package WebGUI::ErrorHandler;

#-------------------------------------------------------------------
# WebGUI is Copyright 2001 Plain Black Software.
#-------------------------------------------------------------------
# Please read the legal notices (docs/legal.txt) and the license
# (docs/license.txt) that came with this distribution before using
# this software.
#-------------------------------------------------------------------
# http://www.plainblack.com                     info@plainblack.com
#-------------------------------------------------------------------

use FileHandle;
use WebGUI::Session;

#-------------------------------------------------------------------
sub fatalError {
        my ($key, $log, $cgi, $logfile, $config);
	if (exists $session{cgi}) {
		$cgi = $session{cgi};
	} else {
		use CGI;
		$cgi = CGI->new;
	}
	print $cgi->header;
	if (exists $session{config}{logfile}) {
		$logfile = $session{config}{logfile};
	} else {
		use Data::Config;
        	$config = new Data::Config '../etc/WebGUI.conf';
		$logfile = $config->param('logfile');
	}
	$log = FileHandle->new(">>$logfile") or die "Can't open log file.";
        print "<h1>WebGUI Fatal Error</h1>Something unexpected happened that caused this system to fault.<p>";
        print $0." at ".localtime(time)." reported:<br>";
	print $log localtime(time)." ".$0." ".$_[0]."\n";
        print $_[0];
        print "<p><h3>Caller</h3><table border=1><tr><td valign=top>";
        print "<b>Level 1</b><br>".join("<br>",caller(1));
	print $log "\t".join(",",caller(1))."\n";
        print "</td><td valign=top>"."<b>Level 2</b><br>".join("<br>",caller(2));
	print $log "\t".join(",",caller(2))."\n";
        print "</td><td valign=top>"."<b>Level 3</b><br>".join("<br>",caller(3));
	print $log "\t".join(",",caller(3))."\n";
        print "</td><td valign=top>"."<b>Level 4</b><br>".join("<br>",caller(4));
	print $log "\t".join(",",caller(4))."\n";
        print "</td></tr></table>";
	print "<h3>Form Variables</h3>";
	print $log "\t";
	if (exists $session{form}) {
        	foreach $key (keys %{$session{form}}) {
                	print $key." = ".$session{form}{$key}."<br>";
                	print $log $key."=".$session{form}{$key}." ";
        	}
		print $log "\n";
	} else {
		print "Cannot retrieve session information.";
		print $log "Session not accessible for form variable dump.\n";
	}
	print $log "\n";
	$log->close;
        exit;
}

#-------------------------------------------------------------------
sub warn {
        my ($log, $logfile, $config);
        if (exists $session{config}{logfile}) {
                $logfile = $session{config}{logfile};
        } else {
                use Data::Config;
                $config = new Data::Config '../etc/WebGUI.conf';
                $logfile = $config->param('logfile');
        }
        $log = FileHandle->new(">>".$logfile) or fatalError("Can't open log file for warning.");
        print $log localtime(time)." ".$0." WARNING: ".$_[0]."\n";
	$log->close;
}

1;