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/*
 * 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.maven.wrapper.cli;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * Command line option.
 */
public class CommandLineOption {
    private final Set options = new HashSet<>();

    private Class argumentType = Void.TYPE;

    private String description;

    private String subcommand;

    private String deprecationWarning;

    private boolean incubating;

    public CommandLineOption(Iterable options) {
        for (String option : options) {
            this.options.add(option);
        }
    }

    public Set getOptions() {
        return options;
    }

    public CommandLineOption hasArgument() {
        argumentType = String.class;
        return this;
    }

    public CommandLineOption hasArguments() {
        argumentType = List.class;
        return this;
    }

    public String getSubcommand() {
        return subcommand;
    }

    public CommandLineOption mapsToSubcommand(String command) {
        this.subcommand = command;
        return this;
    }

    public String getDescription() {
        StringBuilder result = new StringBuilder();
        if (description != null) {
            result.append(description);
        }
        if (deprecationWarning != null) {
            if (result.length() > 0) {
                result.append(' ');
            }
            result.append("[deprecated - ");
            result.append(deprecationWarning);
            result.append("]");
        }
        if (incubating) {
            if (result.length() > 0) {
                result.append(' ');
            }
            result.append("[incubating]");
        }
        return result.toString();
    }

    public CommandLineOption hasDescription(String description) {
        this.description = description;
        return this;
    }

    public boolean getAllowsArguments() {
        return argumentType != Void.TYPE;
    }

    public boolean getAllowsMultipleArguments() {
        return argumentType == List.class;
    }

    public CommandLineOption deprecated(String deprecationWarning) {
        this.deprecationWarning = deprecationWarning;
        return this;
    }

    public CommandLineOption incubating() {
        incubating = true;
        return this;
    }

    public String getDeprecationWarning() {
        return deprecationWarning;
    }
}