ruddy/es/middleware/multipliers.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/unnest';
import _default2 from 'ramda/src/is';
import _default from 'ramda/src/curry';

import { isAction } from '../util/is';

export default _default(function (logger, multipliers, dispatch, action) {
  multipliers.filter(function (multiplierMap) {
    return multiplierMap[action.type];
  }).forEach(function (multiplierMap) {
    try {
      var fanout = multiplierMap[action.type];
      var nextActions = fanout(action);
      if (_default2(Array, nextActions)) {
        _default3(nextActions).filter(function (na) {
          return isAction(na) && na.type !== action.type;
        }).forEach(function (nextAction) {
          try {
            dispatch(nextAction);
          } catch (err) {
            logger.error('Unable to dispatch action: "' + nextAction.type + '", multiplied from "' + action.type + '"', err);
          }
        });
      }
    } catch (error) {
      logger.error('Unable to multiply action: "' + action.type + '"', error);
    }
  });
  return action;
});