// Smoke test for the UI server: bundle mode serves /index.html,
// disk mode serves /app.js, /_ui/overview returns structured JSON.
// Run with: deno run --allow-all test/ui-server.smoke.ts

import { UiServer } from '../ts/ui/server.ts';
import { ContainerManager } from '../ts/containers/container-manager.ts';
import { ClusterManager } from '../ts/cluster/cluster-manager.ts';

async function probe(source: 'bundle' | 'disk', port: number): Promise<void> {
  const cm = new ContainerManager();
  const cluster = new ClusterManager();
  cluster.configure({
    enabled: false,
    nodeName: 'test-node',
    role: 'standalone',
    bindHost: '127.0.0.1',
    gossipPort: 7946,
    heartbeatIntervalMs: 5000,
    seedNodes: [],
  });

  const server = new UiServer(
    { enabled: true, port, host: '127.0.0.1', assetSource: source },
    cm,
    cluster,
  );
  await server.start();

  try {
    const index = await fetch(`http://127.0.0.1:${port}/`);
    const indexBody = await index.text();
    if (!index.ok || !indexBody.includes('ModelGrid')) {
      throw new Error(`[${source}] index.html missing expected content (status=${index.status})`);
    }

    const app = await fetch(`http://127.0.0.1:${port}/app.js`);
    const appBody = await app.text();
    if (!app.ok || !appBody.includes('ModelGrid UI')) {
      throw new Error(`[${source}] app.js missing expected content (status=${app.status})`);
    }

    const spa = await fetch(`http://127.0.0.1:${port}/cluster/nodes`);
    const spaBody = await spa.text();
    if (!spa.ok || !spaBody.includes('ModelGrid')) {
      throw new Error(`[${source}] SPA fallback did not return index.html (status=${spa.status})`);
    }

    const overview = await fetch(`http://127.0.0.1:${port}/_ui/overview`);
    const data = await overview.json();
    if (!overview.ok || data.node?.name !== 'test-node' || !data.health?.status) {
      throw new Error(`[${source}] /_ui/overview unexpected: ${JSON.stringify(data)}`);
    }

    const missing = await fetch(`http://127.0.0.1:${port}/nope.png`);
    if (missing.status !== 404) {
      throw new Error(`[${source}] expected 404 for missing asset, got ${missing.status}`);
    }

    console.log(`ok: ${source} mode — index, app.js, SPA fallback, /_ui/overview, 404`);
  } finally {
    await server.stop();
  }
}

await probe('bundle', 18081);
await probe('disk', 18082);
console.log('UI server smoke test passed');