카테고리 페이지에서의 네트워크 호출 최적화

tRPC 도입

Dockerfile

@@ -2,11 +2,7 @@
 FROM node:22-alpine AS base
 WORKDIR /app
 
-RUN apk add --no-cache bash curl && \
-    curl -o /usr/local/bin/wait-for-it https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh && \
-    chmod +x /usr/local/bin/wait-for-it
-
-RUN npm install -g pnpm@9
+RUN npm install -g pnpm@10
 COPY pnpm-lock.yaml .
 
 # Build Stage
@@ -29,4 +25,4 @@ COPY --from=build /app/build ./build
 
 EXPOSE 3000
 ENV BODY_SIZE_LIMIT=Infinity
-CMD ["bash", "-c", "wait-for-it ${DATABASE_HOST:-localhost}:${DATABASE_PORT:-5432} -- node ./build/index.js"]
+CMD ["node", "./build/index.js"]

docker-compose.yaml

@@ -3,7 +3,8 @@ services:
     build: .
     restart: unless-stopped
     depends_on:
-      - database
+      database:
+        condition: service_healthy
     user: ${CONTAINER_UID:-0}:${CONTAINER_GID:-0}
     volumes:
       - ./data/library:/app/data/library
@@ -35,3 +36,8 @@ services:
     environment:
       - POSTGRES_USER=arkvault
       - POSTGRES_PASSWORD=${DATABASE_PASSWORD:?}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER}"]
+      interval: 5s
+      timeout: 5s
+      retries: 5

eslint.config.js

@@ -1,21 +1,24 @@
-import prettier from "eslint-config-prettier";
-import js from "@eslint/js";
 import { includeIgnoreFile } from "@eslint/compat";
+import js from "@eslint/js";
+import { defineConfig } from "eslint/config";
+import prettier from "eslint-config-prettier";
 import svelte from "eslint-plugin-svelte";
 import tailwind from "eslint-plugin-tailwindcss";
 import globals from "globals";
-import { fileURLToPath } from "node:url";
 import ts from "typescript-eslint";
+import { fileURLToPath } from "url";
+import svelteConfig from "./svelte.config.js";
+
 const gitignorePath = fileURLToPath(new URL("./.gitignore", import.meta.url));
 
-export default ts.config(
+export default defineConfig(
   includeIgnoreFile(gitignorePath),
   js.configs.recommended,
   ...ts.configs.recommended,
-  ...svelte.configs["flat/recommended"],
+  ...svelte.configs.recommended,
   ...tailwind.configs["flat/recommended"],
   prettier,
-  ...svelte.configs["flat/prettier"],
+  ...svelte.configs.prettier,
   {
     languageOptions: {
       globals: {
@@ -23,13 +26,18 @@ export default ts.config(
         ...globals.node,
       },
     },
+    rules: {
+      "no-undef": "off",
+    },
   },
   {
-    files: ["**/*.svelte"],
-
+    files: ["**/*.svelte", "**/*.svelte.ts", "**/*.svelte.js"],
     languageOptions: {
       parserOptions: {
+        projectService: true,
+        extraFileExtensions: [".svelte"],
         parser: ts.parser,
+        svelteConfig,
       },
     },
   },

package.json

@@ -1,7 +1,7 @@
 {
   "name": "arkvault",
   "private": true,
-  "version": "0.5.1",
+  "version": "0.6.0",
   "type": "module",
   "scripts": {
     "dev": "vite dev",
@@ -16,53 +16,57 @@
     "db:migrate": "kysely migrate"
   },
   "devDependencies": {
-    "@eslint/compat": "^1.3.1",
-    "@iconify-json/material-symbols": "^1.2.29",
-    "@sveltejs/adapter-node": "^5.2.13",
-    "@sveltejs/kit": "^2.22.5",
-    "@sveltejs/vite-plugin-svelte": "^4.0.4",
+    "@eslint/compat": "^2.0.0",
+    "@iconify-json/material-symbols": "^1.2.50",
+    "@sveltejs/adapter-node": "^5.4.0",
+    "@sveltejs/kit": "^2.49.2",
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
+    "@tanstack/svelte-virtual": "^3.13.13",
+    "@trpc/client": "^11.8.1",
     "@types/file-saver": "^2.0.7",
     "@types/ms": "^0.7.34",
     "@types/node-schedule": "^2.1.8",
-    "@types/pg": "^8.15.4",
-    "autoprefixer": "^10.4.21",
-    "axios": "^1.10.0",
-    "dexie": "^4.0.11",
-    "eslint": "^9.30.1",
-    "eslint-config-prettier": "^10.1.5",
-    "eslint-plugin-svelte": "^3.10.1",
-    "eslint-plugin-tailwindcss": "^3.18.0",
-    "exifreader": "^4.31.1",
+    "@types/pg": "^8.16.0",
+    "autoprefixer": "^10.4.23",
+    "axios": "^1.13.2",
+    "dexie": "^4.2.1",
+    "eslint": "^9.39.2",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-svelte": "^3.13.1",
+    "eslint-plugin-tailwindcss": "^3.18.2",
+    "exifreader": "^4.33.1",
     "file-saver": "^2.0.5",
-    "globals": "^16.3.0",
+    "globals": "^16.5.0",
     "heic2any": "^0.0.4",
-    "kysely-ctl": "^0.13.1",
-    "lru-cache": "^11.1.0",
-    "mime": "^4.0.7",
-    "p-limit": "^6.2.0",
-    "prettier": "^3.6.2",
-    "prettier-plugin-svelte": "^3.4.0",
-    "prettier-plugin-tailwindcss": "^0.6.14",
-    "svelte": "^5.35.6",
-    "svelte-check": "^4.2.2",
-    "tailwindcss": "^3.4.17",
-    "typescript": "^5.8.3",
-    "typescript-eslint": "^8.36.0",
-    "unplugin-icons": "^22.1.0",
-    "vite": "^5.4.19"
+    "kysely-ctl": "^0.19.0",
+    "lru-cache": "^11.2.4",
+    "mime": "^4.1.0",
+    "p-limit": "^7.2.0",
+    "prettier": "^3.7.4",
+    "prettier-plugin-svelte": "^3.4.1",
+    "prettier-plugin-tailwindcss": "^0.7.2",
+    "svelte": "^5.46.1",
+    "svelte-check": "^4.3.5",
+    "tailwindcss": "^3.4.19",
+    "typescript": "^5.9.3",
+    "typescript-eslint": "^8.50.1",
+    "unplugin-icons": "^22.5.0",
+    "vite": "^7.3.0"
   },
   "dependencies": {
-    "@fastify/busboy": "^3.1.1",
-    "argon2": "^0.43.0",
-    "kysely": "^0.28.2",
+    "@fastify/busboy": "^3.2.0",
+    "@trpc/server": "^11.8.1",
+    "argon2": "^0.44.0",
+    "kysely": "^0.28.9",
     "ms": "^2.1.3",
     "node-schedule": "^2.1.1",
     "pg": "^8.16.3",
-    "uuid": "^11.1.0",
-    "zod": "^3.25.76"
+    "superjson": "^2.2.6",
+    "uuid": "^13.0.0",
+    "zod": "^4.2.1"
   },
   "engines": {
     "node": "^22.0.0",
-    "pnpm": "^9.0.0"
+    "pnpm": "^10.0.0"
   }
 }

src/lib/components/atoms/RowVirtualizer.svelte

@@ -0,0 +1,58 @@
+<script lang="ts">
+  import { createWindowVirtualizer } from "@tanstack/svelte-virtual";
+  import type { Snippet } from "svelte";
+  import type { ClassValue } from "svelte/elements";
+
+  interface Props {
+    class?: ClassValue;
+    count: number;
+    item: Snippet<[index: number]>;
+    itemHeight: (index: number) => number;
+    placeholder?: Snippet;
+  }
+
+  let { class: className, count, item, itemHeight, placeholder }: Props = $props();
+
+  let element: HTMLElement | undefined = $state();
+  let scrollMargin = $state(0);
+
+  let virtualizer = $derived(
+    createWindowVirtualizer({
+      count,
+      estimateSize: itemHeight,
+      scrollMargin,
+    }),
+  );
+
+  const measureItem = (node: HTMLElement) => {
+    $effect(() => $virtualizer.measureElement(node));
+  };
+
+  $effect(() => {
+    if (!element) return;
+
+    const observer = new ResizeObserver(() => {
+      scrollMargin = element!.getBoundingClientRect().top + window.scrollY;
+    });
+    observer.observe(element.parentElement!);
+    return () => observer.disconnect();
+  });
+</script>
+
+<div bind:this={element} class={["relative", className]}>
+  <div style:height="{$virtualizer.getTotalSize()}px">
+    {#each $virtualizer.getVirtualItems() as virtualItem (virtualItem.key)}
+      <div
+        class="absolute left-0 top-0 w-full"
+        style:transform="translateY({virtualItem.start - scrollMargin}px)"
+        data-index={virtualItem.index}
+        use:measureItem
+      >
+        {@render item(virtualItem.index)}
+      </div>
+    {/each}
+  </div>
+  {#if placeholder && $virtualizer.getVirtualItems().length === 0}
+    {@render placeholder()}
+  {/if}
+</div>

src/lib/components/atoms/buttons/FileThumbnailButton.svelte

@@ -0,0 +1,42 @@
+<script lang="ts">
+  import type { Writable } from "svelte/store";
+  import type { FileInfo } from "$lib/modules/filesystem";
+  import { requestFileThumbnailDownload } from "$lib/services/file";
+
+  interface Props {
+    info: Writable<FileInfo | null>;
+    onclick?: (file: FileInfo) => void;
+  }
+
+  let { info, onclick }: Props = $props();
+
+  let thumbnail: string | undefined = $state();
+
+  $effect(() => {
+    if ($info) {
+      requestFileThumbnailDownload($info.id, $info.dataKey)
+        .then((thumbnailUrl) => {
+          thumbnail = thumbnailUrl ?? undefined;
+        })
+        .catch(() => {
+          // TODO: Error Handling
+          thumbnail = undefined;
+        });
+    } else {
+      thumbnail = undefined;
+    }
+  });
+</script>
+
+{#if $info}
+  <button
+    onclick={() => onclick?.($info)}
+    class="aspect-square overflow-hidden rounded transition active:scale-95 active:brightness-90"
+  >
+    {#if thumbnail}
+      <img src={thumbnail} alt={$info.name} class="h-full w-full object-cover" />
+    {:else}
+      <div class="h-full w-full bg-gray-100"></div>
+    {/if}
+  </button>
+{/if}

src/lib/components/atoms/buttons/index.ts

@@ -1,5 +1,6 @@
 export { default as ActionEntryButton } from "./ActionEntryButton.svelte";
 export { default as Button } from "./Button.svelte";
 export { default as EntryButton } from "./EntryButton.svelte";
+export { default as FileThumbnailButton } from "./FileThumbnailButton.svelte";
 export { default as FloatingButton } from "./FloatingButton.svelte";
 export { default as TextButton } from "./TextButton.svelte";

src/lib/components/atoms/index.ts

@@ -3,3 +3,4 @@ export * from "./buttons";
 export * from "./divs";
 export * from "./inputs";
 export { default as Modal } from "./Modal.svelte";
+export { default as RowVirtualizer } from "./RowVirtualizer.svelte";

src/lib/components/molecules/Categories/Categories.svelte

@@ -1,59 +1,29 @@
 <script lang="ts">
-  import { untrack, type Component } from "svelte";
+  import type { Component } from "svelte";
   import type { SvelteHTMLElements } from "svelte/elements";
-  import { get, type Writable } from "svelte/store";
-  import type { CategoryInfo } from "$lib/modules/filesystem";
-  import { SortBy, sortEntries } from "$lib/modules/util";
+  import type { SubCategoryInfo } from "$lib/modules/filesystem2.svelte";
+  import { SortBy, sortEntries } from "$lib/utils";
   import Category from "./Category.svelte";
   import type { SelectedCategory } from "./service";
 
   interface Props {
-    categories: Writable<CategoryInfo | null>[];
+    categories: SubCategoryInfo[];
     categoryMenuIcon?: Component<SvelteHTMLElements["svg"]>;
     onCategoryClick: (category: SelectedCategory) => void;
     onCategoryMenuClick?: (category: SelectedCategory) => void;
     sortBy?: SortBy;
   }
 
-  let {
-    categories,
-    categoryMenuIcon,
-    onCategoryClick,
-    onCategoryMenuClick,
-    sortBy = SortBy.NAME_ASC,
-  }: Props = $props();
+  let { categories, categoryMenuIcon, onCategoryClick, onCategoryMenuClick }: Props = $props();
 
-  let categoriesWithName: { name?: string; info: Writable<CategoryInfo | null> }[] = $state([]);
-
-  $effect(() => {
-    categoriesWithName = categories.map((category) => ({
-      name: get(category)?.name,
-      info: category,
-    }));
-
-    const sort = () => {
-      sortEntries(categoriesWithName, sortBy);
-    };
-    return untrack(() => {
-      sort();
-
-      const unsubscribes = categoriesWithName.map((category) =>
-        category.info.subscribe((value) => {
-          if (category.name === value?.name) return;
-          category.name = value?.name;
-          sort();
-        }),
-      );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
-  });
+  let categoriesWithName = $derived(sortEntries(structuredClone($state.snapshot(categories))));
 </script>
 
 {#if categoriesWithName.length > 0}
   <div class="space-y-1">
-    {#each categoriesWithName as { info }}
+    {#each categoriesWithName as category}
       <Category
-        {info}
+        info={category}
         menuIcon={categoryMenuIcon}
         onclick={onCategoryClick}
         onMenuClick={onCategoryMenuClick}

src/lib/components/molecules/Categories/Category.svelte

@@ -1,43 +1,26 @@
 <script lang="ts">
   import type { Component } from "svelte";
   import type { SvelteHTMLElements } from "svelte/elements";
-  import type { Writable } from "svelte/store";
   import { ActionEntryButton } from "$lib/components/atoms";
   import { CategoryLabel } from "$lib/components/molecules";
-  import type { CategoryInfo } from "$lib/modules/filesystem";
+  import type { SubCategoryInfo } from "$lib/modules/filesystem2.svelte";
   import type { SelectedCategory } from "./service";
 
   interface Props {
-    info: Writable<CategoryInfo | null>;
+    info: SubCategoryInfo;
     menuIcon?: Component<SvelteHTMLElements["svg"]>;
     onclick: (category: SelectedCategory) => void;
     onMenuClick?: (category: SelectedCategory) => void;
   }
 
   let { info, menuIcon, onclick, onMenuClick }: Props = $props();
-
-  const openCategory = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as CategoryInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onclick({ id, dataKey, dataKeyVersion, name });
-  };
-
-  const openMenu = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as CategoryInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onMenuClick!({ id, dataKey, dataKeyVersion, name });
-  };
 </script>
 
-{#if $info}
 <ActionEntryButton
   class="h-12"
-    onclick={openCategory}
+  onclick={() => onclick(info)}
   actionButtonIcon={menuIcon}
-    onActionButtonClick={openMenu}
+  onActionButtonClick={() => onMenuClick?.(info)}
 >
-    <CategoryLabel name={$info.name!} />
+  <CategoryLabel name={info.name} />
 </ActionEntryButton>
-{/if}

src/lib/components/molecules/Categories/service.ts

@@ -1,6 +1,5 @@
 export interface SelectedCategory {
   id: number;
-  dataKey: CryptoKey;
-  dataKeyVersion: Date;
+  dataKey?: { key: CryptoKey; version: Date };
   name: string;
 }

src/lib/components/molecules/SubCategories.svelte

@@ -1,10 +1,8 @@
 <script lang="ts">
   import type { Component } from "svelte";
   import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-  import type { Writable } from "svelte/store";
   import { Categories, IconEntryButton, type SelectedCategory } from "$lib/components/molecules";
-  import { getCategoryInfo, type CategoryInfo } from "$lib/modules/filesystem";
-  import { masterKeyStore } from "$lib/stores";
+  import type { CategoryInfo } from "$lib/modules/filesystem2.svelte";
 
   import IconAddCircle from "~icons/material-symbols/add-circle";
 
@@ -27,14 +25,6 @@
     subCategoryCreatePosition = "bottom",
     subCategoryMenuIcon,
   }: Props = $props();
-
-  let subCategories: Writable<CategoryInfo | null>[] = $state([]);
-
-  $effect(() => {
-    subCategories = info.subCategoryIds.map((id) =>
-      getCategoryInfo(id, $masterKeyStore?.get(1)?.key!),
-    );
-  });
 </script>
 
 <div class={["space-y-1", className]}>
@@ -53,14 +43,12 @@
   {#if subCategoryCreatePosition === "top"}
     {@render subCategoryCreate()}
   {/if}
-  {#key info}
   <Categories
-      categories={subCategories}
+    categories={info.subCategories}
     categoryMenuIcon={subCategoryMenuIcon}
     onCategoryClick={onSubCategoryClick}
     onCategoryMenuClick={onSubCategoryMenuClick}
   />
-  {/key}
   {#if subCategoryCreatePosition === "bottom"}
     {@render subCategoryCreate()}
   {/if}

src/lib/components/molecules/labels/DirectoryEntryLabel.svelte

@@ -3,6 +3,7 @@
   import { IconLabel } from "$lib/components/molecules";
 
   import IconFolder from "~icons/material-symbols/folder";
+  import IconDriveFolderUpload from "~icons/material-symbols/drive-folder-upload";
   import IconDraft from "~icons/material-symbols/draft";
 
   interface Props {
@@ -11,7 +12,7 @@
     subtext?: string;
     textClass?: ClassValue;
     thumbnail?: string;
-    type: "directory" | "file";
+    type: "directory" | "parent-directory" | "file";
   }
 
   let {
@@ -30,6 +31,8 @@
       <img src={thumbnail} alt={name} loading="lazy" class="aspect-square rounded object-cover" />
     {:else if type === "directory"}
       <IconFolder />
+    {:else if type === "parent-directory"}
+      <IconDriveFolderUpload class="text-yellow-500" />
     {:else}
       <IconDraft class="text-blue-400" />
     {/if}

src/lib/components/organisms/Category/Category.svelte

@@ -1,11 +1,8 @@
 <script lang="ts">
-  import { untrack } from "svelte";
-  import { get, type Writable } from "svelte/store";
-  import { CheckBox } from "$lib/components/atoms";
+  import { CheckBox, RowVirtualizer } from "$lib/components/atoms";
   import { SubCategories, type SelectedCategory } from "$lib/components/molecules";
-  import { getFileInfo, type FileInfo, type CategoryInfo } from "$lib/modules/filesystem";
-  import { SortBy, sortEntries } from "$lib/modules/util";
-  import { masterKeyStore } from "$lib/stores";
+  import type { CategoryInfo } from "$lib/modules/filesystem2.svelte";
+  import { sortEntries } from "$lib/utils";
   import File from "./File.svelte";
   import type { SelectedFile } from "./service";
 
@@ -13,13 +10,12 @@
 
   interface Props {
     info: CategoryInfo;
+    isFileRecursive: boolean | undefined;
     onFileClick: (file: SelectedFile) => void;
     onFileRemoveClick: (file: SelectedFile) => void;
     onSubCategoryClick: (subCategory: SelectedCategory) => void;
     onSubCategoryCreateClick: () => void;
     onSubCategoryMenuClick: (subCategory: SelectedCategory) => void;
-    sortBy?: SortBy;
-    isFileRecursive: boolean;
   }
 
   let {
@@ -29,43 +25,16 @@
     onSubCategoryClick,
     onSubCategoryCreateClick,
     onSubCategoryMenuClick,
-    sortBy = SortBy.NAME_ASC,
     isFileRecursive = $bindable(),
   }: Props = $props();
 
-  let files: { name?: string; info: Writable<FileInfo | null>; isRecursive: boolean }[] = $state(
-    [],
-  );
-
-  $effect(() => {
-    files =
+  let files = $derived(
+    sortEntries(
       info.files
-        ?.filter(({ isRecursive }) => isFileRecursive || !isRecursive)
-        .map(({ id, isRecursive }) => {
-          const info = getFileInfo(id, $masterKeyStore?.get(1)?.key!);
-          return {
-            name: get(info)?.name,
-            info,
-            isRecursive,
-          };
-        }) ?? [];
-
-    const sort = () => {
-      sortEntries(files, sortBy);
-    };
-    return untrack(() => {
-      sort();
-
-      const unsubscribes = files.map((file) =>
-        file.info.subscribe((value) => {
-          if (file.name === value?.name) return;
-          file.name = value?.name;
-          sort();
-        }),
+        ?.map((file) => ({ name: file.name, details: file }))
+        .filter(({ details }) => isFileRecursive || !details.isRecursive) ?? [],
+    ),
   );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
-  });
 </script>
 
 <div class="space-y-4">
@@ -89,19 +58,24 @@
           <p class="font-medium">하위 카테고리의 파일</p>
         </CheckBox>
       </div>
-      <div class="space-y-1">
-        {#key info}
-          {#each files as { info, isRecursive }}
+      <RowVirtualizer
+        count={files.length}
+        itemHeight={(index) => 48 + (index + 1 < files.length ? 4 : 0)}
+      >
+        {#snippet item(index)}
+          {@const { details } = files[index]!}
+          <div class={[index + 1 < files.length && "pb-1"]}>
             <File
-              {info}
+              info={details}
               onclick={onFileClick}
-              onRemoveClick={!isRecursive ? onFileRemoveClick : undefined}
+              onRemoveClick={!details.isRecursive ? onFileRemoveClick : undefined}
             />
-          {:else}
-            <p class="text-gray-500 text-center">이 카테고리에 추가된 파일이 없어요.</p>
-          {/each}
-        {/key}
           </div>
+        {/snippet}
+        {#snippet placeholder()}
+          <p class="text-center text-gray-500">이 카테고리에 추가된 파일이 없어요.</p>
+        {/snippet}
+      </RowVirtualizer>
     </div>
   {/if}
 </div>

src/lib/components/organisms/Category/File.svelte

@@ -1,59 +1,38 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
+  import { browser } from "$app/environment";
   import { ActionEntryButton } from "$lib/components/atoms";
   import { DirectoryEntryLabel } from "$lib/components/molecules";
-  import type { FileInfo } from "$lib/modules/filesystem";
-  import { requestFileThumbnailDownload, type SelectedFile } from "./service";
+  import type { CategoryFileInfo } from "$lib/modules/filesystem2.svelte";
+  import { requestFileThumbnailDownload } from "$lib/services/file";
+  import type { SelectedFile } from "./service";
 
   import IconClose from "~icons/material-symbols/close";
 
   interface Props {
-    info: Writable<FileInfo | null>;
-    onclick: (selectedFile: SelectedFile) => void;
-    onRemoveClick?: (selectedFile: SelectedFile) => void;
+    info: CategoryFileInfo;
+    onclick: (file: SelectedFile) => void;
+    onRemoveClick?: (file: SelectedFile) => void;
   }
 
   let { info, onclick, onRemoveClick }: Props = $props();
 
