mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-21 17:37:01 +01:00
Complete level 36 migration of TypeScript by converting conversion.utils.js and deprecate old conversion util (#17262)
This commit is contained in:
Brad Decker
GitHub
parent
0bf6aeb5f5
commit
f29683cc0a
@ -1,452 +0,0 @@
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/**
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* Currency Conversion Utility
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* This utility function can be used for converting currency related values within metamask.
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* The caller should be able to pass it a value, along with information about the value's
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* numeric base, denomination and currency, and the desired numeric base, denomination and
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* currency. It should return a single value.
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*
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* @param {(number | string | BN)} value - The value to convert.
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* @param {object} [options] - Options to specify details of the conversion
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* @param {string} [options.fromCurrency = 'ETH' | 'USD'] - The currency of the passed value
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* @param {string} [options.toCurrency = 'ETH' | 'USD'] - The desired currency of the result
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* @param {string} [options.fromNumericBase = 'hex' | 'dec' | 'BN'] - The numeric basic of the passed value.
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* @param {string} [options.toNumericBase = 'hex' | 'dec' | 'BN'] - The desired numeric basic of the result.
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* @param {string} [options.fromDenomination = 'WEI'] - The denomination of the passed value
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* @param {string} [options.numberOfDecimals] - The desired number of decimals in the result
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* @param {string} [options.roundDown] - The desired number of decimals to round down to
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* @param {number} [options.conversionRate] - The rate to use to make the fromCurrency -> toCurrency conversion
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* @returns {(number | string | BN)}
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*
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* The utility passes value along with the options as a single object to the `converter` function.
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* `converter` conditional modifies the supplied `value` property, depending
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* on the accompanying options.
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*/
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import BigNumber from 'bignumber.js';
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import { addHexPrefix, BN } from 'ethereumjs-util';
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import { ETH, WEI } from '../../ui/helpers/constants/common';
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import { stripHexPrefix } from './hexstring-utils';
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// Big Number Constants
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const BIG_NUMBER_WEI_MULTIPLIER = new BigNumber('1000000000000000000');
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const BIG_NUMBER_GWEI_MULTIPLIER = new BigNumber('1000000000');
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const BIG_NUMBER_ETH_MULTIPLIER = new BigNumber('1');
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// Setter Maps
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const toBigNumber = {
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hex: (n) => new BigNumber(stripHexPrefix(n), 16),
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dec: (n) => new BigNumber(String(n), 10),
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BN: (n) => new BigNumber(n.toString(16), 16),
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};
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const toNormalizedDenomination = {
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WEI: (bigNumber) => bigNumber.div(BIG_NUMBER_WEI_MULTIPLIER),
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GWEI: (bigNumber) => bigNumber.div(BIG_NUMBER_GWEI_MULTIPLIER),
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ETH: (bigNumber) => bigNumber.div(BIG_NUMBER_ETH_MULTIPLIER),
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};
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const toSpecifiedDenomination = {
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WEI: (bigNumber) => bigNumber.times(BIG_NUMBER_WEI_MULTIPLIER).round(),
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GWEI: (bigNumber) => bigNumber.times(BIG_NUMBER_GWEI_MULTIPLIER).round(9),
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ETH: (bigNumber) => bigNumber.times(BIG_NUMBER_ETH_MULTIPLIER).round(9),
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};
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const baseChange = {
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hex: (n) => n.toString(16),
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dec: (n) => new BigNumber(n).toString(10),
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BN: (n) => new BN(n.toString(16)),
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};
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// Utility function for checking base types
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const isValidBase = (base) => {
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return Number.isInteger(base) && base > 1;
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};
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/**
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* Defines the base type of numeric value
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*
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* @typedef {('hex' | 'dec' | 'BN')} NumericBase
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*/
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/**
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* Defines which type of denomination a value is in
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*
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* @typedef {('WEI' | 'GWEI' | 'ETH')} EthDenomination
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*/
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/**
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* Utility method to convert a value between denominations, formats and currencies.
