quantum-space-buddies/EpicRerouter/ModSide/Interop.cs

using HarmonyLib;
using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using UnityEngine;
using Debug = UnityEngine.Debug;

namespace EpicRerouter.ModSide
{
	public static class Interop
	{
		public static EntitlementsManager.AsyncOwnershipStatus OwnershipStatus = EntitlementsManager.AsyncOwnershipStatus.NotReady;

		public static void Go()
		{
			if (typeof(EpicPlatformManager).GetField("_platformInterface", BindingFlags.NonPublic | BindingFlags.Instance) == null)
			{
				Log("not epic. don't reroute");
				return;
			}

			Log("go");

			Patches.Apply();

			var processPath = Path.Combine(
				Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)!,
				"EpicRerouter.exe"
			);
			Log($"process path = {processPath}");
			var gamePath = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(typeof(EpicPlatformManager).Assembly.Location)!, ".."));
			Log($"game path = {gamePath}");
			var workingDirectory = Path.Combine(gamePath, "Plugins", "x86_64");
			Log($"working dir = {workingDirectory}");
			var args = new[]
			{
				Application.productName,
				Application.version,
				Path.Combine(gamePath, "Managed")
			};
			Log($"args = {args.Join()}");
			var gameArgs = Environment.GetCommandLineArgs();
			Log($"game args = {gameArgs.Join()}");
			var process = Process.Start(new ProcessStartInfo
			{
				FileName = processPath,
				WorkingDirectory = workingDirectory,
				Arguments = args
					.Concat(gameArgs)
					.Join(x => $"\"{x}\"", " "),

				UseShellExecute = false,
				CreateNoWindow = true,
				RedirectStandardOutput = true,
				RedirectStandardError = true
			});
			process!.WaitForExit();
			OwnershipStatus = (EntitlementsManager.AsyncOwnershipStatus)process.ExitCode;
			Log($"ownership status = {OwnershipStatus}");

			Log($"output:\n{process.StandardOutput.ReadToEnd()}");
			Log($"error:\n{process.StandardError.ReadToEnd()}");
		}

		public static void Log(object msg) => Debug.Log($"[EpicRerouter] {msg}");
	}
}