using ProjectBulldozer.MovementStrategy;
using ProjectBulldozer.Drawning;
namespace ProjectBulldozer.Generics
{
    internal class TractorGenericCollection<T, U> where T : DrawingTractor where U : IMoveableObject
    {
        //ширина /высота окна
        private readonly int _pictureWidth;
        private readonly int _pictureHeight;
        //ширина /высота занимаемого места
        private readonly int _placeSizeWidth = 170;
        private readonly int _placeSizeHeight = 130;
        /// Набор объектов
        private readonly SetGeneric<T> _collection;
        public TractorGenericCollection(int picWidth, int picHeight)
        {

            //  высчитываем размер массива для setgeneric
            int width = picWidth / _placeSizeWidth;
            int height = picHeight / _placeSizeHeight;
            _pictureWidth = picWidth;
            _pictureHeight = picHeight;
            _collection = new SetGeneric<T>(width * height);
        }
        /// Перегрузка оператора сложения
        public static int operator +(TractorGenericCollection<T, U> collect, T tract)
        {
            if (tract == null)
            {
                return -1;
            }
            return collect._collection.Insert(tract);
        }
        /// Перегрузка оператора вычитания
        /// <summary>
        /// Перегрузка оператора вычитания
        /// </summary>
        /// <param name="collect"></param>
        /// <param name="pos"></param>
        /// <returns></returns>
        public static bool operator -(TractorGenericCollection<T, U> collect, int
        pos)
        {
            T obj = collect._collection.Get(pos);
            if (obj != null)
            {
                return collect.Remove(pos);
            }
            return false;
        }
        private bool Remove(int pos)
        {
            throw new NotImplementedException();
        }
        // получение объекта imoveableObj
        public U? GetU(int pos)
        {
            return (U?)_collection.Get(pos)?.GetMoveableObject;
        }
        /// Вывод всего набора объектов
        public Bitmap ShowTractors()
        {
            Bitmap bmp = new(_pictureWidth, _pictureHeight);
            Graphics gr = Graphics.FromImage(bmp);
            DrawBackground(gr);
            DrawObjects(gr);
            return bmp;
        }
        private void DrawBackground(Graphics g)
        {
            Pen pen = new(Color.Black, 3);
            for (int i = 0; i < _pictureWidth / _placeSizeWidth; i++)
            {
                for (int j = 0; j < _pictureHeight / _placeSizeHeight + 1; ++j)
                {
                    //линия рамзетки места
                    g.DrawLine(pen, i * _placeSizeWidth, j * _placeSizeHeight, i * _placeSizeWidth + _placeSizeWidth / 3, j * _placeSizeHeight);
                }
                g.DrawLine(pen, i * _placeSizeWidth, 0, i * _placeSizeWidth, _pictureHeight / _placeSizeHeight * _placeSizeHeight);
            }
        }
        private void DrawObjects(Graphics g)
        {
            int HeightObjCount = _pictureHeight / _placeSizeHeight;
            int WidthObjCount = _pictureWidth / _placeSizeWidth;
            for (int i = 0; i < _collection.Count; i++)
            {
                T t = _collection.Get(i);
                if (t != null)
                {
                    {
                        t.SetPosition(((_collection.Count - i - 1) % (_pictureWidth / _placeSizeWidth)) * _placeSizeWidth, (_collection.Count - i - 1) / (_pictureWidth / _placeSizeWidth) * _placeSizeHeight);
                        t.DrawTransport(g);
                    }
                }
            }
        }
    }
}