using Godot;
using System;

public partial class CYSFocusSetup : Node
{
	[Export] private GridContainer grid;
	[Export] private Button button;
	[Export] private ScrollContainer textContainer;
	public override void _Ready()
	{
		for (int i = 0; i < grid.GetChildCount(); i++)
		{
			int x = i % grid.Columns;
			int y = i / grid.Columns;

			Control control = grid.GetChild<Control>(i);

			// If it isn't leftmost element
			if (x != 0)
			{
				control.FocusNeighborLeft = control.GetPathTo(grid.GetChild(PositionToIndex(x - 1, y)));
			}
			// If it isn't upmost element
			if (y != 0)
			{
				control.FocusNeighborTop = control.GetPathTo(grid.GetChild(PositionToIndex(x, y - 1)));
			}
			else
			{
				control.FocusNeighborTop = control.GetPathTo(textContainer);
			}
			// If it isn't rightmost element
			if (x != grid.Columns - 1 && i != grid.GetChildCount())
			{
				control.FocusNeighborRight = control.GetPathTo(grid.GetChild(PositionToIndex(x + 1, y)));
			}
			else
			{
				if (y != 0)
				{
					control.FocusNeighborRight = control.GetPathTo(grid.GetChild(PositionToIndex(x + 1, y - 1)));
				}
				else
				{
					control.FocusNeighborRight = control.GetPathTo(button);
				}
			}
			if (PositionToIndex(x, y + 1) < grid.GetChildCount())
			{
				control.FocusNeighborBottom = control.GetPathTo(grid.GetChild(PositionToIndex(x, y + 1)));
			}

		}

		QueueFree();
	}
	private int PositionToIndex(int x, int y)
	{
		return y * grid.Columns + x;
	}

}