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#ifndef INCLUDED_SRC_BUILDTOOL_CRYPTO_HASH_IMPL_HPP
#define INCLUDED_SRC_BUILDTOOL_CRYPTO_HASH_IMPL_HPP
#include <optional>
#include <string>
#include "src/buildtool/logging/logger.hpp"
/// \brief Interface for hash implementations
class IHashImpl {
public:
IHashImpl() noexcept = default;
IHashImpl(IHashImpl const&) = default;
IHashImpl(IHashImpl&&) = default;
auto operator=(IHashImpl const&) -> IHashImpl& = default;
auto operator=(IHashImpl &&) -> IHashImpl& = default;
virtual ~IHashImpl() = default;
/// \brief Feed data to the incremental hashing.
[[nodiscard]] virtual auto Update(std::string const& data) noexcept
-> bool = 0;
/// \brief Finalize the hashing and return hash as string of raw bytes.
[[nodiscard]] virtual auto Finalize() && noexcept
-> std::optional<std::string> = 0;
/// \brief Compute the hash of data and return it as string of raw bytes.
[[nodiscard]] virtual auto Compute(std::string const& data) && noexcept
-> std::string = 0;
/// \brief Get length of the hash in raw bytes.
[[nodiscard]] virtual auto DigestLength() const noexcept -> std::size_t = 0;
static auto FatalError() noexcept -> void {
Logger::Log(LogLevel::Error, "Failed to compute hash.");
std::terminate();
}
};
#endif // INCLUDED_SRC_BUILDTOOL_CRYPTO_HASH_IMPL_HPP
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