// Times one render() of one line. Args: shape variant size.
// ITEM, ATX, FENCE: marker + run of size KiB + tail (u2028, u2029 or letter).
// RULE: '-' x size MiB (variant dash) or '- ' x size/2 MiB (variant dashspace).
import { readFileSync } from 'node:fs';
import { runInNewContext } from 'node:vm';
const [shape, variant, size] = process.argv.slice(2);
const src = readFileSync(process.env.MDP, 'utf8');
const window = {}; runInNewContext(src, { window });
class N { constructor(t) { this.c = []; } appendChild(x) { this.c.push(x); return x; } setAttribute() {} set textContent(v) {} get lastChild() { return this.c.at(-1); } }
const doc = { createElement: t => new N(t), createTextNode: t => ({ t }), createDocumentFragment: () => new N('#f') };
let line;
if (shape === 'RULE') {
  const n = Number(size) * 1024 * 1024;
  line = variant === 'dash' ? '-'.repeat(n) : '- '.repeat(n / 2);
} else {
  const n = Number(size) * 1024;
  const tail = { u2028: '
', u2029: '
', letter: 'x' }[variant];
  line = { ITEM: '-' + ' '.repeat(n), ATX: '#' + ' '.repeat(n), FENCE: '`'.repeat(n) }[shape] + tail;
}
const meter = {};
const t0 = performance.now();
window.MosaicMarkdown.render(line, doc, meter);
const ms = performance.now() - t0;
console.log(`${shape} ${variant} ${size} len=${line.length} ms=${ms.toFixed(1)} work=${meter.work} budget=${meter.budget}`);