// nockchain/common/v2/blockchain.proto

syntax = "proto3";

package nockchain.public.v2;

import "primitives.proto";
import "pagination.proto";
option go_package = "./;nockchain";

message Balance {
  repeated BalanceEntry notes = 1;
  BlockHeight height = 2;
  optional Hash block_id = 3;
  PageResponse page = 4;
}

message BalanceEntry {
  Name name = 1;
  Note note = 2;
}

message RawTransaction {
  NoteVersion version = 1;
  Hash id = 2;
  repeated SpendEntry spends = 3;
}
message SpendEntry {
  Name name = 1;
  Spend spend = 2;
}

message Spend {
  oneof spend_kind {
    LegacySpend legacy = 1;
    WitnessSpend witness = 2;
  }
}

message LegacySpend {
  Signature signature = 1;
  repeated Seed seeds = 2;
  Nicks miner_fee_nicks = 3;
}

message WitnessSpend {
  Witness witness = 1;
  repeated Seed seeds = 2;
  Nicks fee = 3;
}

message Seed {
  // Absent when the seed originates from a coinbase output.
  Source output_source = 1;
  Hash lock_root = 2;
  NoteData note_data = 3;
  Nicks gift = 4;
  Hash parent_hash = 5;
}

message Witness {
  LockMerkleProof lock_merkle_proof = 1;
  PkhSignature pkh_signature = 2;
  repeated HaxPreimage hax = 3;
  //uint64 tim = 4; // reserved field, currently 0
}


message HaxPreimage {
  Hash hash = 1;
  bytes value = 2; // jammed noun bytes
}

message PkhSignature {
  repeated PkhSignatureEntry entries = 1;
}

message PkhSignatureEntry {
  Hash hash = 1;
  SchnorrPubkey pubkey = 2;
  SchnorrSignature signature = 3;
}

message LockMerkleProof {
  SpendCondition spend_condition = 1;
  uint64 axis = 2;
  MerkleProof proof = 3;
}

message SpendCondition {
  repeated LockPrimitive primitives = 1;
}

message LockPrimitive {
  oneof primitive {
    PkhLock pkh = 1;
    LockTim tim = 2;
    HaxLock hax = 3;
    BurnLock burn = 4;
  }
}

message PkhLock {
  uint64 m = 1;
  repeated Hash hashes = 2;
}

message LockTim {
  TimeLockRangeRelative rel = 1;
  TimeLockRangeAbsolute abs = 2;
}

message HaxLock {
  repeated Hash hashes = 1;
}

message BurnLock {}

message MerkleProof {
  Hash root = 1;
  repeated Hash path = 2;
}

message OutputSource { optional Source source = 1; }

message Source {
  Hash hash = 1;
  bool coinbase = 2;
}

message TimeLockIntent {
  oneof value {
    TimeLockRangeAbsolute absolute = 1;
    TimeLockRangeRelative relative = 2;
    TimeLockRangeAbsoluteAndRelative absolute_and_relative = 3;
  }
}

message TimeLockRangeAbsoluteAndRelative {
  optional TimeLockRangeAbsolute absolute = 1;
  optional TimeLockRangeRelative relative = 2;
}

// min and max are absolute origin page numbers
message TimeLockRangeAbsolute {
  optional BlockHeight min = 1;
  optional BlockHeight max = 2;
}

// min and max are relative to the note's creation page
message TimeLockRangeRelative {
  optional BlockHeightDelta min = 1;
  optional BlockHeightDelta max = 2;
}

// ===================================================================
// Wallet Domain Types: UTXO (nnote), Lock, and Signature (multisig)
// ===================================================================

message Lock {
  uint32 keys_required = 1; // threshold of keys required to spend the note
  // DEPRECATED: repeated string schnorr_pubkeys_b58 = 2;
  repeated SchnorrPubkey schnorr_pubkeys =
      2; // schnorr pubkeys (curve: cheetah)
}

message Name {
  // First is the hash of whether the note has a timelock and the lock
  Hash first = 1;
  // Last is the hash of the actual timelock and the source
  Hash last = 2;
}


message Note {
  oneof note_version {
    NoteV0 legacy = 1;
    NoteV1 v1 = 2;
  }
}
message NoteV0 {
  BlockHeight origin_page = 1;          // page-number when added to balance
  optional TimeLockIntent timelock = 2; // enforced timelock
  Name name = 3;                        // nname (human/name label)
  Lock lock = 4;                        // spending condition
  Source source = 5;                    // provenance commitment
  Nicks assets = 6;                     // coin amount (nicks)
  NoteVersion version = 7;              // note version (currently 0)
}

message NoteV1 {
  NoteVersion version = 1;
  BlockHeight origin_page = 2;
  Name name = 3;
  NoteData note_data = 4;
  Nicks assets = 5;
}

message NoteData {
  repeated NoteDataEntry entries = 1;
}

message NoteDataEntry {
  string key = 1;
  bytes blob = 2; // jammed noun bytes
}

message Signature { repeated SignatureEntry entries = 1; }

message SignatureEntry {
  SchnorrPubkey schnorr_pubkey = 1; // serialized pubkey corresponding to the signer
  SchnorrSignature signature = 2;
}

message SchnorrSignature {
  EightBelt chal = 1;
  EightBelt sig = 2;
}