# -*- coding: utf-8 -*-

#  python-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.
#
#  Author:  ryanss <ryanssdev@icloud.com> (c) 2014-2017
#           dr-prodigy <maurizio.montel@gmail.com> (c) 2017-2020
#  Website: https://github.com/dr-prodigy/python-holidays
#  License: MIT (see LICENSE file)

import warnings
from datetime import date

from dateutil.easter import easter
from dateutil.relativedelta import relativedelta as rd

from holidays.constants import JAN, MAY, JUL, SEP, OCT, \
    NOV, DEC
from holidays.holiday_base import HolidayBase


class Czechia(HolidayBase):
    # https://en.wikipedia.org/wiki/Public_holidays_in_the_Czech_Republic

    def __init__(self, **kwargs):
        self.country = 'CZ'
        HolidayBase.__init__(self, **kwargs)

    def _populate(self, year):
        self[date(year, JAN, 1)] = "Den obnovy samostatného českého" \
                                   " státu" \
            if year >= 2000 else \
            "Nový rok"

        e = easter(year)
        if year <= 1951 or year >= 2016:
            self[e - rd(days=2)] = "Velký pátek"
        self[e + rd(days=1)] = "Velikonoční pondělí"

        if year >= 1951:
            self[date(year, MAY, 1)] = "Svátek práce"
        if year >= 1992:
            self[date(year, MAY, 8)] = "Den vítězství"
        elif year >= 1947:
            self[date(year, MAY, 9)] = "Den vítězství nad hitlerovským" \
                                       " fašismem"
        if year >= 1951:
            self[date(year, JUL, 5)] = "Den slovanských věrozvěstů " \
                "Cyrila a Metoděje"
            self[date(year, JUL, 6)] = "Den upálení mistra Jana Husa"
        if year >= 2000:
            self[date(year, SEP, 28)] = "Den české státnosti"
        if year >= 1951:
            self[date(year, OCT, 28)] = "Den vzniku samostatného " \
                "československého státu"
        if year >= 1990:
            self[date(year, NOV, 17)] = "Den boje za svobodu a demokracii"

        if year >= 1990:
            self[date(year, DEC, 24)] = "Štědrý den"
        if year >= 1951:
            self[date(year, DEC, 25)] = "1. svátek vánoční"
            self[date(year, DEC, 26)] = "2. svátek vánoční"


class CZ(Czechia):
    pass


class CZE(Czechia):
    pass


class Czech(Czechia):
    def __init__(self, **kwargs):
        warnings.warn("Czech is deprecated, use Czechia instead.",
                      DeprecationWarning)
        super(Czech, self).__init__(**kwargs)