IOS-7779 Add TransactionBuilder

BlockchainSdk/Blockchains/Filecoin/FilecoinFeeParameters.swift

@@ -0,0 +1,15 @@
+//
+//  FilecoinFeeParameters.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 30.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import BigInt
+
+struct FilecoinFeeParameters: FeeParameters {
+    let gasUnitPrice: BigUInt
+    let gasLimit: Int64
+    let gasPremium: BigUInt
+}

BlockchainSdk/Blockchains/Filecoin/FilecoinNetworkProvider.swift

@@ -0,0 +1,51 @@
+//
+//  FilecoinNetworkProvider.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Combine
+import Foundation
+
+final class FilecoinNetworkProvider: HostProvider {
+    var host: String {
+        node.url.absoluteString
+    }
+
+    private let node: NodeInfo
+    private let provider: NetworkProvider<FilecoinTarget>
+
+    init(
+        node: NodeInfo,
+        configuration: NetworkProviderConfiguration
+    ) {
+        self.node = node
+        provider = NetworkProvider<FilecoinTarget>(configuration: configuration)
+    }
+
+    func getActorInfo(address: String) -> AnyPublisher<FilecoinResponse.GetActorInfo, Error> {
+        requestPublisher(for: .getActorInfo(address: address))
+    }
+
+    func getGasUnitPrice(transactionInfo: FilecoinTxInfo) -> AnyPublisher<String, Error> {
+        requestPublisher(for: .getGasUnitPrice(transactionInfo: transactionInfo))
+    }
+
+    func getGasLimit(transactionInfo: FilecoinTxInfo) -> AnyPublisher<UInt64, Error> {
+        requestPublisher(for: .getGasLimit(transactionInfo: transactionInfo))
+    }
+
+    func submitTransaction(signedTransactionBody: FilecoinSignedTransactionBody) -> AnyPublisher<FilecoinResponse.SubmitTransaction, Error> {
+        requestPublisher(for: .submitTransaction(signedTransactionBody: signedTransactionBody))
+    }
+
+    private func requestPublisher<T: Decodable>(for target: FilecoinTarget.FilecoinTargetType) -> AnyPublisher<T, Error> {
+        provider.requestPublisher(FilecoinTarget(node: node, target))
+            .filterSuccessfulStatusAndRedirectCodes()
+            .map(JSONRPC.Response<T, JSONRPC.APIError>.self, using: .withSnakeCaseStrategy)
+            .tryMap { try $0.result.get() }
+            .eraseToAnyPublisher()
+    }
+}

BlockchainSdk/Blockchains/Filecoin/FilecoinTransactionBuilder.swift

@@ -0,0 +1,89 @@
+//
+//  FilecoinTransactionBuilder.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 29.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import TangemSdk
+import WalletCore
+
+final class FilecoinTransactionBuilder {
+    private let wallet: Wallet
+
+    init(wallet: Wallet) {
+        self.wallet = wallet
+    }
+
+    func buildForSign(transaction: Transaction, nonce: UInt64) throws -> Data {
+        guard let feeParameters = transaction.fee.parameters as? FilecoinFeeParameters else {
+            throw WalletError.failedToBuildTx
+        }
+
+        let input = try makeSigningInput(transaction: transaction, nonce: nonce, feeParameters: feeParameters)
+        let txInputData = try input.serializedData()
+
+        let preImageHashes = TransactionCompiler.preImageHashes(coinType: .filecoin, txInputData: txInputData)
+        let preSigningOutput = try TxCompilerPreSigningOutput(serializedData: preImageHashes)
+
+        return preSigningOutput.dataHash
+    }
+
+    func buildForSend(
+        transaction: Transaction,
+        nonce: UInt64,
+        signatureInfo: SignatureInfo
+    ) throws -> FilecoinSignedTransactionBody {
+        guard let feeParameters = transaction.fee.parameters as? FilecoinFeeParameters else {
+            throw WalletError.failedToBuildTx
+        }
+
+        let signatures = DataVector()
+        signatures.add(data: signatureInfo.signature)
+
+        let publicKeys = DataVector()
+        publicKeys.add(data: try Secp256k1Key(with: signatureInfo.publicKey).decompress())
+
+        let input = try makeSigningInput(transaction: transaction, nonce: nonce, feeParameters: feeParameters)
+        let txInputData = try input.serializedData()
+
+        let compiledWithSignatures = TransactionCompiler.compileWithSignatures(
+            coinType: .filecoin,
+            txInputData: txInputData,
+            signatures: signatures,
+            publicKeys: publicKeys
+        )
+
+        let signingOutput = try FilecoinSigningOutput(serializedData: compiledWithSignatures)
+
+        guard let jsonData = signingOutput.json.data(using: .utf8) else {
+            throw WalletError.failedToBuildTx
+        }
+
+        return try JSONDecoder().decode(FilecoinSignedTransactionBody.self, from: jsonData)
+    }
+
+    private func makeSigningInput(
+        transaction: Transaction,
+        nonce: UInt64,
+        feeParameters: FilecoinFeeParameters
+    ) throws -> FilecoinSigningInput {
+        guard let value = transaction.amount.bigUIntValue else {
+            throw WalletError.failedToBuildTx
+        }
+
+        return try FilecoinSigningInput.with { input in
+            input.to = transaction.destinationAddress
+            input.nonce = nonce
+
+            input.value = value.serialize()
+
+            input.gasFeeCap = feeParameters.gasUnitPrice.serialize()
+            input.gasLimit = feeParameters.gasLimit
+            input.gasPremium = feeParameters.gasPremium.serialize()
+
+            input.publicKey = try Secp256k1Key(with: wallet.publicKey.blockchainKey).decompress()
+        }
+    }
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinAccountInfo.swift

