using System.Drawing;

namespace ProjectLiner
{
    internal class DrawingLiner
    {
        Liner aag;
        private readonly int _width = 0;
        private readonly int _height = 0;
        public DrawingLiner(Liner aag)
        {
            this.aag = aag;
            _height = 60 + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15);
            _width = 150;
        }
        public DrawingLiner()
        {
            aag = new Liner();
        }
        public void SetPos(Point pos)
        {
            aag.position.X = Math.Clamp(pos.X + aag.position.X, 0, Program.faag.ClientSize.Width-_width);
            aag.position.Y = Math.Clamp(pos.Y + aag.position.Y, 0, Program.faag.ClientSize.Height-_height);
        }
        public void MoveTransport(Vector2 way)
        {
            if(way == null)
            {
                throw new NullReferenceException();
            }
            SetPos(new Point((int)(way.x*aag.Step), (int)(way.y*aag.Step)));
        }
        public void Draw(Graphics g)
        {
            Pen pen = new Pen(Color.Black);
            Brush brush1 = new SolidBrush(aag.FirstColor);
            Brush brush2 = new SolidBrush(aag.SecondColor);

            //deck
            g.DrawPolygon(pen, new Point[] { 
                new Point(0 + aag.position.X, 15 + aag.position.Y+((int)(aag.NumOfBoxes/8+0.5)*15)),
                new Point(150 + aag.position.X, 15 + aag.position.Y+((int)(aag.NumOfBoxes/8+0.5)*15)),
                new Point(120 + aag.position.X, 45 + aag.position.Y+((int)(aag.NumOfBoxes/8+0.5)*15)),
                new Point(30 + aag.position.X, 45 + aag.position.Y +((int)(aag.NumOfBoxes / 8 + 0.5) * 15)),
                new Point(0 + aag.position.X, 15 + aag.position.Y +((int)(aag.NumOfBoxes / 8 + 0.5) * 15))});
            g.FillPolygon(brush1, new Point[] {
                new Point(0 + aag.position.X, 15 + aag.position.Y+((int)(aag.NumOfBoxes/8+0.5)*15)),
                new Point(150 + aag.position.X, 15 + aag.position.Y+((int)(aag.NumOfBoxes/8+0.5)*15)),
                new Point(120 + aag.position.X, 45 + aag.position.Y+((int)(aag.NumOfBoxes/8+0.5)*15)),
                new Point(30 + aag.position.X, 45 + aag.position.Y +((int)(aag.NumOfBoxes / 8 + 0.5) * 15)),
                new Point(0 + aag.position.X, 15 + aag.position.Y +((int)(aag.NumOfBoxes / 8 + 0.5) * 15))});
            //mark
            if (aag.HasMark)
            {
                g.DrawLine(new Pen(aag.SecondColor),30+aag.position.X, 20 + aag.position.Y + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 30 + aag.position.X, 35 + aag.position.Y + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15));
                g.DrawLine(new Pen(aag.SecondColor), 20+aag.position.X, 25 + aag.position.Y + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 40 + aag.position.X, 25 + aag.position.Y + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15));
            }
            //block
            for (int j = 0; j <= (int)(aag.NumOfBoxes / 8 + 0.5); j++)
            {
                if(aag.NumOfBoxes - j * 8 >= 8)
                    for (int i = 0; i < 8; i++)
                    {
                        g.FillRectangle(brush2, 15 + aag.position.X + i * 15, aag.position.Y - j * 15+((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 15, 15);
                        g.DrawRectangle(pen, 15 + aag.position.X + i * 15, aag.position.Y - j * 15 + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 15, 15);
                    }
                else
                    for (int i = 0; i < aag.NumOfBoxes%8; i++)
                    {
                        if(aag.NumOfBoxes % 8 == 1)
                        {
                            g.FillRectangle(brush2, 8 + 15 + aag.position.X + (90 / 2), aag.position.Y - j * 15 + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 15, 15);
                            g.DrawRectangle(pen, 8 + 15 + aag.position.X + (90 / 2), aag.position.Y - j * 15 + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 15, 15);
                            continue;
                        }
                        g.FillRectangle(brush2,8 +15 + aag.position.X + (90 / (aag.NumOfBoxes % 8 - 1)) * i, aag.position.Y - j * 15 + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 15, 15);
                        g.DrawRectangle(pen,8 + 15 + aag.position.X + (90 / (aag.NumOfBoxes % 8 - 1)) * i, aag.position.Y - j * 15 + ((int)(aag.NumOfBoxes / 8 + 0.5) * 15), 15, 15);
                    }
            }
        }
    }
}