feat(trade): trade now understands partial txs

lib/plugins.js

@@ -184,10 +184,32 @@ exports.trade = function trade(rawTrade, deviceFingerprint) {
     };
   }
 
+  // record (vel log) inserted bill
+  db.recordBill(deviceFingerprint, rawTrade);
+
+  // cache partial Transaction (if supported by machine)
+  if (rawTrade.partialTx) {
+    var tx = {
+      txId: rawTrade.txId,
+      status: 'partial',
+      toAddress: rawTrade.toAddress,
+      currencyCode: rawTrade.currency,
+      satoshis: rawTrade.partialTx.satoshis,
+      fiat: rawTrade.partialTx.fiat
+    };
+    db.summonTransaction(deviceFingerprint, tx, function(err, txInfo) {
+      logger.debug('plugins|cache|err', err);
+      logger.debug('plugins|cache|info', txInfo);
+    });
+  }
+
+  // add bill to trader queue (if trader is enabled)
+  if (traderPlugin) {
     tradesQueue.push({
       currency: rawTrade.currency,
       satoshis: rawTrade.satoshis
     });
+  }
 };
 
 exports.fiatBalance = function fiatBalance() {
@@ -222,7 +244,7 @@ exports.sendBitcoins = function sendBitcoins(deviceFingerprint, tx, callback) {
   db.summonTransaction(deviceFingerprint, tx, function(err, txInfo) {
     if (err) return callback(err);
 
-    if (!txInfo) {
+    if (!txInfo || txInfo.status === 'partial') {
       clearSession(deviceFingerprint);
 
       return walletPlugin.sendBitcoins(