syntax = "proto3";
option optimize_for = LITE_RUNTIME;
option go_package = "git.coopgo.io/coopgo-platform/routing-service/proto/valhalla";
package valhalla;

// Statistics are modelled off of the statsd API

// the type of statistic we are recording
enum StatisticType {
  count = 0;
  gauge = 1;
  timing = 2;
  set = 3;
}

// The key for a statistic regarding the running of the service should be of the form:
// action.worker_name.metric so that we can tell what type of request it was and where in the pipeline it happened

message Statistic {
  string key = 1;          // the key/name of the statistic
  double value = 2;        // the value of the statistic
  float frequency = 3;     // how often to report the statistic [0-1]
  StatisticType type = 4;  // what type is it
}

message CodedDescription {
  string description = 1;
  uint64 code = 2;
}

message Info {
  repeated Statistic statistics = 1;      // stats that we collect during request processing
  repeated CodedDescription errors = 2;   // errors that occured during request processing
  repeated CodedDescription warnings = 3; // warnings that occured during request processing
  bool is_service = 4;                    // was this a service request/response rather than a direct call to the library
}