ruddy/cjs/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

'use strict';

exports.__esModule = true;

var _is = require('ramda/src/is');

var _is2 = _interopRequireDefault(_is);

var _isEmpty = require('ramda/src/isEmpty');

var _isEmpty2 = _interopRequireDefault(_isEmpty);

var _curry = require('ramda/src/curry');

var _curry2 = _interopRequireDefault(_curry);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = (0, _curry2.default)(function (throttling, debouncing, action) {
  if ((0, _isEmpty2.default)(throttling) && (0, _isEmpty2.default)(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 ((0, _is2.default)(String, throttleBy) && throttleBy === action.type || (0, _is2.default)(RegExp, throttleBy) && throttleBy.test(action.type) || (0, _is2.default)(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 ((0, _is2.default)(String, debounceBy) && debounceBy === action.type || (0, _is2.default)(RegExp, debounceBy) && debounceBy.test(action.type) || (0, _is2.default)(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);
  });
});