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SwapPage.js
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SwapPage.js
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// @flow
import type { Node } from 'react';
import { useEffect, useState } from 'react';
import { Box, Button } from '@mui/material';
import { CreateSwapOrder } from './CreateSwapOrder';
import ConfirmSwapTransaction from './ConfirmSwapTransaction';
import TxSubmittedStep from './TxSubmittedStep';
import LimitOrderWarningDialog from '../../../components/swap/LimitOrderWarningDialog';
import type { StoresAndActionsProps } from '../../../types/injectedProps.types';
import { useSwap } from '@yoroi/swap';
import { runInAction } from 'mobx';
import { calculateAndFormatValue } from '../../../utils/unit-of-account';
import BigNumber from 'bignumber.js';
import SwapDisclaimerDialog from '../../../components/swap/SwapDisclaimerDialog';
import { ROUTES } from '../../../routes-config';
import type { PriceImpact } from '../../../components/swap/types';
import { PriceImpactAlert } from '../../../components/swap/PriceImpact';
import { StateWrap } from '../context/swap-form/types';
import LoadingSpinner from '../../../components/widgets/LoadingSpinner';
import { addressHexToBech32 } from '../../../api/ada/lib/cardanoCrypto/utils';
import { HaskellShelleyTxSignRequest } from '../../../api/ada/transactions/shelley/HaskellShelleyTxSignRequest';
import LoadingOverlay from '../../../components/swap/LoadingOverlay';
import { IncorrectWalletPasswordError } from '../../../api/common/errors';
import { observer } from 'mobx-react';
import useSwapForm from '../context/swap-form/useSwapForm';
export const PRICE_IMPACT_MODERATE_RISK = 1;
export const PRICE_IMPACT_HIGH_RISK = 10;
export const LIMIT_PRICE_WARNING_THRESHOLD = 0.1;
const SWAP_AGGREGATOR = 'muesliswap';
function SwapPage(props: StoresAndActionsProps): Node {
const [openedDialog, setOpenedDialog] = useState('');
const { orderStep, setOrderStepValue } = props.stores.substores.ada.swapStore;
const {
slippage,
slippageChanged,
orderData: {
type: orderType,
slippage: defaultSlippage,
selectedPoolCalculation,
amounts: { sell, buy },
limitPrice: orderLimitPrice,
},
frontendFeeTiersChanged,
orderData,
} = useSwap();
const { sellTokenInfo, buyTokenInfo } = useSwapForm();
const isMarketOrder = orderType === 'market';
const impact = isMarketOrder ? Number(selectedPoolCalculation?.prices.priceImpact ?? 0) : 0;
const priceImpactState: PriceImpact | null =
impact > PRICE_IMPACT_MODERATE_RISK ? { isSevere: impact > PRICE_IMPACT_HIGH_RISK } : null;
const [disclaimerStatus, setDisclaimerStatus] = useState<?boolean>(null);
const [selectedWalletAddress, setSelectedWalletAddress] = useState<?string>(null);
const [slippageValue, setSlippageValue] = useState(String(defaultSlippage));
const [signRequest, setSignRequest] = useState<?HaskellShelleyTxSignRequest>(null);
const userPasswordState = StateWrap(useState<string>(''));
const txSubmitErrorState = StateWrap(useState<?Error>(null));
const isValidTickers = sellTokenInfo?.ticker && buyTokenInfo?.ticker;
const swapFormCanContinue =
selectedPoolCalculation != null &&
sell.quantity !== '0' &&
buy.quantity !== '0' &&
isValidTickers;
const confirmationCanContinue = userPasswordState.value !== '' && signRequest != null;
const isButtonLoader = orderStep === 1 && signRequest == null;
const isSwapEnabled =
(orderStep === 0 && swapFormCanContinue) || (orderStep === 1 && confirmationCanContinue);
const wallet = props.stores.wallets.selectedOrFail;
const network = wallet.getParent().getNetworkInfo();
