<?php
/**
* shipping class
*
* @package classes
* @copyright Copyright 2003-2012 Zen Cart Development Team
* @copyright Portions Copyright 2003 osCommerce
* @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
* @version GIT: $Id: Author: DrByte  Thu Aug 2 11:37:22 2012 -0400 Modified in v1.5.1 $
*/
if (!defined('IS_ADMIN_FLAG')) {
die('Illegal Access');
}
/**
* shipping class
* Class used for interfacing with shipping modules
*
* @package classes
*/
class shipping extends base {
var $modules;
// class constructor
function shipping($module = '') {
global $PHP_SELF, $messageStack;
if (defined('MODULE_SHIPPING_INSTALLED') && zen_not_null(MODULE_SHIPPING_INSTALLED)) {
$this->modules = explode(';', MODULE_SHIPPING_INSTALLED);
$include_modules = array();
if ( (zen_not_null($module)) && (in_array(substr($module['id'], 0, strpos($module['id'], '_')) . '.' . substr($PHP_SELF, (strrpos($PHP_SELF, '.')+1)), $this->modules)) ) {
$include_modules[] = array('class' => substr($module['id'], 0, strpos($module['id'], '_')), 'file' => substr($module['id'], 0, strpos($module['id'], '_')) . '.' . substr($PHP_SELF, (strrpos($PHP_SELF, '.')+1)));
} else {
reset($this->modules);
while (list(, $value) = each($this->modules)) {
$class = substr($value, 0, strrpos($value, '.'));
$include_modules[] = array('class' => $class, 'file' => $value);
}
}
for ($i=0, $n=sizeof($include_modules); $i<$n; $i++) {
//          include(DIR_WS_LANGUAGES . $_SESSION['language'] . '/modules/shipping/' . $include_modules[$i]['file']);
$lang_file = zen_get_file_directory(DIR_WS_LANGUAGES . $_SESSION['language'] . '/modules/shipping/', $include_modules[$i]['file'], 'false');
if (@file_exists($lang_file)) {
include_once($lang_file);
} else {
if (IS_ADMIN_FLAG === false && is_object($messageStack)) {
$messageStack->add('checkout_shipping', WARNING_COULD_NOT_LOCATE_LANG_FILE . $lang_file, 'caution');
} else {
$messageStack->add_session(WARNING_COULD_NOT_LOCATE_LANG_FILE . $lang_file, 'caution');
}
}
$this->enabled = TRUE;
$this->notify('NOTIFY_SHIPPING_MODULE_ENABLE', $include_modules[$i]['class']);
if ($this->enabled)
{
include_once(DIR_WS_MODULES . 'shipping/' . $include_modules[$i]['file']);
$GLOBALS[$include_modules[$i]['class']] = new $include_modules[$i]['class'];
}
}
}
}
function calculate_boxes_weight_and_tare() {
global $total_weight, $shipping_weight, $shipping_quoted, $shipping_num_boxes;
$this->abort_legacy_calculations = FALSE;
$this->notify('NOTIFY_SHIPPING_MODULE_PRE_CALCULATE_BOXES_AND_TARE');
if ($this->abort_legacy_calculations) return;
if (is_array($this->modules)) {
$shipping_quoted = '';
$shipping_num_boxes = 1;
$shipping_weight = $total_weight;
$za_tare_array = preg_split("/[:,]/" , SHIPPING_BOX_WEIGHT);
$zc_tare_percent= $za_tare_array[0];
$zc_tare_weight= $za_tare_array[1];
$za_large_array = preg_split("/[:,]/" , SHIPPING_BOX_PADDING);
$zc_large_percent= $za_large_array[0];
$zc_large_weight= $za_large_array[1];
// SHIPPING_BOX_WEIGHT = tare
// SHIPPING_BOX_PADDING = Large Box % increase
// SHIPPING_MAX_WEIGHT = Largest package
/*
if (SHIPPING_BOX_WEIGHT >= $shipping_weight*SHIPPING_BOX_PADDING/100) {
$shipping_weight = $shipping_weight+SHIPPING_BOX_WEIGHT;
} else {
$shipping_weight = $shipping_weight + ($shipping_weight*SHIPPING_BOX_PADDING/100);
}
*/
switch (true) {
// large box add padding
case(SHIPPING_MAX_WEIGHT <= $shipping_weight):
$shipping_weight = $shipping_weight + ($shipping_weight*($zc_large_percent/100)) + $zc_large_weight;
break;
default:
// add tare weight < large
$shipping_weight = $shipping_weight + ($shipping_weight*($zc_tare_percent/100)) + $zc_tare_weight;
break;
}
if ($shipping_weight > SHIPPING_MAX_WEIGHT) { // Split into many boxes
//        $shipping_num_boxes = ceil($shipping_weight/SHIPPING_MAX_WEIGHT);
$zc_boxes = zen_round(($shipping_weight/SHIPPING_MAX_WEIGHT), 2);
$shipping_num_boxes = ceil($zc_boxes);
$shipping_weight = $shipping_weight/$shipping_num_boxes;
}
}
$this->notify('NOTIFY_SHIPPING_MODULE_CALCULATE_BOXES_AND_TARE');
}
function quote($method = '', $module = '', $calc_boxes_weight_tare = true) {
$quotes_array = array();
if ($calc_boxes_weight_tare) $this->calculate_boxes_weight_and_tare();
if (is_array($this->modules)) {
$include_quotes = array();
reset($this->modules);
while (list(, $value) = each($this->modules)) {
$class = substr($value, 0, strrpos($value, '.'));
if (zen_not_null($module)) {
if ( ($module == $class) && ($GLOBALS[$class]->enabled) ) {
$include_quotes[] = $class;
}
} elseif ($GLOBALS[$class]->enabled) {
$include_quotes[] = $class;
}
}
$size = sizeof($include_quotes);
for ($i=0; $i<$size; $i++) {
$quotes = $GLOBALS[$include_quotes[$i]]->quote($method);
if (is_array($quotes)) $quotes_array[] = $quotes;
}
}
$this->notify('NOTIFY_SHIPPING_MODULE_GET_ALL_QUOTES', $quotes_array);
return $quotes_array;
}
function cheapest() {
if (is_array($this->modules)) {
$rates = array();
reset($this->modules);
while (list(, $value) = each($this->modules)) {
$class = substr($value, 0, strrpos($value, '.'));
if ($GLOBALS[$class]->enabled) {
$quotes = $GLOBALS[$class]->quotes;
$size = sizeof($quotes['methods']);
for ($i=0; $i<$size; $i++) {
//              if ($quotes['methods'][$i]['cost']) {
if (isset($quotes['methods'][$i]['cost'])){
$rates[] = array('id' => $quotes['id'] . '_' . $quotes['methods'][$i]['id'],
'title' => $quotes['module'] . ' (' . $quotes['methods'][$i]['title'] . ')',
'cost' => $quotes['methods'][$i]['cost'],
'module' => $quotes['id']
);
}
}
}
}
$cheapest = false;
$size = sizeof($rates);
for ($i=0; $i<$size; $i++) {
if (is_array($cheapest)) {
// never quote storepickup as lowest - needs to be configured in shipping module
if ($rates[$i]['cost'] < $cheapest['cost'] and $rates[$i]['module'] != 'storepickup') {
$cheapest = $rates[$i];
}
} else {
if ($rates[$i]['module'] != 'storepickup') {
$cheapest = $rates[$i];
}
}
}
$this->notify('NOTIFY_SHIPPING_MODULE_CALCULATE_CHEAPEST', $cheapest);
return $cheapest;
}
}
}