<?php 
/** SMS - Selling Made Simple
 * Copyright 2007 by Kevin Grandon (hide@address.com)
 * This project's homepage is: http://sellingmadesimple.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * BUT withOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
**/

class TableBasedComponent extends Object 
{

	function beforeFilter ()
	{
	}

    function startup(&$controller)
	{
    }


	function calculate ()
	{
		loadModel('ShippingMethod');
		$this->ShippingMethod =& new ShippingMethod();
		$key_values = $this->ShippingMethod->findByCode('table_based');
	
		$data = array();
		if(!empty($key_values['ShippingMethodValue']))
			$data = array_combine(Set::extract($key_values, 'ShippingMethodValue.{n}.key'),
							  Set::extract($key_values, 'ShippingMethodValue.{n}.value'));	
		
		// Calculate the unit of measure depending on what's set in the database
		global $order;
		$units = 0;		
		switch($data['table_based_type'])
		{
			case 'products':
				$units = count($order['OrderProduct']);
			break;
			case 'total':
				$units = $order['Order']['total'];
			break;		
			case 'weight':
				foreach($order['OrderProduct'] AS $product)				
				{
					$units += ($product['weight'] * $product['quantity']);
				}
			break;				
		}
		
		// Loop through the rates value
$newline = 
'
';	
		$rates = str_replace($newline,'',$data['table_based_rates']);
		$rates = explode(',',$rates);
		
		$keyed_rates = array();
		foreach($rates AS $key => $value)
		{
			$temp_rates = explode(':',$value);
			$temp_rate_key = $temp_rates['0'];
			$keyed_rates[$temp_rate_key] = $temp_rates['1'];
		}
		
		$keyed_rates = array_reverse($keyed_rates,true);

		$shipping_price = 0;
		foreach($keyed_rates AS $key => $value)
		{
			if(($key < $units)&&($shipping_price == 0))
			{
				$shipping_price = $value;
			}
		}
		
		return $shipping_price;
	}
	
	
}
?>