notification

internal/validator/notification_validator.go

@@ -0,0 +1,53 @@
+package validator
+
+import (
+	"fmt"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/contract"
+)
+
+type NotificationValidator interface {
+	ValidateSendRequest(req *contract.SendNotificationRequest) (error, string)
+	ValidateBroadcastRequest(req *contract.BroadcastNotificationRequest) (error, string)
+	ValidateListRequest(req *contract.ListNotificationsRequest) (error, string)
+}
+
+type NotificationValidatorImpl struct{}
+
+func NewNotificationValidator() *NotificationValidatorImpl {
+	return &NotificationValidatorImpl{}
+}
+
+func (v *NotificationValidatorImpl) ValidateSendRequest(req *contract.SendNotificationRequest) (error, string) {
+	if req.Title == "" {
+		return fmt.Errorf("title is required"), constants.MissingFieldErrorCode
+	}
+	if req.Body == "" {
+		return fmt.Errorf("body is required"), constants.MissingFieldErrorCode
+	}
+	if len(req.ReceiverIDs) == 0 {
+		return fmt.Errorf("at least one receiver_id is required"), constants.MissingFieldErrorCode
+	}
+	return nil, ""
+}
+
+func (v *NotificationValidatorImpl) ValidateBroadcastRequest(req *contract.BroadcastNotificationRequest) (error, string) {
+	if req.Title == "" {
+		return fmt.Errorf("title is required"), constants.MissingFieldErrorCode
+	}
+	if req.Body == "" {
+		return fmt.Errorf("body is required"), constants.MissingFieldErrorCode
+	}
+	return nil, ""
+}
+
+func (v *NotificationValidatorImpl) ValidateListRequest(req *contract.ListNotificationsRequest) (error, string) {
+	if req.Page < 1 {
+		return fmt.Errorf("page must be greater than 0"), constants.ValidationErrorCode
+	}
+	if req.Limit < 1 || req.Limit > 100 {
+		return fmt.Errorf("limit must be between 1 and 100"), constants.ValidationErrorCode
+	}
+	return nil, ""
+}