36 lines
1.2 KiB
TypeScript
36 lines
1.2 KiB
TypeScript
// Copyright 2017-2020 @polkadot/react-query authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { Moment } from '@polkadot/types/interfaces';
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import { BareProps } from '@polkadot/react-api/types';
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import React from 'react';
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import { useApi, useCall } from '@polkadot/react-hooks';
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import { formatNumber } from '@polkadot/util';
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interface Props extends BareProps {
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children?: React.ReactNode;
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label?: React.ReactNode;
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}
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export default function TimePeriod ({ children, className, label, style }: Props): React.ReactElement<Props> {
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const { api } = useApi();
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const minimumPeriod = api.consts?.timestamp?.minimumPeriod || useCall<Moment>(api.query.timestamp.minimumPeriod, []);
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return (
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<div
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className={className}
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style={style}
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>
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{label || ''}{
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api.consts?.babe?.expectedBlockTime
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? `${formatNumber(api.consts.babe.expectedBlockTime.toNumber() / 1000)}s`
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: minimumPeriod
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? `${formatNumber(minimumPeriod.gtn(1000) ? (minimumPeriod.toNumber() / 500) : (minimumPeriod.toNumber() * 2))}s`
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: '-'
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}{children}
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</div>
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);
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}
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