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metamask-extension/ui/pages/swaps/build-quote/build-quote.js
Matthew Epps 7a92e22111
Swaps optimizations (#12842)
* Trigger Build

* Trigger Build

* Move swaps index variables to redux

* all optimizations so far

* Add better equality checks for selectors in swaps index and build quote

* Clean up PR, remove extra code and logs

* Clean up lavamoat file

* Fixes for optimizations

* Update tests and test snapshots

* Remove unnecessary tests

* Remove unnecessary console log

* Trigger Build

* Trigger Build

* Add delay to account for remote call made by trezor keyring

Co-authored-by: Dan Miller <danjm.com@gmail.com>
2021-12-01 12:55:09 -03:30

729 lines
23 KiB
JavaScript

import React, { useContext, useEffect, useState, useCallback } from 'react';
import BigNumber from 'bignumber.js';
import PropTypes from 'prop-types';
import { shallowEqual, useDispatch, useSelector } from 'react-redux';
import classnames from 'classnames';
import { uniqBy, isEqual } from 'lodash';
import { useHistory } from 'react-router-dom';
import { getTokenTrackerLink } from '@metamask/etherscan-link';
import { MetaMetricsContext } from '../../../contexts/metametrics.new';
import { useNewMetricEvent } from '../../../hooks/useMetricEvent';
import {
useTokensToSearch,
getRenderableTokenData,
} from '../../../hooks/useTokensToSearch';
import { useEqualityCheck } from '../../../hooks/useEqualityCheck';
import { I18nContext } from '../../../contexts/i18n';
import DropdownInputPair from '../dropdown-input-pair';
import DropdownSearchList from '../dropdown-search-list';
import SlippageButtons from '../slippage-buttons';
import { getTokens, getConversionRate } from '../../../ducks/metamask/metamask';
import InfoTooltip from '../../../components/ui/info-tooltip';
import ActionableMessage from '../../../components/ui/actionable-message/actionable-message';
import {
VIEW_QUOTE_ROUTE,
LOADING_QUOTES_ROUTE,
} from '../../../helpers/constants/routes';
import {
fetchQuotesAndSetQuoteState,
setSwapsFromToken,
setSwapToToken,
getFromToken,
getToToken,
getBalanceError,
getTopAssets,
getFetchParams,
getQuotes,
setBalanceError,
setFromTokenInputValue,
setFromTokenError,
setMaxSlippage,
setReviewSwapClickedTimestamp,
getFromTokenInputValue,
getFromTokenError,
getMaxSlippage,
getIsFeatureFlagLoaded,
} from '../../../ducks/swaps/swaps';
import {
getSwapsDefaultToken,
getTokenExchangeRates,
getCurrentCurrency,
getCurrentChainId,
getRpcPrefsForCurrentProvider,
getUseTokenDetection,
getTokenList,
} from '../../../selectors';
import {
getValueFromWeiHex,
hexToDecimal,
} from '../../../helpers/utils/conversions.util';
import { calcTokenAmount } from '../../../helpers/utils/token-util';
import {
getURLHostName,
isEqualCaseInsensitive,
} from '../../../helpers/utils/util';
import { usePrevious } from '../../../hooks/usePrevious';
import { useTokenTracker } from '../../../hooks/useTokenTracker';
import { useTokenFiatAmount } from '../../../hooks/useTokenFiatAmount';
import { useEthFiatAmount } from '../../../hooks/useEthFiatAmount';
import {
isSwapsDefaultTokenAddress,
isSwapsDefaultTokenSymbol,
} from '../../../../shared/modules/swaps.utils';
import {
SWAPS_CHAINID_DEFAULT_BLOCK_EXPLORER_URL_MAP,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP,
