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mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-12-05 07:24:56 +01:00
metamask-extension/ui/pages/swaps/build-quote/build-quote.js
Daniel a17c4462b4
Add token decimals validation in Swaps (#11587)
* Add token decimals validation in Swaps
* Use camelCase
2021-07-22 19:29:31 +02:00

601 lines
19 KiB
JavaScript

import React, { useContext, useEffect, useState, useCallback } from 'react';
import PropTypes from 'prop-types';
import { 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 {
fetchQuotesAndSetQuoteState,
setSwapsFromToken,
setSwapToToken,
getFromToken,
getToToken,
getBalanceError,
getTopAssets,
getFetchParams,
} from '../../../ducks/swaps/swaps';
import {
getSwapsDefaultToken,
getTokenExchangeRates,
getCurrentCurrency,
getCurrentChainId,
getRpcPrefsForCurrentProvider,
} from '../../../selectors';
import {
getValueFromWeiHex,
hexToDecimal,
} from '../../../helpers/utils/conversions.util';
import { calcTokenAmount } from '../../../helpers/utils/token-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 } from '../../../../shared/constants/swaps';
import { resetSwapsPostFetchState, removeToken } from '../../../store/actions';
import { fetchTokenPrice, fetchTokenBalance } 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;
export default function BuildQuote({
inputValue,
onInputChange,
ethBalance,
setMaxSlippage,
maxSlippage,
selectedAccountAddress,
isFeatureFlagLoaded,
tokenFromError,
}) {
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 balanceError = useSelector(getBalanceError);
const fetchParams = useSelector(getFetchParams);
const { sourceTokenInfo = {}, destinationTokenInfo = {} } =
fetchParams?.metaData || {};
const tokens = useSelector(getTokens);
const topAssets = useSelector(getTopAssets);
const fromToken = useSelector(getFromToken);
const toToken = useSelector(getToToken) || destinationTokenInfo;
const defaultSwapsToken = useSelector(getSwapsDefaultToken);
const chainId = useSelector(getCurrentChainId);
const rpcPrefs = useSelector(getRpcPrefsForCurrentProvider);
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,
);
const tokensToSearch = useTokensToSearch({
usersTokens: memoizedUsersTokens,
topTokens: topAssets,
});
const selectedToToken =
tokensToSearch.find(({ address }) => 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 fromTokenBalance =
rawFromTokenBalance &&
calcTokenAmount(rawFromTokenBalance, fromTokenDecimals).toString(10);
const prevFromTokenBalance = usePrevious(fromTokenBalance);
const swapFromTokenFiatValue = useTokenFiatAmount(
fromTokenAddress,
inputValue || 0,
fromTokenSymbol,
{
showFiat: true,
},
true,
);
const swapFromEthFiatValue = useEthFiatAmount(
inputValue || 0,
{ showFiat: true },
true,
);
const swapFromFiatValue = isSwapsDefaultTokenSymbol(fromTokenSymbol, chainId)
? swapFromEthFiatValue
: swapFromTokenFiatValue;
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) => 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 ? inputValue : '',
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
? new URL(blockExplorerTokenLink).hostname
: t('etherscan');
const blockExplorerLinkClickedEvent = useNewMetricEvent({
category: 'Swaps',
event: 'Clicked Block Explorer Link',
properties: {
link_type: 'Token Tracker',
action: 'Swaps Confirmation',
block_explorer_domain: blockExplorerTokenLink
? new URL(blockExplorerTokenLink)?.hostname
: '',
},
});
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) => item.address === fromTokenAddress,
[fromTokenAddress],
);
const tokensWithBalancesFromToken = tokensWithBalances.find(
(token) => token.address === fromToken?.address,
);
const previousTokensWithBalancesFromToken = usePrevious(
tokensWithBalancesFromToken,
);
useEffect(() => {
const notDefault = !isSwapsDefaultTokenAddress(
tokensWithBalancesFromToken?.address,
chainId,
);
const addressesAreTheSame =
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(inputValue, fromTokenBalance);
}
}, [onInputChange, prevFromTokenBalance, inputValue, fromTokenBalance]);
useEffect(() => {
dispatch(resetSwapsPostFetchState());
}, [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,
]);
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"
onClick={() =>
onInputChange(fromTokenBalance || '0', fromTokenBalance)
}
>
{t('max')}
</div>
)}
</div>
<DropdownInputPair
onSelect={onFromSelect}
itemsToSearch={tokensToSearch}
onInputChange={(value) => {
onInputChange(value, fromTokenBalance);
}}
inputValue={inputValue}
leftValue={inputValue && swapFromFiatValue}
selectedItem={selectedFromToken}
maxListItems={30}
loading={
loading &&
(!tokensToSearch?.length ||
!topAssets ||
!Object.keys(topAssets).length)
}
selectPlaceHolderText={t('swapSelect')}
hideItemIf={(item) => item.address === selectedToToken?.address}
listContainerClassName="build-quote__open-dropdown"
autoFocus
/>
<div
className={classnames('build-quote__balance-message', {
'build-quote__balance-message--error':
balanceError || tokenFromError,
})}
>
{!tokenFromError &&
!balanceError &&
fromTokenSymbol &&
swapYourTokenBalance}
{!tokenFromError && 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>
)}
{tokenFromError && (
<>
<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>
))}
<div className="build-quote__slippage-buttons-container">
<SlippageButtons
onSelect={(newSlippage) => {
setMaxSlippage(newSlippage);
}}
maxAllowedSlippage={MAX_ALLOWED_SLIPPAGE}
currentSlippage={maxSlippage}
/>
</div>
</div>
<SwapsFooter
onSubmit={() => {
dispatch(
fetchQuotesAndSetQuoteState(
history,
inputValue,
maxSlippage,
metaMetricsEvent,
),
);
}}
submitText={t('swapReviewSwap')}
disabled={
tokenFromError ||
!isFeatureFlagLoaded ||
!Number(inputValue) ||
!selectedToToken?.address ||
Number(maxSlippage) < 0 ||
Number(maxSlippage) > MAX_ALLOWED_SLIPPAGE ||
(toTokenIsNotDefault && occurrences < 2 && !verificationClicked)
}
hideCancel
showTermsOfService
/>
</div>
);
}
BuildQuote.propTypes = {
maxSlippage: PropTypes.number,
inputValue: PropTypes.string,
onInputChange: PropTypes.func,
ethBalance: PropTypes.string,
setMaxSlippage: PropTypes.func,
selectedAccountAddress: PropTypes.string,
isFeatureFlagLoaded: PropTypes.bool.isRequired,
tokenFromError: PropTypes.string,
};