const defaultTokenInfo = props.stores.tokenInfoStore.getDefaultTokenInfoSummary(
network.NetworkId
);
const disclaimerFlag = props.stores.substores.ada.swapStore.swapDisclaimerAcceptanceFlag;
useEffect(() => {
disclaimerFlag
.get()
.then(setDisclaimerStatus)
.catch(e => {
console.error('Failed to load swap disclaimer status! Setting to false for safety', e);
setDisclaimerStatus(false);
});
slippage
.read()
.then(storedSlippage => {
if (storedSlippage > 0) {
runInAction(() => {
setSlippageValue(String(storedSlippage));
if (storedSlippage !== defaultSlippage) {
slippageChanged(storedSlippage);
}
});
}
return null;
})
.catch(e => {
console.error('Failed to load stored slippage', e);
});
props.stores.addresses
.getFirstExternalAddress(wallet)
.then(a => setSelectedWalletAddress(addressHexToBech32(a.address)))
.catch(e => {
console.error('Failed to load wallet address', e);
});
props.stores.substores.ada.stateFetchStore.fetcher
.getSwapFeeTiers({ network })
.then(feeTiers => {
const aggregatorFeeTiers = feeTiers?.[SWAP_AGGREGATOR] ?? [];
frontendFeeTiersChanged(aggregatorFeeTiers);
return null;
})
.catch(err => {
console.error(`unexpected error: failed to get swap fee tiers: ${err}`);
});
}, []);
const onAcceptDisclaimer = () => {
disclaimerFlag
.set(true)
.then(() => setDisclaimerStatus(true))
.catch(e => {
console.error('Failed to store swap acceptance status!', e);
setDisclaimerStatus(true);
});
};
const onSetNewSlippage = (newSlippage: number): void => {
runInAction(() => {
slippage.save(newSlippage);
slippageChanged(newSlippage);
setSlippageValue(String(newSlippage));
});
};
// <TODO:DEDUPLICATE> extract this and fix all places where it's duplicated
const getFormattedPairingValue = (lovelaces: string): string => {
const { currency } = props.stores.profile.unitOfAccount;
if (currency == null || defaultTokenInfo.ticker == null) return '-';
const price = props.stores.coinPriceStore.getCurrentPrice(defaultTokenInfo.ticker, currency);
const shiftedAmount = new BigNumber(lovelaces).shiftedBy(-(defaultTokenInfo.decimals ?? 0));
const val = price ? calculateAndFormatValue(shiftedAmount, price) : '-';
return `${val} ${currency}`;
};
async function processSwapOrder() {
try {
if (orderStep === 0) {
handleInitialStep();
} else if (orderStep === 1) {
await handleSubmitTransaction();
}
} catch (error) {
console.error('Error handling next step', error);
// Handle error appropriately
}
}
function handleInitialStep() {
if (openedDialog !== '') return;
if (isMarketOrder) {
handleMarketOrder();
} else {
handleLimitOrder();
}
setOrderStepValue(1);
setSignRequest(null);
}
function handleMarketOrder() {
if (priceImpactState?.isSevere) {
setOpenedDialog('priceImpactAlert');
}
}
function handleLimitOrder() {
const marketPrice = new BigNumber(selectedPoolCalculation.prices.market);
const limitPrice = new BigNumber(orderLimitPrice);
if (limitPrice.isGreaterThan(marketPrice.times(1 + LIMIT_PRICE_WARNING_THRESHOLD))) {
setOpenedDialog('limitOrderWarning');
}
}
async function handleSubmitTransaction() {
if (openedDialog !== '' || signRequest == null) return;
validateSignRequestAndUserPassword();
setOpenedDialog('loadingOverlay');
const password = userPasswordState.value;
try {
await props.stores.substores.ada.wallets.adaSendAndRefresh({
broadcastRequest: {
normal: {
publicDeriver: wallet,
password,
signRequest,
},
},
refreshWallet: () => props.stores.wallets.refreshWalletFromRemote(wallet),
});
setOrderStepValue(2);
} catch (e) {
handleTransactionError(e);
} finally {
setOpenedDialog('');
}
}
function validateSignRequestAndUserPassword() {
if (signRequest == null) {
throw new Error('Incorrect state! Order transaction is not prepared properly');
