1 files changed, 61 insertions, 1 deletions

diff --git a/internal/admin/yaml_util.go b/internal/admin/yaml_util.go
index 519a04c..b869ffe 100644
--- a/internal/admin/yaml_util.go
+++ b/internal/admin/yaml_util.go
@@ -214,6 +214,52 @@ func createEntityDir(dataDir, subdir, name string) error {
 	return os.Mkdir(dirPath, 0755)
 }
 
+func renameEntityFile(dataDir, subdir, oldID, newID string) (string, string, []byte, error) {
+	oldPath, err := findEntityPath(dataDir, subdir, oldID)
+	if err != nil {
+		return "", "", nil, fmt.Errorf("entity not found: %s/%s", subdir, oldID)
+	}
+	dir := filepath.Dir(oldPath)
+	newPath := filepath.Join(dir, newID+".yaml")
+	if oldPath == newPath {
+		return "", "", nil, fmt.Errorf("new name is same as current")
+	}
+	if _, err := os.Stat(newPath); err == nil {
+		return "", "", nil, fmt.Errorf("entity %s already exists", newID)
+	}
+	data, err := os.ReadFile(oldPath)
+	if err != nil {
+		return "", "", nil, fmt.Errorf("read: %w", err)
+	}
+	if err := os.WriteFile(newPath, data, 0644); err != nil {
+		return "", "", nil, fmt.Errorf("write: %w", err)
+	}
+	if err := os.Remove(oldPath); err != nil {
+		return "", "", nil, fmt.Errorf("remove old: %w", err)
+	}
+	return oldPath, newPath, data, nil
+}
+
+func renameEntityDir(dataDir, subdir, oldName, newName string) error {
+	oldName = strings.TrimSpace(oldName)
+	newName = strings.TrimSpace(newName)
+	if oldName == "" || newName == "" || strings.ContainsAny(oldName, "/\\") || oldName == "." || oldName == ".." {
+		return fmt.Errorf("invalid old directory name")
+	}
+	if strings.ContainsAny(newName, "/\\") || newName == "." || newName == ".." {
+		return fmt.Errorf("invalid new directory name")
+	}
+	oldPath := filepath.Join(dataDir, subdir, oldName)
+	if _, err := os.Stat(oldPath); os.IsNotExist(err) {
+		return fmt.Errorf("directory %s does not exist", oldName)
+	}
+	newPath := filepath.Join(dataDir, subdir, newName)
+	if _, err := os.Stat(newPath); err == nil {
+		return fmt.Errorf("directory %s already exists", newName)
+	}
+	return os.Rename(oldPath, newPath)
+}
+
 func deleteEntityDir(dataDir, subdir, dir string) ([]ChangeDesc, error) {
 	dir = strings.TrimSpace(dir)
 	if dir == "" || strings.ContainsAny(dir, "/\\") || dir == "." || dir == ".." {
@@ -225,13 +271,27 @@ func deleteEntityDir(dataDir, subdir, dir string) ([]ChangeDesc, error) {
 		return nil, fmt.Errorf("directory not found: %s", dir)
 	}
 
+	rootDir := filepath.Join(dataDir, subdir)
+	var clashes []string
+	for _, e := range entries {
+		if e.IsDir() || filepath.Ext(e.Name()) != ".yaml" {
+			continue
+		}
+		if _, err := os.Stat(filepath.Join(rootDir, e.Name())); err == nil {
+			clashes = append(clashes, e.Name())
+		}
+	}
+	if len(clashes) > 0 {
+		return nil, fmt.Errorf("files already exist in root: %s", strings.Join(clashes, ", "))
+	}
+
 	var changes []ChangeDesc
 	for _, e := range entries {
 		if e.IsDir() || filepath.Ext(e.Name()) != ".yaml" {
 			continue
 		}
 		oldPath := filepath.Join(srcDir, e.Name())
-		newPath := filepath.Join(dataDir, subdir, e.Name())
+		newPath := filepath.Join(rootDir, e.Name())
 		data, err := os.ReadFile(oldPath)
 		if err != nil {
 			return nil, fmt.Errorf("read %s: %w", e.Name(), err)