Refatoração do login page

src/auth/users/change-password.service.ts

@@ -0,0 +1,23 @@
+import { Injectable, NotFoundException } from '@nestjs/common';
+import { UserRepository } from '../users/UserRepository';
+import md5 = require('md5');
+
+@Injectable()
+export class ChangePasswordService {
+  constructor(private readonly userRepository: UserRepository) {}
+
+  async execute(userId: number, oldPassword: string, newPassword: string) {
+    const current = await this.userRepository.findByIdAndPassword(
+      userId,
+      md5(oldPassword).toUpperCase(),
+    );
+
+    if (!current) {
+      throw new NotFoundException('Usuário não encontrado ou senha inválida');
+    }
+
+    const newPasswordHash = md5(newPassword).toUpperCase();
+    await this.userRepository.updatePassword(userId, newPasswordHash);
+    return current;
+  }
+}