init sumcoin

currencies/sum.coffee

@@ -0,0 +1,55 @@
+class SUM
+  constructor: ->
+    @ws = null
+    @socketUrl = "wss://insight.sumcore.org/socket.io/?EIO=3&transport=websocket"
+    @txApi = "https://insight.sumcore.org/api/tx/"
+    @blockApi = "https://insight.sumcore.org/api/block/"
+    @txFees = [0.000224, 0.0005]
+    @txFeeTimestamp = 0
+    @txFeeInterval = 3000 # how often to query for a fee
+    @donationAddress = "SX75kbV2to7LCMj2rc9Bb8agpZxAg6rzoL"
+
+  start: (txCb, blockCb) ->
+    @stop() if @ws
+    @ws = new WebSocket @socketUrl
+
+    @ws.onclose = =>
+      setTimeout (=> @start txCb, blockCb), 1000
+
+    @ws.onopen = =>
+      @ws.send '2probe'
+      @ws.send '5'
+      @ws.send '420["subscribe","sync"]'
+      @ws.send '421["subscribe","inv"]'
+      @ws.send '422["subscribe","sync"]'
+      @ws.send '424["subscribe","sync"]'
+      @ws.send '425["subscribe","inv"]'
+      @ping = setInterval (=> @ws.send '2'), 25*1000
+
+    @ws.onmessage = ({data}) =>
+      data = data.match /^\d+(\[.+?)$/
+      if data
+        [type, payload] = JSON.parse(data[1])
+        if type is 'tx'
+          # fetch fees every now and then
+          if new Date().getTime() - @txFeeInterval > @txFeeTimestamp
+            $.get @txApi + payload.txid, ({fees}) =>
+              if fees
+                @txFees.shift()
+                @txFees.push(fees)
+                @txFeeTimestamp = new Date().getTime()
+
+          txCb? {
+            amount: payload.valueOut
+            fee: Math.random() * Math.abs(@txFees[0] - @txFees[1]) + Math.min.apply(0, @txFees)
+            link: 'https://insight.sumcore.org/tx/' + payload.txid
+            donation: !!payload.vout.find (vout) => Object.keys(vout)[0] is @donationAddress
+          }
+        else
+          $.get @blockApi + payload, ({tx}) =>
+            blockCb? count: if tx then tx.length else 0
+
+  stop: ->
+    @ws.close()
+    clearInterval @ping
+    @ws = null

index.html

@@ -56,6 +56,7 @@
     <script type="text/javascript" src="currencies/btc.js"></script>
     <script type="text/javascript" src="currencies/eth.js"></script>
     <script type="text/javascript" src="currencies/ltc.js"></script>
+    <script type="text/javascript" src="currencies/sum.js"></script>
     <script type="text/javascript" src="currencies/nano.js"></script>
     <script type="text/javascript" src="currencies/xrp.js"></script>
     <script type="text/javascript" src="engine.js"></script>
@@ -87,6 +88,14 @@
                 <a class="donate">Donate</a>
             </div>
         </div>
+        <div class="sum">
+            <div class="text">
+                <span class="stats"></span>
+                <a href="https://sumcoin.org" target="_blank" class="label">Sumcoin</a>
+                <span class="price"></span>
+                <a class="donate">Donate</a>
+            </div>
+        </div>
         <div class="ltc">
             <div class="text">
                 <span class="stats"></span>

main.coffee

@@ -13,6 +13,17 @@ currencyFormat =
   minimumFractionDigits: 0
   maximumFractionDigits:0
 
+sumcurrency =
+  sum: new SUM()
+prices = {}
+stats = {}
+
+sumcurrencyFormat =
+  style: 'currency'
+  currency: 'USD'
+  minimumFractionDigits: 0
+  maximumFractionDigits:0
+
 # render TX
 showTx = (engine, currency, tx) ->
   value = tx.amount * (prices[currency] or 1)
@@ -48,8 +59,25 @@ updatePrices = (currencies) ->
     if data
       $(".marketcap").text JSON.parse(data)[0].total_mcap.toLocaleString(undefined, currencyFormat)
 
+setTimeout updatePrices.bind(null, currencies), 10*1000
+
+# get current Sumcoin price
+updatePrices = (sumcurrency) ->
+  sumcurrencyAPI = 'https://rates.slicewallet.org/api/rates'
+  $.get code + price.join(',').toUpperCase(), (data) ->
+    if data
+      for sumcurrency, price of data
+        sumcurrency = sumcurrency.toLowerCase()
+        prices[currency] = Math.round(1/price*100)/100
+        $(".#{sumcurrency} .price").text prices[currency].toLocaleString(undefined, { style: 'currency', sumcurrency: 'USD' })
+
+# get sumcoin marketcap
+  summarketcapAPI = 'https://sumcoinindex.com/rates/marketcap.json'
+  $.get marketcapAPI, (data) ->
+    if data
+      $("marketcap_USD").text JSON.parse(data)[0].total_mcap.toLocaleString(undefined, currencyFormat)
 
-  setTimeout updatePrices.bind(null, currencies), 10*1000
+setTimeout updateSumPrice.bind(null, sumcurrency), 10*1000
 
 # update stats for a currency, called whenever there is a new TX
 # to do that, keep a log of the last 60 seconds of tx

styles.css

@@ -33,7 +33,7 @@ a.label {
 
 div.marketcap {
   position: absolute;
-  bottom: 88px;
+  bottom: 100px;
   left: 50%;
   text-align: center;
   color: #a4d2fd;