<?php
/*
 * URL management
 */

namespace Sakura;

class Urls {

    // Unformatted links [0] = no mod_rewrite, [1] = mod_rewrite
    protected $urls = [

        // General site sections
        'SITE_HOME'         => ['/',                        '/'],
        'SITE_NEWS'         => ['/news.php',                '/news'],
        'SITE_NEWS_PAGE'    => ['/news.php?page=%u',        '/news/p%u'],
        'SITE_NEWS_POST'    => ['/news.php?id=%u',          '/news/%u'],
        'SITE_NEWS_RSS'     => ['/news.php?xml=true',       '/news.xml'],
        'SITE_SEARCH'       => ['/search.php',              '/search'],
        'SITE_MEMBERS'      => ['/members.php',             '/members'],
        'SITE_PREMIUM'      => ['/support.php',             '/support'],
        'SITE_FAQ'          => ['/faq.php',                 '/faq'],
        'SITE_LOGIN'        => ['/authenticate.php',        '/login'],
        'SITE_REGISTER'     => ['/authenticate.php',        '/register'],
        'CHANGELOG'         => ['/changelog.php',           '/changelog'],
        'INFO_PAGE'         => ['/index.php?p=%s',          '/p/%s'],
        'AUTH_ACTION'       => ['/authenticate.php',        '/authenticate'],

        // Forums
        'FORUM_INDEX'       => ['/index.php?forum=true',            '/forum'],
        'FORUM_SUB'         => ['/viewforum.php?f=%u',              '/forum/%u'],
        'FORUM_THREAD'      => ['/viewtopic.php?t=%u',              '/forum/thread/%u'],
        'FORUM_POST'        => ['/viewtopic.php?p=%u',              '/forum/post/%u'],
        'FORUM_REPLY'       => ['/posting.php?t=%u',                '/forum/thread/%u/reply'],
        'FORUM_NEW_THREAD'  => ['/posting.php?f=%u',                '/forum/%u/new'],
        'FORUM_EDIT_POST'   => ['/posting.php?p=%1$u&edit=%1$u',    '/forum/post/%u/edit'],
        'FORUM_DELETE_POST' => ['/posting.php?p=%1$u&delete=%1$u',  '/forum/post/%u/delete'],
        'FORUM_QUOTE_POST'  => ['/posting.php?p=%1$u&quote=%1$u',   '/forum/post/%u/quote'],

        // Image serve references
        'IMAGE_AVATAR'      => ['/imageserve.php?m=avatar&u=%u',        '/a/%u'],
        'IMAGE_BACKGROUND'  => ['/imageserve.php?m=background&u=%u',    '/bg/%u'],
        'IMAGE_HEADER'      => ['/imageserve.php?m=header&u=%u',        '/u/%u/header'],

        // User actions
        'USER_LOGOUT'   => ['/authenticate.php?mode=logout&time=%u&session=%s&redirect=%s', '/logout?mode=logout&time=%u&session=%s&redirect=%s'],
        'USER_PROFILE'  => ['/profile.php?u=%s',                                            '/u/%s'],
        'USER_REPORT'   => ['/report.php?mode=user&u=%u',                                   '/u/%u/report'],

        // Settings urls
        'SETTINGS_INDEX'    => ['/settings.php',                        '/settings'],
        'SETTING_CAT'       => ['/settings.php?cat=%s',                 '/settings/%s'],
        'SETTING_MODE'      => ['/settings.php?cat=%s&mode=%s',         '/settings/%s/%s'],
        'MESSAGES_INDEX'    => ['/settings.php?cat=messages',           '/messages'],
        'MESSAGES_MODE'     => ['/settings.php?cat=messages&mode=%s',   '/messages/%s'],

        // Friend Actions
        'FRIEND_ACTION' => ['/settings.php?friend-action=true',                                             '/friends'],
        'FRIEND_ADD'    => ['/settings.php?friend-action=true&add=%u&session=%s&time=%u&redirect=%s',       '/friends?add=%u&session=%s&time=%u&redirect=%s'],
        'FRIEND_REMOVE' => ['/settings.php?friend-action=true&remove=%u&session=%s&time=%u&redirect=%s',    '/friends?remove=%u&session=%s&time=%u&redirect=%s'],

        // Manage urls
        'MANAGE_INDEX'  => ['/manage.php', '/manage']

    ];

    // Get a formatted url
    public function format($id, $args = [], $rewrite = null) {

        // Check if the requested url exists
        if(!array_key_exists($id, $this->urls)) {

            return null;

        }

        // Check if mod_rewrite is enabled
        $rewrite = ($rewrite === null ? Configuration::getConfig('url_rewrite') : $rewrite) ? 1 : 0;

        // Format urls
        $formatted = vsprintf($this->urls[$id][$rewrite], $args);

        // Return the formatted url
        return $formatted;

    }

}