IOS-7533 Tron Staking

BlockchainSdk/Blockchains/Tron/TronStakeKitTransactionHelper.swift

@@ -0,0 +1,17 @@
+//
+//  TronStakeKitTransactionHelper.swift
+//  BlockchainSdk
+//
+//  Created by Alexander Osokin on 16.08.2024.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+struct TronStakeKitTransactionHelper {
+    func prepareForSign(_ unsignedData: String) throws -> TronPresignedInput {
+        let rawData = try Protocol_Transaction.raw(serializedData: Data(hex: unsignedData))
+        let hash = try rawData.serializedData().sha256()
+        return .init(rawData: rawData, hash: hash)
+    }
+}

BlockchainSdk/Blockchains/Tron/TronWalletManager.swift

@@ -259,3 +259,41 @@ extension TronWalletManager: TronTransactionDataBuilder {
     }
 }
 
+// MARK: - StakeKitTransactionSender
+
+extension TronWalletManager: StakeKitTransactionSender {
+    func sendStakeKit(transaction: StakeKitTransaction, signer: any TransactionSigner) -> AnyPublisher<TransactionSendResult, SendTxError> {
+        Result {
+            try TronStakeKitTransactionHelper().prepareForSign(transaction.unsignedData)
+        }
+        .publisher
+        .withWeakCaptureOf(self)
+        .flatMap { manager, input in
+            signer
+                .sign(hash: input.hash, walletPublicKey: manager.wallet.publicKey)
+                .tryMap { signature in
+                    try manager.txBuilder.buildForSend(rawData: input.rawData, signature: signature)
+                }
+        }
+        .withWeakCaptureOf(self)
+        .flatMap { manager, data in
+            manager.networkService
+                .broadcastHex(data)
+                .mapSendError(tx: data.hexString)
+        }
+        .withWeakCaptureOf(self)
+        .tryMap { manager, broadcastResponse in
+            guard broadcastResponse.result == true else {
+                throw WalletError.failedToSendTx
+            }
+
+            let hash = broadcastResponse.txid
+            let mapper = PendingTransactionRecordMapper()
+            let record = mapper.mapToPendingTransactionRecord(stakeKitTransaction: transaction, hash: hash)
+            manager.wallet.addPendingTransaction(record)
+            return TransactionSendResult(hash: hash)
+        }
+        .eraseSendError()
+        .eraseToAnyPublisher()
+    }
+}