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*
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* @param {object} input
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* @param {string | BigNumber} input.value
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* @param {NumericBase} input.fromNumericBase
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* @param {EthDenomination} [input.fromDenomination]
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* @param {string} [input.fromCurrency]
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* @param {NumericBase} input.toNumericBase
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* @param {EthDenomination} [input.toDenomination]
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* @param {string} [input.toCurrency]
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* @param {number} [input.numberOfDecimals]
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* @param {number} [input.conversionRate]
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* @param {boolean} [input.invertConversionRate]
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* @param {string} [input.roundDown]
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*/
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const converter = ({
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value,
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fromNumericBase,
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fromDenomination,
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fromCurrency,
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toNumericBase,
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toDenomination,
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toCurrency,
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numberOfDecimals,
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conversionRate,
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invertConversionRate,
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roundDown,
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}) => {
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let convertedValue = fromNumericBase
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? toBigNumber[fromNumericBase](value)
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: value;
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if (fromDenomination) {
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convertedValue = toNormalizedDenomination[fromDenomination](convertedValue);
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}
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if (fromCurrency !== toCurrency) {
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if (conversionRate === null || conversionRate === undefined) {
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throw new Error(
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`Converting from ${fromCurrency} to ${toCurrency} requires a conversionRate, but one was not provided`,
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);
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}
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let rate = toBigNumber.dec(conversionRate);
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if (invertConversionRate) {
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rate = new BigNumber(1.0).div(conversionRate);
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}
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convertedValue = convertedValue.times(rate);
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}
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if (toDenomination) {
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convertedValue = toSpecifiedDenomination[toDenomination](convertedValue);
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}
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if (numberOfDecimals !== undefined && numberOfDecimals !== null) {
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convertedValue = convertedValue.round(
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numberOfDecimals,
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BigNumber.ROUND_HALF_DOWN,
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);
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}
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if (roundDown) {
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convertedValue = convertedValue.round(roundDown, BigNumber.ROUND_DOWN);
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}
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if (toNumericBase) {
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convertedValue = baseChange[toNumericBase](convertedValue);
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}
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return convertedValue;
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};
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const conversionUtil = (
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value,
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{
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fromCurrency = null,
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toCurrency = fromCurrency,
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fromNumericBase,
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toNumericBase,
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fromDenomination,
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toDenomination,
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numberOfDecimals,
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conversionRate,
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invertConversionRate,
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},
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) => {
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if (fromCurrency !== toCurrency && !conversionRate) {
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return 0;
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}
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return converter({
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fromCurrency,
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toCurrency,
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fromNumericBase,
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toNumericBase,
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fromDenomination,
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toDenomination,
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numberOfDecimals,
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conversionRate,
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invertConversionRate,
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value: value || '0',
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});
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};
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const getBigNumber = (value, base) => {
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if (!isValidBase(base)) {
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throw new Error('Must specify valid base');
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}
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// We don't include 'number' here, because BigNumber will throw if passed
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// a number primitive it considers unsafe.
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if (typeof value === 'string' || value instanceof BigNumber) {
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return new BigNumber(value, base);
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}
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return new BigNumber(String(value), base);
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};
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const addCurrencies = (a, b, options = {}) => {
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const { aBase, bBase, ...conversionOptions } = options;
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if (!isValidBase(aBase) || !isValidBase(bBase)) {
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throw new Error('Must specify valid aBase and bBase');
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}
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const value = getBigNumber(a, aBase).add(getBigNumber(b, bBase));
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return converter({
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value,
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...conversionOptions,
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});
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};
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const subtractCurrencies = (a, b, options = {}) => {
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const { aBase, bBase, ...conversionOptions } = options;
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if (!isValidBase(aBase) || !isValidBase(bBase)) {
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throw new Error('Must specify valid aBase and bBase');
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}
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const value = getBigNumber(a, aBase).minus(getBigNumber(b, bBase));
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return converter({
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value,
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...conversionOptions,
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});
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};
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const multiplyCurrencies = (a, b, options = {}) => {
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const { multiplicandBase, multiplierBase, ...conversionOptions } = options;
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if (!isValidBase(multiplicandBase) || !isValidBase(multiplierBase)) {
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throw new Error('Must specify valid multiplicandBase and multiplierBase');
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}
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const value = getBigNumber(a, multiplicandBase).times(
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getBigNumber(b, multiplierBase),
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);
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return converter({
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value,
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...conversionOptions,
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});
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};
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const divideCurrencies = (a, b, options = {}) => {
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const { dividendBase, divisorBase, ...conversionOptions } = options;
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if (!isValidBase(dividendBase) || !isValidBase(divisorBase)) {
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throw new Error('Must specify valid dividendBase and divisorBase');
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}
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const value = getBigNumber(a, dividendBase).div(getBigNumber(b, divisorBase));
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return converter({
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value,
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...conversionOptions,
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});
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};
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const conversionGreaterThan = ({ ...firstProps }, { ...secondProps }) => {
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const firstValue = converter({ ...firstProps });
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const secondValue = converter({ ...secondProps });
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return firstValue.gt(secondValue);
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};
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const conversionLessThan = ({ ...firstProps }, { ...secondProps }) => {
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const firstValue = converter({ ...firstProps });
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const secondValue = converter({ ...secondProps });
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return firstValue.lt(secondValue);
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};
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const conversionMax = ({ ...firstProps }, { ...secondProps }) => {
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const firstIsGreater = conversionGreaterThan(
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{ ...firstProps },
