package com.chz.utils;

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

public class ZipperUtils {

    public static final String ORIGINAL_PATH = "files/original";
    public static final String UNZIP_PATH = "files/unzipped";
    public static final String ZIP_PATH = "files/zipped";
    public static final String ZIP_FILE_NAME = "out.zip";
    public static final long DEFAULT_SIZE = 524288000;   // 500M in bytes
    public static final String CURRENT_DIR = System.getProperty("user.dir");

    public void zip() {
        try {
            ZipFile zipFile = new ZipFile(ZIP_PATH + "/" + ZIP_FILE_NAME);

            ZipParameters parameters = new ZipParameters();
            parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
            parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);

            zipFile.createZipFileFromFolder(CURRENT_DIR + "/" + ORIGINAL_PATH, parameters, true, DEFAULT_SIZE);
        } catch (ZipException e) {
            e.printStackTrace();
        }
    }

    public void unzip() {
        String source = CURRENT_DIR + "/" + ZIP_PATH + "/" + ZIP_FILE_NAME;
        String destination = CURRENT_DIR + "/" + UNZIP_PATH;

        try {
            ZipFile zipFile = new ZipFile(source);
            zipFile.extractAll(destination);
        } catch (ZipException e) {
            e.printStackTrace();
        }
    }
}