import { spawn } from "child_process";

async function test() {
  console.log("Starting MCP server...");
  const mcp = spawn("bun", ["index.ts"], {
    cwd: "/home/ti/git/homaroma/apps/mcp-server",
    env: { ...process.env, MCP_BACKEND_URL: "http://localhost:3051/api" }
  });

  mcp.stderr.on("data", (data) => {
    console.error(`[MCP STDERR] ${data}`);
  });

  let responseData = "";
  mcp.stdout.on("data", (data) => {
    responseData += data.toString();
  });

  const send = (msg: any) => {
    mcp.stdin.write(JSON.stringify(msg) + "\n");
  };

  const waitResponse = async (ms: number) => {
    await new Promise(resolve => setTimeout(resolve, ms));
    const lines = responseData.trim().split("\n");
    const lastLine = lines[lines.length - 1] ?? "";
    try {
      return JSON.parse(lastLine);
    } catch (e) {
      console.log("Failed to parse JSON line:", lastLine);
      return null;
    }
  };

  // 1. Send initialize
  console.log("Sending initialize request...");
  send({
    jsonrpc: "2.0",
    id: 1,
    method: "initialize",
    params: {
      protocolVersion: "2024-11-05",
      capabilities: {},
      clientInfo: { name: "test-client", version: "1.0.0" }
    }
  });

  await waitResponse(1000);

  // 2. Send initialized notification
  console.log("Sending initialized notification...");
  send({
    jsonrpc: "2.0",
    method: "notifications/initialized"
  });

  await new Promise(resolve => setTimeout(resolve, 500));

  // 3. Try calling upsert_menu with invalid rootImage (number)
  console.log("\nSending tools/call for upsert_menu with invalid rootImage (number)...");
  responseData = "";
  send({
    jsonrpc: "2.0",
    id: 3,
    method: "tools/call",
    params: {
      name: "upsert_menu",
      arguments: {
        name: "mcp-test-invalid-root",
        rootImage: 99999,
        items: [
          {
            label: "MCP Item",
            url: "/item",
            order: 1
          }
        ]
      }
    }
  });

  await waitResponse(2000);
  console.log("upsert_menu invalid rootImage response:", responseData);

  mcp.kill();
}

test().catch(err => {
  console.error("MCP Challenger Test failed:", err);
  process.exit(1);
});