81 lines
3.1 KiB
Kotlin
81 lines
3.1 KiB
Kotlin
import java.util.Optional
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import kotlin.ExperimentalUnsignedTypes
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import uniffi.bdk.*
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class LogProgress : BdkProgress {
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override fun update(progress: Float, message: String?) {
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println("Syncing..")
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}
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}
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class NullProgress : BdkProgress {
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override fun update(progress: Float, message: String?) {}
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}
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fun getTransaction(wallet: OnlineWalletInterface, transactionId: String): Optional<Transaction> {
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wallet.sync(NullProgress(), null)
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return wallet.getTransactions()
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.stream()
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.filter({
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when (it) {
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is Transaction.Confirmed -> it.details.id.equals(transactionId)
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is Transaction.Unconfirmed -> it.details.id.equals(transactionId)
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}
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})
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.findFirst()
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}
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@ExperimentalUnsignedTypes
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val unconfirmedFirstThenByTimestampDescending =
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Comparator<Transaction> { a, b ->
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when {
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(a is Transaction.Confirmed && b is Transaction.Confirmed) -> {
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val comparison = b.confirmation.timestamp.compareTo(a.confirmation.timestamp)
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when {
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comparison == 0 -> b.details.id.compareTo(a.details.id)
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else -> comparison
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}
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}
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(a is Transaction.Confirmed && b is Transaction.Unconfirmed) -> 1
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(a is Transaction.Unconfirmed && b is Transaction.Confirmed) -> -1
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else -> 0
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}
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}
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@ExperimentalUnsignedTypes
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fun main(args: Array<String>) {
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println("Configuring an in-memory wallet on electrum..")
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val descriptor = "pkh(cSQPHDBwXGjVzWRqAHm6zfvQhaTuj1f2bFH58h55ghbjtFwvmeXR)"
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val amount = 1000uL
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val recipient = "tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt"
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val db = DatabaseConfig.Memory("")
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val client =
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BlockchainConfig.Electrum(
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ElectrumConfig("ssl://electrum.blockstream.info:60002", null, 5u, null, 10u)
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)
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val wallet = OnlineWallet(descriptor, Network.TESTNET, db, client)
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wallet.sync(LogProgress(), null)
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println("Initial wallet balance: ${wallet.getBalance()}")
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println("Please send $amount satoshis to address: ${wallet.getNewAddress()}")
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readLine()
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wallet.sync(LogProgress(), null)
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println("New wallet balance: ${wallet.getBalance()}")
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println("Press Enter to return funds")
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readLine()
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println("Creating a PSBT with recipient $recipient and amount $amount satoshis...")
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val transaction = PartiallySignedBitcoinTransaction(wallet, recipient, amount)
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println("Signing the transaction...")
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wallet.sign(transaction)
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println("Broadcasting the signed transaction...")
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val transactionId = wallet.broadcast(transaction)
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println("Broadcasted transaction with id $transactionId")
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val take = 5
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println("Listing latest $take transactions...")
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wallet
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.getTransactions()
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.sortedWith(unconfirmedFirstThenByTimestampDescending)
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.take(take)
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.forEach { println(it) }
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println("Final wallet balance: ${wallet.getBalance()}")
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}
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