} from '../../../../shared/constants/swaps';
import {
resetSwapsPostFetchState,
removeToken,
setBackgroundSwapRouteState,
clearSwapsQuotes,
stopPollingForQuotes,
} from '../../../store/actions';
import {
countDecimals,
fetchTokenPrice,
fetchTokenBalance,
shouldEnableDirectWrapping,
} from '../swaps.util';
import SwapsFooter from '../swaps-footer';
const fuseSearchKeys = [
{ name: 'name', weight: 0.499 },
{ name: 'symbol', weight: 0.499 },
{ name: 'address', weight: 0.002 },
];
const MAX_ALLOWED_SLIPPAGE = 15;
let timeoutIdForQuotesPrefetching;
export default function BuildQuote({
ethBalance,
selectedAccountAddress,
shuffledTokensList,
}) {
const t = useContext(I18nContext);
const dispatch = useDispatch();
const history = useHistory();
const metaMetricsEvent = useContext(MetaMetricsContext);
const [fetchedTokenExchangeRate, setFetchedTokenExchangeRate] = useState(
undefined,
);
const [verificationClicked, setVerificationClicked] = useState(false);
const isFeatureFlagLoaded = useSelector(getIsFeatureFlagLoaded);
const balanceError = useSelector(getBalanceError);
const fetchParams = useSelector(getFetchParams, isEqual);
const { sourceTokenInfo = {}, destinationTokenInfo = {} } =
fetchParams?.metaData || {};
const tokens = useSelector(getTokens, isEqual);
const topAssets = useSelector(getTopAssets);
const fromToken = useSelector(getFromToken, isEqual);
const fromTokenInputValue = useSelector(getFromTokenInputValue);
const fromTokenError = useSelector(getFromTokenError);
const maxSlippage = useSelector(getMaxSlippage);
const toToken = useSelector(getToToken) || destinationTokenInfo;
const defaultSwapsToken = useSelector(getSwapsDefaultToken, isEqual);
const chainId = useSelector(getCurrentChainId);
const rpcPrefs = useSelector(getRpcPrefsForCurrentProvider, shallowEqual);
const tokenList = useSelector(getTokenList, isEqual);
const useTokenDetection = useSelector(getUseTokenDetection);
const quotes = useSelector(getQuotes, isEqual);
const areQuotesPresent = Object.keys(quotes).length > 0;
const tokenConversionRates = useSelector(getTokenExchangeRates, isEqual);
const conversionRate = useSelector(getConversionRate);
const currentCurrency = useSelector(getCurrentCurrency);
const fetchParamsFromToken = isSwapsDefaultTokenSymbol(
sourceTokenInfo?.symbol,
chainId,
)
? defaultSwapsToken
: sourceTokenInfo;
const { loading, tokensWithBalances } = useTokenTracker(tokens);
// If the fromToken was set in a call to `onFromSelect` (see below), and that from token has a balance
// but is not in tokensWithBalances or tokens, then we want to add it to the usersTokens array so that
// the balance of the token can appear in the from token selection dropdown
const fromTokenArray =
!isSwapsDefaultTokenSymbol(fromToken?.symbol, chainId) && fromToken?.balance
? [fromToken]
: [];
const usersTokens = uniqBy(
[...tokensWithBalances, ...tokens, ...fromTokenArray],
'address',
);
const memoizedUsersTokens = useEqualityCheck(usersTokens);
const selectedFromToken = getRenderableTokenData(
fromToken || fetchParamsFromToken,
tokenConversionRates,
conversionRate,
currentCurrency,
chainId,
tokenList,
useTokenDetection,
);
const tokensToSearch = useTokensToSearch({
usersTokens: memoizedUsersTokens,
topTokens: topAssets,
shuffledTokensList,
});
const selectedToToken =
