import { BufferWriter } from '../buffer/BufferWriter';
import { QuorumEntry } from '../deterministicmnlist/QuorumEntry';

/**
 * @param {Buffer|Object|string} [arg] - A Buffer, JSON string, or Object representing a Chainlock
 * @class Chainlock
 * @property {number} height
 * @property {Buffer} blockHash
 * @property {Buffer} signature
 */
export class ChainLock {
  constructor(arg?: Buffer | any | string);

  /**
   * Creates ChainLock from a Buffer.
   * @param {Buffer} buffer - A buffer of the chainLock
   * @return {ChainLock} - An instance of ChainLock
   */
  static fromBuffer(buffer: Buffer): ChainLock;
  /**
   * Creates ChainLock from a hex string.
   * @param {String} string - A hex string representation of the chainLock
   * @return {ChainLock} - An instance of ChainLock
   */
  static fromHex(string: String): ChainLock;
  static fromString(string: String): ChainLock;

  /**
   * Create ChainLock from an object
   * @param {Object} obj - an object with all properties of chainlock
   * @return {ChainLock}
   */
  static fromObject(obj: Object): ChainLock;

  /**
   * Verify that the signature is valid against the Quorum using quorumPublicKey
   * @param {QuorumEntry} quorumEntry - quorum entry to test signature against
   * @returns {Promise<Boolean>} - if the signature is valid for this quorum
   */
  verifySignatureAgainstQuorum(quorumEntry: QuorumEntry): Promise<Boolean>;

  /**
   * Validate Chainlock structure
   */
  validate(): void;

  /**
   * Returns chainLock hash
   * @returns {Buffer}
   */
  getHash(): Buffer;

  /**
   * Computes the request ID for this ChainLock
   * @returns {Buffer} - Request id for this chainlock
   */
  getRequestId(): Buffer;

  /**
   * Computes signature id for a quorum entry
   * @param {QuorumEntry} quorumEntry
   * @returns {Buffer} - Signature id for this requestId and quorum.
   */
  getSignatureIDForQuorumEntry(quorumEntry: QuorumEntry): Buffer;

  /**
   * Serializes chainlock to JSON
   * @returns {Object} A plain object with the chainlock information
   */
  toJSON(): Object;
  toObject(): Object;

  /**
   * Serialize ChainLock
   * @return {string} - A hex encoded string of the chainlock
   */
  toString(): String;

  /**
   * Serialize ChainLock to buffer
   * @return {Buffer}
   */
  toBuffer(): Buffer;

  /**
   * Serialize ChainLock to buffer
   * @param {BufferWriter} [br] - an object with all properties of chainlock
   * @return {BufferWriter}
   */
  toBufferWriter(br?: BufferWriter): BufferWriter;

  /**
   * Creates a copy of ChainLock
   * @return {ChainLock} - a new copy instance of ChainLock
   */
  copy(): ChainLock;

  /**
   * Will return a string formatted for the console
   *
   * @returns {string} ChainLock block hash and height
   */
  inspect(): String;
}