refactor(server): user core (#13063)

server/src/utils/user.ts

@@ -0,0 +1,35 @@
+import { BadRequestException } from '@nestjs/common';
+import sanitize from 'sanitize-filename';
+import { SALT_ROUNDS } from 'src/constants';
+import { UserEntity } from 'src/entities/user.entity';
+import { ICryptoRepository } from 'src/interfaces/crypto.interface';
+import { IUserRepository } from 'src/interfaces/user.interface';
+
+type RepoDeps = { userRepo: IUserRepository; cryptoRepo: ICryptoRepository };
+
+export const createUser = async (
+  { userRepo, cryptoRepo }: RepoDeps,
+  dto: Partial<UserEntity> & { email: string },
+): Promise<UserEntity> => {
+  const user = await userRepo.getByEmail(dto.email);
+  if (user) {
+    throw new BadRequestException('User exists');
+  }
+
+  if (!dto.isAdmin) {
+    const localAdmin = await userRepo.getAdmin();
+    if (!localAdmin) {
+      throw new BadRequestException('The first registered account must the administrator.');
+    }
+  }
+
+  const payload: Partial<UserEntity> = { ...dto };
+  if (payload.password) {
+    payload.password = await cryptoRepo.hashBcrypt(payload.password, SALT_ROUNDS);
+  }
+  if (payload.storageLabel) {
+    payload.storageLabel = sanitize(payload.storageLabel.replaceAll('.', ''));
+  }
+
+  return userRepo.create(payload);
+};