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Updated on 2026-08-14

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Tangem 2025-08-14 16:31:49 +05:00
parent b58df2dfb7
commit e3a7ba0a77
8 changed files with 122 additions and 8 deletions
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14
domain/transaction/src/main/java/com/tangem/domain/transaction/TransactionRepository.kt
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@ -109,4 +109,18 @@ interface TransactionRepository {
userWalletId: UserWalletId,
network: Network,
): com.tangem.blockchain.extensions.Result<List<ByteArray>>
suspend fun prepareAndSign(
transactionData: TransactionData,
signer: TransactionSigner,
userWalletId: UserWalletId,
network: Network,
): com.tangem.blockchain.extensions.Result<ByteArray>
suspend fun prepareAndSignMultiple(
transactionData: List<TransactionData>,
signer: TransactionSigner,
userWalletId: UserWalletId,
network: Network,
): com.tangem.blockchain.extensions.Result<List<ByteArray>>
}

70
domain/transaction/src/main/java/com/tangem/domain/transaction/usecase/PrepareAndSignUseCase.kt Normal file
View file

@ -0,0 +1,70 @@
package com.tangem.domain.transaction.usecase
import arrow.core.Either
import arrow.core.left
import arrow.core.right
import com.tangem.blockchain.common.TransactionData
import com.tangem.blockchain.common.TransactionSigner
import com.tangem.blockchain.extensions.Result
import com.tangem.domain.card.common.TapWorkarounds.isTangemTwins
import com.tangem.domain.card.models.TwinKey
import com.tangem.domain.card.repository.CardSdkConfigRepository
import com.tangem.domain.models.network.Network
import com.tangem.domain.models.wallet.UserWallet
import com.tangem.domain.models.wallet.requireColdWallet
import com.tangem.domain.transaction.TransactionRepository
import com.tangem.domain.transaction.error.SendTransactionError
class PrepareAndSignUseCase(
private val transactionRepository: TransactionRepository,
private val cardSdkConfigRepository: CardSdkConfigRepository,
) {
suspend operator fun invoke(
transactionData: TransactionData,
userWallet: UserWallet,
network: Network,
): Either<SendTransactionError, ByteArray> {
val signer = createSigner(userWallet)
val result = transactionRepository.prepareAndSign(
transactionData = transactionData,
userWalletId = userWallet.walletId,
network = network,
signer = signer,
)
return when (result) {
is Result.Failure -> SendTransactionUseCase.handleError(result).left()
is Result.Success -> result.data.right()
}
}
suspend operator fun invoke(
transactionData: List<TransactionData>,
userWallet: UserWallet,
network: Network,
): Either<SendTransactionError, List<ByteArray>> {
val signer = createSigner(userWallet)
val result = transactionRepository.prepareAndSignMultiple(
transactionData = transactionData,
userWalletId = userWallet.walletId,
network = network,
signer = signer,
)
return when (result) {
is Result.Failure -> SendTransactionUseCase.handleError(result).left()
is Result.Success -> result.data.right()
}
}
private fun createSigner(userWallet: UserWallet): TransactionSigner {
userWallet.requireColdWallet() // TODO [REDACTED_TASK_KEY]
val card = userWallet.scanResponse.card
val isCardNotBackedUp = card.backupStatus?.isActive != true && !card.isTangemTwins
val signer = cardSdkConfigRepository.getCommonSigner(
cardId = card.cardId.takeIf { isCardNotBackedUp },
twinKey = TwinKey.getOrNull(scanResponse = userWallet.scanResponse),
)
return signer
}
}