/**
   * Interface: PUT /yes-api/rest/auth/login
   *
   * <p>
   *
   * <p>Login interface that allows to authenticate user cart. The token for the authenticated cart
   * is returned back as response header and also as a cookie.
   *
   * <p>
   *
   * <p>
   *
   * <h3>Headers for operation</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>Content-Type</td><td>application/json or application/xml</td></tr>
   *     <tr><td>Accept</td><td>application/json or application/xml</td></tr>
   *     <tr><td>yc</td><td>token uuid (optional)</td></tr>
   * </table>
   *
   * <p>
   *
   * <p>
   *
   * <h3>Parameters for login PUT operation</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>JSON example</td><td>
   * <pre><code>
   * {
   *    "username": "******",
   *    "password": "******",
   *    "activate": true
   * }
   * </code></pre>
   *     </td></tr>
   *     <tr><td>XML example</td><td>
   * <pre><code>
   * &lt;login&gt;
   *    &lt;username&gt;[email protected]&lt;/username&gt;
   *    &lt;password&gt;bBuyM-6-&lt;/password&gt;
   *    &lt;activate&gt;true&lt;/activate&gt;
   * &lt;/login&gt;
   * </code></pre>
   *     </td></tr>
   * </table>
   *
   * <p>
   *
   * <p>
   *
   * <h3>Output</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>JSON example</td><td>
   * <pre><code>
   * {
   *    "success" : true,
   *    "greeting" : "Bob Doe",
   *    "token" : {
   *        "uuid" : "1db8def2-21e0-44d2-aeb0-56baae761129"
   *    },
   *    "error" : null
   * }
   * </code></pre>
   *     </td></tr>
   *     <tr><td>XML example</td><td>
   * <pre><code>
   * &lt;authentication-result&gt;
   *    &lt;greeting&gt;Bob Doe&lt;/greeting&gt;
   *    &lt;success&gt;true&lt;/success&gt;
   *    &lt;token&gt;
   *       &lt;uuid&gt;1db8def2-21e0-44d2-aeb0-56baae761129&lt;/uuid&gt;
   *    &lt;/token&gt;
   * &lt;/authentication-result&gt;
   * </code></pre>
   *     </td></tr>
   * </table>
   *
   * <p>
   *
   * <p>
   *
   * <h3>Error codes</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>USER_FAILED</td><td>user does not exist</td></tr>
   *     <tr><td>AUTH_FAILED</td><td>user exists but credentials are not valid</td></tr>
   *     <tr><td>INACTIVE_FOR_SHOP</td><td>user exists but profile is active for given shop, use activate=true to force activation on login</td></tr>
   * </table>
   *
   * @param loginRO login parameters (see examples above)
   * @param request request
   * @param response response
   * @return authentication result
   */
  @RequestMapping(
      value = "/login",
      method = RequestMethod.PUT,
      produces = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE})
  public @ResponseBody AuthenticationResultRO login(
      final @RequestBody LoginRO loginRO,
      final HttpServletRequest request,
      final HttpServletResponse response) {

    final Customer customer = customerServiceFacade.getCustomerByEmail(loginRO.getUsername());

    if (customer != null) {

      do {

        executeLoginCommand(loginRO.getUsername(), loginRO.getPassword());

        final TokenRO token = cartMixin.persistShoppingCart(request, response);

        ShoppingCart cart = cartMixin.getCurrentCart();
        final int logOnState = cart.getLogonState();
        if (logOnState == ShoppingCart.LOGGED_IN) {

          return new AuthenticationResultRO(cart.getCustomerName(), token);

        } else if (logOnState == ShoppingCart.INACTIVE_FOR_SHOP) {

          if (loginRO.isActivate()) {
            // Login again with inactive state adds customer to shop
            continue;
          }

          return new AuthenticationResultRO("INACTIVE_FOR_SHOP");

