const targets = [
  { name: "Redis", dir: "client-redis" },
  { name: "Memcached", dir: "client-memcached" },
  { name: "ArangoDB", dir: "client-arangodb" },
];

const results: any[] = [];

for (const t of targets) {
  console.log(`\n>>> Running benchmark for ${t.name} ...`);
  const proc = Bun.spawnSync(["bun", "bench.ts"], { cwd: t.dir, stdout: "pipe", stderr: "pipe" });
  const out = proc.stdout.toString();
  const err = proc.stderr.toString();
  process.stdout.write(out.split("\n").filter(l => !l.startsWith("##RESULT##")).join("\n"));
  if (err.trim()) process.stderr.write(err);
  const line = out.split("\n").find(l => l.startsWith("##RESULT## "));
  if (line) results.push(JSON.parse(line.slice("##RESULT## ".length)));
}

function pad(s: string, n: number) {
  return s.padEnd(n);
}
function padNum(s: string, n: number) {
  return s.padStart(n);
}

const testMeta = [
  { idx: 0, title: "Anwendungsfall 1  -  Schreiben (Live-Player-Sync, 1 Schluessel)" },
  { idx: 1, title: "Anwendungsfall 1  -  Lesen    (Live-Player-Sync, 1 Schluessel)" },
  { idx: 2, title: "Anwendungsfall 2  -  Lesen    (Region / Fast Travel, 14 Schluessel)" },
  { idx: 3, title: "Anwendungsfall 2  -  Schreiben (Region / Fast Travel, 14 Schluessel)" },
];

console.log("\n\n==================== VERGLEICH ====================");

for (const m of testMeta) {
  console.log(`\n${m.title}`);
  console.log(`  ${pad("DB", 12)} | ${padNum("Ops/s", 11)} | ${padNum("ms/Op", 10)} | ${padNum("Gesamt ms", 11)}`);
  console.log(`  ${"-".repeat(12)}-+-${"-".repeat(11)}-+-${"-".repeat(10)}-+-${"-".repeat(11)}`);
  const rows = results.map(r => ({ db: r.db, t: r.tests[m.idx] }));
  const fastest = Math.max(...rows.map(x => x.t.opsPerSec));
  for (const row of rows) {
    const mark = row.t.opsPerSec === fastest ? "  <-- am schnellsten" : "";
    console.log(`  ${pad(row.db, 12)} | ${padNum(Math.round(row.t.opsPerSec).toString(), 11)} | ${padNum(row.t.avgMs.toFixed(4), 10)} | ${padNum(row.t.ms.toFixed(1), 11)}${mark}`);
  }
}

console.log("\n==================================================");