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/*

    dsh-bio-tools  Command line tools.
    Copyright (c) 2013-2024 held jointly by the individual authors.

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published
    by the Free Software Foundation; either version 3 of the License, or (at
    your option) any later version.

    This library is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
    License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this library;  if not, write to the Free Software Foundation,
    Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.

    > http://www.fsf.org/licensing/licenses/lgpl.html
    > http://www.opensource.org/licenses/lgpl-license.php

*/
package org.dishevelled.bio.tools;

import java.nio.file.spi.FileSystemProvider;

import java.util.concurrent.Callable;

import org.dishevelled.commandline.ArgumentList;
import org.dishevelled.commandline.CommandLine;
import org.dishevelled.commandline.CommandLineParseException;
import org.dishevelled.commandline.CommandLineParser;
import org.dishevelled.commandline.Switch;
import org.dishevelled.commandline.Usage;

/**
 * List installed filesystem providers.
 *
 * @since 2.1
 * @author  Michael Heuer
 */
public final class ListFilesystems implements Callable {
    private static final String USAGE = "dsh-list-filesystems [args]";

    @Override
    public Integer call() throws Exception {
        System.out.println("Installed filesystem providers:");
        for (FileSystemProvider p : FileSystemProvider.installedProviders()) {
            System.out.println("  " + p.getScheme() + "\t" + p.getClass().getName());
        }
        return 0;
    }

    /**
     * Main.
     *
     * @param args command line args
     */
    public static void main(final String[] args) {
        Switch about = new Switch("a", "about", "display about message");
        Switch help = new Switch("h", "help", "display help message");

        ArgumentList arguments = new ArgumentList(about, help);
        CommandLine commandLine = new CommandLine(args);

        ListFilesystems listFilesystems = null;
        try
        {
            CommandLineParser.parse(commandLine, arguments);
            if (about.wasFound()) {
                About.about(System.out);
                System.exit(0);
            }
            if (help.wasFound()) {
                Usage.usage(USAGE, null, commandLine, arguments, System.out);
                System.exit(0);
            }
            listFilesystems = new ListFilesystems();
        }
        catch (CommandLineParseException e) {
            Usage.usage(USAGE, e, commandLine, arguments, System.err);
            System.exit(-1);
        }
        try {
            System.exit(listFilesystems.call());
        }
        catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
    }
}