<?php

namespace common\logic\MQMessage;

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

/**
 * 处理消息体逻辑
 * Class Message
 * @package common\logic\MQMessage
 */
class Message extends Config
{
    private $connection;

    private $channel;

    private $callback_queue;

    private $response = null;

    private $corr_id;

    private $result = '';

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

		$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')
		);
    }

	/**
	 * [发送信息]
	 * @author: libingke
	 * @param string $body 消息主体
	 * @param string $routing_key
	 * @return array 返回数据
	 */
	public function send($body, $routing_key = 'task_queue')
	{
		$properties = [
			'correlation_id' => uniqid(),
			'reply_to' => $this->callback_queue
		];

		if (is_string($body)) {
			$msg = new AMQPMessage( (string) $body,$properties);
			$this->result = $this->channel->basic_publish($msg, '', $routing_key);
		}

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

		return $this->result;
	}


	/**
	 * [批量发送信息]
	 * @author: libingke
	 * @param string $body 消息主体
	 * @param string $routing_key
	 * @return array 返回数据
	 */
	public function batchSend($body, $routing_key = '')
	{
		$properties = [
			'correlation_id' => uniqid(),
			'reply_to' => $this->callback_queue
		];

		if (is_array($body)) {
			$msg = new AMQPMessage((string) $body, $properties);
			$this->result = $this->channel->batch_basic_publish($msg, '', $routing_key);
		}

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

		return $this->result;
	}

	/**
	 * [消费信息]
	 * @author: libingke
	 * @param string $queue 队列名称
	 * @param string $str
	 * @return array 返回数据
	 */
	public function receive($queue, $str)
	{
		$callback = function($msg) {
			echo " [x] Received ", $msg->body, "\n";
		};

		$this->result = $this->channel->basic_consume($queue, '', false, true, false, false, $callback);

		while(count($this->channel->callbacks)) {
			$this->channel->wait();
		}

		return $this->result;
	}

	/**
	 * [批量消费信息]
	 * @author: libingke
	 * @param string $queue 队列名称
	 * @param string $arr
	 * @return array 返回数据
	 */
	public function batchReceive($queue, $arr)
	{
		$callback = function($msg) {
			echo " [x] Received ", $msg->body, "\n";
		};

		$this->result = $this->channel->basic_consume($queue, '', false, true, false, false, $callback);

		while(count($this->channel->callbacks)) {
			$this->channel->wait();
		}

		return $this->result;
	}

	/**
	 * [删除信息]
	 * @author: libingke
	 */
	public function delete()
	{

	}

	public function on_response($rep)
	{
		if($rep->get('correlation_id') == $this->corr_id) {
			$this->result .= $rep->body;
			$this->response = $rep->body;
		}
	}

    public static function CallMq($n)
	{

        $connection =   new AMQPStreamConnection(
            self::HOST, self::PORT, self::USER, self::PASS
		);
        $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
		);
        $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;
    }
}