import { ValidationPipe, Logger } from '@nestjs/common';
import cookieParser from 'cookie-parser';
import { NestFactory } from '@nestjs/core';
import { ConfigService } from '@nestjs/config';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';

import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);

  const config = app.get(ConfigService);
  const logger = new Logger('Bootstrap');

  // enable cookie parser so req.cookies is populated
  app.use(cookieParser());

  app.setGlobalPrefix('');

  app.useGlobalPipes(
    new ValidationPipe({
      whitelist: true,
      transform: true,
      forbidNonWhitelisted: true,
    }),
  );

  // CORS configuration: only allow configured frontend origins and enable credentials
  const allowedOrigins: string[] = [];
  const frontend = config.get<string>('FRONTEND_URL');
  const prodFrontend = config.get<string>('PRODUCTION_FRONTEND_URL');
  if (frontend) allowedOrigins.push(frontend);
  if (prodFrontend) allowedOrigins.push(prodFrontend);

  app.enableCors({
    origin: allowedOrigins,
    credentials: true,
    methods: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'],
    allowedHeaders: [
      'Content-Type',
      'Authorization',
      'Accept',
      'Origin',
      'X-Requested-With',
    ],
  });

  const swaggerEnabled = config.get<string>('SWAGGER_ENABLED') === 'true';

  if (swaggerEnabled) {
    const swaggerConfig = new DocumentBuilder()
      .setTitle('RayLab Core API')
      .setDescription('RayLab Core REST API')
      .setVersion('1.0.0')
      .addBearerAuth()
      .build();

    const document = SwaggerModule.createDocument(app, swaggerConfig);

    SwaggerModule.setup('ApiList', app, document);
  }

    const port = config.get<number>('PORT') || 3000;

  logger.log(`Allowed CORS origins: ${JSON.stringify(allowedOrigins)}`);
  logger.log(`Server listening on port ${port}`);

  await app.listen(port);

  logger.log(`Server running on http://localhost:${port}`);
}

bootstrap();