using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.InputSystem.Interactions;
using BITKit;
namespace BITKit.Entities
{
    public class EntityInteractive : EntityInputComponent
    {
        [Header(Constant.Header.Settings)]
        public float distance;
        public LayerMask layerMask;
        [Header(Constant.Header.Input)]
        public InputActionReference interactiveAction;
        InputActionGroup inputActionGroup = new();
        [Header(Constant.Header.InternalVariables)]
        ISelectable selected;
        IntervalUpdate cd = new(0.08f);
        public override void OnStart()
        {
            base.OnStart();
        }
        public override void OnSpawn()
        {
            base.OnSpawn();
            if (isLocalPlayer)
            {
                inputActionGroup.RegisterCallback(interactiveAction, OnInteractive);
            }
        }
        public override void OnDespawn()
        {
            base.OnDespawn();
            if (isLocalPlayer)
            {
                inputActionGroup.UnRegisterCallback(interactiveAction, OnInteractive);
            }
        }
        public override void OnUpdate(float deltaTime)
        {
            if (isLocalPlayer)
            {
                var ray = Camera.main.ScreenPointToRay(Mouse.current.position.ReadValue());
                if (Physics.Raycast(ray, out var raycastHit, distance, layerMask))
                {
                    if (raycastHit.transform.TryGetComponentAny<ISelectable>(out var _detected))
                    {
                        if (_detected == selected)
                        {

                        }
                        else
                        {
                            TryDeSelected();

                            Detected(_detected);

                        }
                    }
                    else
                    {
                        TryDeSelected();
                    }
                }
                else
                {
                    TryDeSelected();
                }
            }
        }
        void TryDeSelected()
        {
            if (selected is not null)
            {
                selected.SetSelectionState(SelectionState.None);
                foreach (var x in entity.GetCallbacks<ISelectableCallback>())
                {
                    x.OnInactive(selected);
                }
                selected = null;
            }
        }
        void Detected(ISelectable detected)
        {
            selected = detected;
            detected.SetSelectionState(SelectionState.Hover);
            foreach (var x in entity.GetCallbacks<ISelectableCallback>())
            {
                x.OnHover(selected);
            }
        }
        public override void OnInteractive(InputAction.CallbackContext context)
        {
            if (context.interaction is TapInteraction && context.performed)
            {
                var selected = this.selected;
                if (selected is not null)
                {
                    
                    if (selected is MonoBehaviour monoBehaviour)
                    {
                        if (monoBehaviour.TryGetComponentAny<IAction>(out var action))
                        {
                            action.Execute();
                        }
                        foreach (var x in entity.GetCallbacks<ISelectableCallback>())
                        {
                            x.OnActive(selected);
                        }
                    }
                }
            }
        }
    }
}