-  let thumbnail: string | undefined = $state();
-
-  const openFile = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as FileInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onclick({ id, dataKey, dataKeyVersion, name });
-  };
-
-  const removeFile = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as FileInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onRemoveClick!({ id, dataKey, dataKeyVersion, name });
-  };
-
-  $effect(() => {
-    if ($info?.dataKey) {
-      requestFileThumbnailDownload($info.id, $info.dataKey)
-        .then((thumbnailUrl) => {
-          thumbnail = thumbnailUrl ?? undefined;
-        })
-        .catch(() => {
-          // TODO: Error Handling
-          thumbnail = undefined;
-        });
-    } else {
-      thumbnail = undefined;
-    }
-  });
+  let showThumbnail = $derived(
+    browser && (info.contentType.startsWith("image/") || info.contentType.startsWith("video/")),
+  );
+  let thumbnailPromise = $derived(
+    showThumbnail ? requestFileThumbnailDownload(info.id, info.dataKey?.key) : null,
+  );
 </script>
 
-{#if $info}
 <ActionEntryButton
   class="h-12"
-    onclick={openFile}
+  onclick={() => onclick(info)}
   actionButtonIcon={onRemoveClick && IconClose}
-    onActionButtonClick={removeFile}
+  onActionButtonClick={() => onRemoveClick?.(info)}
 >
-    <DirectoryEntryLabel type="file" {thumbnail} name={$info.name} />
+  {#await thumbnailPromise}
+    <DirectoryEntryLabel type="file" name={info.name} />
+  {:then thumbnail}
+    <DirectoryEntryLabel type="file" thumbnail={thumbnail ?? undefined} name={info.name} />
+  {/await}
 </ActionEntryButton>
-{/if}

src/lib/components/organisms/Category/service.ts

@@ -1,8 +1,4 @@
-export { requestFileThumbnailDownload } from "$lib/services/file";
-
 export interface SelectedFile {
   id: number;
-  dataKey: CryptoKey;
-  dataKeyVersion: Date;
   name: string;
 }

src/lib/components/organisms/Gallery.svelte

@@ -0,0 +1,134 @@
+<script lang="ts">
+  import { untrack } from "svelte";
+  import { get, type Writable } from "svelte/store";
+  import { FileThumbnailButton, RowVirtualizer } from "$lib/components/atoms";
+  import type { FileInfo } from "$lib/modules/filesystem";
+  import { formatDate, formatDateSortable, SortBy, sortEntries } from "$lib/utils";
+
+  interface Props {
+    files: Writable<FileInfo | null>[];
+    onFileClick?: (file: FileInfo) => void;
+  }
+
+  let { files, onFileClick }: Props = $props();
+
+  type FileEntry =
+    | { date?: undefined; contentType?: undefined; info: Writable<FileInfo | null> }
+    | { date: Date; contentType: string; info: Writable<FileInfo | null> };
+  type Row =
+    | { type: "header"; label: string }
+    | { type: "items"; items: FileEntry[]; isLast: boolean };
+
+  let filesWithDate: FileEntry[] = $state([]);
+  let rows: Row[] = $state([]);
+
+  $effect(() => {
+    filesWithDate = files.map((file) => {
+      const info = get(file);
+      if (info) {
+        return {
+          date: info.createdAt ?? info.lastModifiedAt,
+          contentType: info.contentType,
+          info: file,
+        };
+      } else {
+        return { info: file };
+      }
+    });
+
+    const buildRows = () => {
+      const map = new Map<string, FileEntry[]>();
+
+      for (const file of filesWithDate) {
+        if (
+          !file.date ||
+          !(file.contentType.startsWith("image/") || file.contentType.startsWith("video/"))
+        ) {
+          continue;
+        }
+
+        const date = formatDateSortable(file.date);
+        const entries = map.get(date) ?? [];
+        entries.push(file);
+        map.set(date, entries);
+      }
+
+      const newRows: Row[] = [];
+      const sortedDates = Array.from(map.keys()).sort((a, b) => b.localeCompare(a));
+      for (const date of sortedDates) {
+        const entries = map.get(date)!;
+        sortEntries(entries, SortBy.DATE_DESC);
+
+        newRows.push({
+          type: "header",
+          label: formatDate(entries[0]!.date!),
+        });
+
+        for (let i = 0; i < entries.length; i += 4) {
+          newRows.push({
+            type: "items",
+            items: entries.slice(i, i + 4),
+            isLast: i + 4 >= entries.length,
+          });
+        }
+      }
+
+      rows = newRows;
+    };
+    return untrack(() => {
+      buildRows();
+
+      const unsubscribes = filesWithDate.map((file) =>
+        file.info.subscribe((value) => {
+          const newDate = value?.createdAt ?? value?.lastModifiedAt;
+          const newContentType = value?.contentType;
+          if (file.date?.getTime() === newDate?.getTime() && file.contentType === newContentType) {
+            return;
+          }
+
+          file.date = newDate;
+          file.contentType = newContentType;
+          buildRows();
+        }),
+      );
+      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
+    });
+  });
+</script>
+
+<RowVirtualizer
+  count={rows.length}
+  itemHeight={(index) =>
+    rows[index]!.type === "header"
+      ? 28
+      : Math.ceil(rows[index]!.items.length / 4) * 181 +
+        (Math.ceil(rows[index]!.items.length / 4) - 1) * 4 +
+        16}
+  class="flex flex-grow flex-col"
+>
+  {#snippet item(index)}
+    {@const row = rows[index]!}
+    {#if row.type === "header"}
+      <p class="pb-2 text-sm font-medium">{row.label}</p>
+    {:else}
+      <div class={["grid grid-cols-4 gap-x-1", row.isLast ? "pb-4" : "pb-1"]}>
+        {#each row.items as { info }}
+          <FileThumbnailButton {info} onclick={onFileClick} />
+        {/each}
+      </div>
+    {/if}
+  {/snippet}
+  {#snippet placeholder()}
+    <div class="flex h-full flex-grow items-center justify-center">
+      <p class="text-gray-500">
+        {#if files.length === 0}
+          업로드된 파일이 없어요.
+        {:else if filesWithDate.length === 0}
+          파일 목록을 불러오고 있어요.
+        {:else}
+          사진 또는 동영상이 없어요.
+        {/if}
+      </p>
+    </div>
+  {/snippet}
+</RowVirtualizer>

src/lib/components/organisms/index.ts

@@ -1,3 +1,4 @@
 export * from "./Category";
 export { default as Category } from "./Category";
+export { default as Gallery } from "./Gallery.svelte";
 export * from "./modals";

src/lib/hooks/callApi.ts

@@ -1,11 +0,0 @@
-export const callGetApi = async (input: RequestInfo, fetchInternal = fetch) => {
-  return await fetchInternal(input);
-};
-
-export const callPostApi = async <T>(input: RequestInfo, payload?: T, fetchInternal = fetch) => {
-  return await fetchInternal(input, {
-    method: "POST",
-    headers: { "Content-Type": "application/json" },
-    body: payload ? JSON.stringify(payload) : undefined,
-  });
-};

src/lib/hooks/index.ts

@@ -1,2 +0,0 @@
-export * from "./callApi";
-export * from "./gotoStateful";

src/lib/indexedDB/filesystem.ts

@@ -1,7 +1,5 @@
 import { Dexie, type EntityTable } from "dexie";
 
-export type DirectoryId = "root" | number;
-
 interface DirectoryInfo {
   id: number;
   parentId: DirectoryId;
@@ -18,8 +16,6 @@ interface FileInfo {
   categoryIds: number[];
 }
 
-export type CategoryId = "root" | number;
-
 interface CategoryInfo {
   id: number;
   parentId: CategoryId;

src/lib/modules/file/index.ts

@@ -1,3 +1,3 @@
 export * from "./cache";
 export * from "./download";
-export * from "./upload";
+export * from "./upload.svelte";

src/lib/modules/file/upload.svelte.ts

@@ -1,7 +1,6 @@
 import axios from "axios";
 import ExifReader from "exifreader";
 import { limitFunction } from "p-limit";
-import { writable, type Writable } from "svelte/store";
 import {
   encodeToBase64,
   generateDataKey,
@@ -13,30 +12,58 @@ import {
 } from "$lib/modules/crypto";
 import { generateThumbnail } from "$lib/modules/thumbnail";
 import type {
-  DuplicateFileScanRequest,
-  DuplicateFileScanResponse,
   FileThumbnailUploadRequest,
   FileUploadRequest,
   FileUploadResponse,
 } from "$lib/server/schemas";
-import {
-  fileUploadStatusStore,
-  type MasterKey,
-  type HmacSecret,
-  type FileUploadStatus,
-} from "$lib/stores";
+import type { MasterKey, HmacSecret } from "$lib/stores";
+import { trpc } from "$trpc/client";
+
+export interface FileUploadState {
+  name: string;
+  parentId: DirectoryId;
+  status:
+    | "encryption-pending"
+    | "encrypting"
+    | "upload-pending"
+    | "uploading"
+    | "uploaded"
+    | "canceled"
+    | "error";
+  progress?: number;
+  rate?: number;
+  estimated?: number;
+}
+
+export type LiveFileUploadState = FileUploadState & {
+  status: "encryption-pending" | "encrypting" | "upload-pending" | "uploading";
+};
+
+let uploadingFiles: FileUploadState[] = $state([]);
+
+const isFileUploading = (status: FileUploadState["status"]) =>
+  ["encryption-pending", "encrypting", "upload-pending", "uploading"].includes(status);
+
+export const getUploadingFiles = (parentId?: DirectoryId) => {
+  return uploadingFiles.filter(
+    (file): file is LiveFileUploadState =>
+      (parentId === undefined || file.parentId === parentId) && isFileUploading(file.status),
+  );
+};
+
+export const clearUploadedFiles = () => {
+  uploadingFiles = uploadingFiles.filter((file) => isFileUploading(file.status));
+};
 
 const requestDuplicateFileScan = limitFunction(
   async (file: File, hmacSecret: HmacSecret, onDuplicate: () => Promise<boolean>) => {
     const fileBuffer = await file.arrayBuffer();
     const fileSigned = encodeToBase64(await signMessageHmac(fileBuffer, hmacSecret.secret));
 
-    const res = await axios.post("/api/file/scanDuplicates", {
+    const files = await trpc().file.listByHash.query({
       hskVersion: hmacSecret.version,
       contentHmac: fileSigned,
-    } satisfies DuplicateFileScanRequest);
-    const { files }: DuplicateFileScanResponse = res.data;
-
+    });
     if (files.length === 0 || (await onDuplicate())) {
       return { fileBuffer, fileSigned };
     } else {
@@ -79,16 +106,8 @@ const extractExifDateTime = (fileBuffer: ArrayBuffer) => {
 };
 
 const encryptFile = limitFunction(
-  async (
-    status: Writable<FileUploadStatus>,
-    file: File,
-    fileBuffer: ArrayBuffer,
-    masterKey: MasterKey,
-  ) => {
-    status.update((value) => {
-      value.status = "encrypting";
-      return value;
-    });
+  async (state: FileUploadState, file: File, fileBuffer: ArrayBuffer, masterKey: MasterKey) => {
+    state.status = "encrypting";
 
     const fileType = getFileType(file);
 
@@ -112,10 +131,7 @@ const encryptFile = limitFunction(
     const thumbnailBuffer = await thumbnail?.arrayBuffer();
     const thumbnailEncrypted = thumbnailBuffer && (await encryptData(thumbnailBuffer, dataKey));
 
-    status.update((value) => {
-      value.status = "upload-pending";
-      return value;
-    });
+    state.status = "upload-pending";
 
     return {
       dataKeyWrapped,
@@ -133,20 +149,14 @@ const encryptFile = limitFunction(
 );
 
 const requestFileUpload = limitFunction(
-  async (status: Writable<FileUploadStatus>, form: FormData, thumbnailForm: FormData | null) => {
-    status.update((value) => {
-      value.status = "uploading";
-      return value;
-    });
+  async (state: FileUploadState, form: FormData, thumbnailForm: FormData | null) => {
+    state.status = "uploading";
 
     const res = await axios.post("/api/file/upload", form, {
       onUploadProgress: ({ progress, rate, estimated }) => {
-        status.update((value) => {
-          value.progress = progress;
-          value.rate = rate;
-          value.estimated = estimated;
-          return value;
-        });
+        state.progress = progress;
+        state.rate = rate;
+        state.estimated = estimated;
       },
     });
     const { file }: FileUploadResponse = res.data;
@@ -160,10 +170,7 @@ const requestFileUpload = limitFunction(
       }
     }
 
-    status.update((value) => {
-      value.status = "uploaded";
-      return value;
-    });
+    state.status = "uploaded";
 
     return { fileId: file };
   },
@@ -179,15 +186,12 @@ export const uploadFile = async (
 ): Promise<
   { fileId: number; fileBuffer: ArrayBuffer; thumbnailBuffer?: ArrayBuffer } | undefined
 > => {
-  const status = writable<FileUploadStatus>({
+  uploadingFiles.push({
     name: file.name,
     parentId,
     status: "encryption-pending",
   });
-  fileUploadStatusStore.update((value) => {
-    value.push(status);
-    return value;
-  });
+  const state = uploadingFiles.at(-1)!;
 
   try {
     const { fileBuffer, fileSigned } = await requestDuplicateFileScan(
@@ -196,14 +200,8 @@ export const uploadFile = async (
       onDuplicate,
     );
     if (!fileBuffer || !fileSigned) {
-      status.update((value) => {
-        value.status = "canceled";
-        return value;
-      });
-      fileUploadStatusStore.update((value) => {
-        value = value.filter((v) => v !== status);
-        return value;
-      });
+      state.status = "canceled";
+      uploadingFiles = uploadingFiles.filter((file) => file !== state);
       return undefined;
     }
 
@@ -217,7 +215,7 @@ export const uploadFile = async (
       createdAtEncrypted,
       lastModifiedAtEncrypted,
       thumbnail,
-    } = await encryptFile(status, file, fileBuffer, masterKey);
+    } = await encryptFile(state, file, fileBuffer, masterKey);
 
     const form = new FormData();
     form.set(
@@ -255,13 +253,10 @@ export const uploadFile = async (
       thumbnailForm.set("content", new Blob([thumbnail.ciphertext]));
     }
 
-    const { fileId } = await requestFileUpload(status, form, thumbnailForm);
+    const { fileId } = await requestFileUpload(state, form, thumbnailForm);
     return { fileId, fileBuffer, thumbnailBuffer: thumbnail?.plaintext };
   } catch (e) {
-    status.update((value) => {
-      value.status = "error";
-      return value;
-    });
+    state.status = "error";
     throw e;
   }
 };

src/lib/modules/filesystem.ts

@@ -1,50 +1,15 @@
 import { get, writable, type Writable } from "svelte/store";
-import { callGetApi } from "$lib/hooks";
 import {
-  getDirectoryInfos as getDirectoryInfosFromIndexedDB,
-  getDirectoryInfo as getDirectoryInfoFromIndexedDB,
-  storeDirectoryInfo,
-  deleteDirectoryInfo,
-  getFileInfos as getFileInfosFromIndexedDB,
   getFileInfo as getFileInfoFromIndexedDB,
   storeFileInfo,
   deleteFileInfo,
-  getCategoryInfos as getCategoryInfosFromIndexedDB,
-  getCategoryInfo as getCategoryInfoFromIndexedDB,
-  storeCategoryInfo,
-  updateCategoryInfo as updateCategoryInfoInIndexedDB,
-  deleteCategoryInfo,
-  type DirectoryId,
-  type CategoryId,
 } from "$lib/indexedDB";
 import { unwrapDataKey, decryptString } from "$lib/modules/crypto";
-import type {
-  CategoryInfoResponse,
-  CategoryFileListResponse,
-  DirectoryInfoResponse,
-  FileInfoResponse,
-} from "$lib/server/schemas";
-
-export type DirectoryInfo =
-  | {
-      id: "root";
-      dataKey?: undefined;
-      dataKeyVersion?: undefined;
-      name?: undefined;
-      subDirectoryIds: number[];
-      fileIds: number[];
-    }
-  | {
-      id: number;
-      dataKey?: CryptoKey;
-      dataKeyVersion?: Date;
-      name: string;
-      subDirectoryIds: number[];
-      fileIds: number[];
-    };
+import { trpc, isTRPCClientError } from "$trpc/client";
 
 export interface FileInfo {
   id: number;
+  parentId: DirectoryId;
   dataKey?: CryptoKey;
   dataKeyVersion?: Date;
   contentType: string;
@@ -55,111 +20,7 @@ export interface FileInfo {
   categoryIds: number[];
 }
 
-export type CategoryInfo =
-  | {
-      id: "root";
-      dataKey?: undefined;
-      dataKeyVersion?: undefined;
-      name?: undefined;
-      subCategoryIds: number[];
-      files?: undefined;
-      isFileRecursive?: undefined;
-    }
-  | {
-      id: number;
-      dataKey?: CryptoKey;
-      dataKeyVersion?: Date;
-      name: string;
-      subCategoryIds: number[];
-      files: { id: number; isRecursive: boolean }[];
-      isFileRecursive: boolean;
-    };
-
-const directoryInfoStore = new Map<DirectoryId, Writable<DirectoryInfo | null>>();
 const fileInfoStore = new Map<number, Writable<FileInfo | null>>();
-const categoryInfoStore = new Map<CategoryId, Writable<CategoryInfo | null>>();
-
-const fetchDirectoryInfoFromIndexedDB = async (
-  id: DirectoryId,
-  info: Writable<DirectoryInfo | null>,
-) => {
-  if (get(info)) return;
-
-  const [directory, subDirectories, files] = await Promise.all([
-    id !== "root" ? getDirectoryInfoFromIndexedDB(id) : undefined,
-    getDirectoryInfosFromIndexedDB(id),
-    getFileInfosFromIndexedDB(id),
-  ]);
-  const subDirectoryIds = subDirectories.map(({ id }) => id);
-  const fileIds = files.map(({ id }) => id);
-
-  if (id === "root") {
-    info.set({ id, subDirectoryIds, fileIds });
-  } else {
-    if (!directory) return;
-    info.set({ id, name: directory.name, subDirectoryIds, fileIds });
-  }
-};
-
-const fetchDirectoryInfoFromServer = async (
-  id: DirectoryId,
-  info: Writable<DirectoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  const res = await callGetApi(`/api/directory/${id}`);
-  if (res.status === 404) {
-    info.set(null);
-    await deleteDirectoryInfo(id as number);
-    return;
-  } else if (!res.ok) {
-    throw new Error("Failed to fetch directory information");
-  }
-
-  const {
-    metadata,
-    subDirectories: subDirectoryIds,
-    files: fileIds,
-  }: DirectoryInfoResponse = await res.json();
-
-  if (id === "root") {
-    info.set({ id, subDirectoryIds, fileIds });
-  } else {
-    const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
-    const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
-
-    info.set({
-      id,
-      dataKey,
-      dataKeyVersion: new Date(metadata!.dekVersion),
-      name,
-      subDirectoryIds,
-      fileIds,
-    });
-    await storeDirectoryInfo({ id, parentId: metadata!.parent, name });
-  }
-};
-
-const fetchDirectoryInfo = async (
-  id: DirectoryId,
-  info: Writable<DirectoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  await fetchDirectoryInfoFromIndexedDB(id, info);
-  await fetchDirectoryInfoFromServer(id, info, masterKey);
-};
-
-export const getDirectoryInfo = (id: DirectoryId, masterKey: CryptoKey) => {
-  // TODO: MEK rotation
-
-  let info = directoryInfoStore.get(id);
-  if (!info) {
-    info = writable(null);
-    directoryInfoStore.set(id, info);
-  }
-
-  fetchDirectoryInfo(id, info, masterKey); // Intended
-  return info;
-};
 
 const fetchFileInfoFromIndexedDB = async (id: number, info: Writable<FileInfo | null>) => {
   if (get(info)) return;
@@ -179,16 +40,17 @@ const fetchFileInfoFromServer = async (
   info: Writable<FileInfo | null>,
   masterKey: CryptoKey,
 ) => {
-  const res = await callGetApi(`/api/file/${id}`);
-  if (res.status === 404) {
+  let metadata;
+  try {
+    metadata = await trpc().file.get.query({ id });
+  } catch (e) {
+    if (isTRPCClientError(e) && e.data?.code === "NOT_FOUND") {
       info.set(null);
       await deleteFileInfo(id);
       return;
-  } else if (!res.ok) {
+    }
     throw new Error("Failed to fetch file information");
   }
-
-  const metadata: FileInfoResponse = await res.json();
   const { dataKey } = await unwrapDataKey(metadata.dek, masterKey);
 
   const name = await decryptString(metadata.name, metadata.nameIv, dataKey);
@@ -204,6 +66,7 @@ const fetchFileInfoFromServer = async (
 
