// Copyright 2016 Google Inc.
//
// 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.appengine.v1;

import "google/api/annotations.proto";
import "google/appengine/v1/application.proto";
import "google/appengine/v1/instance.proto";
import "google/appengine/v1/service.proto";
import "google/appengine/v1/version.proto";
import "google/iam/v1/iam_policy.proto";
import "google/iam/v1/policy.proto";
import "google/longrunning/operations.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/field_mask.proto";

option go_package = "google.golang.org/genproto/googleapis/appengine/v1;appengine";
option java_multiple_files = true;
option java_outer_classname = "AppengineProto";
option java_package = "com.google.appengine.v1";

// Manages instances of a version.
service Instances {
  // Lists the instances of a version.
  rpc ListInstances(ListInstancesRequest) returns (ListInstancesResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=apps/*/services/*/versions/*}/instances"
    };
  }

  // Gets instance information.
  rpc GetInstance(GetInstanceRequest) returns (Instance) {
    option (google.api.http) = {
      get: "/v1/{name=apps/*/services/*/versions/*/instances/*}"
    };
  }

  // Stops a running instance.
  rpc DeleteInstance(DeleteInstanceRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      delete: "/v1/{name=apps/*/services/*/versions/*/instances/*}"
    };
  }

  // Enables debugging on a VM instance. This allows you to use the SSH
  // command to connect to the virtual machine where the instance lives.
  // While in "debug mode", the instance continues to serve live traffic.
  // You should delete the instance when you are done debugging and then
  // allow the system to take over and determine if another instance
  // should be started.
  //
  // Only applicable for instances in App Engine flexible environment.
  rpc DebugInstance(DebugInstanceRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{name=apps/*/services/*/versions/*/instances/*}:debug"
      body: "*"
    };
  }
}

// Manages versions of a service.
service Versions {
  // Lists the versions of a service.
  rpc ListVersions(ListVersionsRequest) returns (ListVersionsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=apps/*/services/*}/versions"
    };
  }

  // Gets the specified Version resource.
  // By default, only a `BASIC_VIEW` will be returned.
  // Specify the `FULL_VIEW` parameter to get the full resource.
  rpc GetVersion(GetVersionRequest) returns (Version) {
    option (google.api.http) = {
      get: "/v1/{name=apps/*/services/*/versions/*}"
    };
  }

  // Deploys code and resource files to a new version.
  rpc CreateVersion(CreateVersionRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{parent=apps/*/services/*}/versions"
      body: "version"
    };
  }

  // Updates the specified Version resource.
  // You can specify the following fields depending on the App Engine
  // environment and type of scaling that the version resource uses:
  //
  // * [`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status):
  //   For Version resources that use basic scaling, manual scaling, or run in
  //   the App Engine flexible environment.
  // * [`instance_class`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.instance_class):
  //   For Version resources that run in the App Engine standard environment.
  // * [`automatic_scaling.min_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling):
  //   For Version resources that use automatic scaling and run in the App
  //   Engine standard environment.
  // * [`automatic_scaling.max_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling):
  //   For Version resources that use automatic scaling and run in the App
  //   Engine standard environment.
  rpc UpdateVersion(UpdateVersionRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      patch: "/v1/{name=apps/*/services/*/versions/*}"
      body: "version"
    };
  }

  // Deletes an existing Version resource.
  rpc DeleteVersion(DeleteVersionRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      delete: "/v1/{name=apps/*/services/*/versions/*}"
    };
  }
}

// Manages services of an application.
service Services {
  // Lists all the services in the application.
  rpc ListServices(ListServicesRequest) returns (ListServicesResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=apps/*}/services"
    };
  }

  // Gets the current configuration of the specified service.
  rpc GetService(GetServiceRequest) returns (Service) {
    option (google.api.http) = {
      get: "/v1/{name=apps/*/services/*}"
    };
  }

  // Updates the configuration of the specified service.
  rpc UpdateService(UpdateServiceRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      patch: "/v1/{name=apps/*/services/*}"
      body: "service"
    };
  }

  // Deletes the specified service and all enclosed versions.
  rpc DeleteService(DeleteServiceRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      delete: "/v1/{name=apps/*/services/*}"
    };
  }
}

// Manages App Engine applications.
service Applications {
  // Gets information about an application.
  rpc GetApplication(GetApplicationRequest) returns (Application) {
    option (google.api.http) = {
      get: "/v1/{name=apps/*}"
    };
  }

  // Recreates the required App Engine features for the application in your
  // project, for example a Cloud Storage bucket or App Engine service account.
  // Use this method if you receive an error message about a missing feature,
  // for example "*Error retrieving the App Engine service account*".
  rpc RepairApplication(RepairApplicationRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{name=apps/*}:repair"
      body: "*"
    };
  }
}

// Request message for `Applications.GetApplication`.
message GetApplicationRequest {
  // Name of the Application resource to get. Example: `apps/myapp`.
  string name = 1;
}

// Request message for 'Applications.RepairApplication'.
message RepairApplicationRequest {
  // Name of the application to repair. Example: `apps/myapp`
  string name = 1;
}

