using System;
using System.IO;
using System.Net;
using System.Threading.Tasks;

namespace Director
{
    public class HumanCommunication
    {
        private static string call_for_humans_discord_webhook { get; set; }
        private static HumanCommunication _instance = null;
        private static readonly object createLock = new object();
        public static void Configure(string call_for_humans_discord_webhook)
        {
            lock (createLock)
            {
                if (_instance == null)
                {
                    _instance = new HumanCommunication(call_for_humans_discord_webhook);
                }
            }
        }
        public static HumanCommunication Instance
        {
            get
            {
                lock (createLock)
                {
                    if (_instance == null)
                    {
                        throw new NotInitializedException("Configure me first");
                    }
                }
                return _instance;
            }
        }
        private HumanCommunication(string discord_webhook)
        {
            HumanCommunication.call_for_humans_discord_webhook = discord_webhook;
        }
        public void Say(string message, LogLevel logLevel = LogLevel.Info)
        {
            Console.WriteLine($"[{DateTime.Now.ToLongTimeString()}] [{logLevel.ToString()}] {message}");

            if(logLevel >= LogLevel.Warning)
            {
                //Task.Run(() => forwardToDiscord(message, logLevel));
            }
        }
        public async void forwardToDiscord(string message, LogLevel logLevel)
        {
            var httpWebRequest = (HttpWebRequest)WebRequest.Create(call_for_humans_discord_webhook);
            httpWebRequest.ContentType = "application/json";
            httpWebRequest.Method = "POST";
            using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
            {
                streamWriter.Write($"{{\"content\":\"[{DateTime.Now.ToLongTimeString()}] [{logLevel.ToString()}] {message}\"}}");
            }
            httpWebRequest.GetResponseAsync();
        }
        public enum LogLevel
        {
            Trace, //development
            Verbose, 
            Info, //archival purposes, status checking, curiosity satisfaciton
            Warning, 
            Error, //it's going to go up, but look bad. The bar is (currently) low enough that this won't necessarily damage the brand, but for better creators it would.
            Showstopper //it's not going to go up
        }
    }
    public class NotInitializedException : Exception
    {
        public NotInitializedException(string message) : base(message) { }
    }
}