dynamic appointments loading

dashboard/callbacks/appointments_callbacks.py

@@ -1,12 +1,16 @@
 # dashboard/callbacks/appointments_callbacks.py
+import os
 import sys
 sys.path.append('/workspace')
 from dash import Input, Output, State, callback, ctx, dash
 from flask import session
 import json
+import requests
 
 print("appointments_callbacks.py geladen")
 
+API_BASE_URL = os.getenv("API_BASE_URL", "http://192.168.43.100")
+
 @callback(
     dash.Output('output', 'children'),
     dash.Input('calendar', 'lastDateClick')
@@ -34,3 +38,25 @@ def display_select(select_info):
         return f"Markiert: {select_info['start']} bis {select_info['end']} (ganztägig: {select_info['allDay']})"
     return "Markiere einen Bereich im Kalender!"
 
+@callback(
+    dash.Output('calendar', 'events'),
+    dash.Input('calendar', 'lastNavClick'),
+)
+def load_events(view_dates):
+    """
+    Lädt Events aus der API für den angezeigten Zeitraum im Kalender.
+    """
+    print("Lade Events für Zeitraum:", view_dates)
+    if not view_dates or "start" not in view_dates or "end" not in view_dates:
+        return []
+    start = view_dates["start"]
+    end = view_dates["end"]
+    try:
+        resp = requests.get(f"{API_BASE_URL}/api/events", params={"start": start, "end": end})
+        resp.raise_for_status()
+        events = resp.json()
+        return events
+    except Exception as e:
+        print("Fehler beim Laden der Events:", e)
+        return []
+