package cn.iocoder.yudao.module.digitalcourse.service.titlestrailer;

import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.digitalcourse.controller.admin.titlestrailer.vo.TitlesTrailerPageReqVO;
import cn.iocoder.yudao.module.digitalcourse.controller.admin.titlestrailer.vo.TitlesTrailerSaveReqVO;
import cn.iocoder.yudao.module.digitalcourse.dal.dataobject.titlestrailer.TitlesTrailerDO;
import cn.iocoder.yudao.module.digitalcourse.dal.mysql.titlestrailer.TitlesTrailerMapper;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;

import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.module.digitalcourse.enums.ErrorCodeConstants.TEMPLATE_NOT_EXISTS;

/**
 * 模板 Service 实现类
 *
 * @author 管理员
 */
@Service
@Validated
public class TitlesTrailerServiceImpl implements TitlesTrailerService {

    @Resource
    private TitlesTrailerMapper titlesTrailerMapper;

    @Override
    public Long createTitlesTrailer(TitlesTrailerSaveReqVO createReqVO) {
        // 插入
        TitlesTrailerDO template = BeanUtils.toBean(createReqVO, TitlesTrailerDO.class);
        titlesTrailerMapper.insert(template);
        // 返回
        return template.getId();
    }

    @Override
    public void updateTitlesTrailer(TitlesTrailerSaveReqVO updateReqVO) {
        // 校验存在
        validateTemplateExists(updateReqVO.getId());
        // 更新
        TitlesTrailerDO updateObj = BeanUtils.toBean(updateReqVO, TitlesTrailerDO.class);
        titlesTrailerMapper.updateById(updateObj);
    }

    @Override
    public void deleteTitlesTrailer(Long id) {
        // 校验存在
        validateTemplateExists(id);
        // 删除
        titlesTrailerMapper.deleteById(id);
    }

    private void validateTemplateExists(Long id) {
        if (titlesTrailerMapper.selectById(id) == null) {
            throw exception(TEMPLATE_NOT_EXISTS);
        }
    }

    @Override
    public TitlesTrailerDO getTitlesTrailer(Long id) {
        return titlesTrailerMapper.selectById(id);
    }

    @Override
    public PageResult<TitlesTrailerDO> getTitlesTrailerPage(TitlesTrailerPageReqVO pageReqVO) {
        return titlesTrailerMapper.selectPage(pageReqVO);
    }

}