using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using BITKit;
using BITKit.Entities;
using BITKit.Mod;
using BITKit.UX;
using Cysharp.Threading.Tasks;
using Net.BITKit.Localization;
using Project.B.Item;
using Project.B.Player;
using Project.B.UX;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.UIElements;
using Object = UnityEngine.Object;

namespace Net.Project.B.UX
{
    public class UXItemInspector : UIToolKitPanel, IUXItemInspector
    {
        private readonly IEntitiesService _entitiesService;
        private readonly IWrapper<PlayerSettings> _playerSettings;
        private readonly ILocalizationService _localizationService;
        protected override string DocumentPath => "ui_item_inspector";
        public override bool AllowCursor => true;

        private readonly IUXKeyMap<InputAction> _uxKeyMap;

        private Camera _rendererCamera;

        private UniTaskCompletionSource _closeSource;

        private readonly Dictionary<string, ScriptableItem> _scriptableItems;

        public UXItemInspector(IUXService uxService, IUXKeyMap<InputAction> uxKeyMap, ILocalizationService localizationService, IWrapper<PlayerSettings> playerSettings, IEntitiesService entitiesService) : base(uxService)
        {
            _uxKeyMap = uxKeyMap;
            _localizationService = localizationService;
            _playerSettings = playerSettings;
            _entitiesService = entitiesService;

            OnInitiated += Initiated;

            _scriptableItems = _entitiesService.QueryComponents<ScriptableItem>().ToArray().ToDictionary(x => x.name);
        }

        private void Initiated()
        {
            var dropdown = RootVisualElement.Get<DropdownField>();

            if (dropdown is not null)
            {
                dropdown.choices.Clear();
                {
                    foreach (var lang in Enum.GetValues(typeof(Lang)).OfType<Lang>())
                    {
                        var code = lang.GetType().GetMember(lang.ToString())[0].GetCustomAttribute<DescriptionAttribute>().Description;
                    
                        dropdown.choices.Add(code);
                    }
                }
                dropdown.value = _playerSettings.Value.Language;

                dropdown.RegisterValueChangedCallback(x =>
                {
                    var label = RootVisualElement.Get<Label>();

                    if (label.userData is string code)
                    {
                        label.text = _localizationService.GetLocalizedString(code, dropdown.value);
                    }
                });
            }
        
        }

        public async void Inspect(IRuntimeItem runtimeItem)
        {
            if (DictionaryReferenceScriptableObject.Dictionary.TryGetValue(runtimeItem.ScriptableId, out var address) is
                false) return;

            var scriptableItem = _scriptableItems[address];

            var dropdown = RootVisualElement.Get<DropdownField>();
            
            RootVisualElement.Get<VisualElement>().SetActive(true);

            RootVisualElement.Get<VisualElement>().style.backgroundImage =
                new(scriptableItem.RectangleIcon ? scriptableItem.RectangleIcon : scriptableItem.Icon);

            RootVisualElement.Get<Label>().userData = scriptableItem.Name;

            RootVisualElement.Get<Label>().text =_localizationService.GetLocalizedString( scriptableItem.Name,dropdown.value);
            RootVisualElement.Get<Label>(1).text = _localizationService.GetLocalizedString(scriptableItem.Description,dropdown.value);

            UXService.Entry(this);


            if (!scriptableItem.Model) return;

            var rot = Vector3.zero;
            
            _closeSource?.TrySetCanceled();
            _closeSource = new();

            var image =   RootVisualElement.Get<VisualElement>();

            var rendererTexture = new RenderTexture(Screen.width/2,Screen.height/2, 32);
            
            image.style.backgroundImage = Background.FromRenderTexture(rendererTexture);

            var cameraObject = new GameObject();
            _rendererCamera = cameraObject.AddComponent<Camera>();
            _rendererCamera.targetTexture = rendererTexture;
            _rendererCamera.backgroundColor = Color.clear;
            _rendererCamera.nearClipPlane = 0.01F;

            _rendererCamera.cullingMask = 32;

                _rendererCamera.clearFlags=CameraClearFlags.SolidColor;
            
            cameraObject.transform.position = Vector3.zero;
            cameraObject.transform.rotation=Quaternion.identity;

            var inspectModel =new GameObject().transform;
            
            cameraObject.transform.parent = inspectModel;
            
            inspectModel.position = Vector3.zero;
            inspectModel = Object.Instantiate(scriptableItem.Model,inspectModel);
            var bounds = new Bounds();

            var isDragging=false;
            
            foreach (var x in inspectModel.GetComponentsInChildren<Renderer>())
            {
                x.gameObject.layer = 5;
                bounds.Encapsulate(x.bounds);
            }
            
            var length = bounds.size.GetLength() * 2;
            
            image.RegisterCallback<WheelEvent>(OnWheelEvent);
            image.RegisterCallback<PointerDownEvent>(OnPointerDown);
            image.RegisterCallback<PointerUpEvent>(OnPointerUp);
            image.RegisterCallback<PointerMoveEvent>(OnPointerMove);

            inspectModel.position = new Vector3(0, -bounds.center.y, 0);

            inspectModel = inspectModel.parent;

            cameraObject.transform.localPosition = Vector3.back * bounds.size.GetLength() * 2;

            await _closeSource.Task;
            
            RootVisualElement.Get<VisualElement>().SetActive(false);
            
            image.UnregisterCallback<WheelEvent>(OnWheelEvent);
            image.UnregisterCallback<PointerDownEvent>(OnPointerDown);
            image.UnregisterCallback<PointerUpEvent>(OnPointerUp);
            image.UnregisterCallback<PointerMoveEvent>(OnPointerMove);
            
            Object.Destroy(cameraObject);
            Object.Destroy(inspectModel.gameObject);
            Object.Destroy(rendererTexture);
            return;
   
            void OnWheelEvent(WheelEvent evt)
            {
                length += evt.delta.y*Time.deltaTime;
                Update();
            }
            void OnPointerDown(PointerDownEvent evt)
            {
                isDragging = true;
            }

            void OnPointerUp(PointerUpEvent evt)
            {
                isDragging = false;
            }
            void OnPointerMove(PointerMoveEvent evt)
            {
                if(isDragging is false)return;
                rot += evt.deltaPosition;
                Update();
            }
            void Update()
            {
                
                var newRot = Quaternion.Euler(rot.y, rot.x, 0);
                
                cameraObject.transform.localRotation= newRot;

                cameraObject.transform.localPosition = newRot * Vector3.back * length;
            }
        }

   


        protected override void OnPanelEntry()
        {
            base.OnPanelEntry();
            InputActionGroup.RegisterCallback(_uxKeyMap.CancelKey, OnReturn);
            InputActionGroup.RegisterCallback(_uxKeyMap.InventoryKey, OnInventory);
        }

        private void OnInventory(InputAction.CallbackContext obj)
        {
            if(obj.performed is false)return;
            UXService.Entry<IUXInventory>();
        }
        private void OnReturn(InputAction.CallbackContext obj)
        {
            if(obj.performed is false)return;
            UXService.Entry<IUXHud>();
        }
        protected override void OnPanelExit()
        {
            base.OnPanelExit();
            InputActionGroup.UnRegisterCallback(_uxKeyMap.CancelKey, OnReturn);
            InputActionGroup.UnRegisterCallback(_uxKeyMap.InventoryKey, OnInventory);
            
            _closeSource?.TrySetResult();
        }
    }
}