<?php

namespace app\common\model\user;

use think\Model;


/**
 * 用户收藏
 */
class Collect extends Model
{
    // 表名
    protected $name = 'collect';


    public function course()
    {
        return $this->belongsTo('\app\common\model\course\Course', 'item_id', 'id', [], 'LEFT')->setEagerlyType(0);
    }


    /**
     * 获取课程列表
     * @param $userId 分组ID
     * @param $params 分页信息 page页码 limit获取数量
     * @return array
     */
    public function getMyCollect($userId = 0,$params = []){
        $rows = self::with(['course']);

        $where = [
            'user_id'=>$userId,
            'course.status'=>1
        ];

        if($params['type'] != 'all'){
            $where['course.type'] = $params['type'];
        }

        $list = $rows
            ->where($where)
            ->limit($params['limit'])->page($params['page'])
            ->order('createtime','desc')
            ->select();

        $data = [];

        if(!empty($list)){
            foreach ($list as $item){
                $item->getRelation('course')->visible(['name','cover','type','id']);
                $data[] = $item;
            }
        }

        return $data;
    }


    /**
     * 获取课程列表
     * @param $userId 分组ID
     * @param $params 分页信息 page页码 limit获取数量
     * @return array
     */
    public function getStudyLog($userId = 0,$params = []){
        $rows = self::with(['course']);

        $where = [
            'user_id'=>$userId
        ];


        $list = $rows
            ->where($where)
            ->limit($params['limit'])->page($params['page'])
            ->order('study.end_time','desc')
            ->group('study.course_id')
            ->field('sum(study.total_time) as total_time')
            ->select();

        $data = [];

        if(!empty($list)){
            foreach ($list as $item){
                $item->getRelation('course')->visible(['name','cover','type','id']);
                $data[] = $item;
            }
        }

        return $data;
    }


    /**
     * 收藏
     * @param $userId 用户ID
     * @param $itemId 收藏对象
     * @param $type 收藏对象类型
     * @return void
     */
    public function setCollect($userId,$itemId,$type='course'){

        //判断最近指定范围内是否有记录
        $params = [
            'user_id'=>$userId,
            'item_id'=>$itemId,
            'uniacid'=>UNIACID,
            'type'=>$type
        ];
        $log = self::where($params)->find();

        if(!$log){
            $params['createtime'] = time();
            self::insert($params);
        }else{
            self::where([
                'id'=>$log['id']
            ])->delete();
        }
        return true;
    }

}