#!/usr/bin/perl

# infobot  -- copyright kevin lenzo (c) 1997-1999
# blootbot -- copyright david sobon (c) 1999-infinity

use strict;
use vars qw($bot_base_dir $bot_src_dir $bot_misc_dir $bot_state_dir
	    $bot_data_dir $bot_config_dir $bot_log_dir $bot_run_dir
	    $bot_pid $memusage %param
);

BEGIN {
    if (@ARGV and -f $ARGV[0]) {
	# source passed config to allow $bot_*_dir to be set.
	do $ARGV[0];
    }

    # set any $bot_*_dir var's that aren't already set
    $bot_base_dir	||= '.';
    $bot_config_dir	||= 'files/';
    $bot_data_dir	||= 'files/';
    $bot_state_dir	||= 'files/';
    $bot_run_dir	||= '.';
    $bot_src_dir	||= "$bot_base_dir/src";
    $bot_log_dir	||= "$bot_base_dir/log";
    $bot_misc_dir	||= "$bot_base_dir/files";

    $bot_pid		= $$;

    require "$bot_src_dir/logger.pl";
    require "$bot_src_dir/core.pl";
    require "$bot_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;

# vim:ts=4:sw=4:expandtab:tw=80