txproposal basic features and test

js/models/TxProposals.js

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+
+'use strict';
+
+
+var imports     = require('soop').imports();
+var bitcore     = require('bitcore');
+var coinUtil    = bitcore.util;
+var Transaction = bitcore.Transaction;
+var Builder = bitcore.TransactionBuilder;
+var buffertools = bitcore.buffertools;
+
+var Storage     = imports.Storage || require('./Storage');
+var storage     = Storage.default();
+
+/*
+ * This follow Electrum convetion, as described in
+ * https://bitcointalk.org/index.php?topic=274182.0
+ *
+ * We should probably adopt the next standard once it's ready, as discussed in:
+ * http://sourceforge.net/p/bitcoin/mailman/message/32148600/
+ *
+ */
+
+var PUBLIC_BRANCH = 'm/0/';
+var CHANGE_BRANCH = 'm/1/';
+
+function TxProposals(opts) {
+  opts = opts || {};
+
+  this.network = opts.networkName === 'livenet' ? 
+      bitcore.networks.livenet : bitcore.networks.testnet;
+
+  this.publicKeyRing = opts.publicKeyRing;
+  this.requiredCopayers = opts.requiredCopayers || 3;
+  this.txs = [];
+  this.dirty = 1;
+}
+
+
+TxProposals.prototype.list = function() {
+  var ret = [];
+
+  this.txs.forEach(function(tx) {
+  });
+};
+
+TxProposals.prototype.create = function(toAddress, amountSat, utxos, onePrivKey) {
+  var pkr = this.publicKeyRing; 
+
+  if (! pkr.isComplete() ) {
+    throw new Error('publicKeyRing is not complete');
+  }
+
+  var opts = {
+    remainderOut: { address: pkr.generateAddress(true) }
+  };
+
+  var b = new Builder(opts)
+    .setUnspent(utxos)
+    .setHashToScriptMap(pkr.getRedeemScriptMap())
+    .setOutputs([{address: toAddress, amountSat: amountSat}])
+    ;
+
+  if (onePrivKey) {
+    b.sign([onePrivKey]);
+  }
+
+  var tx = b.build();
+  var txHex = tx.serialize();
+  this.txs.push(txHex);    
+  return txHex;
+};
+
+TxProposals.prototype.sign = function(index) {
+};
+
+module.exports = require('soop')(TxProposals);