module Berkshelf::Vagrant
  module Action
    autoload :Clean, 'berkshelf/vagrant/action/clean'
    autoload :ConfigureChef, 'berkshelf/vagrant/action/configure_chef'
    autoload :Install, 'berkshelf/vagrant/action/install'
    autoload :LoadShelf, 'berkshelf/vagrant/action/load_shelf'
    autoload :SetUI, 'berkshelf/vagrant/action/set_ui'
    autoload :Upload, 'berkshelf/vagrant/action/upload'

    class << self
      # Return the Berkshelf install middleware stack. When placed in the action chain
      # this stack will find retrieve and resolve the cookbook dependencies describe
      # in your configured Berksfile.
      #
      # Cookbooks will installed into a temporary directory, called a Shelf, and mounted
      # into the VM. This mounted path will be appended to the chef_solo.cookbooks_path value.
      #
      # @return [::Vagrant::Action::Builder]
      def install
        @install ||= ::Vagrant::Action::Builder.new.tap do |b|
          b.use Berkshelf::Vagrant::Action::Install
        end
      end

      # Return the Berkshelf upload middleware stack. When placed in the action chain
      # this stack will upload cookbooks to a Chef Server if the Chef-Client provisioner
      # is used. The Chef Server where the cookbooks will be uploaded to is the same Chef
      # Server used in the Chef-Client provisioner.
      #
      # Nothing will be done if the Chef-Solo provisioner is used.
      #
      # @return [::Vagrant::Action::Builder]
      def upload
        @upload ||= ::Vagrant::Action::Builder.new.tap do |b|
          b.use Berkshelf::Vagrant::Action::Upload
        end
      end

      # Return the Berkshelf clean middleware stack. When placed in the action chain
      # this stack will clean up any temporary directories or files created by the other
      # middleware stacks.
      #
      # @return [::Vagrant::Action::Builder]
      def clean
        @clean ||= ::Vagrant::Action::Builder.new.tap do |b|
          b.use setup
          b.use Berkshelf::Vagrant::Action::Clean
        end
      end

      def setup
        @setup ||= ::Vagrant::Action::Builder.new.tap do |b|
          b.use ::Vagrant::Action::Builtin::EnvSet, berkshelf: Berkshelf::Vagrant::Env.new
          b.use Berkshelf::Vagrant::Action::SetUI
          b.use Berkshelf::Vagrant::Action::LoadShelf
          b.use Berkshelf::Vagrant::Action::ConfigureChef
        end
      end
    end
  end
end