fix campaign template cant be both SMTP and API Sender set

Signed-off-by: Ronni Skansing <rskansing@gmail.com>

backend/model/campaignTemplate.go

@@ -125,6 +125,15 @@ func (c *CampaignTemplate) Validate() error {
 		)
 	}
 
+	// validate that smtp configuration and api sender are mutually exclusive
+	_, errSMTP := c.SMTPConfigurationID.Get()
+	_, errAPISender := c.APISenderID.Get()
+	if errSMTP == nil && errAPISender == nil {
+		return errs.NewValidationError(
+			errors.New("smtp configuration and api sender cannot both be set"),
+		)
+	}
+
 	return nil
 }
 

frontend/src/routes/campaign-template/+page.svelte

@@ -101,6 +101,13 @@
 		modalText = getModalText('template', modalMode);
 	}
 
+	// clear smtp or api sender when switching template type
+	$: if (formValues.templateType === 'Email') {
+		formValues.apiSender = null;
+	} else if (formValues.templateType === 'External API') {
+		formValues.smtpConfiguration = null;
+	}
+
 	// hooks
 	onMount(() => {
 		const context = appStateService.getContext();