package gdbdiff;

BEGIN {
    die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
    die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
    unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
    unshift (@INC, "$ENV{'GSDLHOME'}/perllib/cpan");
}

use util;
use diffutil;
use Text::Diff;

sub readin_gdb
{
    my ($cmd) = @_;

    open(PIN,"$cmd|") 
	|| die "Unable to open pipe to $cmd: $!\n";

    my $text_content = "";

    while (defined (my $line = <PIN>)) {
	$text_content .= $line;
    }

    close(PIN);
    return $text_content;
}


sub test_gdb
{
    my ($full_modeldb, $full_testdb) = @_;


   # print "Now is testing database\n";
    
    my $model_cmd = "db2txt $full_modeldb 2>&1";
    my $test_cmd  = "db2txt $full_testdb 2>&1";

    my $model_text = readin_gdb($model_cmd);
    my $test_text = readin_gdb($test_cmd);
    my $report_type = "OldStyle"; # Can not change this type.
    my $diff_gdb = diff \$model_text, \$test_text, { STYLE => $report_type };
    
    $diff_gdb = &diffutil::GenerateOutput($diff_gdb,"^<(lastmodified|lastmodifieddate|oailastmodified|oailastmodifieddate)>.*");

    if($diff_gdb eq "")
    {
	return "";
    }
    else
    {
	return "Difference Report: Differences found in the Database file: \n$diff_gdb";
    }
    # Call diff?
}

1;