/**

 * Free Telco Dictionary

 * Copyright © 2013 František Kučera (frantovo.cz)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * 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

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

package cz.frantovo.telco.dictionary;

import java.io.DataOutputStream;

import java.io.IOException;

import java.nio.charset.StandardCharsets;

import java.util.Objects;

/**

 * Represents one item in StarDict synonyms file (.syn)

 * links the synonym term (string) to the position of the base term in index file

 * 

 * @author Ing. František Kučera (frantovo.cz)

 */

public class SynonymsEntry implements Comparable<SynonymsEntry> {

	private IndexEntry base;

	private String name;

	public SynonymsEntry(IndexEntry base, String name) {

		this.base = base;

		this.name = name;

	}

	public void serialize(DataOutputStream synonymOutputStream) throws IOException {

		synonymOutputStream.write(name.getBytes(StandardCharsets.UTF_8));

		synonymOutputStream.write(0);

		synonymOutputStream.writeInt((int) base.getOrdinal()); // unsigned int 32

	}

	@Override

	public int compareTo(SynonymsEntry o) {

		int nameDiff = name.compareTo(o.name);

		if (nameDiff == 0) {

			return base.compareTo(o.base);

		} else {

			return nameDiff;

		}

	}

	@Override

	public boolean equals(Object o) {

		return o instanceof IndexEntry && compareTo((SynonymsEntry) o) == 0;

	}

	@Override

	public int hashCode() {

		int hash = 3;

		hash = 47 * hash + Objects.hashCode(this.base);

		hash = 47 * hash + Objects.hashCode(this.name);

		return hash;

	}

}