#! /usr/local/bin/perl -w
#
# $Id: clean-rss.pl,v 1.1 2003/09/14 20:43:17 bc Exp $
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
# 
# The contents of this file are subject to the Mozilla Public License Version 
# 1.1 (the "License"); you may not use this file except in compliance with 
# the License. You may obtain a copy of the License at 
# http://www.mozilla.org/MPL/
# 
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
# 
# The Original Code is Netscape code.
#
# The Initial Developer of the Original Code is
# Netscape Corporation.
# Portions created by the Initial Developer are Copyright (C) 2001
# the Initial Developer. All Rights Reserved.
#
# Contributor(s): Bob Clary <bclary@netscape.com>
# Contributor(s): Bob Clary <http://bclary.com>
# 
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
# 
# ***** END LICENSE BLOCK *****

use strict;
use XML::LibXML;

my $argsok = 0;
my $argcount = @ARGV;

#print "$argcount\n";

if ($argcount < 2)
{
  print <<USAGE;
  USAGE: clean-rss.pl webroot startdir
USAGE
exit (1);
}

my $webroot = shift;
my $startdir = shift;

my $rssDirectoryFile = $startdir . '/rssdirectory.xml';

if (! -e $rssDirectoryFile)
{
  die "$rssDirectoryFile must exist before attempting to generate the RSS";
}

my $catFile = $startdir . '/catalog.xml';

my $parser = XML::LibXML->new();
my $rssDirectoryDocument = $parser->parse_file($rssDirectoryFile);
my $rssDirectoryDocumentElement = $rssDirectoryDocument->documentElement;

my @channelList = $rssDirectoryDocumentElement->getElementsByTagName('nde:rsschannel')->get_nodelist;

foreach my $channel (@channelList)
{
  my $channelLoc = $channel->getAttribute('loc');
  my $channelId = $channel->getAttribute('channelid');
  my @nodes;

  my $channelDirectory = $channelLoc;

  $channelDirectory =~ s/^$webroot//;
  $channelDirectory = $startdir . '/' . $channelDirectory;
  $channelDirectory =~ s/[\/]+/\//g;
  $channelDirectory =~ s/[\/]$//;

  opendir DIR, $channelDirectory;
  my @filelist = grep /(catalog|rss)-(full|new)_/, map "$channelDirectory/$_", readdir DIR;
  closedir DIR;
  foreach my $file (@filelist)
  {
    unlink $file;
  }
}

unlink $catFile;

exit;