using System;

using GamecraftModdingAPI.Tasks;
using GamecraftModdingAPI.Engines;
using Svelto.ECS;

namespace GamecraftRPC.Engines
{
    class PlayerCountEngine : IApiEngine
    {
        public string Name => "GamecraftRPCPlayerCountGameEngine";

        public EntitiesDB entitiesDB { set; private get; }

		public bool isRemovable => false;

        private bool Ok = false;

        public void Dispose()
        {
            Ok = false;
            PresenceUtility.PlayerCount = 0;
        }

        public void Ready()
        {
            Ok = true;
            Scheduler.Schedule(new Repeatable(updatePlayerCount, () => { return Ok; }, delay: 5f));
        }

        private void updatePlayerCount()
        {
			uint count = GamecraftModdingAPI.Player.Count();
			if (count != PresenceUtility.PlayerCount && count > 0)
            {
				if (PresenceUtility.Lobby.HasValue && Plugin.DiscordRPC != null)
                {
                    Discord.LobbyManager lm = Plugin.DiscordRPC.GetLobbyManager();
                    Discord.LobbyTransaction lt = lm.GetLobbyUpdateTransaction(PresenceUtility.Lobby.Value.Id);
                    lt.SetCapacity(count * 2);
					lm.UpdateLobby(PresenceUtility.Lobby.Value.Id, lt, CallbackUtility.NobodyCares);
                }
                PresenceUtility.PlayerCount = count;
                PresenceUtility.Activity.Party.Size.CurrentSize = (int)count;
				PresenceUtility.Activity.Party.Size.MaxSize = (int)count * 2;
                Plugin.SetDiscordActivity(debug: "PlayerCountEngine-updatePlayerCount");
#if DEBUG
                GamecraftModdingAPI.Utility.Logging.MetaLog($"Updated Player Count: {count}");
#endif
            }
        }
    }
}