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{ ...secondProps },
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);
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return firstIsGreater ? firstProps.value : secondProps.value;
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};
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const conversionGTE = ({ ...firstProps }, { ...secondProps }) => {
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const firstValue = converter({ ...firstProps });
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const secondValue = converter({ ...secondProps });
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return firstValue.greaterThanOrEqualTo(secondValue);
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};
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const conversionLTE = ({ ...firstProps }, { ...secondProps }) => {
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const firstValue = converter({ ...firstProps });
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const secondValue = converter({ ...secondProps });
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return firstValue.lessThanOrEqualTo(secondValue);
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};
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const toNegative = (n, options = {}) => {
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return multiplyCurrencies(n, -1, options);
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};
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function decGWEIToHexWEI(decGWEI) {
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return conversionUtil(decGWEI, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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fromDenomination: 'GWEI',
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toDenomination: 'WEI',
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});
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}
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export function subtractHexes(aHexWEI, bHexWEI) {
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return subtractCurrencies(aHexWEI, bHexWEI, {
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aBase: 16,
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bBase: 16,
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toNumericBase: 'hex',
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numberOfDecimals: 6,
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});
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}
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export function addHexes(aHexWEI, bHexWEI) {
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return addCurrencies(aHexWEI, bHexWEI, {
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aBase: 16,
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bBase: 16,
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toNumericBase: 'hex',
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numberOfDecimals: 6,
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});
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}
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export function decWEIToDecETH(hexWEI) {
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return conversionUtil(hexWEI, {
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fromNumericBase: 'dec',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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toDenomination: 'ETH',
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});
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}
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export function hexWEIToDecETH(hexWEI) {
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return conversionUtil(hexWEI, {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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toDenomination: 'ETH',
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});
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}
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export function decEthToConvertedCurrency(
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ethTotal,
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convertedCurrency,
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conversionRate,
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) {
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return conversionUtil(ethTotal, {
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fromNumericBase: 'dec',
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toNumericBase: 'dec',
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fromCurrency: 'ETH',
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toCurrency: convertedCurrency,
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numberOfDecimals: 2,
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conversionRate,
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});
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}
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export function getWeiHexFromDecimalValue({
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value,
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fromCurrency,
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conversionRate,
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fromDenomination,
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invertConversionRate,
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}) {
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return conversionUtil(value, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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toCurrency: ETH,
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fromCurrency,
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conversionRate,
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invertConversionRate,
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fromDenomination,
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toDenomination: WEI,
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});
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}
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/**
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* Converts a BN object to a hex string with a '0x' prefix
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*
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* @param {BN} inputBn - The BN to convert to a hex string
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* @returns {string} A '0x' prefixed hex string
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*/
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export function bnToHex(inputBn) {
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return addHexPrefix(inputBn.toString(16));
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}
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export function getValueFromWeiHex({
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value,
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fromCurrency = ETH,
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toCurrency,
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conversionRate,
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numberOfDecimals,
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toDenomination,
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}) {
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return conversionUtil(value, {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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fromCurrency,
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toCurrency,
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numberOfDecimals,
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fromDenomination: WEI,
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toDenomination,
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conversionRate,
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});
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}
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export function sumHexes(...args) {
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const total = args.reduce((acc, hexAmount) => {
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return addCurrencies(acc, hexAmount, {
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toNumericBase: 'hex',
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aBase: 16,
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bBase: 16,
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});
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});
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return addHexPrefix(total);
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}
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export function hexWEIToDecGWEI(decGWEI) {
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return conversionUtil(decGWEI, {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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toDenomination: 'GWEI',
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});
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}
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export function decimalToHex(decimal) {
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return conversionUtil(decimal, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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});
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}
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export function hexToDecimal(hexValue) {
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return conversionUtil(hexValue, {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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});
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}
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export {
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conversionUtil,
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addCurrencies,
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multiplyCurrencies,
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conversionGreaterThan,
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conversionLessThan,
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conversionGTE,
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conversionLTE,
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conversionMax,
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toNegative,
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subtractCurrencies,
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decGWEIToHexWEI,
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toBigNumber,
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toNormalizedDenomination,
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divideCurrencies,
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};
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@ -1,212 +1,11 @@
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import BigNumber from 'bignumber.js';
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import { ETH } from '../../ui/helpers/constants/common';
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import { EtherDenomination } from '../constants/common';
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import {
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addCurrencies,
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conversionUtil,
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decWEIToDecETH,
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divideCurrencies,
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getValueFromWeiHex,
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getWeiHexFromDecimalValue,
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} from './conversion.utils';
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describe('conversion utils', () => {
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describe('addCurrencies()', () => {
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it('add whole numbers', () => {
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const result = addCurrencies(3, 9, {
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aBase: 10,
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bBase: 10,
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});
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expect(result.toNumber()).toStrictEqual(12);
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});
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it('add decimals', () => {
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const result = addCurrencies(1.3, 1.9, {
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aBase: 10,
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bBase: 10,
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});
