Relocate conversion utils to shared/modules/conversion.utils.js (#17319)

app/scripts/controllers/detect-tokens.test.js

@@ -9,9 +9,9 @@ import {
   TokensController,
   AssetsContractController,
 } from '@metamask/assets-controllers';
+import { convertHexToDecimal } from '@metamask/controller-utils';
 import { NETWORK_TYPES } from '../../../shared/constants/network';
 import { toChecksumHexAddress } from '../../../shared/modules/hexstring-utils';
-import { hexToDecimal } from '../../../shared/lib/metamask-controller-utils';
 import DetectTokensController from './detect-tokens';
 import NetworkController, { NETWORK_EVENTS } from './network';
 import PreferencesController from './preferences';
@@ -88,7 +88,7 @@ describe('DetectTokensController', function () {
             ...networkState,
             providerConfig: {
               ...networkState.provider,
-              chainId: hexToDecimal(networkState.provider.chainId),
+              chainId: convertHexToDecimal(networkState.provider.chainId),
             },
           };
           return cb(modifiedNetworkState);

app/scripts/controllers/incoming-transactions.js

@@ -2,7 +2,7 @@ import { ObservableStore } from '@metamask/obs-store';
 import log from 'loglevel';
 import BN from 'bn.js';
 import createId from '../../../shared/modules/random-id';
-import { bnToHex, previousValueComparator } from '../lib/util';
+import { previousValueComparator } from '../lib/util';
 import getFetchWithTimeout from '../../../shared/modules/fetch-with-timeout';
 
 import {
@@ -14,6 +14,7 @@ import {
   CHAIN_ID_TO_NETWORK_ID_MAP,
   CHAIN_ID_TO_TYPE_MAP,
 } from '../../../shared/constants/network';
+import { bnToHex } from '../../../shared/modules/conversion.utils';
 
 const fetchWithTimeout = getFetchWithTimeout();
 

app/scripts/controllers/swaps.js

@@ -8,6 +8,7 @@ import {
   conversionUtil,
   decGWEIToHexWEI,
   addCurrencies,
+  sumHexes,
 } from '../../../shared/modules/conversion.utils';
 import {
   DEFAULT_ERC20_APPROVE_GAS,
@@ -25,7 +26,6 @@ import {
 } from '../../../shared/constants/smartTransactions';
 
 import { isSwapsDefaultTokenAddress } from '../../../shared/modules/swaps.utils';
-import { sumHexes } from '../../../ui/helpers/utils/transactions.util';
 
 import {
   fetchTradesInfo as defaultFetchTradesInfo,

app/scripts/controllers/transactions/index.js

@@ -12,7 +12,6 @@ import { merge, pickBy } from 'lodash';
 import cleanErrorStack from '../../lib/cleanErrorStack';
 import {
   hexToBn,
-  bnToHex,
   BnMultiplyByFraction,
   addHexPrefix,
   getChainType,
@@ -33,7 +32,13 @@ import {
   CUSTOM_GAS_ESTIMATE,
   PRIORITY_LEVELS,
 } from '../../../../shared/constants/gas';
-import { decGWEIToHexWEI } from '../../../../shared/modules/conversion.utils';
+import {
+  bnToHex,
+  decGWEIToHexWEI,
+  decimalToHex,
+  hexWEIToDecETH,
+  hexWEIToDecGWEI,
+} from '../../../../shared/modules/conversion.utils';
 import { isSwapsDefaultTokenAddress } from '../../../../shared/modules/swaps.utils';
 import { EVENT } from '../../../../shared/constants/metametrics';
 import {
@@ -50,10 +55,7 @@ import {
 import { ORIGIN_METAMASK } from '../../../../shared/constants/app';
 import {
   calcGasTotal,
-  decimalToHex,
   getSwapsTokensReceivedFromTxMeta,
-  hexWEIToDecETH,
-  hexWEIToDecGWEI,
   TRANSACTION_ENVELOPE_TYPE_NAMES,
 } from '../../../../shared/lib/transactions-controller-utils';
 import TransactionStateManager from './tx-state-manager';

app/scripts/controllers/transactions/tx-gas-utils.js

@@ -2,7 +2,8 @@ import EthQuery from 'ethjs-query';
 import log from 'loglevel';
 import { addHexPrefix } from 'ethereumjs-util';
 import { cloneDeep } from 'lodash';
-import { hexToBn, BnMultiplyByFraction, bnToHex } from '../../lib/util';
+import { hexToBn, BnMultiplyByFraction } from '../../lib/util';
+import { bnToHex } from '../../../../shared/modules/conversion.utils';
 
 /**
  * Result of gas analysis, including either a gas estimate for a successful analysis, or

app/scripts/controllers/transactions/tx-gas-utils.test.js

@@ -1,7 +1,8 @@
 import { strict as assert } from 'assert';
 import { TransactionFactory } from '@ethereumjs/tx';
 import Common from '@ethereumjs/common';
-import { hexToBn, bnToHex } from '../../lib/util';
+import { hexToBn } from '../../lib/util';
+import { bnToHex } from '../../../../shared/modules/conversion.utils';
 import TxUtils from './tx-gas-utils';
 
 describe('txUtils', function () {

app/scripts/lib/util.js

@@ -135,16 +135,6 @@ const addHexPrefix = (str) => {
   return `0x${str}`;
 };
 
-/**
- * Converts a BN object to a hex string with a '0x' prefix
- *
- * @param {BN} inputBn - The BN to convert to a hex string
- * @returns {string} A '0x' prefixed hex string
- */
-function bnToHex(inputBn) {
-  return addHexPrefix(inputBn.toString(16));
-}
-
 function getChainType(chainId) {
   if (chainId === CHAIN_IDS.MAINNET) {
     return 'mainnet';
@@ -172,7 +162,6 @@ export {
   BnMultiplyByFraction,
   checkForError,
   addHexPrefix,
-  bnToHex,
   getChainType,
   checkAlarmExists,
 };

app/scripts/metamask-controller.js

@@ -102,11 +102,9 @@ import { getTokenIdParam } from '../../shared/lib/token-util';
 import { isEqualCaseInsensitive } from '../../shared/modules/string-utils';
 import { parseStandardTokenTransactionData } from '../../shared/modules/transaction.utils';
 import { STATIC_MAINNET_TOKEN_LIST } from '../../shared/constants/tokens';
-import {
+import { getTokenValueParam } from '../../shared/lib/metamask-controller-utils';
-  getTokenValueParam,
-  hexToDecimal,
-} from '../../shared/lib/metamask-controller-utils';
 import { isManifestV3 } from '../../shared/modules/mv3.utils';
+import { hexToDecimal } from '../../shared/modules/conversion.utils';
 import {
   onMessageReceived,
   checkForMultipleVersionsRunning,

shared/lib/metamask-controller-utils.js

@@ -1,12 +1,3 @@
-import { conversionUtil } from '../modules/conversion.utils';
-
-export function hexToDecimal(hexValue) {
-  return conversionUtil(hexValue, {
-    fromNumericBase: 'hex',
-    toNumericBase: 'dec',
-  });
-}
-
 export function getTokenValueParam(tokenData = {}) {
   return tokenData?.args?._value?.toString();
 }

shared/lib/swaps-utils.js

@@ -14,8 +14,8 @@ import { SECOND } from '../constants/time';
 import { isValidHexAddress } from '../modules/hexstring-utils';
 import { isEqualCaseInsensitive } from '../modules/string-utils';
 import { addHexPrefix } from '../../app/scripts/lib/util';
+import { decimalToHex } from '../modules/conversion.utils';
 import fetchWithCache from './fetch-with-cache';
-import { decimalToHex } from './transactions-controller-utils';
 
 const TEST_CHAIN_IDS = [CHAIN_IDS.GOERLI, CHAIN_IDS.LOCALHOST];
 

shared/lib/transactions-controller-utils.js

@@ -1,7 +1,6 @@
 import BigNumber from 'bignumber.js';
 import { TransactionEnvelopeType } from '../constants/transaction';
 import {
-  conversionUtil,
   multiplyCurrencies,
   subtractCurrencies,
 } from '../modules/conversion.utils';
@@ -145,28 +144,3 @@ export const TRANSACTION_ENVELOPE_TYPE_NAMES = {
   FEE_MARKET: 'fee-market',
   LEGACY: 'legacy',
 };
-
-export function hexWEIToDecGWEI(decGWEI) {
-  return conversionUtil(decGWEI, {
-    fromNumericBase: 'hex',
-    toNumericBase: 'dec',
-    fromDenomination: 'WEI',
-    toDenomination: 'GWEI',
-  });
-}
-
-export function decimalToHex(decimal) {
-  return conversionUtil(decimal, {
-    fromNumericBase: 'dec',
-    toNumericBase: 'hex',
-  });
-}
-
-export function hexWEIToDecETH(hexWEI) {
-  return conversionUtil(hexWEI, {
-    fromNumericBase: 'hex',
-    toNumericBase: 'dec',
-    fromDenomination: 'WEI',
-    toDenomination: 'ETH',
-  });
-}

shared/modules/conversion.utils.js

@@ -24,7 +24,8 @@
 
 import BigNumber from 'bignumber.js';
 
