From 3582ff32fcde155bd939f5a93d29af2f215b6e6d Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 25 Jul 2014 19:11:57 -0700
Subject: [PATCH] paypro: a more complete example of how to use server outputs.

---
 examples/PayPro/customer.js | 45 +++++++++++++++++++----
 examples/PayPro/server.js   | 71 +++++++++++++++++++------------------
 2 files changed, 75 insertions(+), 41 deletions(-)

diff --git a/examples/PayPro/customer.js b/examples/PayPro/customer.js
index 375f3e37c74..21d4384e5d7 100644
--- a/examples/PayPro/customer.js
+++ b/examples/PayPro/customer.js
@@ -239,7 +239,7 @@ function sendPayment(msg, callback) {
     var pay = new PayPro();
     pay = pay.makePayment();
     pay.set('merchant_data', merchant_data);
-    pay.set('transactions', [createTX()]);
+    pay.set('transactions', [createTX(outputs)]);
     pay.set('refund_to', refund_outputs);
 
     msg = msg || 'Hi server, I would like to give you some money.';
@@ -273,6 +273,19 @@ function sendPayment(msg, callback) {
       var memo = ack.get('memo');
       print('Our payment was acknowledged!');
       print('Message from Merchant: %s', memo);
+      payment = PayPro.Payment.decode(payment);
+      var pay = new PayPro();
+      payment = pay.makePayment(payment);
+      print(payment);
+      var tx = payment.message.transactions[0];
+      if (tx.buffer) {
+        tx.buffer = tx.buffer.slice(tx.offset, tx.limit);
+        var ptx = new bitcore.Transaction();
+        ptx.parse(tx.buffer);
+        tx = ptx;
+      }
+      var txid = tx.getHash().toString('hex');
+      print('First payment txid: %s', txid);
       return callback();
     });
   });
@@ -324,7 +337,7 @@ function parseQS(query) {
   return out;
 }
 
-function createTX() {
+function createTX(outputs) {
   // Addresses
   var addrs = [
     'mzTQ66VKcybz9BD1LAqEwMFp9NrBGS82sY',
@@ -361,10 +374,13 @@ function createTX() {
   ];
 
   // define transaction output
-  var outs = [{
-    address: addrs[2],
-    amount: 0.00003000
-  }];
+  var outs = [];
+  outputs.forEach(function(output) {
+    outs.push({
+      address: addrs[0], // dummy address
+      amount: 0 // dummy value
+    });
+  });
 
   // set change address
   var opts = {
@@ -379,6 +395,23 @@ function createTX() {
     .sign(keys)
     .build();
 
+  outputs.forEach(function(output, i) {
+    var value = output.get('amount');
+    var script = output.get('script');
+    var v = new Buffer(8);
+    v[0] = (value.low >> 0) & 0xff;
+    v[1] = (value.low >> 8) & 0xff;
+    v[2] = (value.low >> 16) & 0xff;
+    v[3] = (value.low >> 24) & 0xff;
+    v[4] = (value.high >> 0) & 0xff;
+    v[5] = (value.high >> 8) & 0xff;
+    v[6] = (value.high >> 16) & 0xff;
+    v[7] = (value.high >> 24) & 0xff;
+    var s = script.buffer.slice(script.offset, script.limit);
+    tx.outs[i].v = v;
+    tx.outs[i].s = s;
+  });
+
   print('');
   print('Customer created transaction:');
   print(tx.getStandardizedObject());
diff --git a/examples/PayPro/server.js b/examples/PayPro/server.js
index cdf233d41ac..12d37024169 100755
--- a/examples/PayPro/server.js
+++ b/examples/PayPro/server.js
@@ -123,41 +123,42 @@ app.post('/-/request', function(req, res, next) {
 
   var outputs = [];
 
-  var po = new PayPro();
-  po = po.makeOutput();
-  // number of satoshis to be paid
-  po.set('amount', 0);
-  // a TxOut script where the payment should be sent. similar to OP_CHECKSIG
-  po.set('script', new Buffer([
-    118, // OP_DUP
-    169, // OP_HASH160
-    76,  // OP_PUSHDATA1
-    20,  // number of bytes
-    0xcf,
-    0xbe,
-    0x41,
-    0xf4,
-    0xa5,
-    0x18,
-    0xed,
-    0xc2,
-    0x5a,
-    0xf7,
-    0x1b,
-    0xaf,
-    0xc7,
-    0x2f,
-    0xb6,
-    0x1b,
-    0xfc,
-    0xfc,
-    0x4f,
-    0xcd,
-    136, // OP_EQUALVERIFY
-    172  // OP_CHECKSIG
-  ]));
-
-  outputs.push(po.message);
+  [2000, 1000].forEach(function(value) {
+    var po = new PayPro();
+    po = po.makeOutput();
+    // number of satoshis to be paid
+    po.set('amount', value);
+    // a TxOut script where the payment should be sent. similar to OP_CHECKSIG
+    po.set('script', new Buffer([
+      118, // OP_DUP
+      169, // OP_HASH160
+      76,  // OP_PUSHDATA1
+      20,  // number of bytes
+      0xcf,
+      0xbe,
+      0x41,
+      0xf4,
+      0xa5,
+      0x18,
+      0xed,
+      0xc2,
+      0x5a,
+      0xf7,
+      0x1b,
+      0xaf,
+      0xc7,
+      0x2f,
+      0xb6,
+      0x1b,
+      0xfc,
+      0xfc,
+      0x4f,
+      0xcd,
+      136, // OP_EQUALVERIFY
+      172  // OP_CHECKSIG
+    ]));
+    outputs.push(po.message);
+  });
 
   /**
    * Payment Details