/*

 * Copyright (c) 2016, 2019, 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

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 */

package jdk.jpackage.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;

final class ModuleManager {

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

    enum SearchType {UnnamedJar, ModularJar, Jmod, ExplodedModule}

    ModuleManager(String folders) {

        super();

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

        List<Path> paths = new ArrayList<Path>();

        for (String folder :

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

            File file = new File(folder);

            paths.add(file.toPath());

        }

        initialize(paths);

    }

    ModuleManager(List<Path> Paths) {

        super();

        initialize(Paths);

    }

    private void initialize(List<Path> Paths) {

        for (Path path : Paths) {

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

        }

    }

    List<ModFile> getModules(EnumSet<SearchType> Search) {

        List<ModFile> result = new ArrayList<ModFile>();

        for (String folder : folders) {

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

        }

        return result;

    }

    private static List<ModFile> getAllModulesInDirectory(String folder,

            EnumSet<SearchType> Search) {

        List<ModFile> result = new ArrayList<ModFile>();

        File lfolder = new File(folder);

        File[] files = { lfolder };

        if (lfolder.isDirectory()) {

            files = lfolder.listFiles();

        }

        if (files != null) {

            for (File file : files) {

                ModFile modFile = new ModFile(file);

                switch (modFile.getModType()) {

                    case Unknown:

                        break;

                    case UnnamedJar:

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

                            result.add(modFile);

                        }

                        break;

                    case ModularJar:

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

                            result.add(modFile);

                        }

                        break;

                    case Jmod:

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

                            result.add(modFile);

                        }

                        break;

                    case ExplodedModule:

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

                            result.add(modFile);

                        }

                        break;

                }

            }

        }

        return result;

    }

}