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

import React, {
  useState,
  useContext,
  useMemo,
  useEffect,
  useRef,
  useCallback,
} from 'react';
import { shallowEqual, 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 { usePrevious } from '../../../hooks/usePrevious';
import { useGasFeeInputs } from '../../../hooks/gasFeeInput/useGasFeeInputs';
import { MetaMetricsContext } from '../../../contexts/metametrics';
import FeeCard from '../fee-card';
import {
  FALLBACK_GAS_MULTIPLIER,
  getQuotes,
  getSelectedQuote,
  getApproveTxParams,
  getFetchParams,
  setBalanceError,
  getQuotesLastFetched,
  getBalanceError,
  getCustomSwapsGas, // Gas limit.
  getCustomMaxFeePerGas,
  getCustomMaxPriorityFeePerGas,
  getSwapsUserFeeLevel,
  getDestinationTokenInfo,
  getUsedSwapsGasPrice,
  getTopQuote,
  signAndSendTransactions,
  getBackgroundSwapRouteState,
  swapsQuoteSelected,
  getSwapsQuoteRefreshTime,
  getReviewSwapClickedTimestamp,
  getSmartTransactionsOptInStatus,
  signAndSendSwapsSmartTransaction,
  getSwapsNetworkConfig,
  getSmartTransactionsEnabled,
  getSmartTransactionsError,
  getCurrentSmartTransactionsError,
  getCurrentSmartTransactionsErrorMessageDismissed,
  getSwapsSTXLoading,
  fetchSwapsSmartTransactionFees,
  getSmartTransactionFees,
} from '../../../ducks/swaps/swaps';
import {
  conversionRateSelector,
  getSelectedAccount,
  getCurrentCurrency,
  getTokenExchangeRates,
  getSwapsDefaultToken,
  getCurrentChainId,
  isHardwareWallet,
  getHardwareWalletType,
  checkNetworkAndAccountSupports1559,
  getUSDConversionRate,
} from '../../../selectors';
import { getNativeCurrency, getTokens } from '../../../ducks/metamask/metamask';

import { toPrecisionWithoutTrailingZeros } from '../../../helpers/utils/util';

import {
  safeRefetchQuotes,
  setCustomApproveTxData,
  setSwapsErrorKey,
  showModal,
  setSwapsQuotesPollingLimitEnabled,
} from '../../../store/actions';
import { SET_SMART_TRANSACTIONS_ERROR } from '../../../store/actionConstants';
import {
  ASSET_ROUTE,
  BUILD_QUOTE_ROUTE,
  DEFAULT_ROUTE,
  SWAPS_ERROR_ROUTE,
  AWAITING_SWAP_ROUTE,
} from '../../../helpers/constants/routes';
import {
  calcTokenAmount,
  calcTokenValue,
  getTokenValueParam,
} from '../../../helpers/utils/token-util';
import {
  decimalToHex,
  decGWEIToHexWEI,
  hexWEIToDecGWEI,
  addHexes,
  decWEIToDecETH,
} 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 '../../../components/ui/actionable-message/actionable-message';
import {
  quotesToRenderableData,
  getRenderableNetworkFeesForQuote,
  getFeeForSmartTransaction,
} from '../swaps.util';
import { useTokenTracker } from '../../../hooks/useTokenTracker';
import { QUOTES_EXPIRED_ERROR } from '../../../../shared/constants/swaps';
import { GAS_RECOMMENDATIONS } from '../../../../shared/constants/gas';
import CountdownTimer from '../countdown-timer';
import SwapsFooter from '../swaps-footer';
import PulseLoader from '../../../components/ui/pulse-loader'; // TODO: Replace this with a different loading component.
import Box from '../../../components/ui/box';
import { EVENT } from '../../../../shared/constants/metametrics';
import { isEqualCaseInsensitive } from '../../../../shared/modules/string-utils';
import { parseStandardTokenTransactionData } from '../../../../shared/modules/transaction.utils';
import ViewQuotePriceDifference from './view-quote-price-difference';

