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package com.clickntap.utils;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.clickntap.tool.types.Datetime;

public class WebUtils {

  public static final String KEY = "6oRfpzs/qLDRlYAwSmYpvg==";

  public static String getClientData(HttpServletRequest request, String key) {
    Cookie[] cookies = request.getCookies();
    for (int i = 0; cookies != null && i < cookies.length; i++) {
      Cookie cookie = cookies[i];
      if (cookie.getName().equals(key))
        return WebUtils.decryptClientData(cookie.getValue());
    }
    return null;
  }

  public static void setClientData(HttpServletResponse response, String key, String value) {
    value = WebUtils.encryptClientData(value);
    Cookie cookie = new Cookie(key, value);
    cookie.setPath(ConstUtils.SLASH);
    cookie.setMaxAge(Datetime.ONEYEARINSECONDS);
    response.addCookie(cookie);
  }

  public static String encryptClientData(String value) {
    try {
      // byte[] data =
      // SecurityUtils.encrypt(value.getBytes(ConstUtils.UTF_8),
      // Base64.decode(KEY.toCharArray()));
      // return new String(Base64.encode(data));
      return value;
    } catch (Exception e) {
      return null;
    }
  }

  public static String decryptClientData(String value) {
    try {
      // byte[] data = Base64.decode(value.toCharArray());
      // data = SecurityUtils.decrypt(data,
      // Base64.decode(KEY.toCharArray()));
      // return new String(data, ConstUtils.UTF_8);
      return value;
    } catch (Exception e) {
      return null;
    }
  }

  public static void main(String args[]) {
    try {
      System.out.println(java.util.Base64.getEncoder().encode(SecurityUtils.generateKey(128).getEncoded()));
    } catch (Exception e) {
      e.printStackTrace();
    }
    ;
    String key = "--test--";
    String cryptedKey = WebUtils.encryptClientData(key);
    System.out.println("cryptedKey:" + cryptedKey);
    System.out.println("key:" + WebUtils.decryptClientData(cryptedKey));
  }
}