<?php

namespace app\main\service;

use app\main\constants\MqConstants;

class TransferService extends BaseService {

    const EXCHANGE_NAME ='cps.ex.topic';

    private $map = [];

    private static $route_key = null;


    /**
     * @var TransferService
     */
    protected static $self = null;
    /**
     * @return BaseService|TransferService
     */
    public static function instance()
    {
        if (self::$self == NULL) {
            self::$self = new self();
        }
        return self::$self;
    }

    //粉丝备份
    public function setBackups($id,$next = null){
        $this->map = [
            'id' => $id,
            'next' => $next
        ];
        self::$route_key = MqConstants::CHANNEL_FANS_BACKUPS;
        return $this;
    }

    //粉丝转移
    public function setTransfer($id,$next = null){
        $this->map = [
            'id' => $id,
            'next' => $next
        ];
        self::$route_key = MqConstants::CHANNEL_FANS_TRANSFER;
        return $this;
    }

    /**
     * 推送MQ消息
     */
    public function push(){
        $mq = MqService::instance()->getDotMqInstance();
        $mq->transferExchange($this->map, self::EXCHANGE_NAME, self::$route_key, 'topic');
    }
}