import express from "express";
import { createServer } from "http";
import path from "path";
import { fileURLToPath } from "url";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const DEPLOY_PREFIX = "/x9/v2";

async function startServer() {
  const app = express();
  const server = createServer(app);

  const distRoot = path.resolve(__dirname, "..", "dist");
  const modernPath = path.join(distRoot, "modern");
  const legacyPath = path.join(distRoot, "legacy");

  app.use(`${DEPLOY_PREFIX}/modern`, express.static(modernPath));
  app.use(`${DEPLOY_PREFIX}/legacy`, express.static(legacyPath));
  app.use(DEPLOY_PREFIX, express.static(distRoot));

  const sendModernSpa = (_req: express.Request, res: express.Response) => {
    res.sendFile(path.join(modernPath, "i.modern.html"));
  };
  const sendLegacySpa = (_req: express.Request, res: express.Response) => {
    res.sendFile(path.join(legacyPath, "i.legacy.html"));
  };

  app.get(`${DEPLOY_PREFIX}/modern/*`, sendModernSpa);
  app.get(`${DEPLOY_PREFIX}/legacy/*`, sendLegacySpa);

  app.get([DEPLOY_PREFIX, `${DEPLOY_PREFIX}/`, `${DEPLOY_PREFIX}/i.html`], (_req, res) => {
    res.sendFile(path.join(distRoot, "i.html"));
  });

  app.get("*", (_req, res) => {
    res.redirect(302, `${DEPLOY_PREFIX}/i.html`);
  });

  const port = process.env.PORT || 3000;

  server.listen(port, () => {
    console.log(`Server running on http://localhost:${port}${DEPLOY_PREFIX}/i.html`);
  });
}

startServer().catch(console.error);