/*
 * 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
 *
 *      http://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.apache.jackrabbit.vault.util.console.examples;

import org.apache.commons.cli2.CommandLine;
import org.apache.commons.cli2.Option;
import org.apache.commons.cli2.builder.ArgumentBuilder;
import org.apache.commons.cli2.builder.CommandBuilder;
import org.apache.commons.cli2.builder.GroupBuilder;
import org.apache.commons.cli2.option.Command;
import org.apache.jackrabbit.vault.util.console.ExecutionContext;
import org.apache.jackrabbit.vault.util.console.commands.AbstractCommand;

/**
 * {@code CmdExit}...
 */
public class CmdHello extends AbstractCommand {

    private Option argName;

    protected void doExecute(ExecutionContext ctx, CommandLine cl)
            throws Exception {
        String name = (String) cl.getValue(argName);
        if (name == null) {
            System.out.println("Hello, world.");
        } else {
            System.out.println("Hello, " + name + ".");
        }
    }

    public String getShortDescription() {
        return "print hello";
    }

    protected Command createCommand() {
        return new CommandBuilder()
                .withName("hello")
                .withDescription(getShortDescription())
                .withChildren(new GroupBuilder()
                        .withName("Options:")
                        .withOption(argName = new ArgumentBuilder()
                                .withName("name")
                                .withDescription("print this name. default is 'world'")
                                .withMinimum(0)
                                .withMaximum(1)
                                .create()
                        )
                        .create()
                )
                .create();
    }
}