-import { BN } from 'ethereumjs-util';
+import { addHexPrefix, BN } from 'ethereumjs-util';
+import { ETH, WEI } from '../../ui/helpers/constants/common';
 
 import { stripHexPrefix } from './hexstring-utils';
 
@@ -298,6 +299,141 @@ function decGWEIToHexWEI(decGWEI) {
   });
 }
 
+export function subtractHexes(aHexWEI, bHexWEI) {
+  return subtractCurrencies(aHexWEI, bHexWEI, {
+    aBase: 16,
+    bBase: 16,
+    toNumericBase: 'hex',
+    numberOfDecimals: 6,
+  });
+}
+
+export function addHexes(aHexWEI, bHexWEI) {
+  return addCurrencies(aHexWEI, bHexWEI, {
+    aBase: 16,
+    bBase: 16,
+    toNumericBase: 'hex',
+    numberOfDecimals: 6,
+  });
+}
+
+export function decWEIToDecETH(hexWEI) {
+  return conversionUtil(hexWEI, {
+    fromNumericBase: 'dec',
+    toNumericBase: 'dec',
+    fromDenomination: 'WEI',
+    toDenomination: 'ETH',
+  });
+}
+
+export function hexWEIToDecETH(hexWEI) {
+  return conversionUtil(hexWEI, {
+    fromNumericBase: 'hex',
+    toNumericBase: 'dec',
+    fromDenomination: 'WEI',
+    toDenomination: 'ETH',
+  });
+}
+
+export function decEthToConvertedCurrency(
+  ethTotal,
+  convertedCurrency,
+  conversionRate,
+) {
+  return conversionUtil(ethTotal, {
+    fromNumericBase: 'dec',
+    toNumericBase: 'dec',
+    fromCurrency: 'ETH',
+    toCurrency: convertedCurrency,
+    numberOfDecimals: 2,
+    conversionRate,
+  });
+}
+
+export function getWeiHexFromDecimalValue({
+  value,
+  fromCurrency,
+  conversionRate,
+  fromDenomination,
+  invertConversionRate,
+}) {
+  return conversionUtil(value, {
+    fromNumericBase: 'dec',
+    toNumericBase: 'hex',
+    toCurrency: ETH,
+    fromCurrency,
+    conversionRate,
+    invertConversionRate,
+    fromDenomination,
+    toDenomination: WEI,
+  });
+}
+
+/**
+ * Converts a BN object to a hex string with a '0x' prefix
+ *
+ * @param {BN} inputBn - The BN to convert to a hex string
+ * @returns {string} A '0x' prefixed hex string
+ */
+export function bnToHex(inputBn) {
+  return addHexPrefix(inputBn.toString(16));
+}
+
+export function getValueFromWeiHex({
+  value,
+  fromCurrency = ETH,
+  toCurrency,
+  conversionRate,
+  numberOfDecimals,
+  toDenomination,
+}) {
+  return conversionUtil(value, {
+    fromNumericBase: 'hex',
+    toNumericBase: 'dec',
+    fromCurrency,
+    toCurrency,
+    numberOfDecimals,
+    fromDenomination: WEI,
+    toDenomination,
+    conversionRate,
+  });
+}
+
+export function sumHexes(...args) {
+  const total = args.reduce((acc, hexAmount) => {
+    return addCurrencies(acc, hexAmount, {
+      toNumericBase: 'hex',
+      aBase: 16,
+      bBase: 16,
+    });
+  });
+
+  return addHexPrefix(total);
+}
+
+export function hexWEIToDecGWEI(decGWEI) {
+  return conversionUtil(decGWEI, {
+    fromNumericBase: 'hex',
+    toNumericBase: 'dec',
+    fromDenomination: 'WEI',
+    toDenomination: 'GWEI',
+  });
+}
+
+export function decimalToHex(decimal) {
+  return conversionUtil(decimal, {
+    fromNumericBase: 'dec',
+    toNumericBase: 'hex',
+  });
+}
+
+export function hexToDecimal(hexValue) {
+  return conversionUtil(hexValue, {
+    fromNumericBase: 'hex',
+    toNumericBase: 'dec',
+  });
+}
+
 export {
   conversionUtil,
   addCurrencies,

shared/modules/conversion.utils.test.js

@@ -1,8 +1,12 @@
 import BigNumber from 'bignumber.js';
+import { ETH } from '../../ui/helpers/constants/common';
 import {
   addCurrencies,
   conversionUtil,
+  decWEIToDecETH,
   divideCurrencies,
+  getValueFromWeiHex,
+  getWeiHexFromDecimalValue,
 } from './conversion.utils';
 
 describe('conversion utils', () => {
@@ -202,4 +206,51 @@ describe('conversion utils', () => {
       }).toThrow('Must specify valid dividendBase and divisorBase');
     });
   });
+
+  describe('decWEIToDecETH', () => {
+    it('converts 10000000000000 WEI to ETH', () => {
+      const ethDec = decWEIToDecETH('10000000000000');
+      expect('0.00001').toStrictEqual(ethDec);
+    });
+
+    it('converts 9358749494527040 WEI to ETH', () => {
+      const ethDec = decWEIToDecETH('9358749494527040');
+      expect('0.009358749').toStrictEqual(ethDec);
+    });
+  });
+
+  describe('getWeiHexFromDecimalValue', () => {
+    it('should correctly convert 0 in ETH', () => {
+      const weiValue = getWeiHexFromDecimalValue({
+        value: '0',
+        fromCurrency: ETH,
+        fromDenomination: ETH,
+      });
+      expect(weiValue).toStrictEqual('0');
+    });
+  });
+
+  describe('getValueFromWeiHex', () => {
+    it('should get the transaction amount in ETH', () => {
+      const ethTransactionAmount = getValueFromWeiHex({
+        value: '0xde0b6b3a7640000',
+        toCurrency: 'ETH',
+        conversionRate: 468.58,
+        numberOfDecimals: 6,
+      });
+
+      expect(ethTransactionAmount).toStrictEqual('1');
+    });
+
+    it('should get the transaction amount in fiat', () => {
+      const fiatTransactionAmount = getValueFromWeiHex({
+        value: '0xde0b6b3a7640000',
+        toCurrency: 'usd',
+        conversionRate: 468.58,
+        numberOfDecimals: 2,
+      });
+
+      expect(fiatTransactionAmount).toStrictEqual('468.58');
+    });
+  });
 });

ui/components/app/advanced-gas-fee-popover/advanced-gas-fee-inputs/base-fee-input/base-fee-input.js

@@ -8,7 +8,6 @@ import {
 } from '../../../../../../shared/constants/gas';
 import { PRIMARY } from '../../../../../helpers/constants/common';
 import { bnGreaterThan, bnLessThan } from '../../../../../helpers/utils/util';
-import { decGWEIToHexWEI } from '../../../../../helpers/utils/conversions.util';
 import { getAdvancedGasFeeValues } from '../../../../../selectors';
 import { useGasFeeContext } from '../../../../../contexts/gasFee';
 import { useI18nContext } from '../../../../../hooks/useI18nContext';
@@ -19,6 +18,7 @@ import FormField from '../../../../ui/form-field';
 
 import { useAdvancedGasFeePopoverContext } from '../../context';
 import AdvancedGasFeeInputSubtext from '../../advanced-gas-fee-input-subtext';
+import { decGWEIToHexWEI } from '../../../../../../shared/modules/conversion.utils';
 
 const validateBaseFee = (value, gasFeeEstimates, maxPriorityFeePerGas) => {
   if (bnGreaterThan(maxPriorityFeePerGas, value)) {

ui/components/app/advanced-gas-fee-popover/advanced-gas-fee-inputs/priority-fee-input/priority-fee-input.js

