<?php
/**
 * Expiration handler for orders.
 *
 * @package AfriDirect_Payment
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Expiration handler class.
 */
class AfriDirect_Payment_Expiration_Handler {

	/**
	 * Plugin instance.
	 *
	 * @var AfriDirect_Payment_Expiration_Handler
	 */
	private static $instance = null;

	/**
	 * Get plugin instance.
	 *
	 * @return AfriDirect_Payment_Expiration_Handler
	 */
	public static function instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	private function __construct() {
		$this->init_hooks();
	}

	/**
	 * Initialize hooks.
	 */
	private function init_hooks() {
		add_action( 'afridirect_payment_check_expired_orders', array( $this, 'check_expired_orders' ) );
	}

	/**
	 * Check and expire orders that have passed their deadline.
	 */
	public function check_expired_orders() {
		// Only query orders that are still pending or have proof uploaded.
		$orders = wc_get_orders(
			array(
				'status'        => array( 'adp-pending', 'adp-proof' ),
				'payment_method' => 'afridirect_payment',
				'limit'          => 100, // Process in batches for efficiency.
				'return'         => 'ids',
				// No non-meta way to find orders by their expiry timestamp; this
				// runs at most every 5 minutes on a small, limited-to-100 batch.
				// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
				'meta_query'      => array(
					array(
						'key'     => '_afridirect_expires_at',
						'value'   => time(),
						'compare' => '<',
						'type'    => 'NUMERIC',
					),
				),
			)
		);

		if ( empty( $orders ) ) {
			return;
		}

		$current_time = time();
		$expired_count = 0;

		foreach ( $orders as $order_id ) {
			$order = wc_get_order( $order_id );
			if ( ! $order ) {
				continue;
			}

			// Double-check expiration time.
			$expires_at = $order->get_meta( '_afridirect_expires_at' );
			$order_status = $order->get_status();

			// Only expire if still in pending or proof status and expired.
			if ( $expires_at && $current_time > $expires_at && in_array( $order_status, array( 'adp-pending', 'adp-proof' ), true ) ) {
				// update_status() already fires woocommerce_order_status_adp-expired,
				// which the email handler is hooked to; no manual do_action needed.
				$order->update_status( 'adp-expired', __( 'Payment deadline expired.', 'afridirect-payment' ) );
				$expired_count++;
			}
		}
	}
}