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// Copyright (c) 2017, 2021 Pieter Wuille
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
// Bech32 and Bech32m are string encoding formats used in newer
// address types. The outputs consist of a human-readable part
// (alphanumeric), a separator character (1), and a base32 data
// section, the last 6 characters of which are a checksum. The
// module is namespaced under bech32 for historical reasons.
//
// For more information, see BIP 173 and BIP 350.
#ifndef BITCOIN_BECH32_H
#define BITCOIN_BECH32_H
#include <stdint.h>
#include <string>
#include <vector>
namespace bech32
{
enum class Encoding {
INVALID, //!< Failed decoding
BECH32, //!< Bech32 encoding as defined in BIP173
BECH32M, //!< Bech32m encoding as defined in BIP350
};
/** Encode a Bech32 or Bech32m string. If hrp contains uppercase characters, this will cause an
* assertion error. Encoding must be one of BECH32 or BECH32M. */
std::string Encode(Encoding encoding, const std::string& hrp, const std::vector<uint8_t>& values);
struct DecodeResult
{
Encoding encoding; //!< What encoding was detected in the result; Encoding::INVALID if failed.
std::string hrp; //!< The human readable part
std::vector<uint8_t> data; //!< The payload (excluding checksum)
DecodeResult() : encoding(Encoding::INVALID) {}
DecodeResult(Encoding enc, std::string&& h, std::vector<uint8_t>&& d) : encoding(enc), hrp(std::move(h)), data(std::move(d)) {}
};
/** Decode a Bech32 or Bech32m string. */
DecodeResult Decode(const std::string& str);
} // namespace bech32
#endif // BITCOIN_BECH32_H
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