   info.set({
     id,
+    parentId: metadata.parent,
     dataKey,
     dataKeyVersion: new Date(metadata.dekVersion),
     contentType: metadata.contentType,
@@ -241,120 +104,3 @@ export const getFileInfo = (fileId: number, masterKey: CryptoKey) => {
   fetchFileInfo(fileId, info, masterKey); // Intended
   return info;
 };
-
-const fetchCategoryInfoFromIndexedDB = async (
-  id: CategoryId,
-  info: Writable<CategoryInfo | null>,
-) => {
-  if (get(info)) return;
-
-  const [category, subCategories] = await Promise.all([
-    id !== "root" ? getCategoryInfoFromIndexedDB(id) : undefined,
-    getCategoryInfosFromIndexedDB(id),
-  ]);
-  const subCategoryIds = subCategories.map(({ id }) => id);
-
-  if (id === "root") {
-    info.set({ id, subCategoryIds });
-  } else {
-    if (!category) return;
-    info.set({
-      id,
-      name: category.name,
-      subCategoryIds,
-      files: category.files,
-      isFileRecursive: category.isFileRecursive,
-    });
-  }
-};
-
-const fetchCategoryInfoFromServer = async (
-  id: CategoryId,
-  info: Writable<CategoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  let res = await callGetApi(`/api/category/${id}`);
-  if (res.status === 404) {
-    info.set(null);
-    await deleteCategoryInfo(id as number);
-    return;
-  } else if (!res.ok) {
-    throw new Error("Failed to fetch category information");
-  }
-
-  const { metadata, subCategories }: CategoryInfoResponse = await res.json();
-
-  if (id === "root") {
-    info.set({ id, subCategoryIds: subCategories });
-  } else {
-    const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
-    const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
-
-    res = await callGetApi(`/api/category/${id}/file/list?recurse=true`);
-    if (!res.ok) {
-      throw new Error("Failed to fetch category files");
-    }
-
-    const { files }: CategoryFileListResponse = await res.json();
-    const filesMapped = files.map(({ file, isRecursive }) => ({ id: file, isRecursive }));
-    let isFileRecursive: boolean | undefined = undefined;
-
-    info.update((value) => {
-      const newValue = {
-        isFileRecursive: false,
-        ...value,
-        id,
-        dataKey,
-        dataKeyVersion: new Date(metadata!.dekVersion),
-        name,
-        subCategoryIds: subCategories,
-        files: filesMapped,
-      };
-      isFileRecursive = newValue.isFileRecursive;
-      return newValue;
-    });
-    await storeCategoryInfo({
-      id,
-      parentId: metadata!.parent,
-      name,
-      files: filesMapped,
-      isFileRecursive: isFileRecursive!,
-    });
-  }
-};
-
-const fetchCategoryInfo = async (
-  id: CategoryId,
-  info: Writable<CategoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  await fetchCategoryInfoFromIndexedDB(id, info);
-  await fetchCategoryInfoFromServer(id, info, masterKey);
-};
-
-export const getCategoryInfo = (categoryId: CategoryId, masterKey: CryptoKey) => {
-  // TODO: MEK rotation
-
-  let info = categoryInfoStore.get(categoryId);
-  if (!info) {
-    info = writable(null);
-    categoryInfoStore.set(categoryId, info);
-  }
-
-  fetchCategoryInfo(categoryId, info, masterKey); // Intended
-  return info;
-};
-
-export const updateCategoryInfo = async (
-  categoryId: number,
-  changes: { isFileRecursive?: boolean },
-) => {
-  await updateCategoryInfoInIndexedDB(categoryId, changes);
-  categoryInfoStore.get(categoryId)?.update((value) => {
-    if (!value) return value;
-    if (changes.isFileRecursive !== undefined) {
-      value.isFileRecursive = changes.isFileRecursive;
-    }
-    return value;
-  });
-};

src/lib/modules/filesystem2.svelte.ts

@@ -0,0 +1,341 @@
+import {
+  getDirectoryInfos as getDirectoryInfosFromIndexedDB,
+  getDirectoryInfo as getDirectoryInfoFromIndexedDB,
+  storeDirectoryInfo,
+  deleteDirectoryInfo,
+  getFileInfos as getFileInfosFromIndexedDB,
+  getFileInfo as getFileInfoFromIndexedDB,
+  storeFileInfo,
+  deleteFileInfo,
+  getCategoryInfos as getCategoryInfosFromIndexedDB,
+  getCategoryInfo as getCategoryInfoFromIndexedDB,
+  storeCategoryInfo,
+  updateCategoryInfo as updateCategoryInfoInIndexedDB,
+  deleteCategoryInfo,
+} from "$lib/indexedDB";
+import { unwrapDataKey, decryptString } from "$lib/modules/crypto";
+import { monotonicResolve } from "$lib/utils";
+import { trpc, isTRPCClientError } from "$trpc/client";
+
+type DataKey = { key: CryptoKey; version: Date };
+
+interface LocalDirectoryInfo {
+  id: number;
+  parentId: DirectoryId;
+  dataKey?: DataKey;
+  name: string;
+  subDirectories: SubDirectoryInfo[];
+  files: SummarizedFileInfo[];
+}
+
+interface RootDirectoryInfo {
+  id: "root";
+  parentId?: undefined;
+  dataKey?: undefined;
+  dataKeyVersion?: undefined;
+  name?: undefined;
+  subDirectories: SubDirectoryInfo[];
+  files: SummarizedFileInfo[];
+}
+
+export type DirectoryInfo = LocalDirectoryInfo | RootDirectoryInfo;
+export type SubDirectoryInfo = Omit<LocalDirectoryInfo, "parentId" | "subDirectories" | "files">;
+
+interface FileInfo {
+  id: number;
+  parentId: DirectoryId;
+  dataKey?: DataKey;
+  contentType: string;
+  contentIv: string | undefined;
+  name: string;
+  createdAt?: Date;
+  lastModifiedAt: Date;
+  categories: { id: number; name: string }[];
+}
+
+export type SummarizedFileInfo = Omit<FileInfo, "parentId" | "contentIv" | "categories">;
+export type CategoryFileInfo = SummarizedFileInfo & { isRecursive: boolean };
+
+interface LocalCategoryInfo {
+  id: number;
+  dataKey?: DataKey | undefined;
+  name: string;
+  subCategories: SubCategoryInfo[];
+  files: CategoryFileInfo[];
+  isFileRecursive: boolean;
+}
+
+interface RootCategoryInfo {
+  id: "root";
+  dataKey?: undefined;
+  name?: undefined;
+  subCategories: SubCategoryInfo[];
+  files?: undefined;
+  isFileRecursive?: undefined;
+}
+
+export type CategoryInfo = LocalCategoryInfo | RootCategoryInfo;
+export type SubCategoryInfo = Omit<
+  LocalCategoryInfo,
+  "subCategories" | "files" | "isFileRecursive"
+>;
+
+const directoryInfoCache = new Map<DirectoryId, DirectoryInfo | Promise<DirectoryInfo>>();
+const categoryInfoCache = new Map<CategoryId, CategoryInfo | Promise<CategoryInfo>>();
+
+export const getDirectoryInfo = async (id: DirectoryId, masterKey: CryptoKey) => {
+  const info = directoryInfoCache.get(id);
+  if (info instanceof Promise) {
+    return info;
+  }
+
+  const { promise, resolve } = Promise.withResolvers<DirectoryInfo>();
+  if (!info) {
+    directoryInfoCache.set(id, promise);
+  }
+
+  monotonicResolve(
+    [!info && fetchDirectoryInfoFromIndexedDB(id), fetchDirectoryInfoFromServer(id, masterKey)],
+    (directoryInfo) => {
+      let info = directoryInfoCache.get(id);
+      if (info instanceof Promise) {
+        const state = $state(directoryInfo);
+        directoryInfoCache.set(id, state);
+        resolve(state);
+      } else {
+        Object.assign(info!, directoryInfo);
+        resolve(info!);
+      }
+    },
+  );
+  return info ?? promise;
+};
+
+const fetchDirectoryInfoFromIndexedDB = async (
+  id: DirectoryId,
+): Promise<DirectoryInfo | undefined> => {
+  const [directory, subDirectories, files] = await Promise.all([
+    id !== "root" ? getDirectoryInfoFromIndexedDB(id) : undefined,
+    getDirectoryInfosFromIndexedDB(id),
+    getFileInfosFromIndexedDB(id),
+  ]);
+
+  if (id === "root") {
+    return { id, subDirectories, files };
+  } else if (directory) {
+    return { id, parentId: directory.parentId, name: directory.name, subDirectories, files };
+  }
+};
+
+const fetchDirectoryInfoFromServer = async (
+  id: DirectoryId,
+  masterKey: CryptoKey,
+): Promise<DirectoryInfo | undefined> => {
+  try {
+    const {
+      metadata,
+      subDirectories: subDirectoriesRaw,
+      files: filesRaw,
+    } = await trpc().directory.get.query({ id });
+    const [subDirectories, files] = await Promise.all([
+      Promise.all(
+        subDirectoriesRaw.map(async (directory) => {
+          const { dataKey } = await unwrapDataKey(directory.dek, masterKey);
+          const name = await decryptString(directory.name, directory.nameIv, dataKey);
+          return {
+            id: directory.id,
+            dataKey: { key: dataKey, version: directory.dekVersion },
+            name,
+          };
+        }),
+      ),
+      Promise.all(
+        filesRaw.map(async (file) => {
+          const { dataKey } = await unwrapDataKey(file.dek, masterKey);
+          const [name, createdAt, lastModifiedAt] = await Promise.all([
+            decryptString(file.name, file.nameIv, dataKey),
+            file.createdAt ? decryptDate(file.createdAt, file.createdAtIv!, dataKey) : undefined,
+            decryptDate(file.lastModifiedAt, file.lastModifiedAtIv, dataKey),
+          ]);
+          return {
+            id: file.id,
+            dataKey: { key: dataKey, version: file.dekVersion },
+            contentType: file.contentType,
+            name,
+            createdAt,
+            lastModifiedAt,
+          };
+        }),
+      ),
+    ]);
+
+    if (id === "root") {
+      return { id, subDirectories, files };
+    } else {
+      const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
+      const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
+      return {
+        id,
+        parentId: metadata!.parent,
+        dataKey: { key: dataKey, version: metadata!.dekVersion },
+        name,
+        subDirectories,
+        files,
+      };
+    }
+  } catch (e) {
+    if (isTRPCClientError(e) && e.data?.code === "NOT_FOUND") {
+      directoryInfoCache.delete(id);
+      await deleteDirectoryInfo(id as number);
+      return;
+    }
+    throw new Error("Failed to fetch directory information");
+  }
+};
+
+const decryptDate = async (ciphertext: string, iv: string, dataKey: CryptoKey) => {
+  return new Date(parseInt(await decryptString(ciphertext, iv, dataKey), 10));
+};
+
+export const getCategoryInfo = async (id: CategoryId, masterKey: CryptoKey) => {
+  const info = categoryInfoCache.get(id);
+  if (info instanceof Promise) {
+    return info;
+  }
+
+  const { promise, resolve } = Promise.withResolvers<CategoryInfo>();
+  if (!info) {
+    categoryInfoCache.set(id, promise);
+    const categoryInfo = await fetchCategoryInfoFromIndexedDB(id);
+    if (categoryInfo) {
+      const state = $state(categoryInfo);
+      categoryInfoCache.set(id, state);
+      resolve(state);
+    }
+  }
+
+  fetchCategoryInfoFromServer(id, masterKey).then((categoryInfo) => {
+    if (!categoryInfo) return;
+
+    let info = categoryInfoCache.get(id);
+    if (info instanceof Promise) {
+      const state = $state(categoryInfo);
+      categoryInfoCache.set(id, state);
+      resolve(state);
+    } else {
+      Object.assign(info!, categoryInfo);
+      resolve(info!);
+    }
+  });
+
+  return info ?? promise;
+};
+
+const fetchCategoryInfoFromIndexedDB = async (
+  id: CategoryId,
+): Promise<CategoryInfo | undefined> => {
+  const [category, subCategories] = await Promise.all([
+    id !== "root" ? getCategoryInfoFromIndexedDB(id) : undefined,
+    getCategoryInfosFromIndexedDB(id),
+  ]);
+  const files = category
+    ? await Promise.all(
+        category.files.map(async (file) => {
+          const fileInfo = await getFileInfoFromIndexedDB(file.id);
+          return fileInfo
+            ? {
+                id: file.id,
+                contentType: fileInfo.contentType,
+                name: fileInfo.name,
+                createdAt: fileInfo.createdAt,
+                lastModifiedAt: fileInfo.lastModifiedAt,
+                isRecursive: file.isRecursive,
+              }
+            : undefined;
+        }),
+      )
+    : undefined;
+
+  if (id === "root") {
+    return { id, subCategories };
+  } else if (category) {
+    return {
+      id,
+      name: category.name,
+      subCategories,
+      files: files!.filter((file) => !!file),
+      isFileRecursive: category.isFileRecursive,
+    };
+  }
+};
+
+const fetchCategoryInfoFromServer = async (
+  id: CategoryId,
+  masterKey: CryptoKey,
+): Promise<CategoryInfo | undefined> => {
+  try {
+    const {
+      metadata,
+      subCategories: subCategoriesRaw,
+      files: filesRaw,
+    } = await trpc().category.get.query({ id, recurse: true });
+    const [subCategories, files] = await Promise.all([
+      Promise.all(
+        subCategoriesRaw.map(async (category) => {
+          const { dataKey } = await unwrapDataKey(category.dek, masterKey);
+          const name = await decryptString(category.name, category.nameIv, dataKey);
+          return {
+            id: category.id,
+            dataKey: { key: dataKey, version: category.dekVersion },
+            name,
+          };
+        }),
+      ),
+      id !== "root"
+        ? Promise.all(
+            filesRaw!.map(async (file) => {
+              const { dataKey } = await unwrapDataKey(file.dek, masterKey);
+              const [name, createdAt, lastModifiedAt] = await Promise.all([
+                decryptString(file.name, file.nameIv, dataKey),
+                file.createdAt
+                  ? decryptDate(file.createdAt, file.createdAtIv!, dataKey)
+                  : undefined,
+                decryptDate(file.lastModifiedAt, file.lastModifiedAtIv, dataKey),
+              ]);
+              return {
+                id: file.id,
+                dataKey: { key: dataKey, version: file.dekVersion },
+                contentType: file.contentType,
+                name,
+                createdAt,
+                lastModifiedAt,
+                isRecursive: file.isRecursive,
+              };
+            }),
+          )
+        : undefined,
+    ]);
+
+    if (id === "root") {
+      return { id, subCategories };
+    } else {
+      const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
+      const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
+      return {
+        id,
+        dataKey: { key: dataKey, version: metadata!.dekVersion },
+        name,
+        subCategories,
+        files: files!,
+        isFileRecursive: false,
+      };
+    }
+  } catch (e) {
+    if (isTRPCClientError(e) && e.data?.code === "NOT_FOUND") {
+      categoryInfoCache.delete(id);
+      await deleteCategoryInfo(id as number);
+      return;
+    }
+    throw new Error("Failed to fetch category information");
+  }
+};

src/lib/modules/key.ts

@@ -5,14 +5,14 @@ import type { ClientKeys } from "$lib/stores";
 const serializedClientKeysSchema = z.intersection(
   z.object({
     generator: z.literal("ArkVault"),
-    exportedAt: z.string().datetime(),
+    exportedAt: z.iso.datetime(),
   }),
   z.object({
     version: z.literal(1),
-    encryptKey: z.string().base64().nonempty(),
-    decryptKey: z.string().base64().nonempty(),
-    signKey: z.string().base64().nonempty(),
-    verifyKey: z.string().base64().nonempty(),
+    encryptKey: z.base64().nonempty(),
+    decryptKey: z.base64().nonempty(),
+    signKey: z.base64().nonempty(),
+    verifyKey: z.base64().nonempty(),
   }),
 );
 

src/lib/modules/thumbnail.ts

@@ -67,10 +67,15 @@ const generateVideoThumbnail = (videoUrl: string, time = 0) => {
   return new Promise<Blob>((resolve, reject) => {
     const video = document.createElement("video");
     video.onloadedmetadata = () => {
-      video.currentTime = Math.min(time, video.duration);
-      video.requestVideoFrameCallback(() => {
+      if (video.videoWidth === 0 || video.videoHeight === 0) {
+        return reject();
+      }
+
+      const callbackId = video.requestVideoFrameCallback(() => {
         captureVideoThumbnail(video).then(resolve).catch(reject);
+        video.cancelVideoFrameCallback(callbackId);
       });
+      video.currentTime = Math.min(time, video.duration);
     };
     video.onerror = reject;
 

src/lib/server/db/category.ts

@@ -2,8 +2,6 @@ import { IntegrityError } from "./error";
 import db from "./kysely";
 import type { Ciphertext } from "./schema";
 
-export type CategoryId = "root" | number;
-
 interface Category {
   id: number;
   parentId: CategoryId;

src/lib/server/db/client.ts

@@ -98,22 +98,6 @@ export const createUserClient = async (userId: number, clientId: number) => {
   }
 };
 
-export const getAllUserClients = async (userId: number) => {
-  const userClients = await db
-    .selectFrom("user_client")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .execute();
-  return userClients.map(
-    ({ user_id, client_id, state }) =>
-      ({
-        userId: user_id,
-        clientId: client_id,
-        state,
-      }) satisfies UserClient,
-  );
-};
-
 export const getUserClient = async (userId: number, clientId: number) => {
   const userClient = await db
     .selectFrom("user_client")

src/lib/server/db/file.ts

@@ -4,8 +4,6 @@ import { IntegrityError } from "./error";
 import db from "./kysely";
 import type { Ciphertext } from "./schema";
 
-export type DirectoryId = "root" | number;
-
 interface Directory {
   id: number;
   parentId: DirectoryId;
@@ -306,39 +304,51 @@ export const getAllFilesByCategory = async (
   recurse: boolean,
 ) => {
   const files = await db
-    .withRecursive("cte", (db) =>
+    .withRecursive("category_tree", (db) =>
       db
         .selectFrom("category")
-        .leftJoin("file_category", "category.id", "file_category.category_id")
-        .select(["id", "parent_id", "user_id", "file_category.file_id"])
-        .select(sql<number>`0`.as("depth"))
+        .select(["id", sql<number>`0`.as("depth")])
         .where("id", "=", categoryId)
+        .where("user_id", "=", userId)
         .$if(recurse, (qb) =>
           qb.unionAll((db) =>
             db
               .selectFrom("category")
-              .leftJoin("file_category", "category.id", "file_category.category_id")
-              .innerJoin("cte", "category.parent_id", "cte.id")
-              .select([
-                "category.id",
-                "category.parent_id",
-                "category.user_id",
-                "file_category.file_id",
-              ])
-              .select(sql<number>`cte.depth + 1`.as("depth")),
+              .innerJoin("category_tree", "category.parent_id", "category_tree.id")
+              .select(["category.id", sql<number>`depth + 1`.as("depth")]),
           ),
         ),
     )
-    .selectFrom("cte")
+    .selectFrom("category_tree")
+    .innerJoin("file_category", "category_tree.id", "file_category.category_id")
+    .innerJoin("file", "file_category.file_id", "file.id")
     .select(["file_id", "depth"])
+    .selectAll("file")
     .distinctOn("file_id")
-    .where("user_id", "=", userId)
-    .where("file_id", "is not", null)
-    .$narrowType<{ file_id: NotNull }>()
     .orderBy("file_id")
     .orderBy("depth")
     .execute();
-  return files.map(({ file_id, depth }) => ({ id: file_id, isRecursive: depth > 0 }));
+  return files.map(
+    (file) =>
+      ({
+        id: file.file_id,
+        parentId: file.parent_id ?? "root",
+        userId: file.user_id,
+        path: file.path,
+        mekVersion: file.master_encryption_key_version,
+        encDek: file.encrypted_data_encryption_key,
+        dekVersion: file.data_encryption_key_version,
+        hskVersion: file.hmac_secret_key_version,
+        contentHmac: file.content_hmac,
+        contentType: file.content_type,
+        encContentIv: file.encrypted_content_iv,
+        encContentHash: file.encrypted_content_hash,
+        encName: file.encrypted_name,
+        encCreatedAt: file.encrypted_created_at,
+        encLastModifiedAt: file.encrypted_last_modified_at,
+        isRecursive: file.depth > 0,
+      }) satisfies File & { isRecursive: boolean },
+  );
 };
 
 export const getAllFileIds = async (userId: number) => {

src/lib/server/db/index.ts

@@ -0,0 +1,10 @@
+export * as CategoryRepo from "./category";
+export * as ClientRepo from "./client";
+export * as FileRepo from "./file";
+export * as HskRepo from "./hsk";
+export * as MediaRepo from "./media";
+export * as MekRepo from "./mek";
+export * as SessionRepo from "./session";
+export * as UserRepo from "./user";
+
+export * from "./error";

src/lib/server/db/mek.ts

@@ -60,19 +60,6 @@ export const registerInitialMek = async (
   });
 };
 
-export const getInitialMek = async (userId: number) => {
-  const mek = await db
-    .selectFrom("master_encryption_key")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .where("version", "=", 1)
-    .limit(1)
-    .executeTakeFirst();
-  return mek
-    ? ({ userId: mek.user_id, version: mek.version, state: mek.state } satisfies Mek)
-    : null;
-};
-
 export const getAllValidClientMeks = async (userId: number, clientId: number) => {
   const clientMeks = await db
     .selectFrom("client_master_encryption_key")

src/lib/server/db/user.ts

@@ -27,10 +27,6 @@ export const getUserByEmail = async (email: string) => {
   return user ? (user satisfies User) : null;
 };
 
