module Proxy
  module ContainerGateway
    class NotFound < RuntimeError; end

    class Plugin < ::Proxy::Plugin
      plugin 'container_gateway', Proxy::ContainerGateway::VERSION

      default_settings :pulp_endpoint => "https://#{`hostname`.strip}",
                       :katello_registry_path => '/v2/',
                       :sqlite_timeout => 30_000

      # Load defaults that copy values from SETTINGS. This is done as
      # programmable settings since SETTINGS isn't initialized during plugin
      # loading.
      load_programmable_settings do |settings|
        settings[:pulp_client_ssl_ca] ||= SETTINGS.foreman_ssl_ca
        settings[:pulp_client_ssl_cert] ||= SETTINGS.foreman_ssl_cert
        settings[:pulp_client_ssl_key] ||= SETTINGS.foreman_ssl_key
      end

      # TODO: sqlite_db_path should able be readable or creatable. There's no
      # test for creatable
      validate_readable :pulp_client_ssl_ca, :pulp_client_ssl_cert, :pulp_client_ssl_key
      validate :pulp_endpoint, url: true

      rackup_path File.join(__dir__, 'container_gateway_http_config.ru')

      load_dependency_injection_wirings do |container_instance, settings|
        container_instance.singleton_dependency :database_impl, (lambda do
          connection_string = settings.fetch(:db_connection_string) do
            unless settings[:sqlite_db_path]
              raise ValueError, 'Missing db_connection_string or sqlite_db_path option'
            end

            # Legacy setup
            "sqlite://#{settings[:sqlite_db_path]}?timeout=#{settings[:sqlite_timeout]}"
          end

          Proxy::ContainerGateway::Database.new(connection_string, settings[:sqlite_db_path])
        end)
        container_instance.singleton_dependency :container_gateway_main_impl, (lambda do
          Proxy::ContainerGateway::ContainerGatewayMain.new(
            database: container_instance.get_dependency(:database_impl),
            **settings.slice(:pulp_endpoint, :pulp_client_ssl_ca, :pulp_client_ssl_cert, :pulp_client_ssl_key)
          )
        end)
      end
    end
  end
end