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

package com.qxgmat.service.inline;

import com.github.pagehelper.Page;
import com.nuliji.tools.AbstractService;
import com.nuliji.tools.exception.ParameterException;
import com.nuliji.tools.exception.SystemException;
import com.nuliji.tools.mybatis.Example;
import com.qxgmat.data.constants.enums.module.CourseModule;
import com.qxgmat.data.constants.enums.status.DirectionStatus;
import com.qxgmat.data.dao.CourseNoMapper;
import com.qxgmat.data.dao.CoursePackageMapper;
import com.qxgmat.data.dao.entity.Course;
import com.qxgmat.data.dao.entity.CourseNo;
import com.qxgmat.data.dao.entity.CoursePackage;
import com.qxgmat.data.relation.CoursePackageRelationMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

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

    @Resource
    private CoursePackageMapper coursePackageMapper;

    @Resource
    private CoursePackageRelationMapper coursePackageRelationMapper;

    public Page<CoursePackage> listAdmin(int page, int size,String keyword, String order, DirectionStatus direction){
        Example example = new Example(CoursePackage.class);
        if(keyword != null){
            example.and(
                    example.createCriteria()
                            .andLike("title", "%"+keyword+"%")
            );
        }
        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(coursePackageMapper, example, page, size);
    }

    public Page<CoursePackage> list(int page, int size, Integer structId, Boolean isSpecial, String order, DirectionStatus direction){
        Example example = new Example(CoursePackage.class);
        if(structId != null){
            example.and(
                    example.createCriteria()
                            .orEqualTo("structId", structId)
            );
        }
        if (isSpecial != null){
            example.and(
                    example.createCriteria()
                            .orEqualTo("isSpecial", isSpecial ? 1: 0)
            );
        }
        if(order == null || order.isEmpty()) order = "id";
        if (direction != null){
            switch(direction){
                case ASC:
                    example.orderBy(order).asc();
                    break;
                case DESC:
                default:
                    example.orderBy(order).desc();
            }
        } else {
            example.orderBy(order).desc();
        }
        return select(coursePackageMapper, example, page, size);
    }

    /**
     * 查找符合课程列表的套餐
     * @param ids
     * @return
     */
    public CoursePackage combineCourse(Collection ids){
        if (ids==null || ids.size() == 0) return null;
        List<CoursePackage> all = select(coursePackageMapper);
        for(CoursePackage p : all){
            if(ids.containsAll(Arrays.stream(p.getCourseIds()).collect(Collectors.toList()))){
                return p;
            }
        }
        return null;
    }

    /**
     * 累加购买记录
     * @param sale
     */
    public void accumulation(Integer packageId, int sale){
        coursePackageRelationMapper.accumulation(packageId, sale);
    }

    public CoursePackage add(CoursePackage coursePackage){
        int result = insert(coursePackageMapper, coursePackage);
        coursePackage = one(coursePackageMapper, coursePackage.getId());
        if(coursePackage == null){
            throw new SystemException("套餐添加失败");
        }
        return coursePackage;
    }

    public CoursePackage edit(CoursePackage coursePackage){
        CoursePackage in = one(coursePackageMapper, coursePackage.getId());
        if(in == null){
            throw new ParameterException("套餐不存在");
        }
        int result = update(coursePackageMapper, coursePackage);
        return coursePackage;
    }

    public boolean delete(Number id){
        CoursePackage in = one(coursePackageMapper, id);
        if(in == null){
            throw new ParameterException("套餐不存在");
        }
        int result = delete(coursePackageMapper, id);
        return result > 0;
    }

    public CoursePackage get(Number id){
        CoursePackage in = one(coursePackageMapper, id);

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

    public Page<CoursePackage> select(int page, int pageSize){
        return select(coursePackageMapper, page, pageSize);
    }

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

    public List<CoursePackage> select(Collection ids){
        return select(coursePackageMapper, ids);
    }

}