-export const setUserNickname = async (userId: number, nickname: string) => {
-  await db.updateTable("user").set({ nickname }).where("id", "=", userId).execute();
-};
-
 export const setUserPassword = async (userId: number, password: string) => {
   await db.updateTable("user").set({ password }).where("id", "=", userId).execute();
 };

src/lib/server/middlewares/authenticate.ts

@@ -1,13 +1,7 @@
 import { error, redirect, type Handle } from "@sveltejs/kit";
-import env from "$lib/server/loadenv";
-import { authenticate, AuthenticationError } from "$lib/server/modules/auth";
+import { cookieOptions, authenticate, AuthenticationError } from "$lib/server/modules/auth";
 
 export const authenticateMiddleware: Handle = async ({ event, resolve }) => {
-  const { pathname, search } = event.url;
-  if (pathname === "/api/auth/login") {
-    return await resolve(event);
-  }
-
   try {
     const sessionIdSigned = event.cookies.get("sessionId");
     if (!sessionIdSigned) {
@@ -16,15 +10,11 @@ export const authenticateMiddleware: Handle = async ({ event, resolve }) => {
 
     const { ip, userAgent } = event.locals;
     event.locals.session = await authenticate(sessionIdSigned, ip, userAgent);
-    event.cookies.set("sessionId", sessionIdSigned, {
-      path: "/",
-      maxAge: env.session.exp / 1000,
-      secure: true,
-      sameSite: "strict",
-    });
+    event.cookies.set("sessionId", sessionIdSigned, cookieOptions);
   } catch (e) {
     if (e instanceof AuthenticationError) {
-      if (pathname === "/auth/login") {
+      const { pathname, search } = event.url;
+      if (pathname === "/auth/login" || pathname.startsWith("/api/trpc")) {
         return await resolve(event);
       } else if (pathname.startsWith("/api")) {
         error(e.status, e.message);

src/lib/server/modules/auth.ts

@@ -1,20 +1,25 @@
 import { error } from "@sveltejs/kit";
-import { getUserClient } from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import { createSession, refreshSession } from "$lib/server/db/session";
+import { ClientRepo, SessionRepo, IntegrityError } from "$lib/server/db";
 import env from "$lib/server/loadenv";
-import { issueSessionId, verifySessionId } from "$lib/server/modules/crypto";
+import { verifySessionId } from "$lib/server/modules/crypto";
 
-interface Session {
+export interface Session {
   sessionId: string;
   userId: number;
   clientId?: number;
 }
 
-interface ClientSession extends Session {
+export interface ClientSession extends Session {
   clientId: number;
 }
 
+export type SessionPermission =
+  | "any"
+  | "notClient"
+  | "anyClient"
+  | "pendingClient"
+  | "activeClient";
+
 export class AuthenticationError extends Error {
   constructor(
     public status: 400 | 401,
@@ -25,11 +30,22 @@ export class AuthenticationError extends Error {
   }
 }
 
-export const startSession = async (userId: number, ip: string, userAgent: string) => {
-  const { sessionId, sessionIdSigned } = await issueSessionId(32, env.session.secret);
-  await createSession(userId, sessionId, ip, userAgent);
-  return sessionIdSigned;
-};
+export class AuthorizationError extends Error {
+  constructor(
+    public status: 403 | 500,
+    message: string,
+  ) {
+    super(message);
+    this.name = "AuthorizationError";
+  }
+}
+
+export const cookieOptions = {
+  path: "/",
+  maxAge: env.session.exp / 1000,
+  secure: true,
+  sameSite: "strict",
+} as const;
 
 export const authenticate = async (sessionIdSigned: string, ip: string, userAgent: string) => {
   const sessionId = verifySessionId(sessionIdSigned, env.session.secret);
@@ -38,7 +54,7 @@ export const authenticate = async (sessionIdSigned: string, ip: string, userAgen
   }
 
   try {
-    const { userId, clientId } = await refreshSession(sessionId, ip, userAgent);
+    const { userId, clientId } = await SessionRepo.refreshSession(sessionId, ip, userAgent);
     return {
       id: sessionId,
       userId,
@@ -52,34 +68,12 @@ export const authenticate = async (sessionIdSigned: string, ip: string, userAgen
   }
 };
 
-export async function authorize(locals: App.Locals, requiredPermission: "any"): Promise<Session>;
-
-export async function authorize(
+export const authorizeInternal = async (
   locals: App.Locals,
-  requiredPermission: "notClient",
-): Promise<Session>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "anyClient",
-): Promise<ClientSession>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "pendingClient",
-): Promise<ClientSession>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "activeClient",
-): Promise<ClientSession>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "any" | "notClient" | "anyClient" | "pendingClient" | "activeClient",
-): Promise<Session> {
+  requiredPermission: SessionPermission,
+): Promise<Session> => {
   if (!locals.session) {
-    error(500, "Unauthenticated");
+    throw new AuthorizationError(500, "Unauthenticated");
   }
 
   const { id: sessionId, userId, clientId } = locals.session;
@@ -89,39 +83,63 @@ export async function authorize(
       break;
     case "notClient":
       if (clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     case "anyClient":
       if (!clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     case "pendingClient": {
       if (!clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
-      const userClient = await getUserClient(userId, clientId);
+      const userClient = await ClientRepo.getUserClient(userId, clientId);
       if (!userClient) {
-        error(500, "Invalid session id");
+        throw new AuthorizationError(500, "Invalid session id");
       } else if (userClient.state !== "pending") {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     }
     case "activeClient": {
       if (!clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
-      const userClient = await getUserClient(userId, clientId);
+      const userClient = await ClientRepo.getUserClient(userId, clientId);
       if (!userClient) {
-        error(500, "Invalid session id");
+        throw new AuthorizationError(500, "Invalid session id");
       } else if (userClient.state !== "active") {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     }
   }
 
   return { sessionId, userId, clientId };
+};
+
+export async function authorize(
+  locals: App.Locals,
+  requiredPermission: "any" | "notClient",
+): Promise<Session>;
+
+export async function authorize(
+  locals: App.Locals,
+  requiredPermission: "anyClient" | "pendingClient" | "activeClient",
+): Promise<ClientSession>;
+
+export async function authorize(
+  locals: App.Locals,
+  requiredPermission: SessionPermission,
+): Promise<Session> {
+  try {
+    return await authorizeInternal(locals, requiredPermission);
+  } catch (e) {
+    if (e instanceof AuthorizationError) {
+      error(e.status, e.message);
+    }
+    throw e;
+  }
 }

src/lib/server/modules/filesystem.ts

@@ -0,0 +1,7 @@
+import { unlink } from "fs/promises";
+
+export const safeUnlink = async (path: string | null | undefined) => {
+  if (path) {
+    await unlink(path).catch(console.error);
+  }
+};

src/lib/server/modules/mek.ts

@@ -1,25 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { getUserClientWithDetails } from "$lib/server/db/client";
-import { getInitialMek } from "$lib/server/db/mek";
-import { verifySignature } from "$lib/server/modules/crypto";
-
-export const isInitialMekNeeded = async (userId: number) => {
-  const initialMek = await getInitialMek(userId);
-  return !initialMek;
-};
-
-export const verifyClientEncMekSig = async (
-  userId: number,
-  clientId: number,
-  version: number,
-  encMek: string,
-  encMekSig: string,
-) => {
-  const userClient = await getUserClientWithDetails(userId, clientId);
-  if (!userClient) {
-    error(500, "Invalid session id");
-  }
-
-  const data = JSON.stringify({ version, key: encMek });
-  return verifySignature(Buffer.from(data), encMekSig, userClient.sigPubKey);
-};

src/lib/server/schemas/auth.ts

@@ -1,32 +0,0 @@
-import { z } from "zod";
-
-export const passwordChangeRequest = z.object({
-  oldPassword: z.string().trim().nonempty(),
-  newPassword: z.string().trim().nonempty(),
-});
-export type PasswordChangeRequest = z.input<typeof passwordChangeRequest>;
-
-export const loginRequest = z.object({
-  email: z.string().email(),
-  password: z.string().trim().nonempty(),
-});
-export type LoginRequest = z.input<typeof loginRequest>;
-
-export const sessionUpgradeRequest = z.object({
-  encPubKey: z.string().base64().nonempty(),
-  sigPubKey: z.string().base64().nonempty(),
-});
-export type SessionUpgradeRequest = z.input<typeof sessionUpgradeRequest>;
-
-export const sessionUpgradeResponse = z.object({
-  id: z.number().int().positive(),
-  challenge: z.string().base64().nonempty(),
-});
-export type SessionUpgradeResponse = z.output<typeof sessionUpgradeResponse>;
-
-export const sessionUpgradeVerifyRequest = z.object({
-  id: z.number().int().positive(),
-  answerSig: z.string().base64().nonempty(),
-  force: z.boolean().default(false),
-});
-export type SessionUpgradeVerifyRequest = z.input<typeof sessionUpgradeVerifyRequest>;

src/lib/server/schemas/category.ts

@@ -1,55 +1,3 @@
 import { z } from "zod";
 
-export const categoryIdSchema = z.union([z.literal("root"), z.number().int().positive()]);
-
-export const categoryInfoResponse = z.object({
-  metadata: z
-    .object({
-      parent: categoryIdSchema,
-      mekVersion: z.number().int().positive(),
-      dek: z.string().base64().nonempty(),
-      dekVersion: z.string().datetime(),
-      name: z.string().base64().nonempty(),
-      nameIv: z.string().base64().nonempty(),
-    })
-    .optional(),
-  subCategories: z.number().int().positive().array(),
-});
-export type CategoryInfoResponse = z.output<typeof categoryInfoResponse>;
-
-export const categoryFileAddRequest = z.object({
-  file: z.number().int().positive(),
-});
-export type CategoryFileAddRequest = z.input<typeof categoryFileAddRequest>;
-
-export const categoryFileListResponse = z.object({
-  files: z.array(
-    z.object({
-      file: z.number().int().positive(),
-      isRecursive: z.boolean(),
-    }),
-  ),
-});
-export type CategoryFileListResponse = z.output<typeof categoryFileListResponse>;
-
-export const categoryFileRemoveRequest = z.object({
-  file: z.number().int().positive(),
-});
-export type CategoryFileRemoveRequest = z.input<typeof categoryFileRemoveRequest>;
-
-export const categoryRenameRequest = z.object({
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type CategoryRenameRequest = z.input<typeof categoryRenameRequest>;
-
-export const categoryCreateRequest = z.object({
-  parent: categoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type CategoryCreateRequest = z.input<typeof categoryCreateRequest>;
+export const categoryIdSchema = z.union([z.literal("root"), z.int().positive()]);

src/lib/server/schemas/client.ts

@@ -1,36 +0,0 @@
-import { z } from "zod";
-
-export const clientListResponse = z.object({
-  clients: z.array(
-    z.object({
-      id: z.number().int().positive(),
-      state: z.enum(["pending", "active"]),
-    }),
-  ),
-});
-export type ClientListResponse = z.output<typeof clientListResponse>;
-
-export const clientRegisterRequest = z.object({
-  encPubKey: z.string().base64().nonempty(),
-  sigPubKey: z.string().base64().nonempty(),
-});
-export type ClientRegisterRequest = z.input<typeof clientRegisterRequest>;
-
-export const clientRegisterResponse = z.object({
-  id: z.number().int().positive(),
-  challenge: z.string().base64().nonempty(),
-});
-export type ClientRegisterResponse = z.output<typeof clientRegisterResponse>;
-
-export const clientRegisterVerifyRequest = z.object({
-  id: z.number().int().positive(),
-  answerSig: z.string().base64().nonempty(),
-});
-export type ClientRegisterVerifyRequest = z.input<typeof clientRegisterVerifyRequest>;
-
-export const clientStatusResponse = z.object({
-  id: z.number().int().positive(),
-  state: z.enum(["pending", "active"]),
-  isInitialMekNeeded: z.boolean(),
-});
-export type ClientStatusResponse = z.output<typeof clientStatusResponse>;

src/lib/server/schemas/directory.ts

@@ -1,41 +1,3 @@
 import { z } from "zod";
 
-export const directoryIdSchema = z.union([z.literal("root"), z.number().int().positive()]);
-
-export const directoryInfoResponse = z.object({
-  metadata: z
-    .object({
-      parent: directoryIdSchema,
-      mekVersion: z.number().int().positive(),
-      dek: z.string().base64().nonempty(),
-      dekVersion: z.string().datetime(),
-      name: z.string().base64().nonempty(),
-      nameIv: z.string().base64().nonempty(),
-    })
-    .optional(),
-  subDirectories: z.number().int().positive().array(),
-  files: z.number().int().positive().array(),
-});
-export type DirectoryInfoResponse = z.output<typeof directoryInfoResponse>;
-
-export const directoryDeleteResponse = z.object({
-  deletedFiles: z.number().int().positive().array(),
-});
-export type DirectoryDeleteResponse = z.output<typeof directoryDeleteResponse>;
-
-export const directoryRenameRequest = z.object({
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type DirectoryRenameRequest = z.input<typeof directoryRenameRequest>;
-
-export const directoryCreateRequest = z.object({
-  parent: directoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type DirectoryCreateRequest = z.input<typeof directoryCreateRequest>;
+export const directoryIdSchema = z.union([z.literal("root"), z.int().positive()]);

src/lib/server/schemas/file.ts

@@ -2,90 +2,35 @@ import mime from "mime";
 import { z } from "zod";
 import { directoryIdSchema } from "./directory";
 
-export const fileInfoResponse = z.object({
-  parent: directoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  contentType: z
-    .string()
-    .trim()
-    .nonempty()
-    .refine((value) => mime.getExtension(value) !== null), // MIME type
-  contentIv: z.string().base64().nonempty(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-  createdAt: z.string().base64().nonempty().optional(),
-  createdAtIv: z.string().base64().nonempty().optional(),
-  lastModifiedAt: z.string().base64().nonempty(),
-  lastModifiedAtIv: z.string().base64().nonempty(),
-  categories: z.number().int().positive().array(),
-});
-export type FileInfoResponse = z.output<typeof fileInfoResponse>;
-
-export const fileRenameRequest = z.object({
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type FileRenameRequest = z.input<typeof fileRenameRequest>;
-
-export const fileThumbnailInfoResponse = z.object({
-  updatedAt: z.string().datetime(),
-  contentIv: z.string().base64().nonempty(),
-});
-export type FileThumbnailInfoResponse = z.output<typeof fileThumbnailInfoResponse>;
-
 export const fileThumbnailUploadRequest = z.object({
-  dekVersion: z.string().datetime(),
-  contentIv: z.string().base64().nonempty(),
+  dekVersion: z.iso.datetime(),
+  contentIv: z.base64().nonempty(),
 });
 export type FileThumbnailUploadRequest = z.input<typeof fileThumbnailUploadRequest>;
 
-export const fileListResponse = z.object({
-  files: z.number().int().positive().array(),
-});
-export type FileListResponse = z.output<typeof fileListResponse>;
-
-export const duplicateFileScanRequest = z.object({
-  hskVersion: z.number().int().positive(),
-  contentHmac: z.string().base64().nonempty(),
-});
-export type DuplicateFileScanRequest = z.input<typeof duplicateFileScanRequest>;
-
-export const duplicateFileScanResponse = z.object({
-  files: z.number().int().positive().array(),
-});
-export type DuplicateFileScanResponse = z.output<typeof duplicateFileScanResponse>;
-
-export const missingThumbnailFileScanResponse = z.object({
-  files: z.number().int().positive().array(),
-});
-export type MissingThumbnailFileScanResponse = z.output<typeof missingThumbnailFileScanResponse>;
-
 export const fileUploadRequest = z.object({
   parent: directoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  hskVersion: z.number().int().positive(),
-  contentHmac: z.string().base64().nonempty(),
+  mekVersion: z.int().positive(),
+  dek: z.base64().nonempty(),
+  dekVersion: z.iso.datetime(),
+  hskVersion: z.int().positive(),
+  contentHmac: z.base64().nonempty(),
   contentType: z
     .string()
     .trim()
     .nonempty()
     .refine((value) => mime.getExtension(value) !== null), // MIME type
-  contentIv: z.string().base64().nonempty(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-  createdAt: z.string().base64().nonempty().optional(),
-  createdAtIv: z.string().base64().nonempty().optional(),
-  lastModifiedAt: z.string().base64().nonempty(),
-  lastModifiedAtIv: z.string().base64().nonempty(),
+  contentIv: z.base64().nonempty(),
+  name: z.base64().nonempty(),
+  nameIv: z.base64().nonempty(),
+  createdAt: z.base64().nonempty().optional(),
+  createdAtIv: z.base64().nonempty().optional(),
+  lastModifiedAt: z.base64().nonempty(),
+  lastModifiedAtIv: z.base64().nonempty(),
 });
 export type FileUploadRequest = z.input<typeof fileUploadRequest>;
 
 export const fileUploadResponse = z.object({
-  file: z.number().int().positive(),
+  file: z.int().positive(),
 });
 export type FileUploadResponse = z.output<typeof fileUploadResponse>;

src/lib/server/schemas/hsk.ts

@@ -1,19 +0,0 @@
-import { z } from "zod";
-
-export const hmacSecretListResponse = z.object({
-  hsks: z.array(
-    z.object({
-      version: z.number().int().positive(),
-      state: z.enum(["active"]),
-      mekVersion: z.number().int().positive(),
-      hsk: z.string().base64().nonempty(),
-    }),
-  ),
-});
-export type HmacSecretListResponse = z.output<typeof hmacSecretListResponse>;
-
-export const initialHmacSecretRegisterRequest = z.object({
-  mekVersion: z.number().int().positive(),
-  hsk: z.string().base64().nonempty(),
-});
-export type InitialHmacSecretRegisterRequest = z.input<typeof initialHmacSecretRegisterRequest>;

src/lib/server/schemas/index.ts

@@ -1,8 +1,3 @@
-export * from "./auth";
 export * from "./category";
-export * from "./client";
 export * from "./directory";
 export * from "./file";
-export * from "./hsk";
-export * from "./mek";
-export * from "./user";

src/lib/server/schemas/mek.ts

@@ -1,19 +0,0 @@
-import { z } from "zod";
-
-export const masterKeyListResponse = z.object({
-  meks: z.array(
-    z.object({
-      version: z.number().int().positive(),
-      state: z.enum(["active", "retired"]),
-      mek: z.string().base64().nonempty(),
-      mekSig: z.string().base64().nonempty(),
-    }),
-  ),
-});
-export type MasterKeyListResponse = z.output<typeof masterKeyListResponse>;
-
-export const initialMasterKeyRegisterRequest = z.object({
-  mek: z.string().base64().nonempty(),
-  mekSig: z.string().base64().nonempty(),
-});
-export type InitialMasterKeyRegisterRequest = z.input<typeof initialMasterKeyRegisterRequest>;

src/lib/server/schemas/user.ts

@@ -1,12 +0,0 @@
-import { z } from "zod";
-
-export const userInfoResponse = z.object({
-  email: z.string().email(),
-  nickname: z.string().nonempty(),
-});
-export type UserInfoResponse = z.output<typeof userInfoResponse>;
-
-export const nicknameChangeRequest = z.object({
-  newNickname: z.string().trim().min(2).max(8),
-});
-export type NicknameChangeRequest = z.input<typeof nicknameChangeRequest>;

src/lib/server/services/auth.ts

@@ -1,122 +0,0 @@
-import { error } from "@sveltejs/kit";
-import argon2 from "argon2";
-import { getClient, getClientByPubKeys, getUserClient } from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  upgradeSession,
-  deleteSession,
-  deleteAllOtherSessions,
-  registerSessionUpgradeChallenge,
-  consumeSessionUpgradeChallenge,
-} from "$lib/server/db/session";
-import { getUser, getUserByEmail, setUserPassword } from "$lib/server/db/user";
-import env from "$lib/server/loadenv";
-import { startSession } from "$lib/server/modules/auth";
-import { verifySignature, generateChallenge } from "$lib/server/modules/crypto";
-
-const hashPassword = async (password: string) => {
-  return await argon2.hash(password);
-};
-
-const verifyPassword = async (hash: string, password: string) => {
-  return await argon2.verify(hash, password);
-};
-
-export const changePassword = async (
-  userId: number,
-  sessionId: string,
-  oldPassword: string,
-  newPassword: string,
-) => {
-  if (oldPassword === newPassword) {
-    error(400, "Same passwords");
-  } else if (newPassword.length < 8) {
-    error(400, "Too short password");
-  }
-
-  const user = await getUser(userId);
-  if (!user) {
-    error(500, "Invalid session id");
-  } else if (!(await verifyPassword(user.password, oldPassword))) {
-    error(403, "Invalid password");
-  }
-
-  await setUserPassword(userId, await hashPassword(newPassword));
-  await deleteAllOtherSessions(userId, sessionId);
-};
-
-export const login = async (email: string, password: string, ip: string, userAgent: string) => {
-  const user = await getUserByEmail(email);
-  if (!user || !(await verifyPassword(user.password, password))) {
-    error(401, "Invalid email or password");
-  }
-
-  return { sessionIdSigned: await startSession(user.id, ip, userAgent) };
-};
-
-export const logout = async (sessionId: string) => {
-  await deleteSession(sessionId);
-};
-
-export const createSessionUpgradeChallenge = async (
-  sessionId: string,
-  userId: number,
-  ip: string,
-  encPubKey: string,
-  sigPubKey: string,
-) => {
-  const client = await getClientByPubKeys(encPubKey, sigPubKey);
-  const userClient = client ? await getUserClient(userId, client.id) : undefined;
-  if (!client) {
-    error(401, "Invalid public key(s)");
-  } else if (!userClient || userClient.state === "challenging") {
-    error(403, "Unregistered client");
-  }
-
-  const { answer, challenge } = await generateChallenge(32, encPubKey);
-  const { id } = await registerSessionUpgradeChallenge(
-    sessionId,
-    client.id,
-    answer.toString("base64"),
-    ip,
-    new Date(Date.now() + env.challenge.sessionUpgradeExp),
-  );
-
-  return { id, challenge: challenge.toString("base64") };
-};
-
-export const verifySessionUpgradeChallenge = async (
-  sessionId: string,
-  userId: number,
-  ip: string,
-  challengeId: number,
-  answerSig: string,
-  force: boolean,
-) => {
-  const challenge = await consumeSessionUpgradeChallenge(challengeId, sessionId, ip);
-  if (!challenge) {
-    error(403, "Invalid challenge answer");
-  }
-
-  const client = await getClient(challenge.clientId);
-  if (!client) {
-    error(500, "Invalid challenge answer");
-  } else if (
-    !verifySignature(Buffer.from(challenge.answer, "base64"), answerSig, client.sigPubKey)
-  ) {
-    error(403, "Invalid challenge answer signature");
-  }
-
-  try {
-    await upgradeSession(userId, sessionId, client.id, force);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "Session not found") {
-        error(500, "Invalid challenge answer");
-      } else if (!force && e.message === "Session already exists") {
-        error(409, "Already logged in");
-      }
-    }
-    throw e;
-  }
-};

