TransactionCompiler.h

// SPDX-License-Identifier: Apache-2.0
//
// Copyright © 2017 Trust Wallet.

#pragma once

#include <TrustWalletCore/TWCoinType.h>
#include "Data.h"
#include "CoinEntry.h"

#include <string>
#include <vector>

namespace TW {

/// Non-core transaction utility methods, like building a transaction using an external signature
class TransactionCompiler {
public:
    /// Obtain pre-signing hash of a transaction. 
    /// It will return a proto object named `PreSigningOutput` which will include hash.
    /// We provide a default `PreSigningOutput` in TransactionCompiler.proto.
    /// For some special coins, such as bitcoin, we will create a custom `PreSigningOutput` object in its proto file.
    static Data preImageHashes(TWCoinType coinType, const Data& txInputData);

    /// Compile a complete transation with an external signature, put together from transaction input and provided public key and signature
    static Data compileWithSignatures(TWCoinType coinType, const Data& txInputData, const std::vector<Data>& signatures, const std::vector<Data>& publicKeys);
    
    static Data compileWithSignaturesAndPubKeyType(TWCoinType coinType, const Data& txInputData, const std::vector<Data>& signatures, const std::vector<Data>& publicKeys, TWPublicKeyType pubKeyType);

};

} // namespace TW