using System;

using RobocraftX.Common;
using RobocraftX.Common.Input;
using RobocraftX.Players;
using Svelto.ECS;

using TechbloxModdingAPI.Utility;
using TechbloxModdingAPI.Engines;

namespace TechbloxModdingAPI.Input
{
	public class FakeInputEngine : IApiEngine
	{
		public string Name { get; } = "TechbloxModdingAPIFakeInputEngine";

		public EntitiesDB entitiesDB { set; private get; }

		public bool isRemovable => false;

		public bool IsReady = false;

		internal ActionInput _localInputCache;

		public void Dispose()
		{
			IsReady = false;
		}

		public void Ready()
		{
			IsReady = true;
		}

		public bool SendCustomInput(LocalCosmeticInputEntityComponent input)
		{
			EGID egid = CommonExclusiveGroups.GameStateEGID;
			if (entitiesDB.Exists<LocalCosmeticInputEntityComponent>(egid))
			{
				ref LocalCosmeticInputEntityComponent ies = ref entitiesDB.QueryEntity<LocalCosmeticInputEntityComponent>(egid);
				ies = input;
				return true;
			}
			else return false;
		}

		public bool SendCustomPlayerInput(LocalPlayerInputEntityStruct input, uint playerID, bool remote = false)
		{
			EGID egid = new EGID(playerID, remote ? InputExclusiveGroups.RemotePlayers : InputExclusiveGroups.LocalPlayers);
			if (entitiesDB.Exists<LocalPlayerInputEntityStruct>(egid))
			{
				ref LocalPlayerInputEntityStruct ies = ref entitiesDB.QueryEntity<LocalPlayerInputEntityStruct>(egid);
				ies = input;
				return true;
			}
			else return false;
		}

        public LocalCosmeticInputEntityComponent GetInput()
        {
	        EGID egid = CommonExclusiveGroups.GameStateEGID;
	        if (entitiesDB.Exists<LocalCosmeticInputEntityComponent>(egid))
	        {
		        return entitiesDB.QueryEntity<LocalCosmeticInputEntityComponent>(egid);
	        }
	        else return default(LocalCosmeticInputEntityComponent);
        }

        public LocalPlayerInputEntityStruct GetPlayerInput(uint playerID, bool remote = false)
        {
	        EGID egid = new EGID(playerID, remote ? InputExclusiveGroups.RemotePlayers : InputExclusiveGroups.LocalPlayers);
	        if (entitiesDB.Exists<LocalPlayerInputEntityStruct>(egid))
	        {
		        return entitiesDB.QueryEntity<LocalPlayerInputEntityStruct>(egid);
	        }
	        else return default;
        }

		public ref LocalCosmeticInputEntityComponent GetInputRef()
		{
			EGID egid = CommonExclusiveGroups.GameStateEGID;
            return ref entitiesDB.QueryEntity<LocalCosmeticInputEntityComponent>(egid);
        }

		public ref LocalPlayerInputEntityStruct GetPlayerInputRef(uint playerID, bool remote = false)
		{
			EGID egid = new EGID(playerID, remote ? InputExclusiveGroups.RemotePlayers : InputExclusiveGroups.LocalPlayers);
			return ref entitiesDB.QueryEntity<LocalPlayerInputEntityStruct>(egid);
		}

		internal void HandleCustomInput()
		{
			if (!LocalPlayerIDUtility.DoesLocalPlayerExist(entitiesDB))
				return;
			GetPlayerInputRef(GetLocalPlayerID()).actionMask |= _localInputCache;
			_localInputCache = default;
		}

		public uint GetLocalPlayerID()
        {
            return LocalPlayerIDUtility.GetLocalPlayerID(entitiesDB);
        }
	}
}