let intervalId;

export default function ViewQuote() {
  const history = useHistory();
  const dispatch = useDispatch();
  const t = useContext(I18nContext);
  const trackEvent = 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);
  // We need to have currentTimestamp in state, otherwise it would change with each rerender.
  const [currentTimestamp] = useState(Date.now());

  const [acknowledgedPriceDifference, setAcknowledgedPriceDifference] =
    useState(false);
  const priceDifferenceRiskyBuckets = [
    GAS_RECOMMENDATIONS.HIGH,
    GAS_RECOMMENDATIONS.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 customMaxFeePerGas = useSelector(getCustomMaxFeePerGas);
  const customMaxPriorityFeePerGas = useSelector(getCustomMaxPriorityFeePerGas);
  const swapsUserFeeLevel = useSelector(getSwapsUserFeeLevel);
  const tokenConversionRates = useSelector(getTokenExchangeRates, isEqual);
  const memoizedTokenConversionRates = useEqualityCheck(tokenConversionRates);
  const { balance: ethBalance } = useSelector(getSelectedAccount, shallowEqual);
  const conversionRate = useSelector(conversionRateSelector);
  const USDConversionRate = useSelector(getUSDConversionRate);
  const currentCurrency = useSelector(getCurrentCurrency);
  const swapsTokens = useSelector(getTokens, isEqual);
  const networkAndAccountSupports1559 = useSelector(
    checkNetworkAndAccountSupports1559,
  );
  const balanceError = useSelector(getBalanceError);
  const fetchParams = useSelector(getFetchParams, isEqual);
  const approveTxParams = useSelector(getApproveTxParams, shallowEqual);
  const selectedQuote = useSelector(getSelectedQuote, isEqual);
  const topQuote = useSelector(getTopQuote, isEqual);
  const usedQuote = selectedQuote || topQuote;
  const tradeValue = usedQuote?.trade?.value ?? '0x0';
  const swapsQuoteRefreshTime = useSelector(getSwapsQuoteRefreshTime);
  const defaultSwapsToken = useSelector(getSwapsDefaultToken, isEqual);
  const chainId = useSelector(getCurrentChainId);
  const nativeCurrencySymbol = useSelector(getNativeCurrency);
  const reviewSwapClickedTimestamp = useSelector(getReviewSwapClickedTimestamp);
  const smartTransactionsOptInStatus = useSelector(
    getSmartTransactionsOptInStatus,
  );
  const smartTransactionsEnabled = useSelector(getSmartTransactionsEnabled);
  const swapsSTXLoading = useSelector(getSwapsSTXLoading);
  const currentSmartTransactionsError = useSelector(
    getCurrentSmartTransactionsError,
  );
  const smartTransactionsError = useSelector(getSmartTransactionsError);
  const currentSmartTransactionsErrorMessageDismissed = useSelector(
    getCurrentSmartTransactionsErrorMessageDismissed,
  );
  const currentSmartTransactionsEnabled =
    smartTransactionsEnabled &&
    !(
      currentSmartTransactionsError &&
      (currentSmartTransactionsError !== 'not_enough_funds' ||
        currentSmartTransactionsErrorMessageDismissed)
    );
  const smartTransactionFees = useSelector(getSmartTransactionFees, isEqual);
  const swapsNetworkConfig = useSelector(getSwapsNetworkConfig, shallowEqual);
  const unsignedTransaction = usedQuote.trade;

  let gasFeeInputs;
  if (networkAndAccountSupports1559) {
    // For Swaps we want to get 'high' estimations by default.
    // eslint-disable-next-line react-hooks/rules-of-hooks
    gasFeeInputs = useGasFeeInputs(GAS_RECOMMENDATIONS.HIGH, {
      userFeeLevel: swapsUserFeeLevel || GAS_RECOMMENDATIONS.HIGH,
    });
  }

  const { isBestQuote } = usedQuote;

  const fetchParamsSourceToken = fetchParams?.sourceToken;

  const additionalTrackingParams = {
    reg_tx_fee_in_usd: undefined,
    reg_tx_fee_in_eth: undefined,
    reg_tx_max_fee_in_usd: undefined,
    reg_tx_max_fee_in_eth: undefined,
    stx_fee_in_usd: undefined,
    stx_fee_in_eth: undefined,
    stx_max_fee_in_usd: undefined,
    stx_max_fee_in_eth: undefined,
  };

