/*******************************************************************************

 * File Name：  SoftwareInfoHelper.cs

 * Namespace:

 *

 * CreateTime: 2018/9/6 14:50

 * Author：  linkanyway

 * Description： SoftwareInfoHelper

 * Class Name： SoftwareInfoHelper

 *

 * Ver ChangeDate Author Description

 * ───────────────────────────────────

 * V0.01 2018/9/6 14:50 linkanyway draft

 *

 * Copyright (c) 2018 linkanyway

 * Description: Framework

 *

 *********************************************************************************/

 using System;

 using System.Reflection;

 using System.Runtime.CompilerServices;

 using System.Runtime.InteropServices;

 [assembly: InternalsVisibleTo("TestProject.Nirvana.Infrastructure")

 ]

 namespace Nirvana.Infrastructure.Runtime

 {

     /// <summary>

     /// SoftwareInfoHelper

     /// </summary>

     // ReSharper disable once UnusedMember.Global

     public static class SoftwareInfoHelper

     {

         /// <summary>

         /// Return correct .NET Core product name like ".NET Core 2.1.0" instead of ".NET Core 4.6.26515.07" returning by RuntimeInformation.FrameworkDescription

         /// </summary>

         /// <returns></returns>

         // ReSharper disable once UnusedMember.Global

         internal static string GetFrameworkDescription()

         {

             // ".NET Core 4.6.26515.07" => ".NET Core 2.1.0"

             // var parts = RuntimeInformation.FrameworkDescription.Split([' '], StringSplitOptions.RemoveEmptyEntries);

             var charSeparators = new[] {','};

             var parts = RuntimeInformation.FrameworkDescription.Split(charSeparators,

                 StringSplitOptions.RemoveEmptyEntries);

             var i = ;

             for (; i < parts.Length; i++)

             {

                 if (char.IsDigit(parts[i][]))

                 {

                     break;

                 }

             }

             var productName = string.Join("", parts, , i);

             return string.Join("", productName, " ", GetNetCoreVersion());

         }

         /// <summary>

         ///

         /// </summary>

         /// <returns></returns>

         internal static string GetNetCoreVersion()

         {

             var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

             var assemblyPath = assembly.CodeBase.Split(new[] {'/', '\\'}, StringSplitOptions.RemoveEmptyEntries);

             var netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

             if (netCoreAppIndex >  && netCoreAppIndex < assemblyPath.Length - )

                 return assemblyPath[netCoreAppIndex + ];

             return null;

         }

         /// <summary>

         ///

         /// </summary>

         /// <returns></returns>

         public static PlatformInformation GetPlatformInformation()

         {

             OSPlatform platform;

             if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))

                 platform = OSPlatform.Windows;

             if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))

                 platform = OSPlatform.Linux;

             if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))

                 platform = OSPlatform.OSX;

             return new PlatformInformation()

             {

                 Architecture = RuntimeInformation.OSArchitecture,

                 DotnetVersion = GetNetCoreVersion(),

                 Os = platform,

                 OsVersion = RuntimeInformation.OSDescription

             };

         }

     }

 }