A Metamask fork with Infura removed and default networks editable
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ciphermask/ui/pages/swaps/view-quote/view-quote.js

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import React, { useState, useContext, useMemo, useEffect, useRef } from 'react';
import { useSelector, useDispatch } from 'react-redux';
import { useHistory } from 'react-router-dom';
import BigNumber from 'bignumber.js';
import { isEqual } from 'lodash';
import classnames from 'classnames';
import { I18nContext } from '../../../contexts/i18n';
import SelectQuotePopover from '../select-quote-popover';
import { useEthFiatAmount } from '../../../hooks/useEthFiatAmount';
import { useEqualityCheck } from '../../../hooks/useEqualityCheck';
import { useNewMetricEvent } from '../../../hooks/useMetricEvent';
import { usePrevious } from '../../../hooks/usePrevious';
import { MetaMetricsContext } from '../../../contexts/metametrics.new';
import FeeCard from '../fee-card';
import {
FALLBACK_GAS_MULTIPLIER,
getQuotes,
getSelectedQuote,
getApproveTxParams,
getFetchParams,
setBalanceError,
getQuotesLastFetched,
getBalanceError,
getCustomSwapsGas,
getDestinationTokenInfo,
getUsedSwapsGasPrice,
getTopQuote,
navigateBackToBuildQuote,
signAndSendTransactions,
getBackgroundSwapRouteState,
swapsQuoteSelected,
getSwapsQuoteRefreshTime,
} from '../../../ducks/swaps/swaps';
import {
conversionRateSelector,
getSelectedAccount,
getCurrentCurrency,
getTokenExchangeRates,
getSwapsDefaultToken,
getCurrentChainId,
isHardwareWallet,
getHardwareWalletType,
} from '../../../selectors';
import { getNativeCurrency, getTokens } from '../../../ducks/metamask/metamask';
import { toPrecisionWithoutTrailingZeros } from '../../../helpers/utils/util';
import {
safeRefetchQuotes,
setCustomApproveTxData,
setSwapsErrorKey,
showModal,
} from '../../../store/actions';
import {
ASSET_ROUTE,
BUILD_QUOTE_ROUTE,
DEFAULT_ROUTE,
SWAPS_ERROR_ROUTE,
AWAITING_SWAP_ROUTE,
} from '../../../helpers/constants/routes';
import { getTokenData } from '../../../helpers/utils/transactions.util';
import {
calcTokenAmount,
calcTokenValue,
getTokenValueParam,
} from '../../../helpers/utils/token-util';
import {
decimalToHex,
hexToDecimal,
getValueFromWeiHex,
} from '../../../helpers/utils/conversions.util';
import MainQuoteSummary from '../main-quote-summary';
import { calcGasTotal } from '../../send/send.utils';
import { getCustomTxParamsData } from '../../confirm-approve/confirm-approve.util';
import ActionableMessage from '../actionable-message';
import {
quotesToRenderableData,
getRenderableNetworkFeesForQuote,
} from '../swaps.util';
import { useTokenTracker } from '../../../hooks/useTokenTracker';
import { QUOTES_EXPIRED_ERROR } from '../../../../shared/constants/swaps';
import CountdownTimer from '../countdown-timer';
import SwapsFooter from '../swaps-footer';
import ViewQuotePriceDifference from './view-quote-price-difference';
export default function ViewQuote() {
const history = useHistory();
const dispatch = useDispatch();
const t = useContext(I18nContext);
const metaMetricsEvent = useContext(MetaMetricsContext);
const [dispatchedSafeRefetch, setDispatchedSafeRefetch] = useState(false);
const [submitClicked, setSubmitClicked] = useState(false);
const [selectQuotePopoverShown, setSelectQuotePopoverShown] = useState(false);
