<?php
namespace App\Servers\Member;

use App\Models\UserModels\WxUser;
use App\Servers\Common\PassServer;

class UserServer
{

    /**
     * 单列对象
     * @var
     */
    private static $server = '';


    private function __construct(){

    }

    /**
     * 创建对象
     * @return UserServer
     */
    static function creatServer()
    {
        if(empty(self::$server)){
            self::$server = new UserServer();
        }
        return self::$server;
    }

    /**
     * 微信登陆
     * @param $wx_info
     * @param $invite_code
     * @return array|false
     */
    function setWxOpen($wx_info,$invite_code){
        //检查这个微信openid是否存在
        $user = WxUser::where('openid',$wx_info['openid'])->select(['id','openid','invite_code','status'])->first();
        if(!$user){//不存在就创建信息
            //查找推广者
            if ($invite_code){
                $p_id = WxUser::where('invite_code', $invite_code)->value('id');
                if(!$p_id){
                    $p_id = 1;
                }
            }else{
                $p_id = 1;//找不到推广上级就为0既是上级为平台
            }

            $invite_code = $this->createCode();
            $member_info['invite_code'] = $invite_code;
            $member_info['openid'] = $wx_info['openid'];
            $member_info['p_id'] = $p_id;


            $member_info = WxUser::create($member_info);
            if (empty($member_info)) {
                return false;
            }

            $token_str = PassServer::creatServer()->getMemberToken($member_info->{'id'});
            WxUser::where('id', $member_info->{'id'})->update(['token_str' => $token_str]);
            $info = ['m_id' => $member_info->{'id'},'status' => 0, 't_code' => $invite_code, 'token_str' => $token_str];

//            $info = ['m_id' => $member_info->{'id'},'status' => 0, 't_code' => $invite_code];
        }else{

            $token_str = PassServer::creatServer()->getMemberToken($user->{'id'});
            WxUser::where('id', $user->{'id'})->update(['token_str' => $token_str]);
            $info = ['m_id' => $user->{'id'},'status' => $user->{'status'}, 't_code' => $user->{'invite_code'}, 'token_str' => $token_str];
//            $info = ['m_id' => $user->{'id'},'status' => $user->{'status'}, 't_code' => $user->{'invite_code'}];
        }

        return $info;
    }

    /**
     * 随机8位字符串
     * @return string
     */
    function randString()
    {
        $code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $rand = $code[rand(0,25)]
            .strtoupper(dechex(date('m')))
            .date('d').substr(time(),-5)
            .substr(microtime(),2,5)
            .sprintf('%02d',rand(0,99));
        for(
            $a = md5( $rand, true ),
            $s = '0123456789ABCDEFGHIJKLMNOPQRSTUV',
            $d = '',
            $f = 0;
            $f < 8;
            $g = ord( $a[ $f ] ),
            $d .= $s[ ( $g ^ ord( $a[ $f + 8 ] ) ) - $g & 0x1F ],
            $f++
        );
        return  $d;
    }

    /**
     * 生成推荐码
     * @return int
     */
    function createCode(){
        $is_ok = true;
        while ($is_ok) {
            $invite_code = rand(10000000, 99999999);
            $find = WxUser::where('invite_code',$invite_code)->select(['id'])->first();
            if (!$find) {
                $is_ok = false;
            }
        }

        return $invite_code;
    }
}