33 lines
1.7 KiB
Kotlin
33 lines
1.7 KiB
Kotlin
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package cash.z.wallet.sdk.data
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import cash.z.wallet.sdk.secure.Wallet
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import kotlinx.coroutines.Dispatchers.IO
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import kotlinx.coroutines.withContext
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class WalletTransactionEncoder(
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private val wallet: Wallet,
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private val repository: TransactionRepository
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) : RawTransactionEncoder {
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/**
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* Creates a transaction, throwing an exception whenever things are missing. When the provided wallet implementation
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* doesn't throw an exception, we wrap the issue into a descriptive exception ourselves (rather than using
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* double-bangs for things).
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*/
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override suspend fun create(zatoshi: Long, toAddress: String, memo: String): EncodedTransaction = withContext(IO) {
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val transactionId = wallet.createRawSendTransaction(zatoshi, toAddress, memo)
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val transaction = repository.findTransactionById(transactionId)
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?: throw TransactionNotFoundException(transactionId)
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EncodedTransaction(transaction.transactionId, transaction.raw
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?: throw TransactionNotEncodedException(transactionId))
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}
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}
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class TransactionNotFoundException(transactionId: Long) : RuntimeException("Unable to find transactionId " +
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"$transactionId in the repository. This means the wallet created a transaction and then returned a row ID " +
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"that does not actually exist. This is a scenario where the wallet should have thrown an exception but failed " +
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"to do so.")
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class TransactionNotEncodedException(transactionId: Long) : RuntimeException("The transaction returned by the wallet," +
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" with id $transactionId, does not have any raw data. This is a scenario where the wallet should have thrown" +
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" an exception but failed to do so.")
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