// Copyright 2017-2021 @polkadot/app-democracy authors & contributors
// SPDX-License-Identifier: Apache-2.0

import { useMemo } from 'react';

import { BN, bnToBn } from '@polkadot/util';

import { createNamedHook } from './createNamedHook';
import { useBlockTime } from './useBlockTime';

const A_DAY = new BN(24 * 60 * 60 * 1000);

function useBlocksPerDaysImpl (days: BN | number = 1): BN {
  const [blockTime] = useBlockTime();

  return useMemo(
    () => A_DAY.mul(bnToBn(days)).divn(blockTime),
    [blockTime, days]
  );
}

export const useBlocksPerDays = createNamedHook('useBlocksPerDays', useBlocksPerDaysImpl);