mirror of
https://github.com/kremalicious/metamask-extension.git
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345 lines
10 KiB
JavaScript
345 lines
10 KiB
JavaScript
import { useCallback, useEffect, useState } from 'react';
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import { useSelector } from 'react-redux';
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import {
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CUSTOM_GAS_ESTIMATE,
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GAS_RECOMMENDATIONS,
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EDIT_GAS_MODES,
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PRIORITY_LEVELS,
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} from '../../../shared/constants/gas';
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import { GAS_FORM_ERRORS } from '../../helpers/constants/gas';
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import {
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checkNetworkAndAccountSupports1559,
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getAdvancedInlineGasShown,
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} from '../../selectors';
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import { hexToDecimal } from '../../helpers/utils/conversions.util';
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import { isLegacyTransaction } from '../../helpers/utils/transactions.util';
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import { useGasFeeEstimates } from '../useGasFeeEstimates';
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import { useGasFeeErrors } from './useGasFeeErrors';
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import { useGasPriceInput } from './useGasPriceInput';
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import { useMaxFeePerGasInput } from './useMaxFeePerGasInput';
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import { useMaxPriorityFeePerGasInput } from './useMaxPriorityFeePerGasInput';
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import { useGasEstimates } from './useGasEstimates';
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import { useTransactionFunctions } from './useTransactionFunctions';
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/**
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* In EIP_1559_V2 implementation as used by useGasfeeInputContext() the use of this hook is evolved.
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* It is no longer used to keep transient state of advance gas fee inputs.
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* Transient state of inputs is maintained locally in /ui/components/app/advance-gas-fee-popover component.
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*
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* This hook is used now as source of shared data about transaction, it shares details of gas fee in transaction,
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* estimate used, is EIP-1559 supported and other details. It also have methods to update transaction.
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*
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* Transaction is used as single source of truth and as transaction is updated the fields shared by hook are
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* also updated using useEffect hook.
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*
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* It will be useful to plan a task to create a new hook of this shared information from this hook.
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* Methods like setEstimateToUse, onManualChange are deprecated in context of EIP_1559_V2 implementation.
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*/
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/**
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* @typedef {Object} GasFeeInputReturnType
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* @property {DecGweiString} [maxFeePerGas] - the maxFeePerGas input value.
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* @property {string} [maxFeePerGasFiat] - the maxFeePerGas converted to the
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* user's preferred currency.
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* @property {(DecGweiString) => void} setMaxFeePerGas - state setter method to
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* update the maxFeePerGas.
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* @property {DecGweiString} [maxPriorityFeePerGas] - the maxPriorityFeePerGas
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* input value.
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* @property {string} [maxPriorityFeePerGasFiat] - the maxPriorityFeePerGas
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* converted to the user's preferred currency.
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* @property {(DecGweiString) => void} setMaxPriorityFeePerGas - state setter
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* method to update the maxPriorityFeePerGas.
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* @property {DecGweiString} [gasPrice] - the gasPrice input value.
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* @property {(DecGweiString) => void} setGasPrice - state setter method to
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* update the gasPrice.
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* @property {DecGweiString} gasLimit - the gasLimit input value.
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* @property {(DecGweiString) => void} setGasLimit - state setter method to
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* update the gasLimit.
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* @property {EstimateLevel} [estimateToUse] - the estimate level currently
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* selected. This will be null if the user has ejected from using the
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* estimates.
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* @property {([EstimateLevel]) => void} setEstimateToUse - Setter method for
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* choosing which EstimateLevel to use.
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* @property {string} [estimatedMinimumFiat] - The amount estimated to be paid
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* based on current network conditions. Expressed in user's preferred
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* currency.
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* @property {string} [estimatedMaximumFiat] - the maximum amount estimated to be
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* paid if current network transaction volume increases. Expressed in user's
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* preferred currency.
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* @property {string} [estimatedMaximumNative] - the maximum amount estimated to
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* be paid if the current network transaction volume increases. Expressed in
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* the network's native currency.
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*/
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/**
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* Uses gasFeeEstimates and state to keep track of user gas fee inputs.
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* Will update the gas fee state when estimates update if the user has not yet
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* modified the fields.