const [warningHidden, setWarningHidden] = useState(false);
const [originalApproveAmount, setOriginalApproveAmount] = useState(null);
const [
acknowledgedPriceDifference,
setAcknowledgedPriceDifference,
] = useState(false);
const priceDifferenceRiskyBuckets = ['high', 'medium'];
const routeState = useSelector(getBackgroundSwapRouteState);
const quotes = useSelector(getQuotes, isEqual);
useEffect(() => {
if (!Object.values(quotes).length) {
history.push(BUILD_QUOTE_ROUTE);
} else if (routeState === 'awaiting') {
history.push(AWAITING_SWAP_ROUTE);
}
}, [history, quotes, routeState]);
const quotesLastFetched = useSelector(getQuotesLastFetched);
// Select necessary data
const gasPrice = useSelector(getUsedSwapsGasPrice);
const customMaxGas = useSelector(getCustomSwapsGas);
const tokenConversionRates = useSelector(getTokenExchangeRates);
const memoizedTokenConversionRates = useEqualityCheck(tokenConversionRates);
const { balance: ethBalance } = useSelector(getSelectedAccount);
const conversionRate = useSelector(conversionRateSelector);
const currentCurrency = useSelector(getCurrentCurrency);
const swapsTokens = useSelector(getTokens);
const balanceError = useSelector(getBalanceError);
const fetchParams = useSelector(getFetchParams);
const approveTxParams = useSelector(getApproveTxParams);
const selectedQuote = useSelector(getSelectedQuote);
const topQuote = useSelector(getTopQuote);
const usedQuote = selectedQuote || topQuote;
const tradeValue = usedQuote?.trade?.value ?? '0x0';
const swapsQuoteRefreshTime = useSelector(getSwapsQuoteRefreshTime);
const defaultSwapsToken = useSelector(getSwapsDefaultToken);
const chainId = useSelector(getCurrentChainId);
const nativeCurrencySymbol = useSelector(getNativeCurrency);
const { isBestQuote } = usedQuote;
const fetchParamsSourceToken = fetchParams?.sourceToken;
const usedGasLimit =
usedQuote?.gasEstimateWithRefund ||
`0x${decimalToHex(usedQuote?.averageGas || 0)}`;
const gasLimitForMax = usedQuote?.gasEstimate || `0x0`;
const usedGasLimitWithMultiplier = new BigNumber(gasLimitForMax, 16)
.times(usedQuote?.gasMultiplier || FALLBACK_GAS_MULTIPLIER, 10)
.round(0)
.toString(16);
const nonCustomMaxGasLimit = usedQuote?.gasEstimate
? usedGasLimitWithMultiplier
: `0x${decimalToHex(usedQuote?.maxGas || 0)}`;
const maxGasLimit = customMaxGas || nonCustomMaxGasLimit;
const gasTotalInWeiHex = calcGasTotal(maxGasLimit, gasPrice);
const { tokensWithBalances } = useTokenTracker(swapsTokens, true);
const balanceToken =
fetchParamsSourceToken === defaultSwapsToken.address
? defaultSwapsToken
: tokensWithBalances.find(
({ address }) => address === fetchParamsSourceToken,
);
const selectedFromToken = balanceToken || usedQuote.sourceTokenInfo;
const tokenBalance =
tokensWithBalances?.length &&
calcTokenAmount(
selectedFromToken.balance || '0x0',
selectedFromToken.decimals,
).toFixed(9);
const tokenBalanceUnavailable =
tokensWithBalances && balanceToken === undefined;
const approveData = getTokenData(approveTxParams?.data);
const approveValue = approveData && getTokenValueParam(approveData);
const approveAmount =
approveValue &&
selectedFromToken?.decimals !== undefined &&
calcTokenAmount(approveValue, selectedFromToken.decimals).toFixed(9);
const approveGas = approveTxParams?.gas;
const renderablePopoverData = useMemo(() => {
return quotesToRenderableData(
quotes,