  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;

  let maxFeePerGas;
  let maxPriorityFeePerGas;
  let baseAndPriorityFeePerGas;

  // EIP-1559 gas fees.
  if (networkAndAccountSupports1559) {
    const {
      maxFeePerGas: suggestedMaxFeePerGas,
      maxPriorityFeePerGas: suggestedMaxPriorityFeePerGas,
      gasFeeEstimates: { estimatedBaseFee = '0' },
    } = gasFeeInputs;
    maxFeePerGas = customMaxFeePerGas || decGWEIToHexWEI(suggestedMaxFeePerGas);
    maxPriorityFeePerGas =
      customMaxPriorityFeePerGas ||
      decGWEIToHexWEI(suggestedMaxPriorityFeePerGas);
    baseAndPriorityFeePerGas = addHexes(
      decGWEIToHexWEI(estimatedBaseFee),
      maxPriorityFeePerGas,
    );
  }

  const gasTotalInWeiHex = calcGasTotal(maxGasLimit, maxFeePerGas || gasPrice);

  const { tokensWithBalances } = useTokenTracker(swapsTokens, true);
  const balanceToken =
    fetchParamsSourceToken === defaultSwapsToken.address
      ? defaultSwapsToken
      : tokensWithBalances.find(({ address }) =>
          isEqualCaseInsensitive(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 = parseStandardTokenTransactionData(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,
      networkAndAccountSupports1559 ? baseAndPriorityFeePerGas : gasPrice,
      conversionRate,
      currentCurrency,
      approveGas,
      memoizedTokenConversionRates,
      chainId,
      smartTransactionsEnabled &&
        smartTransactionsOptInStatus &&
        smartTransactionFees?.tradeTxFees,
      nativeCurrencySymbol,
    );
  }, [
    quotes,
    gasPrice,
    baseAndPriorityFeePerGas,
    networkAndAccountSupports1559,
    conversionRate,
    currentCurrency,
    approveGas,
    memoizedTokenConversionRates,
    chainId,
    smartTransactionFees?.tradeTxFees,
    nativeCurrencySymbol,
    smartTransactionsEnabled,
    smartTransactionsOptInStatus,
  ]);

  const renderableDataForUsedQuote = renderablePopoverData.find(
    (renderablePopoverDatum) =>
      renderablePopoverDatum.aggId === usedQuote.aggregator,
  );

  const {
    destinationTokenDecimals,
    destinationTokenSymbol,
    destinationTokenValue,
    destinationIconUrl,
    sourceTokenDecimals,
    sourceTokenSymbol,
    sourceTokenValue,
    sourceTokenIconUrl,
  } = renderableDataForUsedQuote;

  let { feeInFiat, feeInEth, rawEthFee, feeInUsd } =
    getRenderableNetworkFeesForQuote({
      tradeGas: usedGasLimit,
      approveGas,
      gasPrice: networkAndAccountSupports1559
        ? baseAndPriorityFeePerGas
        : gasPrice,
      currentCurrency,
      conversionRate,
      USDConversionRate,
      tradeValue,
      sourceSymbol: sourceTokenSymbol,
      sourceAmount: usedQuote.sourceAmount,
      chainId,
      nativeCurrencySymbol,
    });
  additionalTrackingParams.reg_tx_fee_in_usd = Number(feeInUsd);
  additionalTrackingParams.reg_tx_fee_in_eth = Number(rawEthFee);

