Add summon timestamp logging, adjust Arduino sketch code for reconnect

arduino/Callbell/Callbell.ino

@@ -56,10 +56,22 @@ void setup() {
 
 void loop() {
 
+  // Check the status of the WiFi
+  // If we have lost connection, set LED to red and attempt to reconnect every 10 seconds
+  while (WiFi.status() == WL_DISCONNECTED) {
+    Serial.println("Lost connection the WiFi!");
+    setColour(255, 0, 0);
+    delay(10000);
+    WiFi.begin(ssid, pass);
+  }
+
+  if (WiFi.status() == WL_CONNECTED && canSummon) {
+    setColour(0, 255, 0);
+  }
+
   // If cannot currently summon, block thread for 6 secs
   if (!canSummon) {
     delay(6000);
-    setColour(0, 255, 0);
     canSummon = true;
   }
 
@@ -81,8 +93,8 @@ void summonRequest() {
       // Send POST request
       client.println("POST /call");
       client.println();
-      canSummon = false;
     }
+    canSummon = false;
   }
 }
 

server/callbell-server.js

@@ -1,5 +1,6 @@
 const notifier = require('node-notifier');
 const express = require('express');
+const {getDateTime} = require('./utils');
 
 const PORT = 4200;
 const app = express();
@@ -23,6 +24,8 @@ app.post('/call', (req, res) => {
             wait: false
         });
 
+        console.log(`${getDateTime()} Summon request received`);
+
         // Anti spam timeout function
         setTimeout(() => canSummon = true, SUMMON_DELAY);
         res.status(200).send();

server/utils.js

@@ -0,0 +1,20 @@
+// Courtesy of Ionică Bizău from https://stackoverflow.com/questions/7357734/
+
+let getDateTime = () => {
+
+    let date = new Date();
+
+    let hour = date.getHours();
+    hour = (hour < 10 ? "0" : "") + hour;
+
+    let min = date.getMinutes();
+    min = (min < 10 ? "0" : "") + min;
+
+    let sec = date.getSeconds();
+    sec = (sec < 10 ? "0" : "") + sec;
+
+    return "[" + hour + ":" + min + ":" + sec + "]";
+
+}
+
+module.exports = { getDateTime };