}
const password = userPasswordState.value;
if (password === '') {
throw new Error('Incorrect state! User password is required');
}
}
function handleTransactionError(e) {
const isPasswordError = e instanceof IncorrectWalletPasswordError;
runInAction(() => {
txSubmitErrorState.update(e);
if (!isPasswordError) {
setOrderStepValue(1);
}
});
if (!isPasswordError) {
console.error('Failed to submit swap tx', e);
}
}
const onRemoteOrderDataResolved: any => Promise<void> = async ({
contractAddress,
datum,
datumHash,
}) => {
// creating tx
if (selectedPoolCalculation == null) {
throw new Error(
'Incorrect state. Pool calculations are not available to prepare the transaction'
);
}
if (contractAddress == null || datum == null || datumHash == null) {
throw new Error(
`Incorrect remote order resolve! ${JSON.stringify({ contractAddress, datum, datumHash })}`
);
}
const {
pool: { provider: poolProvider, deposit, batcherFee },
cost,
} = selectedPoolCalculation;
const feFees = cost.frontendFeeInfo.fee;
const ptFees = { deposit: deposit.quantity, batcher: batcherFee.quantity };
const swapTxReq = {
wallet,
contractAddress,
datum,
datumHash,
sell,
buy,
feFees,
ptFees,
poolProvider,
};
const txSignRequest: HaskellShelleyTxSignRequest = await props.stores.substores.ada.swapStore.createUnsignedSwapTx(
swapTxReq
);
runInAction(() => {
setSignRequest(txSignRequest);
});
};
return (
<>
<Box display="flex" flexDirection="column" height="100%">
<Box
sx={{ flexGrow: '1', overflowY: 'auto', p: '24px' }}
borderBottom="1px solid"
borderColor="grayscale.200"
>
{orderStep === 0 && (
<CreateSwapOrder
swapStore={props.stores.substores.ada.swapStore}
slippageValue={slippageValue}
onSetNewSlippage={onSetNewSlippage}
defaultTokenInfo={defaultTokenInfo}
priceImpactState={priceImpactState}
/>
)}
{orderStep === 1 && (
<ConfirmSwapTransaction
slippageValue={slippageValue}
walletAddress={selectedWalletAddress}
priceImpactState={priceImpactState}
onRemoteOrderDataResolved={onRemoteOrderDataResolved}
userPasswordState={userPasswordState}
txSubmitErrorState={txSubmitErrorState}
defaultTokenInfo={defaultTokenInfo}
getFormattedPairingValue={getFormattedPairingValue}
/>
)}
{orderStep === 2 && (
<TxSubmittedStep
txSubmitErrorState={txSubmitErrorState}
onTryAgain={() => {
setOrderStepValue(0);
}}
onSuccess={() => {
props.actions.router.goToRoute.trigger({ route: ROUTES.SWAP.ORDERS });
setOrderStepValue(0);
}}
/>
)}
</Box>
{orderStep < 2 && (
<Box
flexShrink={0}
gap="24px"
p="24px"
display="flex"
alignItems="center"
justifyContent="center"
>
{orderStep === 1 && (
<Button
onClick={() => setOrderStepValue(0)}
sx={{ minWidth: '128px', minHeight: '48px' }}
variant="primary"
>
Back
</Button>
)}
<Button
onClick={processSwapOrder}
sx={{ minWidth: '128px', minHeight: '48px' }}
variant="primary"
disabled={!isSwapEnabled || isButtonLoader}
>
{(isButtonLoader && <LoadingSpinner />) || (orderStep === 0 ? 'Swap' : 'Confirm')}
</Button>
</Box>
)}
</Box>
{openedDialog === 'loadingOverlay' && <LoadingOverlay />}
{openedDialog === 'limitOrderWarning' && (
<LimitOrderWarningDialog
onContinue={() => {
setOrderStepValue(1);
setOpenedDialog('');
}}
onCancel={() => setOpenedDialog('')}
/>
)}
{openedDialog === 'priceImpactAlert' && (
<PriceImpactAlert
onContinue={() => {
setOrderStepValue(1);
setOpenedDialog('');
}}
onCancel={() => setOpenedDialog('')}
/>
)}
{disclaimerStatus === false && (
<SwapDisclaimerDialog
onDialogConfirm={onAcceptDisclaimer}
onDialogRefuse={() => {
props.actions.router.redirect.trigger({ route: ROUTES.WALLETS.ROOT });
}}
/>
)}
</>
);
}
export default (observer(SwapPage): React$ComponentType<StoresAndActionsProps>);