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

function configureCors(app: Awaited<ReturnType<typeof NestFactory.create>>) {
  const raw = process.env.CORS_ORIGINS?.trim();
  if (raw) {
    const origins = raw.split(',').map((o) => o.trim()).filter(Boolean);
    app.enableCors({ origin: origins, credentials: true });
    return;
  }
  if (process.env.NODE_ENV !== 'production') {
    app.enableCors({ origin: true, credentials: true });
  }
}

async function bootstrap() {
  const app = await NestFactory.create<NestExpressApplication>(AppModule);
  const uploadDir = process.env.UPLOAD_DIR ?? 'uploads';
  app.useStaticAssets(join(process.cwd(), uploadDir), { prefix: '/uploads' });
  configureCors(app);
  app.useGlobalPipes(
    new ValidationPipe({
      forbidNonWhitelisted: true,
      transform: true,
      whitelist: true,
    }),
  );
  app.useGlobalFilters(new TypeOrmExceptionFilter());

  const swaggerConfig = new DocumentBuilder()
    .setTitle('Montime API')
    .setDescription('Local services super app API')
    .setVersion('1.0')
    .addBearerAuth(
      {
        type: 'http',
        scheme: 'bearer',
        bearerFormat: 'JWT',
      },
      'bearer',
    )
    .addSecurityRequirements('bearer')
    .build();

  const swaggerDocument = SwaggerModule.createDocument(app, swaggerConfig);
  SwaggerModule.setup('docs', app, swaggerDocument, {
    swaggerOptions: {
      persistAuthorization: true,
    },
  });

  await app.listen(process.env.PORT ?? 3000);
}
bootstrap();