namespace EnvelopeGenerator.ReceiverUI.Services;

/// <summary>
/// Provides application version for cache busting static assets.
/// Version is automatically incremented on each build via AssemblyVersion.
/// </summary>
public class AppVersionService
{
    /// <summary>
    /// Current application version (e.g., "1.0.0.0")
    /// </summary>
    public string Version { get; }

    public AppVersionService()
    {
        // Get version from assembly metadata
        Version = typeof(AppVersionService).Assembly.GetName().Version?.ToString() ?? "1.0.0.0";
    }

    /// <summary>
    /// Generates versioned URL for static assets (cache busting)
    /// </summary>
    /// <param name="path">Asset path (e.g., "css/envelope-viewer.css")</param>
    /// <returns>Versioned URL (e.g., "css/envelope-viewer.css?v=1.0.0.0")</returns>
    public string GetVersionedUrl(string path) => $"{path}?v={Version}";
}