tokensToSearch.find(({ address }) =>
isEqualCaseInsensitive(address, toToken?.address),
) || toToken;
const toTokenIsNotDefault =
selectedToToken?.address &&
!isSwapsDefaultTokenAddress(selectedToToken?.address, chainId);
const occurrences = Number(
selectedToToken?.occurances || selectedToToken?.occurrences || 0,
);
const {
address: fromTokenAddress,
symbol: fromTokenSymbol,
string: fromTokenString,
decimals: fromTokenDecimals,
balance: rawFromTokenBalance,
} = selectedFromToken || {};
const { address: toTokenAddress } = selectedToToken || {};
const fromTokenBalance =
rawFromTokenBalance &&
calcTokenAmount(rawFromTokenBalance, fromTokenDecimals).toString(10);
const prevFromTokenBalance = usePrevious(fromTokenBalance);
const swapFromTokenFiatValue = useTokenFiatAmount(
fromTokenAddress,
fromTokenInputValue || 0,
fromTokenSymbol,
{
showFiat: true,
},
true,
);
const swapFromEthFiatValue = useEthFiatAmount(
fromTokenInputValue || 0,
{ showFiat: true },
true,
);
const swapFromFiatValue = isSwapsDefaultTokenSymbol(fromTokenSymbol, chainId)
? swapFromEthFiatValue
: swapFromTokenFiatValue;
const onInputChange = useCallback(
(newInputValue, balance) => {
dispatch(setFromTokenInputValue(newInputValue));
const newBalanceError = new BigNumber(newInputValue || 0).gt(
balance || 0,
);
// "setBalanceError" is just a warning, a user can still click on the "Review Swap" button.
if (balanceError !== newBalanceError) {
dispatch(setBalanceError(newBalanceError));
}
dispatch(
setFromTokenError(
fromToken && countDecimals(newInputValue) > fromToken.decimals
? 'tooManyDecimals'
: null,
),
);
},
[dispatch, fromToken, balanceError],
);
const onFromSelect = (token) => {
if (
token?.address &&
!swapFromFiatValue &&
fetchedTokenExchangeRate !== null
) {
fetchTokenPrice(token.address).then((rate) => {
if (rate !== null && rate !== undefined) {
setFetchedTokenExchangeRate(rate);
}
});
} else {
setFetchedTokenExchangeRate(null);
}
if (
token?.address &&
!memoizedUsersTokens.find((usersToken) =>
isEqualCaseInsensitive(usersToken.address, token.address),
)
) {
fetchTokenBalance(token.address, selectedAccountAddress).then(
(fetchedBalance) => {
if (fetchedBalance?.balance) {
const balanceAsDecString = fetchedBalance.balance.toString(10);
const userTokenBalance = calcTokenAmount(
balanceAsDecString,
token.decimals,
);
dispatch(
setSwapsFromToken({
...token,
string: userTokenBalance.toString(10),
balance: balanceAsDecString,
}),
);
}
},
);
}
dispatch(setSwapsFromToken(token));
onInputChange(
token?.address ? fromTokenInputValue : '',
token.string,
token.decimals,
);
};
const blockExplorerTokenLink = getTokenTrackerLink(
selectedToToken.address,
chainId,
null, // no networkId
null, // no holderAddress
{
blockExplorerUrl:
rpcPrefs.blockExplorerUrl ??
SWAPS_CHAINID_DEFAULT_BLOCK_EXPLORER_URL_MAP[chainId] ??
null,
},
);
const blockExplorerLabel = rpcPrefs.blockExplorerUrl
? getURLHostName(blockExplorerTokenLink)
: t('etherscan');
const blockExplorerLinkClickedEvent = useNewMetricEvent({
category: 'Swaps',
event: 'Clicked Block Explorer Link',
properties: {
link_type: 'Token Tracker',
action: 'Swaps Confirmation',
block_explorer_domain: getURLHostName(blockExplorerTokenLink),
},
});
const { destinationTokenAddedForSwap } = fetchParams || {};
const { address: toAddress } = toToken || {};
