// Copyright 2022 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 = "proto2";

package mdi.download.populator;

option java_package = "com.google.mobiledatadownload.populator";
option java_outer_classname = "MetadataProto";

// Bookkeeps the metadata of manifest file.
// Next tag: 4
message ManifestFileBookkeeping {
  // The url where the manifest file is served.
  optional string manifest_file_url = 3;

  // The cached ETag that is fetched from the target url and stored on device.
  // This is used for content change detection.
  optional string cached_etag = 1;

  // The status of downloading the manifest file.
  enum Status {
    INVALID = 0;

    // The file is absent or the download has started.
    PENDING = 1;

    // The download has completed but the file has not been parsed.
    DOWNLOADED = 2;

    // The file was parsed and file groups were added to MDD.
    COMMITTED = 3;
  }

  optional Status status = 2;
}