fix: timezones

apiserver/plane/app/views/timezone.py

@@ -0,0 +1,230 @@
+# Python imports
+import pytz
+from datetime import datetime
+
+# Django imports
+from django.utils.decorators import method_decorator
+from django.views.decorators.cache import cache_page
+
+# Third party imports
+from rest_framework.response import Response
+from rest_framework import status
+from rest_framework.permissions import AllowAny
+from rest_framework.views import APIView
+
+
+class TimezoneEndpoint(APIView):
+    permission_classes = [AllowAny]
+
+    @method_decorator(cache_page(60 * 60 * 24))
+    def get(self, request):
+        timezone_mapping = {
+            "-1100": [
+                ("Midway Island", "Pacific/Midway"),
+                ("American Samoa", "Pacific/Pago_Pago"),
+            ],
+            "-1000": [
+                ("Hawaii", "Pacific/Honolulu"),
+                ("Aleutian Islands", "America/Adak"),
+            ],
+            "-0930": [("Marquesas Islands", "Pacific/Marquesas")],
+            "-0900": [
+                ("Alaska", "America/Anchorage"),
+                ("Gambier Islands", "Pacific/Gambier"),
+            ],
+            "-0800": [
+                ("Pacific Time (US and Canada)", "America/Los_Angeles"),
+                ("Baja California", "America/Tijuana"),
+            ],
+            "-0700": [
+                ("Mountain Time (US and Canada)", "America/Denver"),
+                ("Arizona", "America/Phoenix"),
+                ("Chihuahua, Mazatlan", "America/Chihuahua"),
+            ],
+            "-0600": [
+                ("Central Time (US and Canada)", "America/Chicago"),
+                ("Saskatchewan", "America/Regina"),
+                ("Guadalajara, Mexico City, Monterrey", "America/Mexico_City"),
+                ("Tegucigalpa, Honduras", "America/Tegucigalpa"),
+                ("Costa Rica", "America/Costa_Rica"),
+            ],
+            "-0500": [
+                ("Eastern Time (US and Canada)", "America/New_York"),
+                ("Lima", "America/Lima"),
+                ("Bogota", "America/Bogota"),
+                ("Quito", "America/Guayaquil"),
+                ("Chetumal", "America/Cancun"),
+            ],
+            "-0430": [("Caracas (Old Venezuela Time)", "America/Caracas")],
+            "-0400": [
+                ("Atlantic Time (Canada)", "America/Halifax"),
+                ("Caracas", "America/Caracas"),
+                ("Santiago", "America/Santiago"),
+                ("La Paz", "America/La_Paz"),
+                ("Manaus", "America/Manaus"),
+                ("Georgetown", "America/Guyana"),
+                ("Bermuda", "Atlantic/Bermuda"),
+            ],
+            "-0330": [("Newfoundland Time (Canada)", "America/St_Johns")],
+            "-0300": [
+                ("Buenos Aires", "America/Argentina/Buenos_Aires"),
+                ("Brasilia", "America/Sao_Paulo"),
+                ("Greenland", "America/Godthab"),
+                ("Montevideo", "America/Montevideo"),
+                ("Falkland Islands", "Atlantic/Stanley"),
+            ],
+            "-0200": [
+                (
+                    "South Georgia and the South Sandwich Islands",
+                    "Atlantic/South_Georgia",
+                )
+            ],
+            "-0100": [
+                ("Azores", "Atlantic/Azores"),
+                ("Cape Verde Islands", "Atlantic/Cape_Verde"),
+            ],
+            "+0000": [
+                ("Dublin", "Europe/Dublin"),
+                ("Reykjavik", "Atlantic/Reykjavik"),
+                ("Lisbon", "Europe/Lisbon"),
+                ("Monrovia", "Africa/Monrovia"),
+                ("Casablanca", "Africa/Casablanca"),
+            ],
+            "+0100": [
+                ("Central European Time (Berlin, Rome, Paris)", "Europe/Paris"),
+                ("West Central Africa", "Africa/Lagos"),
+                ("Algiers", "Africa/Algiers"),
+                ("Lagos", "Africa/Lagos"),
+                ("Tunis", "Africa/Tunis"),
+            ],
+            "+0200": [
+                ("Eastern European Time (Cairo, Helsinki, Kyiv)", "Europe/Kiev"),
+                ("Athens", "Europe/Athens"),
+                ("Jerusalem", "Asia/Jerusalem"),
+                ("Johannesburg", "Africa/Johannesburg"),
+                ("Harare, Pretoria", "Africa/Harare"),
+            ],
+            "+0300": [
+                ("Moscow Time", "Europe/Moscow"),
+                ("Baghdad", "Asia/Baghdad"),
+                ("Nairobi", "Africa/Nairobi"),
+                ("Kuwait, Riyadh", "Asia/Riyadh"),
+            ],
+            "+0330": [("Tehran", "Asia/Tehran")],
+            "+0400": [
+                ("Abu Dhabi", "Asia/Dubai"),
+                ("Baku", "Asia/Baku"),
+                ("Yerevan", "Asia/Yerevan"),
+                ("Astrakhan", "Europe/Astrakhan"),
+                ("Tbilisi", "Asia/Tbilisi"),
+                ("Mauritius", "Indian/Mauritius"),
