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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| import { useEffect, useState } from 'react'; | ||
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| import { bytesToHex } from '@stacks/common'; | ||
| import { StacksTransaction } from '@stacks/transactions'; | ||
| import axios from 'axios'; | ||
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| import { FeeTypes, type Fees } from '@leather.io/models'; | ||
| import { type NextNonce } from '@leather.io/query'; | ||
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| import { logger } from '@shared/logger'; | ||
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| import { generateUnsignedTransaction } from '@app/common/transactions/stacks/generate-unsigned-txs'; | ||
| import { useCurrentStacksAccountAddress } from '@app/store/accounts/blockchain/stacks/stacks-account.hooks'; | ||
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| interface TransactionBase { | ||
| options: any; | ||
| transaction: StacksTransaction | undefined; | ||
| } | ||
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| interface SbtcSponsorshipVerificationResult { | ||
| isVerifying: boolean; | ||
| result: SbtcSponsorshipEligibility | undefined; | ||
| } | ||
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| export interface SbtcSponsorshipEligibility { | ||
| isEligible: boolean; | ||
| unsignedSponsoredTx?: StacksTransaction; | ||
| } | ||
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| interface SbtcSponsorshipSubmissionResult { | ||
| txId?: string; | ||
| error?: string; | ||
| } | ||
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| export async function submitSponsoredSbtcTransaction( | ||
| sponsoredTx: StacksTransaction | ||
| ): Promise<SbtcSponsorshipSubmissionResult> { | ||
| logger.debug('Submitting Sponsored sBTC Transaction!'); | ||
| try { | ||
| const { data } = await axios.post('http://localhost:5001/submit', { | ||
| tx: bytesToHex(sponsoredTx.serialize()), | ||
| }); | ||
| logger.debug('sBTC Sponsorship Success:', data.txId); | ||
| return { | ||
| txId: data.txId, | ||
| }; | ||
| } catch (error: any) { | ||
| const errMsg = `sBTC Sponsorship Failure (${error?.response?.data?.error || 'Unknkown'})`; | ||
| return { | ||
| error: errMsg, | ||
| }; | ||
| } | ||
| } | ||
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| async function verifySponsoredSbtcTransaction( | ||
| baseTx: TransactionBase, | ||
| nextNonce: NextNonce, | ||
| stxFees: Fees | ||
| ): Promise<SbtcSponsorshipEligibility> { | ||
| logger.debug('Verifying Sponsored sBTC Transaction!'); | ||
| try { | ||
| // use the standard recommended fee | ||
| const standardFee = stxFees.estimates[FeeTypes.Middle].fee.amount.toNumber(); | ||
| // add sponsorship option | ||
| const { options } = baseTx as any; | ||
| options.txData.sponsored = true; | ||
| const sponsoredTx = await generateUnsignedTransaction({ | ||
| ...options, | ||
| fee: standardFee, | ||
| nonce: nextNonce?.nonce, | ||
| }); | ||
| const serializedTx = bytesToHex(sponsoredTx.serialize()); | ||
| logger.debug('Pre-serialization:', { | ||
| fee: sponsoredTx.auth.spendingCondition?.fee, | ||
| authType: sponsoredTx.auth.authType, | ||
| rawTx: serializedTx, | ||
| }); | ||
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| const { data } = await axios.post('http://localhost:5001/verify', { | ||
| tx: serializedTx, | ||
| }); | ||
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| logger.debug('Verification response:', data); | ||
| return { isEligible: true, unsignedSponsoredTx: sponsoredTx }; | ||
| } catch (error) { | ||
| logger.error('Transaction verification failed:', error); | ||
| return { isEligible: false }; | ||
| } | ||
| } | ||
|
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| export function useCheckSbtcSponsorshipEligible( | ||
| baseTx?: TransactionBase, | ||
| nextNonce?: any, | ||
| stxFees?: Fees | ||
| ): SbtcSponsorshipVerificationResult { | ||
| const [isLoading, setIsLoading] = useState(true); | ||
| const [result, setResult] = useState<SbtcSponsorshipEligibility | undefined>(); | ||
| const stxAddress = useCurrentStacksAccountAddress(); | ||
| const [lastAddressChecked, setLastAddressChecked] = useState<string | undefined>(); | ||
|
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| useEffect(() => { | ||
| if (!(baseTx && nextNonce && stxFees)) { | ||
| return; | ||
| } | ||
| if (result && stxAddress === lastAddressChecked) { | ||
| return; | ||
| } | ||
| verifySponsoredSbtcTransaction(baseTx, nextNonce, stxFees) | ||
| .then(result => { | ||
| setResult(result); | ||
| setLastAddressChecked(stxAddress); | ||
| }) | ||
| .catch(e => { | ||
| logger.error('Verification failure: ', e); | ||
| setResult({ isEligible: false }); | ||
| }) | ||
| .finally(() => { | ||
| setIsLoading(false); | ||
| }); | ||
| }, [baseTx, nextNonce, stxFees, result, stxAddress, lastAddressChecked]); | ||
|
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| return { | ||
| isVerifying: isLoading, | ||
| result, | ||
| }; | ||
| } |