  const renderableMaxFees = getRenderableNetworkFeesForQuote({
    tradeGas: maxGasLimit,
    approveGas,
    gasPrice: maxFeePerGas || gasPrice,
    currentCurrency,
    conversionRate,
    USDConversionRate,
    tradeValue,
    sourceSymbol: sourceTokenSymbol,
    sourceAmount: usedQuote.sourceAmount,
    chainId,
    nativeCurrencySymbol,
  });
  let {
    feeInFiat: maxFeeInFiat,
    feeInEth: maxFeeInEth,
    rawEthFee: maxRawEthFee,
    feeInUsd: maxFeeInUsd,
  } = renderableMaxFees;
  additionalTrackingParams.reg_tx_max_fee_in_usd = Number(maxFeeInUsd);
  additionalTrackingParams.reg_tx_max_fee_in_eth = Number(maxRawEthFee);

  if (
    currentSmartTransactionsEnabled &&
    smartTransactionsOptInStatus &&
    smartTransactionFees?.tradeTxFees
  ) {
    const stxEstimatedFeeInWeiDec =
      smartTransactionFees?.tradeTxFees.feeEstimate +
      (smartTransactionFees?.approvalTxFees?.feeEstimate || 0);
    const stxMaxFeeInWeiDec =
      stxEstimatedFeeInWeiDec * swapsNetworkConfig.stxMaxFeeMultiplier;
    ({ feeInFiat, feeInEth, rawEthFee, feeInUsd } = getFeeForSmartTransaction({
      chainId,
      currentCurrency,
      conversionRate,
      USDConversionRate,
      nativeCurrencySymbol,
      feeInWeiDec: stxEstimatedFeeInWeiDec,
    }));
    additionalTrackingParams.stx_fee_in_usd = Number(feeInUsd);
    additionalTrackingParams.stx_fee_in_eth = Number(rawEthFee);
    additionalTrackingParams.estimated_gas =
      smartTransactionFees?.tradeTxFees.gasLimit;
    ({
      feeInFiat: maxFeeInFiat,
      feeInEth: maxFeeInEth,
      rawEthFee: maxRawEthFee,
      feeInUsd: maxFeeInUsd,
    } = getFeeForSmartTransaction({
      chainId,
      currentCurrency,
      conversionRate,
      USDConversionRate,
      nativeCurrencySymbol,
      feeInWeiDec: stxMaxFeeInWeiDec,
    }));
    additionalTrackingParams.stx_max_fee_in_usd = Number(maxFeeInUsd);
    additionalTrackingParams.stx_max_fee_in_eth = Number(maxRawEthFee);
  }

  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;

  let ethBalanceNeededStx;
  if (smartTransactionsError?.balanceNeededWei) {
    ethBalanceNeededStx = decWEIToDecETH(
      smartTransactionsError.balanceNeededWei -
        smartTransactionsError.currentBalanceWei,
    );
  }

  const destinationToken = useSelector(getDestinationTokenInfo, isEqual);
  useEffect(() => {
    if (currentSmartTransactionsEnabled && smartTransactionsOptInStatus) {
      if (insufficientTokens) {
        dispatch(setBalanceError(true));
      } else if (balanceError && !insufficientTokens) {
        dispatch(setBalanceError(false));
      }
    } else if (insufficientTokens || insufficientEth) {
      dispatch(setBalanceError(true));
    } else if (balanceError && !insufficientTokens && !insufficientEth) {
      dispatch(setBalanceError(false));
    }
  }, [
    insufficientTokens,
    insufficientEth,
    balanceError,
    dispatch,
    currentSmartTransactionsEnabled,
    smartTransactionsOptInStatus,
  ]);

  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]);

  // If it's not a Smart Transaction and ETH balance is needed, we want to show a warning.
  const isNotStxAndEthBalanceIsNeeded =
    (!currentSmartTransactionsEnabled || !smartTransactionsOptInStatus) &&
    ethBalanceNeeded;

