import { NestFactory } from '@nestjs/core';
import { NestExpressApplication } from '@nestjs/platform-express';
import { AppModule } from './app.module';
import { join } from 'path';
import { ValidationPipe } from '@nestjs/common';
import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
import { HttpExceptionFilter } from './common/filters/http-exception.filter';
import helmet from 'helmet';

async function bootstrap() {
  const app = await NestFactory.create<NestExpressApplication>(AppModule);
  
  // Serve static uploads folder
  app.useStaticAssets(join(process.cwd(), 'uploads'), {
    prefix: '/uploads/',
  });
  
  app.use(helmet({
    contentSecurityPolicy: false, // Avoid blocking Swagger UI scripts and assets
  }));

  app.setGlobalPrefix('api');
  
  app.enableCors({
    origin: true,
    credentials: true,
  });
  
  app.useGlobalPipes(new ValidationPipe({ 
    transform: true, 
    whitelist: true,
    forbidNonWhitelisted: true,
  }));
  app.useGlobalFilters(new HttpExceptionFilter());

  const config = new DocumentBuilder()
    .setTitle('Canina Iran API')
    .setDescription('API Documentation for Canina Iran Pet Health & Supplement Platform')
    .setVersion('1.0.0')
    .addBearerAuth()
    .build();
    
  const document = SwaggerModule.createDocument(app, config);
  SwaggerModule.setup('api/docs', app, document);

  await app.listen(process.env.PORT ?? 4001);
}
bootstrap();