package Daemon;
use strict;

sub new {
    shift;
    my $self = bless {};
    
    ($self->{'path'}, $self->{'pidfile'}, $self->{'init_script'}) = @_;
    
    return $self;
}

sub version {
    my $self = shift;
    
    my $version = `$self->{'path'} -v`;
    if ($version =~ /version\s+([\d\.\-]+)/) {
        return $1;
    }
}

sub __pid {
    my $self = shift;
    
    open PID, $self->{'pidfile'} || return 0;
    my $pid = <PID>;
    close PID;
    return $pid;
}

sub status {
    my $self = shift;
    
    my $pid = $self->__pid();
    
    if ($pid && kill(0, $pid)) {
        return 1;
    } else {
        unlink($self->{'pidfile'});
        return 0;
    }
}

sub start {
    my $self = shift;
    
    return (1, _('Daemon is already running')) if $self->status();
    
    warn(`$self->{'init_script'} start`);

    my $res;
    if ($?) {
        $res = 'Error starting: '.$?;
    }
    return ($self->status(), $res);
}

sub stop {
    my $self = shift;
    
    return (0, _('Daemon is not running')) unless $self->status();
    
    warn(`$self->{'init_script'} stop`);
    
    my $res;
    if ($?) {
        $res = 'Error stopping: '.$?;
    }
    return ($self->status(), $res);
}

sub hup {
    my $self = shift;
    
    return $self->status() if kill('HUP', $self->__pid());
}

1;