just-paja/improtresk-web

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

import { fetchResourceIfRequired } from '../../sagas/api'
import { isRulesTextRequired, yearActiveNumber } from '../selectors'

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

function * fetchYearsRules () {
  const year = yield select(yearActiveNumber)
  if (year) {
    yield call(
      fetchResourceIfRequired,
      api.fetchRules,
      {
        isRequired: isRulesTextRequired,
        actions: {
          start: constants.YEAR_RULES_FETCH_START,
          success: constants.YEAR_RULES_FETCH_SUCCESS,
          fail: constants.YEAR_RULES_FETCH_ERROR
        },
        params: { year }
      }
    )
  }
}

function * fetchRules () {
  yield takeEvery(
    constants.YEAR_RULES_REQUIRED,
    fetchYearsRules
  )
}

export default [
  fetchRules
]