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Updated on 2026-08-14

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This commit is contained in:
Tangem 2020-04-19 21:09:45 +03:00
parent cfaea982bc
commit 17174cbde8
6 changed files with 30 additions and 23 deletions
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3
blockchain/src/main/java/com/tangem/blockchain/bitcoin/BitcoinTransactionBuilder.kt
View file

@ -2,6 +2,7 @@ package com.tangem.blockchain.bitcoin
import com.tangem.blockchain.common.TransactionData
import com.tangem.blockchain.common.extensions.Result
import com.tangem.blockchain.common.extensions.isZero
import org.bitcoinj.core.*
import org.bitcoinj.crypto.TransactionSignature
import org.bitcoinj.script.Script
@ -81,7 +82,7 @@ internal fun TransactionData.toBitcoinJTransaction(networkParameters: NetworkPar
transaction.addOutput(
Coin.parseCoin(this.amount.value!!.toPlainString()),
Address.fromString(networkParameters, this.destinationAddress))
if (change != 0.toBigDecimal()) {
if (!change.isZero()) {
transaction.addOutput(
Coin.parseCoin(change.toPlainString()),
Address.fromString(networkParameters,

7
blockchain/src/main/java/com/tangem/blockchain/bitcoin/BitcoinWalletManager.kt
View file

@ -3,7 +3,6 @@ package com.tangem.blockchain.bitcoin
import android.util.Log
import com.tangem.blockchain.bitcoin.network.BitcoinAddressResponse
import com.tangem.blockchain.bitcoin.network.BitcoinNetworkManager
import com.tangem.blockchain.bitcoin.network.BitcoinNetworkManager.Companion.SATOSHI_IN_BTC
import com.tangem.blockchain.common.*
import com.tangem.blockchain.common.extensions.Result
import com.tangem.blockchain.common.extensions.SimpleResult
@ -27,7 +26,7 @@ class BitcoinWalletManager(
private val networkManager = BitcoinNetworkManager(isTestNet)
init {
wallet.balances[AmountType.Coin] = Amount(null, blockchain)
wallet.balances[AmountType.Coin] = Amount(null, blockchain, address)
}
override suspend fun update() {
@ -80,9 +79,11 @@ class BitcoinWalletManager(
when (val result = networkManager.getFee()) {
is Result.Failure -> return result
is Result.Success -> {
val feeValue = BigDecimal.ONE.movePointLeft(blockchain.decimals.toInt())
amount.value = amount.value!! - feeValue
val sizeResult = transactionBuilder.getEstimateSize(
TransactionData(amount,
Amount(1.toBigDecimal().divide(SATOSHI_IN_BTC), blockchain),
Amount(feeValue, blockchain),
address, destination),
walletPublicKey
)

4
blockchain/src/main/java/com/tangem/blockchain/bitcoin/network/BitcoinNetworkManager.kt
View file

@ -85,10 +85,6 @@ class BitcoinNetworkManager(private val isTestNet: Boolean) : BitcoinProvider {
}
}
}
companion object {
val SATOSHI_IN_BTC = 100000000.toBigDecimal()
}
}
data class BitcoinAddressResponse(

7
blockchain/src/main/java/com/tangem/blockchain/bitcoin/network/BlockchainInfoProvider.kt
View file

@ -1,9 +1,9 @@
package com.tangem.blockchain.bitcoin.network
import com.tangem.blockchain.bitcoin.UnspentTransaction
import com.tangem.blockchain.bitcoin.network.BitcoinNetworkManager.Companion.SATOSHI_IN_BTC
import com.tangem.blockchain.bitcoin.network.api.BlockchainInfoApi
import com.tangem.blockchain.bitcoin.network.api.EstimatefeeApi
import com.tangem.blockchain.common.Blockchain
import com.tangem.blockchain.common.extensions.Result
import com.tangem.blockchain.common.extensions.SimpleResult
import com.tangem.blockchain.common.extensions.retryIO
@ -16,6 +16,7 @@ class BlockchainInfoProvider(
private val blockchainApi: BlockchainInfoApi,
private val estimatefeeApi: EstimatefeeApi
) : BitcoinProvider {
val decimals = Blockchain.Bitcoin.decimals.toInt()
override suspend fun getInfo(address: String): Result<BitcoinAddressResponse> {
return try {
@ -29,7 +30,7 @@ class BlockchainInfoProvider(
val bitcoinUnspents = unspents.unspentOutputs.map {
UnspentTransaction(
it.amount!!.toBigDecimal().divide(SATOSHI_IN_BTC),
it.amount!!.toBigDecimal().movePointLeft(decimals),
it.outputIndex!!.toLong(),
it.hash!!.hexToBytes(),
it.outputScript!!.hexToBytes())
@ -37,7 +38,7 @@ class BlockchainInfoProvider(
Result.Success(
BitcoinAddressResponse(
addressData.finalBalance?.toBigDecimal()?.divide(SATOSHI_IN_BTC)
addressData.finalBalance?.toBigDecimal()?.movePointLeft(decimals)
?: 0.toBigDecimal(), unconfirmedTransactions, bitcoinUnspents))
}
} catch (exception: Exception) {

