/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.grails.cli.command.install;

import java.util.List;

import joptsimple.OptionSet;
import joptsimple.OptionSpec;

import org.springframework.boot.cli.command.OptionParsingCommand;
import org.springframework.boot.cli.command.status.ExitStatus;
import org.springframework.boot.cli.util.Log;

import org.grails.cli.command.options.CompilerOptionHandler;

/**
 * {@link org.springframework.boot.cli.command.Command} to uninstall dependencies from the CLI's lib/ext directory.
 *
 * @author Dave Syer
 * @author Andy Wilkinson
 * @since 1.2.0
 */
public class UninstallCommand extends OptionParsingCommand {

    public UninstallCommand() {
        super("uninstall", "Uninstall dependencies from the lib/ext directory", new UninstallOptionHandler());
    }

    @Override
    public String getUsageHelp() {
        return "[options] <coordinates>";
    }

    private static class UninstallOptionHandler extends CompilerOptionHandler {

        private OptionSpec<Void> allOption;

        @Override
        protected void doOptions() {
            this.allOption = option("all", "Uninstall all");
        }

        @Override
        @SuppressWarnings("unchecked")
        protected ExitStatus run(OptionSet options) throws Exception {
            List<String> args = (List<String>) options.nonOptionArguments();
            try {
                if (options.has(this.allOption)) {
                    if (!args.isEmpty()) {
                        throw new IllegalArgumentException("Please use --all without specifying any dependencies");
                    }
                    new Installer(options, this).uninstallAll();
                }
                if (args.isEmpty()) {
                    throw new IllegalArgumentException(
                            "Please specify at least one dependency, in the form group:artifact:version, to uninstall");
                }
                new Installer(options, this).uninstall(args);
            }
            catch (Exception ex) {
                String message = ex.getMessage();
                Log.error((message != null) ? message : ex.getClass().toString());
            }
            return ExitStatus.OK;
        }

    }

}
