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);
                tracker.GazeDataAvailable += OnGazeDataAvailable; //TODO: Extend interface usage
                //tracker.GazeDataProcessor.OutputFrequency = config.OutputFrequency;
            }
            else
            {
                TobiiEyeTracker tobiiEyeTracker = new TobiiEyeTracker(config.TrackerSerialNumber);
                tobiiEyeTracker.ConnectionEvent += OnConnectionEstablished;
                tobiiEyeTracker.ConnectionTimeout += OnConnectionTimeout;
                tobiiEyeTracker.GazeDataAvailable += OnGazeDataAvailable;
                tobiiEyeTracker.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.SetTrackingFrequency(config.TrackerFrequency);
        }
    }
}