Criteo tracking on Thank you page

wc-tracking-criteo-thank-you-page

<?php
// Criteo Thank you page - Sales Confirmation page
add_action( 'woocommerce_thankyou', 'criteo_tracking_cart', 80 );
function criteo_tracking_cart( $order_id ) {
   	$order = new WC_Order( $order_id );	  
	$order_nr = $order->get_order_number();		
	$order_email = get_user_meta( $order->user_id, 'billing_email', true );	
   
   	$source_address = $order_email;
	$processed_address = strtolower($source_address); //convert address to lower case
	$processed_address = trim($processed_address); //trimming leading and trailing spaces
	$processed_address = mb_convert_encoding($processed_address, "UTF-8", "ISO-8859-1"); //conversion from ISO-8859-1 to UTF-8 (replace "ISO-8859-1" with the source encoding of your string)
	$processed_address = md5($processed_address); //hash address with MD5 algorithm 
 ?>
    <!-- Criteo tracking conversation script -->
    <script type="text/javascript">
	var deviceType = /iPad/.test(navigator.userAgent) ? "t" : /Mobile|iP(hone|od)|Android|BlackBerry|IEMobile|Silk/.test(navigator.userAgent) ? "m" : "d";
	window.criteo_q = window.criteo_q || [];
	window.criteo_q.push(
		{ event: "setAccount", account: XXXXX },
		{ event: "setEmail", email: "<?php echo $processed_address; ?>" },
		{ event: "setSiteType", type: deviceType },
		{ event: "trackTransaction", id: "<?php echo $order_nr; ?>", item: [<?php 
		// This is how to grab line items from the order 
		$line_items = $order->get_items();		
		// This loops over line items
		foreach ( $line_items as $item ) {			
			if ($item['variation_id']) {
            	$price = get_post_meta($item['variation_id'] , '_price', true);
			} else {
				$price = get_post_meta($item['product_id'] , '_price', true);
			}
		?>
		{ id: "<?php echo 'woocommerce_gpf_'.$item["product_id"]; ?>", price: <?php echo $price; ?>, quantity: <?php echo $item["qty"]; ?> },
		<?php 
		} ?>]}
	);
	</script>
    
<?php
}
?>