gasPrice,
conversionRate,
currentCurrency,
approveGas,
memoizedTokenConversionRates,
chainId,
);
}, [
quotes,
gasPrice,
conversionRate,
currentCurrency,
approveGas,
memoizedTokenConversionRates,
chainId,
]);
const renderableDataForUsedQuote = renderablePopoverData.find(
(renderablePopoverDatum) =>
renderablePopoverDatum.aggId === usedQuote.aggregator,
);
const {
destinationTokenDecimals,
destinationTokenSymbol,
destinationTokenValue,
destinationIconUrl,
sourceTokenDecimals,
sourceTokenSymbol,
sourceTokenValue,
sourceTokenIconUrl,
} = renderableDataForUsedQuote;
const { feeInFiat, feeInEth } = getRenderableNetworkFeesForQuote({
tradeGas: usedGasLimit,
approveGas,
gasPrice,
currentCurrency,
conversionRate,
tradeValue,
sourceSymbol: sourceTokenSymbol,
sourceAmount: usedQuote.sourceAmount,
chainId,
nativeCurrencySymbol,
});
const {
feeInFiat: maxFeeInFiat,
feeInEth: maxFeeInEth,
nonGasFee,
} = getRenderableNetworkFeesForQuote({
tradeGas: maxGasLimit,
approveGas,
gasPrice,
currentCurrency,
conversionRate,
tradeValue,
sourceSymbol: sourceTokenSymbol,
sourceAmount: usedQuote.sourceAmount,
chainId,
nativeCurrencySymbol,
});
const tokenCost = new BigNumber(usedQuote.sourceAmount);
const ethCost = new BigNumber(usedQuote.trade.value || 0, 10).plus(
new BigNumber(gasTotalInWeiHex, 16),
);
const insufficientTokens =
(tokensWithBalances?.length || balanceError) &&
tokenCost.gt(new BigNumber(selectedFromToken.balance || '0x0'));
const insufficientEth = ethCost.gt(new BigNumber(ethBalance || '0x0'));
const tokenBalanceNeeded = insufficientTokens
? toPrecisionWithoutTrailingZeros(
calcTokenAmount(tokenCost, selectedFromToken.decimals)
.minus(tokenBalance)
.toString(10),
6,
)
: null;
const ethBalanceNeeded = insufficientEth
? toPrecisionWithoutTrailingZeros(
ethCost
.minus(ethBalance, 16)
.div('1000000000000000000', 10)
.toString(10),
6,
)
: null;
const destinationToken = useSelector(getDestinationTokenInfo);
useEffect(() => {
if (insufficientTokens || insufficientEth) {
dispatch(setBalanceError(true));
} else if (balanceError && !insufficientTokens && !insufficientEth) {
dispatch(setBalanceError(false));
}
}, [insufficientTokens, insufficientEth, balanceError, dispatch]);
useEffect(() => {
const currentTime = Date.now();
const timeSinceLastFetched = currentTime - quotesLastFetched;
if (
timeSinceLastFetched > swapsQuoteRefreshTime &&
!dispatchedSafeRefetch
) {
setDispatchedSafeRefetch(true);
dispatch(safeRefetchQuotes());
} else if (timeSinceLastFetched > swapsQuoteRefreshTime) {
dispatch(setSwapsErrorKey(QUOTES_EXPIRED_ERROR));
history.push(SWAPS_ERROR_ROUTE);
}
}, [
quotesLastFetched,
dispatchedSafeRefetch,
dispatch,
history,
swapsQuoteRefreshTime,
]);
useEffect(() => {
if (!originalApproveAmount && approveAmount) {
setOriginalApproveAmount(approveAmount);
}
}, [originalApproveAmount, approveAmount]);
const showInsufficientWarning =
(balanceError || tokenBalanceNeeded || ethBalanceNeeded) && !warningHidden;
const numberOfQuotes = Object.values(quotes).length;
const bestQuoteReviewedEventSent = useRef();
const eventObjectBase = {
token_from: sourceTokenSymbol,
token_from_amount: sourceTokenValue,
token_to: destinationTokenSymbol,
token_to_amount: destinationTokenValue,
request_type: fetchParams?.balanceError,
slippage: fetchParams?.slippage,
custom_slippage: fetchParams?.slippage !== 2,
