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/*
 * Copyright 2002-2016 Jalal Kiswani.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.jk.util;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import com.jk.exceptions.handler.JKExceptionUtil;

import net.lingala.zip4j.core.ZipFile;
import net.lingala.zip4j.exception.ZipException;
import net.lingala.zip4j.model.ZipParameters;
import net.lingala.zip4j.util.Zip4jConstants;

/**
 * The Class JKCompressionUtil.
 *
 * @author Jalal Kiswani
 */
public class JKCompressionUtil {

	/**
	 * Compress.
	 *
	 * @param fileName
	 *            the file name
	 * @param compressedFileName
	 *            the compressed file name
	 * @param password
	 *            the password
	 */
	public static void compress(String fileName, String compressedFileName, String password) {
		try {
			ZipParameters zipParameters = new ZipParameters();
			zipParameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
			zipParameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_ULTRA);
			if (password != null) {
				zipParameters.setEncryptFiles(true);
				zipParameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);
				zipParameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);
				zipParameters.setPassword(password);
			}
			String destinationZipFilePath = compressedFileName;
			ZipFile zipFile = new ZipFile(destinationZipFilePath);
			zipFile.addFile(new File(fileName), zipParameters);
		} catch (ZipException e) {
			JKExceptionUtil.handle(e);
		}
	}

	/**
	 * Decompress.
	 *
	 * @param sourceZipFilePath
	 *            the source zip file path
	 * @param extractedZipFilePath
	 *            the extracted zip file path
	 * @param password
	 *            the password
	 */
	public void decompress(String sourceZipFilePath, String extractedZipFilePath, String password) {
		try {
			ZipFile zipFile = new ZipFile(sourceZipFilePath);
			if (zipFile.isEncrypted()) {
				zipFile.setPassword(password);
			}

			zipFile.extractAll(extractedZipFilePath);
		} catch (Exception e) {
			JKExceptionUtil.handle(e);
		}
	}

}