syntax = "proto3";

package ethereum.beacon.p2p.v1;

import "google/protobuf/timestamp.proto";

enum Topic {
  UNKNOWN = 0;
  BEACON_BLOCK_HASH_ANNOUNCE = 1;
  BEACON_BLOCK_REQUEST = 2;
  BEACON_BLOCK_REQUEST_BY_SLOT_NUMBER = 3;
  BEACON_BLOCK_RESPONSE = 4;
  CRYSTALLIZED_STATE_HASH_ANNOUNCE = 5;
  CRYSTALLIZED_STATE_REQUEST = 6;
  CRYSTALLIZED_STATE_RESPONSE = 7;
  ACTIVE_STATE_HASH_ANNOUNCE = 8;
  ACTIVE_STATE_REQUEST = 9;
  ACTIVE_STATE_RESPONSE = 10;
}

message BeaconBlockHashAnnounce {
  bytes hash = 1;
}

message BeaconBlockRequest {
  bytes hash = 1;
}

message BeaconBlockRequestBySlotNumber{
  uint64 slot_number = 1;
}

message BeaconBlockResponse {
  BeaconBlock block = 1;
  AggregatedAttestation attestation = 2;
}

message BeaconBlock {
  bytes parent_hash = 1;
  uint64 slot_number = 2;
  bytes randao_reveal = 3;
  bytes pow_chain_ref = 4;
  bytes active_state_hash = 5;
  bytes crystallized_state_hash = 6;
  google.protobuf.Timestamp timestamp = 7;
  repeated AggregatedAttestation attestations = 8;
}

message CrystallizedStateHashAnnounce {
  bytes hash = 1;
}

message CrystallizedStateRequest {
  bytes hash = 1;
}

message CrystallizedStateResponse {
  CrystallizedState crystallized_state = 1;
}

message CrystallizedState {
  uint64 last_state_recalc = 1;
  uint64 justified_streak = 2;
  uint64 last_justified_slot = 3;
  uint64 last_finalized_slot = 4;
  uint64 current_dynasty = 5;
  bytes dynasty_seed = 6;
  uint64 dynasty_start = 7;
  repeated CrosslinkRecord crosslink_records = 8;
  repeated ValidatorRecord validators = 9;
  repeated ShardAndCommitteeArray shard_and_committees_for_slots = 10;
}

message ShardAndCommitteeArray {
  repeated ShardAndCommittee array_shard_and_committee = 1;
}

message ActiveStateHashAnnounce {
  bytes hash = 1;
}

message ActiveStateRequest {
  bytes hash = 1;
}

message ShardAndCommittee {
  uint64 shard_id = 1;
  repeated uint32 committee = 2;
}

message ActiveStateResponse {
  ActiveState active_state = 1;
}

message ActiveState {
  repeated AggregatedAttestation pending_attestations = 1;
  repeated bytes recent_block_hashes = 2;
}

message ValidatorRecord {
  uint64 public_key = 1;
  uint64 withdrawal_shard = 2;
  bytes withdrawal_address = 3;
  bytes randao_commitment = 4;
  uint64 balance = 5;
  uint64 start_dynasty = 6;
  uint64 end_dynasty = 7;
}

message AggregatedAttestation {
  uint64 slot = 1;
  uint64 shard_id = 2;
  uint64 justified_slot = 3;
  bytes justified_block_hash = 4;
  bytes shard_block_hash = 5;
  bytes attester_bitfield = 6;
  repeated bytes oblique_parent_hashes = 7;
  repeated uint64 aggregate_sig = 8;
}

message CrosslinkRecord {
  uint64 dynasty = 1;
  bytes blockhash = 2;
  uint64 slot = 3;
}

message AttestationHashes {
  repeated bytes attestation_hash = 1;
}