feat: single-owner game state, transactional lifecycle, durable money on server stop

1 files changed, 12 insertions, 3 deletions

diff --git a/internal/admin/yaml_util.go b/internal/admin/yaml_util.go
index 2d838ad..7157f15 100644
--- a/internal/admin/yaml_util.go
+++ b/internal/admin/yaml_util.go
@@ -17,15 +17,24 @@ func readYAMLFile(dataDir, subdir, id string) ([]byte, string, error) {
 	return data, path, err
 }
 
-func writeYAMLFile(path string, data any) ([]byte, error) {
+func marshalYAML(data any) ([]byte, error) {
 	var buf bytes.Buffer
 	enc := yaml.NewEncoder(&buf)
 	enc.SetIndent(2)
 	if err := enc.Encode(data); err != nil {
 		return nil, err
 	}
-	enc.Close()
-	content := buf.Bytes()
+	if err := enc.Close(); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func writeYAMLFile(path string, data any) ([]byte, error) {
+	content, err := marshalYAML(data)
+	if err != nil {
+		return nil, err
+	}
 	if err := os.WriteFile(path, content, 0644); err != nil {
 		return nil, err
 	}