/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 Copyright (C) 2000, 2001, 2002, 2003 RiskMap srl

 This file is part of QuantLib, a free-software/open-source library

 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it

 under the terms of the QuantLib license.  You should have received a

 copy of the license along with this program; if not, please email

 <quantlib-dev@lists.sf.net>. The license is also available online at

 <http://quantlib.org/license.shtml>.

 This program is distributed in the hope that it will be useful, but WITHOUT

 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

 FOR A PARTICULAR PURPOSE.  See the license for more details.

*/

#include <ql/time/calendars/sweden.hpp>

namespace QuantLib {

    Sweden::Sweden() {

        // all calendar instances share the same implementation instance

        static ext::shared_ptr<Calendar::Impl> impl(new Sweden::Impl);

        impl_ = impl;

    }

    bool Sweden::Impl::isBusinessDay(const Date& date) const {

        Weekday w = date.weekday();

        Day d = date.dayOfMonth(), dd = date.dayOfYear();

        Month m = date.month();

        Year y = date.year();

        Day em = easterMonday(y);

        if (isWeekend(w)

            // Good Friday

            || (dd == em-3)

            // Easter Monday

            || (dd == em)

            // Ascension Thursday

            || (dd == em+38)

            // Whit Monday (till 2004)

            || (dd == em+49 && y < 2005)

            // New Year's Day

            || (d == 1  && m == January)

            // Epiphany

            || (d == 6  && m == January)

            // May Day

            || (d == 1  && m == May)

            // National Day

            // Only a holiday since 2005

            || (d == 6 && m == June && y >= 2005)

            // Midsummer Eve (Friday between June 19-25)

            || (w == Friday && (d >= 19 && d <= 25) && m == June)

            // Christmas Eve

            || (d == 24 && m == December)

            // Christmas Day

            || (d == 25 && m == December)

            // Boxing Day

            || (d == 26 && m == December)

            // New Year's Eve

            || (d == 31 && m == December))

            return false; // NOLINT(readability-simplify-boolean-expr)

        return true;

    }

}