server.ts

/**
 * Custom Bun production server for TanStack Start.
 *
 * The built server.js only handles SSR and API routes — it does NOT serve
 * static files.  This wrapper intercepts requests and checks if the requested
 * path exists in `dist/client` first.  If it does, it serves the file directly.
 * Otherwise it delegates to the TanStack Start handler.
 */

import { statSync } from "node:fs";
import { join } from "node:path";

// Import the TanStack Start server handler
// @ts-expect-error - This file is generated by the build and might not have types
import app from "./dist/server/server.js";

// Determine directory
const CLIENT_DIR = join(import.meta.dirname, "dist", "client");
const PORT = Number(process.env.PORT) || 3000;

/**
 * Try to resolve a static file from dist/client.
 * Returns the Bun File object if found, null otherwise.
 */
function resolveStaticFile(pathname: string): string | null {
  // Prevent path traversal
  const safePath = join(CLIENT_DIR, pathname);
  if (!safePath.startsWith(CLIENT_DIR)) return null;

  try {
    const stat = statSync(safePath);
    if (stat.isFile()) return safePath;
  } catch {
    // File not found, that's fine
  }
  return null;
}

const server = Bun.serve({
  port: PORT,
  hostname: "0.0.0.0", // Explicitly bind to all interfaces for Docker
  async fetch(request: Request) {
    const url = new URL(request.url);

    // 1. Proxy PocketBase API and Dashboard requests
    // This allows the app to work on a single port (3000)
    if (url.pathname.startsWith("/api/") || url.pathname.startsWith("/_/")) {
      const pbUrl = new URL(url.pathname + url.search, "http://127.0.0.1:8090");
      return fetch(pbUrl, {
        method: request.method,
        headers: request.headers,
        body: request.body,
        redirect: "manual",
      });
    }

    // 2. Try to serve static file from dist/client
    const staticPath = resolveStaticFile(url.pathname);
    if (staticPath) {
      return new Response(Bun.file(staticPath));
    }

    // 3. Delegate to TanStack Start SSR handler
    return (app as { fetch: (req: Request) => Promise<Response> }).fetch(request);
  },
});

console.log(`Started server: http://0.0.0.0:${server.port}`);