/*
 * Copyright (C) 2021 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.
 */

// Partial clone of packages/modules/StatsD/statsd/src/statsd_config.proto. The service only
// uses some parameters when configuring StatsD.

syntax = "proto2";

package android.car.telemetry;

option java_package = "com.android.car.telemetry";
option java_outer_classname = "StatsdConfigProto";

enum TimeUnit {
  TIME_UNIT_UNSPECIFIED = 0;
  FIVE_MINUTES = 2;
  TEN_MINUTES = 3;
  THIRTY_MINUTES = 4;
  ONE_HOUR = 5;
  reserved 1, 6, 7, 8, 9, 10, 1000;
}

message FieldMatcher {
  optional int32 field = 1;

  repeated FieldMatcher child = 3;

  reserved 2;
}

message SimpleAtomMatcher {
  optional int32 atom_id = 1;

  reserved 2;
}

message AtomMatcher {
  optional int64 id = 1;

  oneof contents {
    SimpleAtomMatcher simple_atom_matcher = 2;
  }

  reserved 3;
}

message FieldFilter {
  optional bool include_all = 1 [default = false];
  optional FieldMatcher fields = 2;
}

message EventMetric {
  optional int64 id = 1;
  optional int64 what = 2;
  optional int64 condition = 3;

  reserved 4;
  reserved 100;
  reserved 101;
}

message GaugeMetric {
  optional int64 id = 1;

  optional int64 what = 2;

  optional FieldFilter gauge_fields_filter = 3;

  optional int64 condition = 4;

  optional FieldMatcher dimensions_in_what = 5;

  optional TimeUnit bucket = 6;

  enum SamplingType {
    RANDOM_ONE_SAMPLE = 1;
    CONDITION_CHANGE_TO_TRUE = 3;
    FIRST_N_SAMPLES = 4;
    reserved 2;
  }
  optional SamplingType sampling_type = 9 [default = RANDOM_ONE_SAMPLE];

  optional int64 max_num_gauge_atoms_per_bucket = 11 [default = 10];

  optional int32 max_pull_delay_sec = 13 [default = 30];

  reserved 7, 8, 10, 12, 14;
  reserved 100;
  reserved 101;
}

message PullAtomPackages {
  optional int32 atom_id = 1;

  repeated string packages = 2;
}

message SimplePredicate {
  optional int64 start = 1;

  optional int64 stop = 2;

  optional bool count_nesting = 3 [default = true];

  optional int64 stop_all = 4;

  enum InitialValue {
    UNKNOWN = 0;
    FALSE = 1;
  }

  optional InitialValue initial_value = 5;

  optional FieldMatcher dimensions = 6;
}

enum LogicalOperation {
  LOGICAL_OPERATION_UNSPECIFIED = 0;
  AND = 1;
  OR = 2;
  NOT = 3;
  NAND = 4;
  NOR = 5;
}

message Predicate {
  optional int64 id = 1;

  message Combination {
    optional LogicalOperation operation = 1;

    repeated int64 predicate = 2;
  }

  oneof contents {
    SimplePredicate simple_predicate = 2;
    Combination combination = 3;
  }
}

message StatsdConfig {
  optional int64 id = 1;

  repeated EventMetric event_metric = 2;

  repeated GaugeMetric gauge_metric = 5;

  repeated AtomMatcher atom_matcher = 7;

  repeated Predicate predicate = 8;

  repeated string allowed_log_source = 12;

  optional int64 ttl_in_seconds = 15;

  optional bool hash_strings_in_metric_report = 16 [default = true];

  optional bool persist_locally = 20 [default = false];

  repeated PullAtomPackages pull_atom_packages = 23;

  repeated int32 whitelisted_atom_ids = 24;

  reserved 3, 4, 6, 9, 10, 11, 13, 14, 17, 18, 19, 21, 22, 25;

  // Do not use.
  reserved 1000, 1001;
}