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

async function bootstrap() {
  const certsDir = join(__dirname, '..', 'certs');
  const httpsOptions = {
    key: fs.readFileSync(join(certsDir, 'local-key.pem')),
    cert: fs.readFileSync(join(certsDir, 'local-cert.pem')),
  };

  // const app = await NestFactory.create<NestExpressApplication>(AppModule);
  // const app = await NestFactory.create<NestExpressApplication>(AppModule, {
  //   httpsOptions, // <-- Let Nest bind HTTPS
  // });

  const app = await NestFactory.create<NestExpressApplication>(AppModule);
  app.useGlobalPipes(
    new ValidationPipe({
      whitelist: true, // strips extra fields
      forbidNonWhitelisted: true, // rejects unknown fields
      transform: true, // converts types (e.g. string -> number/date)
    }),
  );

  app.enableCors({
    origin: 'http://localhost:4200', // your Angular app URL
    credentials: true,
  });
  app.setGlobalPrefix('api');

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

  app.useStaticAssets(angularDistPath);
  app.setBaseViewsDir(angularDistPath);
  app.setViewEngine('html');

  app.use(
    session({
      secret: 'your-secret',
      resave: false,
      saveUninitialized: false,
      cookie: {
        httpOnly: true,           // browser can’t access cookie via JS
        secure: false,            // set true if using HTTPS
        sameSite: 'lax',          // allow sending cookies cross-origin on localhost
        maxAge: 24 * 60 * 60 * 1000, // 1 day
      },
    }),
  );


  app.use((req, res, next) => {
    const isStaticAsset = req.url.includes('.');
    const isApiCall = req.url.startsWith('/api') || req.method !== 'GET';
    if (isStaticAsset || isApiCall) return next();
    res.sendFile(indexPath);
  });

  await app.listen(4000, '0.0.0.0');
  console.log(`🚀 HTTPS server running at ${serverConfig.exposedUrl}`);

}
bootstrap();