<?php namespace Maze\Data\Mongo;

use Maze\Debug\Process as Debug;

class Connect
{
	/**
     * handle
     *
     * @var object
     */
	private $handle;

	/**
     * instance
     *
     * @var string
     */
    static protected $instance;

    /**
     * getInstance
     * 
     * @return Maze\Data\Mongo\Connect;
     */
    static public function getInstance($config)
    {
    	$key = $config['host'] . $config['database'];
        if(empty(self::$instance[$key]))
        {
            self::$instance[$key] = new self();
            self::$instance[$key]->init($config);
        }

        return self::$instance[$key];
    }

    
    /**
     * init
     *
     * @return mixd
     */
	private function init($config)
	{
		if(strpos($config['host'], ':') !== false) list($config['host'], $config['port']) = explode(':', $config['host']);

        try
        {
			$mongo = new \Mongo('mongodb://'.$config['host'].':'.$config['port'], array("connectTimeoutMS"=>1000));
			
			$this->handle = $mongo->selectDB($config['database']);

            Debug::log('mongodb ' . $config['host'] . ' connected');
        }
        catch(\PDOException $e)
        {
            echo $e->getMessage();die;
        }
	}

	/**
     * __destruct
     *
     * @return mixd
     */
    public function __destruct()
    {
        $this->close();
    }
    
    /**
     * table
     *
     * @return mixd
     */
    public function table($table)
    {
        return $this->handle->selectCollection($table);
    }

	/**
     * handle
     *
     * @return object
     */
	public function handle()
	{
		return $this->handle;
	}

	/**
     * close
     *
     * @return mixd
     */
    public function close()
    {
		$this->handle = null;
	}
}