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 {
  repeated bytes ancestor_hashes = 1;
  uint64 slot = 2;
  bytes randao_reveal = 3;
  bytes pow_chain_ref = 4;
  bytes active_state_root = 5;
  bytes crystallized_state_root = 6;
  google.protobuf.Timestamp timestamp = 7;
  repeated AggregatedAttestation attestations = 8;
  repeated SpecialRecord specials = 9;
}

message CrystallizedStateHashAnnounce {
  bytes hash = 1;
}

message CrystallizedStateRequest {
  bytes hash = 1;
}

message CrystallizedStateResponse {
  CrystallizedState crystallized_state = 1;
}

message CrystallizedState {
  uint64 last_state_recalculation_slot = 1;
  uint64 justified_streak = 2;
  uint64 last_justified_slot = 3;
  uint64 last_finalized_slot = 4;
  uint64 validator_set_change_slot = 5;
  repeated CrosslinkRecord crosslinks = 6;
  repeated ValidatorRecord validators = 7;
  repeated ShardAndCommitteeArray shard_and_committees_for_slots = 8;
  repeated uint32 deposits_penalized_in_period = 9;
  bytes validator_set_delta_hash_chain = 10;
  uint32 pre_fork_version = 11;
  uint32 post_fork_version = 12;
  uint64 fork_slot_number =13;
}

message ShardAndCommitteeArray {
  repeated ShardAndCommittee array_shard_and_committee = 1;
}

message ActiveStateHashAnnounce {
  bytes hash = 1;
}

message ActiveStateRequest {
  bytes hash = 1;
}

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

message ActiveStateResponse {
  ActiveState active_state = 1;
}

message ActiveState {
  repeated AggregatedAttestation pending_attestations = 1;
  repeated bytes recent_block_hashes = 2;
  repeated SpecialRecord pending_specials = 3;
  bytes randao_mix = 4;
}

message ValidatorRecord {
  bytes pubkey = 1;
  uint64 withdrawal_shard = 2;
  bytes withdrawal_address = 3;
  bytes randao_commitment = 4;
  uint64 balance = 5;
  uint64 status = 6;
  uint64 exit_slot = 7;
  uint64 randao_last_change = 8;
}

message AggregatedAttestation {
  uint64 slot = 1;
  uint64 shard = 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 AttestationSignedData {
  uint64 fork_version = 1;
  uint64 slot = 2;
  uint64 shard = 3;
  repeated bytes parent_hashes = 4;
  bytes shard_block_hash = 5;
  uint64 justified_slot = 6;
}

message CrosslinkRecord {
  bool recently_changed = 1;
  bytes shard_block_hash = 2;
  uint64 slot = 3;
}

message AttestationHashes {
  repeated bytes attestation_hash = 1;
}

message SpecialRecord {
    uint32 kind = 1;
    repeated bytes data = 2;
}