import assert from 'node:assert/strict';
import { readFile } from 'node:fs/promises';
import test from 'node:test';

test('PWA icons include a compact adaptive icon', async () => {
  const manifest = JSON.parse(await readFile(new URL('../public/manifest.webmanifest', import.meta.url), 'utf8'));
  for (const size of ['192x192', '512x512']) {
    assert.ok(manifest.icons.some(icon => icon.sizes === size && (icon.purpose ?? 'any').split(/\s+/).includes('any')));
  }
  const maskable = manifest.icons.filter(icon => (icon.purpose ?? 'any').split(/\s+/).includes('maskable'));
  assert.equal(maskable.length, 1);
  assert.equal(maskable[0].sizes, '512x512');
  assert.equal(maskable[0].type, 'image/png');
  const image = await readFile(new URL(`../public${maskable[0].src}`, import.meta.url));
  assert.ok(image.length <= 32 * 1024);
  assert.equal(image.readUInt32BE(16), 512);
  assert.equal(image.readUInt32BE(20), 512);
});