src/lib/server/services/category.ts

@@ -1,133 +0,0 @@
-import { error } from "@sveltejs/kit";
-import {
-  registerCategory,
-  getAllCategoriesByParent,
-  getCategory,
-  setCategoryEncName,
-  unregisterCategory,
-  type CategoryId,
-  type NewCategory,
-} from "$lib/server/db/category";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  getAllFilesByCategory,
-  getFile,
-  addFileToCategory,
-  removeFileFromCategory,
-} from "$lib/server/db/file";
-import type { Ciphertext } from "$lib/server/db/schema";
-
-export const getCategoryInformation = async (userId: number, categoryId: CategoryId) => {
-  const category = categoryId !== "root" ? await getCategory(userId, categoryId) : undefined;
-  if (category === null) {
-    error(404, "Invalid category id");
-  }
-
-  const categories = await getAllCategoriesByParent(userId, categoryId);
-  return {
-    metadata: category && {
-      parentId: category.parentId ?? ("root" as const),
-      mekVersion: category.mekVersion,
-      encDek: category.encDek,
-      dekVersion: category.dekVersion,
-      encName: category.encName,
-    },
-    categories: categories.map(({ id }) => id),
-  };
-};
-
-export const deleteCategory = async (userId: number, categoryId: number) => {
-  try {
-    await unregisterCategory(userId, categoryId);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Category not found") {
-      error(404, "Invalid category id");
-    }
-    throw e;
-  }
-};
-
-export const addCategoryFile = async (userId: number, categoryId: number, fileId: number) => {
-  const category = await getCategory(userId, categoryId);
-  const file = await getFile(userId, fileId);
-  if (!category) {
-    error(404, "Invalid category id");
-  } else if (!file) {
-    error(404, "Invalid file id");
-  }
-
-  try {
-    await addFileToCategory(fileId, categoryId);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "File already added to category") {
-      error(400, "File already added");
-    }
-    throw e;
-  }
-};
-
-export const getCategoryFiles = async (userId: number, categoryId: number, recurse: boolean) => {
-  const category = await getCategory(userId, categoryId);
-  if (!category) {
-    error(404, "Invalid category id");
-  }
-
-  const files = await getAllFilesByCategory(userId, categoryId, recurse);
-  return { files };
-};
-
-export const removeCategoryFile = async (userId: number, categoryId: number, fileId: number) => {
-  const category = await getCategory(userId, categoryId);
-  const file = await getFile(userId, fileId);
-  if (!category) {
-    error(404, "Invalid category id");
-  } else if (!file) {
-    error(404, "Invalid file id");
-  }
-
-  try {
-    await removeFileFromCategory(fileId, categoryId);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "File not found in category") {
-      error(400, "File not added");
-    }
-    throw e;
-  }
-};
-
-export const renameCategory = async (
-  userId: number,
-  categoryId: number,
-  dekVersion: Date,
-  newEncName: Ciphertext,
-) => {
-  try {
-    await setCategoryEncName(userId, categoryId, dekVersion, newEncName);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "Category not found") {
-        error(404, "Invalid category id");
-      } else if (e.message === "Invalid DEK version") {
-        error(400, "Invalid DEK version");
-      }
-    }
-    throw e;
-  }
-};
-
-export const createCategory = async (params: NewCategory) => {
-  const oneMinuteAgo = new Date(Date.now() - 60 * 1000);
-  const oneMinuteLater = new Date(Date.now() + 60 * 1000);
-  if (params.dekVersion <= oneMinuteAgo || params.dekVersion >= oneMinuteLater) {
-    error(400, "Invalid DEK version");
-  }
-
-  try {
-    await registerCategory(params);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Inactive MEK version") {
-      error(400, "Inactive MEK version");
-    }
-    throw e;
-  }
-};

src/lib/server/services/client.ts

@@ -1,116 +0,0 @@
-import { error } from "@sveltejs/kit";
-import {
-  createClient,
-  getClient,
-  getClientByPubKeys,
-  createUserClient,
-  getAllUserClients,
-  getUserClient,
-  setUserClientStateToPending,
-  registerUserClientChallenge,
-  consumeUserClientChallenge,
-} from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import { verifyPubKey, verifySignature, generateChallenge } from "$lib/server/modules/crypto";
-import { isInitialMekNeeded } from "$lib/server/modules/mek";
-import env from "$lib/server/loadenv";
-
-export const getUserClientList = async (userId: number) => {
-  const userClients = await getAllUserClients(userId);
-  return {
-    userClients: userClients.map(({ clientId, state }) => ({
-      id: clientId,
-      state: state as "pending" | "active",
-    })),
-  };
-};
-
-const expiresAt = () => new Date(Date.now() + env.challenge.userClientExp);
-
-const createUserClientChallenge = async (
-  ip: string,
-  userId: number,
-  clientId: number,
-  encPubKey: string,
-) => {
-  const { answer, challenge } = await generateChallenge(32, encPubKey);
-  const { id } = await registerUserClientChallenge(
-    userId,
-    clientId,
-    answer.toString("base64"),
-    ip,
-    expiresAt(),
-  );
-  return { id, challenge: challenge.toString("base64") };
-};
-
-export const registerUserClient = async (
-  userId: number,
-  ip: string,
-  encPubKey: string,
-  sigPubKey: string,
-) => {
-  const client = await getClientByPubKeys(encPubKey, sigPubKey);
-  if (client) {
-    try {
-      await createUserClient(userId, client.id);
-      return await createUserClientChallenge(ip, userId, client.id, encPubKey);
-    } catch (e) {
-      if (e instanceof IntegrityError && e.message === "User client already exists") {
-        error(409, "Client already registered");
-      }
-      throw e;
-    }
-  } else {
-    if (encPubKey === sigPubKey) {
-      error(400, "Same public keys");
-    } else if (!verifyPubKey(encPubKey) || !verifyPubKey(sigPubKey)) {
-      error(400, "Invalid public key(s)");
-    }
-
-    try {
-      const { id: clientId } = await createClient(encPubKey, sigPubKey, userId);
-      return await createUserClientChallenge(ip, userId, clientId, encPubKey);
-    } catch (e) {
-      if (e instanceof IntegrityError && e.message === "Public key(s) already registered") {
-        error(409, "Public key(s) already used");
-      }
-      throw e;
-    }
-  }
-};
-
-export const verifyUserClient = async (
-  userId: number,
-  ip: string,
-  challengeId: number,
-  answerSig: string,
-) => {
-  const challenge = await consumeUserClientChallenge(challengeId, userId, ip);
-  if (!challenge) {
-    error(403, "Invalid challenge answer");
-  }
-
-  const client = await getClient(challenge.clientId);
-  if (!client) {
-    error(500, "Invalid challenge answer");
-  } else if (
-    !verifySignature(Buffer.from(challenge.answer, "base64"), answerSig, client.sigPubKey)
-  ) {
-    error(403, "Invalid challenge answer signature");
-  }
-
-  await setUserClientStateToPending(userId, client.id);
-};
-
-export const getUserClientStatus = async (userId: number, clientId: number) => {
-  const userClient = await getUserClient(userId, clientId);
-  if (!userClient) {
-    error(500, "Invalid session id");
-  }
-
-  return {
-    state: userClient.state as "pending" | "active",
-    isInitialMekNeeded: await isInitialMekNeeded(userId),
-  };
-};

src/lib/server/services/directory.ts

@@ -1,96 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { unlink } from "fs/promises";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  registerDirectory,
-  getAllDirectoriesByParent,
-  getDirectory,
-  setDirectoryEncName,
-  unregisterDirectory,
-  getAllFilesByParent,
-  type DirectoryId,
-  type NewDirectory,
-} from "$lib/server/db/file";
-import type { Ciphertext } from "$lib/server/db/schema";
-
-export const getDirectoryInformation = async (userId: number, directoryId: DirectoryId) => {
-  const directory = directoryId !== "root" ? await getDirectory(userId, directoryId) : undefined;
-  if (directory === null) {
-    error(404, "Invalid directory id");
-  }
-
-  const directories = await getAllDirectoriesByParent(userId, directoryId);
-  const files = await getAllFilesByParent(userId, directoryId);
-  return {
-    metadata: directory && {
-      parentId: directory.parentId ?? ("root" as const),
-      mekVersion: directory.mekVersion,
-      encDek: directory.encDek,
-      dekVersion: directory.dekVersion,
-      encName: directory.encName,
-    },
-    directories: directories.map(({ id }) => id),
-    files: files.map(({ id }) => id),
-  };
-};
-
-const safeUnlink = async (path: string | null) => {
-  if (path) {
-    await unlink(path).catch(console.error);
-  }
-};
-
-export const deleteDirectory = async (userId: number, directoryId: number) => {
-  try {
-    const files = await unregisterDirectory(userId, directoryId);
-    return {
-      files: files.map(({ id, path, thumbnailPath }) => {
-        safeUnlink(path); // Intended
-        safeUnlink(thumbnailPath); // Intended
-        return id;
-      }),
-    };
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Directory not found") {
-      error(404, "Invalid directory id");
-    }
-    throw e;
-  }
-};
-
-export const renameDirectory = async (
-  userId: number,
-  directoryId: number,
-  dekVersion: Date,
-  newEncName: Ciphertext,
-) => {
-  try {
-    await setDirectoryEncName(userId, directoryId, dekVersion, newEncName);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "Directory not found") {
-        error(404, "Invalid directory id");
-      } else if (e.message === "Invalid DEK version") {
-        error(400, "Invalid DEK version");
-      }
-    }
-    throw e;
-  }
-};
-
-export const createDirectory = async (params: NewDirectory) => {
-  const oneMinuteAgo = new Date(Date.now() - 60 * 1000);
-  const oneMinuteLater = new Date(Date.now() + 60 * 1000);
-  if (params.dekVersion <= oneMinuteAgo || params.dekVersion >= oneMinuteLater) {
-    error(400, "Invalid DEK version");
-  }
-
-  try {
-    await registerDirectory(params);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Inactive MEK version") {
-      error(400, "Invalid MEK version");
-    }
-    throw e;
-  }
-};

src/lib/server/services/file.ts

@@ -1,72 +1,17 @@
 import { error } from "@sveltejs/kit";
 import { createHash } from "crypto";
 import { createReadStream, createWriteStream } from "fs";
-import { mkdir, stat, unlink } from "fs/promises";
+import { mkdir, stat } from "fs/promises";
 import { dirname } from "path";
 import { Readable } from "stream";
 import { pipeline } from "stream/promises";
 import { v4 as uuidv4 } from "uuid";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  registerFile,
-  getAllFileIds,
-  getAllFileIdsByContentHmac,
-  getFile,
-  setFileEncName,
-  unregisterFile,
-  getAllFileCategories,
-  type NewFile,
-} from "$lib/server/db/file";
-import {
-  updateFileThumbnail,
-  getFileThumbnail,
-  getMissingFileThumbnails,
-} from "$lib/server/db/media";
-import type { Ciphertext } from "$lib/server/db/schema";
+import { FileRepo, MediaRepo, IntegrityError } from "$lib/server/db";
 import env from "$lib/server/loadenv";
-
-export const getFileInformation = async (userId: number, fileId: number) => {
-  const file = await getFile(userId, fileId);
-  if (!file) {
-    error(404, "Invalid file id");
-  }
-
-  const categories = await getAllFileCategories(fileId);
-  return {
-    parentId: file.parentId ?? ("root" as const),
-    mekVersion: file.mekVersion,
-    encDek: file.encDek,
-    dekVersion: file.dekVersion,
-    contentType: file.contentType,
-    encContentIv: file.encContentIv,
-    encName: file.encName,
-    encCreatedAt: file.encCreatedAt,
-    encLastModifiedAt: file.encLastModifiedAt,
-    categories: categories.map(({ id }) => id),
-  };
-};
-
-const safeUnlink = async (path: string | null) => {
-  if (path) {
-    await unlink(path).catch(console.error);
-  }
-};
-
-export const deleteFile = async (userId: number, fileId: number) => {
-  try {
-    const { path, thumbnailPath } = await unregisterFile(userId, fileId);
-    safeUnlink(path); // Intended
-    safeUnlink(thumbnailPath); // Intended
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "File not found") {
-      error(404, "Invalid file id");
-    }
-    throw e;
-  }
-};
+import { safeUnlink } from "$lib/server/modules/filesystem";
 
 export const getFileStream = async (userId: number, fileId: number) => {
-  const file = await getFile(userId, fileId);
+  const file = await FileRepo.getFile(userId, fileId);
   if (!file) {
     error(404, "Invalid file id");
   }
@@ -78,37 +23,8 @@ export const getFileStream = async (userId: number, fileId: number) => {
   };
 };
 
-export const renameFile = async (
-  userId: number,
-  fileId: number,
-  dekVersion: Date,
-  newEncName: Ciphertext,
-) => {
-  try {
-    await setFileEncName(userId, fileId, dekVersion, newEncName);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "File not found") {
-        error(404, "Invalid file id");
-      } else if (e.message === "Invalid DEK version") {
-        error(400, "Invalid DEK version");
-      }
-    }
-    throw e;
-  }
-};
-
-export const getFileThumbnailInformation = async (userId: number, fileId: number) => {
-  const thumbnail = await getFileThumbnail(userId, fileId);
-  if (!thumbnail) {
-    error(404, "File or its thumbnail not found");
-  }
-
-  return { updatedAt: thumbnail.updatedAt, encContentIv: thumbnail.encContentIv };
-};
-
 export const getFileThumbnailStream = async (userId: number, fileId: number) => {
-  const thumbnail = await getFileThumbnail(userId, fileId);
+  const thumbnail = await MediaRepo.getFileThumbnail(userId, fileId);
   if (!thumbnail) {
     error(404, "File or its thumbnail not found");
   }
@@ -133,7 +49,13 @@ export const uploadFileThumbnail = async (
   try {
     await pipeline(encContentStream, createWriteStream(path, { flags: "wx", mode: 0o600 }));
 
-    const oldPath = await updateFileThumbnail(userId, fileId, dekVersion, path, encContentIv);
+    const oldPath = await MediaRepo.updateFileThumbnail(
+      userId,
+      fileId,
+      dekVersion,
+      path,
+      encContentIv,
+    );
     safeUnlink(oldPath); // Intended
   } catch (e) {
     await safeUnlink(path);
@@ -149,27 +71,8 @@ export const uploadFileThumbnail = async (
   }
 };
 
-export const getFileList = async (userId: number) => {
-  const fileIds = await getAllFileIds(userId);
-  return { files: fileIds };
-};
-
-export const scanDuplicateFiles = async (
-  userId: number,
-  hskVersion: number,
-  contentHmac: string,
-) => {
-  const fileIds = await getAllFileIdsByContentHmac(userId, hskVersion, contentHmac);
-  return { files: fileIds };
-};
-
-export const scanMissingFileThumbnails = async (userId: number) => {
-  const fileIds = await getMissingFileThumbnails(userId);
-  return { files: fileIds };
-};
-
 export const uploadFile = async (
-  params: Omit<NewFile, "path" | "encContentHash">,
+  params: Omit<FileRepo.NewFile, "path" | "encContentHash">,
   encContentStream: Readable,
   encContentHash: Promise<string>,
 ) => {
@@ -201,7 +104,7 @@ export const uploadFile = async (
       throw new Error("Invalid checksum");
     }
 
-    const { id: fileId } = await registerFile({
+    const { id: fileId } = await FileRepo.registerFile({
       ...params,
       path,
       encContentHash: hash,

src/lib/server/services/hsk.ts

@@ -1,31 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { IntegrityError } from "$lib/server/db/error";
-import { registerInitialHsk, getAllValidHsks } from "$lib/server/db/hsk";
-
-export const getHskList = async (userId: number) => {
-  const hsks = await getAllValidHsks(userId);
-  return {
-    encHsks: hsks.map(({ version, state, mekVersion, encHsk }) => ({
-      version,
-      state,
-      mekVersion,
-      encHsk,
-    })),
-  };
-};
-
-export const registerInitialActiveHsk = async (
-  userId: number,
-  createdBy: number,
-  mekVersion: number,
-  encHsk: string,
-) => {
-  try {
-    await registerInitialHsk(userId, createdBy, mekVersion, encHsk);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "HSK already registered") {
-      error(409, "Initial HSK already registered");
-    }
-    throw e;
-  }
-};

src/lib/server/services/mek.ts

@@ -1,38 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { setUserClientStateToActive } from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import { registerInitialMek, getAllValidClientMeks } from "$lib/server/db/mek";
-import { verifyClientEncMekSig } from "$lib/server/modules/mek";
-
-export const getClientMekList = async (userId: number, clientId: number) => {
-  const clientMeks = await getAllValidClientMeks(userId, clientId);
-  return {
-    encMeks: clientMeks.map(({ version, state, encMek, encMekSig }) => ({
-      version,
-      state,
-      encMek,
-      encMekSig,
-    })),
-  };
-};
-
-export const registerInitialActiveMek = async (
-  userId: number,
-  createdBy: number,
-  encMek: string,
-  encMekSig: string,
-) => {
-  if (!(await verifyClientEncMekSig(userId, createdBy, 1, encMek, encMekSig))) {
-    error(400, "Invalid signature");
-  }
-
-  try {
-    await registerInitialMek(userId, createdBy, encMek, encMekSig);
-    await setUserClientStateToActive(userId, createdBy);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "MEK already registered") {
-      error(409, "Initial MEK already registered");
-    }
-    throw e;
-  }
-};

src/lib/server/services/user.ts

@@ -1,15 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { getUser, setUserNickname } from "$lib/server/db/user";
-
-export const getUserInformation = async (userId: number) => {
-  const user = await getUser(userId);
-  if (!user) {
-    error(500, "Invalid session id");
-  }
-
-  return { email: user.email, nickname: user.nickname };
-};
-
-export const changeNickname = async (userId: number, nickname: string) => {
-  await setUserNickname(userId, nickname);
-};

src/lib/services/auth.ts

@@ -1,10 +1,5 @@
-import { callPostApi } from "$lib/hooks";
 import { encodeToBase64, decryptChallenge, signMessageRSA } from "$lib/modules/crypto";
-import type {
-  SessionUpgradeRequest,
-  SessionUpgradeResponse,
-  SessionUpgradeVerifyRequest,
-} from "$lib/server/schemas";
+import { trpc, isTRPCClientError } from "$trpc/client";
 
 export const requestSessionUpgrade = async (
   encryptKeyBase64: string,
@@ -13,27 +8,43 @@ export const requestSessionUpgrade = async (
   signKey: CryptoKey,
   force = false,
 ) => {
-  let res = await callPostApi<SessionUpgradeRequest>("/api/auth/upgradeSession", {
+  let id, challenge;
+  try {
+    ({ id, challenge } = await trpc().auth.upgrade.mutate({
       encPubKey: encryptKeyBase64,
       sigPubKey: verifyKeyBase64,
-  });
-  if (res.status === 403) return [false, "Unregistered client"] as const;
-  else if (!res.ok) return [false] as const;
-
-  const { id, challenge }: SessionUpgradeResponse = await res.json();
+    }));
+  } catch (e) {
+    if (isTRPCClientError(e) && e.data?.code === "FORBIDDEN") {
+      return [false, "Unregistered client"] as const;
+    }
+    return [false] as const;
+  }
   const answer = await decryptChallenge(challenge, decryptKey);
   const answerSig = await signMessageRSA(answer, signKey);
 
-  res = await callPostApi<SessionUpgradeVerifyRequest>("/api/auth/upgradeSession/verify", {
+  try {
+    await trpc().auth.verifyUpgrade.mutate({
       id,
       answerSig: encodeToBase64(answerSig),
       force,
     });
-  if (res.status === 409) return [false, "Already logged in"] as const;
-  else return [res.ok] as const;
+  } catch (e) {
+    if (isTRPCClientError(e) && e.data?.code === "CONFLICT") {
+      return [false, "Already logged in"] as const;
+    }
+    return [false] as const;
+  }
+
+  return [true] as const;
 };
 
 export const requestLogout = async () => {
-  const res = await callPostApi("/api/auth/logout");
-  return res.ok;
+  try {
+    await trpc().auth.logout.mutate();
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/lib/services/category.ts

@@ -1,7 +1,6 @@
-import { callPostApi } from "$lib/hooks";
 import { generateDataKey, wrapDataKey, encryptString } from "$lib/modules/crypto";
-import type { CategoryCreateRequest, CategoryFileRemoveRequest } from "$lib/server/schemas";
 import type { MasterKey } from "$lib/stores";
+import { trpc } from "$trpc/client";
 
 export const requestCategoryCreation = async (
   name: string,
@@ -11,21 +10,28 @@ export const requestCategoryCreation = async (
   const { dataKey, dataKeyVersion } = await generateDataKey();
   const nameEncrypted = await encryptString(name, dataKey);
 
-  const res = await callPostApi<CategoryCreateRequest>("/api/category/create", {
+  try {
+    await trpc().category.create.mutate({
       parent: parentId,
       mekVersion: masterKey.version,
       dek: await wrapDataKey(dataKey, masterKey.key),
-    dekVersion: dataKeyVersion.toISOString(),
+      dekVersion: dataKeyVersion,
       name: nameEncrypted.ciphertext,
       nameIv: nameEncrypted.iv,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestFileRemovalFromCategory = async (fileId: number, categoryId: number) => {
-  const res = await callPostApi<CategoryFileRemoveRequest>(
-    `/api/category/${categoryId}/file/remove`,
-    { file: fileId },
-  );
-  return res.ok;
+  try {
+    await trpc().category.removeFile.mutate({ id: categoryId, file: fileId });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/lib/services/file.ts

