sourcecode/server/gateway-api/src/main/java/com/qxgmat/service/inline/CourseDataService.java

package com.qxgmat.service.inline;

import com.github.pagehelper.Page;
import com.nuliji.tools.AbstractService;
import com.nuliji.tools.Transform;
import com.nuliji.tools.exception.ParameterException;
import com.nuliji.tools.exception.SystemException;
import com.nuliji.tools.mybatis.Example;
import com.qxgmat.data.constants.enums.status.DirectionStatus;
import com.qxgmat.data.constants.enums.user.DataType;
import com.qxgmat.data.dao.CourseDataMapper;
import com.qxgmat.data.dao.CourseMapper;
import com.qxgmat.data.dao.entity.Course;
import com.qxgmat.data.dao.entity.CourseData;
import com.qxgmat.data.relation.CourseDataRelationMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.Collection;
import java.util.List;

@Service
public class CourseDataService extends AbstractService {
    private static final Logger logger = LoggerFactory.getLogger(CourseDataService.class);

    @Resource
    private CourseDataMapper courseDataMapper;

    @Resource
    private CourseDataRelationMapper courseDataRelationMapper;

    public Page<CourseData> listAdmin(int page, int size,String keyword, Integer structId, DataType dataType, String order, DirectionStatus direction){
        Example example = new Example(CourseData.class);
        if(keyword != null){
            example.and(
                    example.createCriteria()
                            .andLike("title", "%"+keyword+"%")
            );
        }
        if(structId != null){
            example.and(
                    example.createCriteria()
                    .orEqualTo("structId", structId)
                    .orEqualTo("parentStructId", structId)
            );
        }
        if(dataType != null){
            example.and(
                    example.createCriteria()
                    .andEqualTo("dataType", dataType.key)
            );
        }
        if(order == null || order.isEmpty()) order = "id";
        switch(direction){
            case ASC:
                example.orderBy(order).asc();
                break;
            case DESC:
            default:
                example.orderBy(order).desc();
        }
        return select(courseDataMapper, example, page, size);
    }

    public Page<CourseData> list(int page, int size, Integer structId, DataType dataType, Boolean isNovice, Boolean isOriginal, String order, DirectionStatus direction){
        Example example = new Example(CourseData.class);
        if(structId != null){
            example.and(
                    example.createCriteria()
                            .orEqualTo("structId", structId)
                            .orEqualTo("parentStructId", structId)
            );
        }
        if (isNovice != null){
            example.and(
                    example.createCriteria()
                            .andEqualTo("isNovice", isNovice ? 1 : 0)
            );
        }
        if (isOriginal != null){
            example.and(
                    example.createCriteria()
                            .andEqualTo("isOriginal", isOriginal ? 1 : 0)
            );
        }
        if(dataType != null){
            example.and(
                    example.createCriteria()
                            .andEqualTo("dataType", dataType.key)
            );
        }
        if(order == null || order.isEmpty()) order = "id";
        switch(direction){
            case ASC:
                example.orderBy(order).asc();
                break;
            case DESC:
            default:
                example.orderBy(order).desc();
        }
        return select(courseDataMapper, example, page, size);
    }
    /**
     * 获取用户购买记录
     * @param page
     * @param size
     * @param userId
     * @return
     */
    public Page<CourseData> listByUser(int page, int size, Integer userId, Integer structId, DataType dataType, String order, DirectionStatus direction){
        Page<CourseData> p = page(()->{
            courseDataRelationMapper.listByUser(userId, structId, dataType != null ? dataType.key : null, order != null ? order : "id", direction != null ? direction.key : "desc");
        }, page, size);

        Collection ids = Transform.getIds(p, CourseData.class, "id");

        // 获取详细数据
        List<CourseData> list = select(ids);
        Transform.replace(p, list, CourseData.class, "id");
        return p;
    }

    /**
     * 累加购买记录，访问记录
     * @param sale
     */
    public void accumulation(Integer dataId, int sale, int view){
        courseDataRelationMapper.accumulation(dataId, sale, view);
    }

    /**
     * 获取长难句资料：添加时根据struct=sentence判断设置
     * @return
     */
    public CourseData getSentence(){
        Example example = new Example(CourseData.class);
        example.and(
                example.createCriteria().andEqualTo("isSentence", 1)
        );
        return one(courseDataMapper, example);
    }

    public CourseData add(CourseData courseData){
        int result = insert(courseDataMapper, courseData);
        courseData = one(courseDataMapper, courseData.getId());
        if(courseData == null){
            throw new SystemException("资料添加失败");
        }
        return courseData;
    }

    public CourseData edit(CourseData courseData){
        CourseData in = one(courseDataMapper, courseData.getId());
        if(in == null){
            throw new ParameterException("资料不存在");
        }
        int result = update(courseDataMapper, courseData);
        return courseData;
    }

    public boolean delete(Number id){
        CourseData in = one(courseDataMapper, id);
        if(in == null){
            throw new ParameterException("资料不存在");
        }
        int result = delete(courseDataMapper, id);
        return result > 0;
    }

    public CourseData get(Number id){
        CourseData in = one(courseDataMapper, id);

        if(in == null){
            throw new ParameterException("资料不存在");
        }
        return in;
    }

    public Page<CourseData> select(int page, int pageSize){
        return select(courseDataMapper, page, pageSize);
    }

    public Page<CourseData> select(Integer[] ids){
        return page(()->select(courseDataMapper, ids), 1, ids.length);
    }

    public List<CourseData> select(Collection ids){
        return select(courseDataMapper, ids);
    }

}