#!/sw/bin/perl5 -w

use strict;

my $TMPDIR;
my $version = "";

sub usage {
    print STDERR "$0: usage\n";
    print STDERR "$0 [-v version] result1.tar[.gz] ...\n";
}

sub make_tempdir()
{
    my $dirno = 1;
    $TMPDIR = "TMP$dirno";
    while ( -f $TMPDIR or -d $TMPDIR ) {
	++$dirno;
	$TMPDIR = "TMP$dirno";
    }
    mkdir($TMPDIR,0770) or die "Cannot create temporary directory $TMPDIR\n";
}

sub reformat_results($)
{
    $_ = shift;
    s/\.tar//;
    my $platform = $_;
    system("dos2unix ${platform}.txt ${platform}.txt");
    open (PLATFORM_RESULTS,"<${platform}.txt") or return;
    while (/^\s*$/) {
	$_= <PLATFORM_RESULTS>;
    }
    open (PLATFORM_INFO,">$platform.info") or return;
    open (PLATFORM_NEW_RESULTS,">${platform}.new_results") or return;
    my ($CGAL_VERSION,$LEDA_VERSION,$TESTER,$GMP,$CLN,$QT) = ("-","-","-","-","-","-");
    while (! /^------/) {
	if (/^CGAL_VERSION\s+([\w\.-]+)/) {
	    $CGAL_VERSION = $1;
	}
	if (/^LEDA\s+version\s+([\w\.-]+)/) {
	    $LEDA_VERSION = $1;
	}
	if (/^TESTER\s+([\w\.-]+)/) {
	    $TESTER = $1;
	}
	if (/GMP_SUPPORT\s*=\s*\'_GMP\'/) {
	    $GMP="+";
	}
	if (/CLN_SUPPORT\s*=\s*\'_CLN\'/) {
	    $CLN="+";
	}
	if (/QT_SUPPORT\s*=\s*\'_QT\'/) {
	    $QT="+";
	}
	if (/LEDA_SUPPORT\s*=\s*\'_LEDA\'/ && $LEDA_VERSION eq "-") {
	    $LEDA_VERSION="+";
	}
	$_= <PLATFORM_RESULTS>;
    }
    while (<PLATFORM_RESULTS>) {
	print PLATFORM_NEW_RESULTS $_;
    }
    rename("${platform}.new_results","${platform}.txt");
    print PLATFORM_INFO <<"EOF";
$CGAL_VERSION
$TESTER
$LEDA_VERSION
$GMP
$CLN
$QT
EOF
    close(PLATFORM_INFO);
    close(PLATFORM_RESULTS);
    close(PLATFORM_NEW_RESULTS);
    if ($version
        && $version ne "CGAL-$CGAL_VERSION"
        && ($version !~ /^CGAL-${CGAL_VERSION}-I-[\d]+$/)) {
	die "Wrong version in $platform: $CGAL_VERSION instead of $version.\n";
    }
}

sub one_archive($)
{
    my $archive = shift;
    if (! -f $archive) {
	print STDERR "$archive is not a valid filename\n";
	return 0;
    }
    if ( $archive =~ m/\.gz$/ ) {
	system("/sw/bin/gunzip", "$archive") == 0 or return 0;
	$archive =~ s/\.gz$//;
    }
    if ( $archive =~ m/.*\.tgz$/ ) {
	system("gunzip", "$archive") == 0 or return 0;
	$archive =~ s/\.tgz$/.tar/;
    }
    if ( $archive !~ /\.tar$/) {
	print STDERR "$0: $archive not a tar file\n";
	return 0;
    }
    make_tempdir();
    rename("$archive","$TMPDIR/$archive") or die;
    chdir("$TMPDIR") or die;
    system("gtar", "xf", "$archive") == 0 or die;
    unlink($archive);

    reformat_results($archive);
    system('gzip',glob("*/*"));
    system('chmod','-R','a+r,og+w','.');
    system('tar', 'cf', "../$archive", glob("*")) == 0 or die;
    chdir('..') or die;
    system('rm', '-rf', "$TMPDIR")== 0 or die;
    return 1;
}

sub all_archives() {
    my $archive;
    foreach $archive (@ARGV) {
	if (one_archive($archive)) {
	    print STDERR "$archive succesfully reformatted.\n";
	} else {
	    print STDERR "Could not reformat $archive\n";
	}
    }
}


if ($#ARGV < 0) {
    usage;
    exit 1;
}

if ($ARGV[0] eq "-v") {
    shift;
    $version = shift;
}

if ($#ARGV < 0) {
    usage;
    exit 1;
}

all_archives();
exit 0;