redeem-multiple-codes

(async function(codes) {
  const delay = (mult = 1) => new Promise(r => setTimeout(r, (1500 + Math.random() * 500) * mult));
  const nativeInputValueSetter = Object.getOwnPropertyDescriptor(window.HTMLInputElement.prototype, 'value').set;

  let mult = 1;
  for (let i = 0; i < codes.length; i++) {
    const input = document.getElementById('redeemCode');
    const btn = document.getElementById('submit-code-btn');

    nativeInputValueSetter.call(input, codes[i]);
    input.dispatchEvent(new Event('input', { bubbles: true }));
    await delay(mult);

    btn.click();
    await delay(mult);

    btn.click();
    await delay(mult);

    const helper = document.getElementById('redeemCode-helper-text');
    const helperText = helper ? helper.textContent.trim() : '';

    if (helperText.includes('too frequent')) {
      mult *= 2;
      console.log(`[${i + 1}/${codes.length}] ${codes[i]} → Throttled! Delay ${mult}x. Retrying...`);
      i--;
    } else if (helperText) {
      mult = 1;
      console.log(`[${i + 1}/${codes.length}] ${codes[i]} → ${helperText}`);
    } else {
      const snackbar = document.getElementById('notifications-snackbar');
      const snackText = snackbar ? snackbar.textContent.trim() : '';
      if (snackText.includes('Successfully redeemed code')) {
        mult = 1;
        console.log(`[${i + 1}/${codes.length}] ${codes[i]} → ${snackText}`);
      } else {
        mult *= 2;
        console.log(`[${i + 1}/${codes.length}] ${codes[i]} → No response detected. Delay ${mult}x. Retrying...`);
        i--;
      }
    }
  }

  console.log('All codes processed!');
})([
  "TODO",
  "TODO",
  "TODO"
]);