require 'puppet/indirector/face'
require 'puppet/node/facts'

Puppet::Indirector::Face.define(:facts, '0.0.1') do
  copyright "Puppet Labs", 2011
  license   "Apache 2 license; see COPYING"

  summary "Retrieve and store facts."
  description <<-'EOT'
    This subcommand manages facts, which are collections of normalized system
    information used by Puppet. It can read facts directly from the local system
    (with the default `facter` terminus), look up facts reported by other
    systems, and submit facts to the puppet master.

    When used with the `rest` terminus, this subcommand is essentially a front-end
    to the inventory service REST API. See the inventory service documentation at
    <http://docs.puppetlabs.com/guides/inventory_service.html> for more detail.
  EOT

  find = get_action(:find)
  find.summary "Retrieve a node's facts."
  find.arguments "<node_certname>"
  find.returns <<-'EOT'
    A hash containing some metadata and (under the "values" key) the set
    of facts for the requested node. When used from the Ruby API: A
    Puppet::Node::Facts object.

    RENDERING ISSUES: Facts cannot currently be rendered as a string; use yaml
    or json.
  EOT
  find.notes <<-'EOT'
    When using the `facter` terminus, the host argument is ignored.
  EOT
  find.examples <<-'EOT'
    Get facts from the local system:

    $ puppet facts find x

    Ask the puppet master for facts for an arbitrary node:

    $ puppet facts find somenode.puppetlabs.lan --terminus rest

    Query a DB-backed inventory directly (bypassing the REST API):

    $ puppet facts find somenode.puppetlabs.lan --terminus inventory_active_record --run_mode master
  EOT

  get_action(:destroy).summary "Invalid for this subcommand."
  get_action(:search).summary "Invalid for this subcommand."

  action(:upload) do
    summary "Upload local facts to the puppet master."
    description <<-'EOT'
      Reads facts from the local system using the `facter` terminus, then
      saves the returned facts using the rest terminus.
    EOT
    returns "Nothing."
    notes <<-'EOT'
      This action requires that the puppet master's `auth.conf` file
      allow save access to the `facts` REST terminus. Puppet agent does
      not use this facility, and it is turned off by default. See
      <http://docs.puppetlabs.com/guides/rest_auth_conf.html> for more details.
    EOT
    examples <<-'EOT'
      Upload facts:

      $ puppet facts upload
    EOT

    render_as :yaml

    when_invoked do |options|
      Puppet::Node::Facts.indirection.terminus_class = :facter
      facts = Puppet::Node::Facts.indirection.find(Puppet[:certname])
      Puppet::Node::Facts.indirection.terminus_class = :rest
      Puppet::Node::Facts.indirection.save(facts)
      Puppet.notice "Uploaded facts for '#{Puppet[:certname]}'"
      nil
    end
  end
end