feat: show update service status in UI

backend/app.py

@@ -26,6 +26,7 @@ from backend.models import (
     UpdateActionResponse,
     UpdateCheckResponse,
     UpdateLogEntry,
+    UpdateServiceStatus,
     UpdateStatus,
     UserStatus,
 )
@@ -314,6 +315,12 @@ def update_logs(settings: Settings = Depends(get_settings), limit: int = 200) ->
         ) from exc
 
 
+@app.get("/update/service-status", response_model=UpdateServiceStatus, dependencies=[Depends(get_current_admin)])
+def update_service_status(settings: Settings = Depends(get_settings)) -> UpdateServiceStatus:
+    data = update.get_service_status(settings)
+    return UpdateServiceStatus(**data)
+
+
 @app.get("/", response_class=HTMLResponse)
 @app.get("/login", response_class=HTMLResponse)
 @app.get("/dashboard", response_class=HTMLResponse)

backend/models.py

@@ -73,3 +73,11 @@ class UpdateLogEntry(BaseModel):
     version: Optional[str] = None
     error: Optional[str] = None
     device_id: Optional[str] = None
+
+
+class UpdateServiceStatus(BaseModel):
+    url: str
+    reachable: bool
+    status_code: Optional[int] = None
+    error: Optional[str] = None
+    checked_url: str

backend/templates/index.html

@@ -414,7 +414,10 @@
       statusDiv.innerHTML = '<div class="spinner" style="margin: 0 auto;"></div><p class="text-center text-muted mt-1">Lade Update-Status...</p>';
 
       try {
-        const data = await api('/update/status');
+        const [data, serviceStatus] = await Promise.all([
+          api('/update/status'),
+          api('/update/service-status')
+        ]);
         document.querySelector('#metricVersion .value').textContent = data.current_version;
         document.getElementById('headerVersion').textContent = `v${data.current_version}`;
 
@@ -436,12 +439,24 @@
             enrollSection.classList.remove('hidden');
         }
 
+        const serviceBadge = serviceStatus.reachable
+          ? '<span class="badge success"><i data-lucide="server"></i> Online</span>'
+          : '<span class="badge error"><i data-lucide="server-off"></i> Offline</span>';
+        const serviceHint = serviceStatus.status_code
+          ? `HTTP ${serviceStatus.status_code}`
+          : (serviceStatus.error || 'keine Antwort');
+
         statusDiv.innerHTML = `
           <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem;">
             <div>
               <div class="text-muted" style="font-size: 0.75rem; text-transform: uppercase; margin-bottom: 0.25rem;">Version</div>
               <div style="color: var(--color-accent); font-weight: 600;">${data.current_version}</div>
             </div>
+            <div>
+              <div class="text-muted" style="font-size: 0.75rem; text-transform: uppercase; margin-bottom: 0.25rem;">Update-Service</div>
+              <div>${serviceBadge}</div>
+              <div class="text-muted" style="font-size: 0.75rem;">${serviceStatus.url} (${serviceHint})</div>
+            </div>
             <div>
               <div class="text-muted" style="font-size: 0.75rem; text-transform: uppercase; margin-bottom: 0.25rem;">Registrierung</div>
               <div>${enrolledBadge}</div>

backend/update.py

@@ -220,3 +220,35 @@ def get_logs(settings: Settings, limit: int = 200) -> List[Dict[str, Any]]:
         except json.JSONDecodeError:
             continue
     return entries
+
+
+def get_service_status(settings: Settings) -> Dict[str, Any]:
+    base_url = settings.update_service_url.rstrip("/")
+    if not base_url:
+        return {
+            "url": "",
+            "reachable": False,
+            "status_code": None,
+            "error": "update service url not configured",
+            "checked_url": "",
+        }
+
+    check_url = base_url
+    try:
+        with httpx.Client(timeout=3.0) as client:
+            response = client.get(check_url)
+        return {
+            "url": base_url,
+            "reachable": True,
+            "status_code": response.status_code,
+            "error": None,
+            "checked_url": check_url,
+        }
+    except Exception as exc:
+        return {
+            "url": base_url,
+            "reachable": False,
+            "status_code": None,
+            "error": str(exc),
+            "checked_url": check_url,
+        }