import { Address, BN } from 'ethereumjs-util';

// Clique Signer State: [blockNumber, signers]
export type CliqueSignerState = [BN, Address[]];
export type CliqueLatestSignerStates = CliqueSignerState[];

// Clique Vote: [blockNumber, [signer, beneficiary, cliqueNonce]]
export type CliqueVote = [BN, [Address, Address, Buffer]];
export type CliqueLatestVotes = CliqueVote[];

// Clique Block Signer: [blockNumber, signer]
export type CliqueBlockSigner = [BN, Address];
export type CliqueLatestBlockSigners = CliqueBlockSigner[];

// Magic nonce number to vote on adding a new signer
export const CLIQUE_NONCE_AUTH = Buffer.from('ffffffffffffffff', 'hex');
// Magic nonce number to vote on removing a signer.
export const CLIQUE_NONCE_DROP = Buffer.alloc(8);