181 lines
6.4 KiB
Python
181 lines
6.4 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 gettext import gettext as tr
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from holidays.calendars.chinese import VIETNAMESE_CALENDAR
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from holidays.calendars.gregorian import (
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JAN,
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FEB,
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APR,
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MAY,
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SEP,
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DEC,
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MON,
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TUE,
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WED,
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THU,
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FRI,
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SAT,
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SUN,
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_timedelta,
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)
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from holidays.groups import ChineseCalendarHolidays, InternationalHolidays, StaticHolidays
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from holidays.observed_holiday_base import (
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ObservedHolidayBase,
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ObservedRule,
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SAT_TO_PREV_WORKDAY,
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SUN_TO_NEXT_WORKDAY,
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SAT_SUN_TO_NEXT_WORKDAY,
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)
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NATIONAL_DAY_RULE = ObservedRule({MON: +1, TUE: -1, WED: -1, THU: +1, FRI: -1, SAT: -1, SUN: +1})
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class Vietnam(ObservedHolidayBase, ChineseCalendarHolidays, InternationalHolidays, StaticHolidays):
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"""Vietnam holidays.
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References:
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* [Labor Code 1994 (Art. 73) (en)](https://web.archive.org/web/20160630110506/http://vbpl.vn/TW/Pages/vbpqen-toanvan.aspx?ItemID=2835)
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* [Labor Code 2012 (Art. 115) (en)](https://web.archive.org/web/20240706232343/http://vbpl.vn/TW/Pages/vbpqen-toanvan.aspx?ItemID=11013)
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* [Labor Code 2012 (Art. 115) (vi)](https://web.archive.org/web/20240917113133/https://vbpl.vn/TW/Pages/vbpq-toanvan.aspx?ItemID=27615)
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* [Labor Code 2019 (Art. 112) (en)](https://web.archive.org/web/20250108181808/https://vbpl.vn/TW/pages/vbpqen-toanvan.aspx?ItemID=11135)
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* [Labor Code 2019 (Art. 112) (vi)](https://web.archive.org/web/20250221171552/https://vbpl.vn/TW/Pages/vbpq-van-ban-goc.aspx?ItemID=139264)
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"""
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country = "VN"
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# %s (observed).
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observed_label = tr("%s (nghỉ bù)")
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default_language = "vi"
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supported_languages = ("en_US", "th", "vi")
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def __init__(self, *args, **kwargs):
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ChineseCalendarHolidays.__init__(self, calendar=VIETNAMESE_CALENDAR)
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InternationalHolidays.__init__(self)
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StaticHolidays.__init__(self, VietnamStaticHolidays)
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kwargs.setdefault("observed_rule", SAT_SUN_TO_NEXT_WORKDAY)
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kwargs.setdefault("observed_since", 1995)
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super().__init__(*args, **kwargs)
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def _add_lunar_new_year_observed(self, dt_lny: date) -> None:
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if self._year <= 1994:
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return None
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day_names = {
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# 29 of Lunar New Year.
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-2: tr("29 Tết"),
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# Fourth Day of Lunar New Year.
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3: tr("Mùng bốn Tết Nguyên Đán"),
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# Fifth Day of Lunar New Year.
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4: tr("Mùng năm Tết Nguyên Đán"),
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# Sixth Day of Lunar New Year.
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5: tr("Mùng sáu Tết Nguyên Đán"),
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}
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for delta in range(-1, 4 if self._year >= 2013 else 3):
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dt = _timedelta(dt_lny, delta)
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dt_observed = self._get_observed_date(
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dt,
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rule=(
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SAT_TO_PREV_WORKDAY + SUN_TO_NEXT_WORKDAY
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if self._year >= 2014
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else SAT_SUN_TO_NEXT_WORKDAY
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),
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)
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if dt_observed != dt:
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self._add_holiday(
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day_names[(dt_observed - dt_lny).days], # type: ignore[operator]
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dt_observed,
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)
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def _populate_public_holidays(self):
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dts_observed = set()
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# New Year's Day.
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dts_observed.add(self._add_new_years_day(tr("Tết Dương lịch")))
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# Lunar New Year's Eve.
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self._add_chinese_new_years_eve(tr("Giao thừa Tết Nguyên Đán"))
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# Lunar New Year.
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lny = self._add_chinese_new_years_day(tr("Tết Nguyên Đán"))
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# Second Day of Lunar New Year.
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self._add_chinese_new_years_day_two(tr("Mùng hai Tết Nguyên Đán"))
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# Third Day of Lunar New Year.
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self._add_chinese_new_years_day_three(tr("Mùng ba Tết Nguyên Đán"))
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if self._year >= 2013:
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# Fourth Day of Lunar New Year.
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self._add_chinese_new_years_day_four(tr("Mùng bốn Tết Nguyên Đán"))
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if self._year >= 2007:
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# Hung Kings' Commemoration Day.
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dts_observed.add(self._add_hung_kings_day(tr("Ngày Giỗ Tổ Hùng Vương")))
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# Liberation Day/Reunification Day.
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dts_observed.add(self._add_holiday_apr_30(tr("Ngày Chiến thắng")))
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# International Labor Day.
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dts_observed.add(self._add_labor_day(tr("Ngày Quốc tế Lao động")))
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# National Day.
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name = tr("Quốc khánh")
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dts_observed.add(sep_2 := self._add_holiday_sep_2(name))
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if self._year >= 2021:
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self._add_holiday(name, self._get_observed_date(sep_2, NATIONAL_DAY_RULE))
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if self.observed:
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self._add_lunar_new_year_observed(lny)
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self._populate_observed(dts_observed)
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class VN(Vietnam):
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pass
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class VNM(Vietnam):
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pass
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class VietnamStaticHolidays:
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"""Vietnam special holidays.
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References:
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* [2018-2019](https://web.archive.org/web/20250427182343/https://thuvienphapluat.vn/cong-van/EN/Lao-dong-Tien-luong/Official-Dispatch-6519-VPCP-KGVX-2018-national-holidays-for-public-sector-employees/387625/tieng-anh.aspx)
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* [2024](https://web.archive.org/web/20241002165957/https://thuvienphapluat.vn/cong-van/EN/Lao-dong-Tien-luong/Official-Dispatch-2450-VPCP-KGVX-2024-swap-of-working-days-during-the-Reunification-Day/606458/tieng-anh.aspx)
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"""
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# Date format (see strftime() Format Codes).
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substituted_date_format = tr("%d/%m/%Y")
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# Day off (substituted from %s).
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substituted_label = tr("Ngày nghỉ (thay cho ngày %s)")
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special_public_holidays = {
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2010: (FEB, 19, FEB, 27),
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2012: (JAN, 27, FEB, 4),
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2013: (APR, 29, MAY, 4),
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2014: (
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(MAY, 2, APR, 26),
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(SEP, 1, SEP, 6),
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),
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2015: (
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(JAN, 2, DEC, 27, 2014),
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(FEB, 16, FEB, 14),
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(APR, 29, APR, 25),
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),
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2018: (DEC, 31, JAN, 5, 2019),
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2019: (APR, 29, MAY, 4),
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2024: (APR, 29, MAY, 4),
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}
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