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  $log->info("Worker $$ stopped");
}

sub _term {
  my ($self, $graceful) = @_;
  return unless $self->{pid} == $$;
  $self->{stopping}++;
  $self->{graceful} = $graceful or kill 'KILL', keys %{$self->{jobs}};
}

sub _ping {
  shift->register;
}

sub _work {
  my $self = shift;

  my $log    = $self->log;
  my $status = $self->status;

  if ($self->{stopping} && !$self->{quit}++) {
    $log->info("Stopping worker $$ "
        . ($self->{graceful} ? 'gracefully' : 'immediately'));

    # Skip hearbeats, remote command and repairs
    delete @{$status}{qw(heartbeat_interval command_interval )}
      unless $self->{graceful};
    delete $status->{repair_interval};
  }

  # Send heartbeats in regular intervals
  if ($status->{heartbeat_interval} && $self->{next_heartbeat} < steady_time) {
    $log->debug('Sending heartbeat') if TRACE;
    $self->_ping;
    $self->{next_heartbeat} = steady_time + $status->{heartbeat_interval};
  }

  # Process worker remote control commands in regular intervals
  if ($status->{command_interval} && $self->{next_command} < steady_time) {
    $log->debug('Checking remote control') if TRACE;
    $self->process_commands;
    $self->{next_command} = steady_time + $status->{command_interval};
  }

  # Repair in regular intervals
  if ($status->{repair_interval} && $self->{next_repair} < steady_time) {
    $log->debug('Checking worker registry and job queue');
    $self->minion->repair;
    $self->{next_repair} = steady_time + $status->{repair_interval};
  }

  # Check if jobs are finished
  my $jobs = $self->{jobs} ||= {};
  $jobs->{$_}->is_finished and ++$status->{performed} and delete $jobs->{$_}
    for keys %$jobs;

  # Return if worker is finished
  ++$self->{finished} and return if $self->{stopping} && !keys %{$self->{jobs}};

  # Job limit has been reached or worker is stopping
  return $self->emit('busy')
    if ($status->{jobs} <= keys %$jobs) || $self->{stopping};

  # Try to get more jobs
  my ($max, $queues) = @{$status}{qw(dequeue_timeout queues)};
  if (my $job = $self->emit('wait')->dequeue($max => {queues => $queues})) {
    $jobs->{my $id = $job->id} = $job->start;
    my ($pid, $task) = ($job->pid, $job->task);
    $log->debug(qq{Process $pid is performing job "$id" with task "$task"});
  }
}

1;

__END__

=pod

=encoding UTF-8

=head1 NAME

Minion::Worker::Role::Kevin - Alternative Minion worker

=head1 VERSION

version 0.7.1

=head1 AUTHOR

Adriano Ferreira <ferreira@cpan.org>

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2017-2018 by Adriano Ferreira.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut