using System;
using TrackerBridge;

namespace GazeWebSocketServer
{
    public class Program
    {
        private static GazeServer gazeServer;

        public static void Main(string[] args)
        {
            ConfigurationData.InitializeUnexistingWithDefaults();
            ConfigurationData config = ConfigurationData.ParseToObject();

            IBridgeTracker tracker;
            if (args.Length > 0 && args[0] == "-d")
            {
                tracker = new FakeTracker(600);
            }
            else
            {
                tracker = new TobiiEyeTracker(config.TrackerSerialNumber);
            }

            tracker.ConnectionEvent += OnConnectionEstablished;
            tracker.ConnectionTimeout += OnConnectionTimeout;
            tracker.GazeDataAvailable += OnGazeDataAvailable;
            tracker.Connect();

            gazeServer = new GazeServer(config.WebSocketPort, config.WebSocketEndpoint);
            gazeServer.Start();
            Console.ReadLine();
        }

        

        private static void OnGazeDataAvailable(GazeData data, Object sender)
        {
            if (gazeServer != null && gazeServer.isRunning)
            {
                gazeServer.Publish(data);
            }
        }

        private static void OnConnectionTimeout(IBridgeTracker sender)
        {
            Console.WriteLine("Timeout while searching for trackers.");
        }

        private static void OnConnectionEstablished(IBridgeTracker sender)
        {
            Console.WriteLine($"Tracker {sender.SerialNumber} connected.");
            ConfigurationData config = ConfigurationData.ParseToObject();
            sender.TrackingFrequency = config.TrackerFrequency;
            sender.OutputFrequency = config.OutputFrequency;
        }
    }
}