61 lines
1.5 KiB
TypeScript
61 lines
1.5 KiB
TypeScript
// Copyright 2017-2019 @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 { BareProps } from '@polkadot/react-api/types';
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import BN from 'bn.js';
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import React, { useState } from 'react';
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import styled from 'styled-components';
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import { Compact } from '@polkadot/types';
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import { formatBalance } 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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value?: Compact<any> | BN | string | null;
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}
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// for million, 2 * 3-grouping + comma
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const M_LENGTH = 6 + 1;
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function format (value: Compact<any> | BN | string, currency: string): string {
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const [prefix, postfix] = formatBalance(value, { forceUnit: '-', withSi: false }).split('.');
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if (prefix.length > M_LENGTH) {
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return formatBalance(value);
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}
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return `${prefix}.${`000${postfix || ''}`.slice(-3)} ${currency}`;
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}
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export function FormatBalance ({ children, className, label = '', value }: Props): React.ReactElement<Props> {
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const [currency] = useState(formatBalance.getDefaults().unit);
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return (
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<div className={className}>
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{label}{
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value
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? format(value, currency)
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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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export default styled(FormatBalance)`
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display: inline-block;
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vertical-align: baseline;
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* {
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vertical-align: baseline;
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}
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> label,
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> .label {
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display: inline-block;
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margin-right: 0.25rem;
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vertical-align: baseline;
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}
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`;
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