using Bentley.DgnPlatformNET;
using Bentley.DgnPlatformNET.Elements;
using Bentley.GeometryNET;
using Bentley.MstnPlatformNET;

namespace Mstn.Toolkit.Extensions
{
    internal static class ElementTransformExtensions
    {
        public static void ApplyTransformInfo(this Element element, DTransform3d transform)
        {
            TransformInfo transformInfo = new(transform);
            element.ApplyTransform(transformInfo);
            element.AddToModel();//内存中定义的元素应用到磁盘文件的模型中
        }
        /// <summary>
        /// 设置为当前视角旋转变换
        /// </summary>
        /// <returns></returns>
        public static void SetCurrentViewRotation(this Element element)
        {
            Session.GetActiveViewport().GetRotation().TryInvert(out DMatrix3d invertMatrix);//获得当前视角的旋转转置矩阵
            DTransform3d dTransform3D = new DTransform3d(invertMatrix);//使用旋转矩阵创建几何变换
            TransformInfo transform = new TransformInfo(dTransform3D);//使用几何变换创建变换信息
            element.ApplyTransform(transform);
        }

        /// <summary>
        /// 移动
        /// </summary>
        /// <param name="element"></param>
        /// <param name="translateVector"></param>
        public static void Move(this Element element, DVector3d translateVector)
        {
            double uorPerMas = Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter;//主单位与分辨率单位的比值，最常用的比值

            var vector = translateVector * uorPerMas;
            DTransform3d trans = DTransform3d.FromTranslation(vector);
            TransformInfo info = new(trans);
            element.ApplyTransform(info);
            element.AddToModel();
        }
        /// <summary>
        /// 移动
        /// </summary>
        /// <param name="element"></param>
        /// <param name="targetPoint"></param>
        public static void MoveTo(this Element element, DPoint3d targetPoint)
        {
            double uorPerMas = Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter;//主单位与分辨率单位的比值，最常用的比值

            var target = targetPoint * uorPerMas;
            DTransform3d trans = DTransform3d.FromTranslation(target);
            TransformInfo info = new(trans);
            element.ApplyTransform(info);
            element.AddToModel();
        }
        /// <summary>
        /// 旋转
        /// </summary>
        /// <param name="element"></param>
        /// <param name="origin">基点</param>
        /// <param name="axis">旋转轴</param>
        /// <param name="angle">角度(°)</param>
        public static void Rotate(this Element element, DPoint3d origin, DVector3d axis, Angle angle)
        {
            double uorPerMas = Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter;//主单位与分辨率单位的比值，最常用的比值

            var vector = origin * uorPerMas;
            DTransform3d trans = DTransform3d.FromRotationAroundLine(origin, axis, angle);
            TransformInfo info = new(trans);
            element.ApplyTransform(info);
            element.AddToModel();
        }
        public static void Rotate(this DisplayableElement element, DVector3d axis, Angle angle)
        {
            double uorPerMas = Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter;//主单位与分辨率单位的比值，最常用的比值
            element.GetTransformOrigin(out DPoint3d origin);
            var vector = origin * uorPerMas;
            DTransform3d trans = DTransform3d.FromRotationAroundLine(origin, axis, angle);
            TransformInfo info = new(trans);
            element.ApplyTransform(info);
            element.AddToModel();
        }
    }
}