// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto2";

option optimize_for = LITE_RUNTIME;

import "common.proto";

package blimp;

message GeolocationErrorMessage {
  enum ErrorCode {
    PERMISSION_DENIED = 1;
    POSITION_UNAVAILABLE = 2;
    TIMEOUT = 3;
  }

  optional ErrorCode error_code = 1;
  optional string error_message = 2;
}

message GeolocationCoordinatesMessage {
  optional double latitude = 1;
  optional double longitude = 2;
  optional double altitude = 3;
  optional double accuracy = 4;
  optional double altitude_accuracy = 5;
  optional double heading = 6;
  optional double speed = 7;
}

message GeolocationSetInterestLevelMessage {
  // These values represent the various listening states the server can have.
  // A Level containing an accuracy level indicates that the server is
  // waiting for either high or low accuracy position updates from the client.
  // If a NO_INTEREST level is sent, the server is no longer listening
  // for updates.
  enum Level {
    NO_INTEREST = 0;
    HIGH_ACCURACY = 1;
    LOW_ACCURACY = 2;
  }

  optional Level level = 1;
}

message GeolocationMessage {
  oneof type {
    // Server => Client types.
    GeolocationSetInterestLevelMessage set_interest_level = 1;
    EmptyMessage request_refresh = 2;

    // Client => Server types.
    GeolocationCoordinatesMessage coordinates = 3;
    GeolocationErrorMessage error = 4;
  }
}