// Copyright 2021 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.ads.googleads.v8.common;

import "google/ads/googleads/v8/enums/frequency_cap_event_type.proto";
import "google/ads/googleads/v8/enums/frequency_cap_level.proto";
import "google/ads/googleads/v8/enums/frequency_cap_time_unit.proto";
import "google/api/annotations.proto";

option csharp_namespace = "Google.Ads.GoogleAds.V8.Common";
option go_package = "google.golang.org/genproto/googleapis/ads/googleads/v8/common;common";
option java_multiple_files = true;
option java_outer_classname = "FrequencyCapProto";
option java_package = "com.google.ads.googleads.v8.common";
option objc_class_prefix = "GAA";
option php_namespace = "Google\\Ads\\GoogleAds\\V8\\Common";
option ruby_package = "Google::Ads::GoogleAds::V8::Common";

// Proto file describing frequency caps.

// A rule specifying the maximum number of times an ad (or some set of ads) can
// be shown to a user over a particular time period.
message FrequencyCapEntry {
  // The key of a particular frequency cap. There can be no more
  // than one frequency cap with the same key.
  FrequencyCapKey key = 1;

  // Maximum number of events allowed during the time range by this cap.
  optional int32 cap = 3;
}

// A group of fields used as keys for a frequency cap.
// There can be no more than one frequency cap with the same key.
message FrequencyCapKey {
  // The level on which the cap is to be applied (e.g. ad group ad, ad group).
  // The cap is applied to all the entities of this level.
  google.ads.googleads.v8.enums.FrequencyCapLevelEnum.FrequencyCapLevel level = 1;

  // The type of event that the cap applies to (e.g. impression).
  google.ads.googleads.v8.enums.FrequencyCapEventTypeEnum.FrequencyCapEventType event_type = 3;

  // Unit of time the cap is defined at (e.g. day, week).
  google.ads.googleads.v8.enums.FrequencyCapTimeUnitEnum.FrequencyCapTimeUnit time_unit = 2;

  // Number of time units the cap lasts.
  optional int32 time_length = 5;
}