refactor: Clean checkin override parsing and require node type in frontend configuration modal

drb-c2-core/app/internal/mqtt_handler.py

@@ -1,6 +1,6 @@
 import asyncio
 import json
-from datetime import datetime, timezone
+from datetime import datetime, timezone, timedelta
 from typing import Optional
 import paho.mqtt.client as mqtt
 from app.config import settings
@@ -117,14 +117,17 @@ class MQTTHandler:
                     # Approved but not yet configured — restore reachable status after reboot
                     updates["status"] = "unconfigured"
             
-            node_type = payload.get("node_type", existing.get("node_type", "fixed"))
+            node_type = payload.get("node_type") or existing.get("node_type") or "fixed"
-            enforce_timeout = payload.get("enforce_override_timeout", existing.get("enforce_override_timeout", True))
+            enforce_timeout = payload.get("enforce_override_timeout")
-            is_overridden = payload.get("is_overridden", False)
+            if enforce_timeout is None:
-            override_system_id = payload.get("override_system_id")
+                enforce_timeout = existing.get("enforce_override_timeout", True)
             
             updates["node_type"] = node_type
             updates["enforce_override_timeout"] = enforce_timeout
             
+            is_overridden = payload.get("is_overridden", False)
+            override_system_id = payload.get("override_system_id")
+            
             if node_type == "portable":
                 updates["is_overridden"] = False
                 updates["override_system_id"] = None
@@ -138,7 +141,6 @@ class MQTTHandler:
                     existing_override_id = existing.get("override_system_id")
                     if enforce_timeout:
                         if not existing_timeout or existing_override_id != override_system_id:
-                            from datetime import timedelta
                             updates["override_timeout_at"] = (now + timedelta(hours=24)).isoformat()
                     else:
                         updates["override_timeout_at"] = None

drb-frontend/components/NodeConfigModal.tsx

@@ -20,7 +20,7 @@ export function NodeConfigModal({ node, systems, onClose }: Props) {
   const [systemId, setSystemId] = useState(node.assigned_system_id ?? "");
   const [preset, setPreset] = useState(node.hardware_preset ?? "rtl-sdr-v3");
   const [ppm, setPpm] = useState(node.ppm_override ? String(node.ppm_override) : "0");
-  const [nodeType, setNodeType] = useState(node.node_type ?? "fixed");
+  const [nodeType, setNodeType] = useState(node.node_type ?? "");
   const [enforceTimeout, setEnforceTimeout] = useState(node.enforce_override_timeout ?? true);
   const [saving, setSaving] = useState(false);
   const [error, setError] = useState<string | null>(null);
@@ -107,12 +107,14 @@ export function NodeConfigModal({ node, systems, onClose }: Props) {
           </div>
 
           <div>
-            <label className="block text-xs text-gray-400 mb-1">Node Type</label>
+            <label className="block text-xs text-gray-400 mb-1">Node Type *</label>
             <select
               value={nodeType}
               onChange={(e) => setNodeType(e.target.value)}
               className="w-full bg-gray-800 border border-gray-700 rounded-lg px-3 py-2 text-white text-sm focus:outline-none focus:border-indigo-500"
+              required
             >
+              <option value="">Select node type...</option>
               <option value="fixed">Fixed Node (Standard)</option>
               <option value="portable">Portable Node (Handheld)</option>
             </select>
@@ -138,7 +140,7 @@ export function NodeConfigModal({ node, systems, onClose }: Props) {
           <div className="flex gap-3 pt-1">
             <button
               type="submit"
-              disabled={saving || !systemId}
+              disabled={saving || !systemId || !nodeType}
               className="flex-1 bg-indigo-600 hover:bg-indigo-500 disabled:opacity-50 text-white rounded-lg py-2 text-sm font-semibold transition-colors"
             >
               {saving ? "Saving…" : "Assign & Configure"}