using System;
using System.Collections;
using System.Collections.Generic;
using BITFALL.Entities.Armor;
using BITFALL.Player.Equip;
using BITFALL.Player.Movement;
using UnityEngine;
using UnityEngine.UIElements;
using UnityEngine.InputSystem;
using BITKit;
using BITKit.UX;
using BITKit.Entities;
using BITKit.Entities.Player;
using BITKit.SceneManagement;
using BITKit.Selection;
using BITKit.Steamwork;
using UnityEditor;
using UnityEngine.InputSystem.Interactions;

namespace BITFALL.UX
{
    public class UXHud : UIToolKitPanel
    {
        [Header(Constant.Header.Providers)]
        [SerializeReference, SubclassSelector] private ISceneService sceneService;
        [SerializeReference, SubclassSelector]  private IPlayerService playerService;
        [SerializeReference, SubclassSelector] private ISteamService steamService;

        [Header(Constant.Header.Components)]
        [SerializeField] private UXLabel seleableLabel;
        [SerializeField] private UXImage crosshairImage;
        [SerializeField] private UXImage crosshairParentImage;
        [SerializeField] private UXLabel playerNameLabel;
        [SerializeField] private UXImage playerAvatarImage;
        [SerializeField] private UXElement playerInfo;
        [SerializeField] private UXBar healthBar;
        [SerializeField] private UXBar lerpHealthBar;
        [SerializeField] private UXBar staminaBar;
        [SerializeField] private UXBar armorBar;
        
        [Header(Constant.Header.Input)]
        [SerializeField] private InputActionReference inventoryAction;
        [SerializeField] private InputActionReference returnAction;
    
        [Inject]
        private IHealth _health;
        [Inject]
        private IEntityMovement _entityMovement;
        [Inject]
        private IPlayerMovement _playerMovement;
        [Inject]
        private IEquipService _equipService;
        [Inject]
        private ISelector _selector;
        [Inject]
        private IArmor _armor;
        private float _currentHealthLerp;
        protected override void Awake()
        {
            base.Awake();
            seleableLabel.SetActive(false);
            inputActionGroup.RegisterCallback(returnAction, OnReturn);
            inputActionGroup.RegisterCallback(inventoryAction, OnInventory);

            sceneService.OnSceneLoaded += x=>Entry();
            
            playerService.OnPlayerInitialized += OnPlayerInitializedLocalPlayer;
        }

        private void OnDestroy()
        {
            playerService.OnPlayerInitialized -= OnPlayerInitializedLocalPlayer;
        }
        public void OnActive(ISelectable selectable)
        {
            seleableLabel.SetActive(false);
        }
        public void OnSelect(ISelectable selectable)
        {
            seleableLabel.SetActive(true);
            seleableLabel.Set(selectable.Transform.TryGetComponent<IDescription>(out var description)
                ? description.Name
                : "互动");
        }
        public void OnInactive(ISelectable selectable)
        {
            seleableLabel.SetActive(false);
        }
        private async void OnPlayerInitializedLocalPlayer(IEntity entity)
        {
            entity.Inject(this);
            
            
            _health.OnSetAlive += OnSetAlive;
            _health.OnSetHealthPoint += OnSetHP;
            
            _selector.OnActive += OnActive;
            _selector.OnInactive += OnInactive;
            _selector.OnSelected += OnSelect;
            
            _armor.OnArmorChanged += x => armorBar.Set(x);
            _armor.OnEquipArmor += x =>
            {
                armorBar.Set(_armor.Armor);
                armorBar.SetActive(true);
            };
            _armor.OnUnEquipArmor += x => armorBar.SetActive(false);
            
            if (steamService.IsInitialized)
            {
                playerNameLabel.Set(steamService.Name);
                var avatar = await steamService.GetAvatarAsync(cancellationToken);
                playerAvatarImage.SetTexture(avatar);
            }
            
            _equipService = entity.Get<IEquipService>();
            
            armorBar.SetActive(_armor.TryGetCurrentArmor(out _)); 
            
            OnSetHP(_health.HealthPoint);
            OnSetAlive(_health.IsAlive);
            
            OnInactive(null);
        }
        private void OnInventory(InputAction.CallbackContext context)
        {
            if(playerService.LocalPlayer is null) return;
            if(_health.IsAlive is false) return;
            if(context is {interaction:PressInteraction,performed:true})
                UXService.Entry<UXInventory>();
        }

        private void Update()
        {
            if (_health is not null)
            {
                _currentHealthLerp = Mathf.MoveTowards(_currentHealthLerp, _health.HealthPoint * 0.01f, Time.deltaTime * 5).Fix();
                _currentHealthLerp = Mathf.Clamp(_currentHealthLerp, 0, 1);
                lerpHealthBar.SetDirect(_currentHealthLerp,_health.HealthPoint.ToString());
                
                staminaBar.Set(_playerMovement.Stamina * 0.01f);
                
                staminaBar.visualElement.parent.SetActive(_playerMovement.Stamina is not 100);
            }
        }

        private void LateUpdate()
        {
            if (playerService.LocalPlayer is null) return;
            
            crosshairImage.SetPosition(_entityMovement.ViewCenter + _entityMovement.ViewRotation * Vector3.forward);
            
            if(_equipService is null) return;

            var currentCrosshairOpacity = crosshairParentImage.visualElement.style.opacity.value;
            crosshairParentImage.visualElement.style.opacity = Mathf.Lerp(currentCrosshairOpacity, _equipService.Zoom.Allow ? 0 : 1, Time.deltaTime * 5);
        }

        private static void OnReturn(InputAction.CallbackContext context)
        {
            if (context.JustPressed())
                UXService.Entry<UXMenu>();
        }

        private void OnSetAlive(bool alive)
        {
            if (alive is false)
            {
                Entry();
            }
            crosshairImage.SetActive(alive);
            crosshairParentImage.SetActive(alive);
            playerInfo.SetActive(alive);
        }

        private void OnSetHP(int hp)
        {
            healthBar.Set(Mathf.Clamp(hp,0,100) * 0.01f);
        }
    }
}