Fix: Cache-Busting fuer JS/CSS (?v=Inhalts-Hash) + Cache-Control: no-cache — alte gecachte app.js ohne Such-Polling verhinderte Live-Ergebnisse

app/main.py

@@ -1,4 +1,5 @@
 """CIS Enhanced - FastAPI app."""
+import hashlib
 import json
 import os
 import threading
@@ -33,7 +34,8 @@ client = CISClient(os.environ["CIS_USER"], os.environ["CIS_PASSWORD"], BASE)
 OWN_UID = os.environ.get("OWN_UID", os.environ["CIS_USER"])
 
 app = FastAPI(title="CIS Enhanced")
-app.mount("/static", StaticFiles(directory=str(Path(__file__).parent / "static")), name="static")
+_STATIC_DIR = Path(__file__).parent / "static"
+app.mount("/static", StaticFiles(directory=str(_STATIC_DIR)), name="static")
 templates = Jinja2Templates(directory=str(Path(__file__).parent / "templates"))
 templates.env.globals["lv_color"] = lv_color
 templates.env.globals["decode_matrikel"] = decode_matrikel
@@ -41,6 +43,19 @@ templates.env.globals["fmt_range"] = fmt_range
 templates.env.globals["week_label"] = week_label
 templates.env.globals["slots"] = SLOTS
 
+# Cache-Busting: Version = Hash der JS/CSS-Inhalte (neue URL => kein veralteter Browser-Cache)
+_APP_HASH = hashlib.md5(
+    (_STATIC_DIR / "app.js").read_bytes() + (_STATIC_DIR / "style.css").read_bytes()
+).hexdigest()[:10]
+templates.env.globals["app_version"] = _APP_HASH
+
+
+@app.middleware("http")
+async def _no_cache(request: Request, call_next):
+    resp = await call_next(request)
+    resp.headers["Cache-Control"] = "no-cache"
+    return resp
+
 
 def _meta():
     return client.meta()

app/templates/base.html

@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>{% block title %}CIS Enhanced{% endblock %} | FH-Burgenland</title>
-<link rel="stylesheet" href="/static/style.css">
+<link rel="stylesheet" href="/static/style.css?v={{ app_version }}">
 </head>
 <body>
 {% set path = request.url.path %}
@@ -32,6 +32,6 @@
   </div>
 </footer>
 {% block scripts %}{% endblock %}
-<script src="/static/app.js"></script>
+<script src="/static/app.js?v={{ app_version }}"></script>
 </body>
 </html>