From 919248ee12a1c56fecdc701c458ca82ab6de762c Mon Sep 17 00:00:00 2001
From: Sammy Libre <sammy007@users.noreply.github.com>
Date: Mon, 27 Mar 2017 03:54:04 +0500
Subject: [PATCH] Add blocks stats

---
 go-pool/stratum/api.go     | 28 +++++++++++++++++--
 go-pool/stratum/miner.go   |  2 +-
 go-pool/stratum/stratum.go | 10 +++++--
 www/index.html             | 45 ++++++++++++++++++++++++++++++
 www/script.js              | 57 +++++++++++++++++++++++++++++++-------
 www/style.css              |  4 +++
 6 files changed, 131 insertions(+), 15 deletions(-)

diff --git a/go-pool/stratum/api.go b/go-pool/stratum/api.go
index e2e01c9..4fc8640 100644
--- a/go-pool/stratum/api.go
+++ b/go-pool/stratum/api.go
@@ -36,6 +36,7 @@ func (s *StratumServer) StatsIndex(w http.ResponseWriter, r *http.Request) {
 	stats["upstreams"] = upstreams
 	stats["current"] = convertUpstream(s.rpc())
 	stats["luck"] = s.getLuckStats()
+	stats["blocks"] = s.getBlocksStats()
 
 	if t := s.currentBlockTemplate(); t != nil {
 		stats["height"] = t.height
@@ -115,11 +116,11 @@ func (s *StratumServer) getLuckStats() map[string]interface{} {
 	for k, v := range s.blockStats {
 		if k >= now-int64(s.luckWindow) {
 			blocksCount++
-			variance += v
+			variance += v.variance
 		}
 		if k >= now-int64(s.luckLargeWindow) {
 			totalBlocksCount++
-			totalVariance += v
+			totalVariance += v.variance
 		} else {
 			delete(s.blockStats, k)
 		}
@@ -139,3 +140,26 @@ func (s *StratumServer) getLuckStats() map[string]interface{} {
 	result["largeWindow"] = s.config.LargeLuckWindow
 	return result
 }
+
+func (s *StratumServer) getBlocksStats() []interface{} {
+	now := util.MakeTimestamp()
+	var result []interface{}
+
+	s.blocksMu.Lock()
+	defer s.blocksMu.Unlock()
+
+	for k, v := range s.blockStats {
+		if k >= now-int64(s.luckLargeWindow) {
+			block := map[string]interface{}{
+				"height":    v.height,
+				"hash":      v.hash,
+				"variance":  v.variance,
+				"timestamp": k,
+			}
+			result = append(result, block)
+		} else {
+			delete(s.blockStats, k)
+		}
+	}
+	return result
+}
diff --git a/go-pool/stratum/miner.go b/go-pool/stratum/miner.go
index c707b9b..c6d1d34 100644
--- a/go-pool/stratum/miner.go
+++ b/go-pool/stratum/miner.go
@@ -183,7 +183,7 @@ func (m *Miner) processShare(s *StratumServer, cs *Session, job *Job, t *BlockTe
 			roundShares := atomic.SwapInt64(&s.roundShares, 0)
 			ratio := float64(roundShares) / float64(t.difficulty)
 			s.blocksMu.Lock()
-			s.blockStats[now] = ratio
+			s.blockStats[now] = blockEntry{height: t.height, hash: blockFastHash, variance: ratio}
 			s.blocksMu.Unlock()
 			atomic.AddUint64(&m.accepts, 1)
 			atomic.AddUint64(&r.Accepts, 1)
diff --git a/go-pool/stratum/stratum.go b/go-pool/stratum/stratum.go
index f91768c..851e92f 100644
--- a/go-pool/stratum/stratum.go
+++ b/go-pool/stratum/stratum.go
@@ -26,7 +26,7 @@ type StratumServer struct {
 	timeout          time.Duration
 	estimationWindow time.Duration
 	blocksMu         sync.RWMutex
-	blockStats       map[int64]float64
+	blockStats       map[int64]blockEntry
 	luckWindow       int64
 	luckLargeWindow  int64
 	roundShares      int64
@@ -34,6 +34,12 @@ type StratumServer struct {
 	sessions         map[*Session]struct{}
 }
 
+type blockEntry struct {
+	height   int64
+	hash     string
+	variance float64
+}
+
 type Endpoint struct {
 	config      *pool.Port
 	instanceId  []byte
@@ -57,7 +63,7 @@ const (
 )
 
 func NewStratum(cfg *pool.Config) *StratumServer {
-	stratum := &StratumServer{config: cfg, blockStats: make(map[int64]float64)}
+	stratum := &StratumServer{config: cfg, blockStats: make(map[int64]blockEntry)}
 
