import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { serverConfig } from './config';
import * as session from 'express-session';
import { join } from 'path';
import { NestExpressApplication } from '@nestjs/platform-express';
import * as fs from 'fs';

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

  // ✅ API prefix
  app.setGlobalPrefix('api'); // <<==== All controllers now under /api/*

  const angularDistPath = join(__dirname, '..', '..', 'web-app', 'dist', 'mobile-auth-web-app', 'browser');
  const indexPath = join(angularDistPath, 'index.html');

  console.log('✅ Angular path:', angularDistPath);
  console.log('✅ index.html exists:', fs.existsSync(indexPath));

  // ✅ Now serve Angular static files
  app.useStaticAssets(angularDistPath);
  app.setBaseViewsDir(angularDistPath);
  app.setViewEngine('html');

  app.use(
    session({
      secret: 'your-secret',
      resave: false,
      saveUninitialized: false,
    }),
  );

  // ✅ Angular fallback: only for non-API, non-static requests
  app.use((req, res, next) => {
    const isStaticAsset = req.url.includes('.');
    const isApiCall = req.url.startsWith('/api') || req.method !== 'GET';

    if (isStaticAsset || isApiCall) {
      return next();
    }

    console.log('📦 Angular fallback hit for:', req.url);
    res.sendFile(indexPath);
  });

  await app.listen(process.env.PORT ?? 3000);
  console.log(`🚀 Server running at http://localhost:3000`);
  console.log(`🌐 Exposed at: ${serverConfig.exposedUrl}`);
}

bootstrap();