#!/usr/bin/perl

#
# Startup/shutdown script
#

BEGIN{
    $ENV{LD_LIBRARY_PATH} = "../thrucommon/src/.libs/:".$ENV{LD_LIBRARY_PATH};
}

#
# Locations of thrudb services
#
use constant THRUDOC  => {
    name     => "Thrudoc",
    bin      => "../thrudoc/src/thrudoc",
    conf     => "thrudoc.conf",
    pidfile  => "thrudoc.pid"
};

use constant THRUDEX => {
    name     => "Thrudex",
    bin      => "../thrudex/src/thrudex",
    conf     => "thrudex.conf",
    pidfile  => "thrudex.pid"
};


# command
#
my $cmd = shift;


die usage() unless defined $cmd;


if ($cmd eq "start") {

        start(THRUDEX());
        start(THRUDOC());

} elsif ($cmd eq "stop") {

        stop(THRUDEX());
        stop(THRUDOC());

} else {

    die usage();

}

sub stop
{
    my $conf = shift;

    if( ! -f $conf->{pidfile} ){
        print $conf->{name}." not running\n";
        return;
    }

    open(F,$conf->{pidfile}) or die "$!";
    chomp(my $pid = <F>);
    close(F);
    unlink($conf->{pidfile});

    print "$conf->{name} stopped [$pid]\n";

    kill 1, $pid;

}


sub start {

    my $conf = shift;

    die $conf->{bin}." missing" unless -x $conf->{bin};

    #check if running
    if( -f $conf->{pidfile} ){
        open(F,$conf->{pidfile}) or die "crap: $!";
        my $file = <F>;
        close(F);

        print "$conf->{name} already started on: ", $file,"\n";
        return;
    }


    #startup
    my $pid = fork();

    die "fork failed!\n" unless defined $pid;

    if ($pid == 0) {

        my $cmd = $conf->{bin}." -f ".$conf->{conf};

        exec($cmd);

        exit 0;
    }


    #Save pid
    open(F,">$conf->{pidfile}") or die "can't write to $conf->{pidfile}: $!";
    print F $pid, "\n";
    close(F);

    print "$conf->{name} started [$pid]\n";
}



sub usage {
    print "must provide: 'stop' or 'start' arguments\n";

    exit(-1);
}