BlockDifficultyCacheDelta.h

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#pragma once
#include "BlockDifficultyCacheTypes.h"
#include "catapult/cache/CacheMixinAliases.h"
#include "catapult/cache/ReadOnlySimpleCache.h"
#include "catapult/cache/ReadOnlyViewSupplier.h"
#include "catapult/deltaset/BaseSetDelta.h"
 
namespace catapult { namespace cache {
 
    using BlockDifficultyCacheDeltaMixins = BasicCacheMixins<
        BlockDifficultyCacheTypes::PrimaryTypes::BaseSetDeltaType,
        BlockDifficultyCacheDescriptor>;
 
    class BasicBlockDifficultyCacheDelta
            : public utils::MoveOnly
            , public BlockDifficultyCacheDeltaMixins::Size
            , public BlockDifficultyCacheDeltaMixins::Contains
            , public BlockDifficultyCacheDeltaMixins::DeltaElements {
    public:
        using ReadOnlyView = BlockDifficultyCacheTypes::CacheReadOnlyType;
        using ValueType = BlockDifficultyCacheDescriptor::ValueType;
        using IterableView = IterationMixin<BlockDifficultyCacheTypes::PrimaryTypes::BaseSetDeltaType>::IterableView;
 
    public:
        explicit BasicBlockDifficultyCacheDelta(
                const BlockDifficultyCacheTypes::BaseSetDeltaPointers& difficultyInfoSets,
                const BlockDifficultyCacheTypes::Options& options);
 
    public:
        deltaset::PruningBoundary<ValueType> pruningBoundary() const;
 
    public:
        //  IsBaseSetIterable is not (and should not be) implemented for base set deltas.
        std::unique_ptr<IterableView> tryMakeIterableView() const;
 
    public:
        void insert(const ValueType& info);
 
        void insert(Height height, Timestamp timestamp, Difficulty difficulty);
 
        void remove(const ValueType& info);
 
        void remove(Height height);
 
    public:
        void prune(Height height);
 
    private:
        void checkInsert(Height height);
        void checkRemove(Height height) const;
        Height nextHeight() const;
 
    private:
        BlockDifficultyCacheTypes::PrimaryTypes::BaseSetDeltaPointerType m_pOrderedDelta;
        uint64_t m_difficultyHistorySize;
        Height m_startHeight;
        deltaset::PruningBoundary<ValueType> m_pruningBoundary;
    };
 
    class BlockDifficultyCacheDelta : public ReadOnlyViewSupplier<BasicBlockDifficultyCacheDelta> {
    public:
        explicit BlockDifficultyCacheDelta(
                const BlockDifficultyCacheTypes::BaseSetDeltaPointers& difficultyInfoSets,
                const BlockDifficultyCacheTypes::Options& options)
                : ReadOnlyViewSupplier(difficultyInfoSets, options)
        {}
    };
}}