split organizer reclassify helpers

internal/service/organizer_reclassify_files.go

@@ -0,0 +1,69 @@
+package service
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func safeToRemoveReclassifiedDuplicate(path, target string) bool {
+	info, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+	targetInfo, err := os.Stat(target)
+	if err != nil {
+		return false
+	}
+	if os.SameFile(info, targetInfo) {
+		return true
+	}
+	return info.Size() > 0 && info.Size() == targetInfo.Size()
+}
+
+func organizeFileExists(path string) bool {
+	_, err := os.Stat(path)
+	return err == nil
+}
+
+func moveSidecarNFO(oldMedia, newMedia string) error {
+	oldNFO := nfoPath(oldMedia)
+	newNFO := nfoPath(newMedia)
+	if oldNFO == newNFO || !organizeFileExists(oldNFO) || organizeFileExists(newNFO) {
+		return nil
+	}
+	if err := os.MkdirAll(filepath.Dir(newNFO), 0o755); err != nil { // #nosec G301 -- sidecar media directories must remain readable by NAS/player users.
+		return err
+	}
+	return moveFile(oldNFO, newNFO)
+}
+
+func removeMediaAndNFO(path string) error {
+	if err := os.Remove(path); err != nil && !os.IsNotExist(err) {
+		return err
+	}
+	if nfo := nfoPath(path); nfo != "" {
+		if err := os.Remove(nfo); err != nil && !os.IsNotExist(err) {
+			return err
+		}
+	}
+	return nil
+}
+
+func cleanupEmptyMediaDirs(startDir, stopRoot string) {
+	dir := filepath.Clean(strings.TrimSpace(startDir))
+	stopRoot = filepath.Clean(strings.TrimSpace(stopRoot))
+	for dir != "" && dir != "." {
+		if stopRoot != "" && stopRoot != "." && (!pathWithin(dir, stopRoot) || strings.EqualFold(dir, stopRoot)) {
+			return
+		}
+		if err := os.Remove(dir); err != nil {
+			return
+		}
+		parent := filepath.Dir(dir)
+		if parent == dir {
+			return
+		}
+		dir = parent
+	}
+}