wallet model and test WIP

js/models/wallet.js

@@ -0,0 +1,95 @@
+'use strict';
+var imports = require('soop').imports();
+var bitcore = require('bitcore');
+var BIP32   = bitcore.BIP32;
+
+var Storage = imports.Storage || require('./Storage');
+
+/*
+ * This follow Electrum convetion, as described on
+ * https://bitcointalk.org/index.php?topic=274182.0
+ */
+
+var PUBLIC_BRANCH = 'm/0/';
+var CHANGE_BRANCH = 'm/1/';
+
+function Wallet(opts) {
+  opts = opts || {};
+
+  this.network = opts.network === 'livenet' ? 
+      bitcore.networks.livenet : bitcore.networks.testnet;
+
+  this.neededCosigners = opts.neededCosigners || 3;
+  this.totalCosigners = opts.totalCosigners || 5;
+
+  this.dirty = 1;
+  this.cosignersBIP = [];
+  this.bip32 = new BIP32(opts.bytes ||  this.network.name);
+}
+
+
+
+Wallet.read = function (BIP38password) {
+};
+
+Wallet.prototype.registeredCosigners = function () {
+
+  // 1 is self.
+  return 1 + this.cosignersBIP.length;
+};
+
+Wallet.prototype.getExtendedPrivKey = function (BIP38password) {
+  if (!this.bip32) 
+      throw new Error('no priv key defined on the wallet');
+
+  return this.bip32.extended_private_key_string();
+};
+
+
+Wallet.prototype.getExtendedPubKey = function () {
+  return this.bip32.extended_public_key_string();
+};
+
+
+//  should receive an array also?
+Wallet.prototype.addCosignerExtendedPubKey = function (newEpk) {
+
+  if (this.haveAllNeededPubKeys())
+      throw new Error('already have all needed key:' + this.totalCosigners);
+
+  if (this.getExtendedPubKey() === newEpk)
+    throw new Error('already have that key (self kehy)');
+
+
+  this.cosignersBIP.forEach(function(b){
+    if (b.getExtendedPubKey() === newEpk)
+      throw new Error('already have that key');
+  });
+
+  this.cosignersBIP.push(new Wallet({bytes:newEpk, network: this.network.name } ));
+};
+
+
+Wallet.prototype.haveAllNeededPubKeys = function () {
+  return this.registeredCosigners() === this.totalCosigners;
+};
+
+
+Wallet.prototype.getChangeAddress = function (index) {
+
+  //index can be 0, 1, 2, etc.
+  if (! this.haveAllNeededPubKeys() ) 
+      throw new Error('cosigners pub key missing');
+};
+
+
+Wallet.prototype.store = function () {
+};
+
+
+// Input: Bitcore's Transaction, sign with ownPK
+// return partially signed or fully signed tx
+Wallet.prototype.signTx = function (tx, BIP38password) {
+};
+
+module.exports = require('soop')(Wallet);