From 0b0b25222b3131ada79ff78c28eb8bf07d977deb Mon Sep 17 00:00:00 2001
From: historia <[not public]>
Date: Tue, 15 Sep 2026 15:35:52 -0400
Subject: feat: single-owner game state, transactional lifecycle, durable money
 on server stop

---
 internal/admin/api_helpers.go | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

(limited to 'internal/admin/api_helpers.go')

diff --git a/internal/admin/api_helpers.go b/internal/admin/api_helpers.go
index 109bca6..3224598 100644
--- a/internal/admin/api_helpers.go
+++ b/internal/admin/api_helpers.go
@@ -46,16 +46,27 @@ func stringifyMap(v any) any {
 }
 
 func writeMapAsYAML(path string, m map[string]any) ([]byte, error) {
+	content, err := marshalMapYAML(m)
+	if err != nil {
+		return nil, err
+	}
+	if err := os.WriteFile(path, content, 0644); err != nil {
+		return nil, err
+	}
+	return content, nil
+}
+
+// marshalMapYAML serializes a generic map without writing: callers that
+// only need the after-image (mutation-plan preflight) use this.
+func marshalMapYAML(m map[string]any) ([]byte, error) {
 	var buf bytes.Buffer
 	enc := yaml.NewEncoder(&buf)
 	enc.SetIndent(2)
 	if err := enc.Encode(m); err != nil {
 		return nil, err
 	}
-	enc.Close()
-	content := buf.Bytes()
-	if err := os.WriteFile(path, content, 0644); err != nil {
+	if err := enc.Close(); err != nil {
 		return nil, err
 	}
-	return content, nil
+	return buf.Bytes(), nil
 }
-- 
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