#!/usr/bin/php5
<?php

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

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;
    
    $photosfilename = $gallery . '/' . $album . '/' . 'photos.dat'; 
    if (!file_exists($photosfilename)) { print "[ERROR] $photosfilename not found\n"; return 0; }
    $fd = fopen($photosfilename, "r");
    $contents = fread($fd, filesize($photosfilename));
    fclose($fd);
    $data = unserialize($contents);
 
    if (!$name) $name = $album;
    
    print "[ALBUM] $name ; $album ($photosfilename) \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, $albumitem->image->name);
        if ($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'];

        $in = $gallery . '/' . $album . '/' . $albumitem->image->name . "." . $albumitem->image->type;
	unset($output);
        exec("exiftool -comment -s -s -s $in",$output);
	$comment = implode("\n",$output);
	//$comment = mb_convert_encoding($comment, "UTF-8"); 
        print "[IMG] " . $albumitem->image->name . " : " . $comment . " \n";
	
	$albumitem->caption = $comment;
      }
     $index++;
    }
    
    print "Save changes in $photosfilename";
    copy($photosfilename,$photosfilename . ".bk");
    $contents = serialize($data);
    $fd = fopen($photosfilename, "w");
    fwrite($fd, $contents);
    fclose($fd);
  
}

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);

?>