radiola-backend/src/main.ts

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

async function bootstrap() {
  const app = await NestFactory.create<NestExpressApplication>(AppModule);

  // Раздача сохранённых обложек треков (/covers/*.webp) — свой CDN
  const coversDir = process.env.COVERS_DIR || join(process.cwd(), 'data', 'covers');
  app.useStaticAssets(coversDir, {
    prefix: '/covers/',
    maxAge: '30d',
    immutable: true,
  });

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

  app.enableCors({
    origin: process.env.FRONTEND_URL || '*',
    credentials: true,
  });

  const config = new DocumentBuilder()
    .setTitle('radiOLA API')
    .setDescription('radiOLA backend API')
    .setVersion('0.1')
    .addBearerAuth()
    .build();
  const document = SwaggerModule.createDocument(app, config);
  SwaggerModule.setup('api', app, document);

  const port = process.env.PORT || 3000;
  await app.listen(port);
  console.log(`Application is running on: http://localhost:${port}`);
}
bootstrap();