#ifndef __URDE_CFSTREAMEDCOMPRESSION_HPP__
#define __URDE_CFSTREAMEDCOMPRESSION_HPP__

#include "RetroTypes.hpp"
#include "CToken.hpp"
#include "CAnimPOIData.hpp"
#include "zeus/CVector3f.hpp"

namespace urde
{
class IObjectStore;

class CFBStreamedCompression
{
    friend class CFBStreamedAnimReader;
    friend class CFBStreamedAnimReaderTotals;
    friend class CFBStreamedPairOfTotals;

    struct Header
    {
        u32 unk0;
        float duration;
        float interval;
        u32 rootBoneId;
        u32 unk2;
        u32 rotDiv;
        float translationMult;
        u32 boneChannelCount;
        u32 unk3;

        void read(CInputStream& in)
        {
            /* unk0 */
            unk0 = in.readUint32Big();
            /* duration */
            duration = in.readFloatBig();
            /* interval */
            interval = in.readFloatBig();
            /* rootBoneId */
            rootBoneId = in.readUint32Big();
            /* unk2 */
            unk2 = in.readUint32Big();
            /* rotDiv */
            rotDiv = in.readUint32Big();
            /* translationMult */
            translationMult = in.readFloatBig();
            /* boneChannelCount */
            boneChannelCount = in.readUint32Big();
            /* unk3 */
            unk3 = in.readUint32Big();
        }
    };

    u32 x0_scratchSize;
    ResId x4_evnt;
    TLockedToken<CAnimPOIData> x8_evntToken;
    std::unique_ptr<u32[]> xc_rotsAndOffs;
    zeus::CVector3f x14_rootOffset;

    static u8* ReadBoneChannelDescriptors(u8* out, CInputStream& in);
    static std::unique_ptr<u32[]> GetRotationsAndOffsets(u32 words, CInputStream& in);
    static u32 ComputeBitstreamWords(const u8* chans);
public:
    CFBStreamedCompression(CInputStream& in, IObjectStore& objStore);
    CCharAnimTime GetAnimationDuration() const { return reinterpret_cast<const Header*>(xc_rotsAndOffs.get())->duration; }
    const TLockedToken<CAnimPOIData>& GetPOIToken() const { return x8_evntToken; }
};

}

#endif // __URDE_CFSTREAMEDCOMPRESSION_HPP__