<?php
//cross orign prevent
$option = $_POST['target'];
$param = $_POST['param'];

//session_start();
session_destroy();


if($option == "filter"){
	$param = implode(',',$param);
	//var_dump($param);
	$postdata = http_build_query(
    		array("filters"=>$param)
	);
	$opts = array(
	'http' =>
  	  array(
       		 'method'  => 'POST',
       		 'header'  => 'Content-Type: application/x-www-form-urlencoded',
       		 'content' => $postdata
    		),
       'ssl' =>array(
    	      'verify_peer'=>false,
    	      'verify_peer_name'=>false,
                ),

	);
	//var_dump($opts);
	echo file_get_contents("https://sms.ecoledelangues.be/shop/loadData", false, stream_context_create($opts));
}
else if($option == "add"){

	//$param = implode(',',$param); // "product_id,product_qty"

	$product_id =  $param['product'];
	$product_qty =  $param['quantity'];
	$product = get_product($product_id);
	//echo "++>";
	//var_dump($product);
	$sessionCart = $_SESSION['cart'];

	if($sessionCart != NULL && array_key_exists($product_id,$sessionCart)){

		$prevQty = $sessionCart[$product_id]['qty'];
		$sessionCart[$product_id]['qty'] = $prevQty + $product_qty;
	}
	else {
		$product_item = array(
			'data' => json_decode($product),
			'qty' => $product_qty,
			'option' => null,
			);
		$sessionCart[$product_id]= $product_item;
	}
	echo json_encode($sessionCart);
  $_SESSION['cart'] = $sessionCart;
}
else if($option == "cart"){
	$sessionCart = $_SESSION['cart'];
  $qty = 0;
  $total = 0;

	var_dump($_SESSION);
  foreach ($sessionCart as $key => $product) {
    // var_dump($product['data'][0]['Course_Price']);
    $qty = $qty + $product['qty'];
    $price = $product['data'][0]['Course_Price'];
    $total = $total + ($price * $qty);
  }

  $data = array(
    "cart_qty" => $qty,
    "cart_total" => $total,
    "cart" => $sessionCart
  );
  echo json_encode($data);
}
else{

}

function get_product($id){
	 $postdata = 	$postdata = http_build_query(
			array("product"=>$id)
		);
	  $opts = array(
	    'http' =>
	      array(
	        'method'  => 'POST',
			 		'content' => $postdata,
	        'header'  => 'Content-Type: application/x-www-form-urlencoded',
	         ),
	     'ssl' =>
			  array(
	          'verify_peer'=>false,
	          'verify_peer_name'=>false,
	          ),
	        );
	        //var_dump($postdata);
	return file_get_contents("https://sms.ecoledelangues.be/shop/getProduct", false, stream_context_create($opts));
}