<?php
namespace Misuzu;

$indexMode = !empty($_GET['m']) && is_string($_GET['m']) ? (string)$_GET['m'] : '';
$forumId = !empty($_GET['f']) && is_string($_GET['f']) ? (int)$_GET['f'] : 0;

$currentUser = $msz->getActiveUser();
$currentUserId = $currentUser === null ? '0' : $currentUser->getId();

switch($indexMode) {
    case 'mark':
        if(!$msz->isLoggedIn()) {
            echo render_error(403);
            break;
        }

        if($_SERVER['REQUEST_METHOD'] === 'POST' && CSRF::validateRequest()) {
            forum_mark_read($forumId, (int)$msz->getAuthInfo()->getUserId());
            $redirect = url($forumId ? 'forum-category' : 'forum-index', ['forum' => $forumId]);
            redirect($redirect);
            break;
        }

        Template::render('confirm', [
            'title' => 'Mark forum as read',
            'message' => 'Are you sure you want to mark ' . ($forumId === 0 ? 'the entire' : 'this') . ' forum as read?',
            'return' => url($forumId ? 'forum-category' : 'forum-index', ['forum' => $forumId]),
            'params' => [
                'forum' => $forumId,
            ]
        ]);
        break;

    default:
        $categories = forum_get_root_categories($currentUserId);
        $blankForum = count($categories) < 1;

        foreach($categories as $key => $category) {
            $categories[$key]['forum_subforums'] = forum_get_children($category['forum_id'], $currentUserId);

            foreach($categories[$key]['forum_subforums'] as $skey => $sub) {
                if(!forum_may_have_children($sub['forum_type'])) {
                    continue;
                }

                $categories[$key]['forum_subforums'][$skey]['forum_subforums']
                    = forum_get_children($sub['forum_id'], $currentUserId);
            }
        }

        Template::render('forum.index', [
            'forum_categories' => $categories,
            'forum_empty' => $blankForum,
            'forum_show_mark_as_read' => $currentUser !== null,
        ]);
        break;
}