response_time: fetchParams?.responseTime,
best_quote_source: topQuote?.aggregator,
available_quotes: numberOfQuotes,
};
const hardwareWalletUsed = useSelector(isHardwareWallet);
const hardwareWalletType = useSelector(getHardwareWalletType);
const allAvailableQuotesOpened = useNewMetricEvent({
event: 'All Available Quotes Opened',
category: 'swaps',
sensitiveProperties: {
...eventObjectBase,
other_quote_selected: usedQuote?.aggregator !== topQuote?.aggregator,
other_quote_selected_source:
usedQuote?.aggregator === topQuote?.aggregator
? null
: usedQuote?.aggregator,
is_hardware_wallet: hardwareWalletUsed,
hardware_wallet_type: hardwareWalletType,
},
});
const quoteDetailsOpened = useNewMetricEvent({
event: 'Quote Details Opened',
category: 'swaps',
sensitiveProperties: {
...eventObjectBase,
other_quote_selected: usedQuote?.aggregator !== topQuote?.aggregator,
other_quote_selected_source:
usedQuote?.aggregator === topQuote?.aggregator
? null
: usedQuote?.aggregator,
is_hardware_wallet: hardwareWalletUsed,
hardware_wallet_type: hardwareWalletType,
},
});
const editSpendLimitOpened = useNewMetricEvent({
event: 'Edit Spend Limit Opened',
category: 'swaps',
sensitiveProperties: {
...eventObjectBase,
custom_spend_limit_set: originalApproveAmount === approveAmount,
custom_spend_limit_amount:
originalApproveAmount === approveAmount ? null : approveAmount,
is_hardware_wallet: hardwareWalletUsed,
hardware_wallet_type: hardwareWalletType,
},
});
const bestQuoteReviewedEvent = useNewMetricEvent({
event: 'Best Quote Reviewed',
category: 'swaps',
sensitiveProperties: {
...eventObjectBase,
network_fees: feeInFiat,
is_hardware_wallet: hardwareWalletUsed,
hardware_wallet_type: hardwareWalletType,
},
});
useEffect(() => {
if (
!bestQuoteReviewedEventSent.current &&
[
sourceTokenSymbol,
sourceTokenValue,
destinationTokenSymbol,
destinationTokenValue,
fetchParams,
topQuote,
numberOfQuotes,
feeInFiat,
].every((dep) => dep !== null && dep !== undefined)
) {
bestQuoteReviewedEventSent.current = true;
bestQuoteReviewedEvent();
}
}, [
sourceTokenSymbol,
sourceTokenValue,
destinationTokenSymbol,
destinationTokenValue,
fetchParams,
topQuote,
numberOfQuotes,
feeInFiat,
bestQuoteReviewedEvent,
]);
const metaMaskFee = usedQuote.fee;
const onFeeCardTokenApprovalClick = () => {
editSpendLimitOpened();
dispatch(
showModal({
name: 'EDIT_APPROVAL_PERMISSION',
decimals: selectedFromToken.decimals,
origin: 'MetaMask',
setCustomAmount: (newCustomPermissionAmount) => {
const customPermissionAmount =
newCustomPermissionAmount === ''
? originalApproveAmount
: newCustomPermissionAmount;
const newData = getCustomTxParamsData(approveTxParams.data, {
customPermissionAmount,
decimals: selectedFromToken.decimals,
});
if (
customPermissionAmount?.length &&
approveTxParams.data !== newData
) {
dispatch(setCustomApproveTxData(newData));
}
},
tokenAmount: originalApproveAmount,
customTokenAmount:
originalApproveAmount === approveAmount ? null : approveAmount,
tokenBalance,
tokenSymbol: selectedFromToken.symbol,
requiredMinimum: calcTokenAmount(
usedQuote.sourceAmount,
selectedFromToken.decimals,
),
}),
);
};
const nonGasFeeIsPositive = new BigNumber(nonGasFee, 16).gt(0);
const approveGasTotal = calcGasTotal(approveGas || '0x0', gasPrice);
const extraNetworkFeeTotalInHexWEI = new BigNumber(nonGasFee, 16)
.plus(approveGasTotal, 16)
.toString(16);
