<?
/*------------------------------------------------------------------------------

    Copyright (c) 2004 Media Development Loan Fund
 
    This file is part of the LiveSupport project.
    http://livesupport.campware.org/
    To report bugs, send an e-mail to bugs@campware.org
 
    LiveSupport is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
  
    LiveSupport is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with LiveSupport; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
    Author   : $Author: tomas $
    Version  : $Revision: 1.2 $
    Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/storageServer/var/AccessRecur.php,v $

------------------------------------------------------------------------------*/

/**
 *  AccessRecur class
 *
 *  Hadles recursive accessPlaylist/releasePlaylist.
 *  Should be &quot;required_once&quot; from LocStor.php only.
 *
 *  It's not documeted yet - excuse me, please - not enough time :(
 */
class AccessRecur{
    function AccessRecur(&$ls, $sessid){
        $this->ls       =& $ls;
        $this->dbc       =& $ls->dbc;
        $this->sessid   = $sessid;
    }
    function accessPlaylist(&$ls, $sessid, $plid, $parent='0'){
        $ppa =& new AccessRecur($ls, $sessid);
        $r = $ls->accessPlaylist($sessid, $plid, FALSE, $parent);
        if(PEAR::isError($r)) return $r;
        $plRes = $r;
        $r =& StoredFile::recallByGunid($ppa->ls, $plid);
        if(PEAR::isError($r)) return $r;
        $ac = $r;
        $r = $ac->md->genPhpArray();
        if(PEAR::isError($r)) return $r;
        $pla = $r;
        $r = $ppa->processPlaylist($pla, $plRes['token']);
        if(PEAR::isError($r)) return $r;
        $plRes['content'] = $r;
        return $plRes;
    }
    function releasePlaylist(&$ls, $sessid, $token){
        $ppa =& new AccessRecur($ls, $sessid);
        $r = $ppa->dbc->getAll("
            SELECT to_hex(token)as token2, to_hex(gunid)as gunid
            FROM {$ppa->ls->accessTable}
            WHERE parent=x'{$token}'::bigint
        ");
        if($ppa->dbc->isError($r)){ return $r; }
        $arr = $r;
        foreach($arr as $i=>$item){
            extract($item);     // token2, gunid
            $r = $ppa->ls->_getType($gunid);
            if($ppa->dbc->isError($r)){ return $r; }
            $ftype = $r;
            # echo "$ftype/$token2\n";
            switch(strtolower($ftype)){
                case"audioclip":
                    $r = $ppa->ls->releaseRawAudioData($ppa->sessid, $token2);
                    if($ppa->dbc->isError($r)){ return $r; }
                    # var_dump($r);
                break;
                case"playlist":
                    $r = $ppa->releasePlaylist($ppa->ls, $ppa->sessid, $token2);
                    if($ppa->dbc->isError($r)){ return $r; }
                    # var_dump($r);
                break;
                default:
            }
        }
        $r = $ppa->ls->releasePlaylist($ppa->sessid, $token, FALSE);
        if($ppa->dbc->isError($r)){ return $r; }
        return TRUE;
    }
    function processPlaylist($pla, $parent){
        $res = array();
        foreach($pla['children'] as $ple){
            switch($ple['elementname']){
                case"playlistElement":
                    $r = $this->processPlEl($ple, $parent);
                    if(PEAR::isError($r)) return $r;
                    // $res = array_merge($res, $r);
                    $res[] = $r;
                break;
                default:
            }
        }
        return $res;
    }
    function processAc($gunid, $parent){
        $r = $this->ls->accessRawAudioData($this->sessid, $gunid, $parent);
        if(PEAR::isError($r)) return $r;
        return $r;
    }
    function processPlEl($ple, $parent='0'){
        foreach($ple['children'] as $ac){
            switch($ac['elementname']){
                case"audioClip":
                    $r = $this->processAc($ac['attrs']['id'], $parent);
                    if(PEAR::isError($r)) return $r;
                    return $r;
                break;
                case"playlist":
#                    if(empty($ac['children'])){
                        $r = $this->accessPlaylist($this->ls, $this->sessid,
                            $ac['attrs']['id'], $parent);
                        if(PEAR::isError($r)){
                            if($r->getCode() != GBERR_NOTF) return $r;
                            else{
                                $r = $this->processPlaylist($ac, $parent);
                                if(PEAR::isError($r)) return $r;
                                $r = array(
                                    'content'   => $r,
                                    'url'       => NULL,
                                    'token'     => NULL,
                                    'chsum'     => NULL,
                                    'size'      => NULL,
                                    'warning'    => 'inline playlist?',
                                );
                            }
                        }
                        return $r;
/*
                    }else{
                        $r = $this->processPlaylist($ac, $parent);
                        if(PEAR::isError($r)) return $r;
                        $res = array(
                            'content'   => $r,
                            'url'       => NULL,
                            'token'     => NULL,
                            'chsum'     => NULL,
                            'size'      => NULL,
                            'warning'    => 'inline playlist',
                        );
                        return $res;
                    }
*/
                break;
                default:
            }
        }
        return array();
    }
}
?>