/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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(at your option) any later version.

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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*==LICENSE==*/
#ifndef PL_PASSMTLBASE_H
#define PL_PASSMTLBASE_H

#include <vector>

#include "plInterp/plAnimEaseTypes.h"

class plNoteTrackWatcher;
class plMtlChangeCallback;
class plAnimStealthNode;
class NoteTrack;
class plPassAnimDlgProc;
class plStealthNodeAccessor;
class plMaxNode;
class plErrorMsg;
namespace ST { class string; }

class plPassMtlBase : public plMaxMtl<Mtl>
{
protected:

    friend class plPassAnimDlgProc;
    friend class plStealthNodeAccessor;
    friend class plNoteTrackWatcher;

    plNoteTrackWatcher  *fNTWatcher;

    IParamBlock2    *fBasicPB;
    IParamBlock2    *fAdvPB;
    IParamBlock2    *fLayersPB;
    IParamBlock2    *fAnimPB;

    Interval        fIValid;

    bool            fLoading;

    std::vector<NoteTrack *> fNotetracks;

    bool                               fStealthsChanged;
    std::vector<plMtlChangeCallback *> fChangeCallbacks;

    void                IUpdateAnimNodes();
    plAnimStealthNode   *IFindStealth( const ST::string &animName );
    plAnimStealthNode   *IVerifyStealthPresent( const ST::string &animName );

    int                 IGetNumStealths( bool update = true );
    plAnimStealthNode   *IGetStealth( int index, bool update = true );

    void                ICloneBase( plPassMtlBase *target, RemapDir &remap );
    virtual void        ICloneRefs( plPassMtlBase *target, RemapDir &remap ) = 0;

public:

    // mcn note: as far as I can tell, this is always the same pointer passed around to everyone.
    // So since we have trouble getting it all the time, just store the first version we get and 
    // use that forever and ever
    static IMtlParams *fIMtlParams;

    plPassMtlBase( BOOL loading );
    virtual ~plPassMtlBase();

    virtual bool HasAlpha() = 0;

    enum Refs
    {
        //kRefBasic,        // Can't do this, long ago they were different in the "derived" classes,
        //kRefAdv,          // and even tho MAX says it doesn't write refs out by their index, it does
        //kRefLayers,
        //kRefAnim,
        kRefNotetracks  = 4 // MUST BE THE LAST REF ID SPECIFIED
    };
    void    SetLoadingFlag( bool f ) { fLoading = f; }
    void    PostLoadAnimPBFixup();

    void    RegisterChangeCallback( plMtlChangeCallback *callback );
    void    UnregisterChangeCallback( plMtlChangeCallback *callback );

    // Change notifys from our ntWatcher
    virtual void    NoteTrackAdded();
    virtual void    NoteTrackRemoved();
    virtual void    NameChanged();

    // Loading/Saving
    IOResult Load(ILoad *iload) override;
    IOResult Save(ISave *isave) override;

    void    Reset() override;

    int             NumRefs() override;
    RefTargetHandle GetReference(int i) override;
    void            SetReference(int i, RefTargetHandle rtarg) override;
    RefResult       NotifyRefChanged(MAX_REF_INTERVAL changeInt, RefTargetHandle hTarget, PartID &partID, RefMessage message MAX_REF_PROPAGATE) override;

    // Convert time, called on the setupProps pass for each material applied to a node in the scene
    virtual bool    SetupProperties( plMaxNode *node, plErrorMsg *pErrMsg );
    virtual bool    ConvertDeInit( plMaxNode *node, plErrorMsg *pErrMsg );

    int                 GetNumStealths();
    plAnimStealthNode   *GetStealth( int index );

    // Static convert to our plPassMtlBase type, if possible
    static plPassMtlBase    *ConvertToPassMtl( Mtl *mtl );

    // Blend types
    enum
    {
        kBlendNone,
        kBlendAlpha,
        kBlendAdd,
        kBlendMult
    };

    // Alpha blend types
    enum
    {
        kAlphaDiscard,
        kAlphaMultiply,
        kAlphaAdd
    };

    // Advanced Block
    virtual int     GetBasicWire() = 0;
    virtual int     GetMeshOutlines() = 0;
    virtual int     GetTwoSided() = 0;
    virtual int     GetSoftShadow() = 0;
    virtual int     GetNoProj() = 0;
    virtual int     GetVertexShade() = 0;
    virtual int     GetNoShade() = 0;
    virtual int     GetNoFog() = 0;
    virtual int     GetWhite() = 0;
    virtual int     GetZOnly() = 0;
    virtual int     GetZClear() = 0;
    virtual int     GetZNoRead() = 0;
    virtual int     GetZNoWrite() = 0;
    virtual int     GetZInc() = 0;
    virtual int     GetAlphaTestHigh() = 0;

