<?php defined('SYSPATH') or die('No direct access allowed.');

/**
 *
 * @package    PTA
 * @subpackage Nodes
 * @category   Models
 * @author     Deon George
 * @copyright  (c) 2010 phpTSMadmin Development Team
 * @license    http://phptsmadmin.sf.net/license.html
 */
class Model_NODE extends ORMTSM {
	protected $_table_name = 'NODES';
	protected $_primary_key = 'NODE_NAME';
	protected $_has_many = array(
		'FILESPACE'=>array('foreign_key'=>'NODE_NAME','far_key'=>'FILESPACE_NAME'),
	);

	protected $_formats = array(
		'REG_TIME'=>array('ORMTSM::date'=>array('d-M-Y')),
		'PWSET_TIME'=>array('ORMTSM::date'=>array('d-M-Y')),
		'LASTACC_TIME'=>array('ORMTSM::date'=>array('d-M-Y')),
		'LASTSESS_SENT'=>array('number_format'=>array(0)),
		'LASTSESS_RECVD'=>array('number_format'=>array(0)),
		'LASTSESS_DURATION'=>array('number_format'=>array(2)),
		'LASTSESS_IDLEWAIT'=>array('number_format'=>array(2)),
		'LASTSESS_COMMWAIT'=>array('number_format'=>array(2)),
		'LASTSESS_MEDIAWAIT'=>array('number_format'=>array(2)),
	);

	protected $_sorting = array(
		'NODE_NAME'=>'ASC',
	);

	// Pools used by a node.
	private $pools = array();

	public function tsmclientversion() {
		return sprintf('%s.%s.%s.%s',$this->CLIENT_VERSION,$this->CLIENT_RELEASE,$this->CLIENT_LEVEL,$this->CLIENT_SUBLEVEL);
	}

	// @todo This needs to return the global configuration.
	public function passexp() {
		if ($this->PASSEXP)
			return 'TBA';
		else
			return _('No Set');
	}

	public function lasttransferpercent() {
		return 100-($this->LASTSESS_IDLEWAIT+$this->LASTSESS_COMMWAIT+$this->LASTSESS_MEDIAWAIT);
	}

	public function lasttransfertime() {
		return $this->LASTSESS_DURATION*($this->lasttransferpercent()/100);
	}

	public function lastsendperformance() {
		if ($this->lasttransfertime())
			return $this->LASTSESS_SENT/$this->lasttransfertime()/1024/1024;
		else
			return _('N/A');
	}

	public function lastreceiveperformance() {
		if ($this->lasttransfertime())
			return $this->LASTSESS_RECVD/$this->lasttransfertime()/1024/1024;
		else
			return _('N/A');
	}

	public function lastsendaggperformance() {
		return $this->LASTSESS_SENT/$this->LASTSESS_DURATION/1024/1024;
	}

	public function lastreceiveaggperformance() {
		return $this->LASTSESS_RECVD/$this->LASTSESS_DURATION/1024/1024;
	}

	// @todo This should return the system setting (cloptset), if the node setting is not configured.
	public function txngroupmax() {
		return $this->display('TXNGROUPMAX');
	}

	// Work out all the storage pools used by a node.
	// $dtype is BACKUP or ARCHIVE
	public function storagepools($dtype) {
		return isset($this->pools[$dtype]) ? $this->pools[$dtype] : $this->_getpools($dtype);
	}

	private function _getpools($dtype) {
		$this->pools[$dtype] = array();

		foreach ($this->FILESPACE->find_all() as $fso) {
			foreach ($fso->storagepools($dtype) as $pool_name) {
				$po = ORM::Factory('stgpool',$pool_name);

				if (! isset($this->pools[$dtype][$po->POOLTYPE]) OR ! in_array($pool_name,$this->pools[$dtype][$po->POOLTYPE]))
					$this->pools[$dtype][$po->POOLTYPE][] = $pool_name;
			}
		}

		return $this->pools[$dtype];
	}

	// Return the storage pools used for a backup type
	// $dtype is BACKUP or ARCHIVE
	public function getStoragePools($dtype,$ptype) {
		if (! isset($this->pools[$dtype]))
			$this->_getpools($dtype);

		return isset($this->pools[$dtype][$ptype]) ? $this->pools[$dtype][$ptype] : array();
	}

	/**
	 * Get all the nodes by OS
	 */
	public function byos() {
		$a = $this->select('count(*) AS node_name,platform_name')
			->group_by('platform_name')
			->order_by('platform_name');

		return $a->find_all();
	}
}
?>