentDO accident, SafetyAccidentSaveReqVO reqVO) {
        accident.setWorkshopId(reqVO.getWorkshopId());
        accident.setWorkshopName(reqVO.getWorkshopId() == null ? ""
                : refResolver.requireWorkshop(reqVO.getWorkshopId()).getName());
        accident.setReporterId(reqVO.getReporterId());
        accident.setReporter(reqVO.getReporterId() == null ? ""
                : refResolver.requireEmployee(reqVO.getReporterId(), SAFETY_EMPLOYEE_REQUIRED).getName());
    }
 
    /** 批量回填培训讲师最新姓名 */
    public void fillTrainers(List<SafetyTrainingDO> trainings) {
        if (CollUtil.isEmpty(trainings)) return;
        var employeeMap = refResolver.employeeMap(trainings.stream().map(SafetyTrainingDO::getTrainerId).toList());
        trainings.forEach(t -> {
            var e = employeeMap.get(t.getTrainerId());
            if (e != null) t.setTrainer(e.getName());
        });
    }
 
    /** 批量回填演练组织人最新姓名 */
    public void fillOrganizers(List<SafetyDrillDO> drills) {
        if (CollUtil.isEmpty(drills)) return;
        var employeeMap = refResolver.employeeMap(drills.stream().map(SafetyDrillDO::getOrganizerId).toList());
        drills.forEach(d -> {
            var e = employeeMap.get(d.getOrganizerId());
            if (e != null) d.setOrganizer(e.getName());
        });
    }
 
    /** 批量回填事故的车间名与登记人姓名 */
    public void fillAccidentRefs(List<SafetyAccidentDO> accidents) {
        if (CollUtil.isEmpty(accidents)) return;
        var workshopMap = refResolver.workshopMap(accidents.stream().map(SafetyAccidentDO::getWorkshopId).toList());
        var employeeMap = refResolver.employeeMap(accidents.stream().map(SafetyAccidentDO::getReporterId).toList());
        accidents.forEach(a -> {
            var w = workshopMap.get(a.getWorkshopId());
            if (w != null) a.setWorkshopName(w.getName());
            var e = employeeMap.get(a.getReporterId());
            if (e != null) a.setReporter(e.getName());
        });
    }
 
    public static void fillTrainingDisplay(SafetyTrainingDO training, SafetyTrainingRespVO respVO) {
        respVO.setTrainingTypeName(SafetyTrainingTypeEnum.getNameByType(training.getTrainingType()));
    }
 
    // ==================== 演练 ====================
 
    public Long createDrill(SafetyDrillSaveReqVO reqVO) {
        reqVO.setId(null);
        SafetyDrillDO drill = BeanUtils.toBean(reqVO, SafetyDrillDO.class);
        drill.setTitle(StrUtil.trim(reqVO.getTitle()));
        drill.setDrillType(StrUtil.blankToDefault(reqVO.getDrillType(), SafetyDrillTypeEnum.FIRE.getType()));
        drill.setOrganizerId(reqVO.getOrganizerId());
        drill.setOrganizer(reqVO.getOrganizerId() == null ? ""
                : refResolver.requireEmployee(reqVO.getOrganizerId(), SAFETY_EMPLOYEE_REQUIRED).getName());
        drill.setParticipantCount(resolveCount(reqVO.getParticipantCount(), reqVO.getParticipants()));
        drill.setRemark(reqVO.getRemark() == null ? "" : reqVO.getRemark().trim());
        drillMapper.insert(drill);
        return drill.getId();
    }
 
    public void updateDrill(SafetyDrillSaveReqVO reqVO) {
        validateDrillExists(reqVO.getId());
        SafetyDrillDO drill = BeanUtils.toBean(reqVO, SafetyDrillDO.class);
        drill.setTitle(StrUtil.trim(reqVO.getTitle()));
        drill.setParticipantCount(resolveCount(reqVO.getParticipantCount(), reqVO.getParticipants()));
        drillMapper.updateById(drill);
    }
 
    public void deleteDrill(Long id) {
        validateDrillExists(id);
        drillMapper.deleteById(id);
    }
 
    public SafetyDrillDO getDrill(Long id) {
        return validateDrillExists(id);
    }
 
    public PageResult<SafetyDrillDO> getDrillPage(SafetyDrillPageReqVO reqVO) {
        return drillMapper.selectPage(reqVO);
    }
 
    public static void fillDrillDisplay(SafetyDrillDO drill, SafetyDrillRespVO respVO) {
        respVO.setDrillTypeName(SafetyDrillTypeEnum.getNameByType(drill.getDrillType()));
    }
 
