using System;

namespace E01.ClassBox
{
    public class Box
    {
        private double lenght;
        private double width;
        private double height;

        public Box(double lenght, double width, double height)
        {
            Lenght = lenght;
            Width = width;
            Height = height;
        }

        private double Lenght
        {
            set
            {
                if (value <= 0)
                {
                    throw new ArgumentException($"{nameof(Lenght)} cannot be zero or negative.");
                }

                lenght = value;
            }
        }

        private double Width
        {
            set
            {
                if (value <= 0)
                {
                    throw new ArgumentException($"{nameof(Width)} cannot be zero or negative.");
                }

                width = value;
            }
        }

        private double Height
        {
            set
            {
                if (value <= 0)
                {
                    throw new ArgumentException($"{nameof(Height)} cannot be zero or negative.");
                }

                height = value;
            }
        }

        public double BoxVolume()
        {
            return lenght * width * height;
        }

        public double BoxLateralSurfArea()
        {
            return 2 * lenght * height + 2 * width * height;
        }

        public double BoxSurfArea()
        {
            return 2 * lenght * width + 2 * lenght * height + 2 * width * height;
        }
    }
}