define nagios::service (
  $ensure = present,
  $host_name = $::fqdn,
  $check_command = 'absent',
  $check_period = '',
  $normal_check_interval = '',
  $retry_check_interval = '',
  $max_check_attempts = '',
  $notification_interval = '',
  $notification_period = '',
  $notification_options = '',
  $contact_groups = '',
  $use = 'generic-service',
  $service_description = 'absent',
  $use_nrpe = false,
  $nrpe_args = '',
  $nrpe_timeout = 10
) {

  # TODO: this resource should normally accept all nagios_host parameters

  $real_name = "${::hostname}_${name}"

  @@nagios_service { "${real_name}":
    ensure => $ensure,
    notify => Service[nagios];
  }

  if $ensure != 'absent' {
    if $check_command == 'absent' {
      fail("Must pass a check_command to ${name} if it should be present")
    }
    if $use_nrpe == true {
      include nagios::command::nrpe_timeout

      if ($nrpe_args != '') {
        $real_check_command = "check_nrpe_timeout!$nrpe_timeout!$check_command!\"$nrpe_args\""
      } 
      else {
        $real_check_command = "check_nrpe_1arg_timeout!$nrpe_timeout!$check_command"
      }
    } 
    else {
      $real_check_command = "$check_command"
    }

    Nagios_service["${real_name}"] {
      check_command => $real_check_command,
      host_name => $host_name,
      use => $use,
      service_description => $service_description ?{
        'absent' => $name,
        default => $service_description
      }
    }

    if ($check_period != '') {
      Nagios_service["${real_name}"] { check_period => $check_period }
    }
  
    if ($normal_check_interval != '') {
      Nagios_service["${real_name}"] { normal_check_interval => $normal_check_interval }
    }
  
    if ($retry_check_interval != '') {
      Nagios_service["${real_name}"] { retry_check_interval => $retry_check_interval }
    }
  
    if ($max_check_attempts != '') {
      Nagios_service["${real_name}"] { max_check_attempts => $max_check_attempts }
    }
  
    if ($notification_interval != '') {
      Nagios_service["${real_name}"] { notification_interval => $notification_interval }
    }
  
    if ($notification_period != '') {
      Nagios_service["${real_name}"] { notification_period => $notification_period }
    }
  
    if ($notification_options != '') {
      Nagios_service["${real_name}"] { notification_options => $notification_options }
    }
  
    if ($contact_groups != '') {
      Nagios_service["${real_name}"] { contact_groups => $contact_groups }
    }
  }
}