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cart.php
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cart.php
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<?
$discount = json_decode('{"STORE_WIDE":1,"CATEGORY_WIDE":2,"BOGO":4,"GROUP_WISE":8,"FINAL":16,"ALL":255}', true);
$couponConsts = json_decode('{"STORE_PERC":1,"STORE_DOLLAR":2,"SORT_ASCX":1,"SORT_DESCX":2,"SALE":1,"DISCOUNT":2,"COUPON":3}', true);
$rawCoupon = json_decode('{"PR_SW_SL":11,"PR_CW_SL":21,"PR_SW":12,"PR_CW":22,"PR_BG":42,"PS_SW":13,"PS_CW":23,"PS_BG":43}', true);
$rawSequence = json_decode('[11,21,22,23,42,43,12,13]', true);
$couponExclude = json_decode('{"11":[11,21,22,23],"12":[],"13":[],"21":[],"22":[],"23":[],"42":[],"43":[]}', true);
$cart = json_decode('{"categories":{"collections":{},"tags":{},"metas":{},"type":{},"vendor":{}},"products":{},"variants":{},"coupons":{"pre":[],"post":[]},"cost":0,"weight":0,"quantity":0,"corrections":{},"canUse":255}', true);
$categories = array("collections", "tags", "metas", "vendor", "type");
function product($quantity, $collections, $tags, $metas, $vendor, $type){
global $discount;
$ret = array();
$ret['collections'] = $collections;
$ret['tags'] = $tags;
$ret['metas'] = $metas;
$ret['vendor'] = $vendor;
$ret['type'] = $type;
$ret['quantity'] = $quantity+0;
$ret['canUse'] = $discount['ALL'];
$ret['variants'] = array();
$ret['totalCost'] = null;
return $ret;
}
function variant($quantity, $cost, $weight){
global $discount;
$ret = array();
$ret['quantity'] = $quantity+0;
$ret['remainingQuantity'] = $quantity+0;
$ret['cost'] = $cost;
$ret['weight'] = $weight;
$ret['canUse'] = $discount['ALL'];
$ret['totalCost'] = null;
return $ret;
}
function varPrice($id, $price, &$ref){
$ret = array();
$ret['id'] = $id;
$ret['price'] = $price;
$ret['ref'] = &$ref;
return $ret;
}
function insertVariant($product, $variant, $quantity){
global $cart;
$prod = &$cart['products'][$product['id']];
if($prod){
$vari = &$prod['variants'][$variant['shadow_id']];
if($vari){
$vari['quantity'] += $quantity+0;
}else{
$product['variants'][$variant['shadow_id']] = variant($quantity, $variant['price'], $variant['weight']);
}
$prod['quantity'] += $quantity+0;
}else{
$prod = product($quantity, $product['collections'], $product['tags'], $product['metas'],
$product['vendor'], $product['type']);
$prod['variants'][$variant['shadow_id']] = variant($quantity, $variant['price'], $variant['weight']);
addProductToCategories($prod, $product['id']);
$cart['products'][$product['id']] = $prod;
$cart['variants'][$variant['shadow_id']] = $product['id'];
}
}
function addProductToCategories($product, $id){
global $categories;
for ($i=0;$i<count($categories);$i++)
addProductToCategory($categories[$i], $product[$categories[$i]], $id);
}
function addProductToCategory($name, $list, $id){
global $cart;
if(is_string($list)){
if(!$cart['categories'][$name][$list])
$cart['categories'][$name][$list] = array();
array_push($cart['categories'][$name][$list], $id);
}else{
for ($i=0;$i<count($list);$i++){
if(!$cart['categories'][$name][$list[$i]])
$cart['categories'][$name][$list[$i]] = array();
array_push($cart['categories'][$name][$list[$i]], $id);
}
}
}
function indexOfCoupon($code, &$coupons){
for ($i=0;$i<count($coupons);$i++)
if($coupons[$i]['code']==$code) return $i+1;
return 0;
}
function addPost($coupon){
global $cart;
if(indexOfCoupon($coupon['code'],$cart['coupons']['post'])) return false;
array_push($cart['coupons']['post'], $coupon); return true;
}
function addPre($coupon){
global $cart;
if(indexOfCoupon($coupon['code'],$cart['coupons']['pre'])) return false;
array_push($cart['coupons']['pre'], $coupon); return true;
}
function byCategory($category, $name, &$exclude, $discountType){
global $cart;
$products = $cart['categories'][$category][$name]?$cart['categories'][$category][$name]:array();
$returnee = array(); $variants = null;
for ($i=0;$i<count($products);$i++){
if($exclude[$products[$i]]||(!($exclude[$products[$i]]=true)))continue; //check out for shashkay
else {
$variants = $cart['products'][$products[$i]]['variants'];
foreach($variants as $varId => $variant){
if(($variants['canUse']&$discountType)==$discountType)
array_push($returnee, varPrice($varId, $variant['cost'], $variant));
}
}
}
return $returnee;
}
function byCategoryVarN($category, $name, &$exclude, $discountType){
global $cart;
$products = $cart['categories'][$category][$name]?$cart['categories'][$category][$name]:array();
$returnee = array(); $variants = null;
for ($i=0;$i<count($products);$i++){
if($exclude[$products[$i]]||(!($exclude[$products[$i]]=true)))continue; //check out for shashkay
else {
$variants = $cart['products'][$products[$i]]['variants'];
foreach($variants as $varId => $variant){
if(($variants['canUse']&$discountType)==$discountType){
for ($j=0;$j<$variant['remainingQuantity'];$j++)
array_push($returnee, varPrice($varId, $variant['cost'], $variant));
}
}
}
}
return $returnee;
}
function updateProduct(&$product){
updateProductQuantity($product);
updateProductCost($product);
}
function updateProductQuantity(&$product){
$product['quantity'] = 0;
foreach($product['variants'] as $varId => $variant)
$product['quantity'] += $variant['quantity'];
}
function updateProductCost(&$product){
$product['totalCost'] = 0;
foreach($product['variants'] as $varId => &$variant)
$product['totalCost'] += updateVariantCost($variant);
return $product['totalCost'];
}
function updateVariantCost(&$variant) {
global $cart;
return ($variant['totalCost'] = $variant['quantity'] * $variant['cost']);
}
function updateCartCost(){
global $cart;
$cart['cost'] = 0;
foreach ($cart['products'] as $prodId => &$product)
$cart['cost'] += updateProductCost($product);
foreach ($cart['corrections'] as $couponId => $correction)
$cart['cost'] -= $correction;
$cart['cost'] = $cart['cost'] < 0 ? 0 : $cart['cost'];
return $cart['cost'];
}
function updateCartQuantity(){
global $cart;
$cart['quantity'] = 0;
foreach ($cart['products'] as $prodId => $product)
$cart['quantity'] += $product['quantity'];
return $cart['quantity'];
}
function updateCartWeight(){
global $cart;
$cart['weight'] = 0;
foreach ($cart['products'] as $prodId => $product){
foreach ($product['variants'] as $varId => $variant){
$cart['weight'] += $variant['weight']*$variant['quantity'];
}
}
return $cart['weight'];
}
function apply(){
global $cart;
global $rawSequence;
global $discount;
global $couponExclude;
$coupons = array_values(array_merge($cart['coupons']['pre'], $cart['coupons']['post']));
for ($j=0; $j<count($rawSequence);$j++) {
for ($i=0;$i<count($coupons);$i++) {
if($coupons[$i]['raw_type']!=$rawSequence[$j])continue;
switch($coupons[$i]['type']){
case $discount['STORE_WIDE']:
store($cart,json_decode($coupons[$i]['params'],true),$coupons[$i]['raw_type'],$discount['STORE_WIDE']);
break;
case $discount['CATEGORY_WIDE']:
category($cart,json_decode($coupons[$i]['params'],true),$discount['CATEGORY_WIDE']);
break;
case $discount['BOGO']:
bogo($cart,json_decode($coupons[$i]['params'],true),$discount['BOGO']|$discount['CATEGORY_WIDE']);
break;
case $discount['GROUP_WISE']:
break;
default:
}
array_splice($coupons,$i,1);
$exclude = $couponExclude[$rawSequence[$j]];
for($k=0;$k<count($exclude);$k++){
for($l=0;$l<count($coupons);$l++){
if($coupons[$l]['raw_type']!=$exclude[$k])continue;
array_splice($coupons,$i,1);
$l--;
}
}
$i=-1;
}
}
return $cart;
}
function store(&$cart, $params, $rawType, $discountType){ //storewide
global $couponConsts;
global $rawCoupon;
if($params['type']==$couponConsts['STORE_PERC']){
if($rawType!=$rawCoupon['PR_SW_SL']){
if($cart['cost']>=($params['min']*100)){
$cart['cost'] = round($cart['cost']*(1-($params['off']/100)));
}
}else if($cart['cost']>=($params['min']*100)){
foreach($cart['products'] as $prodId => &$product){
