// Copyright 2025 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.cloud.discoveryengine.v1;

import "google/api/annotations.proto";
import "google/api/client.proto";
import "google/api/field_behavior.proto";
import "google/api/resource.proto";
import "google/cloud/discoveryengine/v1/conversational_search_service.proto";
import "google/cloud/discoveryengine/v1/session.proto";
import "google/protobuf/empty.proto";

option csharp_namespace = "Google.Cloud.DiscoveryEngine.V1";
option go_package = "cloud.google.com/go/discoveryengine/apiv1/discoveryenginepb;discoveryenginepb";
option java_multiple_files = true;
option java_outer_classname = "SessionServiceProto";
option java_package = "com.google.cloud.discoveryengine.v1";
option objc_class_prefix = "DISCOVERYENGINE";
option php_namespace = "Google\\Cloud\\DiscoveryEngine\\V1";
option ruby_package = "Google::Cloud::DiscoveryEngine::V1";

// Service for managing Sessions and Session-related resources.
service SessionService {
  option (google.api.default_host) = "discoveryengine.googleapis.com";
  option (google.api.oauth_scopes) =
      "https://www.googleapis.com/auth/cloud-platform";

  // Creates a Session.
  //
  // If the [Session][google.cloud.discoveryengine.v1.Session] to create already
  // exists, an ALREADY_EXISTS error is returned.
  rpc CreateSession(CreateSessionRequest) returns (Session) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/locations/*/dataStores/*}/sessions"
      body: "session"
      additional_bindings {
        post: "/v1/{parent=projects/*/locations/*/collections/*/dataStores/*}/sessions"
        body: "session"
      }
      additional_bindings {
        post: "/v1/{parent=projects/*/locations/*/collections/*/engines/*}/sessions"
        body: "session"
      }
    };
    option (google.api.method_signature) = "parent,session";
  }

  // Deletes a Session.
  //
  // If the [Session][google.cloud.discoveryengine.v1.Session] to delete does
  // not exist, a NOT_FOUND error is returned.
  rpc DeleteSession(DeleteSessionRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete: "/v1/{name=projects/*/locations/*/dataStores/*/sessions/*}"
      additional_bindings {
        delete: "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/sessions/*}"
      }
      additional_bindings {
        delete: "/v1/{name=projects/*/locations/*/collections/*/engines/*/sessions/*}"
      }
    };
    option (google.api.method_signature) = "name";
  }

  // Updates a Session.
  //
  // [Session][google.cloud.discoveryengine.v1.Session] action type cannot be
  // changed. If the [Session][google.cloud.discoveryengine.v1.Session] to
  // update does not exist, a NOT_FOUND error is returned.
  rpc UpdateSession(UpdateSessionRequest) returns (Session) {
    option (google.api.http) = {
      patch: "/v1/{session.name=projects/*/locations/*/dataStores/*/sessions/*}"
      body: "session"
      additional_bindings {
        patch: "/v1/{session.name=projects/*/locations/*/collections/*/dataStores/*/sessions/*}"
        body: "session"
      }
      additional_bindings {
        patch: "/v1/{session.name=projects/*/locations/*/collections/*/engines/*/sessions/*}"
        body: "session"
      }
    };
    option (google.api.method_signature) = "session,update_mask";
  }

  // Gets a Session.
  rpc GetSession(GetSessionRequest) returns (Session) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/dataStores/*/sessions/*}"
      additional_bindings {
        get: "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/sessions/*}"
      }
      additional_bindings {
        get: "/v1/{name=projects/*/locations/*/collections/*/engines/*/sessions/*}"
      }
    };
    option (google.api.method_signature) = "name";
  }

  // Lists all Sessions by their parent
  // [DataStore][google.cloud.discoveryengine.v1.DataStore].
  rpc ListSessions(ListSessionsRequest) returns (ListSessionsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*/dataStores/*}/sessions"
      additional_bindings {
        get: "/v1/{parent=projects/*/locations/*/collections/*/dataStores/*}/sessions"
      }
      additional_bindings {
        get: "/v1/{parent=projects/*/locations/*/collections/*/engines/*}/sessions"
      }
    };
    option (google.api.method_signature) = "parent";
  }
}