syntax = "proto3";

package quilibrium.node.token.pb;

option go_package = "source.quilibrium.com/quilibrium/monorepo/node/protobufs";

import "application.proto";
import "keys.proto";

// Token behavior flags
enum TokenIntrinsicBehavior {
  TOKEN_BEHAVIOR_NONE = 0;
  // Token can be minted, decrements total available supply, is no longer
  // mintable once the total supply has been reached
  TOKEN_BEHAVIOR_MINTABLE = 1;
  // Token can be burned, decrements total supply
  TOKEN_BEHAVIOR_BURNABLE = 2;
  // Token has decimal units
  TOKEN_BEHAVIOR_DIVISIBLE = 4;
  // Token has pending transaction flows and must be accepted or rejected
  TOKEN_BEHAVIOR_ACCEPTABLE = 8;
  // Token's pending transaction flows can set expiration limits on the ability
  // for the recipient to accept, after which only the refund address can accept
  TOKEN_BEHAVIOR_EXPIRABLE = 16;
  // Token can be used as a method of payment, for alternative-fee-basis shards
  TOKEN_BEHAVIOR_TENDERABLE = 32;
}

// Mint behavior types
enum TokenMintBehavior {
  // Token cannot be minted
  NO_MINT_BEHAVIOR = 0;
  // Token can only be minted with a proof, ProofBasisType determines the
  // accepted format
  MINT_WITH_PROOF = 1;
  // Token can only be minted by a configuration-defined authority's signature
  MINT_WITH_AUTHORITY = 2;
  // Token can only be minted with a configuration-defined signature
  MINT_WITH_SIGNATURE = 3;
  // Token can only be minted in exchange for a payment
  MINT_WITH_PAYMENT = 4;
}

// Proof basis types
enum ProofBasisType {
  // Token does not accept any proof type for minting
  NO_PROOF_BASIS = 0;
  // Token accepts proof of meaningful work for minting, requires a proof of
  // meaningful work entry for the minter's address in the token's domain
  PROOF_OF_MEANINGFUL_WORK = 1;
  // Token accepts a verkle multiproof as proof
  VERKLE_MULTIPROOF_WITH_SIGNATURE = 2;
}

// Fee basis types
enum FeeBasisType {
  // Token cannot be purchased
  NO_FEE_BASIS = 0;
  // Token has a per-unit fee
  PER_UNIT = 1;
}

// Authority configuration
message Authority {
  // The key type
  uint32 key_type = 1;
  // The public key
  bytes public_key = 2;
  // Authority has the ability to burn any token, provided the token is
  // configured to be burnable
  bool can_burn = 3;
}

// Fee basis configuration
message FeeBasis {
  FeeBasisType type = 1;
  // Big endian encoded value representing the per-unit fee
  bytes baseline = 2;
}

// Token mint strategy
message TokenMintStrategy {
  TokenMintBehavior mint_behavior = 1;
  ProofBasisType proof_basis = 2;
  // If ProofBasis is VerkleMultiproofWithSignature
  bytes verkle_root = 3;
  // If MintWithAuthority or MintWithSignature
  Authority authority = 4;
  // If MintWithPayment
  bytes payment_address = 5;
  // If MintWithPayment
  FeeBasis fee_basis = 6;
}

// Token configuration
message TokenConfiguration {
  // TokenIntrinsicBehavior bit flags
  uint32 behavior = 1;
  // If Mintable is set
  TokenMintStrategy mint_strategy = 2;
  // Big.Int serialized, if Divisible is set
  bytes units = 3;
  // Big.Int serialized, if Mintable is not set
  bytes supply = 4;
  string name = 5;
  string symbol = 6;
  // 64 byte address values
  repeated bytes additional_reference = 7;
  // 585 byte BLS48-581
  bytes owner_public_key = 8;
}

// TokenDeploy creates a new token instance
message TokenDeploy {
  // The token configuration
  TokenConfiguration config = 1;
  // The raw RDF schema definition
  bytes rdf_schema = 2;
}

// TokenUpdate updates an existing token instance
message TokenUpdate {
  // The token configuration
  TokenConfiguration config = 1;
  // The raw RDF schema definition
  bytes rdf_schema = 2;
  // Signature from the owner key
  quilibrium.node.keys.pb.BLS48581AggregateSignature public_key_signature_bls48581 = 3;
}

// Transaction input
message TransactionInput {
  bytes commitment = 1;
  bytes signature = 2;
  repeated bytes proofs = 3;
}

// Transaction output
message TransactionOutput {
  bytes frame_number = 1;
  bytes commitment = 2;
  RecipientBundle recipient_output = 3;
}

// Recipient bundle
message RecipientBundle {
  bytes one_time_key = 1;
  bytes verification_key = 2;
  bytes coin_balance = 3;
  bytes mask = 4;
  // if non-divisible
  bytes additional_reference = 5;
  // if non-divisible
  bytes additional_reference_key = 6;
}

// Transaction for token transfers
message Transaction {
  // 32 bytes
  bytes domain = 1;
  repeated TransactionInput inputs = 2;
  repeated TransactionOutput outputs = 3;
  // Big.Int serialized
  repeated bytes fees = 4;
  bytes range_proof = 5;
  // Optional TraversalProof
  quilibrium.node.application.pb.TraversalProof traversal_proof = 6;
}

// Pending transaction input
message PendingTransactionInput {
  bytes commitment = 1;
  bytes signature = 2;
  repeated bytes proofs = 3;
}

// Pending transaction output
message PendingTransactionOutput {
  bytes frame_number = 1;
  bytes commitment = 2;
  RecipientBundle to = 3;
  RecipientBundle refund = 4;
  // If Expirable is set
  uint64 expiration = 5;
}

// Pending transaction for acceptable tokens
message PendingTransaction {
  // 32 bytes
  bytes domain = 1;
  repeated PendingTransactionInput inputs = 2;
  repeated PendingTransactionOutput outputs = 3;
  // Big.Int serialized
  repeated bytes fees = 4;
  bytes range_proof = 5;
  // Optional TraversalProof
  quilibrium.node.application.pb.TraversalProof traversal_proof = 6;
}

// Mint transaction input
message MintTransactionInput {
  // Big.Int serialized
  bytes value = 1;
  bytes commitment = 2;
  bytes signature = 3;
  repeated bytes proofs = 4;
  bytes additional_reference = 5;
  bytes additional_reference_key = 6;
}

// Mint transaction output
message MintTransactionOutput {
  bytes frame_number = 1;
  bytes commitment = 2;
  RecipientBundle recipient_output = 3;
}

// Mint transaction
message MintTransaction {
  // 32 bytes
  bytes domain = 1;
  repeated MintTransactionInput inputs = 2;
  repeated MintTransactionOutput outputs = 3;
  // Big.Int serialized
  repeated bytes fees = 4;
  bytes range_proof = 5;
}