namespace GeometriCS
{
    /// <summary>
    /// A line through the R cubed space with double precision.
    /// </summary>
    public class Line3d
    {
        /// <summary>
        /// A point that lies on the line.
        /// </summary>
        public Vector3d PointOnLine
        {
            get
            {
                throw new NotImplementedException();
            }
        }

        /// <summary>
        /// Direction vector, along which all the points on the line lie.
        /// </summary>
        public Vector3d Direction
        {
            get
            {
                throw new NotImplementedException();
            }
        }

        /// <summary>
        /// Constructor for the line.
        /// </summary>
        /// <param name="pointOnLine">Point that lies on the line.</param>
        /// <param name="direction">Direction vector on the line.</param>
        public Line3d(Vector3d pointOnLine, Vector3d direction)
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// String representation of the line.
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// Do the two objects represent the same line?
        /// </summary>
        /// <param name="obj">Object to compare.</param>
        /// <remarks>
        /// <returns><c>true</c> if any two different points on one line will also be on the other line. <c>false</c></returns>
        public override bool Equals(object? obj)
        {
            if (obj is Line3d asLn)
            {
                return this == asLn;
            }
            else
            {
                return false;
            }
        }

        public override int GetHashCode()
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// Deep copy the line.
        /// </summary>
        /// <returns>Deep copy of the line.</returns>
        public object Clone()
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// Are the lines equal?
        /// </summary>
        /// <param name="a">First line.</param>
        /// <param name="b">Second line.</param>
        /// <returns><c>true</c> if any two different points on one line will also be on the other line. <c>false</c></returns>
        public static bool operator ==(Line3d a, Line3d b)
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// Are the lines different?
        /// </summary>
        /// <param name="a">First line.</param>
        /// <param name="b">Second line.</param>
        /// <returns><c>true</c> If there exists a point p from all the points occupying line a and does not lie on line b. Otherwise <c>false</c>.</returns>
        public static bool operator !=(Line3d a, Line3d b)
        {
            throw new NotImplementedException();
        }
    }
}