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package installer::windows::strip;

use File::Temp qw(tmpnam);
use installer::converter;
use installer::existence;
use installer::globals;
use installer::logger;
use installer::pathanalyzer;
use installer::systemactions;

#####################################################################
# Checking whether a file has to be stripped
#####################################################################

sub need_to_strip
{
	my ( $filename ) = @_;
	
	my $strip = 0;
	
	# Check using the "nm" command

	$filename =~ s/\\/\\\\/g;

	open (FILE, "nm $filename 2>&1 |");
	my $nmoutput = <FILE>;
	close (FILE);

	if ( $nmoutput && !( $nmoutput =~ /no symbols/i || $nmoutput =~ /not recognized/i )) { $strip = 1; }

	return $strip		
}

#####################################################################
# Checking whether a file has to be stripped
#####################################################################

sub do_strip
{
	my ( $filename ) = @_;
	
	my $systemcall = "strip" . " " . $filename;
	
	my $returnvalue = system($systemcall);

    $installer::logger::Lang->printf("Systemcall: %s\n", $systemcall);
		
	if ($returnvalue)
	{
        $installer::logger::Lang->printf("ERROR: Could not strip %s!\n", $filename);
	}
	else
	{
        $installer::logger::Lang->printf("SUCCESS: Stripped library %s!\n", $filename);
	}
}

#####################################################################
# Resolving all variables in the packagename.
#####################################################################

sub strip_binaries
{
	my ( $filelist, $languagestringref ) = @_;

	installer::logger::include_header_into_logfile("Stripping files:");

	my $strippeddirbase = installer::systemactions::create_directories("stripped", $languagestringref);

	if (! installer::existence::exists_in_array($strippeddirbase, \@installer::globals::removedirs))
	{
		push(@installer::globals::removedirs, $strippeddirbase);		
	}

	my ($tmpfilehandle, $tmpfilename) = tmpnam();
	open SOURCEPATHLIST, ">$tmpfilename" or die "oops...\n";
	for ( my $i = 0; $i <= $#{$filelist}; $i++ )
	{
		print SOURCEPATHLIST "${$filelist}[$i]->{'sourcepath'}\n";
	}
	close SOURCEPATHLIST;
	my @filetypelist = qx{file -f "$tmpfilename"};
	chomp @filetypelist;
	unlink "$tmpfilename" or die "oops\n";
	for ( my $i = 0; $i <= $#{$filelist}; $i++ )
	{
		${$filelist}[$i]->{'is_executable'} = ( $filetypelist[$i] =~ /:.*PE executable/ );
	}	

	if ( $^O =~ /cygwin/i ) { installer::worker::generate_cygwin_pathes($filelist); }

	for ( my $i = 0; $i <= $#{$filelist}; $i++ )
	{
		my $sourcefilename = ${$filelist}[$i]->{'cyg_sourcepath'};

		if ( ${$filelist}[$i]->{'is_executable'} && need_to_strip($sourcefilename) )
		{
			my $shortfilename = $sourcefilename;
			installer::pathanalyzer::make_absolute_filename_to_relative_filename(\$shortfilename);

            $installer::logger::Lang->printf("Strip: %s\n", $shortfilename);

			# copy file into directory for stripped libraries

			my $onelanguage = ${$filelist}[$i]->{'specificlanguage'};
	
			# files without language into directory "00"
			
			if ($onelanguage eq "") { $onelanguage = "00"; }
			
			my $strippeddir = $strippeddirbase . $installer::globals::separator . $onelanguage;
			installer::systemactions::create_directory($strippeddir);	# creating language specific subdirectories

			my $destfilename = $strippeddir . $installer::globals::separator . $shortfilename;
			installer::systemactions::copy_one_file($sourcefilename, $destfilename);

			# change sourcepath in files collector

			${$filelist}[$i]->{'sourcepath'} = $destfilename;

			# strip file
			
			do_strip($destfilename);
		}
	}
}

1;