SnapshotHash.h

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#pragma once
 
#include "common/Identity.h"
#include "common/Result.h"
#include "common/Snapshot.h"
 
#include <memory>
#include <string>
#include <string_view>
 
namespace eve {
 
enum class ContentDigestKind : std::uint8_t {
    NonCryptographic,
    Cryptographic,
};
 
[[nodiscard]] EVENGINE_API_FOUNDATION std::string_view contentDigestKindName(ContentDigestKind kind) noexcept;
 
class ISnapshotContentHasher {
public:
    static constexpr const char* capabilityName = "eve.ISnapshotContentHasher";
 
    virtual ~ISnapshotContentHasher() = default;
 
    [[nodiscard]] virtual std::string_view id() const noexcept = 0;
 
    [[nodiscard]] virtual ContentDigestKind digestKind() const noexcept = 0;
 
    [[nodiscard]] virtual Result<ContentId> hash(std::string_view canonicalInput) const = 0;
};
 
[[nodiscard]] EVENGINE_API std::shared_ptr<ISnapshotContentHasher> builtinSnapshotContentHasher();
 
[[nodiscard]] EVENGINE_API ISnapshotContentHasher* registeredSnapshotContentHasher() noexcept;
 
[[nodiscard]] EVENGINE_API Result<void> registerBuiltinSnapshotHasher();
 
[[nodiscard]] EVENGINE_API SnapshotHashProvider snapshotContentHashProvider();
 
[[nodiscard]] EVENGINE_API std::string_view activeSnapshotHashAlgorithm() noexcept;
 
}  // namespace eve