/* -*- 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/target.hpp>

namespace QuantLib {

    TARGET::TARGET() {

        // all calendar instances share the same implementation instance

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

        impl_ = impl;

    }

    bool TARGET::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)

            // New Year's Day

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

            // Good Friday

            || (dd == em-3 && y >= 2000)

            // Easter Monday

            || (dd == em && y >= 2000)

            // Labour Day

            || (d == 1  && m == May && y >= 2000)

            // Christmas

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

            // Day of Goodwill

            || (d == 26 && m == December && y >= 2000)

            // December 31st, 1998, 1999, and 2001 only

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

                (y == 1998 || y == 1999 || y == 2001)))

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

        return true;

    }

}