/*

 * 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.main;

import jdk.jpackage.internal.Arguments;

import jdk.jpackage.internal.Log;

import jdk.jpackage.internal.CLIHelp;

import java.io.PrintWriter;

import java.util.ResourceBundle;

public class Main {

    private static final ResourceBundle bundle = ResourceBundle.getBundle(

            "jdk.jpackage.internal.resources.MainResources");

    private static final String version = bundle.getString("MSG_Version")

            + " " + System.getProperty("java.version");

    /**

     * main(String... args)

     * This is the entry point for the jpackage tool.

     *

     * @param args command line arguments

     */

    public static void main(String... args) throws Exception {

        // Create logger with default system.out and system.err

        Log.Logger logger = new Log.Logger(false);

        Log.setLogger(logger);

        int status = run(args);

        System.exit(status);

    }

    /**

     * run() - this is the entry point for the ToolProvider API.

     *

     * @param out output stream

     * @param err error output stream

     * @param args command line arguments

     * @return an exit code. 0 means success, non-zero means an error occurred.

     */

    public static int run(PrintWriter out, PrintWriter err, String... args)

            throws Exception {

        // Create logger with provided streams

        Log.Logger logger = new Log.Logger(false);

        logger.setPrintWriter(out, err);

        Log.setLogger(logger);

        int status = run(args);

        Log.flush();

        return status;

    }

    private static int run(String... args) throws Exception {

        if (args.length == 0) {

            CLIHelp.showHelp(true);

        } else if (hasHelp(args)){

            if (hasVersion(args)) {

                Log.info(version + "\n");

            }

            CLIHelp.showHelp(false);

        } else if (hasVersion(args)) {

            Log.info(version);

        } else {

            try {

                Arguments arguments = new Arguments(args);

                if (!arguments.processArguments()) {

                    // processArguments() should log error message if failed.

                    return -1;

                }

            } catch (Exception e) {

                if (Log.isVerbose()) {

                    Log.verbose(e);

                } else {

                    Log.error(e.getMessage());

                    if (e.getCause() != null && e.getCause() != e) {

                        Log.error(e.getCause().getMessage());

                    }

                }

                return -1;

            }

        }

        return 0;

    }

    private static boolean hasHelp(String[] args) {

        for (String a : args) {

            if ("--help".equals(a) || "-h".equals(a)) {

                return true;

            }

        }

        return false;

    }

    private static boolean hasVersion(String[] args) {

        for (String a : args) {

            if ("--version".equals(a) || "-v".equals(a)) {

                return true;

            }

        }

        return false;

    }

}