#  holidays
#  --------
#  A fast, efficient Python library for generating country, province and state
#  specific sets of holidays on the fly. It aims to make determining whether a
#  specific date is a holiday as fast and flexible as possible.
#
#  Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
#           dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
#  Website: https://github.com/vacanza/holidays
#  License: MIT (see LICENSE file)

from holidays.calendars.gregorian import JUL
from holidays.groups import ChristianHolidays, InternationalHolidays, StaticHolidays
from holidays.observed_holiday_base import (
    ObservedHolidayBase,
    SAT_TO_NEXT_MON,
    SUN_TO_NEXT_MON,
    SUN_TO_NEXT_TUE,
)


class Botswana(ObservedHolidayBase, ChristianHolidays, InternationalHolidays, StaticHolidays):
    """Botswana holidays.

    References:
        * <https://www.gov.bw/public-holidays>
        * <https://publicholidays.africa/botswana/2021-dates/>
        * <https://www.timeanddate.com/holidays/botswana/>
        * <http://www.ilo.org/dyn/travail/docs/1766/Public%20Holidays%20Act.pdf>
    """

    country = "BW"
    observed_label = "%s (observed)"
    start_year = 1966

    def __init__(self, *args, **kwargs):
        ChristianHolidays.__init__(self)
        InternationalHolidays.__init__(self)
        StaticHolidays.__init__(self, BotswanaStaticHolidays)
        kwargs.setdefault("observed_rule", SUN_TO_NEXT_MON)
        kwargs.setdefault("observed_since", 1995)
        super().__init__(*args, **kwargs)

    def _populate_public_holidays(self):
        self._add_observed(self._add_new_years_day("New Year's Day"), rule=SUN_TO_NEXT_TUE)
        self._add_observed(self._add_new_years_day_two("New Year's Day Holiday"))

        self._add_good_friday("Good Friday")

        self._add_holy_saturday("Holy Saturday")

        self._add_easter_monday("Easter Monday")

        self._add_observed(may_1 := self._add_labor_day("Labour Day"))
        if self._year >= 2016:
            self._add_observed(
                may_1, name="Labour Day Holiday", rule=SAT_TO_NEXT_MON, show_observed_label=False
            )

        self._add_ascension_thursday("Ascension Day")

        self._add_observed(self._add_holiday_jul_1("Sir Seretse Khama Day"))

        self._add_holiday_3rd_mon_of_jul("President's Day")
        self._add_holiday_1_day_past_3rd_mon_of_jul("President's Day Holiday")

        self._add_observed(self._add_holiday_sep_30("Botswana Day"), rule=SUN_TO_NEXT_TUE)
        self._add_observed(self._add_holiday_oct_1("Botswana Day Holiday"))

        self._add_observed(self._add_christmas_day("Christmas Day"), rule=SUN_TO_NEXT_TUE)
        self._add_observed(dec_26 := self._add_christmas_day_two("Boxing Day"))

        if self._year >= 2016:
            self._add_observed(
                dec_26, name="Boxing Day Holiday", rule=SAT_TO_NEXT_MON, show_observed_label=False
            )


class BW(Botswana):
    pass


class BWA(Botswana):
    pass


class BotswanaStaticHolidays:
    special_public_holidays = {
        2019: (JUL, 2, "Public Holiday"),
    }