using System.IO;


namespace SimpleHttpServer
{
    public static class HttpBuilder
    {
        private static HttpResponse httpRsp_404 = null;
        private static HttpResponse httpRsp_500 = null;
        private static HttpResponse httpRsp_405 = null; 


        public static HttpResponse InternalServerError()
        {
            if (httpRsp_500 == null)
            {
                httpRsp_500 = new HttpResponse()
                {
                    ReasonPhrase = "InternalServerError",
                    StatusCode = "500",
                };

                string content = File.ReadAllText("../cfg/sog/httpsvr/Resources/Pages/500.html");
                if (! string.IsNullOrEmpty(content))
                {
                    httpRsp_500.ContentAsUTF8 = content;
                }
            }

            return httpRsp_500;
        }

        public static HttpResponse NotFound()
        {
            if (httpRsp_404 == null)
            {
                httpRsp_404 = new HttpResponse()
                {
                    ReasonPhrase = "NotFound",
                    StatusCode = "404",
                };

                string content = File.ReadAllText("../cfg/sog/httpsvr/Resources/Pages/404.html");
                if (! string.IsNullOrEmpty(content))
                {
                    httpRsp_404.ContentAsUTF8 = content;
                }
            }

            return httpRsp_404;
        }


        public static HttpResponse MethodNotAllowed()
        {
            if (httpRsp_405 == null)
            {
                httpRsp_405 = new HttpResponse { ReasonPhrase = "Method Not Allowed", StatusCode = "405" };
            }
            return httpRsp_405;
        }
}
}