/*

 * Copyright (c) 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

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

 * questions.

 */

package jdk.jpackage.internal;

import java.nio.file.Path;

import java.util.Map;

/**

 * Application directory layout.

 */

public final class ApplicationLayout implements PathGroup.Facade<ApplicationLayout> {

    enum PathRole {

        RUNTIME, APP, LAUNCHERS, DESKTOP, APP_MODS, DLLS

    }

    ApplicationLayout(Map<Object, Path> paths) {

        data = new PathGroup(paths);

    }

    private ApplicationLayout(PathGroup data) {

        this.data = data;

    }

    @Override

    public PathGroup pathGroup() {

        return data;

    }

    @Override

    public ApplicationLayout resolveAt(Path root) {

        return new ApplicationLayout(pathGroup().resolveAt(root));

    }

    /**

     * Path to launchers directory.

     */

    public Path launchersDirectory() {

        return pathGroup().getPath(PathRole.LAUNCHERS);

    }

    /**

     * Path to directory with dynamic libraries.

     */

    public Path dllDirectory() {

        return pathGroup().getPath(PathRole.DLLS);

    }

    /**

     * Path to application data directory.

     */

    public Path appDirectory() {

        return pathGroup().getPath(PathRole.APP);

    }

    /**

     * Path to Java runtime directory.

     */

    public Path runtimeDirectory() {

        return pathGroup().getPath(PathRole.RUNTIME);

    }

    /**

     * Path to application mods directory.

     */

    public Path appModsDirectory() {

        return pathGroup().getPath(PathRole.APP_MODS);

    }

    /**

     * Path to directory with application's desktop integration files.

     */

    public Path destktopIntegrationDirectory() {

        return pathGroup().getPath(PathRole.DESKTOP);

    }

    static ApplicationLayout linuxAppImage() {

        return new ApplicationLayout(Map.of(

                PathRole.LAUNCHERS, Path.of("bin"),

                PathRole.APP, Path.of("lib/app"),

                PathRole.RUNTIME, Path.of("lib/runtime"),

                PathRole.DESKTOP, Path.of("lib"),

                PathRole.DLLS, Path.of("lib"),

                PathRole.APP_MODS, Path.of("lib/app/mods")

        ));

    }

    static ApplicationLayout windowsAppImage() {

        return new ApplicationLayout(Map.of(

                PathRole.LAUNCHERS, Path.of(""),

                PathRole.APP, Path.of("app"),

                PathRole.RUNTIME, Path.of("runtime"),

                PathRole.DESKTOP, Path.of(""),

                PathRole.DLLS, Path.of(""),

                PathRole.APP_MODS, Path.of("app/mods")

        ));

    }

    static ApplicationLayout macAppImage() {

        return new ApplicationLayout(Map.of(

                PathRole.LAUNCHERS, Path.of("Contents/MacOS"),

                PathRole.APP, Path.of("Contents/app"),

                PathRole.RUNTIME, Path.of("Contents/runtime"),

                PathRole.DESKTOP, Path.of("Contents/Resources"),

                PathRole.DLLS, Path.of("Contents/MacOS"),

                PathRole.APP_MODS, Path.of("Contents/app/mods")

        ));

    }

    public static ApplicationLayout platformAppImage() {

        if (Platform.isWindows()) {

            return windowsAppImage();

        }

        if (Platform.isLinux()) {

            return linuxAppImage();

        }

        if (Platform.isMac()) {

            return macAppImage();

        }

    }

    static ApplicationLayout javaRuntime() {

        return new ApplicationLayout(Map.of(PathRole.RUNTIME, Path.of("")));

    }

    private final PathGroup data;

}