/** POST /account -> update the current user information. */
 @RequestMapping(
     value = "/account",
     method = RequestMethod.POST,
     produces = MediaType.APPLICATION_JSON_VALUE)
 @Timed
 public ResponseEntity<String> saveAccount(@RequestBody UserDTO userDTO) {
   return userRepository
       .findOneByLogin(userDTO.getLogin())
       .filter(u -> u.getLogin().equals(SecurityUtils.getCurrentLogin()))
       .map(
           u -> {
             userService.updateUserInformation(
                 userDTO.getFirstName(),
                 userDTO.getLastName(),
                 userDTO.getEmail(),
                 userDTO.getLangKey());
             return new ResponseEntity<String>(HttpStatus.OK);
           })
       .orElseGet(() -> new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR));
 }
  /** POST /register -> register the user. */
  @RequestMapping(
      value = "/register",
      method = RequestMethod.POST,
      produces = MediaType.TEXT_PLAIN_VALUE)
  @Timed
  public ResponseEntity<?> registerAccount(
      @Valid @RequestBody UserDTO userDTO, HttpServletRequest request) {
    return userRepository
        .findOneByLogin(userDTO.getLogin())
        .map(user -> new ResponseEntity<>("login already in use", HttpStatus.BAD_REQUEST))
        .orElseGet(
            () ->
                userRepository
                    .findOneByEmail(userDTO.getEmail())
                    .map(
                        user ->
                            new ResponseEntity<>(
                                "e-mail address already in use", HttpStatus.BAD_REQUEST))
                    .orElseGet(
                        () -> {
                          User user =
                              userService.createUserInformation(
                                  userDTO.getLogin(),
                                  userDTO.getPassword(),
                                  userDTO.getFirstName(),
                                  userDTO.getLastName(),
                                  userDTO.getEmail().toLowerCase(),
                                  userDTO.getLangKey());
                          String baseUrl =
                              request.getScheme()
                                  + // "http"
                                  "://"
                                  + // "://"
                                  request.getServerName()
                                  + // "myhost"
                                  ":"
                                  + // ":"
                                  request.getServerPort(); // "80"

                          mailService.sendActivationEmail(user, baseUrl);
                          return new ResponseEntity<>(HttpStatus.CREATED);
                        }));
  }