<%- assert_locals service -%>
<% @requires = capture do %>
require "gapic/operation"
require "<%= service.lro_service.proto_service_require %>"
<% end %>
# Service that implements Longrunning Operations API.
class <%= service.operations_name %>
  # @private
  attr_reader :<%= service.lro_service.stub_name %>

  ##
  # Configuration for the <%= service.name %> Operations API.
  #
  # @yield [config] Configure the <%= service.operations_name %> client.
  # @yieldparam config [<%= service.operations_name %>::Configuration]
  #
  # @return [<%= service.operations_name %>::Configuration]
  #
  def self.configure
    @configure ||= <%= service.operations_name %>::Configuration.new
    yield @configure if block_given?
    @configure
  end

  ##
  # Configure the <%= service.name %> <%= service.operations_name %> instance.
  #
  # The configuration is set to the derived mode, meaning that values can be changed,
  # but structural changes (adding new fields, etc.) are not allowed. Structural changes
  # should be made on {<%= service.operations_name %>.configure}.
  #
  # @yield [config] Configure the <%= service.operations_name %> client.
  # @yieldparam config [<%= service.operations_name %>::Configuration]
  #
  # @return [<%= service.operations_name %>::Configuration]
  #
  def configure
    yield @config if block_given?
    @config
  end

  ##
  # Create a new <%= service.operations_name %> client object.
  #
  # @yield [config] Configure the <%= service.client_name %> client.
  # @yieldparam config [<%= service.operations_name %>::Configuration]
  #
  def initialize
    # These require statements are intentionally placed here to initialize
    # the gRPC module only when it's required.
    # See https://github.com/googleapis/toolkit/issues/446
    require "gapic/grpc"
    require "<%= service.lro_service.proto_services_require %>"

    # Create the configuration object
    @config = Configuration.new <%= service.operations_name %>.configure

    # Yield the configuration if needed
    yield @config if block_given?

    # Create credentials
    credentials = @config.credentials
    credentials ||= Credentials.default scope: @config.scope
    if credentials.is_a?(String) || credentials.is_a?(Hash)
      credentials = Credentials.new credentials, scope: @config.scope
    end
    @quota_project_id = @config.quota_project
    @quota_project_id ||= credentials.quota_project_id if credentials.respond_to? :quota_project_id

    @<%= service.lro_service.stub_name %> = ::Gapic::ServiceStub.new(
      <%= service.lro_service.proto_service_stub_name_full %>,
      credentials:  credentials,
      endpoint:     @config.endpoint,
      channel_args: @config.channel_args,
      interceptors: @config.interceptors
    )
  end

  # Service calls
  <%- service.lro_service.methods.each do |method| -%>

  <%= indent_tail render(partial: "service/client/method/def", locals: { method: method }), 2 %>
  <%- end %>

  <%= indent_tail render(partial: "service/client/config", locals: { service: service.lro_service }), 2 %>
end