const onToSelect = useCallback(
(token) => {
if (destinationTokenAddedForSwap && token.address !== toAddress) {
dispatch(removeToken(toAddress));
}
dispatch(setSwapToToken(token));
setVerificationClicked(false);
},
[dispatch, destinationTokenAddedForSwap, toAddress],
);
const hideDropdownItemIf = useCallback(
(item) => isEqualCaseInsensitive(item.address, fromTokenAddress),
[fromTokenAddress],
);
const tokensWithBalancesFromToken = tokensWithBalances.find((token) =>
isEqualCaseInsensitive(token.address, fromToken?.address),
);
const previousTokensWithBalancesFromToken = usePrevious(
tokensWithBalancesFromToken,
);
useEffect(() => {
const notDefault = !isSwapsDefaultTokenAddress(
tokensWithBalancesFromToken?.address,
chainId,
);
const addressesAreTheSame = isEqualCaseInsensitive(
tokensWithBalancesFromToken?.address,
previousTokensWithBalancesFromToken?.address,
);
const balanceHasChanged =
tokensWithBalancesFromToken?.balance !==
previousTokensWithBalancesFromToken?.balance;
if (notDefault && addressesAreTheSame && balanceHasChanged) {
dispatch(
setSwapsFromToken({
...fromToken,
balance: tokensWithBalancesFromToken?.balance,
string: tokensWithBalancesFromToken?.string,
}),
);
}
}, [
dispatch,
tokensWithBalancesFromToken,
previousTokensWithBalancesFromToken,
fromToken,
chainId,
]);
// If the eth balance changes while on build quote, we update the selected from token
useEffect(() => {
if (
isSwapsDefaultTokenAddress(fromToken?.address, chainId) &&
fromToken?.balance !== hexToDecimal(ethBalance)
) {
dispatch(
setSwapsFromToken({
...fromToken,
balance: hexToDecimal(ethBalance),
string: getValueFromWeiHex({
value: ethBalance,
numberOfDecimals: 4,
toDenomination: 'ETH',
}),
}),
);
}
}, [dispatch, fromToken, ethBalance, chainId]);
useEffect(() => {
if (prevFromTokenBalance !== fromTokenBalance) {
onInputChange(fromTokenInputValue, fromTokenBalance);
}
}, [
onInputChange,
prevFromTokenBalance,
fromTokenInputValue,
fromTokenBalance,
]);
useEffect(() => {
dispatch(resetSwapsPostFetchState());
dispatch(setReviewSwapClickedTimestamp());
}, [dispatch]);
const BlockExplorerLink = () => {
return (
<a
className="build-quote__token-etherscan-link build-quote__underline"
key="build-quote-etherscan-link"
onClick={() => {
blockExplorerLinkClickedEvent();
global.platform.openTab({
url: blockExplorerTokenLink,
});
}}
target="_blank"
rel="noopener noreferrer"
>
{blockExplorerLabel}
</a>
);
};
let tokenVerificationDescription = '';
if (blockExplorerTokenLink) {
if (occurrences === 1) {
tokenVerificationDescription = t('verifyThisTokenOn', [
<BlockExplorerLink key="block-explorer-link" />,
]);
} else if (occurrences === 0) {
tokenVerificationDescription = t('verifyThisUnconfirmedTokenOn', [
<BlockExplorerLink key="block-explorer-link" />,
]);
}
}
const swapYourTokenBalance = t('swapYourTokenBalance', [
fromTokenString || '0',
fromTokenSymbol || SWAPS_CHAINID_DEFAULT_TOKEN_MAP[chainId]?.symbol || '',
]);
const isDirectWrappingEnabled = shouldEnableDirectWrapping(
chainId,
fromTokenAddress,
selectedToToken.address,
);
const isReviewSwapButtonDisabled =
fromTokenError ||
!isFeatureFlagLoaded ||
!Number(fromTokenInputValue) ||
!selectedToToken?.address ||
Number(maxSlippage) < 0 ||
Number(maxSlippage) > MAX_ALLOWED_SLIPPAGE ||
