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#pragma once
#include "buffer.h"

struct TopologyImpl;

namespace shim {

    struct BoundaryMode {
        enum e {
            NONE,
            EDGE_ONLY,
            EDGE_AND_CORNER,
            ALWAYS_SHARP,
        };
    };

    class Subdivider;

    class Topology {
    public:
        Topology(const shim::HomogeneousBuffer& indices,
                 const shim::HomogeneousBuffer& valences);
        ~Topology();

        void copyAnnotationsFrom(const Topology& topo);
 
        void finalize();
        
        BoundaryMode::e getBoundaryMode() const;
        void setBoundaryMode(BoundaryMode::e bm);

        int getNumVertices() const;
        float getVertexSharpness(int vertex) const;
        void setVertexSharpness(int vertex, float sharpness);
        
        int getNumFaces() const;
        bool getFaceHole(int face) const;
        void setFaceHole(int face, bool isHole);

        int getNumEdges(int face) const;
        float getEdgeSharpness(int face, int edge) const;
        void setEdgeSharpness(int face, int edge, float sharpness);

    private:
        TopologyImpl *self;
        friend class shim::Subdivider;
    };

}