twreporter-redux/lib/reducers/entities.js

redux actions and reducers for twreporter website

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; /* eslint no-param-reassign: ["error", { "props": false }]*/


// lodash


var _reduxStateFields = require('../constants/redux-state-fields');

var _reduxStateFields2 = _interopRequireDefault(_reduxStateFields);

var _actionTypes = require('../constants/action-types');

var _actionTypes2 = _interopRequireDefault(_actionTypes);

var _clone = require('lodash/clone');

var _clone2 = _interopRequireDefault(_clone);

var _get = require('lodash/get');

var _get2 = _interopRequireDefault(_get);

var _map = require('lodash/map');

var _map2 = _interopRequireDefault(_map);

var _merge = require('lodash/merge');

var _merge2 = _interopRequireDefault(_merge);

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

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var _ = {
  get: _get2.default,
  clone: _clone2.default,
  map: _map2.default,
  merge: _merge2.default
};

function putEntities() {
  var entityArr = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var entityMap = arguments[1];

  var _entities = entityArr;
  if (!Array.isArray(entityArr)) {
    _entities = [entityArr];
  }

  _entities.forEach(function (entity) {
    if ((typeof entity === 'undefined' ? 'undefined' : _typeof(entity)) !== 'object') {
      return;
    }
    var slug = _.get(entity, 'slug');
    var isFull = _.get(entity, 'full', false);
    if (!Object.prototype.hasOwnProperty.call(entityMap, slug) || isFull) {
      entityMap[slug] = entity;
    }
  });
}

// This will normalize the posts and topics.
// EX:
// action = {
//  latest: [{
//    slug: 'post_1'
//    is_feature: false,
//    style: 'article'
//  }, {
//    slug: 'post_2'
//    is_feature: false,
//    style: 'article'
//  }],
//  editor_picks: [{
//    slug: 'post_3',
//    is_feature: true
//    style: 'article'
//  }],
//  reviews: [{
//    slug: 'post_4',
//    is_feature: false
//    style: 'review'
//  }],
//  latest_topics: {
//    slug: 'topic_1',
//    relateds: [{
//      slug: 'post_5'
//      is_feature: false
//      style: 'article'
//    },{
//      slug: 'post_6'
//      is_feature: false
//      style: 'article'
//    }]
//  }
// }
//
// the result will be
// {
//   posts: {
//    'post_1': {
//      slug: 'post_1'
//      is_feature: false,
//      style: 'article'
//    },
//    'post_2': {
//      slug: 'post_2'
//      is_feature: false,
//      style: 'article'
//    },
//    'post_3': {
//      slug: 'post_3'
//      is_feature: true,
//      style: 'article'
//    },
//    'post_4': {
//      slug: 'post_4'
//      is_feature: false,
//      style: 'review'
//    },
//    'post_5': {
//      slug: 'post_5'
//      is_feature: false,
//      style: 'article'
//    },
//    'post_6': {
//      slug: 'post_6'
//      is_feature: false,
//      style: 'article'
//    },
//   },
//   topics: {
//      'topic_1': {
//        slug: 'topic_1',
//        relateds: [ 'post_5', 'post_6']
//      }
//   }
// }
function entities() {
  var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var action = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var postEntityMap = _.clone(_.get(state, _reduxStateFields2.default.posts, {}));
  var topicEntityMap = _.clone(_.get(state, _reduxStateFields2.default.topics, {}));
  var payload = void 0;
  switch (action.type) {
    case _actionTypes2.default.GET_CONTENT_FOR_INDEX_PAGE:
      {
        var _$merge;

        payload = action.payload;
        putEntities(_.get(payload, _reduxStateFields2.default.latest, []), postEntityMap);
        putEntities(_.get(payload, _reduxStateFields2.default.editorPicks, []), postEntityMap);
        putEntities(_.get(payload, _reduxStateFields2.default.reviews, []), postEntityMap);
        putEntities(_.get(payload, _reduxStateFields2.default.photos, []), postEntityMap);
        putEntities(_.get(payload, _reduxStateFields2.default.infographics, []), postEntityMap);

        var latestTopic = _.get(payload, [_reduxStateFields2.default.latestTopic, 0], []);
        var relatedPostsInTopic = _.get(latestTopic, _reduxStateFields2.default.relateds, []);
        latestTopic[_reduxStateFields2.default.relateds] = _.map(relatedPostsInTopic, function (post) {
          return _.get(post, 'slug');
        });
        putEntities(relatedPostsInTopic, postEntityMap);
        putEntities(latestTopic, topicEntityMap);

        var topics = _.get(payload, _reduxStateFields2.default.topics, []);
        putEntities(topics, topicEntityMap);

        return _.merge({}, state, (_$merge = {}, _defineProperty(_$merge, _reduxStateFields2.default.posts, postEntityMap), _defineProperty(_$merge, _reduxStateFields2.default.topics, topicEntityMap), _$merge));
      }

    case _actionTypes2.default.GET_TOPICS_FOR_INDEX_PAGE:
      {
        // topics we get from api
        payload = _.get(action, 'payload.items', []);

        putEntities(payload, topicEntityMap);

        return _.merge({}, state, _defineProperty({}, _reduxStateFields2.default.topics, topicEntityMap));
      }

    case _actionTypes2.default.GET_EDITOR_PICKED_POSTS:
    case _actionTypes2.default.GET_PHOTOGRAPHY_POSTS_FOR_INDEX_PAGE:
    case _actionTypes2.default.GET_INFOGRAPHIC_POSTS_FOR_INDEX_PAGE:
    case _actionTypes2.default.GET_LISTED_POSTS:
      {
        // topics we get from api
        payload = _.get(action, 'payload.items', []);

        putEntities(payload, postEntityMap);

        return _.merge({}, state, _defineProperty({}, _reduxStateFields2.default.posts, postEntityMap));
      }

    case _actionTypes2.default.GET_A_FULL_POST:
      {
        var _$merge4;

        var post = _.get(action, 'payload', {});
        var topic = _.get(post, _reduxStateFields2.default.topics, {});
        putEntities(topic, topicEntityMap);
        post[_reduxStateFields2.default.topics] = _.get(topic, 'slug');

        var relatedPosts = _.get(post, _reduxStateFields2.default.relateds, []);
        post[_reduxStateFields2.default.relateds] = _.map(relatedPosts, function (_post) {
          return _.get(_post, 'slug');
        });
        putEntities(relatedPosts, postEntityMap);

        // set full post into post entities
        putEntities([post], postEntityMap);

        return _.merge({}, state, (_$merge4 = {}, _defineProperty(_$merge4, _reduxStateFields2.default.posts, postEntityMap), _defineProperty(_$merge4, _reduxStateFields2.default.topics, topicEntityMap), _$merge4));
      }

    case _actionTypes2.default.GET_A_FULL_TOPIC:
      {
        var _$merge5;

        var _topic = _.get(action, 'payload', {});

        var _relatedPosts = _.get(_topic, _reduxStateFields2.default.relateds, []);
        _topic[_reduxStateFields2.default.relateds] = _.map(_relatedPosts, function (post) {
          return _.get(post, 'slug');
        });
        putEntities(_relatedPosts, postEntityMap);

        // set full topic into topic entities
        putEntities([_topic], topicEntityMap);

        return _.merge({}, state, (_$merge5 = {}, _defineProperty(_$merge5, _reduxStateFields2.default.posts, postEntityMap), _defineProperty(_$merge5, _reduxStateFields2.default.topics, topicEntityMap), _$merge5));
      }

    default:
      {
        return state;
      }
  }
}

exports.default = entities;