import { Hash } from './hash'
import { Buffer } from 'buffer/'

/**
 * Hash with a width of 160 bits
 */
class Hash160 extends Hash {
  static readonly width = 20
  static readonly ZERO_160: Hash160 = new Hash160(Buffer.alloc(Hash160.width))

  constructor(bytes?: Buffer) {
    if (bytes && bytes.byteLength === 0) {
      bytes = Hash160.ZERO_160.bytes
    }

    super(bytes ?? Hash160.ZERO_160.bytes)
  }
}

export { Hash160 }