twreporter-react-index-page/lib/reducers/entities.js

twreporter index page version 2

'use strict';

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

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

var _clone2 = _interopRequireDefault(_clone);

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

var _reduxStateFields2 = _interopRequireDefault(_reduxStateFields);

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

var _get2 = _interopRequireDefault(_get);

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

var _actionTypes2 = _interopRequireDefault(_actionTypes);

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; } /* eslint no-param-reassign: ["error", { "props": false }]*/


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

function putEntities() {
  var entityArr = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var entityMap = arguments[1];
  var force = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

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

  _entities.forEach(function (entity) {
    if (!entity) {
      return;
    }
    var slug = _.get(entity, 'slug');
    if (!Object.prototype.hasOwnProperty.call(entityMap, slug) || force) {
      entityMap[slug] = entity;
    }
  });
}

function entities() {
  var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var action = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var postEntityMap = void 0;
  var topicEntityMap = void 0;
  var payload = void 0;

  switch (action.type) {
    case _actionTypes2.default.GET_CONTENT_FOR_INDEX_PAGE:
      {
        var _$merge;

        // 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']
        //      }
        //   }
        // }
        postEntityMap = _.clone(_.get(state, _reduxStateFields2.default.posts, {}));
        topicEntityMap = _.clone(_.get(state, _reduxStateFields2.default.topics, {}));

        putEntities(_.get(action, 'payload.' + _reduxStateFields2.default.latest, []), postEntityMap);
        putEntities(_.get(action, 'payload.' + _reduxStateFields2.default.editorPicks, []), postEntityMap);
        putEntities(_.get(action, 'payload.' + _reduxStateFields2.default.reviews, []), postEntityMap);

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

        putEntities(_.get(action, 'payload.' + _reduxStateFields2.default.latestTopic), topicEntityMap, true);

        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:
      {
        // existing topic entity map
        topicEntityMap = _.clone(_.get(state, _reduxStateFields2.default.topics, {}));

        // topics we get from api
        payload = action.payload;

        putEntities(payload, topicEntityMap);

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

    case _actionTypes2.default.GET_PHOTOGRAPHY_POSTS_FOR_INDEX_PAGE:
    case _actionTypes2.default.GET_INFOGRAPHIC_POSTS_FOR_INDEX_PAGE:
      {
        // existing post entity map
        postEntityMap = _.clone(_.get(state, _reduxStateFields2.default.posts, {}));

        // topics we get from api
        payload = action.payload;

        putEntities(payload, postEntityMap);

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

    default:
      return state;
  }
}

exports.default = entities;