<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

/**
 * Smarty plugin
 * -------------------------------------------------------------
 * Type:     modifier
 * Name:     iconify
 * Purpose:  Returns a filetype icon or file type
 * -------------------------------------------------------------
 *
 * @param $string               File name with extension
 * @param null $filetype        File type
 * @param null $fileId          File id when using file galleries
 * @param int $size             Icon size
 * @param string $return        icon or filtype
 * @return null|string
 * @throws Exception
 * @throws SmartyException
 */
function smarty_modifier_iconify($string, $filetype = null, $fileId = null, $size = 1, $return = 'icon')
{
    $smarty = TikiLib::lib('smarty');
    global $prefs;

    $smarty->loadPlugin('smarty_function_icon');
    $icon = '';
    $ext = strtolower(substr($string, strrpos($string, '.') + 1));
    if ($fileId && substr($filetype, 0, 6) == 'image/') {
        // Special handling for file gallery images,
        // display thumbnail
        $smarty->loadPlugin('smarty_modifier_sefurl');
        $smarty->loadPlugin('smarty_modifier_escape');
        $icon = smarty_modifier_sefurl($fileId, 'thumbnail');
        $icon = smarty_modifier_escape($icon);
        $width = 16 * $size;

        return "<img src=\"$icon\" width=\"$width\"/>";
    } else {
        include_once('lib/mime/mimetypes.php');
        global $mimetypes;
        $mimes = array_keys($mimetypes, $filetype);
        if ($prefs['theme_iconset'] === 'legacy') {
            if (file_exists("img/icons/mime/$ext.png")) {
                $icon = $ext;
            } elseif (file_exists('img/icons/mime/' . substr($ext, 0, 3) . '.png')) {
                $icon = substr($ext, 0, 3);
            } else {
                foreach ($mimes as $m) {
                    if (file_exists("img/icons/mime/$m.png")) {
                        $icon = $m;
                    }
                }
                if (empty($icon)) {
                    $icon = 'default';
                }
            }
            if ($return === 'filetype') {
                return $m;
            } elseif ($return === 'icon') {
                return smarty_function_icon(
                    [
                        '_id' => 'img/icons/mime/' . $icon . '.png',
                        'alt' => ( $filetype === null ? $icon : $filetype ),
                        'class' => '',
                        'size' => $size
                    ],
                    $smarty->getEmptyInternalTemplate()
                );
            }
        //iconsets introduced with Tiki14
        } else {
            if (! empty($filetype)) {
                $type = $filetype;
            } elseif (! empty($mimetypes[$ext])) {
                $type = $mimetypes[$ext];
            } else {
                $type = 'file';
            }
            switch ($type) {
                case $type === 'application/msword'
                    || $type === 'application/vnd.ms-word'
                    || strpos($type, 'application/vnd.openxmlformats-officedocument.wordprocessingml') === 0:
                    $iconname = 'word';
                    break;
                case $type === 'application/pdf':
                    $iconname = 'pdf';
                    break;
                case $type === 'application/vnd.ms-excel'
                    || $type === 'application/ms-excel'
                    || $type === 'application/msexcel'
                    || strpos($type, 'application/vnd.openxmlformats-officedocument.spreadsheetml') === 0
                    || $type === 'application/vnd.oasis.opendocument.spreadsheet':
                    $iconname = 'excel';
                    break;
                case $type === 'application/vnd.ms-powerpoint'
                    || $type === 'application/ms-powerpoint'
                    || $type === 'application/mspowerpoint'
                    || strpos($type, 'application/vnd.openxmlformats-officedocument.presentationml') === 0:
                    $iconname = 'powerpoint';
                    break;
                case strpos($type, 'audio/') === 0:
                    $iconname = 'audio';
                    break;
                case strpos($type, 'image/') === 0:
                    $iconname = 'image';
                    break;
                case strpos($type, 'text/') === 0:
                    switch ($ext) {
                        case 'c':
                        case 'cpp':
                        case 'css':
                        case 'htm':
                        case 'html':
                        case 'java':
                        case 'js':
                        case 'less':
                        case 'php':
                        case 'py':
                        case 'scss':
                            $iconname = 'code_file';
                            break;
                        case 'eml':
                            $iconname = 'envelope';
                            break;
                        default:
                            $iconname = 'textfile';
                    }
                    break;
                case $type === 'application/vnd.oasis.opendocument.text':
                    $iconname = 'textfile';
                    break;
                case strpos($type, 'video/') === 0:
                    $iconname = 'video';
                    break;
                case strpos($type, 'application/') === 0 && strpos($type, 'zip') !== false:
                    $iconname = 'zip';
                    break;
                case strpos($type, 'application/') === 0 &&
                        (strpos($type, 'mail') !== false || $type === 'application/CDFV2-corrupt'):     // outlook mail
                    $iconname = 'envelope';
                    break;
                default:
                    $iconname = 'file';
                    break;
            }
            if ($return === 'filetype') {
                return $type;
            } else {
                return smarty_function_icon(['name' => $iconname, 'size' => $size], $smarty->getEmptyInternalTemplate());
            }
        }
    }
}