<?php

/**
 * The class which handles Twig cache rescan process.
 *
 * @author     Time.ly Network Inc.
 * @since      2.0
 *
 * @package    AI1EC
 * @subpackage AI1EC.Twig
 */
class Ai1ec_Twig_Cache extends Ai1ec_Base {

    /**
     * Rescan cache for writable directory.
     *
     * @return void
     */
    public function rescan() {
        $cache_dir = $this->_registry->get( 'theme.loader' )
                ->get_cache_dir( true );
        $render_json    = $this->_registry->get(
                'http.response.render.strategy.json'
        );
        $output['data'] = array(
            'state' => (int)(false !== $cache_dir),
        );
        $render_json->render( $output );
    }

    /**
     * Sets Twig cache as unavailable and notifies admin.
     *
     * @param string $cache_dir Cache dir.
     *
     * @throws Ai1ec_Bootstrap_Exception
     */
    public function set_unavailable( $cache_dir = AI1EC_TWIG_CACHE_PATH ) {
        $this->_registry->get( 'model.settings' )
            ->set( 'twig_cache', AI1EC_CACHE_UNAVAILABLE );
    }

}