<?
if (!empty($_GET['userid']) && is_number($_GET['userid'])) {
	$UserID = $_GET['userid'];
} else {
	error(0);
}

if (!check_perms('zip_downloader')) {
	error(403);
}

$User = Users::user_info($UserID);
$Perms = Permissions::get_permissions($User['PermissionID']);
$UserClass = $Perms['Class'];

require(SERVER_ROOT.'/classes/class_torrent.php');
require(SERVER_ROOT.'/classes/class_zip.php');

if (empty($_GET['type'])) {
	error(0);
} else {
	
	switch ($_GET['type']) {
		case 'uploads':
			if (!check_paranoia('uploads', $User['Paranoia'], $UserClass, $UserID)) {
				error(403);
			}
			$SQL = "WHERE t.UserID='$UserID'";
			$Month = "t.Time";
			break;
		case 'snatches':
			if (!check_paranoia('snatched', $User['Paranoia'], $UserClass, $UserID)) {
				error(403);
			}
			$SQL = "JOIN xbt_snatched AS x ON t.ID=x.fid WHERE x.uid='$UserID'";
			$Month = "FROM_UNIXTIME(x.tstamp)";
			break;
		case 'seeding':
			if (!check_paranoia('seeding', $User['Paranoia'], $UserClass, $UserID)) {
				error(403);
			}
			$SQL = "JOIN xbt_files_users AS xfu ON t.ID = xfu.fid WHERE xfu.uid='$UserID' AND xfu.remaining = 0";
			$Month = "FROM_UNIXTIME(xfu.mtime)";
			break;
		default:
			error(0);
	}
}

ZIP::unlimit();

$DB->query("SELECT 
	t.ID,
	DATE_FORMAT(".$Month.",'%Y - %m') AS Month,
	t.GroupID,
	t.Media,
	t.Format,
	t.Encoding,
	IF(t.RemasterYear=0,tg.Year,t.RemasterYear),
	tg.Name,
	t.Size
	FROM torrents as t 
	JOIN torrents_group AS tg ON t.GroupID=tg.ID 
	".$SQL."
	GROUP BY t.ID");
$Downloads = $DB->to_array(0, MYSQLI_NUM, false);
$Artists = Artists::get_artists($DB->collect('GroupID'));

if (!empty($Downloads)) {
	$DB->query("SELECT TorrentID, File FROM torrents_files WHERE TorrentID IN (".implode(',', array_keys($Downloads)).")");
	$TorrentFiles = $DB->to_array(0, MYSQLI_NUM, false);
}
list($UserID, $Username) = array_values(Users::user_info($UserID));
$Zip = new ZIP($Username.'\'s '.ucfirst($_GET['type']));
foreach ($Downloads as $Download) {
	list($TorrentID, $Month, $GroupID, $Media, $Format, $Encoding, $Year, $Album, $Size) = $Download;
	if (!isset($TorrentFiles[$TorrentID])) {
		continue;
	}
	$Artist = Artists::display_artists($Artists[$GroupID],false,true,false);
	$Contents = unserialize(base64_decode($TorrentFiles[$TorrentID][1]));
	$Tor = new TORRENT($Contents, true);
	$Tor->set_announce_url(ANNOUNCE_URL.'/'.$LoggedUser['torrent_pass'].'/announce');
	unset($Tor->Val['announce-list']);

	$TorrentName = '';
	$TorrentInfo = '';
	$TorrentName = $Artist;
	$TorrentName .= $Album;

	if ($Year > 0) {
		$TorrentName .= ' - '.$Year;
	}

	if ($Media != '') {
		$TorrentInfo .= $Media;
	}

	if ($Format != '') {
		if ($TorrentInfo != '') {
			$TorrentInfo .= ' - ';
		}
		$TorrentInfo .= $Format;
	}

	if ($Encoding!='') {
		if ($TorrentInfo != '') {
			$TorrentInfo .= ' - ';
		}
		$TorrentInfo .= $Encoding;
	}

	if ($TorrentInfo != '') {
		$TorrentName .= ' ('.$TorrentInfo.')';
	}

	if (!$TorrentName) {
		$TorrentName = "No Name";
	}

	$FileName = Misc::file_string($TorrentName);
	if ($Browser == 'Internet Explorer') {
		$FileName = urlencode($FileName);
	}
	$FileName .= '.torrent';
	$Zip->add_file($Tor->enc(), Misc::file_string($Month).'/'.$FileName);
}
$Zip->close_stream();

define('IE_WORKAROUND_NO_CACHE_HEADERS', 1);