using System;
using System.Collections.Generic;
using sharp.json.network;
using sharp.trading;
using sharp.tradebot;
using System.IO;
using System.Threading;
using sharp.json;
using sharp.tradebot.rpc;
using sharp.extensions;
using sharp.trading.bittrex;
namespace TradeBot
{
	public static class ServiceDaemon
	{
		public static bool daemonShouldExit = false;
		public static bool ShouldExit()
		{
			return daemonShouldExit;
		}

		public static BotManager botManager;

		public static void Run(String[] args){
			ArgumentReader ar = new ArgumentReader(args);

			while (ar.MoveNext()){
				switch (ar.Current)
				{
					case "--test":
						TradingEnvironment.DataDirectory = "sharp.trading.data";
						TradeBotApplication.jsonPort = 33554;
						break;
					case "--port":
						ar.MoveNext();
						TradeBotApplication.jsonPort = int.Parse(ar.Current);
						return;
					default:
						throw new ArgumentException(String.Format("Unexpected Argument: {0}", ar.Current));
				}
			}

			if (File.Exists(Path.Combine(TradingEnvironment.DataDirectory,"connector.json"))){
				JSON connector = JSON.ReadFrom(Path.Combine(TradingEnvironment.DataDirectory, "connector.json"));
				if (connector["class"] != null){
					Type t = Type.GetType(connector["class"].String);
					TradingConnection c = (TradingConnection)Activator.CreateInstance(t, connector["arguments"].To<string[]>());
					TradingEnvironment.DefaultConnection = c;
				}
			} else {
				TradingEnvironment.DefaultConnection = new BittrexConnector();
			}




			JSONTcpServer jsonServer = new JSONTcpServer(TradeBotApplication.jsonPort);
			jsonServer.ClientConnected = JSONClientConnected;
			jsonServer.Start();

			botManager = new BotManager(TradingEnvironment.DataDirectory);
			botManager.LoadAllBots();

			foreach (TradingBotInstance bot in botManager.RegisteredBots){
				bot.Prepare();
			}

			while (!ShouldExit())
			{
				Thread.Sleep(100);
			}

			Console.WriteLine("Servicedaemon shutting down");

			botManager.BotEnvironment.Stop();

			foreach (TradingBotInstance bot in botManager.RegisteredBots){
				bot.Unprepare();
			}
			foreach (TradingBotInstance bot in botManager.RegisteredBots){
				bot.Unload();
			}

			botManager.Save();
			jsonServer.Stop();
		}

		private static void JSONClientConnected(JSONTcpClient client)
		{
			try
			{
				while (true)
				{
					JSON jrequest = client.Receive();
					RPCRequest request = jrequest.To<RPCRequest>();
					RPCResponse response = new RPCResponse();

					if (request.Command.Equals("disconnect"))
					{
						break;
					}

					switch (request.Command)
					{
						case "newbot":
							Console.WriteLine("request to create new bot: {0} from {1}", request.Arguments[0], request.Arguments[1]);
							response.Message = "Bot created";
							response.Success = true;
							break;
						case "shutdown":
							response.Message = "Daemon shutting down";
							response.Success = true;
							daemonShouldExit = true;
							break;

						case "register":
							try
							{
								botManager.RegisterBot(request.Arguments[0],request.Arguments[1]);

								Console.WriteLine(botManager.ToString());

								response.Message = "registered.";
								response.Success = true;

							}
							catch (Exception e)
							{
								response.Message = String.Format("Exception: {0}", e);
								response.Success = false;
							}
							break;
						case "unregister":
							try
							{
								botManager.UnregisterBot(Guid.Parse(request.Arguments[0]));

								response.Message = "unregistered.";
								response.Success = true;

							}
							catch (Exception e)
							{
								response.Message = String.Format("Exception: {0}", e);
								response.Success = false;
							}
							break;

						case "load":
							try
							{
								botManager.LoadBotAndPrepare(Guid.Parse(request.Arguments[0]));

								response.Message = "loaded.";
								response.Success = true;

							}
							catch (Exception e)
							{
								response.Message = String.Format("Exception: {0}", e);
								response.Success = false;
							}
							break;
						case "unload":
							try
							{
								botManager.UnloadBot(Guid.Parse(request.Arguments[0]));

								response.Message = "unloaded.";
								response.Success = true;

							}
							catch (Exception e)
							{
								response.Message = String.Format("Exception: {0}", e);
								response.Success = false;
							}
							break;
						case "reload":
							try
							{
								botManager.UnloadBot(Guid.Parse(request.Arguments[0]));
								botManager.LoadBotAndPrepare(Guid.Parse(request.Arguments[0]));

								response.Message = "reloaded.";
								response.Success = true;

							}
							catch (Exception e)
							{
								response.Message = String.Format("Exception: {0}", e);
								response.Success = false;
							}
							break;
						default:
							response.Success = false;
							response.Message = string.Format("Unknown command: {0}", request.Command);
							break;
					}
					client.Send(JSON.From(response));
				}
			}
			catch (Exception e)
			{
				Console.WriteLine("JSONClientConnection: Exception: " + e.ToString());
			}
			client.Close();
		}


	}
}