From 437857c7353a5947f2f146ad4d19e2b36b4551e6 Mon Sep 17 00:00:00 2001
From: root <root@quarantadue.ondarossa.net>
Date: Sat, 28 Dec 2024 15:57:56 +0100
Subject: [PATCH] tz-aware

---
 ics-now.py | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/ics-now.py b/ics-now.py
index ee196cd..9964493 100644
--- a/ics-now.py
+++ b/ics-now.py
@@ -6,6 +6,7 @@ This script yields JSON info about the current event + the next one.
 It depends on the nice ics-query https://github.com/niccokunzmann/ics-query
 """
 
+import os
 import datetime
 import json
 import sys
@@ -13,11 +14,17 @@ from argparse import ArgumentParser
 from pathlib import Path
 from subprocess import check_output
 
+import pytz
 from icalendar import Calendar, Event
 
+TZ = os.getenv('TZ')
+if TZ is None:
+    TZ = check_output('timedatectl show -p Timezone --value'.split()).strip()
 
 def parse_dt(s: str) -> datetime.datetime:
-    return datetime.datetime.strptime(s, "%Y-%m-%dT%H:%M:%S")
+    dt = datetime.datetime.strptime(s, "%Y-%m-%dT%H:%M:%S")
+    dt = pytz.timezone(TZ).localize(dt)
+    return dt
 
 
 def parse_minutes(s: str) -> datetime.timedelta:
@@ -28,10 +35,9 @@ class IcsNow:
     def __init__(self):
         self.parser = ArgumentParser()
         self.parser.add_argument("ics", type=Path)
-        self.parser.add_argument("--tz", default="Europe/Rome")
         self.parser.add_argument(
             "--now",
-            default=datetime.datetime.now(),
+            default=datetime.datetime.now(pytz.timezone(TZ)),
             type=parse_dt,
             help="Simulate different time. Mostly for debug",
         )
@@ -55,7 +61,7 @@ class IcsNow:
                 self.args.ics_query,
                 cmd,
                 "--tz",
-                self.args.tz,
+                TZ,
                 "--component",
                 "VEVENT",
                 *args,