just-paja/improtresk-web

import { call, put, select, takeEvery } from 'redux-saga/effects'

import { requireCapacityPoll, stopCapacityPoll } from '../../years/actions'
import { fetchResourceIfRequired } from '../../sagas/api'
import { isWorkshopListRequired } from '../selectors'
import { yearActiveNumber } from '../../years/selectors'

import * as api from '../../api'
import * as constants from '../constants'

function * fetchWorkshopList () {
  const year = yield select(yearActiveNumber)
  if (year) {
    yield call(
      fetchResourceIfRequired,
      api.fetchWorkshops,
      {
        isRequired: isWorkshopListRequired,
        actions: {
          start: constants.WORKSHOPS_FETCH_STARTED,
          success: constants.WORKSHOPS_FETCH_SUCCESS,
          fail: constants.WORKSHOPS_FETCH_ERROR
        },
        params: { year }
      }
    )
  }
}

function * fetchWorkshopInteractiveList () {
  yield put(requireCapacityPoll())
  yield call(fetchWorkshopList)
}

function * stopPolling () {
  yield put(stopCapacityPoll())
}

function * onWorkshopListRequire () {
  yield takeEvery(constants.WORKSHOPS_REQUIRED, fetchWorkshopList)
}

function * onWorkshopInteractiveListRequire () {
  yield takeEvery(constants.WORKSHOPS_INTERACTIVE_REQUIRED, fetchWorkshopInteractiveList)
}

function * onWorkshopListExit () {
  yield takeEvery(constants.WORKSHOPS_LEFT, stopPolling)
}

export default [
  onWorkshopInteractiveListRequire,
  onWorkshopListExit,
  onWorkshopListRequire
]