104 lines
4.0 KiB
Python
104 lines
4.0 KiB
Python
# holidays
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# --------
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# A fast, efficient Python library for generating country, province and state
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# specific sets of holidays on the fly. It aims to make determining whether a
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# specific date is a holiday as fast and flexible as possible.
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#
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# Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
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# dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
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# ryanss <ryanssdev@icloud.com> (c) 2014-2017
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# Website: https://github.com/vacanza/holidays
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# License: MIT (see LICENSE file)
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from datetime import date
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from typing import Optional
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from holidays.calendars import _MongolianLunisolar
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from holidays.groups.eastern import EasternCalendarHolidays
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class MongolianCalendarHolidays(EasternCalendarHolidays):
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"""
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Mongolian lunisolar calendar holidays.
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"""
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def __init__(self, cls=None, show_estimated=False) -> None:
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self._mongolian_calendar = cls() if cls else _MongolianLunisolar()
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self._mongolian_calendar_show_estimated = show_estimated
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def _add_mongolian_calendar_holiday(
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self, name: str, dt_estimated: tuple[Optional[date], bool], days_delta: int = 0
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) -> Optional[date]:
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"""
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Add Mongolian calendar holiday.
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Adds customizable estimation label to holiday name if holiday date
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is an estimation.
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"""
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return self._add_eastern_calendar_holiday(
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name, dt_estimated, self._mongolian_calendar_show_estimated, days_delta
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)
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def _add_buddha_day(self, name) -> Optional[date]:
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"""
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Add Buddha Day.
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Buddha Day is celebrated on the 15th day of the early summer month
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in the Mongolian lunisolar calendar.
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This holiday honors the birth, enlightenment, and death of Buddha.
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https://en.wikipedia.org/wiki/Vesak (general Buddhist context)
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"""
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return self._add_mongolian_calendar_holiday(
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name, self._mongolian_calendar.buddha_day_date(self._year)
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)
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def _add_genghis_khan_day(self, name) -> Optional[date]:
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"""
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Add Genghis Khan's Birthday.
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Genghis Khan's Birthday is observed on the 1st day of the early winter month
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according to the Mongolian lunisolar calendar.
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It commemorates the birth of the founder of the Mongol Empire.
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https://en.wikipedia.org/wiki/Genghis_Khan
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"""
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return self._add_mongolian_calendar_holiday(
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name, self._mongolian_calendar.genghis_khan_day_date(self._year)
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)
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def _add_tsagaan_sar(self, name) -> Optional[date]:
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"""
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Add Tsagaan Sar (Mongolian Lunar New Year).
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Tsagaan Sar, or White Moon Festival, marks the beginning of the Mongolian Lunar New Year.
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It usually falls on the first day of the first month of the Mongolian lunisolar calendar.
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https://en.wikipedia.org/wiki/Tsagaan_Sar
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"""
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return self._add_mongolian_calendar_holiday(
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name, self._mongolian_calendar.tsagaan_sar_date(self._year)
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)
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def _add_tsagaan_sar_day_2(self, name) -> Optional[date]:
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"""
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Add Tsagaan Sar Day 2 (Mongolian Lunar New Year).
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Tsagaan Sar, or White Moon Festival, marks the beginning of the Mongolian Lunar New Year.
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It usually falls on the first day of the first month of the Mongolian lunisolar calendar.
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https://en.wikipedia.org/wiki/Tsagaan_Sar
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"""
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return self._add_mongolian_calendar_holiday(
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name, self._mongolian_calendar.tsagaan_sar_date(self._year), days_delta=+1
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)
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def _add_tsagaan_sar_day_3(self, name) -> Optional[date]:
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"""
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Add Tsagaan Sar Day 3 (Mongolian Lunar New Year).
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Tsagaan Sar, or White Moon Festival, marks the beginning of the Mongolian Lunar New Year.
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It usually falls on the first day of the first month of the Mongolian lunisolar calendar.
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https://en.wikipedia.org/wiki/Tsagaan_Sar
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"""
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return self._add_mongolian_calendar_holiday(
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name, self._mongolian_calendar.tsagaan_sar_date(self._year), days_delta=+2
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)
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