maui-linux/Services/DeviceInfoService.cs

using System;
using System.IO;
using Microsoft.Maui.Devices;

namespace Microsoft.Maui.Platform.Linux.Services;

public class DeviceInfoService : IDeviceInfo
{
	private static readonly Lazy<DeviceInfoService> _instance = new Lazy<DeviceInfoService>(() => new DeviceInfoService());

	private string? _model;

	private string? _manufacturer;

	private string? _name;

	private string? _versionString;

	public static DeviceInfoService Instance => _instance.Value;

	public string Model => _model ?? "Linux Desktop";

	public string Manufacturer => _manufacturer ?? "Unknown";

	public string Name => _name ?? Environment.MachineName;

	public string VersionString => _versionString ?? Environment.OSVersion.VersionString;

	public Version Version
	{
		get
		{
			try
			{
				if (System.Version.TryParse(Environment.OSVersion.Version.ToString(), out Version result))
				{
					return result;
				}
			}
			catch
			{
			}
			return new Version(1, 0);
		}
	}

	public DevicePlatform Platform => DevicePlatform.Create("Linux");

	public DeviceIdiom Idiom => DeviceIdiom.Desktop;

	public DeviceType DeviceType => (DeviceType)1;

	public DeviceInfoService()
	{
		LoadDeviceInfo();
	}

	private void LoadDeviceInfo()
	{
		try
		{
			if (File.Exists("/sys/class/dmi/id/product_name"))
			{
				_model = File.ReadAllText("/sys/class/dmi/id/product_name").Trim();
			}
			if (File.Exists("/sys/class/dmi/id/sys_vendor"))
			{
				_manufacturer = File.ReadAllText("/sys/class/dmi/id/sys_vendor").Trim();
			}
			_name = Environment.MachineName;
			_versionString = Environment.OSVersion.VersionString;
		}
		catch
		{
			if (_model == null)
			{
				_model = "Linux Desktop";
			}
			if (_manufacturer == null)
			{
				_manufacturer = "Unknown";
			}
			if (_name == null)
			{
				_name = "localhost";
			}
			if (_versionString == null)
			{
				_versionString = "Linux";
			}
		}
	}
}