using Tesses.WebServer;
using Scriban;
namespace Tesses.YouTubeDownloader2025Companion
{
    public class ReloadingScript(string path)
    {
        DateTime created=new DateTime(1970,1,1);
        Template? template;
        private string path = path;

        public string Render(object val)
        {
            Template? template;
            lock(this)
            {
                template = this.template;
                var cd = File.GetLastWriteTime(path);
                if(cd > created || this.template is null)
                {

                    template = Template.Parse(File.ReadAllText(path));
                    this.template = template;
                    created = cd;

                }
            }

            if(template is not null)
            {
                return template.Render(val);
            }
            throw new FileNotFoundException("Not found");
        }
    }
}