# certbot::nginx
class certbot::nginx (
  Stdlib::Absolutepath  $data_root = $certbot::data_root,
  Stdlib::Fqdn          $nginx_vhost = $certbot::nginx_vhost,
  Array[Stdlib::Host]   $nginx_aliases = $certbot::nginx_aliases,
  Stdlib::Port          $nginx_port = $certbot::nginx_port,
  Stdlib::Port          $nginx_ssl_port = $certbot::nginx_ssl_port,
  Enum['http','https','both'] $nginx_listen_mode = $certbot::nginx_listen_mode,
  Enum['puppet', 'vault']     $nginx_cert_type = $certbot::nginx_cert_type,
) {

  # select the certificates to use based on cert type
  case $nginx_cert_type {
    'puppet': {
      $selected_ssl_cert = "/etc/pki/tls/puppet/${facts['networking']['fqdn']}.crt"
      $selected_ssl_key  = "/etc/pki/tls/puppet/${facts['networking']['fqdn']}.key"
    }
    'vault': {
      $selected_ssl_cert = '/etc/pki/tls/vault/certificate.crt'
      $selected_ssl_key  = '/etc/pki/tls/vault/private.key'
    }
    default: {
      # enum param prevents this ever being reached
    }
  }

  # set variables based on the listen_mode
  case $nginx_listen_mode {
    'http': {
      $enable_ssl = false
      $ssl_cert = undef
      $ssl_key = undef
      $listen_port = $nginx_port
      $listen_ssl_port = undef
      $extras_hash = {}
    }
    'https': {
      $enable_ssl = true
      $ssl_cert = $selected_ssl_cert
      $ssl_key = $selected_ssl_key
      $listen_port = $nginx_ssl_port
      $listen_ssl_port = $nginx_ssl_port
      $extras_hash = {
        'subscribe' => [File[$ssl_cert], File[$ssl_key]],
      }
    }
    'both': {
      $enable_ssl = true
      $ssl_cert = $selected_ssl_cert
      $ssl_key = $selected_ssl_key
      $listen_port = $nginx_port
      $listen_ssl_port = $nginx_ssl_port
      $extras_hash = {
        'subscribe' => [File[$ssl_cert], File[$ssl_key]],
      }
    }
    default: {
      # enum param prevents this ever being reached
    }
  }

  mkdir::p {"${data_root}/pub":}

  # set the server_names
  $server_names = unique([$facts['networking']['fqdn'], $nginx_vhost] + $nginx_aliases)

  # define the default parameters for the nginx server
  $defaults = {
    'listen_port'          => $listen_port,
    'server_name'          => $server_names,
    'use_default_location' => true,
    'access_log'           => "/var/log/nginx/${nginx_vhost}_access.log",
    'error_log'            => "/var/log/nginx/${nginx_vhost}_error.log",
    'www_root'             => "${data_root}/pub",
    'autoindex'            => 'on',
    'ssl'                  => $enable_ssl,
    'ssl_cert'             => $ssl_cert,
    'ssl_key'              => $ssl_key,
    'ssl_port'             => $listen_ssl_port,
  }

  # merge the hashes conditionally
  $nginx_parameters = merge($defaults, $extras_hash)

  # manage the nginx class
  include nginx

  # create the nginx vhost with the merged parameters
  create_resources('nginx::resource::server', { $nginx_vhost => $nginx_parameters })

}