import { describe, test } from 'node:test';
import assert from 'node:assert/strict';
import { resolveWeasyprint as resolvePdf } from '../build-pdf.mjs';
import { resolveWeasyprint as resolveCarousel } from '../build-carousel.mjs';

// S1 (correction #3): when weasyprint is not resolvable on PATH, the degradation
// helper must return a skip-signal (NOT throw) and emit an install hint, so the
// render scripts can skip the PDF step gracefully instead of crashing.

for (const [name, resolveWeasyprint] of [
  ['build-pdf', resolvePdf],
  ['build-carousel', resolveCarousel],
]) {
  describe(`resolveWeasyprint — ${name}`, () => {
    test('returns a skip-signal (not a throw) when weasyprint is absent', () => {
      let result;
      assert.doesNotThrow(() => {
        result = resolveWeasyprint(() => false);
      });
      assert.equal(result.available, false);
    });

    test('emits an install hint when absent', () => {
      const result = resolveWeasyprint(() => false);
      assert.ok(typeof result.hint === 'string' && result.hint.length > 0);
      assert.match(result.hint, /weasyprint/i);
      assert.match(result.hint, /install/i);
    });

    test('reports available when the probe succeeds', () => {
      const result = resolveWeasyprint(() => true);
      assert.equal(result.available, true);
      assert.equal(result.hint, undefined);
    });
  });
}