@@ -7,7 +7,6 @@ import {
   PRIORITY_LEVELS,
 } from '../../../../../../shared/constants/gas';
 import { PRIMARY } from '../../../../../helpers/constants/common';
-import { decGWEIToHexWEI } from '../../../../../helpers/utils/conversions.util';
 import { getAdvancedGasFeeValues } from '../../../../../selectors';
 import { useCurrencyDisplay } from '../../../../../hooks/useCurrencyDisplay';
 import { useGasFeeContext } from '../../../../../contexts/gasFee';
@@ -19,6 +18,7 @@ import { bnGreaterThan, bnLessThan } from '../../../../../helpers/utils/util';
 
 import { useAdvancedGasFeePopoverContext } from '../../context';
 import AdvancedGasFeeInputSubtext from '../../advanced-gas-fee-input-subtext';
+import { decGWEIToHexWEI } from '../../../../../../shared/modules/conversion.utils';
 
 const validatePriorityFee = (value, gasFeeEstimates) => {
   if (value < 0) {

ui/components/app/advanced-gas-inputs/advanced-gas-inputs.container.js

@@ -1,11 +1,11 @@
 import { connect } from 'react-redux';
-import { decGWEIToHexWEI } from '../../../helpers/utils/conversions.util';
 import { getNetworkSupportsSettingGasFees } from '../../../selectors/selectors';
 import { MIN_GAS_LIMIT_DEC } from '../../../pages/send/send.constants';
 import {
+  decGWEIToHexWEI,
   decimalToHex,
   hexWEIToDecGWEI,
-} from '../../../../shared/lib/transactions-controller-utils';
+} from '../../../../shared/modules/conversion.utils';
 import AdvancedGasInputs from './advanced-gas-inputs.component';
 
 function convertGasPriceForInputs(gasPriceInHexWEI) {

ui/components/app/cancel-speedup-popover/cancel-speedup-popover.test.js

@@ -11,9 +11,11 @@ import mockEstimates from '../../../../test/data/mock-estimates.json';
 import mockState from '../../../../test/data/mock-state.json';
 import { GasFeeContextProvider } from '../../../contexts/gasFee';
 import configureStore from '../../../store/store';
-import { decGWEIToHexWEI } from '../../../helpers/utils/conversions.util';
 import InfoTooltip from '../../ui/info-tooltip';
-import { hexWEIToDecETH } from '../../../../shared/lib/transactions-controller-utils';
+import {
+  decGWEIToHexWEI,
+  hexWEIToDecETH,
+} from '../../../../shared/modules/conversion.utils';
 import CancelSpeedupPopover from './cancel-speedup-popover';
 
 const MAXFEEPERGAS_ABOVE_MOCK_MEDIUM_HEX = '0x174876e800';

ui/components/app/confirm-page-container/confirm-page-container-navigation/confirm-page-container-navigation.component.js

@@ -9,7 +9,7 @@ import { transactionMatchesNetwork } from '../../../../../shared/modules/transac
 import { I18nContext } from '../../../../contexts/i18n';
 import { CONFIRM_TRANSACTION_ROUTE } from '../../../../helpers/constants/routes';
 import { clearConfirmTransaction } from '../../../../ducks/confirm-transaction/confirm-transaction.duck';
-import { hexToDecimal } from '../../../../../shared/lib/metamask-controller-utils';
+import { hexToDecimal } from '../../../../../shared/modules/conversion.utils';
 
 const ConfirmPageContainerNavigation = () => {
   const t = useContext(I18nContext);

ui/components/app/currency-input/currency-input.js

@@ -3,10 +3,6 @@ import PropTypes from 'prop-types';
 import { useSelector } from 'react-redux';
 import UnitInput from '../../ui/unit-input';
 import CurrencyDisplay from '../../ui/currency-display';
-import {
-  getValueFromWeiHex,
-  getWeiHexFromDecimalValue,
-} from '../../../helpers/utils/conversions.util';
 import { ETH } from '../../../helpers/constants/common';
 import { I18nContext } from '../../../contexts/i18n';
 import {
@@ -14,6 +10,10 @@ import {
   getNativeCurrency,
 } from '../../../ducks/metamask/metamask';
 import { getCurrentCurrency, getShouldShowFiat } from '../../../selectors';
+import {
+  getValueFromWeiHex,
+  getWeiHexFromDecimalValue,
+} from '../../../../shared/modules/conversion.utils';
 
 /**
  * Component that allows user to enter currency values as a number, and props receive a converted

ui/components/app/edit-gas-fee-popover/edit-gas-item/useGasItemFeeDetails.js

@@ -6,7 +6,6 @@ import {
   PRIORITY_LEVELS,
 } from '../../../../../shared/constants/gas';
 import { getMaximumGasTotalInHexWei } from '../../../../../shared/modules/gas.utils';
-import { decGWEIToHexWEI } from '../../../../helpers/utils/conversions.util';
 import {
   addTenPercentAndRound,
   gasEstimateGreaterThanGasUsedPlusTenPercent,
@@ -14,9 +13,10 @@ import {
 import { getAdvancedGasFeeValues } from '../../../../selectors';
 import { useGasFeeContext } from '../../../../contexts/gasFee';
 import {
+  decGWEIToHexWEI,
   decimalToHex,
   hexWEIToDecGWEI,
-} from '../../../../../shared/lib/transactions-controller-utils';
+} from '../../../../../shared/modules/conversion.utils';
 import { useCustomTimeEstimate } from './useCustomTimeEstimate';
 
 export const useGasItemFeeDetails = (priorityLevel) => {

ui/components/app/edit-gas-popover/edit-gas-popover.component.js

@@ -10,8 +10,6 @@ import {
   GAS_RECOMMENDATIONS,
 } from '../../../../shared/constants/gas';
 
-import { decGWEIToHexWEI } from '../../../helpers/utils/conversions.util';
-
 import Popover from '../../ui/popover';
 import Button from '../../ui/button';
 import EditGasDisplay from '../edit-gas-display';
@@ -27,8 +25,11 @@ import {
 } from '../../../store/actions';
 import LoadingHeartBeat from '../../ui/loading-heartbeat';
 import { useIncrementedGasFees } from '../../../hooks/useIncrementedGasFees';
-import { hexToDecimal } from '../../../../shared/lib/metamask-controller-utils';
+import {
-import { decimalToHex } from '../../../../shared/lib/transactions-controller-utils';
+  decGWEIToHexWEI,
+  decimalToHex,
+  hexToDecimal,
+} from '../../../../shared/modules/conversion.utils';
 
 export default function EditGasPopover({
   popoverTitle = '',

ui/components/app/edit-gas-popover/edit-gas-popover.stories.js

@@ -1,6 +1,5 @@
 import React from 'react';
 import { Provider } from 'react-redux';
-import { decGWEIToHexWEI } from '../../../helpers/utils/conversions.util';
 import configureStore from '../../../store/store';
 import testData from '../../../../.storybook/test-data';
 import {
@@ -8,6 +7,7 @@ import {
   GAS_RECOMMENDATIONS,
 } from '../../../../shared/constants/gas';
 
+import { decGWEIToHexWEI } from '../../../../shared/modules/conversion.utils';
 import EditGasPopover from '.';
 
 const store = configureStore(testData);

ui/components/app/multilayer-fee-message/multi-layer-fee-message.js

@@ -6,8 +6,8 @@ import UserPreferencedCurrencyDisplay from '../user-preferenced-currency-display
 import fetchEstimatedL1Fee from '../../../helpers/utils/optimism/fetchEstimatedL1Fee';
 import { SECONDARY } from '../../../helpers/constants/common';
 import { I18nContext } from '../../../contexts/i18n';
-import { sumHexes } from '../../../helpers/utils/transactions.util';
 import {
+  sumHexes,
   toBigNumber,
   toNormalizedDenomination,
 } from '../../../../shared/modules/conversion.utils';

ui/components/app/transaction-activity-log/transaction-activity-log.component.js

@@ -3,9 +3,9 @@ import PropTypes from 'prop-types';
 import classnames from 'classnames';
 
 import { getBlockExplorerLink } from '@metamask/etherscan-link';
-import { getValueFromWeiHex } from '../../../helpers/utils/conversions.util';
 import { formatDate, getURLHostName } from '../../../helpers/utils/util';
 import { EVENT } from '../../../../shared/constants/metametrics';
+import { getValueFromWeiHex } from '../../../../shared/modules/conversion.utils';
 import TransactionActivityLogIcon from './transaction-activity-log-icon';
 import { CONFIRMED_STATUS } from './transaction-activity-log.constants';
 

ui/components/app/transaction-activity-log/transaction-activity-log.util.js

@@ -1,6 +1,6 @@
 import { TransactionType } from '../../../../shared/constants/transaction';
+import { sumHexes } from '../../../../shared/modules/conversion.utils';
 import { getHexGasTotal } from '../../../helpers/utils/confirm-tx.util';
-import { sumHexes } from '../../../helpers/utils/transactions.util';
 
 import {
   // event constants

ui/components/app/transaction-breakdown/transaction-breakdown.container.js

@@ -5,10 +5,12 @@ import {
 } from '../../../selectors';
 import { getNativeCurrency } from '../../../ducks/metamask/metamask';
 import { getHexGasTotal } from '../../../helpers/utils/confirm-tx.util';
-import { subtractHexes } from '../../../helpers/utils/conversions.util';
-import { sumHexes } from '../../../helpers/utils/transactions.util';
 import { isEIP1559Transaction } from '../../../../shared/modules/transaction.utils';
 
+import {
+  subtractHexes,
+  sumHexes,
+} from '../../../../shared/modules/conversion.utils';
 import TransactionBreakdown from './transaction-breakdown.component';
 
 const mapStateToProps = (state, ownProps) => {

ui/components/app/transaction-decoding/transaction-decoding.component.js

@@ -10,7 +10,7 @@ import fetchWithCache from '../../../../shared/lib/fetch-with-cache';
 import { getSelectedAccount, getCurrentChainId } from '../../../selectors';
 import { I18nContext } from '../../../contexts/i18n';
 import { toChecksumHexAddress } from '../../../../shared/modules/hexstring-utils';
-import { hexToDecimal } from '../../../../shared/lib/metamask-controller-utils';
+import { hexToDecimal } from '../../../../shared/modules/conversion.utils';
 import { transformTxDecoding } from './transaction-decoding.util';
 import {
   FETCH_PROJECT_INFO_URI,

ui/components/ui/hex-to-decimal/hex-to-decimal.component.js

@@ -1,6 +1,6 @@
 import React, { PureComponent } from 'react';
 import PropTypes from 'prop-types';
-import { hexToDecimal } from '../../../../shared/lib/metamask-controller-utils';
+import { hexToDecimal } from '../../../../shared/modules/conversion.utils';
 
 export default class HexToDecimal extends PureComponent {
   static propTypes = {

ui/components/ui/token-input/token-input.component.js

@@ -3,9 +3,9 @@ import PropTypes from 'prop-types';
 import BigNumber from 'bignumber.js';
 import UnitInput from '../unit-input';
 import CurrencyDisplay from '../currency-display';
-import { getWeiHexFromDecimalValue } from '../../../helpers/utils/conversions.util';
 import {
   conversionUtil,
+  getWeiHexFromDecimalValue,
   multiplyCurrencies,
 } from '../../../../shared/modules/conversion.utils';
 

ui/ducks/confirm-transaction/confirm-transaction.duck.js

@@ -6,16 +6,17 @@ import {
 import { getNativeCurrency, getTokens } from '../metamask/metamask';
 
 import {
-  getValueFromWeiHex,
   getTransactionFee,
   getHexGasTotal,
   addFiat,
   addEth,
 } from '../../helpers/utils/confirm-tx.util';
 
-import { sumHexes } from '../../helpers/utils/transactions.util';
+import {
-
+  conversionUtil,
-import { conversionUtil } from '../../../shared/modules/conversion.utils';
+  getValueFromWeiHex,
+  sumHexes,
+} from '../../../shared/modules/conversion.utils';
 import { getAveragePriceEstimateInHexWEI } from '../../selectors/custom-gas';
 import { isEqualCaseInsensitive } from '../../../shared/modules/string-utils';
 import { parseStandardTokenTransactionData } from '../../../shared/modules/transaction.utils';

ui/ducks/metamask/metamask.js

@@ -13,11 +13,11 @@ import {
 } from '../../selectors';
 import { updateTransactionGasFees } from '../../store/actions';
 import { setCustomGasLimit, setCustomGasPrice } from '../gas/gas.duck';
-import { decGWEIToHexWEI } from '../../helpers/utils/conversions.util';
 
 import { HardwareKeyringTypes } from '../../../shared/constants/hardware-wallets';
 import { isEqualCaseInsensitive } from '../../../shared/modules/string-utils';
 import { stripHexPrefix } from '../../../shared/modules/hexstring-utils';
+import { decGWEIToHexWEI } from '../../../shared/modules/conversion.utils';
 
 export default function reduceMetamask(state = {}, action) {
   const metamaskState = {

ui/ducks/send/send.js

@@ -6,8 +6,10 @@ import { v4 as uuidv4 } from 'uuid';
 import {
   conversionGreaterThan,
   conversionUtil,
+  getValueFromWeiHex,
   multiplyCurrencies,
   subtractCurrencies,
+  sumHexes,
 } from '../../../shared/modules/conversion.utils';
 import { GAS_ESTIMATE_TYPES, GAS_LIMITS } from '../../../shared/constants/gas';
 import {
@@ -89,10 +91,7 @@ import {
   isValidHexAddress,
   toChecksumHexAddress,
 } from '../../../shared/modules/hexstring-utils';
-import {
+import { isSmartContractAddress } from '../../helpers/utils/transactions.util';
-  isSmartContractAddress,
-  sumHexes,
-} from '../../helpers/utils/transactions.util';
 import fetchEstimatedL1Fee from '../../helpers/utils/optimism/fetchEstimatedL1Fee';
 
 import { ETH } from '../../helpers/constants/common';
@@ -104,7 +103,6 @@ import {
 } from '../../../shared/constants/transaction';
 import { INVALID_ASSET_TYPE } from '../../helpers/constants/error-keys';
 import { isEqualCaseInsensitive } from '../../../shared/modules/string-utils';
-import { getValueFromWeiHex } from '../../helpers/utils/confirm-tx.util';
 import { parseStandardTokenTransactionData } from '../../../shared/modules/transaction.utils';
 import { getTokenValueParam } from '../../../shared/lib/metamask-controller-utils';
 import {

ui/ducks/swaps/swaps.js

@@ -52,11 +52,13 @@ import {
   stxErrorTypes,
 } from '../../pages/swaps/swaps.util';
 import {
-  getValueFromWeiHex,
-  decGWEIToHexWEI,
   addHexes,
-} from '../../helpers/utils/conversions.util';
+  conversionLessThan,
-import { conversionLessThan } from '../../../shared/modules/conversion.utils';
+  decGWEIToHexWEI,
+  decimalToHex,
+  getValueFromWeiHex,
+  hexWEIToDecGWEI,
+} from '../../../shared/modules/conversion.utils';
 import {
   getSelectedAccount,
   getTokenExchangeRates,
@@ -88,8 +90,6 @@ import { ORIGIN_METAMASK } from '../../../shared/constants/app';
 import {
   calcGasTotal,
   calcTokenAmount,
-  decimalToHex,
-  hexWEIToDecGWEI,
 } from '../../../shared/lib/transactions-controller-utils';
 
 export const GAS_PRICES_LOADING_STATES = {

ui/helpers/utils/confirm-tx.util.js

@@ -60,26 +60,6 @@ export function addFiat(...args) {
   });
 }
 
-export function getValueFromWeiHex({
-  value,
-  fromCurrency = 'ETH',
-  toCurrency,
-  conversionRate,
-  numberOfDecimals,
-  toDenomination,
-}) {
-  return conversionUtil(value, {
-    fromNumericBase: 'hex',
-    toNumericBase: 'dec',
-    fromCurrency,
-    toCurrency,
-    numberOfDecimals,
-    fromDenomination: 'WEI',
-    toDenomination,
-    conversionRate,
-  });
-}
-
 export function getTransactionFee({
   value,
   fromCurrency = 'ETH',

ui/helpers/utils/confirm-tx.util.test.js

@@ -89,30 +89,6 @@ describe('Confirm Transaction utils', () => {
     });
   });
 
-  describe('getValueFromWeiHex', () => {
-    it('should get the transaction amount in ETH', () => {
-      const ethTransactionAmount = utils.getValueFromWeiHex({
-        value: '0xde0b6b3a7640000',
-        toCurrency: 'ETH',
-        conversionRate: 468.58,
-        numberOfDecimals: 6,
-      });
-
-      expect(ethTransactionAmount).toStrictEqual('1');
-    });
-
-    it('should get the transaction amount in fiat', () => {
-      const fiatTransactionAmount = utils.getValueFromWeiHex({
-        value: '0xde0b6b3a7640000',
-        toCurrency: 'usd',
-        conversionRate: 468.58,
-        numberOfDecimals: 2,
-      });
-
-      expect(fiatTransactionAmount).toStrictEqual('468.58');
-    });
-  });
-
   describe('getTransactionFee', () => {
     it('should get the transaction fee in ETH', () => {
       const ethTransactionFee = utils.getTransactionFee({

ui/helpers/utils/conversions.util.js

@@ -1,202 +0,0 @@
-import { ETH, GWEI, WEI } from '../constants/common';
-import { addHexPrefix } from '../../../app/scripts/lib/util';
-import {
-  conversionUtil,
-  addCurrencies,
-  subtractCurrencies,
-} from '../../../shared/modules/conversion.utils';
-import { formatCurrency } from './confirm-tx.util';
-
-export function bnToHex(inputBn) {
-  return addHexPrefix(inputBn.toString(16));
-}
-
-export function getEthConversionFromWeiHex({
-  value,
-  fromCurrency = ETH,
-  conversionRate,
-  numberOfDecimals = 6,
-}) {
-  const denominations = [fromCurrency, GWEI, 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 = ETH,
-  toCurrency,
-  conversionRate,
-  numberOfDecimals,
-  toDenomination,
-}) {
-  return conversionUtil(value, {
-    fromNumericBase: 'hex',
-    toNumericBase: 'dec',
-    fromCurrency,
-    toCurrency,
-    numberOfDecimals,
-    fromDenomination: WEI,
-    toDenomination,
-    conversionRate,
-  });
-}
-
-export function getWeiHexFromDecimalValue({
-  value,
-  fromCurrency,
-  conversionRate,
-  fromDenomination,
-  invertConversionRate,
-}) {
-  return conversionUtil(value, {
-    fromNumericBase: 'dec',
-    toNumericBase: 'hex',
-    toCurrency: ETH,
-    fromCurrency,
-    conversionRate,
-    invertConversionRate,
-    fromDenomination,
-    toDenomination: WEI,
-  });
-}
-
-export function addHexWEIsToDec(aHexWEI, bHexWEI) {
-  return addCurrencies(aHexWEI, bHexWEI, {
-    aBase: 16,
-    bBase: 16,
-    fromDenomination: 'WEI',
-    numberOfDecimals: 6,
-  });
-}
-
-export function subtractHexWEIsToDec(aHexWEI, bHexWEI) {
-  return subtractCurrencies(aHexWEI, bHexWEI, {
-    aBase: 16,
-    bBase: 16,
-    fromDenomination: 'WEI',
-    numberOfDecimals: 6,
-  });
-}
-
-export function decEthToConvertedCurrency(
-  ethTotal,
-  convertedCurrency,
-  conversionRate,
-) {
-  return conversionUtil(ethTotal, {
-    fromNumericBase: 'dec',
-    toNumericBase: 'dec',
-    fromCurrency: 'ETH',
-    toCurrency: convertedCurrency,
-    numberOfDecimals: 2,
-    conversionRate,
-  });
-}
-
-export function decGWEIToHexWEI(decGWEI) {
-  return conversionUtil(decGWEI, {
-    fromNumericBase: 'dec',
-    toNumericBase: 'hex',
-    fromDenomination: 'GWEI',
-    toDenomination: 'WEI',
-  });
-}
-
-export function decETHToDecWEI(decEth) {
-  return conversionUtil(decEth, {
-    fromNumericBase: 'dec',
-    toNumericBase: 'dec',
-    fromDenomination: 'ETH',
-    toDenomination: 'WEI',
-  });
-}
-
-export function hexWEIToDecETH(hexWEI) {
-  return conversionUtil(hexWEI, {
-    fromNumericBase: 'hex',
-    toNumericBase: 'dec',
-    fromDenomination: 'WEI',
-    toDenomination: 'ETH',
-  });
-}
-
-export function decWEIToDecETH(hexWEI) {
-  return conversionUtil(hexWEI, {
-    fromNumericBase: 'dec',
-    toNumericBase: 'dec',
-    fromDenomination: 'WEI',
-    toDenomination: 'ETH',
-  });
-}
-
-export function addHexes(aHexWEI, bHexWEI) {
-  return addCurrencies(aHexWEI, bHexWEI, {
-    aBase: 16,
-    bBase: 16,
-    toNumericBase: 'hex',
-    numberOfDecimals: 6,
-  });
-}
-
-export function subtractHexes(aHexWEI, bHexWEI) {
-  return subtractCurrencies(aHexWEI, bHexWEI, {
-    aBase: 16,
-    bBase: 16,
-    toNumericBase: 'hex',
-    numberOfDecimals: 6,
-  });
-}
-
-export function sumHexWEIs(hexWEIs) {
-  return hexWEIs.filter(Boolean).reduce(addHexes);
-}
-
-export function sumHexWEIsToUnformattedFiat(
-  hexWEIs,
-  convertedCurrency,
-  conversionRate,
-) {
-  const hexWEIsSum = sumHexWEIs(hexWEIs);
-  const convertedTotal = decEthToConvertedCurrency(
-    getValueFromWeiHex({
-      value: hexWEIsSum,
-      toCurrency: 'ETH',
-      numberOfDecimals: 4,
-    }),
-    convertedCurrency,
-    conversionRate,
-  );
-  return convertedTotal;
-}
-
-export function sumHexWEIsToRenderableFiat(
-  hexWEIs,
-  convertedCurrency,
-  conversionRate,
-) {
-  const convertedTotal = sumHexWEIsToUnformattedFiat(
-    hexWEIs,
-    convertedCurrency,
-    conversionRate,
-  );
-  return formatCurrency(convertedTotal, convertedCurrency);
-}

