import { NestFactory } from '@nestjs/core';
import { ConfigService } from '@nestjs/config';
import { ValidationPipe, Logger } from '@nestjs/common';
import { NestExpressApplication } from '@nestjs/platform-express';
import { join } from 'path';
import { AppModule } from './app.module';
import { HttpExceptionFilter } from './common/filters/http-exception.filter';
import { TransformInterceptor } from './common/interceptors/transform.interceptor';

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

  app.setGlobalPrefix('api');

  // Serve uploaded files statically
  app.useStaticAssets(join(process.cwd(), 'uploads'), { prefix: '/uploads/' });

  app.enableCors({
    origin: (origin, callback) => {
      // Allow requests with no origin (mobile apps, curl, etc)
      if (!origin) return callback(null, true);
      // Allow all officialsite.kr subdomains and localhost
      if (
        origin.endsWith('.officialsite.kr') ||
        origin.includes('localhost') ||
        origin.includes('127.0.0.1')
      ) {
        return callback(null, true);
      }
      callback(null, false);
    },
    credentials: true,
    methods: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'],
    allowedHeaders: ['Content-Type', 'Authorization', 'Accept'],
  });

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

  app.useGlobalFilters(new HttpExceptionFilter());
  app.useGlobalInterceptors(new TransformInterceptor());

  const port = configService.get<number>('PORT', 3006);
  await app.listen(port);
  logger.log(`FreeFlow API running on http://localhost:${port}/api`);
}
bootstrap();