import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { Logger, ValidationPipe } from '@nestjs/common';

async function bootstrap() {
  const logger = new Logger('Bootstrap');
  logger.log('Starting application...');

  const app = await NestFactory.create(AppModule, {
    logger: ['error', 'warn', 'log', 'debug', 'verbose'], // Enable all log levels
  });
  
  logger.log('Configuring application...');

  // Enable validation with detailed error messages
  app.useGlobalPipes(new ValidationPipe({
    transform: true,
    whitelist: true,
    forbidNonWhitelisted: true,
    enableDebugMessages: true, // Add detailed validation error messages
    validationError: {
      target: false,
      value: false,
    },
  }));

  // Enable CORS with credentials
  app.enableCors({
    origin: true, // or specify your frontend URL
    credentials: true,
    methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
    allowedHeaders: ['Content-Type', 'Authorization'],
  });

  const port = process.env.PORT || 3000;
  logger.log(`Starting server on port ${port}...`);
  
  await app.listen(port);
  logger.log(`Application is running on: ${await app.getUrl()}`);
}

process.on('unhandledRejection', (reason, promise) => {
  console.error('Unhandled Rejection at:', promise, 'reason:', reason);
});

bootstrap();