<?php

namespace components;

use PhpAmqpLib\Message\AMQPMessage;
use PhpAmqpLib\Connection\AMQPStreamConnection;

class PhpClient {
    private $connection;
    private $channel;
    private $callback_queue;
    private $response;
    private $corr_id;
    private $result = '';

//   CONST HOST = "172.30.118.225";
        CONST HOST = "localhost";

    CONST PORT = 5673; //默认5672
    CONST USER = "guest"; //用户名
    CONST PASS = "guest";//密码

    public function __construct() {
        $this->connection = new AMQPStreamConnection(
            self::HOST, self::PORT, self::USER, self::PASS); //建立连接

        $this->channel = $this->connection->channel();
        list($this->callback_queue, ,) = $this->channel->queue_declare(
            "", false, false, true, false);

        $this->channel->basic_consume(
            $this->callback_queue, '', false, false, false, false,
            array($this, 'on_response'));
    }
    public function on_response($rep) {
        if($rep->get('correlation_id') == $this->corr_id) {
            $this->result .= $rep->body;
            $this->response = $rep->body;
        }
    }

    public function call($n) {
        $this->response = null;
        $this->corr_id = uniqid();

        $msg = new AMQPMessage(
            (string) $n,
            array('correlation_id' => $this->corr_id,
                'reply_to' => $this->callback_queue)
        );
        $this->channel->basic_publish($msg, '', 'queue'); //这里的queue是消息名称
        while($this->response != "end") {
            $this->channel->wait();
        }
        return $this->result;
    }


    public static function CallMq($n){

        $connection =   new AMQPStreamConnection(
            self::HOST, self::PORT, self::USER, self::PASS); //建立连接
        $channel = $connection->channel();

        $channel->queue_declare('task_queue', false, true, false, false);

        $data=empty($n)?"Hello World!":$n;

        $msg = new AMQPMessage($data,
            array('delivery_mode' => AMQPMessage::DELIVERY_MODE_PERSISTENT)
        );

        $channel->basic_publish($msg, '', 'task_queue');

        $channel->close();
        $connection->close();

        return true;
    }


    public static function CallUserMq($n){

        $connection =   new AMQPStreamConnection(
            self::HOST, self::PORT, self::USER, self::PASS); //建立连接
        $channel = $connection->channel();

        $channel->queue_declare('login', false, true, false, false);

        $data=empty($n)?"Hello World!":$n;

        $msg = new AMQPMessage($data,
            array('delivery_mode' => AMQPMessage::DELIVERY_MODE_PERSISTENT)
        );

        $channel->basic_publish($msg, '', 'login');

        $channel->close();
        $connection->close();

        return true;
    }
}