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

import cn.hutool.core.collection.CollUtil;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.srm.controller.admin.certificate.vo.SrmSupplierCertificatePageReqVO;
import cn.iocoder.yudao.module.srm.controller.admin.certificate.vo.SrmSupplierCertificateSaveReqVO;
import cn.iocoder.yudao.module.srm.dal.dataobject.SrmSupplierCertificateDO;
import cn.iocoder.yudao.module.srm.dal.mysql.SrmSupplierCertificateMapper;
import cn.iocoder.yudao.module.srm.enums.ErrorCodeConstants;
import cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil;
import cn.iocoder.yudao.module.system.api.storage.StorageAttachmentApi;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;

import java.time.LocalDate;
import java.util.List;

@Service
@Validated
public class SrmSupplierCertificateServiceImpl implements SrmSupplierCertificateService {

    /**
     * 资质证书附件的业务记录类型，对应 {@link cn.iocoder.yudao.module.system.enums.storage.StorageRecordTypeEnum#SRM_SUPPLIER_CERTIFICATE}
     */
    public static final String CERTIFICATE_RECORD_TYPE = "srm_supplier_certificate";

    @Resource
    private SrmSupplierCertificateMapper certificateMapper;

    @Resource
    private StorageAttachmentApi storageAttachmentApi;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Long createCertificate(SrmSupplierCertificateSaveReqVO createReqVO) {
        SrmSupplierCertificateDO certificate = BeanUtils.toBean(createReqVO, SrmSupplierCertificateDO.class);
        updateStatus(certificate);
        certificateMapper.insert(certificate);
        // 绑定证书附件
        if (CollUtil.isNotEmpty(createReqVO.getBlobIds())) {
            storageAttachmentApi.bindAttachments("file", CERTIFICATE_RECORD_TYPE, certificate.getId(), createReqVO.getBlobIds());
        }
        return certificate.getId();
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateCertificate(SrmSupplierCertificateSaveReqVO updateReqVO) {
        validateCertificateExists(updateReqVO.getId());
        SrmSupplierCertificateDO updateObj = BeanUtils.toBean(updateReqVO, SrmSupplierCertificateDO.class);
        updateStatus(updateObj);
        certificateMapper.updateById(updateObj);
        // 增量更新证书附件
        storageAttachmentApi.updateAttachments("file", CERTIFICATE_RECORD_TYPE, updateReqVO.getId(), updateReqVO.getBlobIds());
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deleteCertificate(Long id) {
        validateCertificateExists(id);
        // 删除证书附件
        storageAttachmentApi.deleteAttachmentsByRecord(CERTIFICATE_RECORD_TYPE, id);
        certificateMapper.deleteById(id);
    }

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

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

    @Override
    public List<SrmSupplierCertificateDO> getCertificateListBySupplierId(Long supplierId) {
        return certificateMapper.selectListBySupplierId(supplierId);
    }

    @Override
    public List<SrmSupplierCertificateDO> getExpiringCertificates() {
        LocalDate now = LocalDate.now();
        return certificateMapper.selectExpiringList(now, now.plusDays(30));
    }

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

    private void updateStatus(SrmSupplierCertificateDO certificate) {
        if (certificate.getValidEndDate() != null) {
            LocalDate now = LocalDate.now();
            if (certificate.getValidEndDate().isBefore(now)) {
                certificate.setStatus(1); // 已过期
            } else if (certificate.getValidEndDate().isBefore(now.plusDays(30))) {
                certificate.setStatus(2); // 即将过期
            } else {
                certificate.setStatus(0); // 有效
            }
        }
    }

}