From 6b6e2515110e1de3f1b7c1b014ec7fd0474b8e4e Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Thu, 31 Jul 2014 12:08:21 -0700
Subject: [PATCH] paypro: add fetchPaymentTx, use for form validation. improve
 css selection.

---
 js/directives.js         | 76 ++++++++++++++++++++--------------------
 js/models/core/Wallet.js | 17 +++++++--
 2 files changed, 53 insertions(+), 40 deletions(-)

diff --git a/js/directives.js b/js/directives.js
index 6a78f1338..a4bf133f9 100644
--- a/js/directives.js
+++ b/js/directives.js
@@ -17,59 +17,59 @@ angular.module('copayApp.directives')
             var uri = copay.HDPath.parseBitcoinURI(value);
 
             if (uri && uri.merchant) {
-              var total = bitcore
-                .bignum('1000')
-                .div(config.unitToSatoshi)
-                .toString(10);
+              // XXX This might be unwise, it might be better to
+              // create a tentative TX proposal here.
+              scope.wallet.fetchPaymentTx(uri.merchant, function(err, merchantData) {
+              // scope.wallet.createPaymentTx(uri.merchant, function(ntxid, ca) {
+                // var txp = scope.wallet.txProposals.txps[ntxid];
+                // if (!txp) return;
+                var txp = { merchant: merchantData };
 
-              var amount = angular.element(angular
-                .element(document)
-                .find('form')
-                .find('input')[1]);
-              amount.val(total);
-              amount.attr('disabled', true);
-
-              var tamount = angular.element(angular
-                .element(document)
-                .find('section')
-                .find('p')[1]);
-              tamount.attr('class',
-                tamount.attr('class').replace(' hidden', ''));
-              tamount.text(total
-                + ' (CA: Internet Widgets Pty Ltd. Expires: '
-                + new Date().toISOString()
-                + '): Hi, we\'d like some bitcoin.');
-
-              scope.wallet.createPaymentTx(uri.merchant, function(ntxid, ca) {
-                var txp = scope.wallet.txProposals.txps[ntxid];
-                if (!txp) return;
-
-                var expires = txp.merchant.pr.expires;
+                var expires = new Date(txp.merchant.pr.expires * 1000);
                 var memo = txp.merchant.pr.memo;
                 var payment_url = txp.merchant.pr.payment_url;
                 var total = txp.merchant.total;
 
-                var total = bitcore
-                  .bignum.fromBuffer(txp.merchant.total)
+                if (typeof total === 'string') {
+                  total = bitcore.bignum(total, 10).toBuffer();
+                }
+
+                total = bitcore
+                  .bignum.fromBuffer(total)
                   .div(config.unitToSatoshi)
                   .toString(10);
 
-                var amount = angular.element(angular
-                  .element(document)
-                  .find('form')
-                  .find('input')[1]);
+                // var amount = angular.element(angular
+                //   .element(document)
+                //   .find('form')
+                //   .find('input')[1]);
+
+                var amount = angular.element(
+                  document.querySelector('input#amount'));
                 amount.val(total);
                 amount.attr('disabled', true);
 
-                var tamount = angular.element(angular
-                  .element(document)
-                  .find('section')
-                  .find('p')[1]);
+                // var sendto = angular.element(angular
+                //   .element(document)
+                //   .find('section')
+                //   .find('p')[0]);
+
+                var sendto = angular.element(
+                  document.querySelector('div.send-note > p[ng-class]:first-of-type'));
+                sendto.html(sendto.html() + '<br><b>Server:</b> ' + memo);
+
+                // var tamount = angular.element(angular
+                //   .element(document)
+                //   .find('section')
+                //   .find('p')[1]);
+
+                var tamount = angular.element(
+                  document.querySelector('div.send-note > p[ng-class]:nth-of-type(2)'));
                 tamount.attr('class',
                   tamount.attr('class').replace(' hidden', ''))
                 tamount.text(total + ' (CA: ' + ca
                   + '. Expires: '
-                  + new Date(expires * 1000).toISOString()
+                  + expires.toISOString()
                   + '): ' + memo);
               });
 
diff --git a/js/models/core/Wallet.js b/js/models/core/Wallet.js
index 3d37b9cda..73852c584 100644
--- a/js/models/core/Wallet.js
+++ b/js/models/core/Wallet.js
@@ -898,6 +898,15 @@ Wallet.prototype.createPaymentTx = function(options, cb) {
   });
 };
 
+Wallet.prototype.fetchPaymentTx = function(options, cb) {
+  options = options || {};
+  if (typeof options === 'string') {
+    options = { uri: options };
+  }
+  options.fetch = true;
+  return this.createPaymentTx(options, cb);
+};
+
 Wallet.prototype.receivePaymentRequest = function(options, pr, cb) {
   var self = this;
 
@@ -977,9 +986,13 @@ Wallet.prototype.receivePaymentRequest = function(options, pr, cb) {
       ca: ca,
     },
     request_url: options.uri || options.url,
-    total: bignum('0').toString(10)
+    total: bignum('0', 10).toString(10)
   };
 
+  if (options.fetch) {
+    return cb(null, merchantData);
+  }
+
   return this.getUnspent(function(err, unspent) {
     var ntxid = self.createPaymentTxSync(options, merchantData, unspent);
     if (ntxid) {
@@ -1019,7 +1032,7 @@ Wallet.prototype.sendPaymentTx = function(ntxid, options, cb) {
     || self.publicKeyRing.getPubKeys(0, false, this.getMyCopayerId())[0];
 
   if (options.refund_to) {
-    var total = bignum('0');
+    var total = bignum('0', 10);
     for (var i = 0; i < tx.outs.length - 1; i++) {
       total = total.add(bignum.fromBuffer(tx.outs[i].v));
     }