/**
 * 从 git worktree 启动 esp32_server 时，ECAT_DIR 必须指回主检出的
 * tools/ecat，而不是 .../ESP32/.worktrees/ecat。
 * 复刻 _resolve_ecat_dir 的纯路径逻辑（无 DOM/无网络）。
 */
import assert from "node:assert/strict";
import path from "node:path";
import { fileURLToPath } from "node:url";

/** 与 esp32_server._resolve_ecat_dir 同构（JS 侧只测路径形状）。 */
function resolveEcatDir(baseDir) {
  let d = path.resolve(baseDir);
  const parent = path.dirname(d);
  if (path.basename(parent) === ".worktrees") {
    d = path.dirname(parent);
  }
  return path.normalize(path.join(d, "..", "ecat"));
}

let failed = 0;
function check(name, fn) {
  try {
    fn();
    console.log("  ✓", name);
  } catch (e) {
    failed++;
    console.log("  ✗", name, "—", e.message);
  }
}

console.log("[worktree ECAT_DIR]");

check("主检出 BASE_DIR → 兄弟 tools/ecat", () => {
  const base = path.resolve("G:/Robot_v2/DCU/tools/ESP32");
  const got = resolveEcatDir(base);
  assert.equal(got, path.resolve("G:/Robot_v2/DCU/tools/ecat"), got);
});

check("worktree BASE_DIR → 仍指主检出的 tools/ecat", () => {
  const base = path.resolve("G:/Robot_v2/DCU/tools/ESP32/.worktrees/device-link");
  const got = resolveEcatDir(base);
  assert.equal(got, path.resolve("G:/Robot_v2/DCU/tools/ecat"), got);
});

check("嵌套 slug 也走 .worktrees 父级", () => {
  const base = path.resolve("G:/x/tools/ESP32/.worktrees/foo-bar");
  const got = resolveEcatDir(base);
  assert.equal(got, path.resolve("G:/x/tools/ecat"), got);
});

/* BASE_DIR 恒为 esp32_server.py 所在目录；普通主检出已在第一项覆盖。 */

if (failed) {
  console.log(`失败 ${failed} 项`);
  process.exit(1);
}
console.log("通过 3 项，失败 0 项");