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

/**
 * This class supports Children 
 *
 * @package    Membership Database
 * @category   Models
 * @author     Deon George
 * @copyright  (c) 2014 Deon George
 * @license    http://dev.leenooks.net/license.html
 */
class Model_Child extends ORM {
	protected $_start = '42D';		// Minimum age to be accepted (42D = 6 Weeks)
	protected $_max = '4Y';			// Maximum age
	protected $_max_date = '04-30';		// Date Maximum age must be met, eg: 5Y on April 30
	protected $_max_return = '12-31';	// Date to leave the center when max date reached, eg: Jan 1

	protected $_has_many = array(
		'room'=>array('model'=>'Room_Children','foreign_key'=>'child_id','far_key'=>'id'),
	);

	public function filters() {
		return Arr::merge(parent::filters(),array(
			'dob'=>array(array(array($this,'date'), array(':value'))),
		));
	}

	protected $_display_filters = array(
		'dob'=>array(
			array('Site::Date',array(':value')),
		),
	);

	protected $_sub_items_load = array(
		'room'=>'date_start,date_stop',
	);

	private function _dob() {
		$x = new DateTime();

		return $x->setTimestamp($this->dob);
	}

	public function age($asat=NULL,$format='%Yy%Mm') {
		if (is_null($asat))
			$asat = time();

		$dob = $this->_dob();

		$today = new DateTime();
		$today->setTimestamp($asat);

		return $format == '%w' ? sprintf('%02dw',$dob->diff($today)->days/7) : $dob->diff($today)->format($format);
	}

	public function date($value) {
		return is_numeric($value) ? $value : strtotime($value); 
	}

	public function date_enrol_min() {
		$dob = $this->_dob();
		$dob->add(new DateInterval('P'.$this->_start));

		return $format ? $result->format(Kohana::$config->load('config')->date_format) : $result->format('U');
	}

	public function date_enrol_max($format=FALSE) {
		$dob = $this->_dob();
		$dob->add(new DateInterval('P'.$this->_max));

		$last = new DateTime(sprintf('%s-%s',$dob->format('Y'),$this->_max_date));
		$x = $dob->diff($last);

		$result = new DateTime(sprintf('%s-%s',$dob->format('Y')+($x->invert ? 1 : 0),$this->_max_return));

		return $format ? $result->format(Company::instance()->date_format()) : $result->format('U');
	}

	public function save(Validation $validation=NULL) {
		$changed = $this->changed();

		parent::save($validation);

		// Insert into waitlist
		$rco = ORM::factory('Room_Children',array('child_id'=>$this,'code'=>$_POST['room']['code']));

		$rco->values($_POST['room']);
		$rco->child_id = (string)$this;

		foreach ($_POST['room']['R'] as $k => $v) {
			if (! $v OR isset($_POST['room']['d_'.$k]))
				continue;

			$rco->{'d_'.$k} = NULL;
		}

		if ($rco->changed() AND (! $rco->save()))
			$rco->reload()->values($_POST['room']);

		return $this->reload();
	}
}
?>