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* @param {EstimateLevel} defaultEstimateToUse - which estimate
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* level to default the 'estimateToUse' state variable to.
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* @returns {GasFeeInputReturnType & import(
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* './useGasFeeEstimates'
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* ).GasEstimates} - gas fee input state and the GasFeeEstimates object
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*/
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export function useGasFeeInputs(
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defaultEstimateToUse = GAS_RECOMMENDATIONS.MEDIUM,
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transaction,
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minimumGasLimit = '0x5208',
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editGasMode = EDIT_GAS_MODES.MODIFY_IN_PLACE,
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) {
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const EIP_1559_V2_ENABLED =
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// This is a string in unit tests but is a boolean in the browser
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process.env.EIP_1559_V2 === true || process.env.EIP_1559_V2 === 'true';
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const supportsEIP1559 =
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useSelector(checkNetworkAndAccountSupports1559) &&
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!isLegacyTransaction(transaction?.txParams);
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const supportsEIP1559V2 = supportsEIP1559 && EIP_1559_V2_ENABLED;
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// We need the gas estimates from the GasFeeController in the background.
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// Calling this hooks initiates polling for new gas estimates and returns the
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// current estimate.
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const {
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gasEstimateType,
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gasFeeEstimates,
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isGasEstimatesLoading,
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estimatedGasFeeTimeBounds,
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} = useGasFeeEstimates();
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const userPrefersAdvancedGas = useSelector(getAdvancedInlineGasShown);
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const [estimateToUse, setInternalEstimateToUse] = useState(() => {
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if (
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userPrefersAdvancedGas &&
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transaction?.txParams?.maxPriorityFeePerGas &&
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transaction?.txParams?.maxFeePerGas
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)
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return null;
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if (transaction) return transaction?.userFeeLevel || null;
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return defaultEstimateToUse;
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});
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const [estimateUsed, setEstimateUsed] = useState(() => {
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if (estimateToUse) {
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return estimateToUse;
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}
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return PRIORITY_LEVELS.CUSTOM;
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});
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const [gasLimit, setGasLimit] = useState(() =>
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Number(hexToDecimal(transaction?.txParams?.gas ?? '0x0')),
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);
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/**
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* In EIP-1559 V2 designs change to gas estimate is always updated to transaction
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* Thus callback setEstimateToUse can be deprecate in favour of this useEffect
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* so that transaction is source of truth whenever possible.
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*/
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useEffect(() => {
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if (supportsEIP1559V2) {
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if (transaction?.userFeeLevel) {
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setEstimateUsed(transaction?.userFeeLevel);
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setInternalEstimateToUse(transaction?.userFeeLevel);
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}
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setGasLimit(Number(hexToDecimal(transaction?.txParams?.gas ?? '0x0')));
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}
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}, [
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setEstimateUsed,
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setGasLimit,
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setInternalEstimateToUse,
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supportsEIP1559V2,
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transaction,
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]);
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const {
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gasPrice,
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setGasPrice,
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setGasPriceHasBeenManuallySet,
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} = useGasPriceInput({
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estimateToUse,
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gasEstimateType,
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gasFeeEstimates,
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transaction,
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});
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const {
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maxFeePerGas,
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maxFeePerGasFiat,
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setMaxFeePerGas,
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} = useMaxFeePerGasInput({
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estimateToUse,
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gasEstimateType,
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gasFeeEstimates,
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gasLimit,
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gasPrice,
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supportsEIP1559V2,
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transaction,
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});
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const {
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maxPriorityFeePerGas,
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maxPriorityFeePerGasFiat,
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setMaxPriorityFeePerGas,
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} = useMaxPriorityFeePerGasInput({
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estimateToUse,
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gasEstimateType,
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gasFeeEstimates,
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gasLimit,
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supportsEIP1559V2,
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transaction,
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});
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const {
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estimatedBaseFee,
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estimatedMaximumFiat,
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estimatedMinimumFiat,
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estimatedMaximumNative,
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estimatedMinimumNative,
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minimumCostInHexWei,
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} = useGasEstimates({
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editGasMode,
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gasEstimateType,
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gasFeeEstimates,
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gasLimit,
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gasPrice,
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maxFeePerGas,
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maxPriorityFeePerGas,
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minimumGasLimit,
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transaction,
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});
