174 lines
5.8 KiB
Swift
174 lines
5.8 KiB
Swift
//
|
|
// WalletTransactionEncoder.swift
|
|
// ZcashLightClientKit
|
|
//
|
|
// Created by Francisco Gindre on 11/20/19.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
class WalletTransactionEncoder: TransactionEncoder {
|
|
var rustBackend: ZcashRustBackendWelding.Type
|
|
var repository: TransactionRepository
|
|
|
|
private var outputParamsURL: URL
|
|
private var spendParamsURL: URL
|
|
private var dataDbURL: URL
|
|
private var cacheDbURL: URL
|
|
private var networkType: NetworkType
|
|
|
|
init(
|
|
rust: ZcashRustBackendWelding.Type,
|
|
dataDb: URL,
|
|
cacheDb: URL,
|
|
repository: TransactionRepository,
|
|
outputParams: URL,
|
|
spendParams: URL,
|
|
networkType: NetworkType
|
|
) {
|
|
self.rustBackend = rust
|
|
self.dataDbURL = dataDb
|
|
self.cacheDbURL = cacheDb
|
|
self.repository = repository
|
|
self.outputParamsURL = outputParams
|
|
self.spendParamsURL = spendParams
|
|
self.networkType = networkType
|
|
}
|
|
|
|
convenience init(initializer: Initializer) {
|
|
self.init(
|
|
rust: initializer.rustBackend,
|
|
dataDb: initializer.dataDbURL,
|
|
cacheDb: initializer.cacheDbURL,
|
|
repository: initializer.transactionRepository,
|
|
outputParams: initializer.outputParamsURL,
|
|
spendParams: initializer.spendParamsURL,
|
|
networkType: initializer.network.networkType
|
|
)
|
|
}
|
|
|
|
func createTransaction(
|
|
spendingKey: String,
|
|
zatoshi: Int,
|
|
to address: String,
|
|
memo: String?,
|
|
from accountIndex: Int
|
|
) async throws -> EncodedTransaction {
|
|
let txId = try createSpend(
|
|
spendingKey: spendingKey,
|
|
zatoshi: zatoshi,
|
|
to: address,
|
|
memo: memo,
|
|
from: accountIndex
|
|
)
|
|
|
|
do {
|
|
let transactionEntity = try repository.findBy(id: txId)
|
|
guard let transaction = transactionEntity else {
|
|
throw TransactionEncoderError.notFound(transactionId: txId)
|
|
}
|
|
|
|
LoggerProxy.debug("sentTransaction id: \(txId)")
|
|
|
|
return EncodedTransaction(transactionId: transaction.transactionId, raw: transaction.raw)
|
|
} catch {
|
|
throw TransactionEncoderError.notFound(transactionId: txId)
|
|
}
|
|
}
|
|
|
|
func createSpend(spendingKey: String, zatoshi: Int, to address: String, memo: String?, from accountIndex: Int) throws -> Int {
|
|
guard ensureParams(spend: self.spendParamsURL, output: self.spendParamsURL) else {
|
|
throw TransactionEncoderError.missingParams
|
|
}
|
|
|
|
let txId = rustBackend.createToAddress(
|
|
dbData: self.dataDbURL,
|
|
account: Int32(accountIndex),
|
|
extsk: spendingKey,
|
|
to: address,
|
|
value: Int64(zatoshi),
|
|
memo: memo,
|
|
spendParamsPath: self.spendParamsURL.path,
|
|
outputParamsPath: self.outputParamsURL.path,
|
|
networkType: networkType
|
|
)
|
|
|
|
guard txId > 0 else {
|
|
throw rustBackend.lastError() ?? RustWeldingError.genericError(message: "create spend failed")
|
|
}
|
|
|
|
return Int(txId)
|
|
}
|
|
|
|
func createShieldingTransaction(
|
|
spendingKey: String,
|
|
tSecretKey: String,
|
|
memo: String?,
|
|
from accountIndex: Int
|
|
) async throws -> EncodedTransaction {
|
|
let txId = try createShieldingSpend(
|
|
spendingKey: spendingKey,
|
|
tsk: tSecretKey,
|
|
memo: memo,
|
|
accountIndex: accountIndex
|
|
)
|
|
|
|
do {
|
|
let transactionEntity = try repository.findBy(id: txId)
|
|
|
|
guard let transaction = transactionEntity else {
|
|
throw TransactionEncoderError.notFound(transactionId: txId)
|
|
}
|
|
|
|
LoggerProxy.debug("sentTransaction id: \(txId)")
|
|
return EncodedTransaction(transactionId: transaction.transactionId, raw: transaction.raw)
|
|
} catch {
|
|
throw TransactionEncoderError.notFound(transactionId: txId)
|
|
}
|
|
}
|
|
|
|
func createShieldingSpend(spendingKey: String, tsk: String, memo: String?, accountIndex: Int) throws -> Int {
|
|
guard ensureParams(spend: self.spendParamsURL, output: self.spendParamsURL) else {
|
|
throw TransactionEncoderError.missingParams
|
|
}
|
|
|
|
let txId = rustBackend.shieldFunds(
|
|
dbCache: self.cacheDbURL,
|
|
dbData: self.dataDbURL,
|
|
account: Int32(accountIndex),
|
|
tsk: tsk,
|
|
extsk: spendingKey,
|
|
memo: memo,
|
|
spendParamsPath: self.spendParamsURL.path,
|
|
outputParamsPath: self.outputParamsURL.path,
|
|
networkType: networkType
|
|
)
|
|
|
|
guard txId > 0 else {
|
|
throw rustBackend.lastError() ?? RustWeldingError.genericError(message: "create spend failed")
|
|
}
|
|
|
|
return Int(txId)
|
|
}
|
|
|
|
func ensureParams(spend: URL, output: URL) -> Bool {
|
|
let readableSpend = FileManager.default.isReadableFile(atPath: spend.path)
|
|
let readableOutput = FileManager.default.isReadableFile(atPath: output.path)
|
|
|
|
return readableSpend && readableOutput // Todo: change this to something that makes sense
|
|
}
|
|
|
|
/**
|
|
Fetch the Transaction Entity from the encoded representation
|
|
- Parameter encodedTransaction: The encoded transaction to expand
|
|
- Returns: a TransactionEntity based on the given Encoded Transaction
|
|
- Throws: a TransactionEncoderError
|
|
*/
|
|
func expandEncodedTransaction(_ encodedTransaction: EncodedTransaction) throws -> TransactionEntity {
|
|
guard let transaction = try? repository.findBy(rawId: encodedTransaction.transactionId) else {
|
|
throw TransactionEncoderError.couldNotExpand(txId: encodedTransaction.transactionId)
|
|
}
|
|
return transaction
|
|
}
|
|
}
|