#!/usr/bin/php5
<?php

/*
    $gallery = $argv[1];
    $album = $argv[2];   // "." means all
    $targetdir = $argv[3];
*/

require_once("/usr/share/gallery/classes/Image.php");
require_once("/usr/share/gallery/classes/AlbumItem.php");
require_once("/usr/share/gallery/classes/Album.php");

ini_set('memory_limit', '192M');

function processGalleryAlbum($gallery, $album, $targetdir, $name="")
{
    $display=0;
    
    $filename = $gallery . '/' . $album . '/' . 'photos.dat'; 
    if (!file_exists($filename)) { print "[ERROR] $filename not found\n"; return 0; }
    $fd = fopen($filename, "r");
    $contents = fread($fd, filesize($filename));
    fclose($fd);
    $data = unserialize($contents);
 
    if (!$name) $name = $album;
    
    $targetdir = $targetdir . '/' . $name;
    if ($display) print "MKDIR $targetdir";
    if (!is_dir($targetdir)) mkdir($targetdir);

    print "[ALBUM] $name ; $album ($filename) \n";
    
    $index = 1;
    foreach($data as $albumitem)
    {
     if ($albumitem->isAlbumName)
     {
        // C'est un sous-album
        $filename = $gallery . '/' . $albumitem->isAlbumName . '/' . 'album.dat'; 
        $fd = fopen($filename, "r");
        $contents = fread($fd, filesize($filename));
        fclose($fd);
        $album_data = unserialize($contents);
        $n = sprintf("%02d %s %s", $index,  ($albumitem->isHidden()!=0)?"#":"-", html_entity_decode($album_data->fields["title"]));
	$n = mb_convert_encoding($n, "UTF-8"); 
        processGalleryAlbum($gallery, $albumitem->isAlbumName, $targetdir, $n);
     }
     elseif (($albumitem->image->name))
     {
        // C'est une image
        if ($albumitem->caption) $n = sprintf("%02d %s %s - %s", $index,  ($albumitem->isHidden()!=0)?"#":"-", $albumitem->image->name, $albumitem->caption);
         else $n = sprintf("%02d - %s", $index, $albumitem->image->name);
        $n = strip_tags($n);
        $n = str_replace('"',"'", $n);
        $n = str_replace(':'," ", $n);
        $n = str_replace('/'," ", $n);
        $n = str_replace('*',"-", $n);
        $n = str_replace('?'," ", $n);
        $n = str_replace("\n"," ", $n);
        $n = str_replace("\r"," ", $n);
        $n = substr($n, 0, 80);
        $n = mb_convert_encoding($n, "UTF-8"); // "ISO-8859-15"
//        $n = eregi_replace ("[^[:alnum:][:space:].,!çéàèëäïöâêîôüù'-*+§_\(\)\[\]{}&²%$=<>]*", " ", sprintf("%02d - %s - %s", $index, $albumitem->image->name, $albumitem->caption));
        if ($display) print "[IMG] " . $album . '/' . $albumitem->image->name . "." . $albumitem->image->type . " -> " . $targetdir . "/" . $n.  "\n";
        $text = $albumitem->caption;
        if (array_key_exists('Description', $albumitem->extraFields))
		if ($albumitem->extraFields['Description'] != '') 
			$text .= "\n\n" . $albumitem->extraFields['Description'];
        // Apply modification
        $in = $gallery . '/' . $album . '/' . $albumitem->image->name . "." . $albumitem->image->type;
        $out = $targetdir . "/" . $n . "." . $albumitem->image->type;
//  With exiftool
            copy($in, $out);
	    if(($text!="") && (!preg_match('/(mov|mpg|avi|wmv)$/i',$out)))
	    {
		    $tmpfname = tempnam("/tmp", "gallery2jpeg");
		    $handle = fopen($tmpfname, "w");
		    fwrite($handle, $text);
		    fclose($handle);
		    exec("exiftool -overwrite_original -Comment\<=$tmpfname \"$out\" ");
		    unlink($tmpfname);
	    }
// ----
      }
     $index++;
    }
}

function main($argc, $argv)
{
    $gallery = $argv[1];
    $album = $argv[2];
    $targetdir = $argv[3];
    if ($album == '.')
    {
        $filename = $gallery . '/' . 'albumdb.dat'; 
        $fd = fopen($filename, "r");
	$contents = fread($fd, filesize($filename));
	fclose($fd);
	$data = unserialize($contents);
	foreach($data as $album)
	{
		$filename = $gallery . '/' . $album . '/' . 'album.dat'; 
		$fd = fopen($filename, "r");
		$contents = fread($fd, filesize($filename));
		fclose($fd);
		$album_data = unserialize($contents);
		if (!$album_data->fields['parentAlbumName'])
		{
			processGalleryAlbum($gallery, $album, $targetdir); 
		}
	}
	     
    }
    else
    {
     processGalleryAlbum($gallery, $album, $targetdir);
     }
}

main($argc, $argv);

?>