package com.fox2code.mmm.utils;

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Hashes {
    private static final char[] HEX_ARRAY = "0123456789abcdef".toCharArray();
    public static String bytesToHex(byte[] bytes) {
        char[] hexChars = new char[bytes.length * 2];
        for (int j = 0; j < bytes.length; j++) {
            int v = bytes[j] & 0xFF;
            hexChars[j * 2] = HEX_ARRAY[v >>> 4];
            hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F];
        }
        return new String(hexChars);
    }

    public static String hashSha1(String input) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-1");

            return bytesToHex(md.digest(input.getBytes(StandardCharsets.UTF_8)));
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
    }
}