#ifndef __URDE_IANIMREADER_HPP__
#define __URDE_IANIMREADER_HPP__

#include "RetroTypes.hpp"
#include "CCharAnimTime.hpp"
#include "zeus/CVector3f.hpp"
#include "zeus/CQuaternion.hpp"
#include "CParticleData.hpp"
#include "CToken.hpp"
#include "CAllFormatsAnimSource.hpp"

namespace urde
{
class CSegId;
class CBoolPOINode;
class CInt32POINode;
class CParticlePOINode;
class CSoundPOINode;
class CSegIdList;
class CSegStatementSet;

struct SAdvancementDeltas
{
    zeus::CVector3f x0_posDelta;
    zeus::CQuaternion xc_rotDelta;

    static SAdvancementDeltas Interpolate(const SAdvancementDeltas& a, const SAdvancementDeltas& b,
                                          float oldWeight, float newWeight);
    static SAdvancementDeltas Blend(const SAdvancementDeltas& a, const SAdvancementDeltas& b, float w);
};

struct SAdvancementResults
{
    CCharAnimTime x0_remTime;
    SAdvancementDeltas x8_deltas;
};

class CSteadyStateAnimInfo
{
    CCharAnimTime x0_duration;
    zeus::CVector3f x8_offset;
    bool x14_looping = false;

public:
    CSteadyStateAnimInfo(bool looping, const CCharAnimTime& duration, const zeus::CVector3f& offset)
    : x0_duration(duration), x8_offset(offset), x14_looping(looping) {}

    const CCharAnimTime& GetDuration() const { return x0_duration; }
    const zeus::CVector3f& GetOffset() const { return x8_offset; }
    bool IsLooping() const { return x14_looping; }
};

struct CAnimTreeEffectiveContribution
{
    float x0_contributionWeight;
    std::string x4_name;
    CSteadyStateAnimInfo x14_ssInfo;
    CCharAnimTime x2c_remTime;
    u32 x34_dbIdx;
public:
    CAnimTreeEffectiveContribution(float cweight, std::string_view name, const CSteadyStateAnimInfo& ssInfo,
                                   const CCharAnimTime& remTime, u32 dbIdx)
    : x0_contributionWeight(cweight), x4_name(name), x14_ssInfo(ssInfo), x2c_remTime(remTime), x34_dbIdx(dbIdx) {}
    float GetContributionWeight() const { return x0_contributionWeight; }
    std::string_view GetPrimitiveName() const { return x4_name; }
    const CSteadyStateAnimInfo& GetSteadyStateAnimInfo() const { return x14_ssInfo; }
    const CCharAnimTime& GetTimeRemaining() const { return x2c_remTime; }
    u32 GetAnimDatabaseIndex() const { return x34_dbIdx; }
};

template <class T>
class TSubAnimTypeToken : public TLockedToken<CAllFormatsAnimSource>
{
};

template <>
class TSubAnimTypeToken<CAnimSource> : public TLockedToken<CAllFormatsAnimSource>
{
public:
    TSubAnimTypeToken<CAnimSource>(const TLockedToken<CAllFormatsAnimSource>& token)
    : TLockedToken<CAllFormatsAnimSource>(token) {}

    const CAnimSource* GetObj() const
    {
        const CAllFormatsAnimSource* source = TLockedToken<CAllFormatsAnimSource>::GetObj();
        return &source->GetAsCAnimSource();
    }
    const CAnimSource* operator->() const {return GetObj();}
    const CAnimSource& operator*() const {return *GetObj();}
};

template <>
class TSubAnimTypeToken<CFBStreamedCompression> : public TLockedToken<CAllFormatsAnimSource>
{
public:
    TSubAnimTypeToken<CFBStreamedCompression>(const TLockedToken<CAllFormatsAnimSource>& token)
    : TLockedToken<CAllFormatsAnimSource>(token) {}

    const CFBStreamedCompression* GetObj() const
    {
        const CAllFormatsAnimSource* source = TLockedToken<CAllFormatsAnimSource>::GetObj();
        return &source->GetAsCFBStreamedCompression();
    }
    const CFBStreamedCompression* operator->() const {return GetObj();}
    const CFBStreamedCompression& operator*() const {return *GetObj();}
};

class IAnimReader
{
public:
    virtual ~IAnimReader() = default;
    virtual bool IsCAnimTreeNode() const {return false;}
    virtual SAdvancementResults VAdvanceView(const CCharAnimTime& a)=0;
    virtual CCharAnimTime VGetTimeRemaining() const=0;
    virtual CSteadyStateAnimInfo VGetSteadyStateAnimInfo() const=0;
    virtual bool VHasOffset(const CSegId& seg) const=0;
    virtual zeus::CVector3f VGetOffset(const CSegId& seg) const=0;
    virtual zeus::CQuaternion VGetRotation(const CSegId& seg) const=0;
    virtual u32 VGetBoolPOIList(const CCharAnimTime& time, CBoolPOINode* listOut, u32 capacity, u32 iterator, u32) const=0;
    virtual u32 VGetInt32POIList(const CCharAnimTime& time, CInt32POINode* listOut, u32 capacity, u32 iterator, u32) const=0;
    virtual u32 VGetParticlePOIList(const CCharAnimTime& time, CParticlePOINode* listOut, u32 capacity, u32 iterator, u32) const=0;
    virtual u32 VGetSoundPOIList(const CCharAnimTime& time, CSoundPOINode* listOut, u32 capacity, u32 iterator, u32) const=0;
    virtual bool VGetBoolPOIState(const char*) const=0;
    virtual s32 VGetInt32POIState(const char*) const=0;
    virtual CParticleData::EParentedMode VGetParticlePOIState(const char*) const=0;
    virtual void VGetSegStatementSet(const CSegIdList& list, CSegStatementSet& setOut) const=0;
    virtual void VGetSegStatementSet(const CSegIdList& list, CSegStatementSet& setOut, const CCharAnimTime& time) const=0;
    virtual std::unique_ptr<IAnimReader> VClone() const=0;
    virtual std::experimental::optional<std::unique_ptr<IAnimReader>> VSimplified() {return {};}
    virtual void VSetPhase(float)=0;
    virtual SAdvancementResults VGetAdvancementResults(const CCharAnimTime& a, const CCharAnimTime& b) const;

    u32 GetBoolPOIList(const CCharAnimTime& time, CBoolPOINode* listOut, u32 capacity, u32 iterator, u32) const;
    u32 GetInt32POIList(const CCharAnimTime& time, CInt32POINode* listOut, u32 capacity, u32 iterator, u32) const;
    u32 GetParticlePOIList(const CCharAnimTime& time, CParticlePOINode* listOut, u32 capacity, u32 iterator, u32) const;
    u32 GetSoundPOIList(const CCharAnimTime& time, CSoundPOINode* listOut, u32 capacity, u32 iterator, u32) const;

    std::experimental::optional<std::unique_ptr<IAnimReader>> Simplified() { return VSimplified(); }

    std::unique_ptr<IAnimReader> Clone() const { return VClone(); }
};

}

#endif // __URDE_IANIMREADER_HPP__