<?php
namespace Concrete\Core\File\Service;

class Mime
{

    static $mime_types_and_extensions = array(
        'atom'    => 'application/atom+xml',
        'hqx'     => 'application/mac-binhex40',
        'mathml'  => 'application/mathml+xml',
        'doc'     => 'application/msword',
        'oda'     => 'application/oda',
        'ogx'     => 'application/ogg',
        'pdf'     => 'application/pdf',
        'ps'      => 'application/postscript',
        'rdf'     => 'application/rdf+xml',
        'smil'    => 'application/smil',
        'dxr'     => 'application/x-director',
        'dvi'     => 'application/x-dvi',
        'spl'     => 'application/x-futuresplash',
        'js'      => 'application/x-javascript',
        'latex'   => 'application/x-latex',
        'swf'     => 'application/x-shockwave-flash',
        'sit'     => 'application/x-stuffit',
        'tar'     => 'application/x-tar',
        'tex'     => 'application/x-tex',
        'texinfo' => 'application/x-texinfo',
        'xhtml'   => 'application/xhtml+xml',
        'xsl'     => 'application/xml',
        'dtd'     => 'application/xml-dtd',
        'xslt'    => 'application/xslt+xml',
        'zip'     => 'application/zip',
        'midi'    => 'audio/midi',
        'm4p'     => 'audio/mp4a-latm',
        'mpga'    => 'audio/mpeg',
        'aiff'    => 'audio/x-aiff',
        'm3u'     => 'audio/x-mpegurl',
        'ram'     => 'audio/x-pn-realaudio',
        'wav'     => 'audio/x-wav',
        'ogg'     => 'audio/ogg',
        'oga'     => 'audio/ogg',
        'pdb'     => 'chemical/x-pdb',
        'xyz'     => 'chemical/x-xyz',
        'bmp'     => 'image/bmp',
        'cgm'     => 'image/cgm',
        'gif'     => 'image/gif',
        'ief'     => 'image/ief',
        'jp2'     => 'image/jp2',
        'jpg'     => 'image/jpeg',
        'jpeg'    => 'image/jpeg',
        'pict'    => 'image/pict',
        'png'     => 'image/png',
        'svg'     => 'image/svg+xml',
        'tiff'    => 'image/tiff',
        'djvu'    => 'image/vnd.djvu',
        'wbmp'    => 'image/vnd.wap.wbmp',
        'ras'     => 'image/x-cmu-raster',
        'ico'     => 'image/x-icon',
        'pntg'    => 'image/x-macpaint',
        'pnm'     => 'image/x-portable-anymap',
        'pbm'     => 'image/x-portable-bitmap',
        'pgm'     => 'image/x-portable-graymap',
        'ppm'     => 'image/x-portable-pixmap',
        'qtif'    => 'image/x-quicktime',
        'xbm'     => 'image/x-xbitmap',
        'xpm'     => 'image/x-xpixmap',
        'wrl'     => 'model/vrml',
        'css'     => 'text/css',
        'html'    => 'text/html',
        'txt'     => 'text/plain',
        'rtx'     => 'text/richtext',
        'rtf'     => 'text/rtf',
        'sgml'    => 'text/sgml',
        'mp4'     => 'video/mp4',
        'mpg'     => 'video/mpeg',
        'qt'      => 'video/quicktime',
        'm4v'     => 'video/x-m4v',
        'avi'     => 'video/x-msvideo',
        'ogv'     => 'video/ogg',
        'webm'    => 'video/webm',
        'wmv'     => 'video/x-ms-wmv',
        'mov'     => 'video/quicktime'
    );

    /**
     * Converts a file extension into a mime type
     *
     * @param string $ext
     * @return string|boolean mime type string or false
     */
    public function mimeFromExtension($ext)
    {
        $ext = strtolower($ext);
        if (array_key_exists($ext, self::$mime_types_and_extensions)) {
            return self::$mime_types_and_extensions[$ext];
        }
        return false;
    }

    /**
     * Converts a known mime-type into it's common file extension.
     * Returns the first match from $mime_types_and_extensions
     *
     * @param string $mimeType
     * @return string|boolean extension string or false
     */
    public function mimeToExtension($mimeType)
    {
        $mimeType = strtolower($mimeType);
        $mime = array_search($mimeType, self::$mime_types_and_extensions);
        return $mime;
    }

}