Adding upstream version 0.8.9.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pkg/format/config_props.go

@@ -0,0 +1,49 @@
+package format
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+
+	"github.com/nicholas-fedor/shoutrrr/pkg/types"
+)
+
+var ErrNotConfigProp = errors.New("struct field cannot be used as a prop")
+
+// GetConfigPropFromString deserializes a config property from a string representation using the ConfigProp interface.
+func GetConfigPropFromString(structType reflect.Type, value string) (reflect.Value, error) {
+	valuePtr := reflect.New(structType)
+
+	configProp, ok := valuePtr.Interface().(types.ConfigProp)
+	if !ok {
+		return reflect.Value{}, ErrNotConfigProp
+	}
+
+	if err := configProp.SetFromProp(value); err != nil {
+		return reflect.Value{}, fmt.Errorf("failed to set config prop from string: %w", err)
+	}
+
+	return valuePtr, nil
+}
+
+// GetConfigPropString serializes a config property to a string representation using the ConfigProp interface.
+func GetConfigPropString(propPtr reflect.Value) (string, error) {
+	if propPtr.Kind() != reflect.Ptr {
+		propVal := propPtr
+		propPtr = reflect.New(propVal.Type())
+		propPtr.Elem().Set(propVal)
+	}
+
+	if propPtr.CanInterface() {
+		if configProp, ok := propPtr.Interface().(types.ConfigProp); ok {
+			s, err := configProp.GetPropValue()
+			if err != nil {
+				return "", fmt.Errorf("failed to get config prop string: %w", err)
+			}
+
+			return s, nil
+		}
+	}
+
+	return "", ErrNotConfigProp
+}