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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import { isSwapStep, Route } from '@lifinance/sdk'; | ||
| import Big from 'big.js'; | ||
| import { useMemo } from 'react'; | ||
| import { useWatch } from 'react-hook-form'; | ||
| import { SwapFormKeyHelper } from '../providers/SwapFormProvider'; | ||
| import { useTokens } from './useTokens'; | ||
|
|
||
| export const useHasSufficientBalance = (route?: Route) => { | ||
| const [fromChainId, toChainId] = useWatch({ | ||
| name: [ | ||
| SwapFormKeyHelper.getChainKey('from'), | ||
| SwapFormKeyHelper.getChainKey('to'), | ||
| ], | ||
| }); | ||
| const lastStep = route?.steps.at(-1); | ||
| const { tokensWithBalance: fromChainTokenBalances } = useTokens(fromChainId); | ||
| const { tokensWithBalance: toChainTokenBalances } = useTokens( | ||
| lastStep?.action.fromChainId ?? toChainId, | ||
| ); | ||
|
|
||
| const hasGasBalanceOnStartChain = useMemo(() => { | ||
| const token = route?.steps[0].estimate.gasCosts?.[0].token; | ||
| if (!token) { | ||
| return true; | ||
| } | ||
| const balance = Big( | ||
| fromChainTokenBalances?.[route.fromChainId].find( | ||
| (t) => t.address === token.address, | ||
| )?.amount ?? 0, | ||
| ); | ||
| const requiredAmount = route.steps | ||
| .filter((step) => step.action.fromChainId === route.fromChainId) | ||
| .map((step) => step.estimate.gasCosts?.[0].amount) | ||
| .map((amount) => Big(amount || 0)) | ||
| .reduce((a, b) => a.plus(b), Big(0)) | ||
| .div(10 ** token.decimals); | ||
| return balance.gt(0) && balance.gte(requiredAmount); | ||
| }, [fromChainTokenBalances, route]); | ||
|
|
||
| const hasGasOnCrossChain = useMemo(() => { | ||
| const token = lastStep?.estimate.gasCosts?.[0].token; | ||
| if (!token || !isSwapStep(lastStep)) { | ||
| return true; | ||
| } | ||
| const balance = Big( | ||
| toChainTokenBalances?.[lastStep.action.fromChainId].find( | ||
| (t) => t.address === token.address, | ||
| )?.amount ?? 0, | ||
| ); | ||
| const gasEstimate = lastStep.estimate.gasCosts?.[0].amount; | ||
| const requiredAmount = Big(gasEstimate || 0).div( | ||
| 10 ** (lastStep.estimate.gasCosts?.[0].token.decimals ?? 0), | ||
| ); | ||
| return balance.gt(0) && balance.gte(requiredAmount); | ||
| }, [lastStep, toChainTokenBalances]); | ||
|
|
||
| const hasSufficientBalance = useMemo(() => { | ||
| if (!route) { | ||
| return true; | ||
| } | ||
|
|
||
| const balance = Big( | ||
| fromChainTokenBalances?.[route.fromChainId].find( | ||
| (t) => t.address === route.fromToken.address, | ||
| )?.amount ?? 0, | ||
| ); | ||
|
|
||
| return Big(route.fromAmount) | ||
| .div(10 ** (route.fromToken.decimals ?? 0)) | ||
| .lte(balance); | ||
| }, [fromChainTokenBalances, route]); | ||
|
|
||
| return { | ||
| hasGasBalanceOnStartChain, | ||
| hasGasOnCrossChain, | ||
| hasSufficientBalance, | ||
| }; | ||
| }; |
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