ui/helpers/utils/conversions.util.test.js

@@ -1,54 +0,0 @@
-import { ETH } from '../constants/common';
-import * as utils from './conversions.util';
-
-describe('conversion utils', () => {
-  describe('getWeiHexFromDecimalValue', () => {
-    it('should correctly convert 0 in ETH', () => {
-      const weiValue = utils.getWeiHexFromDecimalValue({
-        value: '0',
-        fromCurrency: ETH,
-        fromDenomination: ETH,
-      });
-      expect(weiValue).toStrictEqual('0');
-    });
-  });
-
-  describe('decETHToDecWEI', () => {
-    it('should correctly convert 1 ETH to WEI', () => {
-      const weiValue = utils.decETHToDecWEI('1');
-      expect(weiValue).toStrictEqual('1000000000000000000');
-    });
-
-    it('should correctly convert 0.000000000000000001 ETH to WEI', () => {
-      const weiValue = utils.decETHToDecWEI('0.000000000000000001');
-      expect(weiValue).toStrictEqual('1');
-    });
-
-    it('should correctly convert 1000000.000000000000000001 ETH to WEI', () => {
-      const weiValue = utils.decETHToDecWEI('1000000.000000000000000001');
-      expect(weiValue).toStrictEqual('1000000000000000000000001');
-    });
-
-    it('should correctly convert 9876.543210 ETH to WEI', () => {
-      const weiValue = utils.decETHToDecWEI('9876.543210');
-      expect(weiValue).toStrictEqual('9876543210000000000000');
-    });
-
-    it('should correctly convert 1.0000000000000000 ETH to WEI', () => {
-      const weiValue = utils.decETHToDecWEI('1.0000000000000000');
-      expect(weiValue).toStrictEqual('1000000000000000000');
-    });
-  });
-
-  describe('decWEIToDecETH', () => {
-    it('converts 10000000000000 WEI to ETH', () => {
-      const ethDec = utils.decWEIToDecETH('10000000000000');
-      expect('0.00001').toStrictEqual(ethDec);
-    });
-
-    it('converts 9358749494527040 WEI to ETH', () => {
-      const ethDec = utils.decWEIToDecETH('9358749494527040');
-      expect('0.009358749').toStrictEqual(ethDec);
-    });
-  });
-});

ui/helpers/utils/gas.js

@@ -5,8 +5,10 @@ import {
   GAS_RECOMMENDATIONS,
   EDIT_GAS_MODES,
 } from '../../../shared/constants/gas';
-import { multiplyCurrencies } from '../../../shared/modules/conversion.utils';
+import {
-import { hexWEIToDecGWEI } from '../../../shared/lib/transactions-controller-utils';
+  hexWEIToDecGWEI,
+  multiplyCurrencies,
+} from '../../../shared/modules/conversion.utils';
 import {
   bnGreaterThan,
   isNullish,

ui/helpers/utils/transactions.util.js

@@ -8,7 +8,6 @@ import {
   TransactionStatus,
   TransactionEnvelopeType,
 } from '../../../shared/constants/transaction';
-import { addCurrencies } from '../../../shared/modules/conversion.utils';
 import { readAddressAsContract } from '../../../shared/modules/contract-utils';
 import fetchWithCache from '../../../shared/lib/fetch-with-cache';
 
@@ -135,18 +134,6 @@ export async function isSmartContractAddress(address) {
   return isContractAddress;
 }
 
-export function sumHexes(...args) {
-  const total = args.reduce((acc, hexAmount) => {
-    return addCurrencies(acc, hexAmount, {
-      toNumericBase: 'hex',
-      aBase: 16,
-      bBase: 16,
-    });
-  });
-
-  return addHexPrefix(total);
-}
-
 export function isLegacyTransaction(txParams) {
   return txParams?.type === TransactionEnvelopeType.legacy;
 }

ui/hooks/gasFeeInput/useGasEstimates.js

@@ -11,12 +11,14 @@ import {
 
 import { PRIMARY } from '../../helpers/constants/common';
 import { checkNetworkAndAccountSupports1559 } from '../../selectors';
-import { decGWEIToHexWEI } from '../../helpers/utils/conversions.util';
 import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
 
 import { useCurrencyDisplay } from '../useCurrencyDisplay';
 import { useUserPreferencedCurrency } from '../useUserPreferencedCurrency';
-import { decimalToHex } from '../../../shared/lib/transactions-controller-utils';
+import {
+  decGWEIToHexWEI,
+  decimalToHex,
+} from '../../../shared/modules/conversion.utils';
 
 /**
  * @typedef {object} GasEstimatesReturnType

ui/hooks/gasFeeInput/useGasEstimates.test.js

@@ -3,8 +3,10 @@ import {
   getMaximumGasTotalInHexWei,
   getMinimumGasTotalInHexWei,
 } from '../../../shared/modules/gas.utils';
-import { decGWEIToHexWEI } from '../../helpers/utils/conversions.util';
+import {
-import { decimalToHex } from '../../../shared/lib/transactions-controller-utils';
+  decGWEIToHexWEI,
+  decimalToHex,
+} from '../../../shared/modules/conversion.utils';
 import {
   FEE_MARKET_ESTIMATE_RETURN_VALUE,
   LEGACY_GAS_ESTIMATE_RETURN_VALUE,

ui/hooks/gasFeeInput/useGasFeeErrors.js

@@ -4,12 +4,12 @@ import { GAS_ESTIMATE_TYPES, GAS_LIMITS } from '../../../shared/constants/gas';
 import {
   conversionLessThan,
   conversionGreaterThan,
+  addHexes,
 } from '../../../shared/modules/conversion.utils';
 import {
   checkNetworkAndAccountSupports1559,
   getSelectedAccount,
 } from '../../selectors';
-import { addHexes } from '../../helpers/utils/conversions.util';
 import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
 import { bnGreaterThan, bnLessThan } from '../../helpers/utils/util';
 import { GAS_FORM_ERRORS } from '../../helpers/constants/gas';

ui/hooks/gasFeeInput/useGasFeeInputs.js

@@ -16,7 +16,7 @@ import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
 import { useGasFeeEstimates } from '../useGasFeeEstimates';
 
 import { editGasModeIsSpeedUpOrCancel } from '../../helpers/utils/gas';
-import { hexToDecimal } from '../../../shared/lib/metamask-controller-utils';
+import { hexToDecimal } from '../../../shared/modules/conversion.utils';
 import { useGasFeeErrors } from './useGasFeeErrors';
 import { useGasPriceInput } from './useGasPriceInput';
 import { useMaxFeePerGasInput } from './useMaxFeePerGasInput';

ui/hooks/gasFeeInput/useGasPriceInput.js

@@ -7,7 +7,7 @@ import {
 } from '../../../shared/constants/gas';
 import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
 
-import { hexWEIToDecGWEI } from '../../../shared/lib/transactions-controller-utils';
+import { hexWEIToDecGWEI } from '../../../shared/modules/conversion.utils';
 import { feeParamsAreCustom } from './utils';
 
 function getGasPriceEstimate(gasFeeEstimates, gasEstimateType, estimateToUse) {

ui/hooks/gasFeeInput/useMaxFeePerGasInput.js

@@ -4,7 +4,7 @@ import { useSelector } from 'react-redux';
 import { checkNetworkAndAccountSupports1559 } from '../../selectors';
 import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
 
-import { hexWEIToDecGWEI } from '../../../shared/lib/transactions-controller-utils';
+import { hexWEIToDecGWEI } from '../../../shared/modules/conversion.utils';
 import { feeParamsAreCustom, getGasFeeEstimate } from './utils';
 
 const getMaxFeePerGasFromTransaction = (transaction, gasFeeEstimates) => {

ui/hooks/gasFeeInput/useMaxPriorityFeePerGasInput.js

@@ -4,7 +4,7 @@ import { useEffect, useState } from 'react';
 import { checkNetworkAndAccountSupports1559 } from '../../selectors';
 import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
 
-import { hexWEIToDecGWEI } from '../../../shared/lib/transactions-controller-utils';
+import { hexWEIToDecGWEI } from '../../../shared/modules/conversion.utils';
 import { feeParamsAreCustom, getGasFeeEstimate } from './utils';
 
 const getMaxPriorityFeePerGasFromTransaction = (

ui/hooks/gasFeeInput/useTransactionFunctions.js

@@ -1,9 +1,11 @@
 import { useCallback } from 'react';
 import { useDispatch } from 'react-redux';
-import { decimalToHex } from '../../../shared/lib/transactions-controller-utils';
 
 import { EDIT_GAS_MODES, PRIORITY_LEVELS } from '../../../shared/constants/gas';
-import { decGWEIToHexWEI } from '../../helpers/utils/conversions.util';
+import {
+  decGWEIToHexWEI,
+  decimalToHex,
+} from '../../../shared/modules/conversion.utils';
 import {
   addTenPercentAndRound,
   editGasModeIsSpeedUpOrCancel,

ui/hooks/useCurrencyDisplay.js

@@ -1,16 +1,16 @@
 import { useMemo } from 'react';
 import { useSelector } from 'react-redux';
-import {
+import { formatCurrency } from '../helpers/utils/confirm-tx.util';
-  formatCurrency,
-  getValueFromWeiHex,
-} from '../helpers/utils/confirm-tx.util';
 import { getCurrentCurrency } from '../selectors';
 import {
   getConversionRate,
   getNativeCurrency,
 } from '../ducks/metamask/metamask';
 
