add simple HTML & text representations

app.js

@@ -0,0 +1,116 @@
+// Copyright 2013 Sami Samhuri
+
+var express = require('express')
+  , Negotiator = require('negotiator')
+  , kwikemon = require('./kwikemon.js')
+  , app = module.exports = express()
+  , version = require('./version.js')
+  ;
+
+// Middleware
+app.use(express.favicon('/dev/null'));
+app.use(express.logger());
+app.use(express.static(__dirname + '/public'));
+
+// Views
+app.set('view engine', 'jade');
+app.set('views', __dirname + '/views');
+
+// Routes
+app.get('/', route('monitors', getMonitors));
+app.get('/:name', route('monitor', getMonitor));
+
+function route(template, buildContext) {
+  return function(req, res) {
+    buildContext(req, res, function(err, ctx) {
+      if (err) {
+        var message = err.message || String(err)
+          , status = message == 'not found' ? 404 : 500
+          ;
+        res.format({
+          html: function() {
+            res.render('error', {
+              version: version,
+              pageTitle: 'Error',
+              err: err
+            });
+          },
+          text: function() {
+            res.send(renderText('error', { err: err }));
+          },
+          json: function() {
+            res.json({ message: message });
+          }
+        });
+      }
+      else {
+        ctx = ctx || {};
+        res.format({
+          html: function() {
+            ctx.version = version;
+            res.render(template, ctx);
+          },
+          text: function() {
+            res.send(renderText(template, ctx));
+          },
+          json: function() {
+            res.json(ctx);
+          }
+        });
+      }
+    });
+  };
+}
+
+// Rendering
+
+function renderText(template, ctx) {
+  var text;
+  switch (template) {
+  case 'monitor':
+    text = String(ctx.monitor.text);
+    break;
+
+  case 'monitors':
+    text = Object.keys(ctx.monitors).sort().map(function(name) {
+      return name + ': ' + ctx.monitors[name].text;
+    }).join('\n');
+    break;
+
+  case 'error':
+    text = ctx.err.message || String(ctx.err);
+    break;
+
+  default:
+    throw new Error('unknown text template: ' + template);
+  }
+  return text;
+}
+
+
+//////////////////////
+// Request handlers //
+//////////////////////
+
+function getMonitors(req, res, cb) {
+  kwikemon.getAll(function(err, monitors) {
+    cb(err, err ? null : {
+      pageTitle: 'Monitors',
+      monitors: monitors
+    });
+  });
+}
+
+function getMonitor(req, res, cb) {
+  var name = req.params.name;
+  kwikemon.get(name, function(err, mon) {
+    if (!mon) {
+      err = new Error('not found');
+    }
+    cb(err, err ? null : {
+      pageTitle: mon.name,
+      monitor: mon
+    });
+  });
+}
+

bin/kwikemond

@@ -1,8 +1,9 @@
 #!/usr/bin/env node
 
-var server = require('../server.js')
-  , port = process.argv[2]
-  , host = process.argv[3]
+var port = process.argv[2] || 1111
+  , host = process.argv[3] || '127.0.0.1'
+  , app = require('../app.js')
   ;
 
-server.start(port, host);
+app.listen(port, host);
+console.log('kwikemond listening on ' + host + ':' + port);

kwikemon.js

@@ -105,7 +105,8 @@ function set(name, text, options, cb) {
     ;
   exists(name, function(err, exists) {
     var fields = {
-          text: text
+          name: name
+        , text: text
         , modified: Date.now()
         }
       , multi = redis().multi()

package.json

@@ -11,8 +11,11 @@
   , "kwikemond": "./bin/kwikemond"
   }
 , "dependencies": {
-    "redis": "0.8.x"
-  , "async": "0.2.x"
+    "async": "0.2.x"
+  , "express": "3.0.x"
+  , "jade": "0.31.x"
+  , "negotiator": "0.2.x"
+  , "redis": "0.8.x"
   , "toml": "0.4.x"
   }
 , "devDependencies": {

public/css/style.css

@@ -0,0 +1,15 @@
+ul#monitors {
+  list-style: none;
+}
+
+li.monitor {
+
+}
+
+#footer {
+  width: 80%;
+  margin: 0.5em auto;
+  padding: 0.3em 1em;
+  text-align: center;
+  border-top: solid 1px #aaa;
+}

server.js

@@ -1,64 +0,0 @@
-// Copyright 2013 Sami Samhuri
-
-module.exports = {
-  create: create
-, start: start
-, stop: stop
-};
-
-var http = require('http')
-  , kwikemon = require('./kwikemon.js')
-  , _server
-  ;
-
-function create() {
-  return http.createServer(handleRequest);
-}
-
-function start(port, host) {
-  port = port || 1111;
-  host = host || '127.0.0.1';
-  _server = create();
-  _server.listen(port, host);
-  console.log('kwikemond listening on ' + host + ':' + port);
-  return _server;
-}
-
-function stop() {
-  _server.close();
-  _server = null;
-}
-
-function handleRequest(req, res) {
-  var name = req.url.replace(/^\//, '')
-    , type = 'html'
-    , m
-    ;
-  if (name == 'favicon.ico') return res.end();
-  if (m = name.match(/\.(json|txt)$/)) {
-    type = m[1];
-    name = name.replace(RegExp('\.' + type + '$'), '');
-  }
-  if (name) {
-    kwikemon.get(name, function(err, text) {
-      if (err) {
-        res.end('error: ' + (err.message || 'unknown'));
-        return;
-      }
-      res.end(text);
-    });
-  }
-  // all
-  else {
-    kwikemon.getAll(function(err, monitors) {
-      if (err) {
-        res.end('error: ' + (err.message || 'unknown'));
-        return;
-      }
-      Object.keys(monitors).sort().forEach(function(name) {
-        res.write(name + ': ' + monitors[name] + '\n');
-      });
-      res.end();
-    });
-  }
-}

version.js

@@ -0,0 +1,3 @@
+// Copyright 2013 Sami Samhuri
+
+module.exports = JSON.parse(require('fs').readFileSync('./package.json')).version;

views/error.jade

@@ -0,0 +1,4 @@
+extends layout
+block content
+  p.
+    error: #{err.message || err}

views/layout.jade

@@ -0,0 +1,13 @@
+doctype 5
+html(lang="en")
+  head
+    title kwikemon
+    link(rel="stylesheet", href="/css/style.css")
+  body
+    block nav
+    block title
+      h1= pageTitle || 'kwikemon'
+    #content
+      block content
+    #footer
+      a(href="https://github.com/samsonjs/kwikemon") kwikemon #{version}

views/monitor.jade

@@ -0,0 +1,5 @@
+extends layout
+block nav
+  p: a(href="/") ← monitors
+block content
+  p= monitor.text

views/monitors.jade

@@ -0,0 +1,5 @@
+extends layout
+block content
+  ul#monitors
+  - each monitor in monitors
+    li.monitor: a(href="/#{monitor.name}") #{monitor.name}: #{monitor.text}