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53 lines
1.8 KiB
53 lines
1.8 KiB
3 years ago
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import BigNumber from 'bignumber.js';
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import { addHexPrefix } from 'ethereumjs-util';
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import { multiplyCurrencies } from '../../../shared/modules/conversion.utils';
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import { bnGreaterThan } from './util';
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import { hexWEIToDecGWEI } from './conversions.util';
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export const gasEstimateGreaterThanGasUsedPlusTenPercent = (
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transaction,
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gasFeeEstimates,
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estimate,
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) => {
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let { maxFeePerGas: maxFeePerGasInTransaction } = transaction.txParams;
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maxFeePerGasInTransaction = new BigNumber(
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hexWEIToDecGWEI(addTenPercentAndRound(maxFeePerGasInTransaction)),
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);
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const maxFeePerGasFromEstimate =
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gasFeeEstimates[estimate]?.suggestedMaxFeePerGas;
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return bnGreaterThan(maxFeePerGasFromEstimate, maxFeePerGasInTransaction);
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};
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/**
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* Simple helper to save on duplication to multiply the supplied wei hex string
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* by 1.10 to get bare minimum new gas fee.
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*
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* @param {string | undefined} hexStringValue - hex value in wei to be incremented
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* @returns {string | undefined} - hex value in WEI 10% higher than the param.
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*/
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export function addTenPercent(hexStringValue, conversionOptions = {}) {
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if (hexStringValue === undefined) return undefined;
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return addHexPrefix(
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multiplyCurrencies(hexStringValue, 1.1, {
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toNumericBase: 'hex',
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multiplicandBase: 16,
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multiplierBase: 10,
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numberOfDecimals: 0,
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...conversionOptions,
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}),
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);
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}
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/**
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* Simple helper to save on duplication to multiply the supplied wei hex string
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* by 1.10 to get bare minimum new gas fee.
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*
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* @param {string | undefined} hexStringValue - hex value in wei to be incremented
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* @returns {string | undefined} - hex value in WEI 10% higher than the param.
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*/
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export function addTenPercentAndRound(hexStringValue) {
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return addTenPercent(hexStringValue, { numberOfDecimals: 0 });
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}
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