@@ -0,0 +1,14 @@
+//
+//  FilecoinAccountInfo.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+struct FilecoinAccountInfo {
+    let balance: Decimal
+    let nonce: UInt64
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinDTOMapper.swift

@@ -0,0 +1,23 @@
+//
+//  FilecoinTransactionBodyConverter.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+enum FilecoinDTOMapper {
+    static func convertTransactionBody(from transactionInfo: FilecoinTxInfo) -> FilecoinTransactionBody {
+        FilecoinTransactionBody(
+            sourceAddress: transactionInfo.sourceAddress,
+            destinationAddress: transactionInfo.destinationAddress,
+            amount: "\(transactionInfo.amount)",
+            nonce: transactionInfo.nonce,
+            gasUnitPrice: nil,
+            gasLimit: nil,
+            gasPremium: nil
+        )
+    }
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinResponse.swift

@@ -0,0 +1,29 @@
+//
+//  FilecoinRpcResponseResult.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+enum FilecoinResponse {
+    struct GetActorInfo: Decodable {
+        let balance: String
+        let nonce: UInt64
+
+        enum CodingKeys: String, CodingKey {
+            case balance = "Balance"
+            case nonce = "Nonce"
+        }
+    }
+
+    struct SubmitTransaction: Decodable {
+        let hash: String
+
+        enum CodingKeys: String, CodingKey {
+            case hash = "/"
+        }
+    }
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinSignedTransactionBody.swift

@@ -0,0 +1,29 @@
+//
+//  FilecoinSignedTransactionBody.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+struct FilecoinSignedTransactionBody: Codable, Equatable {
+    struct Signature: Codable, Equatable {
+        let type: Int
+        let signature: String
+
+        enum CodingKeys: String, CodingKey {
+            case type = "Type"
+            case signature = "Data"
+        }
+    }
+
+    let transactionBody: FilecoinTransactionBody
+    let signature: Signature
+
+    enum CodingKeys: String, CodingKey {
+        case transactionBody = "Message"
+        case signature = "Signature"
+    }
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinTransactionBody.swift

@@ -0,0 +1,29 @@
+//
+//  FilecoinTransactionBody.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+struct FilecoinTransactionBody: Codable, Equatable {
+    let sourceAddress: String
+    let destinationAddress: String
+    let amount: String
+    let nonce: UInt64
+    let gasUnitPrice: String?
+    let gasLimit: UInt64?
+    let gasPremium: String?
+
+    enum CodingKeys: String, CodingKey {
+        case sourceAddress = "From"
+        case destinationAddress = "To"
+        case amount = "Value"
+        case nonce = "Nonce"
+        case gasUnitPrice = "GasFeeCap"
+        case gasLimit = "GasLimit"
+        case gasPremium = "GasPremium"
+    }
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinTxGasInfo.swift

@@ -0,0 +1,15 @@
+//
+//  FilecoinTxGasInfo.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+struct FilecoinTxGasInfo {
+    let gasUnitPrice: UInt64
+    let gasLimit: UInt64
+    let gasPremium: UInt64
+}

BlockchainSdk/Blockchains/Filecoin/Network/DTO/FilecoinTxInfo.swift

@@ -0,0 +1,16 @@
+//
+//  FilecoinTxInfo.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Foundation
+
+struct FilecoinTxInfo {
+    let sourceAddress: String
+    let destinationAddress: String
+    let amount: UInt64
+    let nonce: UInt64
+}

BlockchainSdk/Blockchains/Filecoin/Network/FilecoinNetworkService.swift

@@ -0,0 +1,66 @@
+//
+//  FilecoinNetworkService.swift
+//  BlockchainSdk
+//
+//  Created by Aleksei Muraveinik on 27.08.24.
+//  Copyright © 2024 Tangem AG. All rights reserved.
+//
+
+import Combine
+
+class FilecoinNetworkService: MultiNetworkProvider {
+    let providers: [FilecoinNetworkProvider]
+    var currentProviderIndex = 0
+
+    init(providers: [FilecoinNetworkProvider]) {
+        self.providers = providers
+    }
+
+    func getAccountInfo(address: String) -> AnyPublisher<FilecoinAccountInfo, Error> {
+        providerPublisher { provider in
+            provider
+                .getActorInfo(address: address)
+                .tryMap { response in
+                    guard let balance = Decimal(stringValue: response.balance) else {
+                        throw WalletError.failedToParseNetworkResponse()
+                    }
+
+                    return FilecoinAccountInfo(
+                        balance: balance,
+                        nonce: response.nonce
+                    )
+                }
+                .eraseToAnyPublisher()
+        }
+    }
+
+    func getGasUnitPrice(transactionInfo: FilecoinTxInfo) -> AnyPublisher<UInt64, Error> {
+        providerPublisher { provider in
+            provider
+                .getGasUnitPrice(transactionInfo: transactionInfo)
+                .tryMap { response in
+                    guard let price = UInt64(response) else {
+                        throw WalletError.failedToParseNetworkResponse()
+                    }
+                    return price
+                }
+                .eraseToAnyPublisher()
+        }
+    }
+
+    func getGasLimit(transactionInfo: FilecoinTxInfo) -> AnyPublisher<UInt64, Error> {
+        providerPublisher { provider in
+            provider
+                .getGasLimit(transactionInfo: transactionInfo)
+        }
+    }
+
+    func submitTransaction(signedTransactionBody: FilecoinSignedTransactionBody) -> AnyPublisher<String, Error> {
+        providerPublisher { provider in
+            provider
+                .submitTransaction(signedTransactionBody: signedTransactionBody)
+                .map(\.hash)
+                .eraseToAnyPublisher()
+        }
+    }
+}