ruddy/es/middleware/enhancers.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 _default4 from 'ramda/src/__';
import _default3 from 'ramda/src/test';
import _default2 from 'ramda/src/is';
import _default from 'ramda/src/curry';

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

var createDispatchHandler = _default(function (dispatch, originalAction, nextAction) {
  if (isAction(nextAction)) {
    if (nextAction.type !== originalAction.type) {
      return dispatch(nextAction);
    }
    return nextAction;
  }
  return originalAction;
});

export default _default(function (logger, dispatch, enhancers, action) {
  var handleDispatch = createDispatchHandler(dispatch, action);
  if (_default2(Array, enhancers)) {
    var isPatternMatch = _default3(_default4, action.type);
    enhancers.forEach(function (_ref) {
      var pred = _ref[0],
          en = _ref[1];

      if (_default2(RegExp, pred) && isPatternMatch(pred) || _default2(String, pred) && pred === action.type || _default2(Function, pred) && pred(action)) {
        try {
          var nextAction = en(action);
          handleDispatch(nextAction);
        } catch (error) {
          logger.error('Unable to enhance action: "' + action.type + '"', error);
        }
      }
    });
  } else if (isPlainObj(enhancers)) {
    var enhance = enhancers[action.type];
    if (_default2(Function, enhance)) {
      try {
        var nextAction = enhance(action);
        return handleDispatch(nextAction);
      } catch (error) {
        logger.error('Unable to enhance action: "' + action.type + '"', error);
      }
    }
  }
  return action;
});