TenantAtlas/apps/platform/.pnpm-store/v10/files/6c/3138af6c921445707d886486679826958efcbc5c4f845abde85c967ed7993f67ed857a38097b57cae45785eb76312c85741df244f983e93491f1add89879f5

/**
 * Throttle decorator
 * @param {Function} fn
 * @param {Number} freq
 * @return {Function}
 */
function throttle(fn, freq) {
  let timestamp = 0;
  let threshold = 1000 / freq;
  let lastArgs;
  let timer;

  const invoke = (args, now = Date.now()) => {
    timestamp = now;
    lastArgs = null;
    if (timer) {
      clearTimeout(timer);
      timer = null;
    }
    fn(...args);
  };

  const throttled = (...args) => {
    const now = Date.now();
    const passed = now - timestamp;
    if (passed >= threshold) {
      invoke(args, now);
    } else {
      lastArgs = args;
      if (!timer) {
        timer = setTimeout(() => {
          timer = null;
          invoke(lastArgs);
        }, threshold - passed);
      }
    }
  };

  const flush = () => lastArgs && invoke(lastArgs);

  return [throttled, flush];
}

export default throttle;