04/22 Upgraded code commit

app.py

@@ -21,6 +21,11 @@ logger = logging.getLogger("app")
 IDLE_TIMEOUT_MS = 30 * 60 * 1000   # 30 minutes in milliseconds
 IDLE_WARNING_MS = 60 * 1000         # warn 1 minute before timeout
 
+# ─── Version Configuration ────────────────────────────────────────────────────
+APP_VERSION         = "1.0.0"
+VERSION_CHECK_URL   = "https://api.github.com/repos/your-org/website-checker/releases/latest"
+VERSION_CHECK_ENABLED = False       # set True and update URL when publishing releases
+
 
 class App(tk.Tk):
     def __init__(self):
@@ -88,6 +93,11 @@ class App(tk.Tk):
         if user.get("role") == "admin":
             from utils.scheduler import start as _sched_start
             _sched_start()
+        # Non-blocking version check (admin only)
+        if user.get("role") == "admin" and VERSION_CHECK_ENABLED:
+            import threading
+            threading.Thread(target=self._check_for_updates,
+                             daemon=True).start()
 
     def _centre(self):
         self.update_idletasks()
@@ -388,6 +398,66 @@ class App(tk.Tk):
         )
         self._logout()
 
+    # ─── Version Check ────────────────────────────────────────────────────────
+
+    def _check_for_updates(self):
+        """
+        Background thread: fetch the latest release tag from GitHub and
+        show a dismissible banner if a newer version is available.
+        Set VERSION_CHECK_ENABLED=True and update VERSION_CHECK_URL to activate.
+        """
+        try:
+            import urllib.request
+            import json
+            req = urllib.request.Request(
+                VERSION_CHECK_URL,
+                headers={"User-Agent": "WebsiteChecker/" + APP_VERSION},
+            )
+            with urllib.request.urlopen(req, timeout=6) as resp:
+                data        = json.loads(resp.read())
+                latest_tag  = data.get("tag_name", "").lstrip("v")
+                release_url = data.get("html_url", "")
+
+            if latest_tag and latest_tag != APP_VERSION:
+                logger.info(f"New version available: {latest_tag} (current: {APP_VERSION})")
+                self.after(0, lambda: self._show_update_banner(latest_tag, release_url))
+        except Exception as e:
+            logger.debug(f"Version check failed (non-critical): {e}")
+
+    def _show_update_banner(self, latest_version: str, release_url: str):
+        """Show a non-intrusive dismissible update notification at the top."""
+        if not self.current_user:
+            return
+        try:
+            banner = tk.Frame(self.content, bg=COLOURS["accent"], pady=6)
+            banner.pack(fill="x", side="top", before=self.content.winfo_children()[0])
+
+            tk.Label(banner,
+                     text=f"  Update available: v{latest_version}  "
+                          f"(you have v{APP_VERSION})",
+                     bg=COLOURS["accent"], fg=COLOURS["white"],
+                     font=FONT_SMALL).pack(side="left", padx=(8, 0))
+
+            if release_url:
+                import webbrowser
+                tk.Button(
+                    banner, text="View Release",
+                    command=lambda: webbrowser.open(release_url),
+                    bg=COLOURS["white"], fg=COLOURS["accent"],
+                    relief="flat", font=FONT_SMALL, cursor="hand2",
+                    padx=8, pady=2,
+                ).pack(side="left", padx=8)
+
+            tk.Button(
+                banner, text="✕ Dismiss",
+                command=banner.destroy,
+                bg=COLOURS["accent"], fg=COLOURS["white"],
+                relief="flat", font=FONT_SMALL, cursor="hand2",
+                padx=8,
+            ).pack(side="right", padx=8)
+        except Exception:
+            pass   # UI may not be ready — silently skip
+
     # ─── Change Password ──────────────────────────────────────────────────────
 
     def _show_change_password(self):