using System.Reflection;
namespace Sbroenne.ExcelMcp.McpServer.Infrastructure;
/// <summary>
/// Checks for MCP Server updates and provides version information.
/// </summary>
public static class McpServerVersionChecker
{
/// <summary>
/// Checks for updates and returns the latest version if an update is available.
/// </summary>
/// <returns>Latest version string if update available, null otherwise.</returns>
public static async Task<string?> CheckForUpdateAsync(CancellationToken cancellationToken = default)
{
try
{
var currentVersion = GetCurrentVersion();
var latestVersion = await NuGetVersionChecker.GetLatestVersionAsync(cancellationToken);
if (latestVersion != null && CompareVersions(currentVersion, latestVersion) < 0)
{
return latestVersion;
}
return null;
}
catch (Exception)
{
return null;
}
}
/// <summary>
/// Gets the current version of the MCP Server.
/// </summary>
public static string GetCurrentVersion()
{
var assembly = Assembly.GetExecutingAssembly();
var informational = assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion;
// Strip git hash suffix (e.g., "1.2.0+abc123" -> "1.2.0")
return informational?.Split('+')[0] ?? assembly.GetName().Version?.ToString() ?? "0.0.0";
}
private static int CompareVersions(string current, string latest)
{
if (Version.TryParse(current, out var currentVer) && Version.TryParse(latest, out var latestVer))
return currentVer.CompareTo(latestVer);
return string.Compare(current, latest, StringComparison.Ordinal);
}
}
