begin extracting user controllers out of routes

src/pages/api/users/register.ts

@@ -1,65 +1,24 @@
-import { setLoginSession } from '@/config/auth/session';
-import { NextApiRequest, NextApiResponse } from 'next';
+import { NextApiResponse } from 'next';
 import { z } from 'zod';
-import ServerError from '@/config/util/ServerError';
 import { createRouter } from 'next-connect';
-import createNewUser from '@/services/User/createNewUser';
 import { CreateUserValidationSchema } from '@/services/User/schema/CreateUserValidationSchemas';
 import NextConnectOptions from '@/config/nextConnect/NextConnectOptions';
-import findUserByUsername from '@/services/User/findUserByUsername';
-import findUserByEmail from '@/services/User/findUserByEmail';
 import validateRequest from '@/config/nextConnect/middleware/validateRequest';
 import APIResponseValidationSchema from '@/validation/APIResponseValidationSchema';
-
-import sendConfirmationEmail from '@/services/User/sendConfirmationEmail';
-
-interface RegisterUserRequest extends NextApiRequest {
-  body: z.infer<typeof CreateUserValidationSchema>;
-}
-
-const registerUser = async (req: RegisterUserRequest, res: NextApiResponse) => {
-  const [usernameTaken, emailTaken] = await Promise.all([
-    findUserByUsername(req.body.username),
-    findUserByEmail(req.body.email),
-  ]);
-
-  if (usernameTaken) {
-    throw new ServerError(
-      'Could not register a user with that username as it is already taken.',
-      409,
-    );
-  }
-
-  if (emailTaken) {
-    throw new ServerError(
-      'Could not register a user with that email as it is already taken.',
-      409,
-    );
-  }
-
-  const user = await createNewUser(req.body);
-
-  await setLoginSession(res, {
-    id: user.id,
-    username: user.username,
-  });
-
-  await sendConfirmationEmail(user);
-
-  res.status(201).json({
-    success: true,
-    statusCode: 201,
-    message: 'User registered successfully.',
-    payload: user,
-  });
-};
+import { registerUser } from '@/controllers/auth';
+import { RegisterUserRequest } from '@/controllers/auth/types';
 
 const router = createRouter<
   RegisterUserRequest,
   NextApiResponse<z.infer<typeof APIResponseValidationSchema>>
 >();
 
-router.post(validateRequest({ bodySchema: CreateUserValidationSchema }), registerUser);
+router.post(
+  validateRequest({
+    bodySchema: CreateUserValidationSchema,
+  }),
+  registerUser,
+);
 
 const handler = router.handler(NextConnectOptions);
 export default handler;