package com.sincere.student.service.impl;

import com.github.pagehelper.PageHelper;
import com.sincere.student.dto.MajorSearchDto;
import com.sincere.student.mapper.MajorMapper;
import com.sincere.student.model.Major;
import com.sincere.student.service.MajorService;
import com.sincere.student.utils.Page;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class MajorServiceImpl implements MajorService {

    @Autowired
    MajorMapper majorMapper ;

    @Override
    public Page<Major> getList(MajorSearchDto majorSearchDto) {
        Page<Major> page = new Page<>(majorSearchDto.getPage(),majorSearchDto.getPageSize());
        Major major = new Major() ;
        if(StringUtils.isNotBlank(majorSearchDto.getSearch())){
            major.setMajor("%"+majorSearchDto.getSearch()+"%");
        }
        if(majorSearchDto.getPid() != 0){
            major.setPid(majorSearchDto.getPid());
        }
        PageHelper.startPage(majorSearchDto.getPage(),majorSearchDto.getPageSize());
        List<Major> list = majorMapper.getList(major);
        page.setList(list);
        page.setCount(majorMapper.getListCount(major));
        return page ;
    }

    @Override
    public int create(Major major) {
        if(major.getPid() == 0){ //说明是一级专业
            major.setPid(-1);
        }
        return majorMapper.create(major);
    }

    @Override
    public int update(Major major) {
        return majorMapper.update(major);
    }

    @Override
    public int delete(int id) {
        majorMapper.delete(id);
        majorMapper.deleteByPid(id);
        return 1;
    }

    @Override
    public List<Major> selectMajor() {
        return majorMapper.selectMajor();
    }
}