WP Simple Pay: Add User Meta After Payment

/**

 * @link https://library.wpcode.com/snippet/qo9xxmjo/

 * 

 * @param \Stripe\Event $event Stripe Event.

 * @param \Stripe\Subscription|\Stripe\PaymentIntent $object Stripe Subscription or PaymentIntent

 */

function simpay_update_wp_user( $event, $object ) {

	$email_address = $object->customer->email;

	$wp_user = get_user_by( 'email', $email_address );

	// User cannot be found, do nothing.

	if ( false === $wp_user ) {

		return;

	}

	// Add the Subscription or PaymentIntent ID as User meta.

	update_user_meta( $wp_user->ID, 'txn_id', $object->id );

}

add_action( 'simpay_webhook_subscription_created', 'simpay_update_wp_user', 10, 2 );

add_action( 'simpay_webhook_payment_intent_succeeded', 'simpay_update_wp_user', 10, 2 );