@@ -1,4 +1,3 @@
-import { callGetApi } from "$lib/hooks";
 import { getAllFileInfos } from "$lib/indexedDB/filesystem";
 import { decryptData } from "$lib/modules/crypto";
 import {
@@ -11,11 +10,8 @@ import {
   downloadFile,
 } from "$lib/modules/file";
 import { getThumbnailUrl } from "$lib/modules/thumbnail";
-import type {
-  FileThumbnailInfoResponse,
-  FileThumbnailUploadRequest,
-  FileListResponse,
-} from "$lib/server/schemas";
+import type { FileThumbnailUploadRequest } from "$lib/server/schemas";
+import { trpc } from "$trpc/client";
 
 export const requestFileDownload = async (
   fileId: number,
@@ -48,16 +44,20 @@ export const requestFileThumbnailUpload = async (
   return await fetch(`/api/file/${fileId}/thumbnail/upload`, { method: "POST", body: form });
 };
 
-export const requestFileThumbnailDownload = async (fileId: number, dataKey: CryptoKey) => {
+export const requestFileThumbnailDownload = async (fileId: number, dataKey?: CryptoKey) => {
   const cache = await getFileThumbnailCache(fileId);
-  if (cache) return cache;
+  if (cache || !dataKey) return cache;
 
-  let res = await callGetApi(`/api/file/${fileId}/thumbnail`);
-  if (!res.ok) return null;
+  let thumbnailInfo;
+  try {
+    thumbnailInfo = await trpc().file.thumbnail.query({ id: fileId });
+  } catch {
+    // TODO: Error Handling
+    return null;
+  }
+  const { contentIv: thumbnailEncryptedIv } = thumbnailInfo;
 
-  const { contentIv: thumbnailEncryptedIv }: FileThumbnailInfoResponse = await res.json();
-
-  res = await callGetApi(`/api/file/${fileId}/thumbnail/download`);
+  const res = await fetch(`/api/file/${fileId}/thumbnail/download`);
   if (!res.ok) return null;
 
   const thumbnailEncrypted = await res.arrayBuffer();
@@ -68,10 +68,14 @@ export const requestFileThumbnailDownload = async (fileId: number, dataKey: Cryp
 };
 
 export const requestDeletedFilesCleanup = async () => {
-  const res = await callGetApi("/api/file/list");
-  if (!res.ok) return;
+  let liveFiles;
+  try {
+    liveFiles = await trpc().file.list.query();
+  } catch {
+    // TODO: Error Handling
+    return;
+  }
 
-  const { files: liveFiles }: FileListResponse = await res.json();
   const liveFilesSet = new Set(liveFiles);
   const maybeCachedFiles = await getAllFileInfos();
 

src/lib/services/key.ts

@@ -1,4 +1,3 @@
-import { callGetApi, callPostApi } from "$lib/hooks";
 import { storeMasterKeys } from "$lib/indexedDB";
 import {
   encodeToBase64,
@@ -9,16 +8,9 @@ import {
   signMasterKeyWrapped,
   verifyMasterKeyWrapped,
 } from "$lib/modules/crypto";
-import type {
-  ClientRegisterRequest,
-  ClientRegisterResponse,
-  ClientRegisterVerifyRequest,
-  InitialHmacSecretRegisterRequest,
-  MasterKeyListResponse,
-  InitialMasterKeyRegisterRequest,
-} from "$lib/server/schemas";
 import { requestSessionUpgrade } from "$lib/services/auth";
 import { masterKeyStore, type ClientKeys } from "$lib/stores";
+import { trpc, isTRPCClientError } from "$trpc/client";
 
 export const requestClientRegistration = async (
   encryptKeyBase64: string,
@@ -26,21 +18,22 @@ export const requestClientRegistration = async (
   verifyKeyBase64: string,
   signKey: CryptoKey,
 ) => {
-  let res = await callPostApi<ClientRegisterRequest>("/api/client/register", {
+  try {
+    const { id, challenge } = await trpc().client.register.mutate({
       encPubKey: encryptKeyBase64,
       sigPubKey: verifyKeyBase64,
     });
-  if (!res.ok) return false;
-
-  const { id, challenge }: ClientRegisterResponse = await res.json();
     const answer = await decryptChallenge(challenge, decryptKey);
     const answerSig = await signMessageRSA(answer, signKey);
-
-  res = await callPostApi<ClientRegisterVerifyRequest>("/api/client/register/verify", {
+    await trpc().client.verify.mutate({
       id,
       answerSig: encodeToBase64(answerSig),
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestClientRegistrationAndSessionUpgrade = async (
@@ -73,10 +66,14 @@ export const requestClientRegistrationAndSessionUpgrade = async (
 };
 
 export const requestMasterKeyDownload = async (decryptKey: CryptoKey, verifyKey: CryptoKey) => {
-  const res = await callGetApi("/api/mek/list");
-  if (!res.ok) return false;
+  let masterKeysWrapped;
+  try {
+    masterKeysWrapped = await trpc().mek.list.query();
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 
-  const { meks: masterKeysWrapped }: MasterKeyListResponse = await res.json();
   const masterKeys = await Promise.all(
     masterKeysWrapped.map(
       async ({ version, state, mek: masterKeyWrapped, mekSig: masterKeyWrappedSig }) => {
@@ -108,17 +105,27 @@ export const requestInitialMasterKeyAndHmacSecretRegistration = async (
   hmacSecretWrapped: string,
   signKey: CryptoKey,
 ) => {
-  let res = await callPostApi<InitialMasterKeyRegisterRequest>("/api/mek/register/initial", {
+  try {
+    await trpc().mek.registerInitial.mutate({
       mek: masterKeyWrapped,
       mekSig: await signMasterKeyWrapped(masterKeyWrapped, 1, signKey),
     });
-  if (!res.ok) {
-    return res.status === 403 || res.status === 409;
+  } catch (e) {
+    if (isTRPCClientError(e) && (e.data?.code === "FORBIDDEN" || e.data?.code === "CONFLICT")) {
+      return true;
+    }
+    // TODO: Error Handling
+    return false;
   }
 
-  res = await callPostApi<InitialHmacSecretRegisterRequest>("/api/hsk/register/initial", {
+  try {
+    await trpc().hsk.registerInitial.mutate({
       mekVersion: 1,
       hsk: hmacSecretWrapped,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/lib/stores/file.ts

@@ -1,21 +1,5 @@
 import { writable, type Writable } from "svelte/store";
 
-export interface FileUploadStatus {
-  name: string;
-  parentId: "root" | number;
-  status:
-    | "encryption-pending"
-    | "encrypting"
-    | "upload-pending"
-    | "uploading"
-    | "uploaded"
-    | "canceled"
-    | "error";
-  progress?: number;
-  rate?: number;
-  estimated?: number;
-}
-
 export interface FileDownloadStatus {
   id: number;
   status:
@@ -32,16 +16,8 @@ export interface FileDownloadStatus {
   result?: ArrayBuffer;
 }
 
-export const fileUploadStatusStore = writable<Writable<FileUploadStatus>[]>([]);
-
 export const fileDownloadStatusStore = writable<Writable<FileDownloadStatus>[]>([]);
 
-export const isFileUploading = (
-  status: FileUploadStatus["status"],
-): status is "encryption-pending" | "encrypting" | "upload-pending" | "uploading" => {
-  return ["encryption-pending", "encrypting", "upload-pending", "uploading"].includes(status);
-};
-
 export const isFileDownloading = (
   status: FileDownloadStatus["status"],
 ): status is "download-pending" | "downloading" | "decryption-pending" | "decrypting" => {

src/lib/types/filesystem.d.ts

@@ -0,0 +1,2 @@
+type DirectoryId = "root" | number;
+type CategoryId = "root" | number;

src/lib/utils/format.ts

@@ -7,6 +7,13 @@ export const formatDate = (date: Date) => {
   return `${year}. ${month}. ${day}.`;
 };
 
+export const formatDateSortable = (date: Date) => {
+  const year = date.getFullYear();
+  const month = pad2(date.getMonth() + 1);
+  const day = pad2(date.getDate());
+  return `${year}${month}${day}`;
+};
+
 export const formatDateTime = (date: Date) => {
   const dateFormatted = formatDate(date);
   const hours = date.getHours();
@@ -32,32 +39,3 @@ export const truncateString = (str: string, maxLength = 20) => {
   if (str.length <= maxLength) return str;
   return `${str.slice(0, maxLength)}...`;
 };
-
-export enum SortBy {
-  NAME_ASC,
-  NAME_DESC,
-}
-
-type SortFunc = (a?: string, b?: string) => number;
-
-const collator = new Intl.Collator(undefined, { numeric: true, sensitivity: "base" });
-
-const sortByNameAsc: SortFunc = (a, b) => {
-  if (a && b) return collator.compare(a, b);
-  if (a) return -1;
-  if (b) return 1;
-  return 0;
-};
-
-const sortByNameDesc: SortFunc = (a, b) => -sortByNameAsc(a, b);
-
-export const sortEntries = <T extends { name?: string }>(entries: T[], sortBy: SortBy) => {
-  let sortFunc: SortFunc;
-  if (sortBy === SortBy.NAME_ASC) {
-    sortFunc = sortByNameAsc;
-  } else {
-    sortFunc = sortByNameDesc;
-  }
-
-  entries.sort((a, b) => sortFunc(a.name, b.name));
-};

src/lib/utils/index.ts

@@ -0,0 +1,4 @@
+export * from "./format";
+export * from "./gotoStateful";
+export * from "./promise";
+export * from "./sort";

src/lib/utils/promise.ts

@@ -0,0 +1,16 @@
+export const monotonicResolve = <T>(
+  promises: (Promise<T | undefined> | false)[],
+  callback: (value: T) => void,
+) => {
+  let latestResolvedIndex = -1;
+
+  promises.forEach((promise, index) => {
+    if (!promise) return;
+    promise.then((value) => {
+      if (value !== undefined && index > latestResolvedIndex) {
+        latestResolvedIndex = index;
+        callback(value);
+      }
+    });
+  });
+};

src/lib/utils/sort.ts

@@ -0,0 +1,58 @@
+interface SortEntry {
+  name?: string;
+  date?: Date;
+}
+
+export enum SortBy {
+  NAME_ASC,
+  NAME_DESC,
+  DATE_ASC,
+  DATE_DESC,
+}
+
+type SortFunc = (a: SortEntry, b: SortEntry) => number;
+
+const collator = new Intl.Collator(undefined, { numeric: true, sensitivity: "base" });
+
+const sortByNameAsc: SortFunc = ({ name: a }, { name: b }) => {
+  if (a && b) return collator.compare(a, b);
+  if (a) return -1;
+  if (b) return 1;
+  return 0;
+};
+
+const sortByNameDesc: SortFunc = (a, b) => -sortByNameAsc(a, b);
+
+const sortByDateAsc: SortFunc = ({ date: a }, { date: b }) => {
+  if (a && b) return a.getTime() - b.getTime();
+  if (a) return -1;
+  if (b) return 1;
+  return 0;
+};
+
+const sortByDateDesc: SortFunc = (a, b) => -sortByDateAsc(a, b);
+
+export const sortEntries = <T extends SortEntry>(entries: T[], sortBy = SortBy.NAME_ASC) => {
+  let sortFunc: SortFunc;
+
+  switch (sortBy) {
+    case SortBy.NAME_ASC:
+      sortFunc = sortByNameAsc;
+      break;
+    case SortBy.NAME_DESC:
+      sortFunc = sortByNameDesc;
+      break;
+    case SortBy.DATE_ASC:
+      sortFunc = sortByDateAsc;
+      break;
+    case SortBy.DATE_DESC:
+      sortFunc = sortByDateDesc;
+      break;
+    default:
+      const exhaustive: never = sortBy;
+      sortFunc = exhaustive;
+  }
+
+  entries.sort(sortFunc);
+  return entries;
+};

src/routes/(fullscreen)/auth/changePassword/service.ts

@@ -1,10 +1,11 @@
-import { callPostApi } from "$lib/hooks";
-import type { PasswordChangeRequest } from "$lib/server/schemas";
+import { trpc } from "$trpc/client";
 
 export const requestPasswordChange = async (oldPassword: string, newPassword: string) => {
-  const res = await callPostApi<PasswordChangeRequest>("/api/auth/changePassword", {
-    oldPassword,
-    newPassword,
-  });
-  return res.ok;
+  try {
+    await trpc().auth.changePassword.mutate({ oldPassword, newPassword });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/auth/login/service.ts

@@ -1,5 +1,4 @@
-import { callPostApi } from "$lib/hooks";
-import type { LoginRequest } from "$lib/server/schemas";
+import { trpc } from "$trpc/client";
 
 export { requestLogout } from "$lib/services/auth";
 export { requestDeletedFilesCleanup } from "$lib/services/file";
@@ -9,6 +8,11 @@ export {
 } from "$lib/services/key";
 
 export const requestLogin = async (email: string, password: string) => {
-  const res = await callPostApi<LoginRequest>("/api/auth/login", { email, password });
-  return res.ok;
+  try {
+    await trpc().auth.login.mutate({ email, password });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/file/[id]/+page.svelte

@@ -3,14 +3,10 @@
   import { untrack } from "svelte";
   import { get, type Writable } from "svelte/store";
   import { goto } from "$app/navigation";
+  import { page } from "$app/state";
   import { FullscreenDiv } from "$lib/components/atoms";
   import { Categories, IconEntryButton, TopBar } from "$lib/components/molecules";
-  import {
-    getFileInfo,
-    getCategoryInfo,
-    type FileInfo,
-    type CategoryInfo,
-  } from "$lib/modules/filesystem";
+  import { getFileInfo, type FileInfo } from "$lib/modules/filesystem";
   import { captureVideoThumbnail } from "$lib/modules/thumbnail";
   import { fileDownloadStatusStore, isFileDownloading, masterKeyStore } from "$lib/stores";
   import AddToCategoryBottomSheet from "./AddToCategoryBottomSheet.svelte";
@@ -21,7 +17,9 @@
     requestThumbnailUpload,
     requestFileAdditionToCategory,
   } from "./service";
+  import TopBarMenu from "./TopBarMenu.svelte";
 
+  import IconMoreVert from "~icons/material-symbols/more-vert";
   import IconCamera from "~icons/material-symbols/camera";
   import IconClose from "~icons/material-symbols/close";
   import IconAddCircle from "~icons/material-symbols/add-circle";
@@ -29,8 +27,9 @@
   let { data } = $props();
 
   let info: Writable<FileInfo | null> | undefined = $state();
-  let categories: Writable<CategoryInfo | null>[] = $state([]);
+  // let categories: Writable<CategoryInfo | null>[] = $state([]);
 
+  let isMenuOpen = $state(false);
   let isAddToCategoryBottomSheetOpen = $state(false);
 
   let downloadStatus = $derived(
@@ -42,30 +41,26 @@
 
   let isDownloadRequested = $state(false);
   let viewerType: "image" | "video" | undefined = $state();
+  let fileBlob: Blob | undefined = $state();
   let fileBlobUrl: string | undefined = $state();
-  let heicBlob: Blob | undefined = $state();
   let videoElement: HTMLVideoElement | undefined = $state();
 
   const updateViewer = async (buffer: ArrayBuffer, contentType: string) => {
-    const fileBlob = new Blob([buffer], { type: contentType });
-    if (viewerType) {
+    fileBlob = new Blob([buffer], { type: contentType });
     fileBlobUrl = URL.createObjectURL(fileBlob);
-      heicBlob = contentType === "image/heic" ? fileBlob : undefined;
-    }
     return fileBlob;
   };
 
   const convertHeicToJpeg = async () => {
-    if (!heicBlob) return;
+    if (fileBlob?.type !== "image/heic") return;
 
     URL.revokeObjectURL(fileBlobUrl!);
     fileBlobUrl = undefined;
 
     const { default: heic2any } = await import("heic2any");
     fileBlobUrl = URL.createObjectURL(
-      (await heic2any({ blob: heicBlob, toType: "image/jpeg" })) as Blob,
+      (await heic2any({ blob: fileBlob, toType: "image/jpeg" })) as Blob,
     );
-    heicBlob = undefined;
   };
 
   const updateThumbnail = async (dataKey: CryptoKey, dataKeyVersion: Date) => {
@@ -90,10 +85,10 @@
     viewerType = undefined;
   });
 
-  $effect(() => {
-    categories =
-      $info?.categoryIds.map((id) => getCategoryInfo(id, $masterKeyStore?.get(1)?.key!)) ?? [];
-  });
+  // $effect(() => {
+  //   categories =
+  //     $info?.categoryIds.map((id) => getCategoryInfo(id, $masterKeyStore?.get(1)?.key!)) ?? [];
+  // });
 
   $effect(() => {
     if ($info && $info.dataKey && $info.contentIv) {
@@ -133,7 +128,26 @@
   <title>파일</title>
 </svelte:head>
 
-<TopBar title={$info?.name} />
+<TopBar title={$info?.name}>
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <!-- svelte-ignore a11y_click_events_have_key_events -->
+  <div onclick={(e) => e.stopPropagation()}>
+    <button
+      onclick={() => (isMenuOpen = !isMenuOpen)}
+      class="w-[2.3rem] flex-shrink-0 rounded-full p-1 active:bg-black active:bg-opacity-[0.04]"
+    >
+      <IconMoreVert class="text-2xl" />
+    </button>
+    <TopBarMenu
+      bind:isOpen={isMenuOpen}
+      directoryId={["category", "gallery"].includes(page.url.searchParams.get("from") ?? "")
+        ? $info?.parentId
+        : undefined}
+      {fileBlob}
+      filename={$info?.name}
+    />
+  </div>
+</TopBar>
 <FullscreenDiv>
   <div class="space-y-4 pb-4">
     <DownloadStatus status={downloadStatus} />
@@ -171,12 +185,12 @@
     <div class="space-y-2">
       <p class="text-lg font-bold">카테고리</p>
       <div class="space-y-1">
-        <Categories
+        <!-- <Categories
           {categories}
           categoryMenuIcon={IconClose}
           onCategoryClick={({ id }) => goto(`/category/${id}`)}
           onCategoryMenuClick={({ id }) => removeFromCategory(id)}
-        />
+        /> -->
         <IconEntryButton
           icon={IconAddCircle}
           onclick={() => (isAddToCategoryBottomSheetOpen = true)}

src/routes/(fullscreen)/file/[id]/AddToCategoryBottomSheet.svelte

@@ -1,9 +1,8 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
   import { BottomDiv, BottomSheet, Button, FullscreenDiv } from "$lib/components/atoms";
   import { SubCategories } from "$lib/components/molecules";
   import { CategoryCreateModal } from "$lib/components/organisms";
-  import { getCategoryInfo, type CategoryInfo } from "$lib/modules/filesystem";
+  import { getCategoryInfo, type CategoryInfo } from "$lib/modules/filesystem2.svelte";
   import { masterKeyStore } from "$lib/stores";
   import { requestCategoryCreation } from "./service";
 
@@ -14,46 +13,48 @@
 
   let { onAddToCategoryClick, isOpen = $bindable() }: Props = $props();
 
-  let category: Writable<CategoryInfo | null> | undefined = $state();
+  let categoryInfoPromise: Promise<CategoryInfo | null> | undefined = $state();
 
   let isCategoryCreateModalOpen = $state(false);
 
   $effect(() => {
     if (isOpen) {
-      category = getCategoryInfo("root", $masterKeyStore?.get(1)?.key!);
+      categoryInfoPromise = getCategoryInfo("root", $masterKeyStore?.get(1)?.key!);
     }
   });
 </script>
 
-{#if $category}
+{#await categoryInfoPromise then categoryInfo}
+  {#if categoryInfo}
     <BottomSheet bind:isOpen class="flex flex-col">
       <FullscreenDiv>
         <SubCategories
           class="py-4"
-        info={$category}
+          info={categoryInfo}
           onSubCategoryClick={({ id }) =>
-          (category = getCategoryInfo(id, $masterKeyStore?.get(1)?.key!))}
+            (categoryInfoPromise = getCategoryInfo(id, $masterKeyStore?.get(1)?.key!))}
           onSubCategoryCreateClick={() => (isCategoryCreateModalOpen = true)}
           subCategoryCreatePosition="top"
         />
-      {#if $category.id !== "root"}
+        {#if categoryInfo.id !== "root"}
           <BottomDiv>
-          <Button onclick={() => onAddToCategoryClick($category.id)} class="w-full">
+            <Button onclick={() => onAddToCategoryClick(categoryInfo.id)} class="w-full">
               이 카테고리에 추가하기
             </Button>
           </BottomDiv>
         {/if}
       </FullscreenDiv>
     </BottomSheet>
-{/if}
 
