<?php
/**
 * functions/redirect.php
 *
 * This class is used for header modification and page redirection.
 *
 * @version 1.1
 * @author  Joey Kimsey <Joey@thetempusproject.com>
 * @link    https://TheTempusProject.com/Hermes
 * @license https://opensource.org/licenses/MIT [MIT LICENSE]
 */
namespace TheTempusProject\Hermes\Functions;

class Redirect {
    /**
     * The main redirect function. This will automatically call the
     * error controller if the value passed to it is numerical. It will
     * automatically populate the url based on the config and add the
     * $data string at the end
     *
     * @param string|int $data - The desired redirect location (string for location and integer for error page).
     */
    public static function to( $data ) {
        if ( ! HERMES_REDIRECTS_ENABLED ) {
            return;
        }
        if ( is_numeric( $data ) ) {
            header( 'Location: ' . Route::getAddress() . 'Errors/' . $data );
        }
        $url = Route::getAddress() . $data;
        if ( filter_var( $url, FILTER_VALIDATE_URL ) != false ) {
            header( 'Location: ' . $url );
        }
    }

    public static function home() {
        if ( ! HERMES_REDIRECTS_ENABLED ) {
            return;
        }
        header( 'Location: ' . Route::getAddress() );
    }

    public static function external( $data ) {
        if ( ! HERMES_REDIRECTS_ENABLED ) {
            return;
        }
        $url = filter_var( $data, FILTER_SANITIZE_URL );
        if ( filter_var( $url, FILTER_VALIDATE_URL ) != false ) {
            header( 'Location: ' . $data );
        }
    }

    /**
     * Refreshes the current page.
     *
     * @return null
     */
    public static function reload() {
        if ( ! HERMES_REDIRECTS_ENABLED ) {
            exit();
        }
        header( 'Refresh:0' );
    }
}