// Runs the end-to-end suites. No arguments: all of them, in parallel. Names: only those, e.g. `bun run e2e canvas tags`.
import { spawn } from 'node:child_process';
import { readdirSync } from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
const electron = path.join(root, 'node_modules/.bin/electron');
const want = process.argv.slice(2);
const all = readdirSync(path.join(root, 'test')).filter((f) => /^e2e.*\.test\.cjs$/.test(f)).sort();
const files = want.length ? all.filter((f) => want.some((w) => f === `e2e-${w}.test.cjs` || f === `e2e.test.cjs` && w === 'e2e')) : all;
if (!files.length) { console.error(`No suite matches: ${want.join(', ')}`); process.exit(2); }

// Timing-sensitive suites (they measure frame rate) run alone, after the rest, so the others can't slow them down.
const SERIAL = ['e2e-board-drag.test.cjs'];

const started = Date.now();
const run = (file) => new Promise((resolve) => {
  const t0 = Date.now();
  const child = spawn(electron, [path.join('test', file), '--ozone-platform=headless'], { cwd: root });
  let out = '';
  child.stdout.on('data', (d) => (out += d));
  child.stderr.on('data', (d) => (out += d));
  child.on('close', (code) => {
    const lines = out.split('\n').filter((l) => /^(PASS|FAIL)|passed!|failed|harness/.test(l) && !/Fontconfig/.test(l));
    const fails = lines.filter((l) => l.startsWith('FAIL') || /failed|harness/.test(l));
    resolve({ file, code, secs: ((Date.now() - t0) / 1000).toFixed(0), fails, checks: lines.filter((l) => l.startsWith('PASS')).length });
  });
});

const parallel = files.filter((f) => !SERIAL.includes(f));
const results = await Promise.all(parallel.map(run));
for (const f of files.filter((f) => SERIAL.includes(f))) results.push(await run(f));
for (const r of results) {
  const ok = r.code === 0;
  console.log(`${ok ? 'ok  ' : 'FAIL'} ${r.file.padEnd(28)} ${String(r.checks).padStart(3)} checks  ${r.secs}s`);
  if (!ok) for (const l of r.fails) console.log('       ' + l);
}
console.log(`\n${results.filter((r) => r.code === 0).length}/${results.length} suites passed in ${((Date.now() - started) / 1000).toFixed(0)}s`);
process.exit(results.every((r) => r.code === 0) ? 0 : 1);