initial

wp-content/plugins/jetpack-boost/app/modules/optimizations/cloud-css/class-cloud-css-followup.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Automattic\Jetpack_Boost\Modules\Optimizations\Cloud_CSS;
+
+use Automattic\Jetpack_Boost\Lib\Critical_CSS\Critical_CSS_State;
+
+class Cloud_CSS_Followup {
+
+	const SCHEDULER_HOOK = 'jetpack_boost_cloud_css_followup';
+
+	/**
+	 * Initiate the scheduler
+	 *
+	 * Whenever Cloud CSS module is setup, it will call this method.
+	 *
+	 * @return void
+	 */
+	public static function init() {
+		/*
+		 * Run the scheduled job
+		 */
+		add_action( self::SCHEDULER_HOOK, array( self::class, 'run' ) );
+	}
+
+	/**
+	 * Run the cron job.
+	 */
+	public static function run() {
+		$state = new Critical_CSS_State();
+		if ( $state->has_errors() ) {
+			$cloud_css = new Cloud_CSS();
+			$cloud_css->regenerate_cloud_css( Cloud_CSS::REGENERATE_REASON_FOLLOWUP, $cloud_css->get_existing_sources() );
+		}
+	}
+
+	/**
+	 * Add a cron-job to maintain cloud CSS
+	 *
+	 * @return void
+	 */
+	public static function schedule() {
+		// Remove any existing schedule
+		self::unschedule();
+		wp_schedule_single_event( time() + HOUR_IN_SECONDS, self::SCHEDULER_HOOK );
+	}
+
+	/**
+	 * Remove the cron-job
+	 */
+	public static function unschedule() {
+		wp_clear_scheduled_hook( self::SCHEDULER_HOOK );
+	}
+}