package net.minecraft.util;

import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.lang3.StringUtils;
import org.jspecify.annotations.Nullable;

public class StringUtil {
	private static final Pattern STRIP_COLOR_PATTERN = Pattern.compile("(?i)\\u00A7[0-9A-FK-OR]");
	private static final Pattern LINE_PATTERN = Pattern.compile("\\r\\n|\\v");
	private static final Pattern LINE_END_PATTERN = Pattern.compile("(?:\\r\\n|\\v)$");

	public static String formatTickDuration(final int ticks, final float tickrate) {
		int seconds = Mth.floor(ticks / tickrate);
		int minutes = seconds / 60;
		seconds %= 60;
		int hours = minutes / 60;
		minutes %= 60;
		return hours > 0 ? String.format(Locale.ROOT, "%02d:%02d:%02d", hours, minutes, seconds) : String.format(Locale.ROOT, "%02d:%02d", minutes, seconds);
	}

	public static String stripColor(final String input) {
		return STRIP_COLOR_PATTERN.matcher(input).replaceAll("");
	}

	public static boolean isNullOrEmpty(@Nullable final String s) {
		return StringUtils.isEmpty(s);
	}

	public static String truncateStringIfNecessary(final String s, final int maxLength, final boolean addDotDotDotIfTruncated) {
		if (s.length() <= maxLength) {
			return s;
		} else {
			return addDotDotDotIfTruncated && maxLength > 3 ? s.substring(0, maxLength - 3) + "..." : s.substring(0, maxLength);
		}
	}

	public static int lineCount(final String s) {
		if (s.isEmpty()) {
			return 0;
		} else {
			Matcher matcher = LINE_PATTERN.matcher(s);
			int count = 1;

			while (matcher.find()) {
				count++;
			}

			return count;
		}
	}

	public static boolean endsWithNewLine(final String s) {
		return LINE_END_PATTERN.matcher(s).find();
	}

	public static String trimChatMessage(final String message) {
		return truncateStringIfNecessary(message, 256, false);
	}

	public static boolean isAllowedChatCharacter(final int ch) {
		return ch != 167 && ch >= 32 && ch != 127;
	}

	public static boolean isValidPlayerName(final String name) {
		return name.length() > 16 ? false : name.chars().filter(c -> c <= 32 || c >= 127).findAny().isEmpty();
	}

	public static String filterText(final String input) {
		return filterText(input, false);
	}

	public static String filterText(final String input, final boolean multiline) {
		StringBuilder builder = new StringBuilder();

		for (char c : input.toCharArray()) {
			if (isAllowedChatCharacter(c)) {
				builder.append(c);
			} else if (multiline && c == '\n') {
				builder.append(c);
			}
		}

		return builder.toString();
	}

	public static boolean isWhitespace(final int codepoint) {
		return Character.isWhitespace(codepoint) || Character.isSpaceChar(codepoint);
	}

	public static boolean isBlank(@Nullable final String string) {
		return string != null && !string.isEmpty() ? string.chars().allMatch(StringUtil::isWhitespace) : true;
	}
}