        } else {

          // any other state should break to AUTH_FAILED
          break;
        }

      } while (true);

      return new AuthenticationResultRO("AUTH_FAILED");
    }

    return new AuthenticationResultRO("USER_FAILED");
  }
  /**
   * Interface: PUT /yes-api/rest/auth/register
   *
   * <p>
   *
   * <p>Register interface that allows to register user. The token for the authenticated cart is
   * returned back as response header and also as a cookie.
   *
   * <p>
   *
   * <p>
   *
   * <h3>Headers for operation</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>Content-Type</td><td>application/json or application/xml</td></tr>
   *     <tr><td>Accept</td><td>application/json or application/xml</td></tr>
   *     <tr><td>yc</td><td>token uuid (optional)</td></tr>
   * </table>
   *
   * <p>
   *
   * <p>
   *
   * <h3>Parameters for register PUT operation</h3>
   *
   * <p>
   *
   * <p>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>JSON example:</td><td>
   * <pre><code>
   * {
   *    "email" : "*****@*****.**",
   *    "firstname" : "Bob",
   *    "lastname" : "Doe",
   *    "phone" : "123123123123",
   *    "custom" : {
   *        "attr1": "value1",
   *        "attr2": "value2",
   *        ...
   *        "attrN": "valueN"
   *    }
   * }
   * </code></pre>
   *     </td></tr>
   *     <tr><td>XML example:</td><td>
   * <pre><code>
   * &lt;login&gt;
   *    &lt;email&gt;[email protected]&lt;/email&gt;
   *    &lt;firstname&gt;Bob&lt;/firstname&gt;
   *    &lt;lastname&gt;Doe&lt;/lastname&gt;
   *    &lt;phone&gt;123123123123&lt;/phone&gt;
   *    &lt;custom&gt;
   *        &lt;entry key="attr1"&gt;value1&lt;/entry&gt;
   *        &lt;entry key="attr2"&gt;value2&lt;/entry&gt;
   *        ...
   *        &lt;entry key="attrN"&gt;valueN&lt;/entry&gt;
   *    &lt;/custom&gt;
   * &lt;/login&gt;
   * </code></pre>
   *     </td></tr>
   * </table>
   *
   * <p>
   *
   * <p>
   *
   * <h3>Output</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>JSON example</td><td>
   * <pre><code>
   * {
   *    "success" : true,
   *    "greeting" : "Bob Doe",
   *    "token" : {
   *        "uuid" : "1db8def2-21e0-44d2-aeb0-56baae761129"
   *    },
   *    "error" : null
   * }
   * </code></pre>
   *     </td></tr>
   *     <tr><td>XML example</td><td>
   * <pre><code>
   * &lt;authentication-result&gt;
   *    &lt;greeting&gt;Bob Doe&lt;/greeting&gt;
   *    &lt;success&gt;true&lt;/success&gt;
   *    &lt;token&gt;
   *       &lt;uuid&gt;1db8def2-21e0-44d2-aeb0-56baae761129&lt;/uuid&gt;
   *    &lt;/token&gt;
   * &lt;/authentication-result&gt;
   * </code></pre>
   *     </td></tr>
   * </table>
   *
   * <p>
   *
   * <p>
   *
   * <h3>Error codes</h3>
   *
   * <p>
   *
   * <table border="1">
   *     <tr><td>EMAIL_FAILED</td><td>email must be more than 6 and less than 256 chars (^[_A-Za-z0-9-]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*((\.[A-Za-z]{2,}){1}$)) </td></tr>
   *     <tr><td>FIRSTNAME_FAILED</td><td>must be not blank</td></tr>
   *     <tr><td>LASTNAME_FAILED</td><td>must be not blank</td></tr>
   *     <tr><td>PHONE_FAILED</td><td>phone must be more than 4 and less than 13 chars</td></tr>
   *     <tr><td>[ATTRIBUTE CODE]:FAILED</td><td>
   *         E.g. CUSTOMERTYPE_FAILED denoting that mandatory value was missing (could also happen if regex fails but there is no
   *         validation message specified on the {@link org.yes.cart.domain.entity.Attribute#getValidationFailedMessage()})
   *     </td></tr>
   *     <tr><td>[ATTRIBUTE CODE]:FAILED:[Message]</td><td>
   *         E.g. "CUSTOMERTYPE:FAILED:Please choose either Buyer or Seller (UK)" denoting that regex test failed.
   *         RegEx and Message come from {@link org.yes.cart.domain.entity.Attribute#getRegexp()} and
   *         {@link org.yes.cart.domain.entity.Attribute#getValidationFailedMessage()} respectively
   *     </td></tr>
   *     <tr><td>USER_FAILED</td><td>email must not be already registered</td></tr>
   * </table>
   *
   * @param registerRO register parameters (see examples above)
   * @param request request
   * @param response response
   * @return authentication result
   */
  @RequestMapping(
      value = "/register",
      method = RequestMethod.PUT,
      produces = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE},
      consumes = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE})
  public @ResponseBody AuthenticationResultRO register(
      final @RequestBody RegisterRO registerRO,
      final HttpServletRequest request,
      final HttpServletResponse response) {

