feat: add Prisma ORM to backend with spaces migration and PrismaService

backend/package.json

@@ -6,7 +6,9 @@
     "build": "nest build",
     "start": "nest start",
     "start:dev": "nest start --watch",
-    "start:prod": "node dist/main"
+    "start:prod": "node dist/main",
+    "db:migrate": "prisma migrate deploy",
+    "db:generate": "prisma generate"
   },
   "dependencies": {
     "@nestjs/common": "^10.0.0",
@@ -14,6 +16,7 @@
     "@nestjs/jwt": "^10.0.0",
     "@nestjs/passport": "^10.0.0",
     "@nestjs/platform-express": "^10.0.0",
+    "@prisma/client": "^5.0.0",
     "passport": "^0.7.0",
     "passport-jwt": "^4.0.1",
     "reflect-metadata": "^0.1.13",
@@ -24,6 +27,7 @@
     "@nestjs/schematics": "^10.0.0",
     "@types/node": "^20.0.0",
     "@types/passport-jwt": "^4.0.0",
+    "prisma": "^5.0.0",
     "typescript": "^5.0.0"
   }
 }

backend/prisma/migrations/20260615000000_init/migration.sql

@@ -0,0 +1,17 @@
+-- CreateTable
+CREATE TABLE "reservas" (
+    "id" TEXT NOT NULL,
+    "resourceId" TEXT NOT NULL,
+    "resourceName" TEXT NOT NULL,
+    "date" TEXT NOT NULL,
+    "startTime" TEXT NOT NULL,
+    "endTime" TEXT NOT NULL,
+    "author" TEXT NOT NULL,
+    "notes" TEXT,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "reservas_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "reservas_resourceName_date_startTime_key" ON "reservas"("resourceName", "date", "startTime");

backend/prisma/migrations/migration_lock.toml

@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "postgresql"

backend/prisma/schema.prisma

@@ -0,0 +1,23 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+model Reserva {
+  id           String   @id @default(cuid())
+  resourceId   String
+  resourceName String
+  date         String   // "YYYY-MM-DD"
+  startTime    String   // "HH:mm"
+  endTime      String   // "HH:mm"
+  author       String
+  notes        String?
+  createdAt    DateTime @default(now())
+
+  @@unique([resourceName, date, startTime])
+  @@map("reservas")
+}

backend/src/app.module.ts

@@ -1,4 +1,5 @@
 import { Module } from '@nestjs/common';
+import { PrismaModule } from './prisma/prisma.module';
 import { AuthModule } from './auth/auth.module';
 import { CmsModule } from './cms/cms.module';
 import { DirectoryModule } from './directory/directory.module';
@@ -8,6 +9,7 @@ import { TicketingModule } from './ticketing/ticketing.module';
 
 @Module({
   imports: [
+    PrismaModule,
     AuthModule,
     CmsModule,
     DirectoryModule,
@@ -17,3 +19,4 @@ import { TicketingModule } from './ticketing/ticketing.module';
   ],
 })
 export class AppModule {}
+

backend/src/prisma/prisma.module.ts

@@ -0,0 +1,9 @@
+import { Global, Module } from '@nestjs/common';
+import { PrismaService } from './prisma.service';
+
+@Global()
+@Module({
+  providers: [PrismaService],
+  exports: [PrismaService],
+})
+export class PrismaModule {}

backend/src/prisma/prisma.service.ts

@@ -0,0 +1,16 @@
+import { Injectable, OnModuleInit, OnModuleDestroy } from '@nestjs/common';
+import { PrismaClient } from '@prisma/client';
+
+@Injectable()
+export class PrismaService
+  extends PrismaClient
+  implements OnModuleInit, OnModuleDestroy
+{
+  async onModuleInit() {
+    await this.$connect();
+  }
+
+  async onModuleDestroy() {
+    await this.$disconnect();
+  }
+}

backend/src/spaces/spaces.controller.ts

@@ -19,7 +19,7 @@ export class SpacesController {
    * Devuelve todas las reservas (opcionalmente filtradas por fecha)
    */
   @Get()
-  findAll(@Query('date') date?: string) {
+  async findAll(@Query('date') date?: string) {
     return this.spacesService.findAll(date);
   }
 
@@ -28,7 +28,7 @@ export class SpacesController {
    * Crea una nueva reserva
    */
   @Post()
-  create(@Body() dto: CreateReservaDto) {
+  async create(@Body() dto: CreateReservaDto) {
     return this.spacesService.create(dto);
   }
 
@@ -37,8 +37,8 @@ export class SpacesController {
    * Elimina una reserva por ID
    */
   @Delete(':id')
-  delete(@Param('id') id: string) {
-    this.spacesService.delete(id);
+  async delete(@Param('id') id: string) {
+    await this.spacesService.delete(id);
     return { message: 'Reserva eliminada correctamente.' };
   }
 }

backend/src/spaces/spaces.module.ts

@@ -1,4 +1,9 @@
 import { Module } from '@nestjs/common';
+import { SpacesController } from './spaces.controller';
+import { SpacesService } from './spaces.service';
 
-@Module({})
+@Module({
+  controllers: [SpacesController],
+  providers: [SpacesService],
+})
 export class SpacesModule {}

backend/src/spaces/spaces.service.ts

@@ -1,26 +1,28 @@
-import { Injectable, ConflictException } from '@nestjs/common';
-import { CreateReservaDto, Reserva } from './reserva.dto';
+import { Injectable, ConflictException, NotFoundException } from '@nestjs/common';
+import { PrismaService } from '../prisma/prisma.service';
+import { CreateReservaDto } from './reserva.dto';
 
 @Injectable()
 export class SpacesService {
-  private reservas: Reserva[] = [];
-  private idCounter = 1;
+  constructor(private readonly prisma: PrismaService) {}
 
-  findAll(date?: string): Reserva[] {
-    if (date) {
-      return this.reservas.filter((r) => r.date === date);
-    }
-    return this.reservas;
+  async findAll(date?: string) {
+    return this.prisma.reserva.findMany({
+      where: date ? { date } : undefined,
+      orderBy: { createdAt: 'desc' },
+    });
   }
 
-  create(dto: CreateReservaDto): Reserva {
-    // Verificar conflicto: mismo recurso, mismo día, mismo horario de inicio
-    const conflict = this.reservas.find(
-      (r) =>
-        r.resourceName === dto.resourceName &&
-        r.date === dto.date &&
-        r.startTime === dto.startTime,
-    );
+  async create(dto: CreateReservaDto) {
+    const conflict = await this.prisma.reserva.findUnique({
+      where: {
+        resourceName_date_startTime: {
+          resourceName: dto.resourceName,
+          date: dto.date,
+          startTime: dto.startTime,
+        },
+      },
+    });
 
     if (conflict) {
       throw new ConflictException(
@@ -28,17 +30,16 @@ export class SpacesService {
       );
     }
 
-    const newReserva: Reserva = {
-      ...dto,
-      id: String(this.idCounter++),
-      createdAt: new Date().toISOString(),
-    };
-
-    this.reservas.unshift(newReserva);
-    return newReserva;
+    return this.prisma.reserva.create({ data: dto });
   }
 
-  delete(id: string): void {
-    this.reservas = this.reservas.filter((r) => r.id !== id);
+  async delete(id: string): Promise<void> {
+    const reserva = await this.prisma.reserva.findUnique({ where: { id } });
+
+    if (!reserva) {
+      throw new NotFoundException(`Reserva con id "${id}" no encontrada.`);
+    }
+
+    await this.prisma.reserva.delete({ where: { id } });
   }
 }