Merge pull request #8 from BarbourSmith/Add-heartbeat-detection

Add detection of the heartbeat
BarbourSmith · Mar 24, 2024 · f84f20f · f84f20f
2 parents 981c8df + 399a613
commit f84f20f
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diff --git a/index.html.gz b/index.html.gz
diff --git a/www/js/tablet.js b/www/js/tablet.js
@@ -4,6 +4,8 @@ var gCodeDisplayable = false
 var snd = null
 var sndok = true
 
+var lastHeartBeatTime = new Date().getTime();
+
 var versionNumber = 0.65
 
 function beep(vol, freq, duration) {
@@ -238,6 +240,18 @@ sendMove = function (cmd) {
 
   fn && fn()
 }
+setInterval(checkOnHeartbeat, 500);
+function checkOnHeartbeat() {
+  if (new Date().getTime() - lastHeartBeatTime > 10000) {
+    let msgWindow = document.getElementById('messages')
+    let text = msgWindow.textContent
+    text = text + '\n' + "No heartbeat from machine in 10 seconds. Please check connection."
+    msgWindow.textContent = text
+    msgWindow.scrollTop = msgWindow.scrollHeight
+    lastHeartBeatTime = new Date().getTime();
+  }
+}
+
 function tabletShowMessage(msg, collecting) {
   if (
     collecting ||
@@ -250,6 +264,12 @@ function tabletShowMessage(msg, collecting) {
     return
   }
 
+  //This keeps track of when we saw the last heartbeat from the machine
+  if(msg.startsWith('[MSG:INFO: Heartbeat')){
+    lastHeartBeatTime = new Date().getTime();
+    return
+  }
+
   let msgWindow = document.getElementById('messages')
   let text = msgWindow.textContent
   text = text + '\n' + msg