using System;
using System.Drawing;

// The 'windowHandle' parameter will contain the window handle for the:
//   - Active window when run by hotkey
//   - Window Location target when run by a Window Location rule
//   - TitleBar Button owner when run by a TitleBar Button
//   - Jump List owner when run from a Taskbar Jump List
//   - Currently focused window if none of these match
public static class DisplayFusionFunction
{
	public static void Run(IntPtr windowHandle)
	{
		//get the bounds of the current window
		Rectangle windowBounds = BFS.Window.GetBounds(windowHandle);
		
		//get the bounds of the current monitor
		Rectangle monitorBounds = BFS.Monitor.GetMonitorWorkAreaByWindow(windowHandle);
		
		//if the window is maximized, unmaximize it before resizing
		if(BFS.Window.IsMaximized(windowHandle))
			BFS.Window.Restore(windowHandle);
		
		//if the window is close in size to 50%, size the window to 70%
		//otherwise, size the window to 50%
		if(IsWithin(windowBounds.Width, (int)(monitorBounds.Width * 0.3f), 10))
			BFS.Window.SetSizeAndLocation(windowHandle, monitorBounds.Left, monitorBounds.Top, (int)(monitorBounds.Width * 0.5f), monitorBounds.Height);
		else if(IsWithin(windowBounds.Width, (int)(monitorBounds.Width * 0.5f), 10))
			BFS.Window.SetSizeAndLocation(windowHandle, monitorBounds.Left, monitorBounds.Top, (int)(monitorBounds.Width * 0.7f), monitorBounds.Height);
		else
			BFS.Window.SetSizeAndLocation(windowHandle, monitorBounds.Left, monitorBounds.Top, (int)(monitorBounds.Width * 0.3f), monitorBounds.Height);
	}
	
	//this function returns true if a value is close to another value
	private static bool IsWithin(int value, int target, int threshold)
	{
		return (value == target) || ((value >= target - threshold) && (value <= target + threshold));
	}
}