// Copyright 2026 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.v21.services;

import "google/ads/googleads/v21/resources/customer_label.proto";
import "google/api/annotations.proto";
import "google/api/client.proto";
import "google/api/field_behavior.proto";
import "google/api/resource.proto";
import "google/rpc/status.proto";

option csharp_namespace = "Google.Ads.GoogleAds.V21.Services";
option go_package = "google.golang.org/genproto/googleapis/ads/googleads/v21/services;services";
option java_multiple_files = true;
option java_outer_classname = "CustomerLabelServiceProto";
option java_package = "com.google.ads.googleads.v21.services";
option objc_class_prefix = "GAA";
option php_namespace = "Google\\Ads\\GoogleAds\\V21\\Services";
option ruby_package = "Google::Ads::GoogleAds::V21::Services";

// Proto file describing the Customer Label service.

// Service to manage labels on Google Ads customers.
//
// This service is commonly used by manager accounts to apply their own labels
// to their client accounts. The label entity must exist under the manager
// account.
service CustomerLabelService {
  option (google.api.default_host) = "googleads.googleapis.com";
  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/adwords";

  // Creates and removes customer-label relationships.
  // Operation statuses are returned.
  //
  // List of thrown errors:
  //   [AuthenticationError]()
  //   [AuthorizationError]()
  //   [DatabaseError]()
  //   [HeaderError]()
  //   [InternalError]()
  //   [LabelError]()
  //   [MutateError]()
  //   [QuotaError]()
  //   [RequestError]()
  rpc MutateCustomerLabels(MutateCustomerLabelsRequest)
      returns (MutateCustomerLabelsResponse) {
    option (google.api.http) = {
      post: "/v21/customers/{customer_id=*}/customerLabels:mutate"
      body: "*"
    };
    option (google.api.method_signature) = "customer_id,operations";
  }
}

// Request message for
// [CustomerLabelService.MutateCustomerLabels][google.ads.googleads.v21.services.CustomerLabelService.MutateCustomerLabels].
//
// A single `MutateCustomerLabelsRequest` can only modify labels for the single
// customer account specified in the request. To apply a label to multiple
// different accounts, separate `MutateCustomerLabelsRequest` calls must be
// made.
message MutateCustomerLabelsRequest {
  // Required. ID of the customer whose customer-label relationships are being
  // modified.
  string customer_id = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. The list of operations to perform on customer-label
  // relationships.
  repeated CustomerLabelOperation operations = 2
      [(google.api.field_behavior) = REQUIRED];

  // If true, successful operations will be carried out and invalid
  // operations will return errors. If false, all operations will be carried
  // out in one transaction if and only if they are all valid.
  // Default is false.
  bool partial_failure = 3;

  // If true, the request is validated but not executed. Only errors are
  // returned, not results.
  bool validate_only = 4;
}

// A single operation (create, remove) on a customer-label relationship.
message CustomerLabelOperation {
  // The mutate operation.
  oneof operation {
    // Create operation: No resource name is expected for the new customer-label
    // relationship.
    google.ads.googleads.v21.resources.CustomerLabel create = 1;

    // Remove operation: A resource name for the customer-label relationship
    // being removed, in this format:
    //
    // `customers/{customer_id}/customerLabels/{label_id}`
    string remove = 2 [(google.api.resource_reference) = {
      type: "googleads.googleapis.com/CustomerLabel"
    }];
  }
}

// Response message for a customer labels mutate.
message MutateCustomerLabelsResponse {
  // Errors that pertain to operation failures in the partial failure mode.
  // Returned only when partial_failure = true and all errors occur inside the
  // operations. If any errors occur outside the operations (for example, auth
  // errors), we return an RPC level error.
  google.rpc.Status partial_failure_error = 3;

  // All results for the mutate.
  repeated MutateCustomerLabelResult results = 2;
}

// The result for a customer label mutate.
message MutateCustomerLabelResult {
  // Returned for successful operations.
  string resource_name = 1 [(google.api.resource_reference) = {
    type: "googleads.googleapis.com/CustomerLabel"
  }];
}