  // If it's a Smart Transaction and ETH balance is needed, we want to show a warning.
  const isStxAndEthBalanceIsNeeded =
    currentSmartTransactionsEnabled &&
    smartTransactionsOptInStatus &&
    ethBalanceNeededStx;

  // Indicates if we should show to a user a warning about insufficient funds for swapping.
  const showInsufficientWarning =
    (balanceError ||
      tokenBalanceNeeded ||
      isNotStxAndEthBalanceIsNeeded ||
      isStxAndEthBalanceIsNeeded) &&
    !warningHidden;

  const hardwareWalletUsed = useSelector(isHardwareWallet);
  const hardwareWalletType = useSelector(getHardwareWalletType);

  const numberOfQuotes = Object.values(quotes).length;
  const bestQuoteReviewedEventSent = useRef();
  const eventObjectBase = useMemo(() => {
    return {
      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,
      is_hardware_wallet: hardwareWalletUsed,
      hardware_wallet_type: hardwareWalletType,
      stx_enabled: smartTransactionsEnabled,
      current_stx_enabled: currentSmartTransactionsEnabled,
      stx_user_opt_in: smartTransactionsOptInStatus,
    };
  }, [
    sourceTokenSymbol,
    sourceTokenValue,
    destinationTokenSymbol,
    destinationTokenValue,
    fetchParams?.balanceError,
    fetchParams?.slippage,
    fetchParams?.responseTime,
    topQuote?.aggregator,
    numberOfQuotes,
    hardwareWalletUsed,
    hardwareWalletType,
    smartTransactionsEnabled,
    currentSmartTransactionsEnabled,
    smartTransactionsOptInStatus,
  ]);

  const trackAllAvailableQuotesOpened = () => {
    trackEvent({
      event: 'All Available Quotes Opened',
      category: EVENT.CATEGORIES.SWAPS,
      sensitiveProperties: {
        ...eventObjectBase,
        other_quote_selected: usedQuote?.aggregator !== topQuote?.aggregator,
        other_quote_selected_source:
          usedQuote?.aggregator === topQuote?.aggregator
            ? null
            : usedQuote?.aggregator,
      },
    });
  };
  const trackQuoteDetailsOpened = () => {
    trackEvent({
      event: 'Quote Details Opened',
      category: EVENT.CATEGORIES.SWAPS,
      sensitiveProperties: {
        ...eventObjectBase,
        other_quote_selected: usedQuote?.aggregator !== topQuote?.aggregator,
        other_quote_selected_source:
          usedQuote?.aggregator === topQuote?.aggregator
            ? null
            : usedQuote?.aggregator,
      },
    });
  };
  const trackEditSpendLimitOpened = () => {
    trackEvent({
      event: 'Edit Spend Limit Opened',
      category: EVENT.CATEGORIES.SWAPS,
      sensitiveProperties: {
        ...eventObjectBase,
        custom_spend_limit_set: originalApproveAmount === approveAmount,
        custom_spend_limit_amount:
          originalApproveAmount === approveAmount ? null : approveAmount,
      },
    });
  };
  const trackBestQuoteReviewedEvent = useCallback(() => {
    trackEvent({
      event: 'Best Quote Reviewed',
      category: EVENT.CATEGORIES.SWAPS,
      sensitiveProperties: {
        ...eventObjectBase,
        network_fees: feeInFiat,
      },
    });
  }, [trackEvent, eventObjectBase, feeInFiat]);
  const trackViewQuotePageLoadedEvent = useCallback(() => {
    trackEvent({
      event: 'View Quote Page Loaded',
      category: EVENT.CATEGORIES.SWAPS,
      sensitiveProperties: {
        ...eventObjectBase,
        response_time: currentTimestamp - reviewSwapClickedTimestamp,
      },
    });
  }, [
    trackEvent,
    eventObjectBase,
    currentTimestamp,
    reviewSwapClickedTimestamp,
  ]);

