using System;
using System.IO;
using System.Linq;
using System.Reflection;

namespace ScreenConnect;

public static class EnvironmentInfo
{
	private static EnvironmentFlags current;

	public static EnvironmentFlags Current
	{
		get
		{
			if (current == EnvironmentFlags.UnknownRuntime)
			{
				current = GetCurrent();
			}
			return current;
		}
	}

	private static EnvironmentFlags GetCurrent()
	{
		if (Environment.GetEnvironmentVariable("RoleRoot") != null || (from _ in AppDomain.CurrentDomain.GetAssemblies()
			where _.GetName().Name == "ScreenConnect.Cloud"
			select _).Any())
		{
			return EnvironmentFlags.FullMicrosoftClr | EnvironmentFlags.FullWindows | EnvironmentFlags.AzureCloud;
		}
		if ((object)Type.GetType("Mono.Runtime") == null)
		{
			return EnvironmentFlags.FullMicrosoftClr | EnvironmentFlags.FullWindows;
		}
		if (Directory.Exists("/System/Library"))
		{
			return EnvironmentFlags.Mono | EnvironmentFlags.OSX;
		}
		return EnvironmentFlags.Mono | EnvironmentFlags.Linux;
	}
}