From 4bf726695128d8c8a9bad8cba47a442cfff59630 Mon Sep 17 00:00:00 2001
From: Konrad <klux2@hs-mittweida.de>
Date: Fri, 27 Sep 2019 19:57:32 +0200
Subject: [PATCH] caching meals for 15 minutes

---
 HSMensaW_botA.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/HSMensaW_botA.py b/HSMensaW_botA.py
index 4e2c45d..29dab4b 100644
--- a/HSMensaW_botA.py
+++ b/HSMensaW_botA.py
@@ -10,6 +10,7 @@ import traceback
 import urllib.request
 import xml.etree.ElementTree as ET
 from enum import Enum
+from time import time
 from typing import Any
 from urllib.error import HTTPError
 
@@ -54,6 +55,7 @@ essen = []
 essen_eng = []
 var = True
 datum = None
+last_updated = 0.0
 
 botID = -1
 
@@ -244,7 +246,11 @@ async def get_essen(only_today: bool) -> None:
     :param only_today: only current day; no download if the mensa is closed
     :return:
     """
-    global datum, essen, essen_eng, var  # , ctx
+    global datum, essen, essen_eng, var, last_updated  # , ctx
+    if time() < last_updated + 900:
+        return
+    last_updated = time()
+
     essen = []
     essen_eng = []
     try: