namespace ConsoleDisplay.Driver.Virtual
{
  public class VirtualDisplay : IDisplay
  {
    private List<VirtualBulb> BulbList;

    public VirtualDisplay(int iWidth, int iHeight)
    {
      Width = iWidth;
      Height = iHeight;

      BulbList = new List<VirtualBulb>();
      h_Init(iWidth, iHeight);
      IsEnabled = true;
    }


    private void h_Init(int width, int height)
    {
      for (int ii = 0; ii < width; ii++) {
        for (int jj = 0; jj < height; jj++) {
          BulbList.Add(new VirtualBulb(ii, jj));
        }
      }
    }



    public int Width { get; }
    public int Height { get; }
    public bool IsEnabled { get; }
    public void Reset()
    {
      for (int jj = 0; jj < BulbList.Count; jj++) {
        BulbList[jj].IsEnabled = false;
      }
    }

    public void Set(int iX, int iY, bool bState)
    {
      VirtualBulb vb = h_GetBulb(iX, iY);
      if (vb == null) return;
      vb.IsEnabled = bState;
    }

    private VirtualBulb h_GetBulb(int iX, int iY)
    {
      for (int jj = 0; jj < BulbList.Count; jj++) {
        if (BulbList[jj].X == iX && BulbList[jj].Y == iY) {
          return BulbList[jj];
        }
      }

      return null;
    }

    public bool Get(int iX, int iY)
    {
      VirtualBulb vb = h_GetBulb(iX, iY);
      if (vb == null) return false;
      return vb.IsEnabled;
    }
  }
}