const fs = require("fs");
const path = require("path");
const { execSync } = require("child_process");

const statePath = path.join(process.cwd(), ".cursor", "pipeline-state.json");

function readState() {
  if (!fs.existsSync(statePath)) {
    return {
      implementation: "pending",
      review: "pending",
      tests: "pending"
    };
  }
  return JSON.parse(fs.readFileSync(statePath, "utf8"));
}

function fail(msg) {
  process.stdout.write(JSON.stringify({ followup_message: msg }));
  process.exit(0);
}

const state = readState();

if (state.implementation !== "done") {
  fail("Run frontend-senior stage");
}

if (state.review !== "done") {
  fail("Run reviewer stage");
}

if (state.tests !== "done") {
  fail("Run unit-tests stage");
}

try {
  execSync("npm run lint", { stdio: "pipe" });
} catch {
  fail("Lint failed");
}

try {
  execSync("npm run typecheck", { stdio: "pipe" });
} catch {
  fail("Typecheck failed");
}

try {
  execSync("npm run test", { stdio: "pipe" });
} catch {
  fail("Tests failed");
}

process.exit(0);