     <CategoryCreateModal
       bind:isOpen={isCategoryCreateModalOpen}
       onCreateClick={async (name: string) => {
-    if (await requestCategoryCreation(name, $category!.id, $masterKeyStore?.get(1)!)) {
-      category = getCategoryInfo($category!.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+        if (await requestCategoryCreation(name, categoryInfo.id, $masterKeyStore?.get(1)!)) {
+          categoryInfoPromise = getCategoryInfo(categoryInfo.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
       }}
     />
+  {/if}
+{/await}

src/routes/(fullscreen)/file/[id]/DownloadStatus.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
   import type { Writable } from "svelte/store";
-  import { formatNetworkSpeed } from "$lib/modules/util";
   import { isFileDownloading, type FileDownloadStatus } from "$lib/stores";
+  import { formatNetworkSpeed } from "$lib/utils";
 
   interface Props {
     status?: Writable<FileDownloadStatus>;

src/routes/(fullscreen)/file/[id]/TopBarMenu.svelte

@@ -0,0 +1,59 @@
+<script lang="ts">
+  import FileSaver from "file-saver";
+  import type { Component } from "svelte";
+  import type { SvelteHTMLElements } from "svelte/elements";
+  import { fly } from "svelte/transition";
+  import { goto } from "$app/navigation";
+
+  import IconFolderOpen from "~icons/material-symbols/folder-open";
+  import IconCloudDownload from "~icons/material-symbols/cloud-download";
+
+  interface Props {
+    directoryId?: "root" | number;
+    fileBlob?: Blob;
+    filename?: string;
+    isOpen: boolean;
+  }
+
+  let { directoryId, fileBlob, filename, isOpen = $bindable() }: Props = $props();
+</script>
+
+<svelte:window onclick={() => (isOpen = false)} />
+
+{#if isOpen && (directoryId || fileBlob)}
+  <div
+    class="absolute right-2 top-full z-20 space-y-1 rounded-lg bg-white px-1 py-2 shadow-2xl"
+    transition:fly={{ y: -8, duration: 200 }}
+  >
+    <p class="px-3 pt-2 text-sm font-semibold text-gray-600">더보기</p>
+    <div class="flex flex-col">
+      {#snippet menuButton(
+        Icon: Component<SvelteHTMLElements["svg"]>,
+        text: string,
+        onclick: () => void,
+      )}
+        <button {onclick} class="rounded-xl active:bg-gray-100">
+          <div
+            class="flex items-center gap-x-3 px-3 py-2 text-lg text-gray-700 transition active:scale-95"
+          >
+            <Icon />
+            <p class="font-medium">{text}</p>
+          </div>
+        </button>
+      {/snippet}
+
+      {#if directoryId}
+        {@render menuButton(IconFolderOpen, "폴더에서 보기", () =>
+          goto(
+            directoryId === "root" ? "/directory?from=file" : `/directory/${directoryId}?from=file`,
+          ),
+        )}
+      {/if}
+      {#if fileBlob}
+        {@render menuButton(IconCloudDownload, "다운로드", () => {
+          FileSaver.saveAs(fileBlob, filename);
+        })}
+      {/if}
+    </div>
+  </div>
+{/if}

src/routes/(fullscreen)/file/[id]/service.ts

@@ -1,8 +1,7 @@
-import { callPostApi } from "$lib/hooks";
 import { encryptData } from "$lib/modules/crypto";
 import { storeFileThumbnailCache } from "$lib/modules/file";
-import type { CategoryFileAddRequest } from "$lib/server/schemas";
 import { requestFileThumbnailUpload } from "$lib/services/file";
+import { trpc } from "$trpc/client";
 
 export { requestCategoryCreation, requestFileRemovalFromCategory } from "$lib/services/category";
 export { requestFileDownload } from "$lib/services/file";
@@ -23,8 +22,11 @@ export const requestThumbnailUpload = async (
 };
 
 export const requestFileAdditionToCategory = async (fileId: number, categoryId: number) => {
-  const res = await callPostApi<CategoryFileAddRequest>(`/api/category/${categoryId}/file/add`, {
-    file: fileId,
-  });
-  return res.ok;
+  try {
+    await trpc().category.addFile.mutate({ id: categoryId, file: fileId });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/file/downloads/File.svelte

@@ -1,8 +1,8 @@
 <script lang="ts">
   import { get, type Writable } from "svelte/store";
   import { getFileInfo, type FileInfo } from "$lib/modules/filesystem";
-  import { formatNetworkSpeed } from "$lib/modules/util";
   import { masterKeyStore, type FileDownloadStatus } from "$lib/stores";
+  import { formatNetworkSpeed } from "$lib/utils";
 
   import IconCloud from "~icons/material-symbols/cloud";
   import IconCloudDownload from "~icons/material-symbols/cloud-download";

src/routes/(fullscreen)/file/uploads/+page.svelte

@@ -1,19 +1,10 @@
 <script lang="ts">
-  import { get } from "svelte/store";
   import { FullscreenDiv } from "$lib/components/atoms";
   import { TopBar } from "$lib/components/molecules";
-  import { fileUploadStatusStore, isFileUploading } from "$lib/stores";
+  import { getUploadingFiles, clearUploadedFiles } from "$lib/modules/file";
   import File from "./File.svelte";
 
-  let uploadingFiles = $derived(
-    $fileUploadStatusStore.filter((status) => isFileUploading(get(status).status)),
-  );
-
-  $effect(() => () => {
-    $fileUploadStatusStore = $fileUploadStatusStore.filter((status) =>
-      isFileUploading(get(status).status),
-    );
-  });
+  $effect(() => clearUploadedFiles);
 </script>
 
 <svelte:head>
@@ -23,8 +14,8 @@
 <TopBar />
 <FullscreenDiv>
   <div class="space-y-2 pb-4">
-    {#each uploadingFiles as status}
-      <File {status} />
+    {#each getUploadingFiles() as file}
+      <File state={file} />
     {/each}
   </div>
 </FullscreenDiv>

src/routes/(fullscreen)/file/uploads/File.svelte

@@ -1,7 +1,6 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
-  import { formatNetworkSpeed } from "$lib/modules/util";
-  import type { FileUploadStatus } from "$lib/stores";
+  import type { FileUploadState } from "$lib/modules/file";
+  import { formatNetworkSpeed } from "$lib/utils";
 
   import IconPending from "~icons/material-symbols/pending";
   import IconLockClock from "~icons/material-symbols/lock-clock";
@@ -11,45 +10,45 @@
   import IconError from "~icons/material-symbols/error";
 
   interface Props {
-    status: Writable<FileUploadStatus>;
+    state: FileUploadState;
   }
 
-  let { status }: Props = $props();
+  let { state }: Props = $props();
 </script>
 
 <div class="flex h-14 items-center gap-x-4 p-2">
   <div class="flex-shrink-0 text-lg text-gray-600">
-    {#if $status.status === "encryption-pending"}
+    {#if state.status === "encryption-pending"}
       <IconPending />
-    {:else if $status.status === "encrypting"}
+    {:else if state.status === "encrypting"}
       <IconLockClock />
-    {:else if $status.status === "upload-pending"}
+    {:else if state.status === "upload-pending"}
       <IconCloud />
-    {:else if $status.status === "uploading"}
+    {:else if state.status === "uploading"}
       <IconCloudUpload />
-    {:else if $status.status === "uploaded"}
+    {:else if state.status === "uploaded"}
       <IconCloudDone class="text-blue-500" />
-    {:else if $status.status === "error"}
+    {:else if state.status === "error"}
       <IconError class="text-red-500" />
     {/if}
   </div>
   <div class="flex-grow overflow-hidden">
-    <p title={$status.name} class="truncate font-medium">
-      {$status.name}
+    <p title={state.name} class="truncate font-medium">
+      {state.name}
     </p>
     <p class="text-xs text-gray-800">
-      {#if $status.status === "encryption-pending"}
+      {#if state.status === "encryption-pending"}
         준비 중
-      {:else if $status.status === "encrypting"}
+      {:else if state.status === "encrypting"}
         암호화하는 중
-      {:else if $status.status === "upload-pending"}
+      {:else if state.status === "upload-pending"}
         업로드를 기다리는 중
-      {:else if $status.status === "uploading"}
+      {:else if state.status === "uploading"}
         전송됨
-        {Math.floor(($status.progress ?? 0) * 100)}% · {formatNetworkSpeed(($status.rate ?? 0) * 8)}
-      {:else if $status.status === "uploaded"}
+        {Math.floor((state.progress ?? 0) * 100)}% · {formatNetworkSpeed((state.rate ?? 0) * 8)}
+      {:else if state.status === "uploaded"}
         업로드 완료
-      {:else if $status.status === "error"}
+      {:else if state.status === "error"}
         업로드 실패
       {/if}
     </p>

src/routes/(fullscreen)/gallery/+page.server.ts

@@ -0,0 +1,7 @@
+import { createCaller } from "$trpc/router.server";
+import type { PageServerLoad } from "./$types";
+
+export const load: PageServerLoad = async (event) => {
+  const files = await createCaller(event).file.list();
+  return { files };
+};

src/routes/(fullscreen)/gallery/+page.svelte

@@ -0,0 +1,26 @@
+<script lang="ts">
+  import type { Writable } from "svelte/store";
+  import { goto } from "$app/navigation";
+  import { FullscreenDiv } from "$lib/components/atoms";
+  import { TopBar } from "$lib/components/molecules";
+  import { Gallery } from "$lib/components/organisms";
+  import { getFileInfo, type FileInfo } from "$lib/modules/filesystem";
+  import { masterKeyStore } from "$lib/stores";
+
+  let { data } = $props();
+
+  let files: Writable<FileInfo | null>[] = $state([]);
+
+  $effect(() => {
+    files = data.files.map((file) => getFileInfo(file, $masterKeyStore?.get(1)?.key!));
+  });
+</script>
+
+<svelte:head>
+  <title>사진 및 동영상</title>
+</svelte:head>
+
+<TopBar title="사진 및 동영상" />
+<FullscreenDiv>
+  <Gallery {files} onFileClick={({ id }) => goto(`/file/${id}?from=gallery`)} />
+</FullscreenDiv>

src/routes/(fullscreen)/key/export/+page.ts

@@ -1,5 +1,5 @@
 import { error } from "@sveltejs/kit";
-import { keyExportState } from "$lib/hooks/gotoStateful";
+import { keyExportState } from "$lib/utils";
 import type { PageLoad } from "./$types";
 
 export const load: PageLoad = async () => {

src/routes/(fullscreen)/key/generate/+page.svelte

@@ -4,9 +4,9 @@
   import { BottomDiv, Button, FullscreenDiv, TextButton } from "$lib/components/atoms";
   import { TitledDiv } from "$lib/components/molecules";
   import { ForceLoginModal } from "$lib/components/organisms";
-  import { gotoStateful } from "$lib/hooks";
   import { storeClientKeys } from "$lib/modules/key";
   import { clientKeyStore } from "$lib/stores";
+  import { gotoStateful } from "$lib/utils";
   import Order from "./Order.svelte";
   import {
     generateClientKeys,

src/routes/(fullscreen)/settings/cache/+page.svelte

@@ -6,8 +6,8 @@
   import type { FileCacheIndex } from "$lib/indexedDB";
   import { getFileCacheIndex, deleteFileCache as doDeleteFileCache } from "$lib/modules/file";
   import { getFileInfo, type FileInfo } from "$lib/modules/filesystem";
-  import { formatFileSize } from "$lib/modules/util";
   import { masterKeyStore } from "$lib/stores";
+  import { formatFileSize } from "$lib/utils";
   import File from "./File.svelte";
 
   interface FileCache {

src/routes/(fullscreen)/settings/cache/File.svelte

@@ -2,7 +2,7 @@
   import type { Writable } from "svelte/store";
   import type { FileCacheIndex } from "$lib/indexedDB";
   import type { FileInfo } from "$lib/modules/filesystem";
-  import { formatDate, formatFileSize } from "$lib/modules/util";
+  import { formatDate, formatFileSize } from "$lib/utils";
 
   import IconDraft from "~icons/material-symbols/draft";
   import IconScanDelete from "~icons/material-symbols/scan-delete";

src/routes/(fullscreen)/settings/thumbnail/+page.server.ts

@@ -0,0 +1,7 @@
+import { createCaller } from "$trpc/router.server";
+import type { PageServerLoad } from "./$types";
+
+export const load: PageServerLoad = async (event) => {
+  const files = await createCaller(event).file.listWithoutThumbnail();
+  return { files };
+};

src/routes/(fullscreen)/settings/thumbnail/+page.ts

@@ -1,14 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { callPostApi } from "$lib/hooks";
-import type { MissingThumbnailFileScanResponse } from "$lib/server/schemas";
-import type { PageLoad } from "./$types";
-
-export const load: PageLoad = async ({ fetch }) => {
-  const res = await callPostApi("/api/file/scanMissingThumbnails", undefined, fetch);
-  if (!res.ok) {
-    error(500, "Internal server error");
-  }
-
-  const { files }: MissingThumbnailFileScanResponse = await res.json();
-  return { files };
-};

src/routes/(fullscreen)/settings/thumbnail/File.svelte

@@ -14,7 +14,7 @@
   import { ActionEntryButton } from "$lib/components/atoms";
   import { DirectoryEntryLabel } from "$lib/components/molecules";
   import type { FileInfo } from "$lib/modules/filesystem";
-  import { formatDateTime } from "$lib/modules/util";
+  import { formatDateTime } from "$lib/utils";
   import type { GenerationStatus } from "./service.svelte";
 
   import IconCamera from "~icons/material-symbols/camera";

src/routes/(main)/BottomBar.svelte

@@ -22,7 +22,7 @@
   <AdaptiveDiv class="flex justify-evenly px-4 py-2">
     {#each pages as { path, label, icon: Icon }}
       <button
-        onclick={() => goto(path)}
+        onclick={() => goto(path, { replaceState: true })}
         class={[
           "w-16 active:rounded-xl active:bg-gray-100",
           !page.url.pathname.startsWith(path) && "text-gray-600",

src/routes/(main)/category/[[id]]/+page.svelte

@@ -1,9 +1,8 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
   import { goto } from "$app/navigation";
   import { TopBar } from "$lib/components/molecules";
   import { Category, CategoryCreateModal } from "$lib/components/organisms";
-  import { getCategoryInfo, updateCategoryInfo, type CategoryInfo } from "$lib/modules/filesystem";
+  import { getCategoryInfo, type CategoryInfo } from "$lib/modules/filesystem2.svelte";
   import { masterKeyStore } from "$lib/stores";
   import CategoryDeleteModal from "./CategoryDeleteModal.svelte";
   import CategoryMenuBottomSheet from "./CategoryMenuBottomSheet.svelte";
@@ -19,9 +18,7 @@
   let { data } = $props();
   let context = createContext();
 
-  let info: Writable<CategoryInfo | null> | undefined = $state();
-
-  let isFileRecursive: boolean | undefined = $state();
+  let infoPromise: Promise<CategoryInfo> | undefined = $state();
 
   let isCategoryCreateModalOpen = $state(false);
   let isCategoryMenuBottomSheetOpen = $state(false);
@@ -29,20 +26,7 @@
   let isCategoryDeleteModalOpen = $state(false);
 
   $effect(() => {
-    info = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!);
-    isFileRecursive = undefined;
-  });
-
-  $effect(() => {
-    if ($info && isFileRecursive === undefined) {
-      isFileRecursive = $info.isFileRecursive ?? false;
-    }
-  });
-
-  $effect(() => {
-    if (data.id !== "root" && $info?.isFileRecursive !== isFileRecursive) {
-      updateCategoryInfo(data.id as number, { isFileRecursive });
-    }
+    infoPromise = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!);
   });
 </script>
 
@@ -50,18 +34,19 @@
   <title>카테고리</title>
 </svelte:head>
 
-{#if data.id !== "root"}
-  <TopBar title={$info?.name} />
+{#await infoPromise then info}
+  {#if info}
+    {#if info.id !== "root"}
+      <TopBar title={info.name} />
     {/if}
     <div class="min-h-full bg-gray-100 pb-[5.5em]">
-  {#if $info && isFileRecursive !== undefined}
       <Category
-      bind:isFileRecursive
-      info={$info}
-      onFileClick={({ id }) => goto(`/file/${id}`)}
+        bind:isFileRecursive={info.isFileRecursive}
+        {info}
+        onFileClick={({ id }) => goto(`/file/${id}?from=category`)}
         onFileRemoveClick={async ({ id }) => {
           await requestFileRemovalFromCategory(id, data.id as number);
-        info = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
         }}
         onSubCategoryClick={({ id }) => goto(`/category/${id}`)}
         onSubCategoryCreateClick={() => (isCategoryCreateModalOpen = true)}
@@ -70,14 +55,13 @@
           isCategoryMenuBottomSheetOpen = true;
         }}
       />
-  {/if}
     </div>
 
     <CategoryCreateModal
       bind:isOpen={isCategoryCreateModalOpen}
       onCreateClick={async (name: string) => {
         if (await requestCategoryCreation(name, data.id, $masterKeyStore?.get(1)!)) {
-      info = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
@@ -99,7 +83,7 @@
       bind:isOpen={isCategoryRenameModalOpen}
       onRenameClick={async (newName: string) => {
         if (await requestCategoryRename(context.selectedCategory!, newName)) {
-      info = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
@@ -109,9 +93,11 @@
       bind:isOpen={isCategoryDeleteModalOpen}
       onDeleteClick={async () => {
         if (await requestCategoryDeletion(context.selectedCategory!)) {
-      info = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
       }}
     />
+  {/if}
+{/await}

src/routes/(main)/category/[[id]]/CategoryDeleteModal.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import { ActionModal } from "$lib/components/molecules";
-  import { truncateString } from "$lib/modules/util";
+  import { truncateString } from "$lib/utils";
   import { useContext } from "./service.svelte";
 
   interface Props {

src/routes/(main)/category/[[id]]/service.svelte.ts

@@ -1,8 +1,7 @@
 import { getContext, setContext } from "svelte";
-import { callPostApi } from "$lib/hooks";
 import { encryptString } from "$lib/modules/crypto";
 import type { SelectedCategory } from "$lib/components/molecules";
-import type { CategoryRenameRequest } from "$lib/server/schemas";
+import { trpc } from "$trpc/client";
 
 export { requestCategoryCreation, requestFileRemovalFromCategory } from "$lib/services/category";
 
@@ -18,17 +17,33 @@ export const useContext = () => {
 };
 
 export const requestCategoryRename = async (category: SelectedCategory, newName: string) => {
-  const newNameEncrypted = await encryptString(newName, category.dataKey);
+  if (!category.dataKey) {
+    // TODO: Error Handling
+    return false;
+  }
 
-  const res = await callPostApi<CategoryRenameRequest>(`/api/category/${category.id}/rename`, {
-    dekVersion: category.dataKeyVersion.toISOString(),
+  const newNameEncrypted = await encryptString(newName, category.dataKey.key);
+
+  try {
+    await trpc().category.rename.mutate({
+      id: category.id,
+      dekVersion: category.dataKey.version,
       name: newNameEncrypted.ciphertext,
       nameIv: newNameEncrypted.iv,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestCategoryDeletion = async (category: SelectedCategory) => {
-  const res = await callPostApi(`/api/category/${category.id}/delete`);
-  return res.ok;
+  try {
+    await trpc().category.delete.mutate({ id: category.id });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(main)/directory/[[id]]/+page.svelte

@@ -1,10 +1,10 @@
 <script lang="ts">
   import { onMount } from "svelte";
-  import type { Writable } from "svelte/store";
   import { goto } from "$app/navigation";
+  import { page } from "$app/state";
   import { FloatingButton } from "$lib/components/atoms";
   import { TopBar } from "$lib/components/molecules";
-  import { getDirectoryInfo, type DirectoryInfo } from "$lib/modules/filesystem";
+  import { getDirectoryInfo, type DirectoryInfo } from "$lib/modules/filesystem2.svelte";
   import { masterKeyStore, hmacSecretStore } from "$lib/stores";
   import DirectoryCreateModal from "./DirectoryCreateModal.svelte";
   import DirectoryEntries from "./DirectoryEntries";
@@ -29,7 +29,7 @@
   let { data } = $props();
   let context = createContext();
 
-  let info: Writable<DirectoryInfo | null> | undefined = $state();
+  let infoPromise: Promise<DirectoryInfo> | undefined = $state();
   let fileInput: HTMLInputElement | undefined = $state();
   let duplicatedFile: File | undefined = $state();
   let resolveForDuplicateFileModal: ((res: boolean) => void) | undefined = $state();
@@ -42,6 +42,9 @@
   let isEntryRenameModalOpen = $state(false);
   let isEntryDeleteModalOpen = $state(false);
 
+  let isFromFilePage = $derived(page.url.searchParams.get("from") === "file");
+  let showTopBar = $derived(data.id !== "root" || isFromFilePage);
+
   const uploadFile = () => {
     const files = fileInput?.files;
     if (!files || files.length === 0) return;
@@ -57,7 +60,7 @@
         .then((res) => {
           if (!res) return;
           // TODO: FIXME
-          info = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!);
+          infoPromise = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!);
         })
         .catch((e: Error) => {
           // TODO: FIXME
@@ -75,7 +78,7 @@
   });
 
   $effect(() => {
-    info = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!);
+    infoPromise = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!);
   });
 </script>
 
@@ -85,28 +88,33 @@
 
 <input bind:this={fileInput} onchange={uploadFile} type="file" multiple class="hidden" />
 
+{#await infoPromise then info}
+  {#if info}
     <div class="flex h-full flex-col">
-  {#if data.id !== "root"}
-    <TopBar title={$info?.name} class="flex-shrink-0" />
+      {#if showTopBar}
+        <TopBar title={info.name} class="flex-shrink-0" />
       {/if}
-  {#if $info}
-    <div class={["flex flex-grow flex-col px-4 pb-4", data.id === "root" && "pt-4"]}>
+      <div class={["flex flex-grow flex-col px-4 pb-4", !showTopBar && "pt-4"]}>
         <div class="flex gap-x-2">
           <UploadStatusCard onclick={() => goto("/file/uploads")} />
           <DownloadStatusCard onclick={() => goto("/file/downloads")} />
         </div>
-      {#key $info}
         <DirectoryEntries
-          info={$info}
+          {info}
           onEntryClick={({ type, id }) => goto(`/${type}/${id}`)}
           onEntryMenuClick={(entry) => {
             context.selectedEntry = entry;
             isEntryMenuBottomSheetOpen = true;
           }}
+          showParentEntry={isFromFilePage && info.parentId !== undefined}
+          onParentClick={() =>
+            goto(
+              info.parentId === "root"
+                ? "/directory?from=file"
+                : `/directory/${info.parentId}?from=file`,
+            )}
         />
-      {/key}
       </div>
-  {/if}
     </div>
 
