fix: allow design variable empty value for email templates

server/graph/generated/generated.go

@@ -2395,7 +2395,7 @@ input AddEmailTemplateRequest {
 	event_name: String!
 	subject: String!
 	template: String!
-  design: String!
+	design: String
 }
 
 input UpdateEmailTemplateRequest {
@@ -14130,7 +14130,7 @@ func (ec *executionContext) unmarshalInputAddEmailTemplateRequest(ctx context.Co
 			var err error
 
 			ctx := graphql.WithPathContext(ctx, graphql.NewPathWithField("design"))
-			it.Design, err = ec.unmarshalNString2string(ctx, v)
+			it.Design, err = ec.unmarshalOString2ᚖstring(ctx, v)
 			if err != nil {
 				return it, err
 			}

server/graph/model/models_gen.go

@@ -6,7 +6,7 @@ type AddEmailTemplateRequest struct {
 	EventName string  `json:"event_name"`
 	Subject   string  `json:"subject"`
 	Template  string  `json:"template"`
-	Design    string `json:"design"`
+	Design    *string `json:"design"`
 }
 
 type AddWebhookRequest struct {

server/graph/schema.graphqls

@@ -430,7 +430,7 @@ input AddEmailTemplateRequest {
 	event_name: String!
 	subject: String!
 	template: String!
-  design: String!
+	design: String
 }
 
 input UpdateEmailTemplateRequest {

server/resolvers/add_email_template.go

@@ -40,15 +40,17 @@ func AddEmailTemplateResolver(ctx context.Context, params model.AddEmailTemplate
 		return nil, fmt.Errorf("empty template not allowed")
 	}
 
-	if strings.TrimSpace(params.Design) == "" {
-		return nil, fmt.Errorf("empty design not allowed")
+	var design string
+
+	if params.Design == nil {
+		design = ""
 	}
 
 	_, err = db.Provider.AddEmailTemplate(ctx, models.EmailTemplate{
 		EventName: params.EventName,
 		Template:  params.Template,
 		Subject:   params.Subject,
-		Design:    params.Design,
+		Design:    design,
 	})
 	if err != nil {
 		log.Debug("Failed to add email template: ", err)

server/test/add_email_template_test.go

@@ -51,16 +51,30 @@ func addEmailTemplateTest(t *testing.T, s TestSetup) {
 			assert.Nil(t, emailTemplate)
 		})
 
-		t.Run("should not add email template with empty design", func(t *testing.T) {
+		var design string
+		design = ""
+
+		for _, eventType := range s.TestInfo.TestEmailTemplateEventTypes {
+			t.Run("should add email template with empty design for "+eventType, func(t *testing.T) {
 				emailTemplate, err := resolvers.AddEmailTemplateResolver(ctx, model.AddEmailTemplateRequest{
-				EventName: s.TestInfo.TestEmailTemplateEventTypes[0],
-				Template:  "test",
-				Subject:   "test",
-				Design:    "   ",
+					EventName: eventType,
+					Template:  "Test email",
+					Subject:   "Test email",
+					Design:    &design,
 				})
-			assert.Error(t, err)
-			assert.Nil(t, emailTemplate)
+				assert.NoError(t, err)
+				assert.NotNil(t, emailTemplate)
+				assert.NotEmpty(t, emailTemplate.Message)
+
+				et, err := db.Provider.GetEmailTemplateByEventName(ctx, eventType)
+				assert.NoError(t, err)
+				assert.Equal(t, et.EventName, eventType)
+				assert.Equal(t, "Test email", et.Subject)
+				assert.Equal(t, "Test design", et.Design)
 			})
+		}
+
+		design = "Test design"
 
 		for _, eventType := range s.TestInfo.TestEmailTemplateEventTypes {
 			t.Run("should add email template for "+eventType, func(t *testing.T) {
@@ -68,7 +82,7 @@ func addEmailTemplateTest(t *testing.T, s TestSetup) {
 					EventName: eventType,
 					Template:  "Test email",
 					Subject:   "Test email",
-					Design:    "Test design",
+					Design:    &design,
 				})
 				assert.NoError(t, err)
 				assert.NotNil(t, emailTemplate)