import { Map } from 'immutable';
import { createSelector } from 'reselect';

const getState = (state) => state;

export const getActiveEvent = (state) => {
  const eventId = state.get('activeEvent');
  return state.getIn(['events', eventId], false)
};

export const getEventById = (state, eventId) => state.getIn(['events', eventId], false);

export const getEvents = createSelector(
  [getState],
  (state) => state.get('events') || new Map(),
);

export const getEventsAsList = createSelector(
  [getEvents],
  (eventsAsMap) => eventsAsMap.toList(),
);