// Dev orchestrator: starts ng serve (UI hot reload), waits for it, then runs
// `electrobun dev --watch` (relaunches the app when bun-side code changes).
const DEV_SERVER_URL = "http://localhost:4200";

const ui = Bun.spawn(["bun", "run", "--cwd", "ui", "start"], {
	stdout: "inherit",
	stderr: "inherit",
});

async function waitForServer(url: string, timeoutMs = 90_000): Promise<void> {
	const deadline = Date.now() + timeoutMs;
	while (Date.now() < deadline) {
		try {
			await fetch(url, { method: "HEAD" });
			return;
		} catch {
			await Bun.sleep(300);
		}
	}
	throw new Error(`Dev server at ${url} did not come up in ${timeoutMs}ms`);
}

console.log(`Waiting for Angular dev server at ${DEV_SERVER_URL} ...`);
await waitForServer(DEV_SERVER_URL);
console.log("Angular dev server is up, launching Electrobun ...");

const app = Bun.spawn(["bunx", "electrobun", "dev", "--watch"], {
	stdout: "inherit",
	stderr: "inherit",
	env: { ...process.env, DEV_SERVER_URL },
});

function shutdown() {
	ui.kill();
	app.kill();
	process.exit(0);
}
process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);

await app.exited;
shutdown();