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expect(result.toNumber()).toStrictEqual(3.2);
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});
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it('add repeating decimals', () => {
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const result = addCurrencies(1 / 3, 1 / 9, {
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aBase: 10,
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bBase: 10,
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});
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expect(result.toNumber()).toStrictEqual(0.4444444444444444);
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});
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});
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describe('conversionUtil', () => {
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it('returns expected types', () => {
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const conv1 = conversionUtil(1000000000000000000, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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});
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const conv2 = conversionUtil(1, {
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fromNumericBase: 'dec',
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fromDenomination: 'ETH',
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toDenomination: 'WEI',
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});
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expect(typeof conv1 === 'string').toStrictEqual(true);
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expect(conv2 instanceof BigNumber).toStrictEqual(true);
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});
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it('converts from dec to hex', () => {
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expect(
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conversionUtil('1000000000000000000', {
|
||||
fromNumericBase: 'dec',
|
||||
toNumericBase: 'hex',
|
||||
}),
|
||||
).toStrictEqual('de0b6b3a7640000');
|
||||
expect(
|
||||
conversionUtil('1500000000000000000', {
|
||||
fromNumericBase: 'dec',
|
||||
toNumericBase: 'hex',
|
||||
}),
|
||||
).toStrictEqual('14d1120d7b160000');
|
||||
});
|
||||
it('converts hex formatted numbers to dec', () => {
|
||||
expect(
|
||||
conversionUtil('0xde0b6b3a7640000', {
|
||||
fromNumericBase: 'hex',
|
||||
toNumericBase: 'dec',
|
||||
}),
|
||||
).toStrictEqual('1000000000000000000');
|
||||
expect(
|
||||
conversionUtil('0x14d1120d7b160000', {
|
||||
fromNumericBase: 'hex',
|
||||
toNumericBase: 'dec',
|
||||
}),
|
||||
).toStrictEqual('1500000000000000000');
|
||||
});
|
||||
it('converts WEI to ETH', () => {
|
||||
expect(
|
||||
conversionUtil('0xde0b6b3a7640000', {
|
||||
fromNumericBase: 'hex',
|
||||
toNumericBase: 'dec',
|
||||
fromDenomination: 'WEI',
|
||||
toDenomination: 'ETH',
|
||||
}),
|
||||
).toStrictEqual('1');
|
||||
expect(
|
||||
conversionUtil('0x14d1120d7b160000', {
|
||||
fromNumericBase: 'hex',
|
||||
toNumericBase: 'dec',
|
||||
fromDenomination: 'WEI',
|
||||
toDenomination: 'ETH',
|
||||
}),
|
||||
).toStrictEqual('1.5');
|
||||
});
|
||||
it('converts ETH to WEI', () => {
|
||||
expect(
|
||||
conversionUtil('1', {
|
||||
fromNumericBase: 'dec',
|
||||
fromDenomination: 'ETH',
|
||||
toDenomination: 'WEI',
|
||||
}).toNumber(),
|
||||
).toStrictEqual(1000000000000000000);
|
||||
expect(
|
||||
conversionUtil('1.5', {
|
||||
fromNumericBase: 'dec',
|
||||
fromDenomination: 'ETH',
|
||||
toDenomination: 'WEI',
|
||||
}).toNumber(),
|
||||
).toStrictEqual(1500000000000000000);
|
||||
});
|
||||
it('converts ETH to GWEI', () => {
|
||||
expect(
|
||||
conversionUtil('1', {
|
||||
fromNumericBase: 'dec',
|
||||
fromDenomination: 'ETH',
|
||||
toDenomination: 'GWEI',
|
||||
}).toNumber(),
|
||||
).toStrictEqual(1000000000);
|
||||
expect(
|
||||
conversionUtil('1.5', {
|
||||
fromNumericBase: 'dec',
|
||||
fromDenomination: 'ETH',
|
||||
toDenomination: 'GWEI',
|
||||
}).toNumber(),
|
||||
).toStrictEqual(1500000000);
|
||||
});
|
||||
it('converts ETH to USD', () => {
|
||||
expect(
|
||||
conversionUtil('1', {
|
||||
fromNumericBase: 'dec',
|
||||
toNumericBase: 'dec',
|
||||
toCurrency: 'usd',
|
||||
conversionRate: 468.58,
|
||||
numberOfDecimals: 2,
|
||||
}),
|
||||
).toStrictEqual('468.58');
|
||||
expect(
|
||||
conversionUtil('1.5', {
|
||||
fromNumericBase: 'dec',
|
||||
toNumericBase: 'dec',
|
||||
toCurrency: 'usd',
|
||||
conversionRate: 468.58,
|
||||
numberOfDecimals: 2,
|
||||
}),
|
||||
).toStrictEqual('702.87');
|
||||
});
|
||||
it('converts USD to ETH', () => {
|
||||
expect(
|
||||
conversionUtil('468.58', {
|
||||
fromNumericBase: 'dec',
|
||||
toNumericBase: 'dec',
|
||||
toCurrency: 'usd',
|
||||
conversionRate: 468.58,
|
||||
numberOfDecimals: 2,
|
||||
invertConversionRate: true,
|
||||
}),
|
||||
).toStrictEqual('1');
|
||||
expect(
|
||||
conversionUtil('702.87', {
|
||||
fromNumericBase: 'dec',
|
||||
toNumericBase: 'dec',
|
||||
toCurrency: 'usd',
|
||||
conversionRate: 468.58,
|
||||
numberOfDecimals: 2,
|
||||
invertConversionRate: true,
|
||||
}),
|
||||
).toStrictEqual('1.5');
|
||||
});
|
||||
});
|
||||
|
||||
describe('divideCurrencies()', () => {
|
||||
it('should correctly divide decimal values', () => {
|
||||
const result = divideCurrencies(9, 3, {
|
||||
dividendBase: 10,
|
||||
divisorBase: 10,
|
||||
});
|
||||
expect(result.toNumber()).toStrictEqual(3);
|
||||
});
|
||||
|
||||
it('should correctly divide hexadecimal values', () => {
|
||||
const result = divideCurrencies(1000, 0xa, {
|
||||
dividendBase: 16,
|
||||
divisorBase: 16,
|
||||
});
|
||||
expect(result.toNumber()).toStrictEqual(0x100);
|
||||
});
|
||||
|
||||
it('should correctly divide hexadecimal value from decimal value', () => {
|
||||
const result = divideCurrencies(0x3e8, 0xa, {
|
||||
dividendBase: 16,
|
||||
divisorBase: 16,
|
||||
});
|
||||
expect(result.toNumber()).toStrictEqual(0x100);
|
||||
});
|
||||
|
||||
it('should throw error for wrong base value', () => {
|
||||
expect(() => {
|
||||
divideCurrencies(0x3e8, 0xa, {
|
||||
dividendBase: 10.5,
|
||||
divisorBase: 7,
|
||||
});
|
||||
}).toThrow('Must specify valid dividendBase and divisorBase');
|
||||
});
|
||||
});
|
||||
|
||||
describe('decWEIToDecETH', () => {
|
||||
it('converts 10000000000000 WEI to ETH', () => {
|
||||
const ethDec = decWEIToDecETH('10000000000000');
|
||||
@ -223,11 +22,18 @@ describe('conversion utils', () => {
|
