#!/usr/bin/env python3
import json
import os
import sys

import pytz

ZULIP_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "../../")
sys.path.insert(0, ZULIP_PATH)

from zerver.lib.timezone import get_canonical_timezone_map

OUT_PATH = os.path.join(ZULIP_PATH, "static", "generated", "timezones.json")

with open(OUT_PATH, "w") as f:
    json.dump({"timezones": sorted(pytz.all_timezones_set - set(get_canonical_timezone_map()))}, f)