import { Map as ImmutableMap } from 'immutable'; import { HEIGHT_CACHE_SET, HEIGHT_CACHE_CLEAR } from '../actions/height_cache'; const initialState = ImmutableMap(); const setHeight = (state, key, id, height) => { return state.update(key, ImmutableMap(), map => map.set(id, height)); }; const clearHeights = () => { return ImmutableMap(); }; export default function statuses(state = initialState, action) { switch(action.type) { case HEIGHT_CACHE_SET: return setHeight(state, action.key, action.id, action.height); case HEIGHT_CACHE_CLEAR: return clearHeights(); default: return state; } };