/*
 * Copyright (C) 2023 The Android Open Source Project
 *
 * 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 = "proto2";

package android.os.statsd.adservices;

import "frameworks/proto_logging/stats/atoms.proto";
import "frameworks/proto_logging/stats/atom_field_options.proto";

option java_package = "com.android.os.adservices";
option java_multiple_files = true;

extend Atom {
  optional AdServicesBackCompatGetTopicsReported
      ad_services_back_compat_get_topics_reported = 598
        [(module) = "adservices", (truncate_timestamp) = true];

  optional AdServicesBackCompatEpochComputationClassifierReported
      ad_services_back_compat_epoch_computation_classifier_reported = 599
          [(module) = "adservices", (truncate_timestamp) = true];
  optional AdServicesMeasurementDebugKeys
      ad_services_measurement_debug_keys = 640
        [(module) = "adservices", (truncate_timestamp) = true];
  optional AdServicesErrorReported
      ad_services_error_reported = 662
        [(module) = "adservices", (truncate_timestamp) = true];
}

/**
 * Represents a list of topic IDs.
 */
message AdServicesTopicIds {
  repeated int32 topic_id = 1;
}

/**
 * Logs for AdServices GetTopics API call on R+.
 * This atom closely mimics AdServicesGetTopicsReported (for T+ logging) and
 * avoids usage of field types (e.g. repeated) that aren't supported on R/S.
 */
message AdServicesBackCompatGetTopicsReported {
  // See b/266626836 for why topic_ids is not a field yet.

  // Number of filtered duplicate topics.
  optional int32 duplicate_topic_count = 1;

  // Number of filtered blocked topics.
  optional int32 filtered_blocked_topic_count = 2;

  // Number of topic ids returned.
  optional int32 count_of_topic_ids = 3;
}

/**
 * Logs for AdServices Epoch Computation Classifier on R+.
 * One atom should be logged for each app classification.
 * This atom closely mimics AdServicesEpochComputationClassifierReported (for T+ logging)
 * and avoids usage of field types (e.g. repeated) that can't be supported on R/S.
 */
message AdServicesBackCompatEpochComputationClassifierReported {
  // List of topics returned by the classifier for each app. The classification
  // does not depend on the user's usage of the app.
  optional AdServicesTopicIds topic_ids = 1 [(log_mode) = MODE_BYTES];

  // Build id of the assets.
  optional int32 build_id = 2;

  // Version of the assets used.
  optional string asset_version = 3;

  // Type of the classifier used for classifying apps.
  enum ClassifierType {
    /** Unknown classifier option. */
    UNKNOWN_CLASSIFIER = 0;
    /** Only on-device classification. */
    ON_DEVICE_CLASSIFIER = 1;
    /** Only Precomputed classification. */
    PRECOMPUTED_CLASSIFIER = 2;
    /** Precomputed classification values are preferred over on-device classification values. */
    PRECOMPUTED_THEN_ON_DEVICE_CLASSIFIER = 3;
  }
  optional ClassifierType classifier_type = 4;

  // On Device classifier status.
  enum OnDeviceClassifierStatus {
    ON_DEVICE_CLASSIFIER_STATUS_UNSPECIFIED = 0;
    ON_DEVICE_CLASSIFIER_STATUS_NOT_INVOKED = 1;
    ON_DEVICE_CLASSIFIER_STATUS_SUCCESS = 2;
    ON_DEVICE_CLASSIFIER_STATUS_FAILURE = 3;
  }
  optional OnDeviceClassifierStatus on_device_classifier_status = 5;

  // Precomputed classifier status.
  enum PrecomputedClassifierStatus {
    PRECOMPUTED_CLASSIFIER_STATUS_UNSPECIFIED = 0;
    PRECOMPUTED_CLASSIFIER_STATUS_NOT_INVOKED = 1;
    PRECOMPUTED_CLASSIFIER_STATUS_SUCCESS = 2;
    PRECOMPUTED_CLASSIFIER_STATUS_FAILURE = 3;
  }
  optional PrecomputedClassifierStatus precomputed_classifier_status = 6;
}

/**
 * Logs debug keys match state when measurement reports are being generated.
 */
message AdServicesMeasurementDebugKeys {
  enum AttributionType {
    UNKNOWN = 0;
    APP_APP = 1;
    APP_WEB = 2;
    WEB_APP = 3;
    WEB_WEB = 4;
  }

  optional string adtech_enrollment_id = 1;
  optional AttributionType attribution_type = 2;
  optional bool is_matched = 3;
  optional int64 join_key_hash = 4;
  optional int64 join_key_hash_limit = 5;
}

/**
 * Logs AdServices errors/exceptions.
 */
message AdServicesErrorReported {
  // Enum representing an error/exception.  These errors can be common to all
  // PPAPIs or specific to a particular API. We will group enums in blocks of
  // 1000 like this below:
  // - Common errors: 1-1000
  // - Topics errors: 1001-2000
  // - Measurement errors: 2001-3000
  // - Fledge errors: 3001-4000
  // - UX errors: 4001-5000
  enum ErrorCode {
    ERROR_CODE_UNSPECIFIED = 0;
    DATABASE_READ_EXCEPTION = 1;
    DATABASE_WRITE_EXCEPTION = 2;
    API_REMOTE_EXCEPTION = 3;

    // UX errors
    CONSENT_REVOKED_ERROR = 4001;
  }
  // Enum representing an error/exception.
  optional ErrorCode error_code = 1;

  enum PpapiName {
    PPAPI_NAME_UNSPECIFIED = 0;
    TOPICS = 1;
    MEASUREMENT = 2;
    FLEDGE = 3;
  }
  // Name of the PPAPI if possible where error is occurring.
  optional PpapiName ppapi_name = 2;

  // Name of the class where we catch the exception or log the error.
  optional string class_name = 3;

  // Name of the method where we catch the exception or log the error.
  optional string method_name = 4;

  // Line number where we catch the exception or log the error.
  optional int32 line_number = 5;

  // The fully qualified name of the last encountered exception.
  optional string last_observed_exception_name = 6;
}