#pragma once

#include <J3ML/LinearAlgebra.h>
#include <J3ML/LinearAlgebra/Matrix3x3.h>

namespace LinearAlgebra {
    class Transform2D {
    protected:
        Matrix3x3 transformation;
    public:

        const static Transform2D Identity;
        const static Transform2D FlipX;
        const static Transform2D FlipY;

        Transform2D(float rotation, const Vector2& pos);
        Transform2D(float px, float py, float sx, float sy, float ox, float oy, float kx, float ky, float rotation)
        {
            transformation = Matrix3x3(px, py, rotation, sx, sy, ox, oy, kx, ky);
        }
        Transform2D(const Vector2& pos, const Vector2& scale, const Vector2& origin, const Vector2& skew, float rotation);
        Transform2D(const Matrix3x3& transform);
        Transform2D Translate(const Vector2& offset) const;
        Transform2D Translate(float x, float y) const;
        Transform2D Scale(float scale);           // Perform Uniform Scale
        Transform2D Scale(float x, float y);      // Perform Nonunform Scale
        Transform2D Scale(const Vector2& scales); // Perform Nonuniform Scale
        Transform2D Rotate();
        Vector2 Transform(const Vector2& input) const;
        Transform2D Inverse() const;
        Transform2D AffineInverse() const;
        float Determinant() const;
        Vector2 GetOrigin() const;
        float GetRotation() const;
        Vector2 GetScale() const;
        float GetSkew() const;
        Transform2D OrthoNormalize();
    };
}