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Updated on 2026-08-14

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This commit is contained in:
Tangem 2023-04-20 15:04:20 +03:00
parent f58f67b7ff
commit ee21ead663
1 changed files with 40 additions and 7 deletions
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47
app/src/main/java/com/tangem/tap/domain/walletconnect/WalletConnectSdkHelper.kt
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@ -63,26 +63,24 @@ class WalletConnectSdkHelper {
val wallet = walletManager.wallet
val balance = wallet.amounts[AmountType.Coin]?.value ?: return null
val gas = transaction.gas?.hexToBigDecimal()
?: transaction.gasLimit?.hexToBigDecimal()
?: BigDecimal(300000) // Set high gasLimit if not provided
val decimals = wallet.blockchain.decimals()
val value = (transaction.value ?: "0").hexToBigDecimal()
?.movePointLeft(decimals) ?: return null
val gasLimit = getGasLimitFromTx(value, walletManager, transaction)
val gasPrice = transaction.gasPrice?.hexToBigDecimal()
?: when (val result = (walletManager as? EthereumGasLoader)?.getGasPrice()) {
is Result.Success -> result.data.toBigDecimal()
is Result.Failure -> {
(result.error as? Throwable)?.let { Timber.e(it) }
(result.error as? Throwable)?.let { Timber.e(it, "getGasPrice failed") }
return null
}
null -> return null
}
val fee = (gas * gasPrice).movePointLeft(decimals)
val fee = (gasLimit * gasPrice).movePointLeft(decimals)
val total = value + fee
val transactionData = TransactionData(
@ -92,7 +90,7 @@ class WalletConnectSdkHelper {
destinationAddress = transaction.to!!,
extras = EthereumTransactionExtras(
data = transaction.data.removePrefix(HEX_PREFIX).hexToBytes(),
gasLimit = gas.toBigInteger(),
gasLimit = gasLimit.toBigInteger(),
nonce = transaction.nonce?.hexToBigDecimal()?.toBigInteger(),
),
)
@ -139,6 +137,40 @@ class WalletConnectSdkHelper {
}
}
private suspend fun getGasLimitFromTx(
value: BigDecimal,
walletManager: WalletManager,
transaction: WCEthereumTransaction,
): BigDecimal {
return transaction.gas?.hexToBigDecimal()
?: transaction.gasLimit?.hexToBigDecimal()
?: getGaLimitFromBlockchain(
value = value,
walletManager = walletManager,
transaction = transaction,
)
}
private suspend fun getGaLimitFromBlockchain(
value: BigDecimal,
walletManager: WalletManager,
transaction: WCEthereumTransaction,
): BigDecimal {
val gasLimitResult = (walletManager as? EthereumGasLoader)?.getGasLimit(
amount = Amount(value, walletManager.wallet.blockchain),
destination = transaction.to ?: "",
data = transaction.data,
)
return when (gasLimitResult) {
is Result.Success -> gasLimitResult.data.toBigDecimal().multiply(BigDecimal("1.2"))
is Result.Failure -> {
(gasLimitResult.error as? Throwable)?.let { Timber.e(it, "getGasLimit failed") }
BigDecimal(DEFAULT_MAX_GASLIMIT) // Set high gasLimit if not provided
}
else -> BigDecimal(DEFAULT_MAX_GASLIMIT) // Set high gasLimit if not provided
}
}
private suspend fun sendTransaction(data: WcTransactionData, cardId: String?): String? {
val result = (data.walletManager as TransactionSender).send(
transactionData = data.transaction,
@ -290,6 +322,7 @@ class WalletConnectSdkHelper {
companion object {
private const val ETH_MESSAGE_PREFIX = "\u0019Ethereum Signed Message:\n"
private const val HEX_PREFIX = "0x"
private const val DEFAULT_MAX_GASLIMIT = 350000
fun getBnbResultString(publicKey: String, signature: String): String {
return "{\"signature\":\"$signature\",\"publicKey\":\"$publicKey\"}"
}