add intro

internal/app/story_mapper.go

@@ -47,7 +47,18 @@ func mapStory(o *storytelling.Story) *proto.Story {
 		return nil
 	}
 	return &proto.Story{
-		Places: mapPlaces(o.Places),
+		Introduction: mapIntroduction(o.Introduction),
+		Places:       mapPlaces(o.Places),
+	}
+}
+
+func mapIntroduction(o *storytelling.Introduction) *proto.Introduction {
+	if o == nil {
+		return nil
+	}
+	return &proto.Introduction{
+		Text:  o.Text,
+		Audio: o.Audio,
 	}
 }
 
@@ -174,3 +185,13 @@ func convertKey(o *proto.Key) *storytelling.Key {
 		Name: textFormatter.FormatString(o.Name),
 	}
 }
+
+func convertIntroduction(o *proto.Introduction) *storytelling.Introduction {
+	if o == nil || (o.Text == "" && o.Audio == "") {
+		return nil
+	}
+	return &storytelling.Introduction{
+		Text:  textFormatter.FormatText(o.Text),
+		Audio: o.Audio,
+	}
+}