From 30c56e09267a956a32fa60ecf05c3b69e0585484 Mon Sep 17 00:00:00 2001
From: static <kmc7468@naver.com>
Date: Sat, 3 Jan 2026 00:54:32 +0900
Subject: [PATCH] =?UTF-8?q?=EC=82=AD=EC=A0=9C=EB=90=9C=20=ED=8C=8C?=
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---
 src/lib/indexedDB/filesystem.ts         | 24 ++++++++++++++++++++++++
 src/lib/modules/filesystem/category.ts  |  3 +++
 src/lib/modules/filesystem/directory.ts |  4 ++++
 3 files changed, 31 insertions(+)

diff --git a/src/lib/indexedDB/filesystem.ts b/src/lib/indexedDB/filesystem.ts
index 7be44c7..c78ce4d 100644
--- a/src/lib/indexedDB/filesystem.ts
+++ b/src/lib/indexedDB/filesystem.ts
@@ -62,6 +62,16 @@ export const deleteDirectoryInfo = async (id: number) => {
   await filesystem.directory.delete(id);
 };
 
+export const deleteDanglingDirectoryInfos = async (
+  parentId: DirectoryId,
+  validIds: Set<number>,
+) => {
+  await filesystem.directory
+    .where({ parentId })
+    .and((directory) => !validIds.has(directory.id))
+    .delete();
+};
+
 export const getAllFileInfos = async () => {
   return await filesystem.file.toArray();
 };
@@ -86,6 +96,13 @@ export const deleteFileInfo = async (id: number) => {
   await filesystem.file.delete(id);
 };
 
+export const deleteDanglingFileInfos = async (parentId: DirectoryId, validIds: Set<number>) => {
+  await filesystem.file
+    .where({ parentId })
+    .and((file) => !validIds.has(file.id))
+    .delete();
+};
+
 export const getCategoryInfos = async (parentId: CategoryId) => {
   return await filesystem.category.where({ parentId }).toArray();
 };
@@ -106,6 +123,13 @@ export const deleteCategoryInfo = async (id: number) => {
   await filesystem.category.delete(id);
 };
 
+export const deleteDanglingCategoryInfos = async (parentId: CategoryId, validIds: Set<number>) => {
+  await filesystem.category
+    .where({ parentId })
+    .and((category) => !validIds.has(category.id))
+    .delete();
+};
+
 export const cleanupDanglingInfos = async () => {
   const validDirectoryIds: number[] = [];
   const validFileIds: number[] = [];
diff --git a/src/lib/modules/filesystem/category.ts b/src/lib/modules/filesystem/category.ts
index dc25506..2ca3472 100644
--- a/src/lib/modules/filesystem/category.ts
+++ b/src/lib/modules/filesystem/category.ts
@@ -53,6 +53,9 @@ const fetchFromServer = async (id: CategoryId, masterKey: CryptoKey) => {
       subCategories: subCategoriesRaw,
       files: filesRaw,
     } = await trpc().category.get.query({ id, recurse: true });
+
+    void IndexedDB.deleteDanglingCategoryInfos(id, new Set(subCategoriesRaw.map(({ id }) => id)));
+
     const subCategories = await Promise.all(
       subCategoriesRaw.map(async (category) => {
         const decrypted = await decryptCategoryMetadata(category, masterKey);
diff --git a/src/lib/modules/filesystem/directory.ts b/src/lib/modules/filesystem/directory.ts
index 6449480..8932698 100644
--- a/src/lib/modules/filesystem/directory.ts
+++ b/src/lib/modules/filesystem/directory.ts
@@ -39,6 +39,10 @@ const fetchFromServer = async (id: DirectoryId, masterKey: CryptoKey) => {
       subDirectories: subDirectoriesRaw,
       files: filesRaw,
     } = await trpc().directory.get.query({ id });
+
+    void IndexedDB.deleteDanglingDirectoryInfos(id, new Set(subDirectoriesRaw.map(({ id }) => id)));
+    void IndexedDB.deleteDanglingFileInfos(id, new Set(filesRaw.map(({ id }) => id)));
+
     const existingFiles = await IndexedDB.bulkGetFileInfos(filesRaw.map((file) => file.id));
     const [subDirectories, files, decryptedMetadata] = await Promise.all([
       Promise.all(