import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { AllExceptionsFilter } from './common/filters/all-exceptions.filter';
import { ResponseInterceptor } from './common/interceptors/response.interceptor';
import { RequestIdInterceptor } from './common/interceptors/request-id.interceptor';
import { ValidationPipe } from './common/pipes/validation.pipe';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
import { Logger } from '@nestjs/common';
import helmet from 'helmet';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  const logger = new Logger('Bootstrap');

  app.use(helmet());
  const configuredOrigins = process.env.CORS_ORIGINS
    ?.split(',')
    .map((origin) => origin.trim())
    .filter(Boolean);
  app.enableCors({
    origin:
      configuredOrigins?.length
        ? configuredOrigins
        : process.env.NODE_ENV === 'production'
          ? false
          : true,
    credentials: true,
  });
  app.enableShutdownHooks();
  app.setGlobalPrefix('api');

  app.useGlobalFilters(new AllExceptionsFilter());
  app.useGlobalInterceptors(new RequestIdInterceptor(), new ResponseInterceptor());
  app.useGlobalPipes(new ValidationPipe());

  // Swagger
  const config = new DocumentBuilder()
    .setTitle('Telegram User Gateway API')
    .setDescription('REST API for managing Telegram user accounts via TDLib')
    .setVersion('1.0')
    .addBearerAuth()
    .addApiKey({ type: 'apiKey', name: 'x-tenant-id', in: 'header' }, 'tenant-id')
    .build();

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

  const port = process.env.PORT || 3000;
  await app.listen(port);
  logger.log(`Application running on http://localhost:${port}`);
  logger.log(`Swagger docs at http://localhost:${port}/api/docs`);
}

bootstrap();