foreach($product['variants'] as $varId => &$variant){
$variant['cost'] = round($variant['cost']*(1-($params['off']/100)));
}
}
updateCartCost();
}
} else if($params['type']==$couponConsts['STORE_DOLLAR']){
if($cart['cost']>=($params['min']*100)){
$cart['cost'] -= ($cart['cost']<($params['off']*100))?$cart['cost']:($params['off']*100);
}
}
}
function category(&$cart, $params, $discountType){ //categorywide
$variants = array();
$done = array();
foreach($params['categories'] as $catName => $category){
for ($i=0;$i<count($category);$i++){
$stuff = byCategory($catName, $category[$i], $done, $discountType);
$variants = array_values(array_merge($variants, $stuff));
}
}
$tempCost = 0;
for ($j=0;$j<count($variants);$j++) {
$tempCost += $variants[$j]['ref']['totalCost'];
if($tempCost>=($params['min']*100)) break;
}
if($tempCost<($params['min']*100)) return;
for ($j=0;$j<count($variants);$j++) {
if($params['type']==$couponConsts['STORE_PERC']){
$variants[$j]['ref']['cost'] = round($variants[$j]['ref']['cost']*(1-($params['off']/100)));
} else if($params['type']==$couponConsts['STORE_DOLLAR']){
$variants[$j]['ref']['cost'] = ($variants[$j]['ref']['cost']<($params['off']*100))?0:
($variants[$j]['ref']['cost']-($params['off']*100));
}
}
updateCartCost();
}
function bogo(&$cart, $params, $discountType){ //and variations
$cart['corrections'][$params['name']] = 0;
$bo = array();$go = array();
$used = array();
$done = array();
foreach($params['bo']['categories'] as $catName => $category){
for ($i=0;$i<count($category);$i++){
$stuff = byCategoryVarN($catName, $category[$i], $done, $discountType);
$bo = array_values(array_merge($bo, $stuff));
}
}
$done = array();
foreach($params['go']['categories'] as $catName => $category){
for ($i=0;$i<count($category);$i++){
$stuff = byCategoryVarN($catName, $category[$i], $done, $discountType);
$go = array_values(array_merge($go, $stuff));
}
}
$bo = usort($bo, "sortAsc");
$go = usort($go, "sortDesc");
$innerUsed = array();
while(count($bo)>=$params['bo']['items']&&count($go)>=$params['go']['items']){
$innerUsed = array();$shiftedGo = array();
for ($i=0;$i<$params['bo']['items'];$i++) {
$shiftedBo = $bo[0];
if(!$shiftedBo)break 2;
array_shift($bo);
deleteFirstVariant($go, $shiftedBo['id']);
$innerUsed[] = $shiftedBo;
}
for ($i=0;$i<$params['go']['items'];$i++) {
$tempGo = $go[0];
if(!$tempGo)break 2;
array_shift($go);
$shiftedGo[] = $tempGo;
$innerUsed[] = $tempGo;
}
if($params['type']==$couponConsts['STORE_PERC']){
for ($i=0;$i<count($shiftedGo);$i++){
$cart['corrections'][$params['name']] =
round($cart['corrections'][$params['name']]+($shiftedGo[$i]['ref']['cost']*($params['off']/100)));
deleteFirstVariant($bo, $shiftedGo[$i]['id']);
}
} else if($params['type']==$couponConsts['STORE_DOLLAR']){
$tempCost = 0;
for ($i=0;$i<count($shiftedGo);$i++){
$tempCost += $shiftedGo[$i]['ref']['cost'];
deleteFirstVariant($bo, $shiftedGo[$i]['id']);
}
$cart['corrections'][$params['name']] =
round($cart['corrections'][$params['name']]+($tempCost<($params['off']*100)?$tempCost:($params['off']*100)));
}
$used = array_values(array_merge($used, $innerUsed));
}
for ($i=count($used)-1;$i>=0;$i--)
$used[$i]['ref']['remainingQuantity']--;
updateCartCost();
}
function deleteFirstVariant(&$variants, $id){
for ($i=0;$i<count($variants);$i++)
if($variants[$i]['id']==$id) return array_splice($variants,$i,1);
}
function sortAsc(&$left, &$right){
if($left['cost']<$right['cost'])return -1;else if($left['cost']==$right['cost'])return 0;return 1;
}
function sortDesc(&$left, &$right){
if($left['cost']>$right['cost'])return -1;else if($left['cost']==$right['cost'])return 0;return 1;
}
function insertVariants($variants, $products){
for ($i=0;$i<count($variants);$i++){
insertVariant($products[$variants[$i]['product_id']], $variants[$i], $variants[$i]['quantity']);
}
updateCartCost();
updateCartQuantity();
updateCartWeight();
}
?>