import {
  CopilotKitIntelligence,
  CopilotRuntime,
  InMemoryAgentRunner,
  createCopilotEndpoint,
} from "@copilotkit/runtime/v2";
import { BuiltInAgent } from "@copilotkit/runtime/v2";
import { MCPAppsMiddleware } from "@ag-ui/mcp-apps-middleware";
import { handle } from "hono/vercel";

const middlewares = [
  new MCPAppsMiddleware({
    mcpServers: [
      {
        type: "http",
        url: "http://localhost:3108/mcp",
        serverId: "threejs",
      },
    ],
  }),
];

const agent = new BuiltInAgent({
  model: "openai/gpt-4o",
  prompt: "You are a helpful assistant.",
});

for (const middleware of middlewares) {
  agent.use(middleware);
}

const runtime = new CopilotRuntime({
  agents: {
    default: agent,
  },
  // --- copilotkit:intelligence (remove this block to opt out) ---
  ...(process.env.COPILOTKIT_LICENSE_TOKEN
    ? {
        intelligence: new CopilotKitIntelligence({
          apiKey: process.env.INTELLIGENCE_API_KEY ?? "",
          apiUrl: process.env.INTELLIGENCE_API_URL ?? "http://localhost:4201",
          wsUrl:
            process.env.INTELLIGENCE_GATEWAY_WS_URL ?? "ws://localhost:4401",
        }),
        // Demo stub — replace with your own auth-derived user identity (e.g. OIDC)
        // before any multi-user deployment, or all users share one thread history.
        identifyUser: () => ({ id: "demo-user", name: "Demo User" }),
        licenseToken: process.env.COPILOTKIT_LICENSE_TOKEN,
      }
    : { runner: new InMemoryAgentRunner() }),
  // --- /copilotkit:intelligence ---
});

const app = createCopilotEndpoint({
  runtime,
  basePath: "/api/copilotkit",
});

export const GET = handle(app);
export const POST = handle(app);
export const PATCH = handle(app);
export const DELETE = handle(app);