<?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:----Mjc4NzU3NTM1MDU0MzE5MiA2ODExMjA3OTYwNjI0MjE4IDgzNDE0ODU1MjcyNzE1MDE=