meh add some stat shit not even close yet

lb/dash.js

@@ -0,0 +1,71 @@
+
+
+Highcharts.setOptions({
+    global: {
+        useUTC: false
+    }
+});
+
+// Create the chart
+Highcharts.stockChart('container', {
+    chart: {
+        events: {
+            load: function () {
+
+                // set up the updating of the chart each second
+                var series = this.series[0];
+                setInterval(function () {
+                    //var x = (new Date()).getTime(), // current time
+                        //y = Math.round(Math.random() * 100);
+                    //series.addPoint([x, y], true, true);
+
+                  series.addPoint([x, y], true, true);
+
+                }, 1000);
+            }
+        }
+    },
+
+    rangeSelector: {
+        buttons: [{
+            count: 1,
+            type: 'minute',
+            text: '1M'
+        }, {
+            count: 5,
+            type: 'minute',
+            text: '5M'
+        }, {
+            type: 'all',
+            text: 'All'
+        }],
+        inputEnabled: false,
+        selected: 0
+    },
+
+    title: {
+        text: 'Live random data'
+    },
+
+    exporting: {
+        enabled: false
+    },
+
+    series: [{
+        name: 'Random data',
+        data: (function () {
+            // generate an array of random data
+            var data = [],
+                time = (new Date()).getTime(),
+                i;
+
+            for (i = -999; i <= 0; i += 1) {
+                data.push([
+                    time + i * 1000,
+                    Math.round(Math.random() * 100)
+                ]);
+            }
+            return data;
+        }())
+    }]
+});

lb/lb.go

@@ -80,8 +80,9 @@ type chProxy struct {
 	hcUnhealthy int64
 	hcTimeout   time.Duration
 
-	statMu sync.Mutex
-	stats  []*stat
+	// XXX (reed): right now this only supports one client basically ;) use some real stat backend
+	statsMu sync.Mutex
+	stats   []*stat
 
 	proxy      *httputil.ReverseProxy
 	httpClient *http.Client
@@ -95,6 +96,21 @@ type stat struct {
 	code    uint64
 }
 
+func (ch *chProxy) addStat(s *stat) {
+	ch.statsMu.Lock()
+	ch.stats = append(ch.stats, s)
+	ch.statsMu.Unlock()
+}
+
+func (ch *chProxy) getStats() []*stat {
+	ch.statsMu.Lock()
+	stats := ch.stats
+	ch.stats = ch.stats[:0]
+	ch.statsMu.Unlock()
+
+	// XXX (reed): down sample to per second
+}
+
 func newProxy(conf config) *chProxy {
 	tranny := &http.Transport{
 		Proxy: http.ProxyFromEnvironment,
@@ -319,6 +335,15 @@ func (ch *chProxy) listNodes(w http.ResponseWriter, r *http.Request) {
 	})
 }
 
+func (ch *chProxy) dash(w http.ResponseWriter, r *http.Request) {
+	_ = `
+	<script src="https://code.highcharts.com/stock/highstock.js"></script>
+	<script src="https://code.highcharts.com/stock/modules/exporting.js"></script>
+
+	<div id="container" style="height: 400px; min-width: 310px"></div>
+	`
+}
+
 func (ch *chProxy) isDead(node string) bool {
 	ch.RLock()
 	val, ok := ch.ded[node]