Oxygen Builder Conditions - total weight of all WooCommerce products in cart

if ( function_exists( 'oxygen_vsb_register_condition' ) ) {

	global $oxy_condition_operators;

	oxygen_vsb_register_condition(
		// Condition Name
		'Total Weight of Products in Cart',

		// Values: The array of pre-set values the user can choose from.
		// Set the custom key's value to true to allow users to input custom values.
		array( 
			'options' => array(),
			'custom' => true
		),

		// Operators
		$oxy_condition_operators['int'],
		
		// Callback Function: Name of function that will be used to handle the condition
		'cwpai_condition_total_weight_callback',

		// Condition Category: Default ones are Archive, Author, Other, Post, User
		'WooCommerce'
	);

}

/**
 * Callback function to handle the condition.
 * @param  mixed 	$value    	Input value - in this case, weight of a product entered by the user.
 * @param  string 	$operator 	Comparison operator selected by the user.
 *
 * @return boolean 				true or false.
 */
function cwpai_condition_total_weight_callback( $value, $operator ) {

	$total_weight = 0;

	if ( ! empty( WC()->cart->get_cart() ) ) {
		foreach ( WC()->cart->get_cart() as $cart_item ) {
			$total_weight += $cart_item['data']->get_weight() * $cart_item['quantity'];
		}
	}

	// return the integer value of $value
	$value = intval( $value );

	return oxy_condition_eval_int( $total_weight, $value, $operator );

}