From fc99cc51c203563bbba5ae9b9f4cb81a985df90d Mon Sep 17 00:00:00 2001
From: Phil Wilson <Phil@treelands.co.uk>
Date: Wed, 4 Sep 2024 15:36:18 +0100
Subject: [PATCH] Add AUTO_REFRESH environment variable

Change-type: minor
Signed-off-by: Phil Wilson <phil@balena.io>
---
 readme.md     | 1 +
 src/server.js | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/readme.md b/readme.md
index f2a16bb..831e3bb 100644
--- a/readme.md
+++ b/readme.md
@@ -92,6 +92,7 @@ The following environment variables allow configuration of the `browser` block:
 |`WINDOW_POSITION`|`x,y`|`0,0`|Specifies the browser window position on the screen|
 |`API_PORT`|port number|5011|Specifies the port number the API runs on|
 |`REMOTE_DEBUG_PORT`|port number|35173|Specifies the port number the chrome remote debugger runs on|
+|`AUTO_REFRESH`|interval|0 (disabled)|Specifies the number of seconds before the page automatically refreshes|
 
 ---
 
diff --git a/src/server.js b/src/server.js
index 0094706..79c8031 100644
--- a/src/server.js
+++ b/src/server.js
@@ -22,6 +22,7 @@ const REMOTE_DEBUG_PORT = process.env.REMOTE_DEBUG_PORT || 35173;
 const FLAGS = process.env.FLAGS || null;
 const EXTRA_FLAGS = process.env.EXTRA_FLAGS || null;
 const HTTPS_REGEX = /^https?:\/\//i //regex for HTTP/S prefix
+const AUTO_REFRESH = process.env.AUTO_REFRESH || 0;
 
 // Environment variables which can be overriden from the API
 let kioskMode = process.env.KIOSK || '0';
@@ -182,6 +183,7 @@ async function SetDefaultFlags() {
 }
 
 async function setTimer(interval) {
+  console.log("Auto refresh interval: ", interval);
   timer = setIntervalAsync(
     async () => {
       try {
@@ -204,6 +206,10 @@ async function main(){
   await SetDefaultFlags();
   let url = await getUrlToDisplayAsync();
   await launchChromium(url);
+  if (AUTO_REFRESH > 0)
+  {
+    await setTimer(AUTO_REFRESH * 1000);
+  }
 }