package cn.iocoder.yudao.module.hrm.service.certificate;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.exception.ServiceException;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.hrm.controller.admin.certificate.vo.HrmCertificateImportExcelVO;
import cn.iocoder.yudao.module.hrm.controller.admin.certificate.vo.HrmCertificateImportReqVO;
import cn.iocoder.yudao.module.hrm.controller.admin.certificate.vo.HrmCertificateImportRespVO;
import cn.iocoder.yudao.module.hrm.controller.admin.certificate.vo.HrmCertificatePageReqVO;
import cn.iocoder.yudao.module.hrm.controller.admin.certificate.vo.HrmCertificateSaveReqVO;
import cn.iocoder.yudao.module.hrm.dal.dataobject.certificate.HrmCertificateDO;
import cn.iocoder.yudao.module.hrm.dal.dataobject.employee.HrmEmployeeDO;
import cn.iocoder.yudao.module.hrm.dal.mysql.certificate.HrmCertificateMapper;
import cn.iocoder.yudao.module.hrm.dal.mysql.employee.HrmEmployeeMapper;
import cn.iocoder.yudao.module.hrm.service.employee.HrmEmployeeService;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;

import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;

import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.filterList;
import static cn.iocoder.yudao.module.hrm.enums.ErrorCodeConstants.*;

/**
 * HRM 证书资质 Service 实现类
 *
 * @author xiaoyi
 */
@Service
@Validated
public class HrmCertificateServiceImpl implements HrmCertificateService {

    @Resource
    private HrmCertificateMapper certificateMapper;
    @Resource
    private HrmEmployeeService employeeService;
    @Resource
    private HrmEmployeeMapper employeeMapper;

    @Override
    public Long createCertificate(HrmCertificateSaveReqVO createReqVO) {
        validateEmployee(createReqVO.getEmployeeId());
        HrmCertificateDO certificate = BeanUtils.toBean(createReqVO, HrmCertificateDO.class);
        certificateMapper.insert(certificate);
        return certificate.getId();
    }

    @Override
    public void updateCertificate(HrmCertificateSaveReqVO updateReqVO) {
        validateCertificateExists(updateReqVO.getId());
        validateEmployee(updateReqVO.getEmployeeId());
        certificateMapper.updateById(BeanUtils.toBean(updateReqVO, HrmCertificateDO.class));
    }

    @Override
    public void deleteCertificate(Collection<Long> ids) {
        if (CollUtil.isEmpty(ids)) {
            return;
        }
        for (Long id : ids) {
            validateCertificateExists(id);
            certificateMapper.deleteById(id);
        }
    }

    @Override
    public HrmCertificateDO getCertificate(Long id) {
        return certificateMapper.selectById(id);
    }

    @Override
    public PageResult<HrmCertificateDO> getCertificatePage(HrmCertificatePageReqVO pageReqVO) {
        return certificateMapper.selectPage(pageReqVO);
    }

    private void validateEmployee(Long employeeId) {
        if (employeeService.getEmployee(employeeId) == null) {
            throw exception(HRM_EMPLOYEE_NOT_EXISTS);
        }
    }

    private void validateCertificateExists(Long id) {
        if (certificateMapper.selectById(id) == null) {
            throw exception(HRM_CERTIFICATE_NOT_EXISTS);
        }
    }

    @Override
    public HrmCertificateImportRespVO importCertificateList(
            List<HrmCertificateImportExcelVO> importList, HrmCertificateImportReqVO importReqVO) {
        // 1. 校验非空
        importList = filterList(importList, item -> StrUtil.isNotBlank(item.getCertName()));
        if (CollUtil.isEmpty(importList)) {
            throw exception(CERTIFICATE_IMPORT_LIST_IS_EMPTY);
        }
        // 2. 逐条处理
        HrmCertificateImportRespVO respVO = HrmCertificateImportRespVO.builder()
                .createNames(new ArrayList<>())
                .updateNames(new ArrayList<>())
                .failureNames(new LinkedHashMap<>())
                .build();
        importList.forEach(importCertificate -> {
            try {
                // 2.1 解析员工
                if (StrUtil.isBlank(importCertificate.getEmployeeName())) {
                    respVO.getFailureNames().put(importCertificate.getCertName(), "员工姓名不能为空");
                    return;
                }
                HrmEmployeeDO employee = employeeMapper.selectByName(importCertificate.getEmployeeName());
                if (employee == null) {
                    throw exception(CERTIFICATE_EMPLOYEE_NOT_EXISTS, importCertificate.getEmployeeName());
                }
                // 2.2 判断是否存在（按员工+证书编号或员工+证书名称唯一）
                HrmCertificateDO existCertificate = StrUtil.isNotBlank(importCertificate.getCertNo())
                        ? certificateMapper.selectByEmployeeIdAndCertNo(employee.getId(), importCertificate.getCertNo())
                        : certificateMapper.selectByEmployeeIdAndCertName(employee.getId(), importCertificate.getCertName());
                if (existCertificate == null) {
                    // 2.2.1 新增
                    HrmCertificateDO certificate = BeanUtils.toBean(importCertificate, HrmCertificateDO.class)
                            .setEmployeeId(employee.getId());
                    certificateMapper.insert(certificate);
                    respVO.getCreateNames().add(importCertificate.getCertName());
                    return;
                }
                // 2.2.2 已存在，判断是否允许更新
                if (!importReqVO.getUpdateSupport()) {
                    respVO.getFailureNames().put(importCertificate.getCertName(),
                            StrUtil.format(CERTIFICATE_EXISTS.getMsg(), importCertificate.getCertName()));
                    return;
                }
                HrmCertificateDO updateCertificate = BeanUtils.toBean(importCertificate, HrmCertificateDO.class)
                        .setId(existCertificate.getId()).setEmployeeId(employee.getId());
                certificateMapper.updateById(updateCertificate);
                respVO.getUpdateNames().add(importCertificate.getCertName());
            } catch (ServiceException ex) {
                respVO.getFailureNames().put(importCertificate.getCertName(), ex.getMessage());
            }
        });
        return respVO;
    }

}