// 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.

#pragma once

#include "../Data.h"

#include "../PublicKey.h"

#include <string>

#include <optional>

namespace TW::FIO {

class Address {

public:

/// Number of bytes in an address, public key size + checksum

static const size_t size = PublicKey::secp256k1Size + 4;

/// Address data consisting of a prefix byte followed by the public key

/// hash.

std::array<byte, size> bytes;

/// Determines whether a string makes a valid FIO address.

static bool isValid(const std::string& string);

/// Determines whether a string makes a valid FIO address.

static bool isValid(const Data& bytes);

/// Initializes a FIO address from a string representation.

Address(const std::string& string);

/// Initializes a FIO address from a public key.

Address(const PublicKey& publicKey);

/// Returns a string representation of the FIO address.

std::string string() const;

friend bool operator==(const Address& lhs, const Address& rhs);

static std::string prefix() { return "FIO"; }

private:

static uint32_t createChecksum(const Data& bytes);

static std::optional<Data> decodeKeyData(const std::string& string);

};

inline bool operator==(const Address& lhs, const Address& rhs) {

return lhs.bytes == rhs.bytes;

}

} // namespace TW::FIO

/// Wrapper for C interface.

struct TWFIOAddress {

TW::FIO::Address impl;

};