Add status to node page

lib/nunjuck-filters.js

@@ -2,6 +2,27 @@ const prettyBytes = require('pretty-bytes');
 const moment      = require('moment');
 const querystring = require('querystring');
 
+function humanTimeAgo(utcDate) {
+  const diff = moment.utc().diff(moment.utc(utcDate));
+  const uptime = {};
+
+  uptime.s = Math.round(diff / 1000);
+  uptime.m = Math.floor(uptime.s / 60);
+  uptime.h = Math.floor(uptime.m / 60);
+  uptime.d = Math.floor(uptime.h / 24);
+
+  uptime.s %= 60;
+  uptime.m %= 60;
+  uptime.h %= 24;
+
+  let readableUptime = '';
+  readableUptime += uptime.d ? ` ${uptime.d}d` : '';
+  readableUptime += uptime.h ? ` ${uptime.h}h` : '';
+  readableUptime += !uptime.d || !uptime.h && uptime.m ? ` ${uptime.m}m` : '';
+
+  return readableUptime.trim();
+}
+
 const filters = {
   bandwidth: node => `${prettyBytes(node.advertised_bandwidth)}/s`,
   uptime: node => {
@@ -12,25 +33,7 @@ const filters = {
     }
 
     // Check uptime
-    const lastRestarted = moment.utc(node.last_restarted);
-    const diff = moment.utc().diff(lastRestarted);
-    const uptime = {};
-
-    uptime.s = Math.round(diff / 1000);
-    uptime.m = Math.floor(uptime.s / 60);
-    uptime.h = Math.floor(uptime.m / 60);
-    uptime.d = Math.floor(uptime.h / 24);
-
-    uptime.s %= 60;
-    uptime.m %= 60;
-    uptime.h %= 24;
-
-    let readableUptime = '';
-    readableUptime += uptime.d ? ` ${uptime.d}d` : '';
-    readableUptime += uptime.h ? ` ${uptime.h}h` : '';
-    readableUptime += !uptime.d || !uptime.h && uptime.m ? ` ${uptime.m}m` : '';
-
-    return readableUptime.trim();
+    return humanTimeAgo(node.last_restarted);
   },
   pagination: (req, direction) => {
 
@@ -52,7 +55,10 @@ const filters = {
   },
   name: node => node.nickname
     || node.fingerprint && node.fingerprint.slice(0, 8)
-    || node.hashed_fingerprint && node.hashed_fingerprint.slice(0, 8)
+    || node.hashed_fingerprint && node.hashed_fingerprint.slice(0, 8),
+  status: node => node.running ?
+    `Up for ${humanTimeAgo(node.last_restarted)}` :
+    `Down for ${humanTimeAgo(node.last_seen)}`
 };
 
 module.exports = app => Object.keys(filters).forEach(filter => {

views/node.html

@@ -6,6 +6,11 @@
     <h2>{{ 'Invalid node' if error.statusCode == 400 else error.statusMessage }}</h2>
   {% else %}
     <h2>{{ node.type | title }}: {{ node | name }}</h2>
+
+    <section class="status">
+      <h3>Status</h3>
+      {{ node | status }}
+    </section>
   {% endif %}
 
 {% endblock %}