    // Animation block
    virtual const MCHAR* GetAnimName() = 0;
    virtual int          GetAutoStart() = 0;
    virtual int          GetLoop() = 0;
    virtual const MCHAR* GetAnimLoopName() = 0;
    virtual int          GetEaseInType() { return plAnimEaseTypes::kNoEase; }
    virtual float        GetEaseInMinLength() { return 1; }
    virtual float        GetEaseInMaxLength() { return 1; }
    virtual float        GetEaseInNormLength() { return 1; }
    virtual int          GetEaseOutType() { return plAnimEaseTypes::kNoEase; }
    virtual float        GetEaseOutMinLength() { return 1; }
    virtual float        GetEaseOutMaxLength() { return 1; }
    virtual float        GetEaseOutNormLength() { return 1; }
    virtual const MCHAR* GetGlobalVarName() { return nullptr; }
    virtual int          GetUseGlobal() { return 0; }

    // Basic block
    virtual int     GetColorLock() = 0;
    virtual Color   GetAmbColor() = 0;
    virtual Color   GetColor() = 0;
    virtual int     GetOpacity() = 0;
    virtual int     GetEmissive() = 0;
    virtual int     GetUseSpec() = 0;
    virtual int     GetShine() = 0;
    virtual Color   GetSpecularColor() = 0;
    virtual int     GetDiffuseColorLock() = 0;
    virtual Color   GetRuntimeColor() = 0;
    virtual Control *GetPreshadeColorController() = 0;
    virtual Control *GetAmbColorController() = 0;
    virtual Control *GetOpacityController() = 0;
    virtual Control *GetSpecularColorController() = 0;
    virtual Control *GetRuntimeColorController() = 0;
    
    // Layer block
    virtual Texmap *GetBaseLayer() = 0;
    virtual int     GetTopLayerOn() = 0;
    virtual Texmap *GetTopLayer() = 0;
    virtual int     GetLayerBlend() = 0;
    virtual int     GetOutputAlpha() = 0;
    virtual int     GetOutputBlend() = 0;
};


// Make sure min is less than normal, which is less than max
class plEaseAccessor : public PBAccessor
{
protected:
    bool fDoingUpdate;
    int fBlockID;
    int fEaseInMinID, fEaseInMaxID, fEaseInNormID, fEaseOutMinID, fEaseOutMaxID, fEaseOutNormID;

    void AdjustMin(IParamBlock2 *pb, ParamID minID, ParamID normalID, ParamID maxID, float value)
    {
        if (value > pb->GetFloat(normalID))
        {
            pb->SetValue(normalID, 0, value);
            if (value > pb->GetFloat(maxID))
                pb->SetValue(maxID, 0, value);
        }
    }
    void AdjustNormal(IParamBlock2 *pb, ParamID minID, ParamID normalID, ParamID maxID, float value)
    {
        if (value < pb->GetFloat(minID))
            pb->SetValue(minID, 0, value);
        if (value > pb->GetFloat(maxID))
            pb->SetValue(maxID, 0, value);
    }
    void AdjustMax(IParamBlock2 *pb, ParamID minID, ParamID normalID, ParamID maxID, float value)
    {
        if (value < pb->GetFloat(normalID))
        {
            pb->SetValue(normalID, 0, value);
            if (value < pb->GetFloat(minID))
                pb->SetValue(minID, 0, value);
        }
    }

public:
    plEaseAccessor(int blockID, int easeInMinID, int easeInMaxID, int easeInNormID, 
                   int easeOutMinID, int easeOutMaxID, int easeOutNormID)
    {
        fDoingUpdate = false;
        fBlockID = blockID;
        fEaseInMinID = easeInMinID; fEaseInMaxID = easeInMaxID; fEaseInNormID = easeInNormID; 
        fEaseOutMinID = easeOutMinID; fEaseOutMaxID = easeOutMaxID; fEaseOutNormID = easeOutNormID;
    }

    void Set(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t) override
    {
        if (fDoingUpdate)
            return;
        fDoingUpdate = true;

        IParamBlock2 *pb = owner->GetParamBlockByID(fBlockID);

        if (id == fEaseInMinID)
            AdjustMin(pb, fEaseInMinID, fEaseInNormID, fEaseInMaxID, v.f);
        else if (id == fEaseInNormID)
            AdjustNormal(pb, fEaseInMinID, fEaseInNormID, fEaseInMaxID, v.f);
        else if (id == fEaseInMaxID)
            AdjustMax(pb, fEaseInMinID, fEaseInNormID, fEaseInMaxID, v.f);
        else if (id == fEaseOutMinID)
            AdjustMin(pb, fEaseOutMinID, fEaseOutNormID, fEaseOutMaxID, v.f);
        else if (id == fEaseOutNormID)
            AdjustNormal(pb, fEaseOutMinID, fEaseOutNormID, fEaseOutMaxID, v.f);
        else if (id == fEaseOutMaxID)
            AdjustMax(pb, fEaseOutMinID, fEaseOutNormID, fEaseOutMaxID, v.f);

        fDoingUpdate = false;
    }
};

//// plMtlChangeCallback /////////////////////////////////////////////////////
//  Interface class for receiving info about when things change on a material.

class plMtlChangeCallback
{
    public:
        virtual void    NoteTrackListChanged() { }
        virtual void    SegmentListChanged() { }
};

#endif // PL_PASSMTLBASE_H