@Override
 public double getBalance(String username) {
   try {
     return userService.getBalanceFor(username);
   } catch (UserNotFoundException e) {
     e.printStackTrace();
   }
   return 0;
 }
  @Override
  public List<SmsResponse> sendSms(String username, String groupname, Sms sms)
      throws InsufficientCreditException {

    sms.setSender_id(username);
    Group group = groupService.getGroup(groupname, username);
    if (group != null) {
      // Check if there is enough to send the sms
      try {
        double balance = userService.getBalanceFor(username);
        double smsValue = userService.getSmsValueFor(username);

        int smsesNeeded = 1;

        if (sms.getText().length() > 160 && sms.getText().length() <= 320) {
          smsesNeeded = 2;
        }

        if (sms.getText().length() > 320 && sms.getText().length() <= 480) {
          smsesNeeded = 3;
        }

        // Should I be setting a max limit on number of characters to send in a

        double amountRequired = group.getRecipients().size() * smsesNeeded * smsValue;
        System.out.println("Credits required: " + amountRequired);
        if (amountRequired > balance) {
          throw new InsufficientCreditException(
              "This operation cannot be successfully completed. You have insufficient credits.");
        }
      } catch (UserNotFoundException e) {
        e.printStackTrace();
      }

      sms.setRecipients(group.getRecipients());
      datastore.save(sms);
      sms.setMessageid(sms.getId().toString());

      SmsWrapper wrapper = new SmsWrapper();
      SenderAuthentication authentication = new SenderAuthentication();
      List<BaseSms> messages = new ArrayList<BaseSms>();
      List<BaseRecipient> baseRecipients = new ArrayList<>();

      BaseSms baseSms = new BaseSms();
      BeanUtils.copyProperties(sms, baseSms);

      for (Recipient recipient : sms.getRecipients()) {
        BaseRecipient baseRecipient = new BaseRecipient();
        BeanUtils.copyProperties(recipient, baseRecipient);
        baseRecipient.setMessageId(sms.getId().toString());
        baseRecipients.add(baseRecipient);
      }
      baseSms.setBaseRecipients(baseRecipients);
      messages.add(baseSms);

      authentication.setUsername("ImanAfrica");
      authentication.setPassword("Afri2013");

      wrapper.setAuthentication(authentication);
      wrapper.setMessages(messages);
      System.out.println(wrapper.getMessages());

      try {
        SmsResponseWrapper smsResponseWrapper = smsProvider.sendSms(wrapper);
        // How do I know if the smses were sent successfully so
        // we can deduct from the user balance.
        int successCount = 0;
        List<SmsResponse> responses = smsResponseWrapper.getResults();
        for (SmsResponse response : responses) {
          if (response.getStatus() == 0) {
            successCount++;
          }
        }

        System.out.println("Total smses sent: " + successCount);
        double smsValue = userService.getSmsValueFor(username);

        int smsesPerRecipient = 1;
        if (sms.getText().length() > 160) {
          smsesPerRecipient = Math.round(sms.getText().length() / 160);
          System.out.println("smsesPerRecipient: " + smsesPerRecipient);
        }

        userService.updateAccountBalanceForUser(
            username, -(smsValue * successCount * smsesPerRecipient));

        sms.setResponses(smsResponseWrapper.getResults());
        sms.setSent(true);
        sms.setDatesent(new Date());
        sms.setCreditsused(successCount * smsesPerRecipient * smsValue);
        datastore.save(sms);
        return smsResponseWrapper.getResults();
      } catch (ParseException e) {
        e.printStackTrace();
      } catch (UserNotFoundException e) {
        e.printStackTrace();
      }
    }

    return null;
  }