    // ==================== 事故 ====================
 
    public Long createAccident(SafetyAccidentSaveReqVO reqVO) {
        reqVO.setId(null);
        SafetyAccidentDO accident = BeanUtils.toBean(reqVO, SafetyAccidentDO.class);
        accident.setCode(accidentMapper.selectNextCode("AC" + LocalDate.now().format(CODE_DATE)));
        accident.setTitle(StrUtil.trim(reqVO.getTitle()));
        accident.setLevel(StrUtil.blankToDefault(reqVO.getLevel(), SafetyAccidentLevelEnum.GENERAL.getLevel()));
        accident.setStatus(StrUtil.blankToDefault(reqVO.getStatus(), SafetyAccidentStatusEnum.REPORTED.getStatus()));
        applyAccidentRefs(accident, reqVO);
        accident.setReportTime(reqVO.getReportTime() == null ? LocalDateTime.now() : reqVO.getReportTime());
        accident.setRemark(reqVO.getRemark() == null ? "" : reqVO.getRemark().trim());
        accidentMapper.insert(accident);
        return accident.getId();
    }
 
    public void updateAccident(SafetyAccidentSaveReqVO reqVO) {
        validateAccidentExists(reqVO.getId());
        SafetyAccidentDO accident = BeanUtils.toBean(reqVO, SafetyAccidentDO.class);
        accident.setCode(null);
        applyAccidentRefs(accident, reqVO);
        accidentMapper.updateById(accident);
    }
 
    public void deleteAccident(Long id) {
        validateAccidentExists(id);
        accidentMapper.deleteById(id);
    }
 
    public SafetyAccidentDO getAccident(Long id) {
        return validateAccidentExists(id);
    }
 
    public PageResult<SafetyAccidentDO> getAccidentPage(SafetyAccidentPageReqVO reqVO) {
        return accidentMapper.selectPage(reqVO);
    }
 
    public static void fillAccidentDisplay(SafetyAccidentDO accident, SafetyAccidentRespVO respVO) {
        respVO.setAccidentTypeName(SafetyAccidentTypeEnum.getNameByType(accident.getAccidentType()));
        respVO.setLevelName(SafetyAccidentLevelEnum.getNameByLevel(accident.getLevel()));
        respVO.setStatusName(SafetyAccidentStatusEnum.getNameByStatus(accident.getStatus()));
    }
 
    // ==================== 台账导出用查询 ====================
 
    public List<SafetyTrainingDO> listTrainingBetween(LocalDate begin, LocalDate end) {
        return trainingMapper.selectListBetween(begin, end);
    }
 
    public List<SafetyDrillDO> listDrillBetween(LocalDate begin, LocalDate end) {
        return drillMapper.selectListBetween(begin, end);
    }
 
    public List<SafetyAccidentDO> listAccidentBetween(LocalDate begin, LocalDate end) {
        return accidentMapper.selectListBetween(
                begin == null ? null : begin.atStartOfDay(),
                end == null ? null : end.atTime(23, 59, 59));
    }
 
    // ==================== 私有 ====================
 
    /** 参加人数未填时,按姓名逗号分隔数量推断 */
    private static int resolveCount(Integer count, String participants) {
        if (count != null && count > 0) {
            return count;
        }
        if (StrUtil.isBlank(participants)) {
            return 0;
        }
        return (int) java.util.Arrays.stream(participants.split("[,,、]"))
                .map(String::trim).filter(StrUtil::isNotBlank).count();
    }
 
    private SafetyTrainingDO validateTrainingExists(Long id) {
        SafetyTrainingDO training = id == null ? null : trainingMapper.selectById(id);
        if (training == null) {
            throw exception(SAFETY_TRAINING_NOT_EXISTS);
        }
        return training;
    }
 
    private SafetyDrillDO validateDrillExists(Long id) {
        SafetyDrillDO drill = id == null ? null : drillMapper.selectById(id);
        if (drill == null) {
            throw exception(SAFETY_DRILL_NOT_EXISTS);
        }
        return drill;
    }
 
    private SafetyAccidentDO validateAccidentExists(Long id) {
        SafetyAccidentDO accident = id == null ? null : accidentMapper.selectById(id);
        if (accident == null) {
            throw exception(SAFETY_ACCIDENT_NOT_EXISTS);
        }
        return accident;
    }
 
}