-import { conversionUtil } from '../../shared/modules/conversion.utils';
+import {
+  conversionUtil,
+  getValueFromWeiHex,
+} from '../../shared/modules/conversion.utils';
 import { TEST_NETWORK_TICKER_MAP } from '../../shared/constants/network';
 
 /**

ui/hooks/useEthFiatAmount.js

@@ -1,9 +1,9 @@
 import { useMemo } from 'react';
 import { useSelector } from 'react-redux';
 import { getCurrentCurrency, getShouldShowFiat } from '../selectors';
-import { decEthToConvertedCurrency } from '../helpers/utils/conversions.util';
 import { formatCurrency } from '../helpers/utils/confirm-tx.util';
 import { getConversionRate } from '../ducks/metamask/metamask';
+import { decEthToConvertedCurrency } from '../../shared/modules/conversion.utils';
 
 /**
  * Get an Eth amount converted to fiat and formatted for display

ui/hooks/useIncrementedGasFees.js

@@ -1,7 +1,7 @@
 import BigNumber from 'bignumber.js';
 import { useMemo } from 'react';
+import { decGWEIToHexWEI } from '../../shared/modules/conversion.utils';
 import { isEIP1559Transaction } from '../../shared/modules/transaction.utils';
-import { decGWEIToHexWEI } from '../helpers/utils/conversions.util';
 import { addTenPercent } from '../helpers/utils/gas';
 import { useGasFeeEstimates } from './useGasFeeEstimates';
 

ui/pages/confirm-approve/confirm-approve.util.js

@@ -1,8 +1,8 @@
 import { calcTokenValue } from '../../../shared/lib/swaps-utils';
-import { decimalToHex } from '../../../shared/lib/transactions-controller-utils';
 import { TransactionType } from '../../../shared/constants/transaction';
 import { parseStandardTokenTransactionData } from '../../../shared/modules/transaction.utils';
 import { getTokenAddressParam } from '../../helpers/utils/token-util';
+import { decimalToHex } from '../../../shared/modules/conversion.utils';
 
 export function getCustomTxParamsData(
   data,

ui/pages/confirm-token-transaction-base/confirm-token-transaction-base.js

@@ -12,7 +12,6 @@ import {
   roundExponential,
 } from '../../helpers/utils/confirm-tx.util';
 import { ETH, PRIMARY } from '../../helpers/constants/common';
-import { getWeiHexFromDecimalValue } from '../../helpers/utils/conversions.util';
 import {
   contractExchangeRateSelector,
   getCurrentCurrency,
@@ -22,7 +21,10 @@ import {
   getNativeCurrency,
 } from '../../ducks/metamask/metamask';
 import { TokenStandard } from '../../../shared/constants/transaction';
-import { hexWEIToDecETH } from '../../../shared/lib/transactions-controller-utils';
+import {
+  getWeiHexFromDecimalValue,
+  hexWEIToDecETH,
+} from '../../../shared/modules/conversion.utils';
 
 export default function ConfirmTokenTransactionBase({
   image = '',

ui/pages/confirm-transaction-base/confirm-transaction-base.component.js

@@ -6,7 +6,6 @@ import { stripHexPrefix } from 'ethereumjs-util';
 import ConfirmPageContainer from '../../components/app/confirm-page-container';
 import TransactionDecoding from '../../components/app/transaction-decoding';
 import { isBalanceSufficient } from '../send/send.utils';
-import { addHexes } from '../../helpers/utils/conversions.util';
 import { DEFAULT_ROUTE } from '../../helpers/constants/routes';
 import {
   INSUFFICIENT_FUNDS_ERROR_KEY,
@@ -57,8 +56,6 @@ import {
 
 import { MIN_GAS_LIMIT_DEC } from '../send/send.constants';
 
-import { hexToDecimal } from '../../../shared/lib/metamask-controller-utils';
-import { hexWEIToDecGWEI } from '../../../shared/lib/transactions-controller-utils';
 ///: BEGIN:ONLY_INCLUDE_IN(flask)
 import { SnapInsight } from '../../components/app/confirm-page-container/flask/snap-insight';
 import { DropdownTab, Tab } from '../../components/ui/tabs';
@@ -71,6 +68,11 @@ import {
   ///: END:ONLY_INCLUDE_IN
 } from '../../../shared/constants/network';
 import TransactionAlerts from '../../components/app/transaction-alerts';
+import {
+  addHexes,
+  hexToDecimal,
+  hexWEIToDecGWEI,
+} from '../../../shared/modules/conversion.utils';
 
 const renderHeartBeatIfNotInTest = () =>
   process.env.IN_TEST ? null : <LoadingHeartBeat />;

ui/pages/send/gas-display/gas-display.js

@@ -5,7 +5,6 @@ import classNames from 'classnames';
 import { I18nContext } from '../../../contexts/i18n';
 import { useGasFeeContext } from '../../../contexts/gasFee';
 import { PRIMARY, SECONDARY } from '../../../helpers/constants/common';
-import { hexWEIToDecGWEI } from '../../../../shared/lib/transactions-controller-utils';
 import UserPreferencedCurrencyDisplay from '../../../components/app/user-preferenced-currency-display';
 import GasTiming from '../../../components/app/gas-timing';
 import InfoTooltip from '../../../components/ui/info-tooltip';
@@ -38,13 +37,14 @@ import {
   getUseCurrencyRateCheck,
 } from '../../../selectors';
 
-import {
-  hexWEIToDecETH,
-  addHexes,
-} from '../../../helpers/utils/conversions.util';
 import { INSUFFICIENT_TOKENS_ERROR } from '../send.constants';
 import { getCurrentDraftTransaction } from '../../../ducks/send';
 import { showModal } from '../../../store/actions';
+import {
+  addHexes,
+  hexWEIToDecETH,
+  hexWEIToDecGWEI,
+} from '../../../../shared/modules/conversion.utils';
 
 export default function GasDisplay({ gasError }) {
   const t = useContext(I18nContext);

ui/pages/send/send-content/send-gas-row/send-gas-row.container.js

@@ -14,7 +14,7 @@ import {
   setCustomGasPrice,
   setCustomGasLimit,
 } from '../../../../ducks/gas/gas.duck';
-import { hexToDecimal } from '../../../../../shared/lib/metamask-controller-utils';
+import { hexToDecimal } from '../../../../../shared/modules/conversion.utils';
 import SendGasRow from './send-gas-row.component';
 
 export default connect(mapStateToProps, mapDispatchToProps)(SendGasRow);

ui/pages/settings/networks-tab/networks-form/networks-form.js

@@ -36,8 +36,8 @@ import {
   infuraProjectId,
   FEATURED_RPCS,
 } from '../../../../../shared/constants/network';
-import { decimalToHex } from '../../../../../shared/lib/transactions-controller-utils';
 import { ORIGIN_METAMASK } from '../../../../../shared/constants/app';
+import { decimalToHex } from '../../../../../shared/modules/conversion.utils';
 
 /**
  * Attempts to convert the given chainId to a decimal string, for display

ui/pages/swaps/build-quote/build-quote.js

@@ -72,7 +72,6 @@ import {
   getUseCurrencyRateCheck,
 } from '../../../selectors';
 
