#!/usr/bin/perl

# infobot -- copyright kevin lenzo (c) 1997-infinity
# no warrantee expressed or implied. terms as the 
# license for X11R6 when needed.

use strict;
use vars qw($infobot_base_dir $infobot_src_dir $infobot_misc_dir
	    $infobot_pid $memusage %param
);

BEGIN {
    # set this to the absolute path if you need it; especially
    # if . is not in your path

    $infobot_base_dir	= '.';
    $infobot_src_dir	= "$infobot_base_dir/src";
    $infobot_misc_dir	= "$infobot_base_dir/files";
    $infobot_pid	= $$;

    require "$infobot_src_dir/logger.pl";
    require "$infobot_src_dir/core.pl";
    require "$infobot_src_dir/interface.pl";
    require "$infobot_src_dir/modules.pl";

    # load the configuration (params) file.
    &setupConfig();

    &showProc();	# to get the first value.
    &status("Initial memory usage: $memusage kB");
    &loadCoreModules();
    &loadDBModules();
    &loadFactoidsModules();
    &loadIRCModules();

    &status("Memory usage after loading modules: $memusage kB");
}

# prevent duplicate processes of the same bot
&duperuncheck();

# initialize everything 
&startup();	# first time initialization.
&setup();

if (!&IsParam("Interface") or $param{'Interface'} =~ /IRC/) {
    # launch the irc event loop
    &ircloop();
} else {
    &cliloop();
}

exit 0;  # just so you don't look farther down in this file :)

# --- support routines

# FIXME.
#   add arguments, basically '-h' and '--help', heh.
#

# added by the xk
sub duperuncheck {
    my $pid	= $$;
    my $file	= $file{PID};

    if ( -f $file) {
	open(PIDFILE,$file) or die "error: cannot open $file.";
	my $thispid = <PIDFILE> || "NULL\n";
	close PIDFILE;
	chop $thispid;

	if ($thispid =~ /^\D$/) {
	    &staus("warning: pidfile is invalid; wiping out.");
	} else {
	    if ( -d "/proc/$thispid/") {
		&ERROR("bot is already running from this directory.");
		&ERROR("if this is incorrect, erase '*.pid'.");
		&ERROR("verify with 'ps -axu | grep $thispid'.");
		exit 1;
	    } else {
		&status("warning: stale $file found; wiping.");
	    }
	}
    }

    open(PIDFILE,">$file") or die "error: cannot write to $file.";
    print PIDFILE "$pid\n";
    close PIDFILE;

    return 0;
}

1;