edition = "2023";

package milotic_hft;

import "identifier.proto";

message SubscriptionPolicy {
  enum ConfigurationType {
    CONFIGURATION_TYPE_UNSPECIFIED = 0;
    CONFIGURATION_TYPE_CONFIGURE_ALL_RESOURCES = 1;
    CONFIGURATION_TYPE_CONFIGURE_SPECIFIC_RESOURCES = 2;
  }

  enum ResourceType {
    RESOURCE_TYPE_UNSPECIFIED = 0;
    RESOURCE_TYPE_SENSOR = 1;
    RESOURCE_TYPE_FRU = 2;
  }
  ConfigurationType configuration_type = 1;
  ResourceType resource_type = 2;
}

message SubscriptionParams {
  // The interval between two consecutive batches of readings.
  // If not set, the default sampling interval is implementation defined.
  int32 sampling_interval_ms = 1;

  // The interval between two consecutive batches of readings.
  //
  // Note: We purposely avoid using batch_size as a way to control the export
  // interval. This is because different data sources may have different
  // collection mechanics and if we need to batch data across multiple data
  // sources, we would need a complex synchronization mechanism to ensure that
  // the batches are exported at the same time.
  //
  // With the export interval, we can simply wait for the specified amount of
  // time between two consecutive batch exports and get new data since the last
  // export.
  int32 export_interval_ms = 2;

  // The number of batches to export before cancelling the subscription.
  // If not set, the subscription will continue until explicitly cancelled.
  int32 num_batches = 3;

  // The identifiers of the resources to subscribe to.
  repeated Identifier identifiers = 4;
  SubscriptionPolicy subscription_policy = 5;
}