using System;
using System.Threading.Tasks;
using Aurora.Proto.Sync;
using Aurora.Proto.General;
using Aurora.Services.Player;
using Aurora;
using Autofac;

namespace Aurora.RemoteImpl
{
    public class RemoteSyncServiceImpl : RemoteSyncService.RemoteSyncServiceBase
    {
        /// <summary>
        /// RPC for getting a stream of media syncs
        /// </summary>
        /// <param name="request"></param>
        /// <param name="responseStream"></param>
        /// <param name="context"></param>
        /// <returns></returns>
        public override async Task GetMediaSync(Empty request,
            Grpc.Core.IServerStreamWriter<Sync> responseStream,
            Grpc.Core.ServerCallContext context)
        {
            using (var scope = App.Container.BeginLifetimeScope())
            {
                IPlayer player = scope.Resolve<IPlayer>();
                bool continueSync = true;
                string currentId = player.CurrentMedia.Id;
                MediaChangedEventHandler mediaChanged = (sender, e) =>
                {
                    if (e.NewId != currentId)
                    {
                        continueSync = false;
                    }
                };

                player.MediaChanged += mediaChanged;

                while (continueSync)
                {
                    float length = player.CurrentMediaLength;

                    Sync sync = new Sync()
                    {
                        TrackPosition = player.CurrentMediaPosition,
                        ServerTimeTicks = Utils.TimeUtils.GetNetworkTime().DateTime.Ticks
                    };
                    await responseStream.WriteAsync(sync);
                    Console.WriteLine("Sent Sync");
                    await Task.Delay(5000);
                }
            }

        }
    }
}