using System.Collections.Generic;
using System.Linq;
using System.Text;
using Base;

namespace Model
{
	public static class Game
	{
		private static HashSet<Disposer> disposers;

		private static EntityEventManager entityEventManager;

		public static TPoller Poller { get; } = new TPoller();

		private static Scene scene;

		public static Scene Scene
		{
			get
			{
				if (scene == null)
				{
					scene = new Scene();
#if SERVER
					scene.AddComponent<EventComponent>();
#else
					scene.AddComponent<EventComponent>();
#endif
					scene.AddComponent<TimerComponent>();
				}
				return scene;
			}
		}

		public static HashSet<Disposer> Disposers
		{
			get
			{
				if (disposers == null)
				{
					disposers = new HashSet<Disposer>();
				}
				return disposers;
			}
		}

		public static void CloseScene()
		{
			scene.Dispose();
			scene = null;
		}

		public static void ClearDisposers()
		{
			foreach (Disposer disposer in Disposers)
			{
				disposer.Dispose();
			}
			disposers.Clear();
			disposers = null;
		}

		public static EntityEventManager EntityEventManager
		{
			get
			{
				if (entityEventManager == null)
				{
					entityEventManager = new EntityEventManager();
				}
				return entityEventManager;
			}
			set
			{
				entityEventManager = value;
			}
		}

		public static string DisposerInfo()
		{
			var info = new Dictionary<string, int>();
			foreach (Disposer disposer in Disposers)
			{
				if (info.ContainsKey(disposer.GetType().Name))
				{
					info[disposer.GetType().Name] += 1;
				}
				else
				{
					info[disposer.GetType().Name] = 1;
				}
			}
			info = info.OrderByDescending(s => s.Value).ToDictionary(p => p.Key, p => p.Value);
			StringBuilder sb = new StringBuilder();
			sb.Append("\r\n");
			foreach (string key in info.Keys)
			{
				sb.Append($"{info[key],10} {key}\r\n");
			}

			return sb.ToString();
		}
	}
}