  useEffect(() => {
    if (
      !bestQuoteReviewedEventSent.current &&
      [
        sourceTokenSymbol,
        sourceTokenValue,
        destinationTokenSymbol,
        destinationTokenValue,
        fetchParams,
        topQuote,
        numberOfQuotes,
        feeInFiat,
      ].every((dep) => dep !== null && dep !== undefined)
    ) {
      bestQuoteReviewedEventSent.current = true;
      trackBestQuoteReviewedEvent();
    }
  }, [
    fetchParams,
    topQuote,
    numberOfQuotes,
    feeInFiat,
    destinationTokenSymbol,
    destinationTokenValue,
    sourceTokenSymbol,
    sourceTokenValue,
    trackBestQuoteReviewedEvent,
  ]);

  const metaMaskFee = usedQuote.fee;

  const onFeeCardTokenApprovalClick = () => {
    trackEditSpendLimitOpened();
    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 actionableBalanceErrorMessage = tokenBalanceUnavailable
    ? t('swapTokenBalanceUnavailable', [sourceTokenSymbol])
    : t('swapApproveNeedMoreTokens', [
        <span key="swapApproveNeedMoreTokens-1" className="view-quote__bold">
          {tokenBalanceNeeded || ethBalanceNeededStx || 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 === GAS_RECOMMENDATIONS.MEDIUM &&
      priceSlippageBucket === GAS_RECOMMENDATIONS.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;

  const isSwapButtonDisabled = Boolean(
    submitClicked ||
      balanceError ||
      tokenBalanceUnavailable ||
      disableSubmissionDueToPriceWarning ||
      (networkAndAccountSupports1559 &&
        baseAndPriorityFeePerGas === undefined) ||
      (!networkAndAccountSupports1559 &&
        (gasPrice === null || gasPrice === undefined)) ||
      (currentSmartTransactionsEnabled &&
        (currentSmartTransactionsError || smartTransactionsError)) ||
      (currentSmartTransactionsEnabled &&
        smartTransactionsOptInStatus &&
        !smartTransactionFees?.tradeTxFees),
  );

  useEffect(() => {
    if (
      currentSmartTransactionsEnabled &&
      smartTransactionsOptInStatus &&
      !insufficientTokens
    ) {
      const unsignedTx = {
        from: unsignedTransaction.from,
        to: unsignedTransaction.to,
        value: unsignedTransaction.value,
        data: unsignedTransaction.data,
        gas: unsignedTransaction.gas,
        chainId,
      };
      intervalId = setInterval(() => {
        if (!swapsSTXLoading) {
          dispatch(
            fetchSwapsSmartTransactionFees({
              unsignedTransaction: unsignedTx,
              approveTxParams,
              fallbackOnNotEnoughFunds: false,
            }),
          );
        }
      }, swapsNetworkConfig.stxGetTransactionsRefreshTime);
      dispatch(
        fetchSwapsSmartTransactionFees({
          unsignedTransaction: unsignedTx,
          approveTxParams,
          fallbackOnNotEnoughFunds: false,
        }),
      );
    } else if (intervalId) {
      clearInterval(intervalId);
    }
    return () => clearInterval(intervalId);
    // eslint-disable-next-line
  }, [
    dispatch,
    currentSmartTransactionsEnabled,
    smartTransactionsOptInStatus,
    unsignedTransaction.data,
    unsignedTransaction.from,
    unsignedTransaction.value,
    unsignedTransaction.gas,
    unsignedTransaction.to,
    chainId,
    swapsNetworkConfig.stxGetTransactionsRefreshTime,
    insufficientTokens,
  ]);

  useEffect(() => {
    // Thanks to the next line we will only do quotes polling 3 times before showing a Quote Timeout modal.
    dispatch(setSwapsQuotesPollingLimitEnabled(true));
    if (reviewSwapClickedTimestamp) {
      trackViewQuotePageLoadedEvent();
    }
  }, [dispatch, trackViewQuotePageLoadedEvent, reviewSwapClickedTimestamp]);

