import { test } from "node:test";
import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import { join, dirname } from "node:path";
import { fileURLToPath } from "node:url";

const root = join(dirname(fileURLToPath(import.meta.url)), "..", "..");
const skill = readFileSync(join(root, "mentor", "SKILL.md"), "utf8");
const catalog = JSON.parse(readFileSync(join(root, "course", "catalog.json"), "utf8"));
const entries = Array.isArray(catalog) ? catalog : catalog.entries ?? Object.values(catalog);

test("mentor_skill_frontmatter_has_name_and_description", () => {
  const m = /^---\n([\s\S]*?)\n---\n/.exec(skill);
  assert.ok(m, "frontmatter present");
  assert.match(m[1], /^name: systemic-design-mentor$/m);
  assert.match(m[1], /^description: \S.{40,}/m);
});

test("mentor_skill_names_no_module_specific_cards", () => {
  const META = new Set(["TEXT", "ALL", "EMPTY"]);
  const names = entries
    .filter((e) => e.kind === "card" || (e.kind === "word" && e.role === "noun" && !META.has(e.name)))
    .map((e) => ({ name: e.name, flags: e.kind === "card" ? "i" : "" })) // noun words are ALL CAPS; "Baba Is You" the title is fine
    .filter((n) => n.name.length >= 2);
  assert.ok(names.length > 10, "catalog has names to check");
  const esc = (s) => s.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
  const hits = names
    .filter((n) => new RegExp(`(?<![A-Za-z0-9_])${esc(n.name)}(?![A-Za-z0-9_])`, n.flags).test(skill))
    .map((n) => n.name);
  assert.deepEqual(hits, []);
});