syntax = "proto3";

package ethereum.beacon.rpc.v1;

import "proto/sharding/p2p/v1/messages.proto";
import "proto/beacon/p2p/v1/messages.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";

service BeaconService {
    rpc LatestBeaconBlock(google.protobuf.Empty) returns (stream ethereum.beacon.p2p.v1.BeaconBlock);
    rpc LatestCrystallizedState(google.protobuf.Empty) returns (stream ethereum.beacon.p2p.v1.CrystallizedState);
    rpc FetchShuffledValidatorIndices(ShuffleRequest) returns (ShuffleResponse);
}

service AttesterService {
    rpc SignBlock(SignRequest) returns (SignResponse);
}

service ProposerService {
    rpc ProposeBlock(ProposeRequest) returns (ProposeResponse);
}

message ShuffleRequest {
  bytes crystallized_state_hash = 1;
}

message ShuffleResponse {
    repeated uint64 shuffled_validator_indices = 1;
    repeated uint64 cutoff_indices = 2;
    repeated uint64 assigned_attestation_slots = 3;
}

message ProposeRequest {
  bytes parent_hash = 1;
  uint64 slot_number = 2;
  bytes randao_reveal = 3;
  bytes attestation_bitmask = 4;
  repeated uint32 attestation_aggregate_sig = 5;
  google.protobuf.Timestamp timestamp = 6;
}

message ProposeResponse {
    bytes block_hash = 1;
}

message SignRequest {
    bytes block_hash = 1;
    ethereum.sharding.p2p.v1.Signature signature = 2;
}

message SignResponse {
    bool signed = 1;
}