using System;
using System.Drawing;

public static class DisplayFusionFunction
{

	/**
	 * Toggle application window state (maximize, minimize) and start the application beforehand if necessary
	 * In this example it is toggling the windows store app "Newsflow" (RSS Reader)
	 * 
	 * Toggles between:
	 * - Application window maximized and focused
	 * - Application window minimized
	 */
	public static void Run(IntPtr windowHandle)
	{
		// Change this constants accordingly
		const string APP_WIN_TITLE = "Newsflow";	// Window title (part of the window title or full title)
		const string PROC_NAME = "*Newsflow*";		// keep the leading asterisk when changing
		const string PROC_PATH = @"shell:appsfolder\6958MaxN.Newsflow_5jrsa023thkzc!App";	// absolute path to the application executable

		if (windowHandle == IntPtr.Zero)
			return;

		uint primaryMonitorID = BFS.Monitor.GetPrimaryMonitorID();

		// Check if app is running
		if (AppIsRunning(PROC_NAME))
		{
			/**
			 * app is running
			 */
			uint appId = BFS.Application.GetAppIDByFile(PROC_NAME);
			IntPtr activeWindowHandle = BFS.Window.GetFocusedWindow();
			string activeWindowTitle = BFS.Window.GetText(activeWindowHandle);
			string currentWindowTitle = BFS.Window.GetText(windowHandle);

			// check if app is to minimize or maximize
			if (activeWindowTitle.Contains(APP_WIN_TITLE) || currentWindowTitle.Contains(APP_WIN_TITLE))
			{
				// minimize app window
				BFS.Window.Minimize(activeWindowHandle);
			} else
			{
				// maximize & focus app window
				IntPtr winHandle = BFS.Application.GetMainWindowByAppID(appId);

				BFS.Window.Maximize(winHandle);
				BFS.Window.Focus(winHandle);
			}
		} else
		{
			/**
			 * app not running
			 */
			// run app
			RunApplication(PROC_NAME, PROC_PATH);
			uint appId = BFS.Application.GetAppIDByFile(PROC_NAME);
			IntPtr winHandle = BFS.Application.GetMainWindowByAppID(appId);

			// maximize & focus app window
			BFS.Window.Maximize(winHandle);
			BFS.Window.Focus(winHandle);
		}
	}

	/**
	 * Check if application is running
	 */
	private static bool AppIsRunning(string processName)
	{
		return BFS.Application.IsAppRunningByFile(processName);
	}

	/**
	 * Run application if not running
	 */
	private static void RunApplication(string processName, string processFullPath)
	{
		bool isAppRunning = BFS.Application.IsAppRunningByFile(processName);
		if (!isAppRunning)
		{
			BFS.Application.Start(processFullPath, "");
		}
	}

}