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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package jdk.jpackage.internal;

import static jdk.jpackage.internal.ApplicationBuilder.normalizeLauncherProperty;
import static jdk.jpackage.internal.ApplicationImageUtils.createLauncherIconResource;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Path;
import java.util.Optional;
import java.util.function.BiFunction;
import java.util.function.Function;
import jdk.jpackage.internal.PackagingPipeline.AppImageBuildEnv;
import jdk.jpackage.internal.PackagingPipeline.BuildApplicationTaskID;
import jdk.jpackage.internal.PackagingPipeline.CopyAppImageTaskID;
import jdk.jpackage.internal.PackagingPipeline.PrimaryTaskID;
import jdk.jpackage.internal.PackagingPipeline.TaskID;
import jdk.jpackage.internal.model.ApplicationLaunchers;
import jdk.jpackage.internal.model.ApplicationLayout;
import jdk.jpackage.internal.model.LauncherShortcut;
import jdk.jpackage.internal.model.WinApplication;
import jdk.jpackage.internal.model.WinLauncher;
import jdk.jpackage.internal.model.WinLauncherMixin;

final class WinPackagingPipeline {

    enum WinAppImageTaskID implements TaskID {
        REBRAND_LAUNCHERS
    }

    static PackagingPipeline.Builder build() {
        return PackagingPipeline.buildStandard()
                .task(CopyAppImageTaskID.COPY).noaction().add()
                .task(WinAppImageTaskID.REBRAND_LAUNCHERS)
                        .addDependency(BuildApplicationTaskID.LAUNCHERS)
                        .addDependent(PrimaryTaskID.BUILD_APPLICATION_IMAGE)
                        .applicationAction(WinPackagingPipeline::rebrandLaunchers).add();
    }

    static ApplicationLaunchers normalizeShortcuts(ApplicationLaunchers appLaunchers) {

        appLaunchers = normalizeShortcuts(appLaunchers, WinLauncher::startMenuShortcut, (launcher, shortcut) -> {
            return new WinLauncherMixin.Stub(launcher.isConsole(), shortcut, launcher.desktopShortcut());
        });

        appLaunchers = normalizeShortcuts(appLaunchers, WinLauncher::desktopShortcut, (launcher, shortcut) -> {
            return new WinLauncherMixin.Stub(launcher.isConsole(), launcher.startMenuShortcut(), shortcut);
        });

        return appLaunchers;
    }

    private static ApplicationLaunchers normalizeShortcuts(
            ApplicationLaunchers appLaunchers,
            Function<WinLauncher, Optional<LauncherShortcut>> shortcutGetter,
            BiFunction<WinLauncherMixin, Optional<LauncherShortcut>, WinLauncherMixin> shortcutOverrider) {
        return normalizeLauncherProperty(appLaunchers, launcher -> {
            // Return "true" if shortcut is not configured for the launcher.
            return shortcutGetter.apply(launcher).isEmpty();
        }, (WinLauncher launcher) -> {
            return shortcutGetter.apply(launcher).flatMap(LauncherShortcut::startupDirectory);
        }, (launcher, shortcut) -> {
            return WinLauncher.create(launcher, shortcutOverrider.apply(launcher, Optional.of(new LauncherShortcut(shortcut))));
        });
    }

    private static void rebrandLaunchers(AppImageBuildEnv<WinApplication, ApplicationLayout> env)
            throws IOException {
        for (var launcher : env.app().launchers()) {
            final var iconTarget = createLauncherIconResource(launcher, env.env()::createResource).map(iconResource -> {
                var iconDir = env.env().buildRoot().resolve("icons");
                var theIconTarget = iconDir.resolve(launcher.executableName() + ".ico");
                try {
                    if (null == iconResource.saveToFile(theIconTarget)) {
                        theIconTarget = null;
                    }
                } catch (IOException ex) {
                    throw new UncheckedIOException(ex);
                }
                return theIconTarget;
            });

            var launcherExecutable = env.resolvedLayout().launchersDirectory().resolve(
                    launcher.executableNameWithSuffix());

            // Update branding of launcher executable
            new ExecutableRebrander(env.app(),
                    (WinLauncher) launcher, env.env()::createResource).execute(
                            env.env(), launcherExecutable, iconTarget);
        }
    }

    static final ApplicationLayout APPLICATION_LAYOUT = ApplicationLayout.build()
            .setAll("")
            .appDirectory("app")
            .runtimeDirectory("runtime")
            .appModsDirectory(Path.of("app", "mods"))
            .create();
}