// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package google.api;

import "google/api/launch_stage.proto";
import "google/protobuf/descriptor.proto";
import "google/protobuf/duration.proto";

option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
option java_multiple_files = true;
option java_outer_classname = "ClientProto";
option java_package = "com.google.api";
option objc_class_prefix = "GAPI";

extend google.protobuf.MethodOptions {
  // A definition of a client library method signature.
  //
  // In client libraries, each proto RPC corresponds to one or more methods
  // which the end user is able to call, and calls the underlying RPC.
  // Normally, this method receives a single argument (a struct or instance
  // corresponding to the RPC request object). Defining this field will
  // add one or more overloads providing flattened or simpler method signatures
  // in some languages.
  //
  // The fields on the method signature are provided as a comma-separated
  // string.
  //
  // For example, the proto RPC and annotation:
  //
  //   rpc CreateSubscription(CreateSubscriptionRequest)
  //       returns (Subscription) {
  //     option (google.api.method_signature) = "name,topic";
  //   }
  //
  // Would add the following Java overload (in addition to the method accepting
  // the request object):
  //
  //   public final Subscription createSubscription(String name, String topic)
  //
  // The following backwards-compatibility guidelines apply:
  //
  //   * Adding this annotation to an unannotated method is backwards
  //     compatible.
  //   * Adding this annotation to a method which already has existing
  //     method signature annotations is backwards compatible if and only if
  //     the new method signature annotation is last in the sequence.
  //   * Modifying or removing an existing method signature annotation is
  //     a breaking change.
  //   * Re-ordering existing method signature annotations is a breaking
  //     change.
  repeated string method_signature = 1051;
}

extend google.protobuf.ServiceOptions {
  // The hostname for this service.
  // This should be specified with no prefix or protocol.
  //
  // Example:
  //
  //   service Foo {
  //     option (google.api.default_host) = "foo.googleapi.com";
  //     ...
  //   }
  string default_host = 1049;

  // OAuth scopes needed for the client.
  //
  // Example:
  //
  //   service Foo {
  //     option (google.api.oauth_scopes) = \
  //       "https://www.googleapis.com/auth/cloud-platform";
  //     ...
  //   }
  //
  // If there is more than one scope, use a comma-separated string:
  //
  // Example:
  //
  //   service Foo {
  //     option (google.api.oauth_scopes) = \
  //       "https://www.googleapis.com/auth/cloud-platform,"
  //       "https://www.googleapis.com/auth/monitoring";
  //     ...
  //   }
  string oauth_scopes = 1050;
}

// Required information for every language.
message CommonLanguageSettings {
  // Link to automatically generated reference documentation.  Example:
  // https://cloud.google.com/nodejs/docs/reference/asset/latest
  string reference_docs_uri = 1 [deprecated = true];

  // The destination where API teams want this client library to be published.
  repeated ClientLibraryDestination destinations = 2;
}

// Details about how and where to publish client libraries.
message ClientLibrarySettings {
  // Version of the API to apply these settings to.
  string version = 1;

  // Launch stage of this version of the API.
  LaunchStage launch_stage = 2;

  // When using transport=rest, the client request will encode enums as
  // numbers rather than strings.
  bool rest_numeric_enums = 3;

  // Settings for legacy Java features, supported in the Service YAML.
  JavaSettings java_settings = 21;

  // Settings for C++ client libraries.
  CppSettings cpp_settings = 22;

  // Settings for PHP client libraries.
  PhpSettings php_settings = 23;

  // Settings for Python client libraries.
  PythonSettings python_settings = 24;

  // Settings for Node client libraries.
  NodeSettings node_settings = 25;

  // Settings for .NET client libraries.
  DotnetSettings dotnet_settings = 26;

  // Settings for Ruby client libraries.
  RubySettings ruby_settings = 27;

  // Settings for Go client libraries.
  GoSettings go_settings = 28;
}

// This message configures the settings for publishing [Google Cloud Client
// libraries](https://cloud.google.com/apis/docs/cloud-client-libraries)
// generated from the service config.
message Publishing {
  // A list of API method settings, e.g. the behavior for methods that use the
  // long-running operation pattern.
  repeated MethodSettings method_settings = 2;

  // Link to a place that API users can report issues.  Example:
  // https://issuetracker.google.com/issues/new?component=190865&template=1161103
  string new_issue_uri = 101;

  // Link to product home page.  Example:
  // https://cloud.google.com/asset-inventory/docs/overview
  string documentation_uri = 102;

  // Used as a tracking tag when collecting data about the APIs developer
  // relations artifacts like docs, packages delivered to package managers,
  // etc.  Example: "speech".
  string api_short_name = 103;

  // GitHub label to apply to issues and pull requests opened for this API.
  string github_label = 104;

