Extension_NewRelic_AdminNotes.php

<?php
namespace W3TC;

class Extension_NewRelic_AdminNotes {
	/**
	 *
	 *
	 * @param Config  $config
	 * @return string
	 */
	function notifications( $config ) {
		$config_state = Dispatcher::config_state();
		if ( !$config_state->get_boolean( 'newrelic.hide_note_pageload_slow' ) ) {
			$pl = get_option( 'w3tc_nr_frontend_response_time' );

			if ( $pl !== false && $pl>0.3 ) {
				$nr_recommends = array();
				if ( !$config->get_boolean( 'pgcache.enabled' ) )
					$nr_recommends[] = __( 'Page Cache', 'w3-total-cache' );
				if ( !$config->get_boolean( 'minify.enabled' ) )
					$nr_recommends[] = __( 'Minify', 'w3-total-cache' );
				if ( !$config->get_boolean( 'cdn.enabled' ) )
					$nr_recommends[] = __( 'CDN', 'w3-total-cache' );
				if ( !$config->get_boolean( 'browsercache.enabled' ) )
					$nr_recommends[] = __( 'Browser Cache and use compression', 'w3-total-cache' );

				if ( $nr_recommends ) {
					$message =  sprintf(
						__( 'Application monitoring has detected that your page load time is higher than 300ms. It is recommended that you enable the following features: %s %s',
							'w3-total-cache' ),
						implode( ', ', $nr_recommends ),
						Util_Ui::button_link( 'Hide this message',
							Util_Ui::url( array(
									'w3tc_default_config_state' => 'y',
									'key' => 'newrelic.hide_note_pageload_slow',
									'value' => 'true' ) ) ) );
					return array(
						'newrelic_recommends' => $message
					);
				}
			}
		}

		return array();
	}
}