<?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:----MjE3NTU0OTExNjcyOTY3MSA4OTEzMDQ0MDgxOTk0ODcyIDUyODk4NzE3MjUxMTMyMjA=