- (IBAction)saveCustomer:(id)sender {
    @try {
        [self.view endEditing:YES];

        // Cannot save if customer is pending
        if ([self.service isWaitingForApproval]) {
            APAlert(WARNING_TITLE, NSLocalizedString(@"message.waiting-approval", nil));
            return;
        }

        // Check required field
        NSString *incompleteRequiredField = [self.service checkRequiredFields];
        if (incompleteRequiredField) {
            NSString *message = [NSString localizedStringWithFormat:NSLocalizedString(@"message.required field %@", nil), NSLocalizedString(incompleteRequiredField, nil)];
            APAlert(WARNING_TITLE, message);
            return;
        }

        if(![self.service isDistributorOrWholesalerInTW]) {
            incompleteRequiredField = [self checkRequireCellOTM];
            if(incompleteRequiredField) {
                NSString *message = [NSString localizedStringWithFormat:NSLocalizedString(@"message.required otm %@", nil), NSLocalizedString(incompleteRequiredField, nil)];
                APAlert(WARNING_TITLE, message);
                return;
            }
        }

        Country_Identifier countryID = (Country_Identifier)[self.service.customer.country_id integerValue];
        if (countryID == Country_Taiwan || countryID == Country_Thailand) {
            if (![self.service isHasContact]) {
                APAlert(WARNING_TITLE, ALERT_CONFRIM_HAVE_CONTACT);
                return;
            }
        }
        [[SomeManager alertViewManager] showAlertWithTitle:SAVING_TITLE
                                                                  message:SAVE_CUSTOMER_CONFIRM
                                                                   target:self
                                                               actionView:nil
                                                        cancelButtonTitle:YES_BUTTON_TITLE
                                                        otherButtonTitles:NO_BUTTON_TITLE
                                                                   andTag:AlertViewTag_Save];
    }
    @catch(NSException *exception) {
        [self sendException:exception];
    }
}

- (NSString*)validateServiceReadiness:(NSString*)requiredCellOTM {
  // Cannot save if customer is pending
  if ([self isWaitingForApproval]) {
    return NSLocalizedString(@"message.waiting-approval", nil);
  }

  // Check required field
  NSString *incompleteRequiredField = [self checkRequiredFields];
  if (incompleteRequiredField) {
    NSString *message = [NSString localizedStringWithFormat:NSLocalizedString(@"message.required field %@", nil), NSLocalizedString(incompleteRequiredField, nil)];
    return message;
  }

  if(![self isDistributorOrWholesalerInTW]) {
    incompleteRequiredField = requiredCellOTM;
    if(incompleteRequiredField) {
        NSString *message = [NSString localizedStringWithFormat:NSLocalizedString(@"message.required otm %@", nil), NSLocalizedString(incompleteRequiredField, nil)];
        return message;
    }
  }

  Country_Identifier countryID = (Country_Identifier)[self.customer.country_id integerValue];
  if (countryID == Country_Taiwan || countryID == Country_Thailand) {
    if (![self isHasContact]) {
        return ALERT_CONFRIM_HAVE_CONTACT;
    }
  }
}

- (IBAction)saveCustomer:(id)sender {
  @try {
    [self.view endEditing:YES];

    NSString *serviceReadinessMessage = [self.service validateServiceReadiness:[self checkRequireCellOTM]];
    if (serviceReadynessMessage != nil) {
        APAlert(WARNING_TITLE, serviceReadinessMessage);
        return;
    }
    [[SomeManager alertViewManager] showAlertWithTitle:SAVING_TITLE
                                               message:SAVE_CUSTOMER_CONFIRM
                                                target:self
                                            actionView:nil
                                     cancelButtonTitle:YES_BUTTON_TITLE
                                     otherButtonTitles:NO_BUTTON_TITLE
                                                andTag:AlertViewTag_Save];
  }
  @catch(NSException *exception) {
    [self sendException:exception];
  }
}