using System;
using System.Net;
using System.IO;
using System.Text;

namespace Roleplay_Flash_Server.assets
{
    class ASCII_ART
    {
        /*
         ** Thanks to http://artii.herokuapp.com
           */

        private const string generatorURL = "http://artii.herokuapp.com";
        private const string consolePrefix = "[assets->ASCII-ART.cs] ";
        private static HttpWebResponse webResponse;

        public static bool validateGenerator()
        {
            //Console.WriteLine(prefix + "Validating generator URL, awaiting results for web server {" + generatorURL + "}.");
            try
            {
                WebRequest request = WebRequest.Create(generatorURL);
                webResponse = (HttpWebResponse)request.GetResponse();

                if (webResponse == null || webResponse.StatusCode != HttpStatusCode.OK)
                {
                    Console.WriteLine(consolePrefix + "Failed validation, HTTP web server returned code {" + webResponse.StatusCode + "; " + webResponse.StatusDescription + "}");
                    return false;
                }
                webResponse.Close();
                return true;
            }
            catch(Exception)
            {
                Console.WriteLine(consolePrefix + "Uncaught exception received, possibly web server down {" + generatorURL + "}.");
                return false;
            }
        }

        public static string generate(string value, string font = "slant")
        {
            WebRequest request = WebRequest.Create(generatorURL + "/make?text=" + value + "&font=" + font);
            webResponse = (HttpWebResponse)request.GetResponse();
            if (webResponse != null || webResponse.StatusCode == HttpStatusCode.OK)
            {
                Stream receiveStream = webResponse.GetResponseStream();
                StreamReader readStream = null;

                if (webResponse.CharacterSet == null)
                {
                    readStream = new StreamReader(receiveStream);
                }
                else
                {
                    readStream = new StreamReader(receiveStream, Encoding.GetEncoding(webResponse.CharacterSet));
                }

                string data = readStream.ReadToEnd();
                webResponse.Close();
                return data;
            }
            return value;
        }
    }
}