2081464de8
* first commit * finish * InputMegaGas, use BN consts' * update util' * tags issue * manifest * import bn_zero * rm * restore contract tags * fix tags onClose * sec to ms * ms -> sec Co-authored-by: Jaco Greeff <jacogr@gmail.com>
37 lines
1.2 KiB
TypeScript
37 lines
1.2 KiB
TypeScript
// Copyright 2017-2020 @polkadot/react-hooks 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 { UseWeight } from './types';
|
|
|
|
import BN from 'bn.js';
|
|
import { useMemo, useState } from 'react';
|
|
import { useBlockTime } from '@polkadot/react-hooks';
|
|
import { BN_ZERO } from '@polkadot/util';
|
|
|
|
const BN_MILLION = new BN(1e6);
|
|
|
|
export default function useWeight (initialValue: BN = BN_MILLION): UseWeight {
|
|
const [blockTime] = useBlockTime();
|
|
const [megaGas, setMegaGas] = useState<BN | undefined>(initialValue);
|
|
const [executionTime, isValid, percentage, weight] = useMemo(
|
|
(): [number, boolean, number, BN] => {
|
|
if (!megaGas) {
|
|
return [0, false, 0, BN_ZERO];
|
|
}
|
|
|
|
const weight = megaGas.mul(BN_MILLION);
|
|
const executionTime = megaGas.toNumber() / 1e6;
|
|
const percentage = Math.round((executionTime / (blockTime / 1000)) * 100);
|
|
const isValid = !megaGas.isZero() && percentage < 100;
|
|
|
|
return [executionTime, isValid, percentage, weight];
|
|
},
|
|
[blockTime, megaGas]
|
|
);
|
|
|
|
return {
|
|
executionTime, isValid, megaGas: megaGas || BN_ZERO, percentage, setMegaGas, weight
|
|
};
|
|
}
|