(toTokenIsNotDefault && occurrences < 2 && !verificationClicked);
// It's triggered every time there is a change in form values (token from, token to, amount and slippage).
useEffect(() => {
dispatch(clearSwapsQuotes());
dispatch(stopPollingForQuotes());
const prefetchQuotesWithoutRedirecting = async () => {
const pageRedirectionDisabled = true;
await dispatch(
fetchQuotesAndSetQuoteState(
history,
fromTokenInputValue,
maxSlippage,
metaMetricsEvent,
pageRedirectionDisabled,
),
);
};
// Delay fetching quotes until a user is done typing an input value. If they type a new char in less than a second,
// we will cancel previous setTimeout call and start running a new one.
timeoutIdForQuotesPrefetching = setTimeout(() => {
timeoutIdForQuotesPrefetching = null;
if (!isReviewSwapButtonDisabled) {
// Only do quotes prefetching if the Review Swap button is enabled.
prefetchQuotesWithoutRedirecting();
}
}, 1000);
return () => clearTimeout(timeoutIdForQuotesPrefetching);
}, [
dispatch,
history,
maxSlippage,
metaMetricsEvent,
isReviewSwapButtonDisabled,
fromTokenInputValue,
fromTokenAddress,
toTokenAddress,
]);
return (
<div className="build-quote">
<div className="build-quote__content">
<div className="build-quote__dropdown-input-pair-header">
<div className="build-quote__input-label">{t('swapSwapFrom')}</div>
{!isSwapsDefaultTokenSymbol(fromTokenSymbol, chainId) && (
<div
className="build-quote__max-button"
data-testid="build-quote__max-button"
onClick={() =>
onInputChange(fromTokenBalance || '0', fromTokenBalance)
}
>
{t('max')}
</div>
)}
</div>
<DropdownInputPair
onSelect={onFromSelect}
itemsToSearch={tokensToSearch}
onInputChange={(value) => {
onInputChange(value, fromTokenBalance);
}}
inputValue={fromTokenInputValue}
leftValue={fromTokenInputValue && swapFromFiatValue}
selectedItem={selectedFromToken}
maxListItems={30}
loading={
loading &&
(!tokensToSearch?.length ||
!topAssets ||
!Object.keys(topAssets).length)
}
selectPlaceHolderText={t('swapSelect')}
hideItemIf={(item) =>
isEqualCaseInsensitive(item.address, selectedToToken?.address)
}
listContainerClassName="build-quote__open-dropdown"
autoFocus
/>
<div
className={classnames('build-quote__balance-message', {
'build-quote__balance-message--error':
balanceError || fromTokenError,
})}
>
{!fromTokenError &&
!balanceError &&
fromTokenSymbol &&
swapYourTokenBalance}
{!fromTokenError && balanceError && fromTokenSymbol && (
<div className="build-quite__insufficient-funds">
<div className="build-quite__insufficient-funds-first">
{t('swapsNotEnoughForTx', [fromTokenSymbol])}
</div>
<div className="build-quite__insufficient-funds-second">
{swapYourTokenBalance}
</div>
</div>
)}
{fromTokenError && (
<>
<div className="build-quote__form-error">
{t('swapTooManyDecimalsError', [
fromTokenSymbol,
fromTokenDecimals,
])}
</div>
<div>{swapYourTokenBalance}</div>
</>
)}
</div>
<div className="build-quote__swap-arrows-row">
<button
className="build-quote__swap-arrows"
onClick={() => {
onToSelect(selectedFromToken);
onFromSelect(selectedToToken);
}}
>
<img
src="./images/icons/swap2.svg"
alt={t('swapSwapSwitch')}
width="12"
height="16"
/>
</button>
</div>
<div className="build-quote__dropdown-swap-to-header">
<div className="build-quote__input-label">{t('swapSwapTo')}</div>
</div>
<div className="dropdown-input-pair dropdown-input-pair__to">