  // GitHub teams to be added to CODEOWNERS in the directory in GitHub
  // containing source code for the client libraries for this API.
  repeated string codeowner_github_teams = 105;

  // A prefix used in sample code when demarking regions to be included in
  // documentation.
  string doc_tag_prefix = 106;

  // For whom the client library is being published.
  ClientLibraryOrganization organization = 107;

  // Client library settings.  If the same version string appears multiple
  // times in this list, then the last one wins.  Settings from earlier
  // settings with the same version string are discarded.
  repeated ClientLibrarySettings library_settings = 109;
}

// Settings for Java client libraries.
message JavaSettings {
  // The package name to use in Java. Clobbers the java_package option
  // set in the protobuf. This should be used **only** by APIs
  // who have already set the language_settings.java.package_name" field
  // in gapic.yaml. API teams should use the protobuf java_package option
  // where possible.
  //
  // Example of a YAML configuration::
  //
  //  publishing:
  //    java_settings:
  //      library_package: com.google.cloud.pubsub.v1
  string library_package = 1;

  // Configure the Java class name to use instead of the service's for its
  // corresponding generated GAPIC client. Keys are fully-qualified
  // service names as they appear in the protobuf (including the full
  // the language_settings.java.interface_names" field in gapic.yaml. API
  // teams should otherwise use the service name as it appears in the
  // protobuf.
  //
  // Example of a YAML configuration::
  //
  //  publishing:
  //    java_settings:
  //      service_class_names:
  //        - google.pubsub.v1.Publisher: TopicAdmin
  //        - google.pubsub.v1.Subscriber: SubscriptionAdmin
  map<string, string> service_class_names = 2;

  // Some settings.
  CommonLanguageSettings common = 3;
}

// Settings for C++ client libraries.
message CppSettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Settings for Php client libraries.
message PhpSettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Settings for Python client libraries.
message PythonSettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Settings for Node client libraries.
message NodeSettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Settings for Dotnet client libraries.
message DotnetSettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Settings for Ruby client libraries.
message RubySettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Settings for Go client libraries.
message GoSettings {
  // Some settings.
  CommonLanguageSettings common = 1;
}

// Describes the generator configuration for a method.
message MethodSettings {
  // Describes settings to use when generating API methods that use the
  // long-running operation pattern.
  // All default values below are from those used in the client library
  // generators (e.g.
  // [Java](https://github.com/googleapis/gapic-generator-java/blob/04c2faa191a9b5a10b92392fe8482279c4404803/src/main/java/com/google/api/generator/gapic/composer/common/RetrySettingsComposer.java)).
  message LongRunning {
    // Initial delay after which the first poll request will be made.
    // Default value: 5 seconds.
    google.protobuf.Duration initial_poll_delay = 1;

    // Multiplier to gradually increase delay between subsequent polls until it
    // reaches max_poll_delay.
    // Default value: 1.5.
    float poll_delay_multiplier = 2;

    // Maximum time between two subsequent poll requests.
    // Default value: 45 seconds.
    google.protobuf.Duration max_poll_delay = 3;

    // Total polling timeout.
    // Default value: 5 minutes.
    google.protobuf.Duration total_poll_timeout = 4;
  }

  // The fully qualified name of the method, for which the options below apply.
  // This is used to find the method to apply the options.
  string selector = 1;

  // Describes settings to use for long-running operations when generating
  // API methods for RPCs. Complements RPCs that use the annotations in
  // google/longrunning/operations.proto.
  //
  // Example of a YAML configuration::
  //
  //  publishing:
  //    method_behavior:
  //      - selector: CreateAdDomain
  //        long_running:
  //          initial_poll_delay:
  //            seconds: 60 # 1 minute
  //          poll_delay_multiplier: 1.5
  //          max_poll_delay:
  //            seconds: 360 # 6 minutes
  //          total_poll_timeout:
  //             seconds: 54000 # 90 minutes
  LongRunning long_running = 2;
}

// The organization for which the client libraries are being published.
// Affects the url where generated docs are published, etc.
enum ClientLibraryOrganization {
  // Not useful.
  CLIENT_LIBRARY_ORGANIZATION_UNSPECIFIED = 0;

  // Google Cloud Platform Org.
  CLOUD = 1;

  // Ads (Advertising) Org.
  ADS = 2;

  // Photos Org.
  PHOTOS = 3;

  // Street View Org.
  STREET_VIEW = 4;
}

// To where should client libraries be published?
enum ClientLibraryDestination {
  // Client libraries will neither be generated nor published to package
  // managers.
  CLIENT_LIBRARY_DESTINATION_UNSPECIFIED = 0;

  // Generate the client library in a repo under github.com/googleapis,
  // but don't publish it to package managers.
  GITHUB = 10;

  // Publish the library to package managers like nuget.org and npmjs.com.
  PACKAGE_MANAGER = 20;
}
