<?php

/**
 * Redirect for categories and tags.
 *
 * @author     Time.ly Network Inc.
 * @since      2.0
 *
 * @package    AI1EC
 * @subpackage AI1EC.Request
 */
class Ai1ec_Request_Redirect extends Ai1ec_Base {

    /**
     * Checks if current request is direct for Events cats/tags and redirects
     * to filtered calendar.
     *
     * @param WP $wpobj WP object.
     *
     * @return void Method does not return.
     */
    public function handle_categories_and_tags( WP $wpobj ) {
        $cats = Ai1ec_Event_Taxonomy::CATEGORIES;
        $tags = Ai1ec_Event_Taxonomy::TAGS;
        if (
            ! isset( $wpobj->query_vars ) || (
                ! isset( $wpobj->query_vars[$cats] ) &&
                ! isset( $wpobj->query_vars[$tags] )
            )
        ) {
            return;
        }
        $is_cat = isset( $wpobj->query_vars[$cats] );
        $is_tag = isset( $wpobj->query_vars[$tags] );
        if ( $is_cat ) {
            $query_ident = $cats;
            $url_ident   = 'cat_ids';
        }
        if ( $is_tag ) {
            $query_ident = $tags;
            $url_ident   = 'tag_ids';
        }
        $term = get_term_by(
            'slug',
            $wpobj->query_vars[$query_ident],
            $query_ident
        );
        if ( ! $term ) {
            return;
        }
        $href = $this->_registry->get(
            'html.element.href',
            array( $url_ident => $term->term_id )
        );
        return Ai1ec_Http_Response_Helper::redirect(
            $href->generate_href(),
            301
        );
    }
}