/*

 * Copyright (c) 2012, 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.

 */

import java.io.File;

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URL;

import java.text.MessageFormat;

import java.util.Arrays;

import java.util.Collection;

import java.util.Map;

import java.util.ResourceBundle;

public class LinuxAppBundler extends AbstractImageBundler {

    private static final ResourceBundle I18N = ResourceBundle.getBundle(

    private static final String EXECUTABLE_NAME = "JavaAppLauncher";

    public static final BundlerParamInfo<File> ICON_PNG =

            new StandardBundlerParam<>(

            I18N.getString("param.icon-png.name"),

            I18N.getString("param.icon-png.description"),

            "icon.png",

            File.class,

            params -> {

                File f = ICON.fetchFrom(params);

                if (f != null && !f.getName().toLowerCase().endsWith(".png")) {

                    Log.error(MessageFormat.format(

                            I18N.getString("message.icon-not-png"), f));

                    return null;

                }

                return f;

            },

            (s, p) -> new File(s));

    public static final BundlerParamInfo<String> LINUX_INSTALL_DIR =

            new StandardBundlerParam<>(

            I18N.getString("param.linux-install-dir.name"),

            I18N.getString("param.linux-install-dir.description"),

            "linux-install-dir",

            String.class,

            params -> {

                 String dir = INSTALL_DIR.fetchFrom(params);

                 if (dir != null) {

                     if (dir.endsWith("/")) {

                         dir = dir.substring(0, dir.length()-1);

                     }

                     return dir;

                 }

                 return "/opt";

             },

            (s, p) -> s

    );

    public static final BundlerParamInfo<String> LINUX_PACKAGE_DEPENDENCIES =

            new StandardBundlerParam<>(

            I18N.getString("param.linux-package-dependencies.name"),

            I18N.getString("param.linux-package-dependencies.description"),

            Arguments.CLIOptions.LINUX_PACKAGE_DEPENDENCIES.getId(),

            String.class,

            params -> {

                 return "";

             },

            (s, p) -> s

    );

    @Override

    public boolean validate(Map<String, ? super Object> p)

            throws UnsupportedPlatformException, ConfigException {

        try {

            if (p == null) throw new ConfigException(

                    I18N.getString("error.parameters-null"),

                    I18N.getString("error.parameters-null.advice"));

            return doValidate(p);

        } catch (RuntimeException re) {

            if (re.getCause() instanceof ConfigException) {

                throw (ConfigException) re.getCause();

            } else {

                throw new ConfigException(re);

            }

        }

    }

    //used by chained bundlers to reuse validation logic

    boolean doValidate(Map<String, ? super Object> p)

            throws UnsupportedPlatformException, ConfigException {

        if (Platform.getPlatform() != Platform.LINUX) {

            throw new UnsupportedPlatformException();

        }

        imageBundleValidation(p);

        return true;

    }

    // it is static for the sake of sharing with "installer" bundlers

    // that may skip calls to validate/bundle in this class!

    public static File getRootDir(File outDir, Map<String, ? super Object> p) {

        return new File(outDir, APP_FS_NAME.fetchFrom(p));

    }

    public static String getLauncherCfgName(Map<String, ? super Object> p) {

        return "app/" + APP_FS_NAME.fetchFrom(p) +".cfg";

    }

    File doBundle(Map<String, ? super Object> p, File outputDirectory,

            boolean dependentTask) {

        if (Arguments.CREATE_JRE_INSTALLER.fetchFrom(p)) {

            return doJreBundle(p, outputDirectory, dependentTask);

        } else {

            return doAppBundle(p, outputDirectory, dependentTask);

        }

    }

    private File doJreBundle(Map<String, ? super Object> p,

            File outputDirectory, boolean dependentTask) {

        try {

            File rootDirectory = createRoot(p, outputDirectory, dependentTask,

                    APP_FS_NAME.fetchFrom(p), "linuxapp-image-builder");

            AbstractAppImageBuilder appBuilder = new LinuxAppImageBuilder(

                    APP_NAME.fetchFrom(p), outputDirectory.toPath());

            File predefined = PREDEFINED_RUNTIME_IMAGE.fetchFrom(p);

            if (predefined == null ) {

                JLinkBundlerHelper.generateServerJre(p, appBuilder);

            } else {

                return predefined;

            }

            return rootDirectory;

        } catch (Exception ex) {

            Log.error("Exception: "+ex);

            Log.debug(ex);

            return null;

        }

    }

    private File doAppBundle(Map<String, ? super Object> p,

            File outputDirectory, boolean dependentTask) {

        try {

            File rootDirectory = createRoot(p, outputDirectory, dependentTask,

                    APP_FS_NAME.fetchFrom(p), "linuxapp-image-builder");

            AbstractAppImageBuilder appBuilder = new LinuxAppImageBuilder(p,

                    outputDirectory.toPath());

            if (PREDEFINED_RUNTIME_IMAGE.fetchFrom(p) == null ) {

                JLinkBundlerHelper.execute(p, appBuilder);

            } else {

                StandardBundlerParam.copyPredefinedRuntimeImage(p, appBuilder);

            }

            return rootDirectory;

        } catch (Exception ex) {

            Log.error("Exception: "+ex);

            Log.debug(ex);

            return null;

        }

    }

    @Override

    public String getName() {

        return I18N.getString("bundler.name");

    }

    @Override

    public String getDescription() {

        return I18N.getString("bundler.description");

    }

    @Override

    public String getID() {

        return "linux.app";

    }

    @Override

    public String getBundleType() {

        return "IMAGE";

    }

    @Override

    public Collection<BundlerParamInfo<?>> getBundleParameters() {

        return getAppBundleParameters();

    }

    public static Collection<BundlerParamInfo<?>> getAppBundleParameters() {

        return Arrays.asList(

                APP_NAME,

                APP_RESOURCES,

                ARGUMENTS,

                CLASSPATH,

                JVM_OPTIONS,

                JVM_PROPERTIES,

                MAIN_CLASS,

                MAIN_JAR,

                PREFERENCES_ID,

                VERSION,

                VERBOSE

        );

    }

    @Override

    public File execute(Map<String, ? super Object> params,

            File outputParentDir) {

        return doBundle(params, outputParentDir, false);

    }

    @Override    

    public boolean supported() {

        return (Platform.getPlatform() == Platform.LINUX);

    }

}