 	stratum.upstreams = make([]*rpc.RPCClient, len(cfg.Upstream))
 	for i, v := range cfg.Upstream {
diff --git a/www/index.html b/www/index.html
index ad48809..c8af618 100644
--- a/www/index.html
+++ b/www/index.html
@@ -146,9 +146,54 @@
         </div>
       </div>
     </script>
+    <script id="blocks-template" type="text/x-handlebars-template">
+      <div class="row marketing">
+        <div class="col-xs-12">
+          <p>
+            <strong>Blocks {{luck.window}}:</strong> <span class="label label-primary">{{formatNumber luck.blocksCount}}</span>
+            <strong>Shares/Diff {{luck.window}}:</strong>
+            <span class="label label-primary">{{formatNumber luck.variance style="percent" minimumFractionDigits=2 maximumFractionDigits=2}}</span>
+            <strong>Blocks {{luck.largeWindow}}:</strong> <span class="label label-primary">{{formatNumber luck.totalBlocksCount}}</span>
+            <strong>Shares/Diff {{luck.largeWindow}}:</strong>
+            <span class="label label-primary">{{formatNumber luck.totalVariance style="percent" minimumFractionDigits=2 maximumFractionDigits=2}}</span>
+            {{#if template}}
+            <strong>Round Progress:</strong>
+            <span class="label label-primary">{{formatNumber variance style="percent" minimumFractionDigits=2 maximumFractionDigits=2}}</span>
+            {{/if}}
+          </p>
+        </div>
+        <div id="blocks" class="col-xs-12">
+          <h4>Blocks</h4>
+          <div class="table-responsive">
+            <table class="table table-condensed table-striped">
+              <tr>
+                <th>Height</th>
+                <th>Time</th>
+                <th>Hash</th>
+                <th>Shares/Diff</th>
+              </tr>
+              {{#each blocks}}
+              <tr>
+                <td>{{formatNumber height}}</td>
+                <td>{{formatDate timestamp year="numeric" month="numeric" day="numeric" hour="numeric" minute="numeric"}}</td>
+                <td class="hash">{{hash}}</td>
+                <td>{{formatNumber variance style="percent" minimumFractionDigits=2 maximumFractionDigits=2}}</td>
+              </tr>
+              {{/each}}
+            </table>
+          </div>
+        </div>
+      </div>
+    </script>
 
     <div class="container">
       <div class="header clearfix">
+        <nav>
+          <ul class="nav nav-pills pull-right">
+            <li role="presentation"><a href="#" id="homeTab">Home</a></li>
+            <li role="presentation"><a href="#blocks" id="blocksTab">Blocks</a></li>
+          </ul>
+        </nav>
         <h3 class="text-muted">MoneroProxy</h3>
       </div>
       <div id="alert" class="alert alert-danger hide" role="alert">
diff --git a/www/script.js b/www/script.js
index b7a5382..8559d2a 100644
--- a/www/script.js
+++ b/www/script.js
@@ -1,38 +1,75 @@
 HandlebarsIntl.registerWith(Handlebars);
 
 $(function() {
-	window.state = {};
+	switch (location.hash) {
+	case '#blocks':
+		window.homeTab = false;
+		break;
+	default:
+		window.homeTab = true;
+	}
 	var userLang = (navigator.language || navigator.userLanguage) || 'en-US';
 	window.intlData = { locales: userLang };
-	var source = $("#stats-template").html();
-	var template = Handlebars.compile(source);
-	refreshStats(template);
+	var statsSource = $("#stats-template").html();
+	var statsTemplate = Handlebars.compile(statsSource);
+	var blocksSource = $("#blocks-template").html();
+	var blocksTemplate = Handlebars.compile(blocksSource);
+	refreshStats(statsTemplate, blocksTemplate);
 
+	$('#homeTab').on('click', function() {
+		window.homeTab = true;
+		refreshStats(statsTemplate, blocksTemplate);
+	});
+	$('#blocksTab').on('click', function() {
+		window.homeTab = false;
+		refreshStats(statsTemplate, blocksTemplate);
+	});
 	setInterval(function() {
-		refreshStats(template);
+		refreshStats(statsTemplate, blocksTemplate);
 	}, 5000)
 });
 
-function refreshStats(template) {
+function refreshStats(statsTemplate, blocksTemplate) {
 	$.getJSON("/stats", function(stats) {
 		$("#alert").addClass('hide');
 
 		// Sort miners by ID
 		if (stats.miners) {
-			stats.miners = stats.miners.sort(compare)
+			stats.miners = stats.miners.sort(compareMiners);
+		}
+		// Reverse sort blocks by height
+		if (stats.blocks) {
+			stats.blocks = stats.blocks.sort(compareBlocks);
+		}
+
+		var html = null;
+		$('.nav-pills > li').removeClass('active');
+
+		if (window.homeTab) {
+			html = statsTemplate(stats, { data: { intl: window.intlData } });
+			$('.nav-pills > li > #homeTab').parent().addClass('active');
+		} else {
+			html = blocksTemplate(stats, { data: { intl: window.intlData } });
+			$('.nav-pills > li > #blocksTab').parent().addClass('active');
 		}
-		// Repaint stats
-		var html = template(stats, { data: { intl: window.intlData } });
 		$('#stats').html(html);
 	}).fail(function() {
 		$("#alert").removeClass('hide');
 	});
 }
 
-function compare(a, b) {
+function compareMiners(a, b) {
 	if (a.name < b.name)
 		return -1;
 	if (a.name > b.name)
 		return 1;
 	return 0;
 }
+
+function compareBlocks(a, b) {
+	if (a.height > b.height)
+		return -1;
+	if (a.height < b.height)
+		return 1;
+	return 0;
+}
diff --git a/www/style.css b/www/style.css
index 72e388d..a3240fb 100644
--- a/www/style.css
+++ b/www/style.css
@@ -42,6 +42,10 @@ span.logo-3 {
   font-weight: 100;
 }
 
+.hash {
+  font-family: 'Inconsolata', monospace;
+}
+
 /* Custom page footer */
 .footer {
   padding-top: 15px;