Easy Digital Downloads: Prevent license expiration notices being sent for licenses linked to refunded payments

gistfile1.txt

<?php declare( strict_types=1 );

/**
 * Easy Digital Downloads will send license expiration notices for any licenses, even if they
 * have been refunded. This is not ideal.
 *
 * This filter will prevent such notices being sent if any payments associated with this
 * license have been refunded.
 *
 * This may not be applicable in cases where you EDD store supports multiple products in
 * the same payment/purchase. There's no way to know whether a (partial-)refund applies
 * to any particular product.
 *
 * However, we test the license status for it being "disabled", as any fully refunded
 * purchase normally sets associated licenses to be disabled.
 *
 * The filter also honours any pre-existing filters by only continuing with processing if
 * the flag to send the email is true.
 */

add_filter( 'edd_sl_send_scheduled_reminder_for_license', function ( $ifSendEmail, $license_id ) {

	if ( $ifSendEmail ) {
		$lic = edd_software_licensing()->get_license( $license_id );

		if ( $lic instanceof \EDD_SL_License && $lic->status == 'disabled' ) {
			foreach ( $lic->payment_ids as $paymentID ) {
				$p = edd_get_payment( $paymentID );
				if ( $p instanceof \EDD_Payment && $p->status === 'refunded' ) {
					$ifSendEmail = false;
					break;
				}
			}
		}
	}

	return $ifSendEmail;
	
}, 10, 2 );