// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Sync protocol datatype extension for sharing message.

// If you change or add any fields in this file, update proto_visitors.h and
// potentially proto_enum_conversions.{h, cc}.

syntax = "proto2";

option go_package = "./sync_pb";

option java_multiple_files = true;
option java_package = "org.chromium.components.sync.protocol";

option optimize_for = LITE_RUNTIME;

package sync_pb;

message SharingMessageSpecifics {
  // Unique identifier of message.
  optional string message_id = 1;

  message ChannelConfiguration {
    message FCMChannelConfiguration {
      // FCM registration token of target device.
      optional string token = 1;

      // Time to live for a FCM message (in seconds) - if specified, the message
      // will expire based on the TTL.
      optional int32 ttl = 2;

      // Priority level of a FCM message. 5 = normal, 10 = high.
      optional int32 priority = 3;
    }

    oneof channel_configuration {
      // FCM channel configuration. Message will be delivered as a FCM message.
      FCMChannelConfiguration fcm = 1;

      // Opaque server channel configuration. Message will be delivered through
      // server channel.
      bytes server = 2;
    }
  }

  optional ChannelConfiguration channel_configuration = 2;

  // Payload encrypted using the target user keys according to WebPush
  // encryption scheme. The payload has to be a valid
  // chrome/browser/sharing/proto/sharing_message.proto serialized using
  // SerializeToString.
  optional bytes payload = 3;
}

// Used for the server to return fine grained commit errors back to the client.
message SharingMessageCommitError {
  // This enum is used in histograms. Entries should not be renumbered and
  // numeric values should never be reused. Also remember to update in
  // tools/metrics/histograms/enums.xml SyncSharingMessageCommitErrorCode enum.
  enum ErrorCode {
    NONE = 0;
    INVALID_ARGUMENT = 1;
    NOT_FOUND = 2;
    INTERNAL = 3;
    UNAVAILABLE = 4;
    RESOURCE_EXHAUSTED = 5;
    UNAUTHENTICATED = 6;
    PERMISSION_DENIED = 7;

    // Client-specific error codes.
    SYNC_TURNED_OFF = 8;
    SYNC_NETWORK_ERROR = 9;
    // Deprecated UMA bucket, prior to splitting between SYNC_SERVER_ERROR and
    // SYNC_AUTH_ERROR.
    DEPRECATED_SYNC_SERVER_OR_AUTH_ERROR = 10;
    // Message wasn't committed before timeout.
    SYNC_TIMEOUT = 11;
    // Error code for server error or unparsable server response.
    SYNC_SERVER_ERROR = 12;
    // Auth error when communicating with the server.
    SYNC_AUTH_ERROR = 13;
  }

  optional ErrorCode error_code = 1;
}