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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.tomitribe.util;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class Zips {
    private Zips() {
    }

    public static void unzip(File zipFile, File destination) throws IOException {
        unzip(zipFile, destination, false);
    }

    public static void unzip(File zipFile, File destination, boolean noparent) throws IOException {
        Files.dir(destination);
        Files.writable(destination);
        Files.file(zipFile);
        Files.readable(zipFile);
        InputStream read = IO.read(zipFile);

        try {
            unzip(read, destination, noparent);
        } finally {
            IO.close(read);
        }

    }

    public static void unzip(InputStream read, File destination, boolean noparent) throws IOException {
        try {
            ZipInputStream e = new ZipInputStream(read);

            ZipEntry entry;
            while((entry = e.getNextEntry()) != null) {
                String path = entry.getName();
                if(noparent) {
                    path = path.replaceFirst("^[^/]+/", "");
                }

                File file = new File(destination, path);
                if(entry.isDirectory()) {
                    Files.mkdir(file);
                } else {
                    Files.mkdir(file.getParentFile());
                    IO.copy(e, file);
                    long lastModified = entry.getTime();
                    if(lastModified > 0L) {
                        file.setLastModified(lastModified);
                    }
                }
            }

            e.close();
        } catch (IOException var9) {
            throw new IOException("Unable to unzip " + read, var9);
        }
    }
}