// Request message for `Services.ListServices`.
message ListServicesRequest {
  // Name of the parent Application resource. Example: `apps/myapp`.
  string parent = 1;

  // Maximum results to return per page.
  int32 page_size = 2;

  // Continuation token for fetching the next page of results.
  string page_token = 3;
}

// Response message for `Services.ListServices`.
message ListServicesResponse {
  // The services belonging to the requested application.
  repeated Service services = 1;

  // Continuation token for fetching the next page of results.
  string next_page_token = 2;
}

// Request message for `Services.GetService`.
message GetServiceRequest {
  // Name of the resource requested. Example: `apps/myapp/services/default`.
  string name = 1;
}

// Request message for `Services.UpdateService`.
message UpdateServiceRequest {
  // Name of the resource to update. Example: `apps/myapp/services/default`.
  string name = 1;

  // A Service resource containing the updated service. Only fields set in the
  // field mask will be updated.
  Service service = 2;

  // Standard field mask for the set of fields to be updated.
  google.protobuf.FieldMask update_mask = 3;

  // Set to `true` to gradually shift traffic from one version to another
  // single version. By default, traffic is shifted immediately.
  // For gradual traffic migration, the target version
  // must be located within instances that are configured for both
  // [warmup
  // requests](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#inboundservicetype)
  // and
  // [automatic
  // scaling](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#automaticscaling).
  // You must specify the
  // [`shardBy`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services#shardby)
  // field in the Service resource. Gradual traffic migration is not
  // supported in the App Engine flexible environment. For examples, see
  // [Migrating and Splitting
  // Traffic](https://cloud.google.com/appengine/docs/admin-api/migrating-splitting-traffic).
  bool migrate_traffic = 4;
}

// Request message for `Services.DeleteService`.
message DeleteServiceRequest {
  // Name of the resource requested. Example: `apps/myapp/services/default`.
  string name = 1;
}

// Request message for `Versions.ListVersions`.
message ListVersionsRequest {
  // Name of the parent Service resource. Example:
  // `apps/myapp/services/default`.
  string parent = 1;

  // Controls the set of fields returned in the `List` response.
  VersionView view = 2;

  // Maximum results to return per page.
  int32 page_size = 3;

  // Continuation token for fetching the next page of results.
  string page_token = 4;
}

// Response message for `Versions.ListVersions`.
message ListVersionsResponse {
  // The versions belonging to the requested service.
  repeated Version versions = 1;

  // Continuation token for fetching the next page of results.
  string next_page_token = 2;
}

// Request message for `Versions.GetVersion`.
message GetVersionRequest {
  // Name of the resource requested. Example:
  // `apps/myapp/services/default/versions/v1`.
  string name = 1;

  // Controls the set of fields returned in the `Get` response.
  VersionView view = 2;
}

// Request message for `Versions.CreateVersion`.
message CreateVersionRequest {
  // Name of the parent resource to create this version under. Example:
  // `apps/myapp/services/default`.
  string parent = 1;

  // Application deployment configuration.
  Version version = 2;
}

// Request message for `Versions.UpdateVersion`.
message UpdateVersionRequest {
  // Name of the resource to update. Example:
  // `apps/myapp/services/default/versions/1`.
  string name = 1;

  // A Version containing the updated resource. Only fields set in the field
  // mask will be updated.
  Version version = 2;

  // Standard field mask for the set of fields to be updated.
  google.protobuf.FieldMask update_mask = 3;
}

// Request message for `Versions.DeleteVersion`.
message DeleteVersionRequest {
  // Name of the resource requested. Example:
  // `apps/myapp/services/default/versions/v1`.
  string name = 1;
}

// Request message for `Instances.ListInstances`.
message ListInstancesRequest {
  // Name of the parent Version resource. Example:
  // `apps/myapp/services/default/versions/v1`.
  string parent = 1;

  // Maximum results to return per page.
  int32 page_size = 2;

  // Continuation token for fetching the next page of results.
  string page_token = 3;
}

// Response message for `Instances.ListInstances`.
message ListInstancesResponse {
  // The instances belonging to the requested version.
  repeated Instance instances = 1;

  // Continuation token for fetching the next page of results.
  string next_page_token = 2;
}

// Request message for `Instances.GetInstance`.
message GetInstanceRequest {
  // Name of the resource requested. Example:
  // `apps/myapp/services/default/versions/v1/instances/instance-1`.
  string name = 1;
}

// Request message for `Instances.DeleteInstance`.
message DeleteInstanceRequest {
  // Name of the resource requested. Example:
  // `apps/myapp/services/default/versions/v1/instances/instance-1`.
  string name = 1;
}

// Request message for `Instances.DebugInstance`.
message DebugInstanceRequest {
  // Name of the resource requested. Example:
  // `apps/myapp/services/default/versions/v1/instances/instance-1`.
  string name = 1;
}

// Fields that should be returned when [Version][google.appengine.v1.Version]
// resources are retreived.
enum VersionView {
  // Basic version information including scaling and inbound services,
  // but not detailed deployment information.
  BASIC = 0;

  // The information from `BASIC`, plus detailed information about the
  // deployment. This format is required when creating resources, but
  // is not returned in `Get` or `List` by default.
  FULL = 1;
}