efunbox_audio/src/main/java/cn/efunbox/audio/impl/res/ResAlbumServiceImpl.java

package cn.efunbox.audio.impl.res;

import cn.efunbox.audio.entity.BaseOrderEnum;
import cn.efunbox.audio.entity.res.ResAlbum;
import cn.efunbox.audio.helper.SortHelper;
import cn.efunbox.audio.page.ResOnePage;
import cn.efunbox.audio.repository.res.ResAlbumRepository;
import cn.efunbox.audio.service.res.ResAlbumService;
import cn.efunbox.audio.utils.ResApiCode;
import cn.efunbox.audio.utils.ResApiResult;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.LinkedHashMap;
import java.util.List;

@Service
public class ResAlbumServiceImpl implements ResAlbumService {

    @Autowired
    ResAlbumRepository resAlbumRepository;

    /**
     * 获取分类下的专辑列表-分页
     * @param typeId 分类 Id
     * @param pageNum 页码
     * @param pageSize 页面大小
     * @return
     */
    @Override
    public ResApiResult<ResOnePage<ResAlbum>> getResAlbumList(String typeId, Integer pageNum, Integer pageSize)  {

        //查询条件
        ResAlbum resAlbum = new ResAlbum();
        if(StringUtils.isNotBlank(typeId)){
            resAlbum.setTypeId(typeId);
        }
        resAlbum.setTypeId(typeId);

        Long count = resAlbumRepository.count(resAlbum);
        if(count == 0){
            return ResApiResult.error(ResApiCode.NOT_FOUND);
        }


        ResOnePage onePage = new ResOnePage(count);
        if(pageNum != null){
            onePage.setPageNum(pageNum);
        }
        if(pageSize != null){
            onePage.setPageSize(pageSize);
        }

        //数据查询
        List<ResAlbum> resAlbumList = resAlbumRepository.find(
                resAlbum,
                onePage.getStart(),
                onePage.getPageSize(),
                SortHelper.sortMap2Sort(
                        new LinkedHashMap<String, BaseOrderEnum>() {{
                            put("sort", BaseOrderEnum.ASC);
                        }}
                )
        );
        if(resAlbumList == null || resAlbumList.size() == 0){
            return ResApiResult.error(ResApiCode.NOT_FOUND);
        }

        onePage.setContentList(resAlbumList);

        //响应
        return ResApiResult.ok(onePage);
    }

    /**
     * 获取专辑详情信息
     * @param contentId 专辑 id
     * @return
     * @throws Exception
     */
    @Override
    public ResApiResult<ResAlbum> getResAlbumById(String contentId) throws Exception {
        if(StringUtils.isBlank(contentId)){
            return ResApiResult.error(ResApiCode.PARAMETER_NULL,ResApiCode.PARAMETER_NULL.getMessage()+"contentId");//错误提示语格式=》请求参数为空：contentId
        }

        //查询
        ResAlbum resAlbum = resAlbumRepository.find(contentId);
        if(resAlbum == null){
            return ResApiResult.error(ResApiCode.NOT_FOUND);
        }

        return ResApiResult.ok(resAlbum);
    }
}