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/*
 * Copyright (c) 2012 Imre Fazekas.
 *  All rights reserved.
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *
 *  Redistributions in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 *  Neither the name of the Brillien nor the names of its
 *  terms and concepts may be used to endorse or promote products derived from this
 *  software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

package com.vii.brillien.kernel.axiom.scheduling;

import java.util.ArrayList;

/**
 * 
 * A ValueMatcher whose rules are in a plain array of integer values. When asked
 * to validate a value, this ValueMatcher checks if it is in the array and, if
 * not, checks whether the last-day-of-month setting applies.
 * 
 */
public class DayOfMonthValueMatcher extends IntArrayValueMatcher {

    private static final int[] lastDays = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

    /**
     * Builds the ValueMatcher.
     *
     * @param integers An ArrayList of Integer elements, one for every value accepted
     *                 by the matcher. The match() method will return true only if
     *                 its parameter will be one of this list or the
     *                 last-day-of-month setting applies.
     */
    public DayOfMonthValueMatcher(ArrayList integers) {
        super(integers);
    }

    /**
     * Returns true if the given value is included in the matcher list or the
     * last-day-of-month setting applies.
     */
    public boolean match(int value, int month, boolean isLeapYear) {
        return (super.match(value) || (value > 27 && match(32) && isLastDayOfMonth(value, month, isLeapYear)));
    }

    public boolean isLastDayOfMonth(int value, int month, boolean isLeapYear) {
        if (isLeapYear && month == 2) {
            return value == 29;
        } else {
            return value == lastDays[month - 1];
        }
    }

}