# Module of TWiki Enterprise Collaboration Platform, http://TWiki.org/
#
# Copyright (C) 2005 Sven Dowideit http://www.home.org.au
# Copyright (C) 2004-2006 TWiki Contributors. All Rights Reserved.
# TWiki Contributors
# are listed in the AUTHORS file in the root of this distribution.
# NOTE: Please extend that file, not this notice.
#
# This program 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. For
# more details read LICENSE in the root of this distribution.
#
# This program 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.
#
# As per the GPL, removal of this notice is prohibited.
#
# This will become the Upgrade class - for now its just a few 
# common functions


use strict;

package TWiki::Upgrade;

use File::Copy;

# new(, 
sub new {
	my( $class, $outputDir ) = @_;
    my $this = bless( {}, $class );
    $this->{outputDir} = $outputDir;
    $this->{logFileName} = '/UpgradeTwiki.log';
	return $this;
}

sub writeToLog {
	my $this = shift;
	#TODO: move this stuff into the base upgrade class
	open(UPGRADELOG, '>>'.$this->{outputDir}.$this->{logFileName}) || die "unable to open ".$this->{outputDir}.$this->{logFileName};
	print UPGRADELOG @_;
	close(UPGRADELOG);
}
sub writeToScreen {
	my $this = shift;
	print @_;
}
sub writeToLogAndScreen {
	my $this = shift;
	$this->writeToScreen(@_);
	$this->writeToLog(@_);
}

sub copyInitialFiles {
	my $this = shift;
	my $sourceDir = shift;
		
	$this->writeToLogAndScreen("Creating the ".$this->{outputDir}." directory structure from $sourceDir...\n");
	opendir(HERE , $sourceDir);

	foreach my $file (readdir(HERE)) {
    	next if ($file =~ /^\./);
    	next if ($file =~ /~$/);
		next if ($file =~ /.zip$/);
		next if ($file eq 'twikiplugins');  #lets skip it for speed while testing
		next if ($file eq "data"); # UpgradeTopics will copy the data as appropriate.
	    next if ($file eq "pub"); # UpgradeTopics will copy the data as appropriate.

    	$this->writeToLogAndScreen("$file\n");
    	system("cp -R $file ".$this->{outputDir});
	}
}

1;