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package par2script::undefine;

use par2script::globals;

##########################################################
# Removing in the script all the gids, that are listed 
# in undefine scp files
##########################################################

sub undefine_gids
{
	my ($parfilecontent) = @_;

	my $item;
	foreach $item ( @par2script::globals::allitems )
	{
		my $unitem = "Un$item";

		for ( my $i = 0; $i <= $#{$parfilecontent}; $i++ )
		{	
			if ( ${$parfilecontent}[$i] =~ /^\s*$unitem\s*(\w+?)\s*$/ )
			{
				my $gid = $1;
				delete($par2script::globals::definitions{$item}->{$gid});
			}
		}
	}
}

##########################################################
# Collecting all subdirectories of a specified directory 
##########################################################

sub collect_children_dirs
{
	my ($gid, $collector) = @_;
	
	my $diritem = "Directory";
	my $parentkey = "ParentID";

	if ( exists($par2script::globals::definitions{$diritem}) )
	{
		my $onedefinition;
				
		foreach $onedefinition (keys %{$par2script::globals::definitions{$diritem}})
		{
			if ( $par2script::globals::definitions{$diritem}->{$onedefinition}->{$parentkey} eq $gid )
			{
				push(@{$collector}, $onedefinition);
				collect_children_dirs($onedefinition, $collector);
			}
		}
	}
}

##########################################################
# Removing in the script complete profiles. 
# This includes the Profile and its ProfileItems.
##########################################################

sub remove_complete_item
{
	my ($item, $parfilecontent) = @_;

	my $removeitem = "Remove$item";
	my $dependentkey = "";
	my $collect_children = 0;
	my @gidcollector = ();
	my @dependentitems = ();

	if ( $item eq "Profile" )
	{
		@dependentitems = ("ProfileItem");
		$dependentkey = "ProfileID";
	}
	elsif ( $item eq "Directory" )
	{
		@dependentitems = ("File", "Shortcut", "Unixlink");
		$dependentkey = "Dir";
		$collect_children = 1;
	}

	for ( my $i = 0; $i <= $#{$parfilecontent}; $i++ )
	{	
		if ( ${$parfilecontent}[$i] =~ /^\s*$removeitem\s*(\w+?)\s*$/ )
		{
			my $onegid = $1;
			push(@gidcollector, $onegid);
			if ( $collect_children ) { collect_children_dirs($onegid, \@gidcollector); }

			my $gid;
			foreach $gid (@gidcollector)
			{
				delete($par2script::globals::definitions{$item}->{$gid});

				# also deleting all dependent items, for example "ProfileItems" whose "ProfileID" is this "Profile"
				my $depitem;
				foreach $depitem ( @dependentitems )
				{
					if ( exists($par2script::globals::definitions{$depitem}) )
					{
						my $onedefinition;				
						foreach $onedefinition (keys %{$par2script::globals::definitions{$depitem}})
						{
							if ( $par2script::globals::definitions{$depitem}->{$onedefinition}->{$dependentkey} eq $gid )
							{
								delete($par2script::globals::definitions{$depitem}->{$onedefinition});
							}
						}
					}
				}
			}
		}
	}
}

1;