@hhjcz/redux-rest/lib/reducers/createRestReducer.js

'use strict';

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

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

exports.default = createRestReducer;

var _redux = require('redux');

var _InitialState = require('./InitialState');

var _isFetchingReducer = require('./isFetchingReducer');

var _isFetchingReducer2 = _interopRequireDefault(_isFetchingReducer);

var _lastFetchSignatureReducer = require('./lastFetchSignatureReducer');

var _lastFetchSignatureReducer2 = _interopRequireDefault(_lastFetchSignatureReducer);

var _idsReducer = require('./idsReducer');

var _idsReducer2 = _interopRequireDefault(_idsReducer);

var _itemsReducer = require('./itemsReducer');

var _itemsReducer2 = _interopRequireDefault(_itemsReducer);

var _itemReducer = require('./itemReducer');

var _itemReducer2 = _interopRequireDefault(_itemReducer);

var _entitiesReducer = require('./entitiesReducer');

var _entitiesReducer2 = _interopRequireDefault(_entitiesReducer);

var _paginationReducer = require('./paginationReducer');

var _paginationReducer2 = _interopRequireDefault(_paginationReducer);

var _sortReducer = require('./sortReducer');

var _sortReducer2 = _interopRequireDefault(_sortReducer);

var _filtersReducer = require('./filtersReducer');

var _filtersReducer2 = _interopRequireDefault(_filtersReducer);

var _generalParamsReducer = require('./generalParamsReducer');

var _generalParamsReducer2 = _interopRequireDefault(_generalParamsReducer);

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

/**
 * @param resourceName
 * @param config
 * @param {ActionTypes} actionTypes
 * @returns {reducer}
 */
/** Created by hhj on 1/29/16. */
/* eslint-disable max-len */
/* eslint-disable no-case-declarations */
function createRestReducer(resourceName) {
  var config = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
  var actionTypes = arguments.length <= 2 || arguments[2] === undefined ? {} : arguments[2];

  var itemTransformer = config.itemTransformer || function (item) {
    return item;
  };
  var idField = config.idField || 'id';

  var defaultState = config.defaultState || {};

  var combinedReducers = (0, _redux.combineReducers)({
    fetching: (0, _isFetchingReducer2.default)(actionTypes),
    lastFetchSignature: (0, _lastFetchSignatureReducer2.default)(actionTypes),
    itemId: (0, _itemReducer2.default)(actionTypes, idField),
    collectionIds: (0, _itemsReducer2.default)(actionTypes, idField),
    collectionIdsStatic: (0, _idsReducer2.default)(actionTypes),
    entities: (0, _entitiesReducer2.default)(actionTypes, itemTransformer, idField),
    pagination: (0, _paginationReducer2.default)(actionTypes),
    sort: (0, _sortReducer2.default)(actionTypes),
    filters: (0, _filtersReducer2.default)(actionTypes),
    generalParams: (0, _generalParamsReducer2.default)(actionTypes)
  });

  // performance boost? - skip actions that don't belong to this reducer
  function shouldWeReduce(action) {
    // TODO - better recognition of what is ours - action can have resourceName property...
    if (action.type && action.type.toLowerCase().indexOf(resourceName.toLowerCase()) === -1) return false;
    return true;
  }

  return function restReducer(state, action) {
    if (!(state instanceof _InitialState.InitialState)) return (0, _InitialState.makeInitialState)((0, _extends3.default)({}, defaultState, state));
    // if (!shouldWeReduce(action)) return state

    // combineReducers works with plain object state only
    var nextState = combinedReducers(state.toObject(), action);
    // convert back to immutable after reducing
    return new _InitialState.InitialState(nextState);
  };
}