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110 changes: 110 additions & 0 deletions
110
packages/synapse-interface/components/StateManagedBridge/hooks/useConfirmNewBridgePrice.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| import { useState, useEffect, useMemo, useRef } from 'react' | ||
|
|
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| import { useBridgeState } from '@/slices/bridge/hooks' | ||
| import { useBridgeQuoteState } from '@/slices/bridgeQuote/hooks' | ||
| import { constructStringifiedBridgeSelections } from './useBridgeValidations' | ||
| import { BridgeQuote } from '@/utils/types' | ||
|
|
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| export const useConfirmNewBridgePrice = () => { | ||
| const quoteRef = useRef<any>(null) | ||
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| const [hasQuoteOutputChanged, setHasQuoteOutputChanged] = | ||
| useState<boolean>(false) | ||
| const [hasUserConfirmedChange, setHasUserConfirmedChange] = | ||
| useState<boolean>(false) | ||
|
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| const { bridgeQuote, previousBridgeQuote } = useBridgeQuoteState() | ||
| const { debouncedFromValue, fromToken, toToken, fromChainId, toChainId } = | ||
| useBridgeState() | ||
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| const currentBridgeQuoteSelections = useMemo( | ||
| () => | ||
| constructStringifiedBridgeSelections( | ||
| debouncedFromValue, | ||
| fromChainId, | ||
| fromToken, | ||
| toChainId, | ||
| toToken | ||
| ), | ||
| [debouncedFromValue, fromChainId, fromToken, toChainId, toToken] | ||
| ) | ||
|
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| const previousBridgeQuoteSelections = useMemo( | ||
| () => | ||
| constructStringifiedBridgeSelections( | ||
| previousBridgeQuote?.inputAmountForQuote, | ||
| previousBridgeQuote?.originChainId, | ||
| previousBridgeQuote?.originTokenForQuote, | ||
| previousBridgeQuote?.destChainId, | ||
| previousBridgeQuote?.destTokenForQuote | ||
| ), | ||
| [previousBridgeQuote] | ||
| ) | ||
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| const hasSameSelectionsAsPreviousQuote = useMemo( | ||
| () => currentBridgeQuoteSelections === previousBridgeQuoteSelections, | ||
| [currentBridgeQuoteSelections, previousBridgeQuoteSelections] | ||
| ) | ||
|
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| useEffect(() => { | ||
| const validQuotes = | ||
| bridgeQuote?.outputAmount && previousBridgeQuote?.outputAmount | ||
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| const outputAmountDiffMoreThan1bps = validQuotes | ||
| ? calculateOutputRelativeDifference( | ||
| bridgeQuote, | ||
| quoteRef.current ?? previousBridgeQuote | ||
| ) > 0.0001 | ||
| : false | ||
|
|
||
| if ( | ||
| validQuotes && | ||
| outputAmountDiffMoreThan1bps && | ||
| hasSameSelectionsAsPreviousQuote | ||
| ) { | ||
| requestUserConfirmChange(previousBridgeQuote) | ||
| } else { | ||
| resetConfirm() | ||
| } | ||
| }, [bridgeQuote, previousBridgeQuote, hasSameSelectionsAsPreviousQuote]) | ||
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| const requestUserConfirmChange = (previousQuote: BridgeQuote) => { | ||
| if (!hasQuoteOutputChanged && !hasUserConfirmedChange) { | ||
| quoteRef.current = previousQuote | ||
| setHasQuoteOutputChanged(true) | ||
| } | ||
| setHasUserConfirmedChange(false) | ||
| } | ||
|
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| const resetConfirm = () => { | ||
| if (hasUserConfirmedChange) { | ||
| quoteRef.current = null | ||
| setHasQuoteOutputChanged(false) | ||
| setHasUserConfirmedChange(false) | ||
| } | ||
| } | ||
|
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| const onUserAcceptChange = () => { | ||
| quoteRef.current = null | ||
| setHasUserConfirmedChange(true) | ||
| } | ||
|
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| return { | ||
| hasSameSelectionsAsPreviousQuote, | ||
| hasQuoteOutputChanged, | ||
| hasUserConfirmedChange, | ||
| onUserAcceptChange, | ||
| } | ||
| } | ||
|
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| const calculateOutputRelativeDifference = ( | ||
| quoteA?: BridgeQuote, | ||
| quoteB?: BridgeQuote | ||
| ) => { | ||
| if (!quoteA?.outputAmountString || !quoteB?.outputAmountString) return null | ||
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| const outputA = parseFloat(quoteA.outputAmountString) | ||
| const outputB = parseFloat(quoteB.outputAmountString) | ||
|
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| return Math.abs(outputA - outputB) / outputB | ||
| } |
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25 changes: 25 additions & 0 deletions
25
packages/synapse-interface/store/middleware/bridgeQuoteHistoryMiddleware.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| import { | ||
| Middleware, | ||
| MiddlewareAPI, | ||
| Dispatch, | ||
| AnyAction, | ||
| } from '@reduxjs/toolkit' | ||
|
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| export const bridgeQuoteHistoryMiddleware: Middleware = | ||
| (store: MiddlewareAPI) => (next: Dispatch) => (action: AnyAction) => { | ||
| const previousState = store.getState() | ||
| const result = next(action) | ||
| const currentState = store.getState() | ||
|
|
||
| if ( | ||
| previousState.bridgeQuote.bridgeQuote !== | ||
| currentState.bridgeQuote.bridgeQuote | ||
| ) { | ||
| store.dispatch({ | ||
| type: 'bridgeQuote/setPreviousBridgeQuote', | ||
| payload: previousState.bridgeQuote.bridgeQuote, | ||
| }) | ||
| } | ||
|
|
||
| return result | ||
| } |
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