package com.peanut.modules.master.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.github.yulichang.wrapper.MPJLambdaWrapper;
import com.peanut.common.utils.R;
import com.peanut.modules.common.entity.CourseEntity;
import com.peanut.modules.common.entity.CourseTaihumed;
import com.peanut.modules.common.entity.CourseToTaihumed;
import com.peanut.modules.common.service.CourseTaihumedService;
import com.peanut.modules.common.service.CourseToTaihumedService;
import com.peanut.modules.common.to.ParamTo;
import com.peanut.modules.master.service.CourseService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

//课程医学标签管理
@Slf4j
@RestController("masterCourseTaihumed")
@RequestMapping("master/courseTaihumed")
public class CourseTaihumedController {
    @Autowired
    private CourseTaihumedService courseTaihumedService;
    @Autowired
    private CourseToTaihumedService courseToTaihumedService;
    @Autowired
    private CourseService courseService;

    //课程标签列表
    @RequestMapping("/getCourseTaihumedList")
    public R getCourseTaihumedList(){
        List<CourseTaihumed> courseTaihumedList = courseTaihumeds(0);
        return R.ok().put("courseTaihumedList", courseTaihumedList);
    }

    @RequestMapping("/addCourseTaihumed")
    public R addCourseTaihumed(@RequestBody CourseTaihumed courseTaihumed){
        courseTaihumedService.save(courseTaihumed);
        return R.ok().put("courseTaihumed", courseTaihumed);
    }

    @RequestMapping("/delCourseTaihumed")
    public R delCourseTaihumed(@RequestBody Map<String,Object> params){
        //查看下一级是否存在
        int count = courseTaihumedService.count(new LambdaQueryWrapper<CourseTaihumed>()
                .eq(CourseTaihumed::getPid, params.get("id")));
        if(count>0){
            return R.error(501,"删除失败，请先删除子项目后再尝试");
        }
        //查看绑定关系是否存在
        List<CourseToTaihumed> toTaihumeds = courseToTaihumedService.list(new LambdaQueryWrapper<CourseToTaihumed>()
                .eq(CourseToTaihumed::getTaihumedId, params.get("id")));
        for (CourseToTaihumed toTaihumed:toTaihumeds){
            CourseEntity c = courseService.getById(toTaihumed.getCourseId());
            if (c!=null){
                return R.error(502,"删除失败，请先解绑课程与医学标签的绑定关系");
            }else {
                courseToTaihumedService.removeById(toTaihumed.getId());
            }
        }
        courseTaihumedService.removeById(params.get("id").toString());
        return R.ok();
    }

    @RequestMapping("/editCourseTaihumed")
    public R editCourseTaihumed(@RequestBody CourseTaihumed courseTaihumed){
        CourseTaihumed old = courseTaihumedService.getById(courseTaihumed.getId());
        if(old.getIsLast()==0&& courseTaihumed.getIsLast()==1){
            CourseTaihumed one = courseTaihumedService.getOne(new LambdaQueryWrapper<CourseTaihumed>()
                    .eq(CourseTaihumed::getPid, courseTaihumed.getId()));
            if(one!=null){
                return R.error(501,"更新失败，请先清空此项的下级标签，才能将此标签变成终极标签");
            }
        }
        if(old.getIsLast()==1&& courseTaihumed.getIsLast()==0){
            Integer integer = courseToTaihumedService.count(new LambdaQueryWrapper<CourseToTaihumed>()
                    .eq(CourseToTaihumed::getTaihumedId, courseTaihumed.getId()));
            if(integer>0){
                return R.error(502,"更新失败，请先把此项与课程的关联关系清空后才可把此标签变成普通标签");
            }
        }
        courseTaihumedService.updateById(courseTaihumed);
        return R.ok().put("courseTaihumed", courseTaihumed);
    }

    @RequestMapping("/getCourseListForTaihumed")
    public R getCourseListForMedical(@RequestBody Map<String,Object> params){
        MPJLambdaWrapper<CourseToTaihumed> wrapper = new MPJLambdaWrapper<>();
        wrapper.selectAll(CourseEntity.class);
        wrapper.selectAs(CourseToTaihumed::getId,"bindId");
        wrapper.selectAs(CourseToTaihumed::getSort,"toSociologySort");
        wrapper.selectAs(CourseToTaihumed::getLevel,"level");
        wrapper.selectAs(CourseToTaihumed::getSelective,"selective");
        wrapper.leftJoin(CourseEntity.class,CourseEntity::getId, CourseToTaihumed::getCourseId);
        wrapper.eq(CourseToTaihumed::getTaihumedId,params.get("taihumedId"));
        wrapper.orderByAsc(CourseToTaihumed::getSort);
        List<Object> courseEntities = courseToTaihumedService.listObjs(wrapper);
        return R.ok().put("courseList",courseEntities);
    }

    @RequestMapping("/getCourseListCanTaihumed")
    public R getCourseListCanTaihumed(@RequestBody ParamTo param){
        List<Integer> collect = courseToTaihumedService.list(new LambdaQueryWrapper<CourseToTaihumed>()
                .eq(CourseToTaihumed::getTaihumedId, param.getId()))
                .stream().map(CourseToTaihumed::getCourseId).collect(Collectors.toList());
        LambdaQueryWrapper<CourseEntity> wrapper = new LambdaQueryWrapper<>();
        if (collect.size() != 0){
            wrapper.notIn(CourseEntity::getId,collect);
        }
        wrapper.like(StringUtils.isNotBlank(param.getKeywords()),CourseEntity::getTitle,param.getKeywords());
        Page<CourseEntity> page = courseService.page(new Page<>(param.getPage(), param.getLimit()), wrapper);
        return R.ok().put("page",page);
    }

    @RequestMapping("/bindCourseAndTaihumed")
    public R bindCourseAndTaihumed(@RequestBody CourseToTaihumed courseToTaihumed){
        //去重
        CourseToTaihumed one = courseToTaihumedService.getOne(new LambdaQueryWrapper<CourseToTaihumed>()
                .eq(CourseToTaihumed::getCourseId, courseToTaihumed.getCourseId())
                .eq(CourseToTaihumed::getTaihumedId, courseToTaihumed.getTaihumedId()));
        if(one != null){
            return R.error(501,"绑定失败，绑定关系已将存在");
        }
        courseToTaihumedService.save(courseToTaihumed);
        return R.ok();
    }

    @RequestMapping("/unbindCourseAndTaihumed")
    public R unbindCourseAndTaihumed(@RequestBody CourseToTaihumed courseToTaihumed){
        boolean b = courseToTaihumedService.removeById(courseToTaihumed.getId());
        if(b){
            return R.ok();
        }else {
            return R.error("error");
        }
    }

    @RequestMapping("/updateCourseToTaihumedSort")
    public R updateCourseToTaihumedSort(@RequestBody CourseToTaihumed courseToTaihumed){
        courseToTaihumedService.updateById(courseToTaihumed);
        return R.ok();
    }





    private List<CourseTaihumed> courseTaihumeds(int id){
        List<CourseTaihumed> list = courseTaihumedService.list(new LambdaQueryWrapper<CourseTaihumed>().eq(CourseTaihumed::getPid, id));
        for (CourseTaihumed c : list){
            if(c.getIsLast()!=1){
                List<CourseTaihumed> so = this.courseTaihumeds(c.getId());
                c.setChildren(so);
            }
        }
        return list;
    }


}