Basic success

src/handlers/folders.ts

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+import { Env, Folder, FolderResponse } from '../types';
+import { StorageService } from '../services/storage';
+import { jsonResponse, errorResponse } from '../utils/response';
+import { generateUUID } from '../utils/uuid';
+
+// Convert internal folder to API response format
+function folderToResponse(folder: Folder): FolderResponse {
+  return {
+    id: folder.id,
+    name: folder.name,
+    revisionDate: folder.updatedAt,
+    object: 'folder',
+  };
+}
+
+// GET /api/folders
+export async function handleGetFolders(request: Request, env: Env, userId: string): Promise<Response> {
+  const storage = new StorageService(env.VAULT);
+  const folders = await storage.getAllFolders(userId);
+
+  return jsonResponse({
+    data: folders.map(folderToResponse),
+    object: 'list',
+    continuationToken: null,
+  });
+}
+
+// GET /api/folders/:id
+export async function handleGetFolder(request: Request, env: Env, userId: string, id: string): Promise<Response> {
+  const storage = new StorageService(env.VAULT);
+  const folder = await storage.getFolder(id);
+
+  if (!folder || folder.userId !== userId) {
+    return errorResponse('Folder not found', 404);
+  }
+
+  return jsonResponse(folderToResponse(folder));
+}
+
+// POST /api/folders
+export async function handleCreateFolder(request: Request, env: Env, userId: string): Promise<Response> {
+  const storage = new StorageService(env.VAULT);
+
+  let body: { name?: string };
+  try {
+    body = await request.json();
+  } catch {
+    return errorResponse('Invalid JSON', 400);
+  }
+
+  if (!body.name) {
+    return errorResponse('Name is required', 400);
+  }
+
+  const now = new Date().toISOString();
+  const folder: Folder = {
+    id: generateUUID(),
+    userId: userId,
+    name: body.name,
+    createdAt: now,
+    updatedAt: now,
+  };
+
+  await storage.saveFolder(folder);
+
+  return jsonResponse(folderToResponse(folder), 200);
+}
+
+// PUT /api/folders/:id
+export async function handleUpdateFolder(request: Request, env: Env, userId: string, id: string): Promise<Response> {
+  const storage = new StorageService(env.VAULT);
+  const folder = await storage.getFolder(id);
+
+  if (!folder || folder.userId !== userId) {
+    return errorResponse('Folder not found', 404);
+  }
+
+  let body: { name?: string };
+  try {
+    body = await request.json();
+  } catch {
+    return errorResponse('Invalid JSON', 400);
+  }
+
+  if (body.name) {
+    folder.name = body.name;
+  }
+  folder.updatedAt = new Date().toISOString();
+
+  await storage.saveFolder(folder);
+
+  return jsonResponse(folderToResponse(folder));
+}
+
+// DELETE /api/folders/:id
+export async function handleDeleteFolder(request: Request, env: Env, userId: string, id: string): Promise<Response> {
+  const storage = new StorageService(env.VAULT);
+  const folder = await storage.getFolder(id);
+
+  if (!folder || folder.userId !== userId) {
+    return errorResponse('Folder not found', 404);
+  }
+
+  await storage.deleteFolder(id, userId);
+
+  return new Response(null, { status: 204 });
+}