/api/category/[id], /api/category/create Endpoint 구현

src/lib/server/services/category.ts

@@ -0,0 +1,45 @@
+import { error } from "@sveltejs/kit";
+import {
+  registerCategory,
+  getAllCategoriesByParent,
+  getCategory,
+  type CategoryId,
+  type NewCategory,
+} from "$lib/server/db/category";
+import { IntegrityError } from "$lib/server/db/error";
+
+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 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/directory.ts

@@ -8,11 +8,12 @@ import {
   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: "root" | number) => {
+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");