import { createSelector } from 'reselect';
import { RootState, FetchStatus, BrokersState } from 'redux/interfaces';
import { createFetchingSelector } from 'redux/reducers/loader/selectors';

const brokersState = ({ brokers }: RootState): BrokersState => brokers;

const getBrokerListFetchingStatus = createFetchingSelector('GET_BROKERS');

export const getIsBrokerListFetched = createSelector(
  getBrokerListFetchingStatus,
  (status) => status === FetchStatus.fetched,
);

const getBrokerList = createSelector(brokersState, ({ items }) => items);

export const getBrokerCount = createSelector(brokersState, ({ brokerCount }) => brokerCount);
export const getZooKeeperStatus = createSelector(brokersState, ({ zooKeeperStatus }) => zooKeeperStatus);
export const getActiveControllers = createSelector(brokersState, ({ activeControllers }) => activeControllers);
export const getOnlinePartitionCount = createSelector(brokersState, ({ onlinePartitionCount }) => onlinePartitionCount);
export const getOfflinePartitionCount = createSelector(brokersState, ({ offlinePartitionCount }) => offlinePartitionCount);
export const getInSyncReplicasCount = createSelector(brokersState, ({ inSyncReplicasCount }) => inSyncReplicasCount);
export const getOutOfSyncReplicasCount = createSelector(brokersState, ({ outOfSyncReplicasCount }) => outOfSyncReplicasCount);
export const getUnderReplicatedPartitionCount = createSelector(brokersState, ({ underReplicatedPartitionCount }) => underReplicatedPartitionCount);