ghost-portal/packages/react-query/src/TimePeriod.tsx
Jaco Greeff 51fcab9fc8
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2019-09-19 15:30:51 +02:00

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TypeScript

/* eslint-disable @typescript-eslint/camelcase */
// Copyright 2017-2019 @polkadot/react-query authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
import { Moment } from '@polkadot/types/interfaces';
import { BareProps, CallProps } from '@polkadot/react-api/types';
import React from 'react';
import { withCalls } from '@polkadot/react-api';
import { formatNumber } from '@polkadot/util';
interface Props extends BareProps, CallProps {
babe_expectedBlockTime?: Moment;
children?: React.ReactNode;
label?: React.ReactNode;
timestamp_minimumPeriod?: Moment;
}
export function TimePeriod ({ babe_expectedBlockTime, children, className, label = '', style, timestamp_minimumPeriod }: Props): React.ReactElement<Props> {
return (
<div
className={className}
style={style}
>
{label}{
babe_expectedBlockTime
? `${formatNumber(babe_expectedBlockTime.toNumber() / 1000)}s`
: timestamp_minimumPeriod
? `${formatNumber(timestamp_minimumPeriod.gtn(1000) ? (timestamp_minimumPeriod.toNumber() / 500) : (timestamp_minimumPeriod.toNumber() * 2))}s`
: '-'
}{children}
</div>
);
}
// NOTE we are not combining this into one with a fallback, it becomes slightly tricky.
// There must be a cleaner way with this logic, but as of now it works on Alex & Kusama
// - babe bas the exact value in miliseconds
// - non-babe on 2.x has the value in miliseconds (not catered for here)
// - anything non-babe, i.e. Aura, needs to be multiplied by 2
export default withCalls<Props>(
// substrate 2.x: consts.babe.expectedBlockTime
'consts.babe.expectedBlockTime',
// substrate 1.x: 'query.timestamp.blockPeriod'
['consts.timestamp.minimumPeriod', {
fallbacks: ['query.timestamp.minimumPeriod']
}]
)(TimePeriod);