/*

 * Copyright (c) 2018, 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.util.Collection;

import java.util.HashMap;

import java.util.Map;

import java.io.File;

import jdk.jpackage.internal.Arguments.CLIOptions;

/*

 * AddLauncherArguments

 *

 * Processes a add-launcher properties file to create the Map of

 * bundle params applicable to the add-launcher:

 *

 * BundlerParams p = (new AddLauncherArguments(file)).getLauncherMap();

 *

 * A add-launcher is another executable program generated by either the

 * create-app-image mode or the create-installer mode.

 * The add-launcher may be the same program with different configuration,

 * or a completely different program created from the same files.

 *

 * There may be multiple add-launchers, each created by using the

 * command line arg "--add-launcher <file path>

 *

 * The add-launcher properties file may have any of:

 *

 * appVersion

 * module

 * main-jar

 * main-class

 * icon

 * arguments

 * java-options

 * win-console

 *

 */

class AddLauncherArguments {

    private final String name;

    private final String filename;

    private Map<String, String> allArgs;

    private Map<String, ? super Object> bundleParams;

    AddLauncherArguments(String name, String filename) {

        this.name = name;

        this.filename = filename;

    }

    private void initLauncherMap() {

        if (bundleParams != null) {

            return;

        }

        allArgs = Arguments.getPropertiesFromFile(filename);

        allArgs.put(CLIOptions.NAME.getId(), name);

        bundleParams = new HashMap<>();

        String mainJar = getOptionValue(CLIOptions.MAIN_JAR);

        String mainClass = getOptionValue(CLIOptions.APPCLASS);

        String module = getOptionValue(CLIOptions.MODULE);

        if (module != null && mainClass != null) {

            putUnlessNull(bundleParams, CLIOptions.MODULE.getId(),

                    module + "/" + mainClass);

        } else if (module != null) {

            putUnlessNull(bundleParams, CLIOptions.MODULE.getId(),

                    module);

        } else {

            putUnlessNull(bundleParams, CLIOptions.MAIN_JAR.getId(),

                    mainJar);

            putUnlessNull(bundleParams, CLIOptions.APPCLASS.getId(),

                    mainClass);

        }

        putUnlessNull(bundleParams, CLIOptions.NAME.getId(),

                getOptionValue(CLIOptions.NAME));

        putUnlessNull(bundleParams, CLIOptions.VERSION.getId(),

                getOptionValue(CLIOptions.VERSION));

        putUnlessNull(bundleParams, CLIOptions.RELEASE.getId(),

                getOptionValue(CLIOptions.RELEASE));

        putUnlessNull(bundleParams, CLIOptions.LINUX_CATEGORY.getId(),

                getOptionValue(CLIOptions.LINUX_CATEGORY));

        putUnlessNull(bundleParams,

                CLIOptions.WIN_CONSOLE_HINT.getId(),

                getOptionValue(CLIOptions.WIN_CONSOLE_HINT));

        String value = getOptionValue(CLIOptions.ICON);

        putUnlessNull(bundleParams, CLIOptions.ICON.getId(),

                (value == null) ? null : new File(value));

        String argumentStr = getOptionValue(CLIOptions.ARGUMENTS);

        putUnlessNullOrEmpty(bundleParams,

                CLIOptions.ARGUMENTS.getId(),

                Arguments.getArgumentList(argumentStr));

        String jvmargsStr = getOptionValue(CLIOptions.JAVA_OPTIONS);

        putUnlessNullOrEmpty(bundleParams,

                CLIOptions.JAVA_OPTIONS.getId(),

                Arguments.getArgumentList(jvmargsStr));

    }

    private String getOptionValue(CLIOptions option) {

        if (option == null || allArgs == null) {

            return null;

        }

        String id = option.getId();

        if (allArgs.containsKey(id)) {

            return allArgs.get(id);

        }

        return null;

    }

    Map<String, ? super Object> getLauncherMap() {

        initLauncherMap();

        return bundleParams;

    }

    private void putUnlessNull(Map<String, ? super Object> params,

            String param, Object value) {

        if (value != null) {

            params.put(param, value);

        }

    }

    private void putUnlessNullOrEmpty(Map<String, ? super Object> params,

            String param, Collection<?> value) {

        if (value != null && !value.isEmpty()) {

            params.put(param, value);

        }

    }

    static Map<String, ? super Object> merge(

            Map<String, ? super Object> original,

            Map<String, ? super Object> additional) {

        Map<String, ? super Object> tmp = new HashMap<>(original);

        if (additional.containsKey("module")) {

            tmp.remove("main-jar");

            tmp.remove("main-class");

        } else if (additional.containsKey("main-jar")) {

            tmp.remove("module");

        }

        tmp.putAll(additional);

        return tmp;

    }

}