import assert from "node:assert/strict";
import { readFile } from "node:fs/promises";
import { join } from "node:path";
import test from "node:test";

import { parseSkillsRegistry, toAuditUsedSkill } from "../lib/skills-registry";

test("parseSkillsRegistry parses v3 yaml metablocks from v2 source", async () => {
  const source = await readFile(join(process.cwd(), "v2_elemente", "skills.md"), "utf8");

  const parsed = parseSkillsRegistry(source);

  assert.equal(parsed.length, 9);
  const visualDesign = parsed.find((entry) => entry.id === "visual-design");
  assert.ok(visualDesign);
  assert.equal(visualDesign.title, "Visueller Gesamteindruck & Zeitgemäßheit");
  assert.equal(visualDesign.name, "Visueller Gesamteindruck & Zeitgemäßheit");
  assert.equal(visualDesign.appliesWhen, "website_exists");
  assert.deepEqual(visualDesign.inputs, [
    "desktop_screenshot",
    "mobile_screenshot",
  ]);
  assert.equal(visualDesign.outputs, "findings");
  const instructions = visualDesign.instructions;
  if (typeof instructions !== "string") {
    assert.fail("Expected visual-design instructions to be parsed.");
  }
  assert.match(instructions, /Beurteile den ersten visuellen Eindruck/);
});

test("toAuditUsedSkill exposes stable ids for v3 registry entries", async () => {
  const source = await readFile(join(process.cwd(), "v2_elemente", "skills.md"), "utf8");
  const parsed = parseSkillsRegistry(source);
  const skill = parsed.find((entry) => entry.id === "contact-conversion");

  assert.ok(skill);
  assert.deepEqual(toAuditUsedSkill(skill), {
    id: "contact-conversion",
    name: "Kontaktaufnahme & Handlungsaufforderung",
  });
});

test("parseSkillsRegistry does not infer categories for v3 entries without explicit metadata", async () => {
  const source = await readFile(join(process.cwd(), "v2_elemente", "skills.md"), "utf8");
  const parsed = parseSkillsRegistry(source);
  const skill = parsed.find((entry) => entry.id === "performance-experience");

  assert.ok(skill);
  assert.equal(skill.category, undefined);
  assert.deepEqual(toAuditUsedSkill(skill), {
    id: "performance-experience",
    name: "Tempo & Ladeerlebnis",
  });
});

test("parseSkillsRegistry can read legacy and v3 skill sections from one registry", () => {
  const source = `
## Legacy Copy Skill
Purpose: Improve customer-facing copy.
When to use: Use when page text is unclear.
When not to use: Skip when copy is not available.
Required input: Markdown copy.
Expected output: Copy recommendations.
Category: copy

## mobile-usability

\`\`\`yaml
id: mobile-usability
title: Mobile Nutzbarkeit
applies_when: has_mobile_screenshot
inputs: [mobile_screenshot, pagespeed]
outputs: findings
\`\`\`

Pruefe mobile Lesbarkeit und Tap-Ziele.
`;

  const parsed = parseSkillsRegistry(source);

  assert.equal(parsed.length, 2);
  assert.equal(parsed[0].name, "Legacy Copy Skill");
  assert.equal(parsed[0].category, "copy");
  assert.equal(parsed[1].id, "mobile-usability");
  assert.equal(parsed[1].category, undefined);
  assert.deepEqual(parsed[1].inputs, ["mobile_screenshot", "pagespeed"]);
});