<?php

namespace app\common\library;

use app\common\model\school\classes\VirtualHead;
use app\common\model\school\classes\VirtualUser;

/**
 *  虚拟数据工具类
 */
class Virtual
{

    /** 获得虚拟昵称
     * @return mixed|string
     */
    public function getNickName(){
        $str = config("site.virtual_nickname");
        $arr = explode("##",$str);
        $r = rand(0,sizeof($arr));
        return $arr[$r];
    }

    public function getVirtualUser($num=10,$classes_lib_id = 0,$time=null,$set=false){
        $users = [];
        if(!$time)$time = time();
        //mysql随机查询$num个数据
        $virtualHead  = VirtualHead::orderRaw("rand()")->limit($num)->select();
        //随机获得$num个虚拟用户昵称和头像
        foreach($virtualHead as $v) {
            $nickname = $this->getNickName();
            $head = $v->head_image;
            $r = rand(($time - 86400*7),$time);

            $users[] = [
                "nickname"=>$nickname,
                "head_image"=>$head,
                "time"=>$r,
                "jointype" => "1",
                "havetype" => "".($r % 2)
            ];
        }

        if(!$set){
            return $users;
        }else{

            $user_data=[];
            foreach($users as $user) {
                $r = rand(($time - 86400*7),$time);
                $user_data[] = [
                    "nickname"=>$user["nickname"],
                    "head_image"=>$user["head_image"],
                    "classes_lib_id"=>$classes_lib_id,
                    "time"=>$r,
                    "jointype" => "1",
                    "havetype" => "".($r % 2)
                ];
            }
            (new VirtualUser)->saveAll($user_data);
            return $user_data;
        }
    }


}