@twreporter/redux/lib/reducers/feature-topic.js

redux actions and reducers for twreporter website

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = featureTopic;
var _actionTypes = _interopRequireDefault(require("../constants/action-types"));
var _get = _interopRequireDefault(require("lodash/get"));
var _map = _interopRequireDefault(require("lodash/map"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
// lodash

var _ = {
  get: _get["default"],
  map: _map["default"]
};

/** @type {import('../typedef').FeatureTopic} */
var initialState = {
  isFetching: false,
  error: null,
  id: '',
  lastThreeRelatedPostIds: []
};

/**
 *  @param {import('../typedef').FeatureTopic} state
 *  @param {Object} [action={}]
 *  @param {string} [action.type]
 *  @param {Object} [action.payload]
 *  @param {Object} action.payload.topic
 *  @param {Object[]} action.payload.lastThreeRelatedPosts
 *  @param {Object} action.payload.error
 */
function featureTopic() {
  var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : initialState;
  var action = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  switch (_.get(action, 'type', '')) {
    case _actionTypes["default"].featureTopic.read.request:
      {
        return {
          isFetching: true,
          error: null,
          id: '',
          lastThreeRelatedPostIds: []
        };
      }
    case _actionTypes["default"].featureTopic.read.failure:
      {
        var error = _.get(action, 'payload.error', null);
        return {
          isFetching: false,
          error: error,
          id: '',
          lastThreeRelatedPostIds: []
        };
      }
    case _actionTypes["default"].featureTopic.read.success:
      {
        var topicId = _.get(action, 'payload.topic.id', '');
        if (!topicId) {
          return state;
        }
        var relatedPosts = _.get(action, 'payload.lastThreeRelatedPosts', []);
        var relatedPostIds = _.map(relatedPosts, function (post) {
          return _.get(post, 'id', '');
        });
        return {
          isFetching: false,
          error: null,
          id: topicId,
          lastThreeRelatedPostIds: relatedPostIds
        };
      }
    default:
      return state;
  }
}