feat: linux support

#if OS_LINUX

using System.Diagnostics;

namespace ControllerSlidePresenter.InputSender;

public class LinuxInputSender : IInputSender {

	public void NextSlide() {

	private const string PageUp = "0xff55";

	private const string PageDown = "0xff56";

	public void NextSlide() {

		SendKeys(PageDown);

	}

	public void PreviousSlide() {

		SendKeys(PageUp);

	}

	private static void SendKeys(string keycode) {

		Process proc = new() {

			StartInfo = {

				FileName = "xdotool",

				Arguments = $"key {keycode}",

				UseShellExecute = false,

				RedirectStandardError = false,

				RedirectStandardInput = false,

				RedirectStandardOutput = false

			}

		};

		proc.Start();

	}

}

#endif

 No newline at end of file

#if OS_LINUX

using System.Diagnostics;

using System.Runtime.InteropServices;

namespace ControllerSlidePresenter;

public static class Linux {

	public static bool CanRun() {

		if (getuid() != 0) {

			Console.WriteLine("On Linux you need tu run as 'sudo'");

			return false;

		}

		if (!IsXdoToolInstalled())

			return false;

		return true;

	}

	private static bool IsXdoToolInstalled() {

		string result = RunShellCommand("which xdotool");

		if (!string.IsNullOrEmpty(result))

			return true;

		Console.WriteLine("xdotool is not installed.");

		return false;

	}

	private static string RunShellCommand(string command) {

		try {

			ProcessStartInfo procStartInfo = new("bash", "-c \"" + command + "\"") {

				RedirectStandardOutput = true,

				UseShellExecute = false,

				CreateNoWindow = true,

			};

			using Process process = new();

			process.StartInfo = procStartInfo;

			process.Start();

			string result = process.StandardOutput.ReadToEnd();

			process.WaitForExit();

			return result.Trim();

		}

		catch (Exception ex) {

			Console.WriteLine("Error: " + ex.Message);

			return string.Empty;

		}

	}

	[DllImport("libc")]

	private static extern uint getuid();

}

#endif

namespace ControllerSlidePresenter {

	internal abstract class Program {

		private static async Task Main() {

#if OS_LINUX

			if (!Linux.CanRun())

				return;

#endif

			IGamepadReader? reader = ControllerSelector.GetReader();

			if (reader == null) {

				Console.WriteLine("Invalid Controller Selected.");