import { List } from 'immutable';

import { fetchEvents as fetchEventsApi } from '../api/events.js';
import { EVENTS_LOAD_FAILED, EVENTS_LOADED, GET_EVENTS } from '../constants/actionTypes.js';
import Event from '../domain/Event.js';
import { getAuthToken } from '../selectors/auth.js';

const beginFetchEvents = () => ({ type: GET_EVENTS });

const eventsLoaded = (payload) => ({ type: EVENTS_LOADED, payload });

const eventsLoadError = (payload) => ({ type: EVENTS_LOAD_FAILED, payload });

const eventsFetchSuccess = (items) => (dispatch) => {
    const payload = List(items).map((i) => Event.fromJS(i));
    dispatch(eventsLoaded(payload));
};

const eventsFetchFailure = (error) => (dispatch) => {
    console.error('[actions::events::eventsFetchFailure]', error);
    dispatch(eventsLoadError(error));
};

export const fetchEvents = () => (dispatch, getState) => {
    const authToken = getAuthToken(getState());

    dispatch(beginFetchEvents());
    fetchEventsApi(authToken)
        .then((payload) => dispatch(eventsFetchSuccess(payload)))
        .catch((err) => dispatch(eventsFetchFailure(err)));
};