/*
 * Copyright (C) 2020 Matthias Heizmann (heizmann@informatik.uni-freiburg.de)
 * Copyright (C) 2020 University of Freiburg
 *
 * This file is part of the ULTIMATE Automata Library.
 *
 * The ULTIMATE Automata Library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * The ULTIMATE Automata Library 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
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the ULTIMATE Automata Library. If not, see <http://www.gnu.org/licenses/>.
 *
 * Additional permission under GNU GPL version 3 section 7:
 * If you modify the ULTIMATE Automata Library, or any covered work, by linking
 * or combining it with Eclipse RCP (or a modified version of Eclipse RCP),
 * containing parts covered by the terms of the Eclipse Public License, the
 * licensors of the ULTIMATE Automata Library grant you additional permission
 * to convey the resulting work.
 */
package de.uni_freiburg.informatik.ultimate.automata.counting;

import java.util.ArrayList;

/**
 * Implementation of a method to conjunct two given DNF into a single DNF
 *
 * @author Marcel Ebbinghaus
 * @author who is the author?
 */

public class ConjunctGuards {
	
	private ArrayList<ArrayList<Guard>> mFstGuardDNF;
	private ArrayList<ArrayList<Guard>> mSndGuardDNF;
	private ArrayList<ArrayList<Guard>> mResult;
	
	public ConjunctGuards(ArrayList<ArrayList<Guard>> fstDNF, ArrayList<ArrayList<Guard>> sndDNF) {
		mFstGuardDNF = fstDNF;
		mSndGuardDNF = sndDNF;
		
		mResult = computeResult();
	}
	
	private ArrayList<ArrayList<Guard>> computeResult(){
		ArrayList<ArrayList<Guard>> resultDNF = new ArrayList<ArrayList<Guard>>();
		for (ArrayList<Guard> fstList : mFstGuardDNF) {
			for (ArrayList<Guard> sndList : mSndGuardDNF) {
				ArrayList<Guard> tempGuard = new ArrayList<Guard>();
				for (Guard fstGuard : fstList) {
					tempGuard.add(fstGuard.copyGuard());
				}
				for (Guard sndGuard : sndList) {
					tempGuard.add(sndGuard.copyGuard());
				}
				resultDNF.add(tempGuard);
			}
		}
		return resultDNF;
	}
	
	public ArrayList<ArrayList<Guard>> getResult() {
		return mResult;
	}

}