    if (StringUtils.isBlank(registerRO.getEmail())
        || registerRO.getEmail().length() < 6
        || registerRO.getEmail().length() > 256
        || !EMAIL.matcher(registerRO.getEmail()).matches()) {

      return new AuthenticationResultRO("EMAIL_FAILED");
    }

    if (StringUtils.isBlank(registerRO.getFirstname())) {

      return new AuthenticationResultRO("FIRSTNAME_FAILED");
    }

    if (StringUtils.isBlank(registerRO.getLastname())) {

      return new AuthenticationResultRO("LASTNAME_FAILED");
    }

    if (StringUtils.isBlank(registerRO.getPhone())
        || registerRO.getPhone().length() < 4
        || registerRO.getPhone().length() > 13) {

      return new AuthenticationResultRO("PHONE_FAILED");
    }

    if (customerServiceFacade.isCustomerRegistered(registerRO.getEmail())) {

      return new AuthenticationResultRO("USER_FAILED");
    }

    final ShoppingCart cart = cartMixin.getCurrentCart();
    final Shop shop = cartMixin.getCurrentShop();

    final Map<String, Object> data = new HashMap<String, Object>();
    if (registerRO.getCustom() != null) {

      for (final AttrValueCustomer av : customerServiceFacade.getShopRegistrationAttributes(shop)) {

        final Attribute attr = av.getAttribute();
        final String value = registerRO.getCustom().get(attr.getCode());

        if (attr.isMandatory() && StringUtils.isBlank(value)) {

          return new AuthenticationResultRO(attr.getCode() + ":FAILED");

        } else if (StringUtils.isNotBlank(attr.getRegexp())
            && !Pattern.compile(attr.getRegexp()).matcher(value).matches()) {

          final String regexError =
              new FailoverStringI18NModel(attr.getValidationFailedMessage(), null)
                  .getValue(cart.getCurrentLocale());

          if (StringUtils.isBlank(regexError)) {
            return new AuthenticationResultRO(attr.getCode() + ":FAILED");
          }
          return new AuthenticationResultRO(attr.getCode() + ":FAILED:" + regexError);

        } else {

          data.put(attr.getCode(), value);
        }
      }
    }
    data.put("firstname", registerRO.getFirstname());
    data.put("lastname", registerRO.getLastname());
    data.put("phone", registerRO.getPhone());

    final String password =
        customerServiceFacade.registerCustomer(shop, registerRO.getEmail(), data);

    final LoginRO loginRO = new LoginRO();
    loginRO.setUsername(registerRO.getEmail());
    loginRO.setPassword(password);

    return login(loginRO, request, response);
  }