Auto complete Pronamic Pay recurring payments within given period.

pronamic-pay-auto-complete-recurring-payment-within-period.php

<?php
// Add below code to the functions.php file of your WordPress theme and set date range in `$auto_complete_period`.

/**
 * Pronamic Pay auto complete recurring payments within period.
 */
add_filter( 'wp_insert_post_data', 'pronamic_pay_recurring_payment_zero_amount', 9, 2 );

function pronamic_pay_recurring_payment_zero_amount( $data, $postarr ) {
	/*
	 * Auto complete period.
	 *
	 * Recurring payments with a start date in this date range will be completed immediately
	 * (by updating the amount to `0`) without being started at gateway.
	 */
	$auto_complete_period = array(
		'from' => new \DateTime( '2021-08-01 00:00:00' ),
		'to'   => new \DateTime( '2021-08-31 23:59:59' ),
	);

	// Check payment.
	if ( ! array_key_exists( 'pronamic_payment', $postarr ) ) {
		return $data;
	}

	$payment = $postarr['pronamic_payment'];

	// Check if this is a recurring payment.
	if ( 'recurring' !== $payment->get_meta( 'mollie_sequence_type' ) ) {
		return $data;
	}

	// Check payment periods.
	$periods = $payment->get_periods();

	if ( null === $periods ) {
		return $data;
	}

	// Check if period start is within auto complete period.
	$period = reset( $periods );

	$period_start_date = $period->get_start_date();

	if ( $period_start_date < $auto_complete_period['from'] || $period_start_date > $auto_complete_period['to'] ) {
		return $data;
	}

	// Set zero amount, payment will be completed immediately.
	$payment->set_total_amount(
		new \Pronamic\WordPress\Money\TaxedMoney(
			0,
			$payment->get_total_amount()->get_currency()->get_alphabetic_code()
		)
	);

	$payment->set_status( 'Success' );
	
	return $data;
}