namespace DesignPatterns.Flyweight
{
    class Program
    {
        static Random ran = new Random();
        static Random ranIndex = new Random();
        static string[] colors = { "Red", "Green", "Blue", "White", "Black" };
        static void Main(string[] args)
        {
            for (int i = 0; i < 20; ++i)
            {
                Circle circle = (Circle)ShapeFactory.GetCircle(GetRandomColor());
                circle.SetX(GetRandomX());
                circle.SetY(GetRandomY());
                circle.SetRadius(100);
                circle.Draw();
            }
        }
        private static string GetRandomColor()
        { 
            int randKey = ranIndex.Next(0, colors.Count() - 1);
            return colors[randKey];
        }
        private static int GetRandomX()
        {
            var d = GetDouble();
            return (int)(d * 100);
        }
        private static int GetRandomY()
        {
            var d = GetDouble();
            return (int)(d * 100);
        }

        private static double GetDouble()
        {
            int randKey = ran.Next(1, 100);
            return randKey * (1.0) / 100;
        }

    }

    public interface IShape
    {
        void Draw();
    }

    public class Circle : IShape
    {
        private String color;
        private int x;
        private int y;
        private int radius;

        public Circle(String color)
        {
            this.color = color;
        }

        public void SetX(int x)
        {
            this.x = x;
        }

        public void SetY(int y)
        {
            this.y = y;
        }

        public void SetRadius(int radius)
        {
            this.radius = radius;
        }


        public void Draw()
        {
            Console.WriteLine("Circle: Draw() [Color : " + color + ", x : " + x + ", y :" + y + ", radius :" + radius);
        }
    }
    public class ShapeFactory
    {
        private static Dictionary<String, IShape> circleMap = new Dictionary<String, IShape>();

        public static IShape GetCircle(String color)
        {

            Circle circle;
            if (circleMap.ContainsKey(color))
            {
                circle = (Circle)circleMap[color];
            }
            else
            {
                circle = new Circle(color);
                circleMap[color] = circle;
                Console.WriteLine("Creating circle of color : " + color);
            }

            return circle;
        }
    }
}