<?php
/**
 * WP-Cron functionality.
 *
 * @package TaskBeacon
 */

defined( 'ABSPATH' ) || exit;

/**
 * Handles WordPress scheduled cron events.
 */
class WPTM_Cron {

	/**
	 * Initialize WP-Cron functionality.
	 *
	 * @return void
	 */
	public function init() {
		// Reserved for future WP-Cron monitoring functionality.
	}

	/**
	 * Get scheduled WP-Cron events.
	 *
	 * @return array<int, array<string, string>>
	 */
	public function get_events() {

		$cron_events = _get_cron_array();

		if ( ! is_array( $cron_events ) ) {
			return array();
		}

		$events = array();

		foreach ( $cron_events as $timestamp => $hooks ) {

			if ( ! is_array( $hooks ) ) {
				continue;
			}

			foreach ( $hooks as $hook => $schedules ) {

				if ( ! is_array( $schedules ) ) {
					continue;
				}

				foreach ( $schedules as $schedule ) {

					$recurrence = isset( $schedule['schedule'] )
						? $schedule['schedule']
						: __( 'Once', 'taskbeacon' );

					$events[] = array(
						'hook'      => sanitize_key( $hook ),
						'next_run'  => wp_date(
							get_option( 'date_format' ) . ' ' . get_option( 'time_format' ),
							(int) $timestamp
						),
						'recurrence' => sanitize_text_field( $recurrence ),
					);
				}
			}
		}

		return $events;
	}
}