  useEffect(() => {
    // if smart transaction error is turned off, reset submit clicked boolean
    if (
      !currentSmartTransactionsEnabled &&
      currentSmartTransactionsError &&
      submitClicked
    ) {
      setSubmitClicked(false);
    }
  }, [
    currentSmartTransactionsEnabled,
    currentSmartTransactionsError,
    submitClicked,
  ]);

  useEffect(() => {
    if (currentSmartTransactionsEnabled && smartTransactionsOptInStatus) {
      // Removes a smart transactions error when the component loads.
      dispatch({
        type: SET_SMART_TRANSACTIONS_ERROR,
        payload: null,
      });
    }
  }, [currentSmartTransactionsEnabled, smartTransactionsOptInStatus, dispatch]);

  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={trackQuoteDetailsOpened}
            hideEstimatedGasFee={
              smartTransactionsEnabled && smartTransactionsOptInStatus
            }
          />
        )}

        <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="0:10"
            labelKey="swapNewQuoteIn"
          />
        </div>
        <MainQuoteSummary
          sourceValue={calcTokenValue(sourceTokenValue, sourceTokenDecimals)}
          sourceDecimals={sourceTokenDecimals}
          sourceSymbol={sourceTokenSymbol}
          destinationValue={calcTokenValue(
            destinationTokenValue,
            destinationTokenDecimals,
          )}
          destinationDecimals={destinationTokenDecimals}
          destinationSymbol={destinationTokenSymbol}
          sourceIconUrl={sourceTokenIconUrl}
          destinationIconUrl={destinationIconUrl}
        />
        {currentSmartTransactionsEnabled &&
          smartTransactionsOptInStatus &&
          !smartTransactionFees?.tradeTxFees &&
          !showInsufficientWarning && (
            <Box marginTop={0} marginBottom={10}>
              <PulseLoader />
            </Box>
          )}
        {(!currentSmartTransactionsEnabled ||
          !smartTransactionsOptInStatus ||
          smartTransactionFees?.tradeTxFees) && (
          <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,
              }}
              hideTokenApprovalRow={
                !approveTxParams || (balanceError && !warningHidden)
              }
              tokenApprovalSourceTokenSymbol={sourceTokenSymbol}
              onTokenApprovalClick={onFeeCardTokenApprovalClick}
              metaMaskFee={String(metaMaskFee)}
              numberOfQuotes={Object.values(quotes).length}
              onQuotesClick={() => {
                trackAllAvailableQuotesOpened();
                setSelectQuotePopoverShown(true);
              }}
              chainId={chainId}
              isBestQuote={isBestQuote}
              maxPriorityFeePerGasDecGWEI={hexWEIToDecGWEI(
                maxPriorityFeePerGas,
              )}
              maxFeePerGasDecGWEI={hexWEIToDecGWEI(maxFeePerGas)}
            />
          </div>
        )}
      </div>
      <SwapsFooter
        onSubmit={() => {
          setSubmitClicked(true);
          if (!balanceError) {
            if (
              currentSmartTransactionsEnabled &&
              smartTransactionsOptInStatus &&
              smartTransactionFees?.tradeTxFees
            ) {
              dispatch(
                signAndSendSwapsSmartTransaction({
                  unsignedTransaction,
                  trackEvent,
                  history,
                  additionalTrackingParams,
                }),
              );
            } else {
              dispatch(
                signAndSendTransactions(
                  history,
                  trackEvent,
                  additionalTrackingParams,
                ),
              );
            }
          } else if (destinationToken.symbol === defaultSwapsToken.symbol) {
            history.push(DEFAULT_ROUTE);
          } else {
            history.push(`${ASSET_ROUTE}/${destinationToken.address}`);
          }
        }}
        submitText={
          currentSmartTransactionsEnabled &&
          smartTransactionsOptInStatus &&
          swapsSTXLoading
            ? t('preparingSwap')
            : t('swap')
        }
        hideCancel
        disabled={isSwapButtonDisabled}
        className={isShowingWarning && 'view-quote__thin-swaps-footer'}
        showTopBorder
      />
    </div>
  );
}