/*
 * 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.surefire.api.booter;

/**
 * Specifies the way how the forked jvm should be terminated after
 * class AbstractCommandStream is closed and CTRL+C.
 *
 * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
 * @since 2.19
 */
public enum Shutdown {
    DEFAULT("testset"),
    EXIT("exit"),
    KILL("kill");

    private final String param;

    Shutdown(String param) {
        this.param = param;
    }

    public String getParam() {
        return param;
    }

    public boolean isKill() {
        return this == KILL;
    }

    public boolean isExit() {
        return this == EXIT;
    }

    public boolean isDefaultShutdown() {
        return this == DEFAULT;
    }

    public static boolean isKnown(String param) {
        for (Shutdown shutdown : values()) {
            if (shutdown.param.equals(param)) {
                return true;
            }
        }
        return false;
    }

    public static String listParameters() {
        StringBuilder values = new StringBuilder();
        for (Shutdown shutdown : values()) {
            if (values.length() != 0) {
                values.append(", ");
            }
            values.append(shutdown.getParam());
        }
        return values.toString();
    }

    public static Shutdown parameterOf(String parameter) {
        for (Shutdown shutdown : values()) {
            if (shutdown.param.equals(parameter)) {
                return shutdown;
            }
        }
        return DEFAULT;
    }
}
