import express from "express";
import ViteExpress from "vite-express";
import cors from "cors";
import dotenv from "dotenv";
import apiRoutes from "./server/api/index.js";

// Load .env.local first, then fall back to .env
dotenv.config({ path: '.env.local' });
dotenv.config();

const app = express();

// CORS configuration for split deployment
// In combined mode, same-origin requests don't need CORS
const allowedOrigins = process.env.ALLOWED_ORIGINS?.split(",") || [];
if (allowedOrigins.length > 0) {
  app.use(cors({
    origin: allowedOrigins,
    credentials: true,
  }));
}

app.use(express.json());

// API routes
app.use("/api", apiRoutes);

// Check if running in API-only mode (split deployment)
const apiOnly = process.env.API_ONLY === "true";

if (apiOnly) {
  // API-only mode: no static file serving
  app.listen(process.env.PORT || 3000, () => {
    console.log(`API server running on port ${process.env.PORT || 3000}`);
  });
} else {
  // Combined mode: Vite handles static files + SPA
  ViteExpress.listen(app, process.env.PORT || 3001, () => {
    console.log(`Server running on port ${process.env.PORT || 3001}`);
  });
}