import { ValidationPipe } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import { NestFactory } from '@nestjs/core';
import { NestExpressApplication } from '@nestjs/platform-express';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
import helmet from 'helmet';
import { join } from 'path';
import { AppModule } from './app.module';
import { AllExceptionsFilter } from './common/filters/all-exceptions.filter';
import { ResponseInterceptor } from './common/interceptors/response.interceptor';
import { PrismaService } from './prisma/prisma.service';

async function bootstrap() {
  const app = await NestFactory.create<NestExpressApplication>(AppModule);
  const configService = app.get(ConfigService);

  // Security Headers
  app.use(
    helmet({
      crossOriginResourcePolicy: { policy: 'cross-origin' },
    }),
  );

  // CORS
  const adminOrigin = configService.get<string>('CORS_ADMIN_ORIGIN', 'http://localhost:5173');
  const clientOrigin = configService.get<string>('CORS_CLIENT_ORIGIN', 'http://localhost:5174');
  app.enableCors({
    origin: [adminOrigin, clientOrigin],
    credentials: true,
  });

  // Global Prefix
  app.setGlobalPrefix('api');

  // Serve static uploads
  const uploadRoot = configService.get<string>('STORAGE_LOCAL_ROOT', './uploads');
  app.useStaticAssets(join(process.cwd(), uploadRoot), {
    prefix: '/uploads/',
  });

  // Global Validation Pipe
  app.useGlobalPipes(
    new ValidationPipe({
      whitelist: true,
      forbidNonWhitelisted: false,
      transform: true,
      transformOptions: {
        enableImplicitConversion: true,
      },
    }),
  );

  // Global Filter & Interceptor
  app.useGlobalFilters(new AllExceptionsFilter());
  app.useGlobalInterceptors(new ResponseInterceptor());

  // Prisma Shutdown Hooks
  const prismaService = app.get(PrismaService);
  await prismaService.enableShutdownHooks(app);

  // Swagger Documentation
  const swaggerConfig = new DocumentBuilder()
    .setTitle('Lucky Wheel API')
    .setDescription('مستندات جامع وب‌سرویس سامانه گردونه شانس و قرعه‌کشی')
    .setVersion('1.0')
    .addBearerAuth(
      { type: 'http', scheme: 'bearer', bearerFormat: 'JWT', in: 'header' },
      'UserAuth',
    )
    .addBearerAuth(
      { type: 'http', scheme: 'bearer', bearerFormat: 'JWT', in: 'header' },
      'AdminAuth',
    )
    .build();

  const document = SwaggerModule.createDocument(app, swaggerConfig);
  SwaggerModule.setup('api/docs', app, document);

  const port = configService.get<number>('PORT', 3000);
  await app.listen(port);
  console.log(`Application is running on: http://localhost:${port}`);
  console.log(`Swagger documentation: http://localhost:${port}/api/docs`);
}

bootstrap();