wrap payload for all processors

internal/processor/struct-field-get.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"reflect"
 
+	"github.com/jwetzell/showbridge-go/internal/common"
 	"github.com/jwetzell/showbridge-go/internal/config"
 )
 
@@ -14,23 +15,27 @@ type StructFieldGet struct {
 	Name   string
 }
 
-func (sf *StructFieldGet) Process(ctx context.Context, payload any) (any, error) {
+func (sf *StructFieldGet) Process(ctx context.Context, wrappedPayload common.WrappedPayload) (common.WrappedPayload, error) {
+	payload := wrappedPayload.Payload
 	s := reflect.ValueOf(payload)
 
 	if s.Kind() != reflect.Struct {
 		if s.Kind() == reflect.Pointer && s.Elem().Kind() == reflect.Struct {
 			s = s.Elem()
 		} else {
-			return nil, errors.New("struct.field.get processor only accepts a struct payload")
+			wrappedPayload.End = true
+			return wrappedPayload, errors.New("struct.field.get processor only accepts a struct payload")
 		}
 	}
 
 	field := s.FieldByName(sf.Name)
 	if !field.IsValid() {
-		return nil, fmt.Errorf("struct.field.get field '%s' does not exist", sf.Name)
+		wrappedPayload.End = true
+		return wrappedPayload, fmt.Errorf("struct.field.get field '%s' does not exist", sf.Name)
 	}
 
-	return field.Interface(), nil
+	wrappedPayload.Payload = field.Interface()
+	return wrappedPayload, nil
 }
 
 func (sf *StructFieldGet) Type() string {