package dev.kske.chess.uci;

import java.util.*;

/**
 * Project: <strong>Chess</strong><br>
 * File: <strong>UCIOption.java</strong><br>
 * Created: <strong>22.07.2019</strong><br>
 *
 * @since Chess v0.3-alpha
 * @author Kai S. K. Engelbart
 */
public class UCIOption {

	private String name, defaultVal, minVal, maxVal;
	private GUIType type;
	private List<String> varList;

	public UCIOption(String line) {
		varList = new ArrayList<>();
		String[] tokens = line.split(" ");

		for (int i = 0; i < tokens.length; i++)
			switch (tokens[i]) {
				case "name":
					StringJoiner nameJoiner = new StringJoiner(" ");
					while (
						!Arrays.asList("type", "default", "min", "max", "var")
							.contains(tokens[i + 1])
					)
						nameJoiner.add(tokens[++i]);
					name = nameJoiner.toString();
					break;
				case "type":
					type = GUIType.valueOf(tokens[++i].toUpperCase());
					break;
				case "default":
					// Default string may be empty
					defaultVal = i == tokens.length - 1 ? "" : tokens[++i];
					break;
				case "min":
					minVal = tokens[++i];
					break;
				case "max":
					maxVal = tokens[++i];
					break;
				case "var":
					varList.add(tokens[++i]);
					break;
				default:
					System.err.printf(
						"Unknown parameter '%s' for command 'option' found!%n",
						tokens[i]
					);
			}
	}

	public String getName() { return name; }

	public String getDefaultVal() { return defaultVal; }

	public String getMinVal() { return minVal; }

	public String getMaxVal() { return maxVal; }

	public GUIType getType() { return type; }

	public List<String> getVarList() { return varList; }

	public enum GUIType {
		CHECK, SPIN, COMBO, BUTTON, STRING
	}
}