     <FloatingButton
@@ -131,7 +139,7 @@
       bind:isOpen={isDirectoryCreateModalOpen}
       onCreateClick={async (name) => {
         if (await requestDirectoryCreation(name, data.id, $masterKeyStore?.get(1)!)) {
-      info = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
@@ -165,7 +173,7 @@
       bind:isOpen={isEntryRenameModalOpen}
       onRenameClick={async (newName: string) => {
         if (await requestEntryRename(context.selectedEntry!, newName)) {
-      info = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
@@ -175,9 +183,11 @@
       bind:isOpen={isEntryDeleteModalOpen}
       onDeleteClick={async () => {
         if (await requestEntryDeletion(context.selectedEntry!)) {
-      info = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
+          infoPromise = getDirectoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME
           return true;
         }
         return false;
       }}
     />
+  {/if}
+{/await}

src/routes/(main)/directory/[[id]]/DirectoryEntries/DirectoryEntries.svelte

@@ -1,19 +1,9 @@
 <script lang="ts">
-  import { untrack } from "svelte";
-  import { get, type Writable } from "svelte/store";
-  import {
-    getDirectoryInfo,
-    getFileInfo,
-    type DirectoryInfo,
-    type FileInfo,
-  } from "$lib/modules/filesystem";
-  import { SortBy, sortEntries } from "$lib/modules/util";
-  import {
-    fileUploadStatusStore,
-    isFileUploading,
-    masterKeyStore,
-    type FileUploadStatus,
-  } from "$lib/stores";
+  import { ActionEntryButton, RowVirtualizer } from "$lib/components/atoms";
+  import { DirectoryEntryLabel } from "$lib/components/molecules";
+  import { getUploadingFiles, type LiveFileUploadState } from "$lib/modules/file";
+  import type { DirectoryInfo } from "$lib/modules/filesystem2.svelte";
+  import { sortEntries } from "$lib/utils";
   import File from "./File.svelte";
   import SubDirectory from "./SubDirectory.svelte";
   import UploadingFile from "./UploadingFile.svelte";
@@ -23,101 +13,69 @@
     info: DirectoryInfo;
     onEntryClick: (entry: SelectedEntry) => void;
     onEntryMenuClick: (entry: SelectedEntry) => void;
-    sortBy?: SortBy;
+    onParentClick?: () => void;
+    showParentEntry?: boolean;
   }
 
-  let { info, onEntryClick, onEntryMenuClick, sortBy = SortBy.NAME_ASC }: Props = $props();
-
-  interface DirectoryEntry {
-    name?: string;
-    info: Writable<DirectoryInfo | null>;
-  }
-
-  type FileEntry =
-    | {
-        type: "file";
-        name?: string;
-        info: Writable<FileInfo | null>;
-      }
-    | {
-        type: "uploading-file";
-        name: string;
-        info: Writable<FileUploadStatus>;
-      };
-
-  let subDirectories: DirectoryEntry[] = $state([]);
-  let files: FileEntry[] = $state([]);
-
-  $effect(() => {
-    // TODO: Fix duplicated requests
-
-    subDirectories = info.subDirectoryIds.map((id) => {
-      const info = getDirectoryInfo(id, $masterKeyStore?.get(1)?.key!);
-      return { name: get(info)?.name, info };
-    });
-    files = info.fileIds
-      .map((id): FileEntry => {
-        const info = getFileInfo(id, $masterKeyStore?.get(1)?.key!);
-        return {
-          type: "file",
-          name: get(info)?.name,
+  let {
     info,
-        };
-      })
-      .concat(
-        $fileUploadStatusStore
-          .filter((statusStore) => {
-            const { parentId, status } = get(statusStore);
-            return parentId === info.id && isFileUploading(status);
-          })
-          .map((status) => ({
-            type: "uploading-file",
-            name: get(status).name,
-            info: status,
-          })),
-      );
+    onEntryClick,
+    onEntryMenuClick,
+    onParentClick,
+    showParentEntry = false,
+  }: Props = $props();
 
-    const sort = () => {
-      sortEntries(subDirectories, sortBy);
-      sortEntries(files, sortBy);
-    };
-    return untrack(() => {
-      sort();
+  type Entry =
+    | { type: "parent" }
+    | { type: "directory"; name: string; details: (typeof info.subDirectories)[number] }
+    | { type: "file"; name: string; details: (typeof info.files)[number] }
+    | { type: "uploading-file"; name: string; details: LiveFileUploadState };
 
-      const unsubscribes = subDirectories
-        .map((subDirectory) =>
-          subDirectory.info.subscribe((value) => {
-            if (subDirectory.name === value?.name) return;
-            subDirectory.name = value?.name;
-            sort();
-          }),
-        )
-        .concat(
-          files.map((file) =>
-            file.info.subscribe((value) => {
-              if (file.name === value?.name) return;
-              file.name = value?.name;
-              sort();
-            }),
-          ),
-        );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
+  const toEntry =
+    <T extends Exclude<Entry["type"], "parent">>(type: T) =>
+    (details: Extract<Entry, { type: T }>["details"]) => ({
+      type,
+      name: details.name,
+      details,
     });
+
+  let entries = $derived([
+    ...(showParentEntry ? ([{ type: "parent" }] as const) : []),
+    ...sortEntries(info.subDirectories.map(toEntry("directory"))),
+    ...sortEntries([
+      ...info.files.map(toEntry("file")),
+      ...getUploadingFiles(info.id).map(toEntry("uploading-file")),
+    ]),
+  ]);
 </script>
 
-{#if subDirectories.length + files.length > 0}
-  <div class="space-y-1 pb-[4.5rem]">
-    {#each subDirectories as { info }}
-      <SubDirectory {info} onclick={onEntryClick} onOpenMenuClick={onEntryMenuClick} />
-    {/each}
-    {#each files as file}
-      {#if file.type === "file"}
-        <File info={file.info} onclick={onEntryClick} onOpenMenuClick={onEntryMenuClick} />
+{#if entries.length > 0}
+  <div class="pb-[4.5rem]">
+    <RowVirtualizer
+      count={entries.length}
+      itemHeight={(index) => 56 + (index + 1 < entries.length ? 4 : 0)}
+    >
+      {#snippet item(index)}
+        {@const entry = entries[index]!}
+        <div class={index + 1 < entries.length ? "pb-1" : ""}>
+          {#if entry.type === "parent"}
+            <ActionEntryButton class="h-14" onclick={onParentClick}>
+              <DirectoryEntryLabel type="parent-directory" name=".." />
+            </ActionEntryButton>
+          {:else if entry.type === "directory"}
+            <SubDirectory
+              info={entry.details}
+              onclick={onEntryClick}
+              onOpenMenuClick={onEntryMenuClick}
+            />
+          {:else if entry.type === "file"}
+            <File info={entry.details} onclick={onEntryClick} onOpenMenuClick={onEntryMenuClick} />
           {:else}
-        <UploadingFile status={file.info} />
+            <UploadingFile state={entry.details} />
           {/if}
-    {/each}
+        </div>
+      {/snippet}
+    </RowVirtualizer>
   </div>
 {:else}
   <div class="flex flex-grow items-center justify-center">

src/routes/(main)/directory/[[id]]/DirectoryEntries/File.svelte

@@ -1,66 +1,52 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
+  import { browser } from "$app/environment";
   import { ActionEntryButton } from "$lib/components/atoms";
   import { DirectoryEntryLabel } from "$lib/components/molecules";
-  import type { FileInfo } from "$lib/modules/filesystem";
-  import { formatDateTime } from "$lib/modules/util";
-  import { requestFileThumbnailDownload } from "./service";
+  import type { SummarizedFileInfo } from "$lib/modules/filesystem2.svelte";
+  import { requestFileThumbnailDownload } from "$lib/services/file";
+  import { formatDateTime } from "$lib/utils";
   import type { SelectedEntry } from "../service.svelte";
 
   import IconMoreVert from "~icons/material-symbols/more-vert";
 
   interface Props {
-    info: Writable<FileInfo | null>;
-    onclick: (selectedEntry: SelectedEntry) => void;
-    onOpenMenuClick: (selectedEntry: SelectedEntry) => void;
+    info: SummarizedFileInfo;
+    onclick: (entry: SelectedEntry) => void;
+    onOpenMenuClick: (entry: SelectedEntry) => void;
   }
 
   let { info, onclick, onOpenMenuClick }: Props = $props();
 
-  let thumbnail: string | undefined = $state();
+  let showThumbnail = $derived(
+    browser && (info.contentType.startsWith("image/") || info.contentType.startsWith("video/")),
+  );
+  let thumbnailPromise = $derived(
+    showThumbnail ? requestFileThumbnailDownload(info.id, info.dataKey?.key) : null,
+  );
 
-  const openFile = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info!;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onclick({ type: "file", id, dataKey, dataKeyVersion, name });
+  const action = (callback: typeof onclick) => {
+    callback({ type: "file", id: info.id, dataKey: info.dataKey, name: info.name });
   };
-
-  const openMenu = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info!;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onOpenMenuClick({ type: "file", id, dataKey, dataKeyVersion, name });
-  };
-
-  $effect(() => {
-    if ($info?.dataKey) {
-      requestFileThumbnailDownload($info.id, $info.dataKey)
-        .then((thumbnailUrl) => {
-          thumbnail = thumbnailUrl ?? undefined;
-        })
-        .catch(() => {
-          // TODO: Error Handling
-          thumbnail = undefined;
-        });
-    } else {
-      thumbnail = undefined;
-    }
-  });
 </script>
 
-{#if $info}
 <ActionEntryButton
   class="h-14"
-    onclick={openFile}
+  onclick={() => action(onclick)}
   actionButtonIcon={IconMoreVert}
-    onActionButtonClick={openMenu}
+  onActionButtonClick={() => action(onOpenMenuClick)}
 >
+  {#await thumbnailPromise}
     <DirectoryEntryLabel
       type="file"
-      {thumbnail}
-      name={$info.name}
-      subtext={formatDateTime($info.createdAt ?? $info.lastModifiedAt)}
+      name={info.name}
+      subtext={formatDateTime(info.createdAt ?? info.lastModifiedAt)}
     />
+  {:then thumbnail}
+    <DirectoryEntryLabel
+      type="file"
+      thumbnail={thumbnail ?? undefined}
+      name={info.name}
+      subtext={formatDateTime(info.createdAt ?? info.lastModifiedAt)}
+    />
+  {/await}
 </ActionEntryButton>
-{/if}

src/routes/(main)/directory/[[id]]/DirectoryEntries/SubDirectory.svelte

@@ -1,44 +1,29 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
   import { ActionEntryButton } from "$lib/components/atoms";
   import { DirectoryEntryLabel } from "$lib/components/molecules";
-  import type { DirectoryInfo } from "$lib/modules/filesystem";
+  import type { SubDirectoryInfo } from "$lib/modules/filesystem2.svelte";
   import type { SelectedEntry } from "../service.svelte";
 
   import IconMoreVert from "~icons/material-symbols/more-vert";
 
-  type SubDirectoryInfo = DirectoryInfo & { id: number };
-
   interface Props {
-    info: Writable<DirectoryInfo | null>;
-    onclick: (selectedEntry: SelectedEntry) => void;
-    onOpenMenuClick: (selectedEntry: SelectedEntry) => void;
+    info: SubDirectoryInfo;
+    onclick: (entry: SelectedEntry) => void;
+    onOpenMenuClick: (entry: SelectedEntry) => void;
   }
 
   let { info, onclick, onOpenMenuClick }: Props = $props();
 
-  const openDirectory = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as SubDirectoryInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onclick({ type: "directory", id, dataKey, dataKeyVersion, name });
-  };
-
-  const openMenu = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as SubDirectoryInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onOpenMenuClick({ type: "directory", id, dataKey, dataKeyVersion, name });
+  const action = (callback: typeof onclick) => {
+    callback({ type: "directory", id: info.id, dataKey: info.dataKey, name: info.name });
   };
 </script>
 
-{#if $info}
 <ActionEntryButton
   class="h-14"
-    onclick={openDirectory}
+  onclick={() => action(onclick)}
   actionButtonIcon={IconMoreVert}
-    onActionButtonClick={openMenu}
+  onActionButtonClick={() => action(onOpenMenuClick)}
 >
-    <DirectoryEntryLabel type="directory" name={$info.name!} />
+  <DirectoryEntryLabel type="directory" name={info.name} />
 </ActionEntryButton>
-{/if}

src/routes/(main)/directory/[[id]]/DirectoryEntries/UploadingFile.svelte

@@ -1,38 +1,35 @@
 <script lang="ts">
-  import type { Writable } from "svelte/store";
-  import { formatNetworkSpeed } from "$lib/modules/util";
-  import { isFileUploading, type FileUploadStatus } from "$lib/stores";
+  import type { LiveFileUploadState } from "$lib/modules/file";
+  import { formatNetworkSpeed } from "$lib/utils";
 
   import IconDraft from "~icons/material-symbols/draft";
 
   interface Props {
-    status: Writable<FileUploadStatus>;
+    state: LiveFileUploadState;
   }
 
-  let { status }: Props = $props();
+  let { state }: Props = $props();
 </script>
 
-{#if isFileUploading($status.status)}
 <div class="flex h-14 gap-x-4 p-2">
   <div class="flex h-10 w-10 flex-shrink-0 items-center justify-center text-xl">
     <IconDraft class="text-gray-600" />
   </div>
   <div class="flex flex-grow flex-col overflow-hidden text-gray-800">
-      <p title={$status.name} class="truncate font-medium">
-        {$status.name}
+    <p title={state.name} class="truncate font-medium">
+      {state.name}
     </p>
     <p class="text-xs">
-        {#if $status.status === "encryption-pending"}
+      {#if state.status === "encryption-pending"}
         준비 중
-        {:else if $status.status === "encrypting"}
+      {:else if state.status === "encrypting"}
         암호화하는 중
-        {:else if $status.status === "upload-pending"}
+      {:else if state.status === "upload-pending"}
         업로드를 기다리는 중
-        {:else if $status.status === "uploading"}
-          전송됨 {Math.floor(($status.progress ?? 0) * 100)}% ·
-          {formatNetworkSpeed(($status.rate ?? 0) * 8)}
+      {:else if state.status === "uploading"}
+        전송됨 {Math.floor((state.progress ?? 0) * 100)}% ·
+        {formatNetworkSpeed((state.rate ?? 0) * 8)}
       {/if}
     </p>
   </div>
 </div>
-{/if}

src/routes/(main)/directory/[[id]]/DirectoryEntries/service.ts

@@ -1 +0,0 @@
-export { requestFileThumbnailDownload } from "$lib/services/file";

src/routes/(main)/directory/[[id]]/DuplicateFileModal.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import { ActionModal } from "$lib/components/molecules";
-  import { truncateString } from "$lib/modules/util";
+  import { truncateString } from "$lib/utils";
 
   interface Props {
     file: File | undefined;

src/routes/(main)/directory/[[id]]/EntryDeleteModal.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import { ActionModal } from "$lib/components/molecules";
-  import { truncateString } from "$lib/modules/util";
+  import { truncateString } from "$lib/utils";
   import { useContext } from "./service.svelte";
 
   interface Props {

src/routes/(main)/directory/[[id]]/UploadStatusCard.svelte

@@ -1,7 +1,5 @@
 <script lang="ts">
-  import { untrack } from "svelte";
-  import { get, type Writable } from "svelte/store";
-  import { fileUploadStatusStore, isFileUploading, type FileUploadStatus } from "$lib/stores";
+  import { getUploadingFiles } from "$lib/modules/file";
 
   interface Props {
     onclick: () => void;
@@ -9,21 +7,7 @@
 
   let { onclick }: Props = $props();
 
-  let uploadingFiles: Writable<FileUploadStatus>[] = $state([]);
-
-  $effect(() => {
-    uploadingFiles = $fileUploadStatusStore.filter((status) => isFileUploading(get(status).status));
-    return untrack(() => {
-      const unsubscribes = uploadingFiles.map((uploadingFile) =>
-        uploadingFile.subscribe(({ status }) => {
-          if (!isFileUploading(status)) {
-            uploadingFiles = uploadingFiles.filter((file) => file !== uploadingFile);
-          }
-        }),
-      );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
-  });
+  let uploadingFiles = $derived(getUploadingFiles());
 </script>
 
 {#if uploadingFiles.length > 0}

src/routes/(main)/directory/[[id]]/service.svelte.ts

@@ -1,5 +1,4 @@
 import { getContext, setContext } from "svelte";
-import { callGetApi, callPostApi } from "$lib/hooks";
 import { storeHmacSecrets } from "$lib/indexedDB";
 import { generateDataKey, wrapDataKey, unwrapHmacSecret, encryptString } from "$lib/modules/crypto";
 import {
@@ -9,20 +8,13 @@ import {
   deleteFileThumbnailCache,
   uploadFile,
 } from "$lib/modules/file";
-import type {
-  DirectoryRenameRequest,
-  DirectoryCreateRequest,
-  FileRenameRequest,
-  HmacSecretListResponse,
-  DirectoryDeleteResponse,
-} from "$lib/server/schemas";
 import { hmacSecretStore, type MasterKey, type HmacSecret } from "$lib/stores";
+import { trpc } from "$trpc/client";
 
 export interface SelectedEntry {
   type: "directory" | "file";
   id: number;
-  dataKey: CryptoKey;
-  dataKeyVersion: Date;
+  dataKey: { key: CryptoKey; version: Date } | undefined;
   name: string;
 }
 
@@ -40,10 +32,14 @@ export const useContext = () => {
 export const requestHmacSecretDownload = async (masterKey: CryptoKey) => {
   // TODO: MEK rotation
 
-  const res = await callGetApi("/api/hsk/list");
-  if (!res.ok) return false;
+  let hmacSecretsWrapped;
+  try {
+    hmacSecretsWrapped = await trpc().hsk.list.query();
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 
-  const { hsks: hmacSecretsWrapped }: HmacSecretListResponse = await res.json();
   const hmacSecrets = await Promise.all(
     hmacSecretsWrapped.map(async ({ version, state, hsk: hmacSecretWrapped }) => {
       const { hmacSecret } = await unwrapHmacSecret(hmacSecretWrapped, masterKey);
@@ -65,15 +61,20 @@ export const requestDirectoryCreation = async (
   const { dataKey, dataKeyVersion } = await generateDataKey();
   const nameEncrypted = await encryptString(name, dataKey);
 
-  const res = await callPostApi<DirectoryCreateRequest>("/api/directory/create", {
+  try {
+    await trpc().directory.create.mutate({
       parent: parentId,
       mekVersion: masterKey.version,
       dek: await wrapDataKey(dataKey, masterKey.key),
-    dekVersion: dataKeyVersion.toISOString(),
+      dekVersion: dataKeyVersion,
       name: nameEncrypted.ciphertext,
       nameIv: nameEncrypted.iv,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestFileUpload = async (
@@ -95,37 +96,53 @@ export const requestFileUpload = async (
 };
 
 export const requestEntryRename = async (entry: SelectedEntry, newName: string) => {
-  const newNameEncrypted = await encryptString(newName, entry.dataKey);
+  if (!entry.dataKey) {
+    // TODO: Error Handling
+    return false;
+  }
 
-  let res;
+  const newNameEncrypted = await encryptString(newName, entry.dataKey.key);
+
+  try {
     if (entry.type === "directory") {
-    res = await callPostApi<DirectoryRenameRequest>(`/api/directory/${entry.id}/rename`, {
-      dekVersion: entry.dataKeyVersion.toISOString(),
+      await trpc().directory.rename.mutate({
+        id: entry.id,
+        dekVersion: entry.dataKey.version,
         name: newNameEncrypted.ciphertext,
         nameIv: newNameEncrypted.iv,
       });
     } else {
-    res = await callPostApi<FileRenameRequest>(`/api/file/${entry.id}/rename`, {
-      dekVersion: entry.dataKeyVersion.toISOString(),
+      await trpc().file.rename.mutate({
+        id: entry.id,
+        dekVersion: entry.dataKey.version,
         name: newNameEncrypted.ciphertext,
         nameIv: newNameEncrypted.iv,
       });
     }
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestEntryDeletion = async (entry: SelectedEntry) => {
-  const res = await callPostApi(`/api/${entry.type}/${entry.id}/delete`);
-  if (!res.ok) return false;
-
+  try {
     if (entry.type === "directory") {
-    const { deletedFiles }: DirectoryDeleteResponse = await res.json();
+      const { deletedFiles } = await trpc().directory.delete.mutate({ id: entry.id });
       await Promise.all(
-      deletedFiles.flatMap((fileId) => [deleteFileCache(fileId), deleteFileThumbnailCache(fileId)]),
+        deletedFiles.flatMap((fileId) => [
+          deleteFileCache(fileId),
+          deleteFileThumbnailCache(fileId),
+        ]),
       );
-    return true;
     } else {
+      await trpc().file.delete.mutate({ id: entry.id });
       await Promise.all([deleteFileCache(entry.id), deleteFileThumbnailCache(entry.id)]);
+    }
     return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
   }
 };

src/routes/(main)/home/+page.svelte

@@ -1,3 +1,36 @@
-<div class="flex h-full items-center justify-center p-4">
-  <p class="text-gray-500">아직 개발 중이에요.</p>
+<script lang="ts">
+  import type { Writable } from "svelte/store";
+  import { goto } from "$app/navigation";
+  import { EntryButton, FileThumbnailButton } from "$lib/components/atoms";
+  import { getFileInfo, type FileInfo } from "$lib/modules/filesystem";
+  import { masterKeyStore } from "$lib/stores";
+  import { requestFreshMediaFilesRetrieval } from "./service";
+
+  let mediaFiles: Writable<FileInfo | null>[] = $state([]);
+
+  $effect(() => {
+    requestFreshMediaFilesRetrieval().then((files) => {
+      mediaFiles = files.map(({ id }) => getFileInfo(id, $masterKeyStore?.get(1)?.key!));
+    });
+  });
+</script>
+
+<svelte:head>
+  <title>홈</title>
+</svelte:head>
+
+<div class="min-h-full space-y-4 bg-gray-100 px-4 pb-[5.5em] pt-4">
+  <p class="px-2 text-2xl font-bold text-gray-800">ArkVault</p>
+  <div class="rounded-xl bg-white p-2">
+    <EntryButton onclick={() => goto("/gallery")} class="w-full">
+      <p class="text-left font-semibold">사진 및 동영상</p>
+    </EntryButton>
+    {#if mediaFiles.length > 0}
+      <div class="grid grid-cols-4 gap-2 p-2">
+        {#each mediaFiles as file}
+          <FileThumbnailButton info={file} onclick={({ id }) => goto(`/file/${id}`)} />
+        {/each}
+      </div>
+    {/if}
+  </div>
 </div>