/// <summary>
///     Writes theme CSS and JS assets to the output directory.
/// </summary>
public sealed class ThemeAssetPhase(ILogger<ThemeAssetPhase> logger) : IBuildPhase
{
    /// <inheritdoc/>
    public string Name => "ThemeAssets";
    /// <inheritdoc/>
    public int Order => 1150;

    /// <inheritdoc/>
    public Task ExecuteAsync(BuildContext context, CancellationToken ct = default)
    {
        IFileSystem fs = context.FileSystem;
        string themeDir = fs.Path.Combine(context.OutputDirectory, "_theme");
        // Write embedded CSS
        string cssDir = fs.Path.Combine(themeDir, "css");
        fs.Directory.CreateDirectory(cssDir);
        fs.File.WriteAllText(fs.Path.Combine(cssDir, "main.css"), EmbeddedThemeProvider.GetCss());
        // Write embedded JS
        string jsDir = fs.Path.Combine(themeDir, "js");
        fs.Directory.CreateDirectory(jsDir);
        fs.File.WriteAllText(fs.Path.Combine(jsDir, "main.js"), EmbeddedThemeProvider.GetJs());
        logger.LogInformation("Wrote theme assets to {Path}", themeDir);
        return Task.CompletedTask;
    }
}