-import { getValueFromWeiHex } from '../../../helpers/utils/conversions.util';
 import { getURLHostName } from '../../../helpers/utils/util';
 import { usePrevious } from '../../../hooks/usePrevious';
 import { useTokenTracker } from '../../../hooks/useTokenTracker';
@@ -106,9 +105,12 @@ import {
 } from '../swaps.util';
 import SwapsFooter from '../swaps-footer';
 import { isEqualCaseInsensitive } from '../../../../shared/modules/string-utils';
-import { hexToDecimal } from '../../../../shared/lib/metamask-controller-utils';
 import { calcTokenAmount } from '../../../../shared/lib/transactions-controller-utils';
 import { shouldEnableDirectWrapping } from '../../../../shared/lib/swaps-utils';
+import {
+  getValueFromWeiHex,
+  hexToDecimal,
+} from '../../../../shared/modules/conversion.utils';
 
 const fuseSearchKeys = [
   { name: 'name', weight: 0.499 },

ui/pages/swaps/swaps.util.js

@@ -19,7 +19,6 @@ import {
   isSwapsDefaultTokenSymbol,
 } from '../../../shared/modules/swaps.utils';
 import { CHAIN_IDS, CURRENCY_SYMBOLS } from '../../../shared/constants/network';
-import { getValueFromWeiHex } from '../../helpers/utils/conversions.util';
 import { formatCurrency } from '../../helpers/utils/confirm-tx.util';
 import fetchWithCache from '../../../shared/lib/fetch-with-cache';
 
@@ -27,7 +26,6 @@ import { isValidHexAddress } from '../../../shared/modules/hexstring-utils';
 import {
   calcGasTotal,
   calcTokenAmount,
-  decimalToHex,
   toPrecisionWithoutTrailingZeros,
 } from '../../../shared/lib/transactions-controller-utils';
 import {
@@ -35,7 +33,11 @@ import {
   truthyString,
   validateData,
 } from '../../../shared/lib/swaps-utils';
-import { sumHexes } from '../../helpers/utils/transactions.util';
+import {
+  decimalToHex,
+  getValueFromWeiHex,
+  sumHexes,
+} from '../../../shared/modules/conversion.utils';
 
 const CACHE_REFRESH_FIVE_MINUTES = 300000;
 const USD_CURRENCY_CODE = 'usd';

ui/pages/swaps/view-quote/view-quote.js

@@ -82,11 +82,6 @@ import {
   SWAPS_ERROR_ROUTE,
   AWAITING_SWAP_ROUTE,
 } from '../../../helpers/constants/routes';
-import {
-  decGWEIToHexWEI,
-  addHexes,
-  decWEIToDecETH,
-} from '../../../helpers/utils/conversions.util';
 import MainQuoteSummary from '../main-quote-summary';
 import { getCustomTxParamsData } from '../../confirm-approve/confirm-approve.util';
 import ActionableMessage from '../../../components/ui/actionable-message/actionable-message';
@@ -109,14 +104,19 @@ import { getTokenValueParam } from '../../../../shared/lib/metamask-controller-u
 import {
   calcGasTotal,
   calcTokenAmount,
-  decimalToHex,
-  hexWEIToDecGWEI,
   toPrecisionWithoutTrailingZeros,
 } from '../../../../shared/lib/transactions-controller-utils';
 import { addHexPrefix } from '../../../../app/scripts/lib/util';
 import { calcTokenValue } from '../../../../shared/lib/swaps-utils';
 import fetchEstimatedL1Fee from '../../../helpers/utils/optimism/fetchEstimatedL1Fee';
-import { sumHexes } from '../../../helpers/utils/transactions.util';
+import {
+  addHexes,
+  decGWEIToHexWEI,
+  decimalToHex,
+  decWEIToDecETH,
+  hexWEIToDecGWEI,
+  sumHexes,
+} from '../../../../shared/modules/conversion.utils';
 import ViewQuotePriceDifference from './view-quote-price-difference';
 
 let intervalId;

ui/selectors/confirm-transaction.js

@@ -2,12 +2,10 @@ import { createSelector } from 'reselect';
 import txHelper from '../helpers/utils/tx-helper';
 import {
   roundExponential,
-  getValueFromWeiHex,
   getTransactionFee,
   addFiat,
   addEth,
 } from '../helpers/utils/confirm-tx.util';
-import { sumHexes } from '../helpers/utils/transactions.util';
 import { transactionMatchesNetwork } from '../../shared/modules/transaction.utils';
 import {
   getGasEstimateType,
@@ -15,7 +13,6 @@ import {
   getNativeCurrency,
 } from '../ducks/metamask/metamask';
 import { TransactionEnvelopeType } from '../../shared/constants/transaction';
-import { decGWEIToHexWEI } from '../helpers/utils/conversions.util';
 import {
   GAS_ESTIMATE_TYPES,
   CUSTOM_GAS_ESTIMATE,
@@ -26,6 +23,11 @@ import {
 } from '../../shared/modules/gas.utils';
 import { isEqualCaseInsensitive } from '../../shared/modules/string-utils';
 import { calcTokenAmount } from '../../shared/lib/transactions-controller-utils';
+import {
+  decGWEIToHexWEI,
+  getValueFromWeiHex,
+  sumHexes,
+} from '../../shared/modules/conversion.utils';
 import { getAveragePriceEstimateInHexWEI } from './custom-gas';
 import { getCurrentChainId, deprecatedGetCurrentNetworkId } from './selectors';
 import { checkNetworkAndAccountSupports1559 } from '.';

ui/selectors/custom-gas.js

@@ -2,9 +2,9 @@ import { addHexPrefix } from '../../app/scripts/lib/util';
 import {
   conversionUtil,
   conversionGreaterThan,
+  decEthToConvertedCurrency,
 } from '../../shared/modules/conversion.utils';
 import { formatCurrency } from '../helpers/utils/confirm-tx.util';
-import { decEthToConvertedCurrency as ethTotalToConvertedCurrency } from '../helpers/utils/conversions.util';
 import { formatETHFee } from '../helpers/utils/formatters';
 
 import { getGasPrice } from '../ducks/send';
@@ -193,7 +193,7 @@ export function getRenderableConvertedCurrencyFee(
     toNumericBase: 'hex',
   });
   const fee = basicPriceEstimateToETHTotal(value, gasLimit);
-  const feeInCurrency = ethTotalToConvertedCurrency(
+  const feeInCurrency = decEthToConvertedCurrency(
     fee,
     convertedCurrency,
     conversionRate,

ui/selectors/selectors.js

@@ -49,7 +49,6 @@ import {
   getAccountByAddress,
   getURLHostName,
 } from '../helpers/utils/util';
-import { getValueFromWeiHex } from '../helpers/utils/conversions.util';
 
 import { TEMPLATED_CONFIRMATION_MESSAGE_TYPES } from '../pages/confirmation/templates';
 import { STATIC_MAINNET_TOKEN_LIST } from '../../shared/constants/tokens';
@@ -69,9 +68,12 @@ import {
   getLedgerTransportStatus,
 } from '../ducks/app/app';
 import { isEqualCaseInsensitive } from '../../shared/modules/string-utils';
-import { hexToDecimal } from '../../shared/lib/metamask-controller-utils';
 import { formatMoonpaySymbol } from '../helpers/utils/moonpay';
 import { TransactionStatus } from '../../shared/constants/transaction';
+import {
+  getValueFromWeiHex,
+  hexToDecimal,
+} from '../../shared/modules/conversion.utils';
 ///: BEGIN:ONLY_INCLUDE_IN(flask)
 import { SNAPS_VIEW_ROUTE } from '../helpers/constants/routes';
 import { getPermissionSubjects } from './permissions';

ui/selectors/transactions.js

@@ -10,7 +10,7 @@ import {
   SmartTransactionStatus,
 } from '../../shared/constants/transaction';
 import { transactionMatchesNetwork } from '../../shared/modules/transaction.utils';
-import { hexToDecimal } from '../../shared/lib/metamask-controller-utils';
+import { hexToDecimal } from '../../shared/modules/conversion.utils';
 import {
   getCurrentChainId,
   deprecatedGetCurrentNetworkId,

ui/store/actions.js

@@ -41,11 +41,11 @@ import { isEqualCaseInsensitive } from '../../shared/modules/string-utils';
 import { NOTIFICATIONS_EXPIRATION_DELAY } from '../helpers/constants/notifications';
 ///: END:ONLY_INCLUDE_IN
 import { setNewCustomNetworkAdded } from '../ducks/app/app';
-import { decimalToHex } from '../../shared/lib/transactions-controller-utils';
 import {
   fetchLocale,
   loadRelativeTimeFormatLocaleData,
 } from '../helpers/utils/i18n-helper';
+import { decimalToHex } from '../../shared/modules/conversion.utils';
 import * as actionConstants from './actionConstants';
 import {
   generateActionId,