<?php
/**
 * Heartbeat scheduler and hook registration.
 *
 * @package AdScaleAI
 */

namespace AdScale\Handlers;

use AdScale\API\API_Manager;
use AdScale\Helpers\Helper;

defined( 'ABSPATH' ) || exit; // Exit if accessed directly.

/**
 * Registers and manages the AdScale heartbeat cron schedule and hook.
 *
 * @since 2.1.19
 */
class Heartbeat {
	/**
	 * Activate the heartbeat cron schedule and hook.
	 *
	 * @return void
	 */
	public static function activate() {
		if ( wp_doing_ajax() ) {
			return;
		}

		$heartbeat_request_tpl = Helper::getConfigSetting( 'heartbeat/request_tpl', '' );
		$heartbeat_interval    = Helper::getConfigSetting( 'heartbeat/interval', '' );

		if ( ! $heartbeat_request_tpl || ! $heartbeat_interval ) {
			return;
		}

		add_filter(
			'cron_schedules',
			function ( $schedules ) use ( $heartbeat_interval ) {
				$schedules['adscale_heartbeat'] = array(
					'interval' => (int) $heartbeat_interval, // Seconds.
					'display'  => 'Plugin AdScale / Heartbeat',
				);

				return $schedules;
			}
		);

		// Cron hook.
		if ( ! wp_next_scheduled( 'adscale_heartbeat_hook' ) ) {
			wp_schedule_event( time(), 'adscale_heartbeat', 'adscale_heartbeat_hook' );
		}

		// Action for hook.
		add_action( 'adscale_heartbeat_hook', array( API_Manager::class, 'process_heartbeat' ) );
	}

	/**
	 * Deactivate the heartbeat schedule and clear the hook.
	 *
	 * @return void
	 */
	public static function deactivate() {
		if ( function_exists( '\wp_unschedule_hook' ) ) {
			\wp_unschedule_hook( 'adscale_heartbeat_hook' );
		} else {
			\wp_clear_scheduled_hook( 'adscale_heartbeat_hook' );
		}
	}
}