stitch-ui/src/users/users.js

import { createReducer, createAction } from "redux-act";
import { List } from "immutable";
import { makeAsyncActions } from "../util";

export const makeLoadUsersActions = prefix =>
  makeAsyncActions(`${prefix}load users`);

export const makeResetUsersAction = prefix =>
  createAction(`${prefix}reset users`);

export const makeAddUserAction = prefix =>
  makeAsyncActions(`${prefix}add user`);

export const makeUserReducer = (actionsRoot, resetAction) =>
  createReducer(
    {
      [resetAction]: state => ({ ...state, users: List() }),
      [actionsRoot.req]: state => ({ ...state, loadingUsers: true }),
      [actionsRoot.fail]: (state, payload) => ({
        ...state,
        loadingUsers: false,
        loadingUsersError: payload.error
      }),
      [actionsRoot.rcv]: (state, payload) => {
        const newUsers = state.users.concat(payload.payload);
        let lastUserId = state.lastUserId;
        if (payload.payload.length > 0) {
          lastUserId = payload.payload[payload.payload.length - 1]._id; // eslint-disable-line no-underscore-dangle
        } else {
          lastUserId = null;
        }
        return {
          ...state,
          users: newUsers,
          lastUserId,
          loadingUsers: false
        };
      }
    },
    {
      users: List(),
      lastUserId: null,
      loadingUsers: false,
      loadingUsersError: null
    }
  );