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

/**
 * This class supports Services
 *
 * @package    OSB
 * @subpackage Service
 * @category   Models
 * @author     Deon George
 * @copyright  (c) 2010 Open Source Billing
 * @license    http://dev.osbill.net/license.html
 */
class Model_Service extends ORMOSB {
	// Relationships
	protected $_has_many = array(
		'invoice'=>array('through'=>'invoice_item'),
		'adsl_plan'=>array('through'=>'service__adsl'),
	);
	protected $_has_one = array(
		'service_adsl'=>array(),
	);
	protected $_belongs_to = array(
		'product'=>array(),
		'account'=>array(),
	);

	protected $_formats = array(
		'active'=>array('StaticList_YesNo::display'=>array()),
		'date_next_invoice'=>array('Config::date'=>array()),
		'recur_schedule'=>array('StaticList_RecurSchedule::display'=>array()),
		'price'=>array(
			'Tax::add'=>array(),
			'Currency::display'=>array(),
		),
	);

	/**
	 * Display the service number
	 */
	public function svcnum() {
		return sprintf('%05s',$this->id);
	}

	// Nothing to directly display on invoices for this module.
	public function invoice_display() {
		if ($this->sku)
			return sprintf('%s: %s',_('Service'),$this->sku);
		else
			return '';
	}

	public function name() {
		return $this->product->product_translate->find()->name;
	}

	/**
	 * Find invoices associated with this service
	 */
	public function invoices() {
		$return = array();

		foreach ($this->invoice->distinct('id')->find_all() as $invoice) {
			$return[$invoice->id]['due'] = $invoice->due();
		}

		return $return;
	}

	/**
	 * Find invoices currently outstanding associated with this service
	 */
	public function invoices_due() {
		$return = array();

		foreach ($this->invoices() as $id => $invoice)
			if ($invoice['due'])
				array_push($return,$invoice);

		return $return;
	}

	/**
	 * Calculate the total of invoices due for this service
	 */
	public function invoices_due_total() {
		$total = 0;
		foreach ($this->invoices_due() as $invoice)
			$total += $invoice['due'];

		return $total;
	}

	// @todo To implement
	/**
	 * Calculate the tax for this item
	 */
	public function tax() {
		return $this->price * .1;
	}
}
?>