// 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.firestore.admin.v1beta2;

import "google/api/annotations.proto";
import "google/firestore/admin/v1beta2/index.proto";
import "google/protobuf/timestamp.proto";

option csharp_namespace = "Google.Cloud.Firestore.Admin.V1Beta2";
option go_package = "google.golang.org/genproto/googleapis/firestore/admin/v1beta2;admin";
option java_multiple_files = true;
option java_outer_classname = "OperationProto";
option java_package = "com.google.firestore.admin.v1beta2";
option objc_class_prefix = "GCFS";


// Metadata for [google.longrunning.Operation][google.longrunning.Operation] results from
// [FirestoreAdmin.UpdateField][google.firestore.admin.v1beta2.FirestoreAdmin.UpdateField].
message FieldOperationMetadata {
  // Information about an index configuration change.
  message IndexConfigDelta {
    // Specifies how the index is changing.
    enum ChangeType {
      // The type of change is not specified or known.
      CHANGE_TYPE_UNSPECIFIED = 0;

      // The single field index is being added.
      ADD = 1;

      // The single field index is being removed.
      REMOVE = 2;
    }

    // Specifies how the index is changing.
    ChangeType change_type = 1;

    // The index being changed.
    Index index = 2;
  }

  // The time this operation started.
  google.protobuf.Timestamp start_time = 1;

  // The time this operation completed. Will be unset if operation still in
  // progress.
  google.protobuf.Timestamp end_time = 2;

  // The field resource that this operation is acting on. For example:
  // `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/fields/{field_path}`
  string field = 3;

  // A list of [IndexConfigDelta][google.firestore.admin.v1beta2.FieldOperationMetadata.IndexConfigDelta], which describe the intent of this
  // operation.
  repeated IndexConfigDelta index_config_deltas = 4;

  // The state of the operation.
  OperationState state = 5;

  // The progress, in documents, of this operation.
  Progress document_progress = 6;

  // The progress, in bytes, of this operation.
  Progress bytes_progress = 7;
}

// Describes the progress of the operation.
// Unit of work is generic and must be interpreted based on where [Progress][google.firestore.admin.v1beta2.Progress]
// is used.
message Progress {
  // The amount of work estimated.
  int64 estimated_work = 1;

  // The amount of work completed.
  int64 completed_work = 2;
}

// Describes the state of the operation.
enum OperationState {
  // Unspecified.
  OPERATION_STATE_UNSPECIFIED = 0;

  // Request is being prepared for processing.
  INITIALIZING = 1;

  // Request is actively being processed.
  PROCESSING = 2;

  // Request is in the process of being cancelled after user called
  // google.longrunning.Operations.CancelOperation on the operation.
  CANCELLING = 3;

  // Request has been processed and is in its finalization stage.
  FINALIZING = 4;

  // Request has completed successfully.
  SUCCESSFUL = 5;

  // Request has finished being processed, but encountered an error.
  FAILED = 6;

  // Request has finished being cancelled after user called
  // google.longrunning.Operations.CancelOperation.
  CANCELLED = 7;
}
