From 79764732406d6484f67d3dec045483dcb5d08c28 Mon Sep 17 00:00:00 2001
From: historia <[not public]>
Date: Fri, 18 Sep 2026 20:03:13 -0400
Subject: feat: better card ascii art

---
 internal/admin/api_techs.go | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

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

diff --git a/internal/admin/api_techs.go b/internal/admin/api_techs.go
index 9e742e1..d2c5f65 100644
--- a/internal/admin/api_techs.go
+++ b/internal/admin/api_techs.go
@@ -111,9 +111,16 @@ func (s *AdminServer) handleTechByID(w http.ResponseWriter, r *http.Request) {
 
 		var oldContent []byte
 		if !isCreate {
-			if existing, err := snapshotFile(path); err == nil {
-				oldContent = existing
+			existing, existed, err := snapshotBefore(path)
+			if err != nil {
+				failJSON(w, "read existing file: "+err.Error())
+				return
 			}
+			if !existed {
+				failJSON(w, "not found: "+id)
+				return
+			}
+			oldContent = existing
 		}
 
 		newContent, err := writeMapAsYAML(path, body)
-- 
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