// Copyright © 2017-2020 Trust Wallet.

//

// This file is part of Trust. The full Trust copyright notice, including

// terms governing use, modification, and redistribution, is contained in the

// file LICENSE at the root of the source code distribution tree.

#include "Address.h"

#include "AddressChecksum.h"

#include "../Hash.h"

#include "../HexCoding.h"

using namespace TW::Ethereum;

bool Address::isValid(const std::string& string) {

if (string.size() != 42 || string[0] != '0' || string[1] != 'x') {

return false;

}

const auto data = parse_hex(string);

return Address::isValid(data);

}

Address::Address(const std::string& string) {

if (!isValid(string)) {

throw std::invalid_argument("Invalid address data");

}

const auto data = parse_hex(string);

std::copy(data.begin(), data.end(), bytes.begin());

}

Address::Address(const Data& data) {

if (!isValid(data)) {

throw std::invalid_argument("Invalid address data");

}

std::copy(data.begin(), data.end(), bytes.begin());

}

Address::Address(const PublicKey& publicKey) {

if (publicKey.type != TWPublicKeyTypeSECP256k1Extended) {

throw std::invalid_argument("Ethereum::Address needs an extended SECP256k1 public key.");

}

const auto data = publicKey.hash({}, static_cast<Data(*)(const byte*, const byte*)>(Hash::keccak256), true);

std::copy(data.end() - Address::size, data.end(), bytes.begin());

}

std::string Address::string() const {

return checksumed(*this, ChecksumType::eip55);

}