@@ -1,14 +1,33 @@
-import os
 from icalendar.cal import Calendar, Event
 import requests
 from flask import Flask
 from datetime import date, datetime, timedelta, time
 import zoneinfo
+from dataclasses import dataclass
+from danoan.toml_dataclass import TomlDataClassIO
+from os import environ
+import calendar
+
+@dataclass
+class CalendarConfig(TomlDataClassIO):
+    file: str = ""
+    url: str = ""
+
+@dataclass
+class Config(TomlDataClassIO):
+    name: str
+    timezone: str
+    calendar: CalendarConfig
+
+def load_config(file_path):
+    with open(file_path, "r") as fr:
+        return Config.read(fr)
 
 app = Flask(__name__)
 
-user_name = (os.environ.get("NAME") or os.environ.get("USER") or "unknown").title()
-tz = zoneinfo.ZoneInfo(os.environ.get("TZ") or "Europe/Berlin")
+config = load_config(environ.get("CONFIG_FILE", "config.toml"))
+user_name = config.name
+tz = zoneinfo.ZoneInfo(config.timezone)
 
 def fetch_calendar(calendar_url):
     return requests.get(calendar_url).content
@@ -18,14 +37,13 @@ with open(calendar_file, 'rb') as f:
         return f.read()
 
 def get_calendar():
-    file = os.environ.get('CALENDAR_FILE')
-    if file is not None:
-        return read_calendar_file(file)
+    calendar_config = config.calendar
+    if calendar_config.file != "":
+        return read_calendar_file(calendar_config.file)
     else:
-        calendar_url = os.environ.get("CALENDAR_URL")
-        if calendar_url is None:
-            raise ValueError("CALENDAR_URL not set.")
-        return fetch_calendar(calendar_url)
+        if calendar_config.url != "":
+            return fetch_calendar(calendar_config.url)
+        raise ValueError("Calendar URL not configured.")
 
 def fixup_date(dt):
     if type(dt) == date: