Check for newer app version at start

package.json

@@ -24,6 +24,7 @@
     "stylelint-config-standard": "^34.0.0"
   },
   "dependencies": {
-    "electron-store": "^8.1.0"
+    "electron-store": "^8.1.0",
+    "semver": "^7.5.4"
   }
 }

src/main/main.js

@@ -2,9 +2,15 @@ const { app, BrowserWindow, ipcMain, shell, globalShortcut, dialog } = require('
 const path = require('node:path')
 const tray = require('./tray')
 const { userSettings } = require('./storage')
+const { checkForUpdates } = require('./update')
 
 app.commandLine.appendSwitch('wm-window-animations-disabled')
 
+// check for updates in background
+if (app.isPackaged) {
+    checkForUpdates()
+}
+
 const createWindow = (width, height) => {
     const win = new BrowserWindow({
         width: width,

src/main/update.js

@@ -0,0 +1,45 @@
+const { app, dialog, shell } = require('electron')
+const semver = require('semver')
+const https = require('https')
+
+exports.checkForUpdates = () => {
+    const currentVersion = app.getVersion()
+
+    const reqOptions = {
+        protocol: 'https:',
+        host: 'api.github.com',
+        path: '/repos/flbraun/poe-palette/releases/latest',
+        headers: {
+            'User-Agent': 'flbraun/poe-palette',
+        },
+    }
+
+    https.get(reqOptions, (resp) => {
+        let data = ''
+
+        resp.on('data', (chunk) => {
+            data += chunk
+        })
+
+        resp.on('end', () => {
+            const respData = JSON.parse(data)
+            const latestVersion = respData.tag_name
+            const releasePage = respData.html_url
+
+            if (semver.lt(semver.coerce(currentVersion), semver.coerce(latestVersion))) {
+                let buttonClicked = dialog.showMessageBoxSync(null, {
+                    type: 'info',
+                    title: 'Update available!',
+                    message: 'A new version of PoE Palette is available!',
+                    detail: `${latestVersion} is available, you're running ${currentVersion}.\nOpen download page?`,
+                    buttons: ['Yes', 'No'],
+                })
+
+                if (buttonClicked === 0) { // 0 is index of 'Yes' button
+                    shell.openExternal(releasePage)
+                    app.quit()
+                }
+            }
+        })
+    })
+}