package org.bukkit.conversations;

import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.BooleanUtils;

/**
 * BooleanPrompt is the base class for any prompt that requires a boolean
 * response from the user.
 */
public abstract class BooleanPrompt extends ValidatingPrompt
{

	public BooleanPrompt()
	{
		super();
	}

	@Override
	protected boolean isInputValid(ConversationContext context, String input)
	{
		String[] accepted = {"true", "false", "on", "off", "yes", "no" /* Spigot: */, "y", "n", "1", "0", "right", "wrong", "correct", "incorrect", "valid", "invalid"}; // Spigot
		return ArrayUtils.contains(accepted, input.toLowerCase());
	}

	@Override
	protected Prompt acceptValidatedInput(ConversationContext context, String input)
	{
		if(input.equalsIgnoreCase("y") || input.equals("1") || input.equalsIgnoreCase("right") || input.equalsIgnoreCase("correct") || input.equalsIgnoreCase("valid")) input = "true"; // Spigot
		return acceptValidatedInput(context, BooleanUtils.toBoolean(input));
	}

	/**
	 * Override this method to perform some action with the user's boolean
	 * response.
	 *
	 * @param context Context information about the conversation.
	 * @param input   The user's boolean response.
	 * @return The next {@link Prompt} in the prompt graph.
	 */
	protected abstract Prompt acceptValidatedInput(ConversationContext context, boolean input);
}