import { assertEquals } from 'jsr:@std/assert@^1.0.0';
import { ClusterManager } from '../ts/cluster/cluster-manager.ts';
import { UiServer } from '../ts/ui/server.ts';

Deno.test('UiServer overview mirrors degraded API health semantics', async () => {
  const port = 20300 + Math.floor(Math.random() * 1000);
  const cluster = new ClusterManager();
  cluster.configure({
    enabled: false,
    nodeName: 'ui-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: 'disk' },
    {
      async getAllStatus() {
        return new Map([
          ['vllm-1', { running: false, health: 'unhealthy' }],
        ]);
      },
      async getAllAvailableModels() {
        return new Map();
      },
    } as never,
    cluster,
  );

  (server as unknown as {
    gpuDetector: { detectGpus: () => Promise<unknown[]> };
  }).gpuDetector = {
    async detectGpus() {
      return [{ id: 'nvidia-0' }];
    },
  };

  await server.start();

  try {
    const response = await fetch(`http://127.0.0.1:${port}/_ui/overview`);
    const body = await response.json();

    assertEquals(response.status, 200);
    assertEquals(body.health.status, 'degraded');
    assertEquals(body.health.reasons.includes('unhealthy_container'), true);
    assertEquals(body.health.reasons.includes('no_models_available'), true);
    assertEquals(body.node.name, 'ui-test-node');
  } finally {
    await server.stop();
  }
});