25
blockchain/src/main/java/com/tangem/blockchain/bitcoin/network/BlockcypherProvider.kt
View file

@ -1,11 +1,11 @@
package com.tangem.blockchain.bitcoin.network
import com.tangem.blockchain.bitcoin.UnspentTransaction
import com.tangem.blockchain.bitcoin.network.BitcoinNetworkManager.Companion.SATOSHI_IN_BTC
import com.tangem.blockchain.bitcoin.network.api.BlockcypherApi
import com.tangem.blockchain.bitcoin.network.api.BlockcypherBody
import com.tangem.blockchain.bitcoin.network.response.BlockcypherFee
import com.tangem.blockchain.bitcoin.network.response.BlockcypherResponse
import com.tangem.blockchain.common.Blockchain
import com.tangem.blockchain.common.extensions.Result
import com.tangem.blockchain.common.extensions.SimpleResult
import com.tangem.blockchain.common.extensions.retryIO
@ -14,6 +14,7 @@ import com.tangem.common.extensions.hexToBytes
class BlockcypherProvider(private val api: BlockcypherApi, isTestNet: Boolean) : BitcoinProvider {
private val blockchain = "btc"
private val decimals = Blockchain.Bitcoin.decimals.toInt()
private val network = if (isTestNet) {
BlockcypherNetwork.Test.network
@ -26,14 +27,14 @@ class BlockcypherProvider(private val api: BlockcypherApi, isTestNet: Boolean) :
val addressData: BlockcypherResponse = retryIO { api.getAddressData(blockchain, network, address) }
val unspents = addressData.txrefs?.map {
UnspentTransaction(
it.amount!!.toBigDecimal().divide(SATOSHI_IN_BTC),
it.amount!!.toBigDecimal().movePointLeft(decimals),
it.outputIndex!!.toLong(),
it.hash!!.hexToBytes(),
it.outputScript!!.hexToBytes()
)
}
return Result.Success(BitcoinAddressResponse(
addressData.balance!!.toBigDecimal().divide(SATOSHI_IN_BTC),
addressData.balance!!.toBigDecimal().movePointLeft(decimals),
addressData.unconfirmedBalance != 0L,
unspents))
@ -43,27 +44,27 @@ class BlockcypherProvider(private val api: BlockcypherApi, isTestNet: Boolean) :
}
override suspend fun getFee(): Result<BitcoinFee> {
try {
return try {
val receivedFee: BlockcypherFee = retryIO { api.getFee(blockchain, network) }
return Result.Success(
BitcoinFee(receivedFee.minFeePerKb!!.toBigDecimal().divide(SATOSHI_IN_BTC),
receivedFee.normalFeePerKb!!.toBigDecimal().divide(SATOSHI_IN_BTC),
receivedFee.priorityFeePerKb!!.toBigDecimal().divide(SATOSHI_IN_BTC))
Result.Success(
BitcoinFee(receivedFee.minFeePerKb!!.toBigDecimal().movePointLeft(decimals),
receivedFee.normalFeePerKb!!.toBigDecimal().movePointLeft(decimals),
receivedFee.priorityFeePerKb!!.toBigDecimal().movePointLeft(decimals))
)
} catch (error: Exception) {
return Result.Failure(error)
Result.Failure(error)
}
}
override suspend fun sendTransaction(transaction: String): SimpleResult {
try {
return try {
retryIO {
api.sendTransaction(
blockchain, network, BlockcypherBody(transaction), BlockcypherToken.getToken())
}
return SimpleResult.Success
SimpleResult.Success
} catch (error: Exception) {
return SimpleResult.Failure(error)
SimpleResult.Failure(error)
}
}
}

7
blockchain/src/main/java/com/tangem/blockchain/common/extensions/BigDecimal.kt Normal file
View file

@ -0,0 +1,7 @@
package com.tangem.blockchain.common.extensions
import java.math.BigDecimal
fun BigDecimal.isZero() : Boolean {
return this.compareTo(BigDecimal.ZERO) == 0
}