application/src/templating.php
<?php

/* Garmonbozia - Creative Commons search.
   Based on GNU FM

   Copyright (C) 2015 Creative Commons
   Copyright (C) 2009 Free Software Foundation, Inc

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Affero General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Affero General Public License for more details.

   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

namespace Garmonbozia;

$root = dirname(dirname(__DIR__));
$themesroot = $root . '/application/themes/';

require_once($root . '/config.php');

function displayError($error_title, $error_message) {
	global $smarty;
	$smarty->assign('pagetitle', $error_title);
	$smarty->assign('error_message', $error_message);
	$smarty->display('error.tpl');
	die();
}

if (isset($_GET['lang'])) {
	$languages = array($_GET['lang'] . '.UTF-8');
 	setcookie('lang', $_GET['lang'] . '.UTF-8', time() + 31536000, '/');
} else if (isset($_COOKIE['lang'])) {
 	$languages = array($_COOKIE['lang']);
} else {
	// Attempt to mangle browser language strings in to valid gettext locales
    // (needs a big lookup table to be 100% accurate)
	$languages = preg_split('/,/', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
	for ($i = 0; $i < count($languages); $i++) {
		$languages[$i] = preg_replace('/;q=\d\.\d/', '', $languages[$i]);
		if (strlen($languages[$i]) == 2) {
			$languages[$i] = $languages[$i] . '_' . strtoupper($languages[$i]);
		} else if (stristr($languages[$i], '-')) {
			$lcomponents = preg_split('/-/', $languages[$i]);
			$languages[$i] = $lcomponents[0] . '_' . strtoupper($lcomponents[1]);
		}

		$languages[$i] = $languages[$i] . '.UTF-8';
	}
}
$current_lang = setlocale(LC_ALL, $languages);

if(isset($_GET['mobile']) && $_GET['mobile']) {
	$theme = 'mobile';
} else {
	$theme = Config::$default_theme;
}

bindtextdomain('garmonbozia', $themesroot . $theme
               . '/locale/');
textdomain('garmonbozia');

$smarty = new \Smarty();

$smarty->setTemplateDir(array(
	$themesroot . $theme . '/templates/',
	$themesroot . 'garmonbozia/templates/'
));
$smarty->setPluginsDir(array(
	SMARTY_DIR . '/plugins/',
	$themesroot . $theme . '/plugins/',
	$themesroot . 'garmonbozia/plugins/'
));
$smarty->setCompileDir($themesroot . $theme
                       . '/templates_c/');
$smarty->setCacheDir($root . '/cache/');
$smarty->setConfigDir(array($themesroot . $theme
                            . '/config/',
                            $themesroot
                            . 'garmonbozia/config/'));

$current_lang = preg_replace('/.UTF-8/', '', $current_lang);
$smarty->assign('lang_selector_array', array(($current_lang) => 1));
$smarty->assign('base_url', Config::$base_url);
$smarty->assign('default_theme', Config::$default_theme);
$smarty->assign('site_name', Config::$site_name);
$smarty->assign('img_url', Config::$base_url . '/themes/' . $theme . '/img/');
$smarty->assign('this_page', $_SERVER['REQUEST_URI']);
$smarty->assign('this_page_absolute',
	  (empty($_SERVER['HTTPS']) ? 'http://' : 'http://')
	. (empty($_SERVER['HOST']) ? $_SERVER['SERVER_NAME'] : $_SERVER['HOST'])
	. (($_SERVER['SERVER_PORT'] == 80) ? '' : (':' . $_SERVER['SERVER_PORT']))
	. $_SERVER['REQUEST_URI']);


if (isset($logged_in) && $logged_in) {
	$smarty->assign('logged_in', true);
	// Pre-fix this user's details with 'this_' to avoid confusion with other users
	$smarty->assign('this_user', $this_user);
}

header('Content-Type: text/html; charset=utf-8');
