authentication.js

import Immutable from 'immutable'
import { LOGIN, LOGIN_SUCCESS, LOGIN_FAILURE } from 'actions/authentication'

const initialState = Immutable.Map({ loggedIn: false, loggingIn: false })

export default function authenticationReducer (state = initialState, action) {
  const pending = state.merge({ loggedIn: false, loggingIn: true })
  const success = state.merge({ loggedIn: true, loggingIn: false, token: action.payload.token })
  const failure = state.merge({ loggedIn: false, loggingIn: false, error: action.error })

  switch (action.type) {
    case AUTHENTICATE: return pending
    case AUTHENTICATE_SUCCESS: return success
    case AUTHENTICATION_FAILURE: return failure
    case VERIFY_TOKEN: return pending
    case VERIFY_TOKEN_SUCCESS: return success
    case VERIFY_TOKEN_FAILURE: return failure
    default: return state
  }
}