69 lines
No EOL
2.3 KiB
Kotlin
69 lines
No EOL
2.3 KiB
Kotlin
package com.tangem.tap.domain
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import com.tangem.Message
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import com.tangem.TangemSdk
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import com.tangem.blockchain.common.TransactionSigner
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import com.tangem.blockchain.common.Wallet
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import com.tangem.common.CompletionResult
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import com.tangem.common.card.Card
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import com.tangem.tap.domain.tasks.SignHashesTask
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import kotlin.coroutines.resume
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import kotlin.coroutines.suspendCoroutine
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class TangemSigner(
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private val card: Card,
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private val tangemSdk: TangemSdk,
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private val initialMessage: Message,
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private val signerCallback: (TangemSignerResponse) -> Unit,
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) : TransactionSigner {
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override suspend fun sign(
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hashes: List<ByteArray>,
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publicKey: Wallet.PublicKey
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): CompletionResult<List<ByteArray>> {
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return suspendCoroutine { continuation ->
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val cardId = if (card.backupStatus?.isActive == true) null else card.cardId
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val task = SignHashesTask(hashes, publicKey)
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tangemSdk.startSessionWithRunnable(
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runnable = task,
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cardId = cardId,
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initialMessage = initialMessage,
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) { result ->
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when (result) {
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is CompletionResult.Success -> {
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signerCallback(
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TangemSignerResponse(
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result.data.totalSignedHashes,
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result.data.remainingSignatures
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)
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)
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continuation.resume(CompletionResult.Success(result.data.signatures))
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}
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is CompletionResult.Failure ->
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continuation.resume(CompletionResult.Failure(result.error))
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}
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}
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}
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}
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override suspend fun sign(
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hash: ByteArray,
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publicKey: Wallet.PublicKey
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): CompletionResult<ByteArray> {
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val result = sign(
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hashes = listOf(hash),
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publicKey = publicKey
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)
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return when (result) {
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is CompletionResult.Success -> CompletionResult.Success(result.data.first())
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is CompletionResult.Failure -> CompletionResult.Failure(result.error)
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}
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}
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}
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data class TangemSignerResponse(
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val totalSignedHashes: Int?,
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val remainingSignatures: Int?,
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) |