||||
it('should correctly convert 0 in ETH', () => {
|
||||
const weiValue = getWeiHexFromDecimalValue({
|
||||
value: '0',
|
||||
fromCurrency: ETH,
|
||||
fromDenomination: ETH,
|
||||
fromDenomination: EtherDenomination.ETH,
|
||||
});
|
||||
expect(weiValue).toStrictEqual('0');
|
||||
});
|
||||
|
||||
it('should correctly convert 10 in ETH to 8ac7230489e80000 (10000000000000000000) wei', () => {
|
||||
const weiValue = getWeiHexFromDecimalValue({
|
||||
value: '10',
|
||||
fromDenomination: EtherDenomination.ETH,
|
||||
});
|
||||
expect(weiValue).toStrictEqual('8ac7230489e80000');
|
||||
});
|
||||
});
|
||||
|
||||
describe('getValueFromWeiHex', () => {
|
||||
@ -235,7 +41,6 @@ describe('conversion utils', () => {
|
||||
const ethTransactionAmount = getValueFromWeiHex({
|
||||
value: '0xde0b6b3a7640000',
|
||||
toCurrency: 'ETH',
|
||||
conversionRate: 468.58,
|
||||
numberOfDecimals: 6,
|
||||
});
|
||||
|
||||
|
||||
172
shared/modules/conversion.utils.ts
Normal file
172
shared/modules/conversion.utils.ts
Normal file
@ -0,0 +1,172 @@
|
||||
import { BigNumber } from 'bignumber.js';
|
||||
|
||||
import { addHexPrefix, BN } from 'ethereumjs-util';
|
||||
import { EtherDenomination } from '../constants/common';
|
||||
import { Numeric, NumericValue } from './Numeric';
|
||||
|
||||
export function decGWEIToHexWEI(decGWEI: number) {
|
||||
return new Numeric(decGWEI, 10, EtherDenomination.GWEI)
|
||||
.toBase(16)
|
||||
.toDenomination(EtherDenomination.WEI)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function subtractHexes(aHexWEI: string, bHexWEI: string) {
|
||||
return new Numeric(aHexWEI, 16)
|
||||
.minus(new Numeric(bHexWEI, 16))
|
||||
.round(6, BigNumber.ROUND_HALF_DOWN)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function addHexes(aHexWEI: string, bHexWEI: string) {
|
||||
return new Numeric(aHexWEI, 16)
|
||||
.add(new Numeric(bHexWEI, 16))
|
||||
.round(6, BigNumber.ROUND_HALF_DOWN)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function decWEIToDecETH(decWEI: string) {
|
||||
return new Numeric(decWEI, 10, EtherDenomination.WEI)
|
||||
.toDenomination(EtherDenomination.ETH)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function hexWEIToDecETH(hexWEI: string) {
|
||||
return new Numeric(hexWEI, 16, EtherDenomination.WEI)
|
||||
.toDenomination(EtherDenomination.ETH)
|
||||
.toBase(10)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function decEthToConvertedCurrency(
|
||||
ethTotal: NumericValue,
|
||||
convertedCurrency?: string,
|
||||
conversionRate?: number,
|
||||
) {
|
||||
let numeric = new Numeric(ethTotal, 10, EtherDenomination.ETH);
|
||||
|
||||
if (convertedCurrency !== EtherDenomination.ETH) {
|
||||
numeric = numeric.applyConversionRate(conversionRate);
|
||||
}
|
||||
|
||||
return numeric.round(2);
|
||||
}
|
||||
|
||||
export function getWeiHexFromDecimalValue({
|
||||
value,
|
||||
conversionRate = 1,
|
||||
fromDenomination,
|
||||
fromCurrency,
|
||||
invertConversionRate = false,
|
||||
}: {
|
||||
value: NumericValue;
|
||||
conversionRate?: number;
|
||||
fromDenomination?: EtherDenomination;
|
||||
fromCurrency?: string;
|
||||
invertConversionRate?: boolean;
|
||||
}) {
|
||||
let numeric = new Numeric(value, 10, fromDenomination);
|
||||
if (fromCurrency !== EtherDenomination.ETH) {
|
||||
numeric = numeric.applyConversionRate(conversionRate, invertConversionRate);
|
||||
}
|
||||
return numeric.toBase(16).toDenomination(EtherDenomination.WEI).toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts a BN object to a hex string with a '0x' prefix
|
||||
*
|
||||
* @param inputBn - The BN to convert to a hex string
|
||||
* @returns A '0x' prefixed hex string
|
||||
*/
|
||||
export function bnToHex(inputBn: BN) {
|
||||
return addHexPrefix(inputBn.toString(16));
|
||||
}
|
||||
|
||||
export function getEthConversionFromWeiHex({
|
||||
value,
|
||||
fromCurrency = EtherDenomination.ETH,
|
||||
conversionRate,
|
||||
numberOfDecimals = 6,
|
||||
}: {
|
||||
value: NumericValue;
|
||||
conversionRate?: number;
|
||||
fromCurrency?: EtherDenomination | string;
|
||||
numberOfDecimals?: number;
|
||||
}) {
|
||||
const denominations = [
|
||||
EtherDenomination.ETH,
|
||||
EtherDenomination.GWEI,
|
||||
EtherDenomination.WEI,
|
||||
];
|
||||
|
||||
let nonZeroDenomination;
|
||||
|
||||
for (let i = 0; i < denominations.length; i++) {
|
||||
const convertedValue = getValueFromWeiHex({
|
||||
value,
|
||||
conversionRate,
|
||||
fromCurrency,
|
||||
toCurrency: fromCurrency,
|
||||
numberOfDecimals,
|
||||
toDenomination: denominations[i],
|
||||
});
|
||||
|
||||
if (convertedValue !== '0' || i === denominations.length - 1) {
|
||||
nonZeroDenomination = `${convertedValue} ${denominations[i]}`;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return nonZeroDenomination;
|
||||
}
|
||||
|
||||
export function getValueFromWeiHex({
|
||||
value,
|
||||
fromCurrency = EtherDenomination.ETH,
|
||||
toCurrency,
|
||||
conversionRate,
|
||||
numberOfDecimals,
|
||||
toDenomination = EtherDenomination.ETH,
|
||||
}: {
|
||||
value: NumericValue;
|
||||
fromCurrency?: EtherDenomination | string;
|
||||
toCurrency?: EtherDenomination | string;
|
||||
conversionRate?: number;
|
||||
numberOfDecimals?: number;
|
||||
toDenomination?: EtherDenomination;
|
||||
}) {
|
||||
let numeric = new Numeric(value, 16, EtherDenomination.WEI);
|
||||
if (fromCurrency !== toCurrency) {
|
||||
numeric = numeric.applyConversionRate(conversionRate);
|
||||
}
|
||||
return numeric
|
||||
.toBase(10)
|
||||
.toDenomination(toDenomination)
|
||||
.round(numberOfDecimals, BigNumber.ROUND_HALF_DOWN)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function sumHexes(first: string, ...args: string[]) {
|
||||
const firstValue = new Numeric(first, 16);
|
||||
const total = args.reduce(
|
||||
(acc, hexAmount) => acc.add(new Numeric(hexAmount, 16)),
|
||||
firstValue,
|
||||
);
|
||||
|
||||
return total.toPrefixedHexString();
|
||||
}
|
||||
|
||||
export function hexWEIToDecGWEI(value: number | string | BigNumber | BN) {
|
||||
return new Numeric(value, 16, EtherDenomination.WEI)
|
||||
.toBase(10)
|
||||
.toDenomination(EtherDenomination.GWEI)
|
||||
.toString();
|
||||
}
|
||||
|
||||
export function decimalToHex(decimal: number | string | BigNumber | BN) {
|
||||
return new Numeric(decimal, 10).toBase(16).toString();
|
||||
}
|
||||
|
||||
export function hexToDecimal(hexValue: number | string | BigNumber | BN) {
|
||||
return new Numeric(hexValue, 16).toBase(10).toString();
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user