// 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.maps.weather.v1;

option csharp_namespace = "Google.Geo.Weather.V1";
option go_package = "cloud.google.com/go/maps/weather/apiv1/weatherpb;weatherpb";
option java_multiple_files = true;
option java_outer_classname = "VisibilityProto";
option java_package = "com.google.maps.weather.v1";
option objc_class_prefix = "GMWV1";
option php_namespace = "Google\\Geo\\Weather\\V1";

// Represents visibility conditions, the distance at which objects can be
// discerned.
message Visibility {
  // Represents the unit used to measure the visibility distance.
  enum Unit {
    // The visibility unit is unspecified.
    UNIT_UNSPECIFIED = 0;

    // The visibility is measured in kilometers.
    KILOMETERS = 1;

    // The visibility is measured in miles.
    MILES = 2;
  }

  // The visibility distance in the specified unit.
  optional float distance = 1;

  // The code that represents the unit used to measure the distance.
  Unit unit = 2;
}