package com.anyoption.common.util;



import javax.crypto.Cipher;

import javax.crypto.spec.SecretKeySpec;



import java.net.URLEncoder;

import java.nio.charset.StandardCharsets;

import org.apache.commons.codec.binary.Base64;



public class TCToken {



	private static final String TCTOKEN_SECRET_KEY = "OyY1d0RbUiNidjp9JDBUMQ==";

	private static final byte[] key = org.apache.commons.codec.binary.Base64.decodeBase64(TCTOKEN_SECRET_KEY.getBytes());



	public static final String TCTOKEN_ID = "AnyOption";

	public static final String TCTOKEN_SEPARATOR = ",";



	static public void main(String args[]) throws Exception {

		String testString="AnyOption,VWUaI,fr,1473936700";

		byte[] plainData = testString.getBytes(StandardCharsets.UTF_8);

		System.out.println("!!!"+new String(key, StandardCharsets.UTF_8)+"!!!");

		System.out.println("!!!"+new String(encrypt(plainData, key), StandardCharsets.UTF_8)+"!!!");

		System.out.println("!!!"+new String(decrypt(encrypt(plainData, key), key), StandardCharsets.UTF_8)+"!!!");

		System.out.println("!!!"+getToken(testString)+"!!!");

	}



	private static byte[] encrypt(byte[] input, byte[] key) throws Exception {

		Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");

		SecretKeySpec keySpec = new SecretKeySpec(key, "Blowfish");

		cipher.init(Cipher.ENCRYPT_MODE, keySpec);

		return new Base64().encode(cipher.doFinal(input));

	}



	private static byte[] decrypt(byte[] input, byte[] key) throws Exception {

		Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");

		SecretKeySpec keySpec = new SecretKeySpec(key, "Blowfish");

		cipher.init(Cipher.DECRYPT_MODE, keySpec);

		return cipher.doFinal(new Base64().decode(input));

	}



	public static synchronized String encryptStringToString(String data) throws Exception {

		byte[] plainData = data.getBytes(StandardCharsets.UTF_8);

		return new String(encrypt(plainData, key), StandardCharsets.UTF_8);

	}



	public static synchronized String decryptStringToString(String data) throws Exception {

		byte[] encryptedData = data.getBytes(StandardCharsets.UTF_8);

		return new String(decrypt(encryptedData, key), StandardCharsets.UTF_8);

	}



	public static synchronized String getToken(String parts) {

		try {

			return URLEncoder.encode(encryptStringToString(parts), "UTF-8");

		} catch (Exception e) {

			e.printStackTrace();

			return "unable to process token";

		}

	}



}