using System;
using System.Drawing;
using System.Text.RegularExpressions;

public static class DisplayFusionFunction
{
	public static void Run(IntPtr windowHandle)
	{
		// Get the monitor ID of the monitor that the mouse is currently on
		uint currentMonitorID = BFS.Monitor.GetMonitorIDByXY(BFS.Input.GetMousePositionX(), BFS.Input.GetMousePositionY());
		
		// Get the visible and minimized windows
		IntPtr[] windowHandles = BFS.Window.GetVisibleAndMinimizedWindowHandles();
		
		// Loop through the window handles to get their window titles
		string[] windowTitles = new string[windowHandles.Length];
		for (int i = 0; i < windowHandles.Length; i++)
		{
			windowTitles[i] = BFS.Window.GetText(windowHandles[i]);
		}
		
		// Remove the empty window titles and add the monitor ID for each one
		string[] windowTitlesNonEmpty = new string[windowTitles.Length];
		for (int i = 0; i < windowHandles.Length; i++)
		{
			if (windowTitles[i].Length > 0)
			{
				windowTitlesNonEmpty[i] = windowTitles[i] + " :" + BFS.Monitor.GetMonitorIDByWindow(windowHandles[i]).ToString();	
			}
		}
		
		// Prompt the user to select one
		string selectedWindowTitle = BFS.Dialog.GetUserInputListViewWithFilter("Select the window to focus...", windowTitlesNonEmpty);
		
		// Strip the monitor ID from the selected window title
		selectedWindowTitle = Regex.Replace(selectedWindowTitle, @"\s:\d+$", string.Empty);
		
		// Move the window to the current monitor and give it focus
		int selectedWindowIndex = Array.IndexOf(windowTitles, selectedWindowTitle);
		if (selectedWindowIndex >= 0)
		{
			BFS.Window.MoveToMonitor(currentMonitorID, windowHandles[selectedWindowIndex]);
			BFS.Window.Focus(windowHandles[selectedWindowIndex]);
		}
		else
		{
			BFS.Dialog.ShowMessageError("Something went wrong, can't find the selected window's index.");	
		}
	}
}