import { Buffer } from 'node:buffer';

export default {
  async test() {
    const smallStr = 'SGVsbG8gV29ybGQ=';
    const mixedStr = 'SGVsbG8_SGVsbG8-'.repeat(1000);
    const largeStr = 'SGVsbG8gV29ybGQ='.repeat(100000);

    function runBench(name, fn, iters) {
      // Warmup runs. (also helps V8 optimize this path)
      for (let i = 0; i < 1000; i++) fn();

      const start = Date.now();
      for (let i = 0; i < iters; i++) fn();
      const end = Date.now();

      console.log(
        `${name.padEnd(20)} | ${iters.toLocaleString().padStart(10)} iters | ${end - start} ms`
      );
    }

    console.log('Running Base64 Benchmarks');
    runBench('Small String', () => Buffer.from(smallStr, 'base64'), 10_000);
    runBench('Mixed URL-Safe', () => Buffer.from(mixedStr, 'base64'), 10_000);
    runBench('Large String', () => Buffer.from(largeStr, 'base64'), 10_000);
  },
};