<?php

namespace Channel;

use Workerman\Connection\TcpConnection;

class Queue
{
    public $name = 'default';
    public $watcher = [];
    public $consumer = [];
    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:----OTAyNDY2Njc1NDQ4MTY0MCA4MzM0MTIxNjA2NTc5NTEzIDYyNzEwMjA2NDY5MzIxMzM=