main.ts

import { NestFactory } from "@nestjs/core";
import { AppModule } from "./app.module";
import { ValidationPipe } from "@nestjs/common";
import { ConfigService } from "@nestjs/config";

/**
 * Bootstrap the NestJS application
 *
 * Features:
 * - Port 3001 (configurable via PORT env var)
 * - CORS enabled for frontend (localhost:3000)
 * - Global validation pipe for DTOs
 */
async function bootstrap() {
  const app = await NestFactory.create(AppModule);

  // Get config service
  const configService = app.get(ConfigService);

  // Enable CORS for frontend
  const corsOrigin = configService.get("app.corsOrigin");
  app.enableCors({
    origin: corsOrigin,
    credentials: true,
    methods: ["GET", "POST", "PUT", "DELETE", "OPTIONS", "PATCH"],
    allowedHeaders: [
      "Content-Type",
      "Authorization",
      "X-Correlation-ID",
      "X-Request-ID",
    ],
    exposedHeaders: ["X-Correlation-ID"],
  });

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

  // Get port from config
  const port = configService.get("app.port");

  await app.listen(port);

  const stellarConfig = configService.get("stellar");
  const network = stellarConfig?.networkPassphrase?.includes("Test")
    ? "testnet"
    : "mainnet";

  console.log(`🚀 Invoisio Backend running on: http://localhost:${port}`);
  console.log(`📡 Health check: http://localhost:${port}/health`);
  console.log(`🧾 Invoices API: http://localhost:${port}/invoices`);
  console.log(`🌐 Stellar Network: ${network}`);
  console.log(`\n✨ Ready for Stellar payments!`);
}

bootstrap();