<?php

namespace Channel;

use Workerman\Connection\TcpConnection;

class Queue
{
    public $name = 'default';
    public $watcher = array();
    public $consumer = array();
    protected $queue = null;

    public function __construct($name)
    {
        $this->name = $name;
        $this->queue = new \SplQueue();
    }

    /**
     * @param TcpConnection $connection
     */
    public function addWatch($connection)
    {
        if (!isset($this->watcher[$connection->id])) {
            $this->watcher[$connection->id] = $connection;
            $connection->watchs[] = $this->name;
        }
    }

    /**
     * @param TcpConnection $connection
     */
    public function removeWatch($connection)
    {
        if (isset($connection->watchs) && in_array($this->name, $connection->watchs)) {
            $idx = array_search($this->name, $connection->watchs);
            unset($connection->watchs[$idx]);
        }
        if (isset($this->watcher[$connection->id])) {
            unset($this->watcher[$connection->id]);
        }
        if (isset($this->consumer[$connection->id])) {
            unset($this->consumer[$connection->id]);
        }
    }

    /**
     * @param TcpConnection $connection
     */
    public function addConsumer($connection)
    {
        if (isset($this->watcher[$connection->id]) && !isset($this->consumer[$connection->id])) {
            $this->consumer[$connection->id] = $connection;
        }
        $this->dispatch();
    }

    public function enqueue($data)
    {
        $this->queue->enqueue($data);
        $this->dispatch();
    }

    private function dispatch()
    {
        if ($this->queue->isEmpty() || count($this->consumer) == 0) {
            return;
        }

        while (!$this->queue->isEmpty()) {
            $data = $this->queue->dequeue();
            $idx = key($this->consumer);
            $connection = $this->consumer[$idx];
            unset($this->consumer[$idx]);
            $connection->send(serialize(array('type'=>'queue', 'channel'=>$this->name, 'data' => $data)));
            if (count($this->consumer) == 0) {
                break;
            }
        }
    }

    public function isEmpty()
    {
        return empty($this->watcher) && $this->queue->isEmpty();
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDc4NTAwNDQ3MzUwNTg1OSA3MzA5ODEzNDE3MDczOTA4IDM2NDMyNDMwMDc1OTQ4MDQ=