'use strict';

var _ = require('lodash');
var Bitcore = require('bitcore');
var HDPublicKey = Bitcore.HDPublicKey;

var VERSION = '1.0.0';
var MESSAGE_SIGNING_PATH = "m/1/0";

function Copayer(opts) {
  opts = opts || {};

  this.version = VERSION;
  this.createdOn = Math.floor(Date.now() / 1000);
  this.id = opts.id;
  this.name = opts.name;
  this.xPubKey = opts.xPubKey;
  this.xPubKeySignature = opts.xPubKeySignature;  // So third parties can check independently
  this.signingPubKey = opts.signingPubKey || this.getSigningPubKey();
};

Copayer.prototype.getSigningPubKey = function () {
  if (!this.xPubKey) return null;
  return HDPublicKey.fromString(this.xPubKey).derive(MESSAGE_SIGNING_PATH).publicKey.toString();
};

Copayer.prototype.addAddress = function (isChange) {
  if (isChange) {
    this.changeAddressIndex++;
  } else {
    this.receiveAddressIndex++;
  }
};


Copayer.prototype.getCurrentAddressPath = function (isChange) {
  return 
};

Copayer.prototype.getNewAddressPath = function (isChange) {
  this.addAddress(isChange);
  return this.currentAddressPath(isChange);
};

Copayer.fromObj = function (obj) {
  var x = new Copayer();

  x.createdOn = obj.createdOn;
  x.id = obj.id;
  x.name = obj.name;
  x.xPubKey = obj.xPubKey;
  x.xPubKeySignature = obj.xPubKeySignature;
  x.signingPubKey = obj.signingPubKey;
};


module.exports = Copayer;