const extraNetworkFeeTotalInEth = getValueFromWeiHex({
value: extraNetworkFeeTotalInHexWEI,
toDenomination: 'ETH',
numberOfDecimals: 4,
});
let extraInfoRowLabel = '';
if (approveGas && nonGasFeeIsPositive) {
extraInfoRowLabel = t('approvalAndAggregatorTxFeeCost');
} else if (approveGas) {
extraInfoRowLabel = t('approvalTxGasCost');
} else if (nonGasFeeIsPositive) {
extraInfoRowLabel = t('aggregatorFeeCost');
}
const onFeeCardMaxRowClick = () =>
dispatch(
showModal({
name: 'CUSTOMIZE_METASWAP_GAS',
value: tradeValue,
customGasLimitMessage: approveGas
? t('extraApprovalGas', [hexToDecimal(approveGas)])
: '',
customTotalSupplement: approveGasTotal,
extraInfoRow: extraInfoRowLabel
? {
label: extraInfoRowLabel,
value: `${extraNetworkFeeTotalInEth} ${nativeCurrencySymbol}`,
}
: null,
initialGasPrice: gasPrice,
initialGasLimit: maxGasLimit,
minimumGasLimit: new BigNumber(nonCustomMaxGasLimit, 16).toNumber(),
}),
);
const tokenApprovalTextComponent = (
<span key="swaps-view-quote-approve-symbol-1" className="view-quote__bold">
{sourceTokenSymbol}
</span>
);
const actionableBalanceErrorMessage = tokenBalanceUnavailable
? t('swapTokenBalanceUnavailable', [sourceTokenSymbol])
: t('swapApproveNeedMoreTokens', [
<span key="swapApproveNeedMoreTokens-1" className="view-quote__bold">
{tokenBalanceNeeded || ethBalanceNeeded}
</span>,
tokenBalanceNeeded && !(sourceTokenSymbol === defaultSwapsToken.symbol)
? sourceTokenSymbol
: defaultSwapsToken.symbol,
]);
// Price difference warning
const priceSlippageBucket = usedQuote?.priceSlippage?.bucket;
const lastPriceDifferenceBucket = usePrevious(priceSlippageBucket);
// If the user agreed to a different bucket of risk, make them agree again
useEffect(() => {
if (
acknowledgedPriceDifference &&
lastPriceDifferenceBucket === 'medium' &&
priceSlippageBucket === 'high'
) {
setAcknowledgedPriceDifference(false);
}
}, [
priceSlippageBucket,
acknowledgedPriceDifference,
lastPriceDifferenceBucket,
]);
let viewQuotePriceDifferenceComponent = null;
const priceSlippageFromSource = useEthFiatAmount(
usedQuote?.priceSlippage?.sourceAmountInETH || 0,
{ showFiat: true },
);
const priceSlippageFromDestination = useEthFiatAmount(
usedQuote?.priceSlippage?.destinationAmountInETH || 0,
{ showFiat: true },
);
// We cannot present fiat value if there is a calculation error or no slippage
// from source or destination
const priceSlippageUnknownFiatValue =
!priceSlippageFromSource ||
!priceSlippageFromDestination ||
usedQuote?.priceSlippage?.calculationError;
let priceDifferencePercentage = 0;
if (usedQuote?.priceSlippage?.ratio) {
priceDifferencePercentage = parseFloat(
new BigNumber(usedQuote.priceSlippage.ratio, 10)
.minus(1, 10)
.times(100, 10)
.toFixed(2),
10,
);
}
const shouldShowPriceDifferenceWarning =
!tokenBalanceUnavailable &&
!showInsufficientWarning &&
usedQuote &&
(priceDifferenceRiskyBuckets.includes(priceSlippageBucket) ||
priceSlippageUnknownFiatValue);
if (shouldShowPriceDifferenceWarning) {
viewQuotePriceDifferenceComponent = (
<ViewQuotePriceDifference
usedQuote={usedQuote}
sourceTokenValue={sourceTokenValue}
destinationTokenValue={destinationTokenValue}
priceSlippageFromSource={priceSlippageFromSource}
priceSlippageFromDestination={priceSlippageFromDestination}
priceDifferencePercentage={priceDifferencePercentage}
priceSlippageUnknownFiatValue={priceSlippageUnknownFiatValue}