+            ],
+            "+0500": [
+                ("Islamabad", "Asia/Karachi"),
+                ("Karachi", "Asia/Karachi"),
+                ("Tashkent", "Asia/Tashkent"),
+                ("Yekaterinburg", "Asia/Yekaterinburg"),
+                ("Maldives", "Indian/Maldives"),
+                ("Chagos", "Indian/Chagos"),
+            ],
+            "+0530": [
+                ("Chennai", "Asia/Kolkata"),
+                ("Kolkata", "Asia/Kolkata"),
+                ("Mumbai", "Asia/Kolkata"),
+                ("New Delhi", "Asia/Kolkata"),
+                ("Sri Jayawardenepura", "Asia/Colombo"),
+            ],
+            "+0545": [("Kathmandu", "Asia/Kathmandu")],
+            "+0600": [
+                ("Dhaka", "Asia/Dhaka"),
+                ("Almaty", "Asia/Almaty"),
+                ("Bishkek", "Asia/Bishkek"),
+                ("Thimphu", "Asia/Thimphu"),
+            ],
+            "+0630": [
+                ("Yangon (Rangoon)", "Asia/Yangon"),
+                ("Cocos Islands", "Indian/Cocos"),
+            ],
+            "+0700": [
+                ("Bangkok", "Asia/Bangkok"),
+                ("Hanoi", "Asia/Ho_Chi_Minh"),
+                ("Jakarta", "Asia/Jakarta"),
+                ("Novosibirsk", "Asia/Novosibirsk"),
+                ("Krasnoyarsk", "Asia/Krasnoyarsk"),
+            ],
+            "+0800": [
+                ("Beijing", "Asia/Shanghai"),
+                ("Singapore", "Asia/Singapore"),
+                ("Perth", "Australia/Perth"),
+                ("Hong Kong", "Asia/Hong_Kong"),
+                ("Ulaanbaatar", "Asia/Ulaanbaatar"),
+                ("Palau", "Pacific/Palau"),
+            ],
+            "+0845": [("Eucla", "Australia/Eucla")],
+            "+0900": [
+                ("Tokyo", "Asia/Tokyo"),
+                ("Seoul", "Asia/Seoul"),
+                ("Yakutsk", "Asia/Yakutsk"),
+            ],
+            "+0930": [
+                ("Adelaide", "Australia/Adelaide"),
+                ("Darwin", "Australia/Darwin"),
+            ],
+            "+1000": [
+                ("Sydney", "Australia/Sydney"),
+                ("Brisbane", "Australia/Brisbane"),
+                ("Guam", "Pacific/Guam"),
+                ("Vladivostok", "Asia/Vladivostok"),
+                ("Tahiti", "Pacific/Tahiti"),
+            ],
+            "+1030": [("Lord Howe Island", "Australia/Lord_Howe")],
+            "+1100": [
+                ("Solomon Islands", "Pacific/Guadalcanal"),
+                ("Magadan", "Asia/Magadan"),
+                ("Norfolk Island", "Pacific/Norfolk"),
+                ("Bougainville Island", "Pacific/Bougainville"),
+                ("Chokurdakh", "Asia/Srednekolymsk"),
+            ],
+            "+1200": [
+                ("Auckland", "Pacific/Auckland"),
+                ("Wellington", "Pacific/Auckland"),
+                ("Fiji Islands", "Pacific/Fiji"),
+                ("Anadyr", "Asia/Anadyr"),
+            ],
+            "+1245": [("Chatham Islands", "Pacific/Chatham")],
+            "+1300": [("Nuku'alofa", "Pacific/Tongatapu"), ("Samoa", "Pacific/Apia")],
+            "+1400": [("Kiritimati Island", "Pacific/Kiritimati")],
+        }
+
+        timezone_list = []
+        now = datetime.now()
+
+        # Process timezone mapping
+        for offset, locations in timezone_mapping.items():
+            sign = "-" if offset.startswith("-") else "+"
+            hours = offset[1:3]
+            minutes = offset[3:] if len(offset) > 3 else "00"
+
+            for friendly_name, tz_identifier in locations:
+                try:
+                    tz = pytz.timezone(tz_identifier)
+                    current_offset = now.astimezone(tz).strftime("%z")
+
+                    timezone_list.append(
+                        {
+                            "value": tz_identifier,
+                            "label": f"{friendly_name} (UTC{sign}{hours}:{minutes})",
+                            "offset": int(current_offset),
+                        }
+                    )
+                except pytz.exceptions.UnknownTimeZoneError:
+                    continue
+
+        # Sort by offset and then by label
+        timezone_list.sort(key=lambda x: (x["offset"], x["label"]))
+
+        # Remove offset from final output
+        for tz in timezone_list:
+            del tz["offset"]
+
+        return Response({"timezones": timezone_list}, status=status.HTTP_200_OK)

apiserver/plane/urls.py

@@ -3,6 +3,7 @@
 from django.conf import settings
 from django.urls import include, path, re_path
 from django.views.generic import TemplateView
+from plane.app.views.timezone import TimezoneEndpoint
 
 handler404 = "plane.app.views.error_404.custom_404_view"
 
@@ -14,6 +15,7 @@ urlpatterns = [
     path("api/v1/", include("plane.api.urls")),
     path("auth/", include("plane.authentication.urls")),
     path("", include("plane.web.urls")),
+    path("api/timezones/", TimezoneEndpoint.as_view(), name="timezones"),
 ]