syntax = "proto3";

package ncbi.grpcapi.dbsnp.primary_track;

service DbSnpPrimaryTrack {
  /**
   * Return the primary track ID as PrimaryTrackReply that
   * corresponds the specified input sequence ID or GI.
   *
   * The returned GRPC status code is OK if the track is found.
   * Otherwise, the returned status code is NOT_FOUND without
   * any supplemental error description.
   *
   * The status code is INVALID_ARGUMENT if neither sequence ID
   * nor GI can be found in the input message.
   */
  rpc ForSeqId(SeqIdRequestStringAccverUnion) returns (PrimaryTrackReply);
}

/**
 * The SeqId (gi or AccVer) for which the client would like
 * to be told the primary track information.
 */
message SeqIdRequestStringAccverUnion {
  oneof accver_or_gi {
    string accver = 1;
    uint64 gi = 2;
  }
}

/**
 * dbSNP primary track for a particular sequence
 *
 * dbSNP has many annotation tracks for both assembly and non-assembly
 * sequences.  For the requested SeqId, this reply informs the client
 * which track dbSNP treats as primary, and should be used as the
 * general dbSNP annotation track.
 *
 * NB: The reply includes both NA AccVer#filter, a suitable opaque string
 * identifier for interacting with OS Gateway directly, as well as a more
 * general TMS Track ID, if the client wishes to interact with TMS.
 */
message PrimaryTrackReply {
  // The NA Acc.Ver#Filter description of the
  //  primary track
  string na_track_acc_with_filter = 1;

  // The TMS ID for the primary track
  string tms_track_id = 2;
}