onAcknowledgementClick={() => {
setAcknowledgedPriceDifference(true);
}}
acknowledged={acknowledgedPriceDifference}
/>
);
}
const disableSubmissionDueToPriceWarning =
shouldShowPriceDifferenceWarning && !acknowledgedPriceDifference;
const isShowingWarning =
showInsufficientWarning || shouldShowPriceDifferenceWarning;
return (
<div className="view-quote">
<div
className={classnames('view-quote__content', {
'view-quote__content_modal': disableSubmissionDueToPriceWarning,
})}
>
{selectQuotePopoverShown && (
<SelectQuotePopover
quoteDataRows={renderablePopoverData}
onClose={() => setSelectQuotePopoverShown(false)}
onSubmit={(aggId) => dispatch(swapsQuoteSelected(aggId))}
swapToSymbol={destinationTokenSymbol}
initialAggId={usedQuote.aggregator}
onQuoteDetailsIsOpened={quoteDetailsOpened}
/>
)}
<div
className={classnames('view-quote__warning-wrapper', {
'view-quote__warning-wrapper--thin': !isShowingWarning,
})}
>
{viewQuotePriceDifferenceComponent}
{(showInsufficientWarning || tokenBalanceUnavailable) && (
<ActionableMessage
message={actionableBalanceErrorMessage}
onClose={() => setWarningHidden(true)}
/>
)}
</div>
<div className="view-quote__countdown-timer-container">
<CountdownTimer
timeStarted={quotesLastFetched}
warningTime="0:30"
infoTooltipLabelKey="swapQuotesAreRefreshed"
labelKey="swapNewQuoteIn"
/>
</div>
<MainQuoteSummary
sourceValue={calcTokenValue(sourceTokenValue, sourceTokenDecimals)}
sourceDecimals={sourceTokenDecimals}
sourceSymbol={sourceTokenSymbol}
destinationValue={calcTokenValue(
destinationTokenValue,
destinationTokenDecimals,
)}
destinationDecimals={destinationTokenDecimals}
destinationSymbol={destinationTokenSymbol}
sourceIconUrl={sourceTokenIconUrl}
destinationIconUrl={destinationIconUrl}
/>
<div
className={classnames('view-quote__fee-card-container', {
'view-quote__fee-card-container--three-rows':
approveTxParams && (!balanceError || warningHidden),
})}
>
<FeeCard
primaryFee={{
fee: feeInEth,
maxFee: maxFeeInEth,
}}
secondaryFee={{
fee: feeInFiat,
maxFee: maxFeeInFiat,
}}
onFeeCardMaxRowClick={onFeeCardMaxRowClick}
hideTokenApprovalRow={
!approveTxParams || (balanceError && !warningHidden)
}
tokenApprovalTextComponent={tokenApprovalTextComponent}
tokenApprovalSourceTokenSymbol={sourceTokenSymbol}
onTokenApprovalClick={onFeeCardTokenApprovalClick}
metaMaskFee={String(metaMaskFee)}
isBestQuote={isBestQuote}
numberOfQuotes={Object.values(quotes).length}
onQuotesClick={() => {
allAvailableQuotesOpened();
setSelectQuotePopoverShown(true);
}}
tokenConversionRate={
destinationTokenSymbol === defaultSwapsToken.symbol
? 1
: memoizedTokenConversionRates[destinationToken.address]
}
chainId={chainId}
/>
</div>
</div>
<SwapsFooter
onSubmit={() => {
setSubmitClicked(true);
if (!balanceError) {
dispatch(signAndSendTransactions(history, metaMetricsEvent));
} else if (destinationToken.symbol === defaultSwapsToken.symbol) {
history.push(DEFAULT_ROUTE);
} else {
history.push(`${ASSET_ROUTE}/${destinationToken.address}`);
}
}}
submitText={t('swap')}
onCancel={async () => await dispatch(navigateBackToBuildQuote(history))}
disabled={
submitClicked ||
balanceError ||
tokenBalanceUnavailable ||
disableSubmissionDueToPriceWarning ||
gasPrice === null ||
gasPrice === undefined
}
className={isShowingWarning && 'view-quote__thin-swaps-footer'}
showTopBorder
/>
</div>
);
}