feat: backend API NestJS + Prisma + JWT auth + todos los módulos

backend/src/auth/auth.service.ts

@@ -0,0 +1,69 @@
+import { Injectable, UnauthorizedException, ConflictException, BadRequestException } from '@nestjs/common';
+import { JwtService } from '@nestjs/jwt';
+import * as bcrypt from 'bcryptjs';
+import { PrismaService } from '../prisma/prisma.service';
+
+@Injectable()
+export class AuthService {
+  constructor(
+    private prisma: PrismaService,
+    private jwt: JwtService,
+  ) {}
+
+  async register(email: string, password: string, name: string) {
+    const existing = await this.prisma.users.findUnique({ where: { email } });
+    if (existing) throw new ConflictException('Email ya registrado');
+
+    const password_hash = await bcrypt.hash(password, 10);
+    const user = await this.prisma.users.create({
+      data: { email, password_hash, name, is_email_verified: true },
+    });
+
+    return this.generateToken(user);
+  }
+
+  async login(email: string, password: string) {
+    const user = await this.prisma.users.findUnique({ where: { email } });
+    if (!user || !user.password_hash) throw new UnauthorizedException('Credenciales inválidas');
+
+    const valid = await bcrypt.compare(password, user.password_hash);
+    if (!valid) throw new UnauthorizedException('Credenciales inválidas');
+
+    return this.generateToken(user);
+  }
+
+  async loginOrCreateByPhone(phone: string, name?: string) {
+    let user = await this.prisma.users.findUnique({ where: { phone } });
+    if (!user) {
+      user = await this.prisma.users.create({
+        data: { phone, name: name || phone, is_phone_verified: true },
+      });
+    }
+    return this.generateToken(user);
+  }
+
+  async me(userId: string) {
+    return this.prisma.users.findUnique({
+      where: { id: userId },
+      include: {
+        professionals: {
+          include: { schedules: true, payment_methods: true, specializations: true },
+        },
+        reputations: true,
+      },
+    });
+  }
+
+  private generateToken(user: any) {
+    const payload = { sub: user.id, email: user.email, phone: user.phone };
+    return {
+      access_token: this.jwt.sign(payload),
+      user: {
+        id: user.id,
+        email: user.email,
+        phone: user.phone,
+        name: user.name,
+      },
+    };
+  }
+}