More development

public/assets/app.css

@@ -69,35 +69,15 @@ header h1 {
   color: white;
 }
 
+header .led {
+  margin-left: 1rem;
+  margin-right: 1rem;
+}
+
 header span {
   font-size: 1.2rem;
 }
 
-header .status {
-  background-color: HSL(0, 0%, 80%);
-  border-radius: 100px;
-  box-shadow: rgba(255, 255, 255, .25) 0px 15px 11px -9px inset, rgba(0, 0, 0, .25) 0px -12px 11px -9px inset, rgba(0, 0, 0, .65) 0 4px 20px;
-  padding: 0.6rem 2rem;
-  text-align: center;
-  text-decoration: none;
-  border: 0;
-  font-size: 1rem;
-  user-select: none;
-  margin: 0 1rem 0 1rem;
-}
-
-header .status.red {
-  background-color: #ff3232;
-  box-shadow: rgba(255, 255, 255, .25) 0px 15px 11px -9px inset, rgba(0, 0, 0, .25) 0px -12px 11px -9px inset, rgba(0, 0, 0, .65) 0 4px 20px, rgba(255, 50, 50, .5) 0 0 15px;
-  color: black;
-}
-
-header .status.green {
-  background-color: #10ef07;
-  box-shadow: rgba(255, 255, 255, .65) 0px 15px 11px -9px inset, rgba(0, 100, 0, .4) 0px -12px 11px -9px inset, rgba(0, 0, 0, .65) 0 4px 20px, rgba(0, 255, 0, .5) 0 0 15px;
-  color: black;
-}
-
 main {
   flex: 2 1 auto;
 }
@@ -152,3 +132,36 @@ nav::after {
   width: 100%;
   border-top: 1px solid var(--nav-above-border-color);
 }
+
+/* Taken from https://github.com/aus/led.css */
+.led {
+  margin-top: 1px;
+  width: 20px;
+  height: 20px;
+  border-radius: 5px;
+  background-color: rgba(255, 255, 255, 0.25);
+  box-shadow: #fff5 3px 5px 7px -8px inset, #000 0 -1px 6px 1px;
+}
+.led-red {
+  background-color: #F00;
+  box-shadow: #000 0 -1px 6px 1px, inset #600 0 -1px 8px, #F00 0 3px 11px;
+}
+.led-orange {
+  background-color: #FF7000;
+  box-shadow: #000 0 -1px 6px 1px, inset #630 0 -1px 8px, #FF7000 0 3px 11px;
+}
+
+.led-yellow {
+  background-color: #FF0;
+  box-shadow: #000 0 -1px 6px 1px, inset #660 0 -1px 8px, #FF0 0 3px 11px;
+}
+
+.led-green {
+  background-color: #80FF00;
+  box-shadow: #000 0 -1px 6px 1px, inset #460 0 -1px 8px, #80FF00 0 3px 11px;
+}
+
+.led-blue {
+  background-color: #06F;
+  box-shadow: #000 0 -1px 6px 1px, inset #006 0 -1px 8px, #06F 0 3px 11px;
+}

public/assets/app.js

@@ -1,19 +1,71 @@
 class WSClient
 {
-  constructor() {
-    // Create WebSocket connection.
-    const socket = new WebSocket('ws://localhost:4040')
+  constructor(url = 'ws://localhost:4040') {
+    this.url = url
+    this.socket = null
+    this.connected = false
+    this.connecting = false
+    this.reconnectingAt = null
+    this.retryDuration = 1000
+    this.open()
+  }
 
-    // Connection opened
-    socket.addEventListener('open', function (event) {
-      console.log('Sending hello server')
-      socket.send(JSON.stringify({ msg: 'Hello Server!' }))
-    })
+  open() {
+    if (this.connected || this.connecting) return
+    this.connecting = true
+    this.socket = new WebSocket(this.url)
 
-    // Listen for messages
-    socket.addEventListener('message', function (event) {
-      console.log('Message from server', event.data)
-    })
+    this.socket.addEventListener('open', this.onopen.bind(this))
+    this.socket.addEventListener('message', this.onmessage.bind(this))
+    this.socket.addEventListener('error', this.onerror.bind(this))
+    this.socket.addEventListener('close', this.onclose.bind(this))
+    m.redraw()
+  }
+
+  onopen() {
+    this.retryDuration = 1000
+    this.connecting = false
+    this.reconnectingAt = null
+    this.connected = true
+    console.log('Sending hello server')
+    this.send({ msg: 'Hello Server!' })
+    m.redraw()
+  }
+
+  send(payload) {
+    if (!this.connected) return
+    this.socket.send(JSON.stringify(payload))
+  }
+
+  onerror(err) {
+    console.error(err)
+    this.reconnect()
+  }
+
+  onclose() {
+    this.reconnect()
+  }
+
+  reconnect() {
+    if (this.reconnectingAt) return
+    this.socket = null
+    this.connected = false
+    this.connecting = false
+    
+    this.reconnectingAt = new Date(new Date().getTime() + this.retryDuration)
+    setTimeout(() => {
+      this.reconnectingAt = null
+      this.retryDuration *= 1.5
+      this.open()
+    }, this.retryDuration)
+    m.redraw()
+  }
+
+  onmessage(event) {
+    try {
+      let data = JSON.parse(event.data)
+      console.log('got message', data)
+    } catch (err) { console.error(err) }
   }
 }
 
@@ -25,8 +77,14 @@ class Header {
       m('h1', 'Fíladelfíu streymi'),
       m('div.status.green', { hidden: true }, 'No errors'),
       m('div.filler'),
-      m('span', 'Status:'),
-      m('div.status', 'Not live'),
+      m('span', 'Live:'),
+      m('div.led'),
+      client.connected
+        ? null
+        : m('div.overlay', [
+          m('h2', client.connecting ? 'Connecting to server...' : 'Connection lost'),
+          m('')
+        ]),
     ]
   }
 }

server/server.mjs

@@ -42,7 +42,7 @@ export function run(http, port, core) {
   flaska.get('/::file', serve.serve.bind(serve))
 
   return flaska.listenAsync(port).then(function() {
-    const wss = new WebSocketServer({ server: flaska.server })
+    /*const wss = new WebSocketServer({ server: flaska.server })
 
     wss.on('connection', function(ws) {
       console.log('new connection')
@@ -88,6 +88,7 @@ export function run(http, port, core) {
     wss.on('close', function() {
       clearInterval(interval)
     })
+    */
 
     core.log.info('Server is listening on port ' + port)
   })