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const {
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balanceError,
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estimatesUnavailableWarning,
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gasErrors,
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gasWarnings,
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hasGasErrors,
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hasSimulationError,
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} = useGasFeeErrors({
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gasEstimateType,
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gasFeeEstimates,
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isGasEstimatesLoading,
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gasLimit,
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gasPrice,
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maxPriorityFeePerGas,
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maxFeePerGas,
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minimumCostInHexWei,
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minimumGasLimit,
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transaction,
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});
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const handleGasLimitOutOfBoundError = useCallback(() => {
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if (gasErrors.gasLimit === GAS_FORM_ERRORS.GAS_LIMIT_OUT_OF_BOUNDS) {
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const transactionGasLimitDec = hexToDecimal(transaction?.txParams?.gas);
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const minimumGasLimitDec = hexToDecimal(minimumGasLimit);
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setGasLimit(
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transactionGasLimitDec > minimumGasLimitDec
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? transactionGasLimitDec
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: minimumGasLimitDec,
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);
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}
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}, [minimumGasLimit, gasErrors.gasLimit, transaction]);
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const {
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updateTransaction,
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updateTransactionUsingGasFeeEstimates,
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} = useTransactionFunctions({
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defaultEstimateToUse,
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editGasMode,
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gasFeeEstimates,
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gasLimit,
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transaction,
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});
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// When a user selects an estimate level, it will wipe out what they have
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// previously put in the inputs. This returns the inputs to the estimated
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// values at the level specified.
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const setEstimateToUse = useCallback(
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(estimateLevel) => {
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setInternalEstimateToUse(estimateLevel);
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handleGasLimitOutOfBoundError();
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setMaxFeePerGas(null);
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setMaxPriorityFeePerGas(null);
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setGasPrice(null);
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setGasPriceHasBeenManuallySet(false);
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setEstimateUsed(estimateLevel);
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},
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[
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setInternalEstimateToUse,
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handleGasLimitOutOfBoundError,
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setMaxFeePerGas,
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setMaxPriorityFeePerGas,
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setGasPrice,
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setGasPriceHasBeenManuallySet,
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setEstimateUsed,
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],
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);
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const onManualChange = useCallback(() => {
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setInternalEstimateToUse(CUSTOM_GAS_ESTIMATE);
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handleGasLimitOutOfBoundError();
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// Restore existing values
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setGasPrice(gasPrice);
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setGasLimit(gasLimit);
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setMaxFeePerGas(maxFeePerGas);
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setMaxPriorityFeePerGas(maxPriorityFeePerGas);
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setGasPriceHasBeenManuallySet(true);
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setEstimateUsed('custom');
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}, [
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setInternalEstimateToUse,
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handleGasLimitOutOfBoundError,
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setGasPrice,
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gasPrice,
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setGasLimit,
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gasLimit,
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setMaxFeePerGas,
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maxFeePerGas,
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setMaxPriorityFeePerGas,
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maxPriorityFeePerGas,
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setGasPriceHasBeenManuallySet,
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]);
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return {
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transaction,
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maxFeePerGas,
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maxFeePerGasFiat,
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setMaxFeePerGas,
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maxPriorityFeePerGas,
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maxPriorityFeePerGasFiat,
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setMaxPriorityFeePerGas,
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gasPrice,
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setGasPrice,
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gasLimit,
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setGasLimit,
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editGasMode,
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estimateToUse,
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setEstimateToUse,
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estimatedMinimumFiat,
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estimatedMaximumFiat,
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estimatedMaximumNative,
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estimatedMinimumNative,
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isGasEstimatesLoading,
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estimateUsed,
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gasFeeEstimates,
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gasEstimateType,
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estimatedGasFeeTimeBounds,
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onManualChange,
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estimatedBaseFee,
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// error and warnings
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balanceError,
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estimatesUnavailableWarning,
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gasErrors,
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gasWarnings,
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hasGasErrors,
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hasSimulationError,
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minimumGasLimitDec: hexToDecimal(minimumGasLimit),
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supportsEIP1559,
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supportsEIP1559V2,
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updateTransaction,
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updateTransactionUsingGasFeeEstimates,
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};
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}
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