@shopgate/pwa-common/reducers/router/index.js

Common library for the Shopgate Connect PWA.

import cloneDeep from 'lodash/cloneDeep';
import { stack } from '@virtuous/conductor';
import { ROUTE_WILL_ENTER, ROUTE_DID_LEAVE, ROUTE_WILL_LEAVE, ROUTE_DID_UPDATE, ROUTE_DID_ENTER } from "../../constants/ActionTypes";
const defaultState = {
  currentRoute: null,
  stack: []
};

/**
 * @param {Object} state The current state.
 * @param {Object} action The action object.
 * @returns {Object}
 */
export default function router(state = defaultState, action = {}) {
  switch (action.type) {
    case ROUTE_WILL_LEAVE:
    case ROUTE_DID_LEAVE:
      {
        return {
          ...state,
          stack: Array.from(stack.getAll().values())
        };
      }
    case ROUTE_WILL_ENTER:
    case ROUTE_DID_ENTER:
      return {
        ...state,
        stack: Array.from(stack.getAll().values()),
        currentRoute: cloneDeep(action.route)
      };
    case ROUTE_DID_UPDATE:
      {
        const {
          id: currentId
        } = state.currentRoute || {};
        const {
          id: updatedId
        } = action.route;
        if (currentId === updatedId) {
          return {
            ...state,
            stack: Array.from(stack.getAll().values()),
            currentRoute: cloneDeep(action.route)
          };
        }
        return state;
      }
    default:
      return state;
  }
}