using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using System;
using System.Linq;
using UnityEngine;
using UnityEngine.SceneManagement;
using EnglewoodLAB.UI;
using EnglewoodLAB.Command;
using EnglewoodLAB.Object;
using EnglewoodLAB.Constants;
using EnglewoodLAB.Management;

namespace EnglewoodLAB.UI
{
    public class CameraControlPanel : UIPanel
    {
        public List<CameraPoint> cameraViewPoints = new List<CameraPoint>();

        private readonly List<CameraControlItem> cameraButtons = new List<CameraControlItem>();
        public CameraControlItem cameraControlItem;

        private CameraControlItem selectedCameraControlItem;
        public bool isSceneReady;
        private void Awake()
        {
            IgnoreSingleOpenMode = true;    
        }
        public override async UniTask Init()
        {
            cameraControlItem = Resources.Load<CameraControlItem>($"{ResourceURL.UIPrefabFolderPath}CameraControlItem");
            SceneManager.sceneLoaded += OnSceneLoaded;

            //ÀÌ¹Ì ·ÎµåµÈ Ãʱ⠾À ¼öµ¿ ó¸®
            RefreshCameraPoints();
            gameObject.SetActive(false);
            await UniTask.CompletedTask;
        }
        private void OnDestroy()
        {
            SceneManager.sceneLoaded -= OnSceneLoaded;
        }
        private void OnSceneLoaded(Scene scene, LoadSceneMode mode)
        {
            RefreshCameraPoints();
        }
        private void RefreshCameraPoints()
        {
            cameraViewPoints = FindObjectsByType<CameraPoint>(FindObjectsSortMode.None).OrderBy(cp => cp.transform.GetSiblingIndex()).ToList();
            isSceneReady = cameraViewPoints == null || cameraViewPoints.Count == 0 ? false : true;

            SettingButtons();

            if (selectedCameraControlItem != null)
            {
                Debug.Log(selectedCameraControlItem.name);
                var point = cameraButtons.Find(x => selectedCameraControlItem.name.Contains(x.name)).point;
                CommandManager.Instance.Execute(new ChangedCameraCommand(point));
                selectedCameraControlItem = null;
                //SceneMain.Instance.uiManager.GetCanvas<StaticCanvas>().GetPanel<BottomLeftToolbar>().HideItem();
            }
        }
        public void SettingButtons()
        {
            if (cameraControlItem == null || cameraViewPoints.Count == 0) return;

            // Destroy existing buttons and clear the list to prevent duplicates on re-initialization.
            foreach (Transform child in transform)
            {
                Destroy(child.gameObject);
            }
            cameraButtons.Clear();

            for (int i = 0; i < cameraViewPoints.Count; i++)
            {
                var cameraButton = Instantiate(cameraControlItem, transform);
                cameraButton.SettingButton(cameraViewPoints[i]);
                cameraButton.OnItemClicked += HandleItemClicked;
                cameraButtons.Add(cameraButton);
            }
        }

        private void HandleItemClicked(CameraControlItem item)
        {
            var floorControl = SceneMain.Instance.GetManager<EWLUIManager>().GetCanvas<PopupCanvas>().GetPanel<FloorControlPanel>();
            floorControl.ChangedCurrentFloor(item.floorIndex);

            if (!isSceneReady)
            {
                selectedCameraControlItem = item;
                Debug.Log("Scene not ready. Camera change deferred.");
                return;
            }
            CommandManager.Instance.Execute(new ChangedCameraCommand(item.point));
            //SceneMain.Instance.uiManager.GetCanvas<StaticCanvas>().GetPanel<BottomLeftToolbar>().HideItem();

        }
    }
}