// 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.cloud.retail.v2alpha;

import "google/api/field_behavior.proto";

option csharp_namespace = "Google.Cloud.Retail.V2Alpha";
option go_package = "cloud.google.com/go/retail/apiv2alpha/retailpb;retailpb";
option java_multiple_files = true;
option java_outer_classname = "SafetyProto";
option java_package = "com.google.cloud.retail.v2alpha";
option objc_class_prefix = "RETAIL";
option php_namespace = "Google\\Cloud\\Retail\\V2alpha";
option ruby_package = "Google::Cloud::Retail::V2alpha";

// Harm categories that will block the content.
enum HarmCategory {
  // The harm category is unspecified.
  HARM_CATEGORY_UNSPECIFIED = 0;

  // The harm category is hate speech.
  HARM_CATEGORY_HATE_SPEECH = 1;

  // The harm category is dangerous content.
  HARM_CATEGORY_DANGEROUS_CONTENT = 2;

  // The harm category is harassment.
  HARM_CATEGORY_HARASSMENT = 3;

  // The harm category is sexually explicit content.
  HARM_CATEGORY_SEXUALLY_EXPLICIT = 4;

  // The harm category is civic integrity.
  HARM_CATEGORY_CIVIC_INTEGRITY = 5;
}

// Safety settings.
message SafetySetting {
  // Probability based thresholds levels for blocking.
  enum HarmBlockThreshold {
    // Unspecified harm block threshold.
    HARM_BLOCK_THRESHOLD_UNSPECIFIED = 0;

    // Block low threshold and above (i.e. block more).
    BLOCK_LOW_AND_ABOVE = 1;

    // Block medium threshold and above.
    BLOCK_MEDIUM_AND_ABOVE = 2;

    // Block only high threshold (i.e. block less).
    BLOCK_ONLY_HIGH = 3;

    // Block none.
    BLOCK_NONE = 4;

    // Turn off the safety filter.
    OFF = 5;
  }

  // Probability vs severity.
  enum HarmBlockMethod {
    // The harm block method is unspecified.
    HARM_BLOCK_METHOD_UNSPECIFIED = 0;

    // The harm block method uses both probability and severity scores.
    SEVERITY = 1;

    // The harm block method uses the probability score.
    PROBABILITY = 2;
  }

  // Harm category.
  HarmCategory category = 1;

  // The harm block threshold.
  HarmBlockThreshold threshold = 2;

  // Optional. Specify if the threshold is used for probability or severity
  // score. If not specified, the threshold is used for probability score.
  HarmBlockMethod method = 3 [(google.api.field_behavior) = OPTIONAL];
}
