package com.boying.controller;

import com.boying.common.BaseController;
import com.boying.entity.StudyDir;
import com.boying.service.StudyDirService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("studyDir")
public class StudyDirController extends BaseController {

    @Autowired
    private StudyDirService studyDirService;

    @PostMapping("findPage")
    public Object findPage() {
        return success("",studyDirService.findAll("parentId", null));
    }

    @PostMapping("findByParentId")
    public Object findByParentId(Long id) {
        return success("",studyDirService.findAll("parentId", id));
    }

    @PostMapping("save")
    public Object save(StudyDir studyDir) {
        if(studyDir.getParentId()!=null&&studyDir.getId()==null){
            StudyDir byId = (StudyDir) studyDirService.findById(studyDir.getParentId());
            byId.setHasChildren(true);
            studyDirService.save(byId);
        }
        studyDirService.save(studyDir);
        return success("保存成功");
    }

    @PostMapping("delete")
    public Object delete(Long id) {
        StudyDir studyDir = (StudyDir) studyDirService.findById(id);

        studyDirService.delete(id);

        if(studyDir.getParentId()!=null){
            List parentId = studyDirService.findAll("parentId", id);
            if(parentId.size()==0){
                StudyDir studyDir2 = (StudyDir) studyDirService.findById(studyDir.getParentId());
                studyDir2.setHasChildren(false);
                studyDirService.save(studyDir2);
            }
        }

        return success("删除成功");
    }

}