<?php
/**
 * Template Functions
 *
 * This file provides template specific custom functions that are
 * not provided by the DokuWiki core.
 * It is common practice to start each function with an underscore
 * to make sure it won't interfere with future core functions.
 */

// must be run from within DokuWiki
if (!defined('DOKU_INC')) die();

/**
 * Create link/button to discussion page and back
 *
 * @author Anika Henke <anika@selfthinker.org>
 */
function _tpl_discussion($discussionPage, $title, $backTitle, $link=0, $wrapper=0) {
    global $ID;

    $discussPage    = str_replace('@ID@', $ID, $discussionPage);
    $discussPageRaw = str_replace('@ID@', '', $discussionPage);
    $isDiscussPage  = strpos($ID, $discussPageRaw) !== false;
    $backID         = str_replace($discussPageRaw, '', $ID);

    if ($wrapper) echo "<$wrapper>";

    if ($isDiscussPage) {
        if ($link)
            tpl_pagelink($backID, $backTitle);
        else
            echo html_btn('back2article', $backID, '', array(), 'get', 0, $backTitle);
    } else {
        if ($link)
            tpl_pagelink($discussPage, $title);
        else
            echo html_btn('discussion', $discussPage, '', array(), 'get', 0, $title);
    }

    if ($wrapper) echo "</$wrapper>";
}

/**
 * Create link/button to user page
 *
 * @author Anika Henke <anika@selfthinker.org>
 */
function _tpl_userpage($userPage, $title, $link=0, $wrapper=0) {
    if (!$_SERVER['REMOTE_USER']) return;

    global $conf;
    $userPage = str_replace('@USER@', $_SERVER['REMOTE_USER'], $userPage);

    if ($wrapper) echo "<$wrapper>";

    if ($link)
        tpl_pagelink($userPage, $title);
    else
        echo html_btn('userpage', $userPage, '', array(), 'get', 0, $title);

    if ($wrapper) echo "</$wrapper>";
}

/**
 * Wrapper around custom template actions
 *
 * @author Anika Henke <anika@selfthinker.org>
 */
function _tpl_action($type, $link=0, $wrapper=0) {
    switch ($type) {
        case 'discussion':
            if (tpl_getConf('discussionPage')) {
                _tpl_discussion(tpl_getConf('discussionPage'), tpl_getLang('discussion'), tpl_getLang('back_to_article'), $link, $wrapper);
            }
            break;
        case 'userpage':
            if (tpl_getConf('userPage')) {
                _tpl_userpage(tpl_getConf('userPage'), tpl_getLang('userpage'), $link, $wrapper);
            }
            break;
    }
}