From 4f249309bb6559385e85df1e838bd74ea123cdf3 Mon Sep 17 00:00:00 2001
From: snogcel <ledniknoj@gmail.com>
Date: Tue, 6 Dec 2016 21:28:17 -0700
Subject: [PATCH] refactor transaction listener

---
 index.html       | 37 +++++++++++++++++----
 js/txListener.js | 83 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 114 insertions(+), 6 deletions(-)
 create mode 100755 js/txListener.js

diff --git a/index.html b/index.html
index 2b4572d..a8e5050 100755
--- a/index.html
+++ b/index.html
@@ -19,22 +19,30 @@
     <link rel="stylesheet" href="css/master.css">
     <script src="js/proposalGenerator.js"></script>
     <script src="js/paymentCycle.js"></script>
+    <script src="js/txListener.js"></script>
     <script src="js/transactionListener.js"></script>
     <script src="js/formHandler.js"></script>
 
-
     <script src="https://dev-test.dash.org/socket.io/socket.io.js"></script>
 
     <script type="text/javascript">
 
         var Bitcore = require('bitcore-lib-dash');
-        var provider = 'https://dev-test.dash.org:3001/';
+        var provider = 'https://dev-test.dash.org/';
+
+        var socket = io(provider);
+
+        socket.on('connect', function() {
+            socket.emit('subscribe', 'inv');
+            console.log("socket.io initialized...");
+        });
 
         $(document).ready(function() {
             var gov = new Bitcore.GovObject.Proposal();
             gov.network = 'testnet';
 
             var paymentCycle = new PaymentCycle(gov);
+
             paymentCycle.updateDropdowns(); // update dropdown menus based on network and current time
 
             $("#time").val(Math.floor((new Date).getTime() / 1000));
@@ -71,8 +79,6 @@
 
                     proposal.walletCommands();
 
-                    transactionListener(proposal);
-
                     $('#btnEdit').click(function() {
                         proposal.createProposal();
                     });
@@ -82,6 +88,25 @@
                     });
                 }
             });
+
+            $('#feeTxid').on('input', function() {
+
+                var transaction = $(this).val();
+                var txListener = new TXListener(socket, provider, transaction);
+
+                // check if tx exists in insight
+                txListener.getTx(function(err, res) {
+                    if(err) console.log(err);
+                    if(res) {
+                        console.log(res);
+                        txListener.blockheight = res.blockheight;
+                        txListener.confirmations = res.confirmations;
+                        txListener.initSocket();
+                    }
+                });
+
+            });
+
         });
     </script>
 
@@ -232,7 +257,7 @@
 
         </div>
 
-        <div class="row walletCommands hidden" id="walletCommandsTx">
+        <div class="row walletCommands" id="walletCommandsTx">
 
             <div class="col-xs-12">
 
@@ -246,7 +271,7 @@
 
         </div>
 
-        <div class="row walletCommands hidden" id="walletCommandsProgress">
+        <div class="row walletCommands" id="walletCommandsProgress">
 
             <div class="col-xs-12">
 
diff --git a/js/txListener.js b/js/txListener.js
new file mode 100755
index 0000000..1f59124
--- /dev/null
+++ b/js/txListener.js
@@ -0,0 +1,83 @@
+function TXListener(socket, provider, transaction) {
+
+    this.socket = socket;
+    this.provider = provider;
+    this.transaction = transaction;
+
+    this.blockheight = null;
+    this.confirmations = null;
+
+}
+
+TXListener.prototype.initSocket = function() {
+    var self = this;
+    var socket = this.socket;
+
+    socket.on('block', function(data) {
+        console.log('block: '+ data);
+
+        self.getBlock(data, function(err, res) {
+
+            if (err) console.log("error fetching block: " + data);
+            self.confirmations = (res.height - self.blockheight) + 1; // compare blockHeight against transaction blockHeight
+
+            console.log('confirmations: ' + self.confirmations);
+
+        });
+    });
+
+};
+
+TXListener.prototype.getTx = function(cb) {
+    var txid = this.transaction;
+
+    var opts = {
+        type: "GET",
+        route: "insight-api-dash/tx/"+txid,
+        data: {
+            format: "json"
+        }
+    };
+
+    this._fetch(opts, cb);
+};
+
+TXListener.prototype.getBlock = function(hash, cb) {
+
+    var opts = {
+        type: "GET",
+        route: "insight-api-dash/block/"+hash,
+        data: {
+            format: "json"
+        }
+    };
+
+    this._fetch(opts, cb);
+};
+
+TXListener.prototype._fetch = function(opts,cb) {
+    var self = this;
+    var provider = opts.provider || self.provider;
+
+    if(opts.type && opts.route && opts.data) {
+
+        jQuery.ajax({
+            type: opts.type,
+            url: provider + opts.route,
+            data: JSON.stringify(opts.data),
+            contentType: "application/json; charset=utf-8",
+            crossDomain: true,
+            dataType: "json",
+            success: function (data, status, jqXHR) {
+                cb(null, data);
+            },
+            error: function (jqXHR, status, error) {
+                var err = eval("(" + jqXHR.responseText + ")");
+                cb(err, null);
+            }
+        });
+
+    } else {
+        cb('missing parameter',null);
+    }
+};
\ No newline at end of file