ruddy/es/middleware/limiters.js

Modularized state-management tools for modern front-end applications. Manage dispatched messages in a clean and predictable way for either small or large scale projects

import _default3 from 'ramda/src/is';
import _default2 from 'ramda/src/isEmpty';
import _default from 'ramda/src/curry';


export default _default(function (throttling, debouncing, action) {
  if (_default2(throttling) && _default2(debouncing)) {
    return Promise.resolve(action);
  }
  var limiters = {};
  return new Promise(function (resolve) {
    if (!limiters[action.type]) {
      var ms = 0;
      if (throttling.some(function (_ref) {
        var throttleBy = _ref[0],
            milliseconds = _ref[1];

        if (_default3(String, throttleBy) && throttleBy === action.type || _default3(RegExp, throttleBy) && throttleBy.test(action.type) || _default3(Function, throttleBy) && throttleBy(action)) {
          ms = milliseconds;
          return true;
        }
        return false;
      })) {
        resolve(action);
        limiters[action.type] = setTimeout(function () {
          delete limiters[action.type];
        }, ms);
      } else if (debouncing.some(function (_ref2) {
        var debounceBy = _ref2[0],
            milliseconds = _ref2[1];

        if (_default3(String, debounceBy) && debounceBy === action.type || _default3(RegExp, debounceBy) && debounceBy.test(action.type) || _default3(Function, debounceBy) && debounceBy(action)) {
          ms = milliseconds;
          return true;
        }
        return false;
      })) {
        limiters[action.type] = setTimeout(function () {
          resolve(action);
          delete limiters[action.type];
        }, ms);
      } else {
        resolve(action);
      }
    }
    resolve(action);
  });
});