/*

 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

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

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.packager.internal;

import java.io.File;

import java.nio.file.Path;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.EnumSet;

import java.util.List;

public final class ModuleManager {

    private final List<String> folders = new ArrayList();

    public enum SearchType {UnnamedJar, ModularJar, Jmod, ExplodedModule}

    public ModuleManager(String folders) {

        super();

        String lfolders = folders.replaceAll("^\"|\"$", "");

        List<Path> paths = new ArrayList();

        for (String folder :

                Arrays.asList(lfolders.split(File.pathSeparator))) {

            File file = new File(folder);

            paths.add(file.toPath());

        }

        initialize(paths);

    }

    public ModuleManager(List<Path> Paths) {

        super();

        initialize(Paths);

    }

    private void initialize(List<Path> Paths) {

        for (Path path : Paths) {

            folders.add(path.toString().replaceAll("^\"|\"$", ""));

        }

    }

    public List<Module> getModules() {

        return getModules(EnumSet.of(SearchType.UnnamedJar,

                SearchType.ModularJar, SearchType.Jmod,

                SearchType.ExplodedModule));

    }

    public List<Module> getModules(EnumSet<SearchType> Search) {

        List<Module> result = new ArrayList();

        for (String folder : folders) {

            result.addAll(getAllModulesInDirectory(folder, Search));

        }

        return result;

    }

    private static List<Module> getAllModulesInDirectory(String Folder,

            EnumSet<SearchType> Search) {

        List<Module> result = new ArrayList();

        File lfolder = new File(Folder);

        File[] files = lfolder.listFiles();

        for (File file : files) {

            Module module = new Module(file);

            switch (module.getModuleType()) {

                case Unknown:

                    break;

                case UnnamedJar:

                    if (Search.contains(SearchType.UnnamedJar)) {

                        result.add(module);

                    }

                    break;

                case ModularJar:

                    if (Search.contains(SearchType.ModularJar)) {

                        result.add(module);

                    }

                    break;

                case Jmod:

                    if (Search.contains(SearchType.Jmod)) {

                        result.add(module);

                    }

                    break;

                case ExplodedModule:

                    if (Search.contains(SearchType.ExplodedModule)) {

                        result.add(module);

                    }

                    break;

            }

        }

        return result;

    }

}