import { reducerWithInitialState } from 'typescript-fsa-reducers'
import { combineReducers } from 'redux'
import { keyBy } from 'lodash'

import * as EndUserActions from './actions'
import { IEndUser } from './interfaces'

const endUsers = reducerWithInitialState({})
  .case(EndUserActions.fetchEndUsersSuccess, (state, endUsers) => keyBy(endUsers, 'id'))
  .case(EndUserActions.updateEndUser, (state, payload: IEndUser) => {
    return { ...state, [payload.id]: payload }
  })

const loading = reducerWithInitialState<boolean>(false)
  .case(EndUserActions.fetchEndUsersPending, () => true)
  .cases([
    EndUserActions.fetchEndUsersSuccess,
    EndUserActions.fetchEndUsersFailed,
  ], () => false)

export default combineReducers({
  endUsers,
  loading,
})