syntax = "proto3";

package ethereum.beacon.p2p.v1;

import "proto/beacon/p2p/v1/types.proto";
import "proto/eth/v1alpha1/attestation.proto";
import "proto/eth/v1alpha1/beacon_block.proto";
import "google/protobuf/timestamp.proto";

enum Topic {
  UNKNOWN = 0;
  BEACON_BLOCK_ANNOUNCE = 1;
  BEACON_BLOCK_REQUEST = 2;
  BEACON_BLOCK_REQUEST_BY_SLOT_NUMBER = 3;
  BEACON_BLOCK_RESPONSE = 4;
  BATCHED_BEACON_BLOCK_REQUEST = 5;
  BATCHED_BEACON_BLOCK_RESPONSE = 6;
  CHAIN_HEAD_REQUEST = 7;
  CHAIN_HEAD_RESPONSE = 8;
  BEACON_STATE_HASH_ANNOUNCE = 9;
  BEACON_STATE_REQUEST = 10;
  BEACON_STATE_RESPONSE = 11;
  BEACON_ATTESTATION = 12;
}

message Envelope {
  bytes span_context = 1;
  bytes payload = 2;
  google.protobuf.Timestamp timestamp = 3;
}

message BeaconBlockAnnounce {
  bytes hash = 1;
  uint64 slot_number = 2;
}

message BeaconBlockRequest {
  bytes hash = 1;
}

message BeaconBlockRequestBySlotNumber {
  uint64 slot_number = 1;
}

message BeaconBlockResponse {
  ethereum.eth.v1alpha1.BeaconBlock block = 1;
  ethereum.eth.v1alpha1.Attestation attestation = 2;
}

message BatchedBeaconBlockRequest {
  uint64 start_slot = 1 [deprecated=true];
  uint64 end_slot = 2 [deprecated=true];
  bytes finalized_root = 3;
  bytes canonical_root = 4;
}

message BatchedBeaconBlockResponse {
  repeated ethereum.eth.v1alpha1.BeaconBlock batched_blocks = 1;
}

message ChainHeadRequest {}

message ChainHeadResponse {
  uint64 canonical_slot = 1;
  bytes canonical_state_root_hash32 = 2;
  bytes finalized_state_root_hash32s = 3;
  bytes canonical_block_root = 4;
  bytes finalized_block_root = 5;
}

message BeaconStateHashAnnounce {
  bytes hash = 1;
}

message BeaconStateRequest {
  bytes finalized_state_root_hash32s = 1;
}

message BeaconStateResponse {
  BeaconState finalized_state = 1;
  ethereum.eth.v1alpha1.BeaconBlock finalized_block = 2;
}

message FinalizedStateAnnounce {
  bytes block_root = 1;
  bytes state_root = 2;
  uint64 slot = 3;
}

message ProposerSlashingAnnounce {
  bytes hash = 1;
}

message ProposerSlashingRequest {
  bytes hash = 1;
}

message ProposerSlashingResponse {
  bytes hash = 1;
  ethereum.eth.v1alpha1.ProposerSlashing proposer_slashing = 2;
}

message AttesterSlashingAnnounce {
  bytes hash = 1;
}

message AttesterSlashingRequest {
  bytes hash = 1;
}

message AttesterSlashingResponse {
  bytes hash = 1;
  ethereum.eth.v1alpha1.AttesterSlashing Attester_slashing = 2;
}

message DepositAnnounce {
  bytes hash = 1;
}

message DepositRequest {
  bytes hash = 1;
}

message DepositResponse {
  bytes hash = 1;
  ethereum.eth.v1alpha1.Deposit deposit = 2;
}

message ExitAnnounce {
  bytes hash = 1;
}

message ExitRequest {
  bytes hash = 1;
}

message ExitResponse {
  bytes hash = 1;
  ethereum.eth.v1alpha1.VoluntaryExit voluntary_exit = 2;
}

message Handshake {
  string deposit_contract_address = 1;
}