//
// MIT License
//
// Copyright (c) 2021 Alexander Söderberg & Contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
package cloud.commandframework.exceptions;

import cloud.commandframework.Command;
import cloud.commandframework.arguments.CommandArgument;
import org.checkerframework.checker.nullness.qual.NonNull;

/**
 * Thrown when a {@link CommandArgument}
 * that is registered as a leaf node, does not contain an owning {@link Command}
 */
@SuppressWarnings("unused")
public final class NoCommandInLeafException extends IllegalStateException {

    private static final long serialVersionUID = 3373529875213310821L;
    private final CommandArgument<?, ?> commandArgument;

    /**
     * Create a new no command in leaf exception instance
     *
     * @param commandArgument Command argument that caused the exception
     */
    public NoCommandInLeafException(final @NonNull CommandArgument<?, ?> commandArgument) {
        super(String.format("Leaf node '%s' does not have associated owning command", commandArgument.getName()));
        this.commandArgument = commandArgument;
    }

    /**
     * Get the command argument
     *
     * @return Command argument
     */
    public @NonNull CommandArgument<?, ?> getCommandArgument() {
        return this.commandArgument;
    }

}
