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Updated on 2026-08-14

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Tangem 2023-03-20 12:35:36 +03:00
parent a30e44b1cf
commit 0907ba002c
23 changed files with 217 additions and 65 deletions
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160
app/src/main/java/com/tangem/tap/proxy/TransactionManagerImpl.kt
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@ -4,6 +4,7 @@ import com.google.firebase.crashlytics.FirebaseCrashlytics
import com.tangem.Message
import com.tangem.blockchain.blockchains.ethereum.EthereumTransactionExtras
import com.tangem.blockchain.blockchains.ethereum.EthereumWalletManager
import com.tangem.blockchain.blockchains.optimism.OptimismWalletManager
import com.tangem.blockchain.common.Amount
import com.tangem.blockchain.common.Blockchain
import com.tangem.blockchain.common.BlockchainSdkError
@ -155,56 +156,31 @@ class TransactionManagerImpl(
val blockchain = requireNotNull(Blockchain.fromNetworkId(networkId)) { "blockchain not found" }
val walletManager = getActualWalletManager(blockchain, derivationPath)
if (walletManager is EthereumWalletManager) {
val gasLimit = getGasLimit(
evmWalletManager = walletManager,
if (walletManager is OptimismWalletManager) {
return getFeeForOptimismBlockchain(
walletManager = walletManager,
amount = createAmount(amountToSend, currencyToSend, blockchain),
destinationAddress = destinationAddress,
data = data,
)
}
return getFeeForEthereumBlockchain(
walletManager = walletManager,
blockchain = blockchain,
amount = amountToSend,
amountToSend = amountToSend,
currency = currencyToSend,
destinationAddress = destinationAddress,
data = data,
).let {
if (increaseBy != null && increaseBy != 0) {
it.multiply(increaseBy.toBigInteger()).divide(BigInteger("100"))
} else {
it
}
}
return when (val gasPrice = walletManager.getGasPrice()) {
is Result.Success -> {
val fee = gasLimit.multiply(gasPrice.data).toBigDecimal(
scale = blockchain.decimals(),
mathContext = MathContext(blockchain.decimals(), RoundingMode.HALF_EVEN),
)
ProxyFee(
gasLimit = gasLimit,
fee = ProxyAmount(
currencySymbol = blockchain.currency,
value = fee,
decimals = blockchain.decimals(),
),
)
}
is Result.Failure -> {
error(gasPrice.error.message ?: gasPrice.error.customMessage)
}
}
increaseBy = increaseBy,
)
} else {
val fee = (walletManager as? TransactionSender)?.getFee(
amount = createAmount(amountToSend, currencyToSend, blockchain),
destination = destinationAddress,
) ?: error("Cannot cast to TransactionSender")
when (fee) {
is Result.Success -> {
// for not EVM blockchains set gasLimit ZERO for now
return ProxyFee(
gasLimit = BigInteger.ZERO,
fee = convertToProxyAmount(fee.data.firstOrNull() ?: error("no fee found")),
)
}
is Result.Failure -> {
error(fee.error.message ?: fee.error.customMessage)
}
}
return getFeeForBlockchain(
walletManager = walletManager,
amountToSend = amountToSend,
currency = currencyToSend,
blockchain = blockchain,
destinationAddress = destinationAddress,
)
}
}
@ -217,6 +193,100 @@ class TransactionManagerImpl(
)
}
private suspend fun getFeeForBlockchain(
walletManager: WalletManager,
amountToSend: BigDecimal,
currency: Currency,
blockchain: Blockchain,
destinationAddress: String,
): ProxyFee {
val fee = (walletManager as? TransactionSender)?.getFee(
amount = createAmount(amountToSend, currency, blockchain),
destination = destinationAddress,
) ?: error("Cannot cast to TransactionSender")
return when (fee) {
is Result.Success -> {
// for not EVM blockchains set gasLimit ZERO for now
ProxyFee(
gasLimit = BigInteger.ZERO,
fee = convertToProxyAmount(fee.data.firstOrNull() ?: error("no fee found")),
)
}
is Result.Failure -> {
error(fee.error.message ?: fee.error.customMessage)
}
}
}
@Suppress("LongParameterList")
private suspend fun getFeeForEthereumBlockchain(
walletManager: EthereumWalletManager,
blockchain: Blockchain,
amountToSend: BigDecimal,
currency: Currency,
destinationAddress: String,
data: String?,
increaseBy: Int?,
): ProxyFee {
val gasLimit = getGasLimit(
evmWalletManager = walletManager,
blockchain = blockchain,
amount = amountToSend,
currency = currency,
destinationAddress = destinationAddress,
data = data,
).let {
if (increaseBy != null && increaseBy != 0) {
it.multiply(increaseBy.toBigInteger()).divide(BigInteger("100"))
} else {
it
}
}
return when (val gasPrice = walletManager.getGasPrice()) {
is Result.Success -> {
val fee = gasLimit.multiply(gasPrice.data).toBigDecimal(
scale = blockchain.decimals(),
mathContext = MathContext(blockchain.decimals(), RoundingMode.HALF_EVEN),
)
ProxyFee(
gasLimit = gasLimit,
fee = ProxyAmount(
currencySymbol = blockchain.currency,
value = fee,
decimals = blockchain.decimals(),
),
)
}
is Result.Failure -> {
error(gasPrice.error.message ?: gasPrice.error.customMessage)
}
}
}
private suspend fun getFeeForOptimismBlockchain(
walletManager: OptimismWalletManager,
amount: Amount,
destinationAddress: String,
data: String?,
): ProxyFee {
val fee = if (data.isNullOrEmpty()) {
walletManager.getFee(amount, destinationAddress)
} else {
walletManager.getFee(amount, destinationAddress, data)
}
when (fee) {
is Result.Success -> {
return ProxyFee(
gasLimit = walletManager.gasLimit ?: BigInteger.ZERO,
fee = convertToProxyAmount(fee.data.lastOrNull() ?: error("no fee found")),
)
}
is Result.Failure -> {
error(fee.error.message ?: fee.error.customMessage)
}
}
}
@Suppress("LongParameterList")
private suspend fun getGasLimit(
evmWalletManager: EthereumWalletManager,