<DropdownSearchList
startingItem={selectedToToken}
itemsToSearch={tokensToSearch}
searchPlaceholderText={t('swapSearchForAToken')}
fuseSearchKeys={fuseSearchKeys}
selectPlaceHolderText={t('swapSelectAToken')}
maxListItems={30}
onSelect={onToSelect}
loading={
loading &&
(!tokensToSearch?.length ||
!topAssets ||
!Object.keys(topAssets).length)
}
externallySelectedItem={selectedToToken}
hideItemIf={hideDropdownItemIf}
listContainerClassName="build-quote__open-to-dropdown"
hideRightLabels
defaultToAll
shouldSearchForImports
/>
</div>
{toTokenIsNotDefault &&
(occurrences < 2 ? (
<ActionableMessage
type={occurrences === 1 ? 'warning' : 'danger'}
message={
<div className="build-quote__token-verification-warning-message">
<div className="build-quote__bold">
{occurrences === 1
? t('swapTokenVerificationOnlyOneSource')
: t('swapTokenVerificationAddedManually')}
</div>
<div>{tokenVerificationDescription}</div>
</div>
}
primaryAction={
verificationClicked
? null
: {
label: t('continue'),
onClick: () => setVerificationClicked(true),
}
}
withRightButton
infoTooltipText={
blockExplorerTokenLink &&
t('swapVerifyTokenExplanation', [blockExplorerLabel])
}
/>
) : (
<div className="build-quote__token-message">
<span
className="build-quote__bold"
key="token-verification-bold-text"
>
{t('swapTokenVerificationSources', [occurrences])}
</span>
{blockExplorerTokenLink && (
<>
{t('swapTokenVerificationMessage', [
<a
className="build-quote__token-etherscan-link"
key="build-quote-etherscan-link"
onClick={() => {
blockExplorerLinkClickedEvent();
global.platform.openTab({
url: blockExplorerTokenLink,
});
}}
target="_blank"
rel="noopener noreferrer"
>
{blockExplorerLabel}
</a>,
])}
<InfoTooltip
position="top"
contentText={t('swapVerifyTokenExplanation', [
blockExplorerLabel,
])}
containerClassName="build-quote__token-tooltip-container"
key="token-verification-info-tooltip"
/>
</>
)}
</div>
))}
{!isDirectWrappingEnabled && (
<div className="build-quote__slippage-buttons-container">
<SlippageButtons
onSelect={(newSlippage) => {
dispatch(setMaxSlippage(newSlippage));
}}
maxAllowedSlippage={MAX_ALLOWED_SLIPPAGE}
currentSlippage={maxSlippage}
/>
</div>
)}
</div>
<SwapsFooter
onSubmit={async () => {
// We need this to know how long it took to go from clicking on the Review Swap button to rendered View Quote page.
dispatch(setReviewSwapClickedTimestamp(Date.now()));
// In case that quotes prefetching is waiting to be executed, but hasn't started yet,
// we want to cancel it and fetch quotes from here.
if (timeoutIdForQuotesPrefetching) {
clearTimeout(timeoutIdForQuotesPrefetching);
dispatch(
fetchQuotesAndSetQuoteState(
history,
fromTokenInputValue,
maxSlippage,
metaMetricsEvent,
),
);
} else if (areQuotesPresent) {
// If there are prefetched quotes already, go directly to the View Quote page.
history.push(VIEW_QUOTE_ROUTE);
} else {
// If the "Review Swap" button was clicked while quotes are being fetched, go to the Loading Quotes page.
await dispatch(setBackgroundSwapRouteState('loading'));
history.push(LOADING_QUOTES_ROUTE);
}
}}
submitText={t('swapReviewSwap')}
disabled={isReviewSwapButtonDisabled}
hideCancel
showTermsOfService
/>
</div>
);
}
BuildQuote.propTypes = {
ethBalance: PropTypes.string,
selectedAccountAddress: PropTypes.string,
shuffledTokensList: PropTypes.array,
};