using Object = UnityEngine.Object;
using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using Framework.Constants;
using Gameplay.Manager;
using UnityEngine;
using PhxhSDK;
using System;
using TMPro;

namespace Gameplay.Level
{
    public class KongManager : Singlenton<KongManager>, IInitable
    {
        private Dictionary<string, Kong> _holeDic;
        public Dictionary<string, Kong> HoleDic => _holeDic;

        private List<Vector3> _addedNewHolesPos;
        private List<Kong> _addedNewHoles;

        private GameObject _kongRoot;
        private GameObject _thumbtackRoot;

        private GameObject _tThumb;
        private GameObject _tHole;

        private LevelData _holeLevelData;

        private const string HoleOfPlankLayer = "HoleOfPlank";

        public async UniTask PreLoadLevelItem()
        {
            _tThumb = await LoadItem("Thumbtack");
            _tHole = await LoadItem("Kong");

            try
            {
                var xPos = LevelUtils.GeneratePositions(_holeLevelData.columnCount, 1);
                var yPos = LevelUtils.GeneratePositions(_holeLevelData.rowCount, -1);

                _holeDic = new Dictionary<string, Kong>();

                for (var y = 0; y < yPos.Count; y++)
                {
                    for (var x = 0; x < xPos.Count; x++)
                    {
                        var index = y * xPos.Count + x;
                        if (_holeLevelData.holesIndex.Contains(index))
                        {
                            var myHole = Object.Instantiate(_tHole, _kongRoot.transform);
                            myHole.name = _tHole.name + index;
                            myHole.transform.position = new Vector3(xPos[x], yPos[y], 0f);
                            var hole = new Kong(myHole, index);
                            if (!_holeLevelData.emptyHoleIndex.Contains(index))
                            {
                                var myThumb = Object.Instantiate(_tThumb, _thumbtackRoot.transform);
                                myThumb.name = _tThumb.name + index;
                                myThumb.transform.position = new Vector3(xPos[x], yPos[y], 0f);
                                var thumbtack = new Thumbtack(myThumb);
                                hole.LevelThumbtack = thumbtack;
                            }

                            _holeDic.Add(myHole.name, hole);
                        }
                    }
                }

                _addedNewHolesPos = LevelUtils.GetAdditionalAddedHolesPos(new Vector3(xPos[0], yPos[^1], 0f),
                    LevelManager.Instance.CurrentLevel.LevelData.columnCount);
            }
            catch (Exception e)
            {
                DebugUtil.LogError("HoleManager.PreLoadLevelItem Fail. Error: {0}", e);
            }
        }

        public void Init()
        {
            _holeLevelData = LevelManager.Instance.CurrentLevel.LevelData;
            _kongRoot = GameObject.Find("KongRoot");
            _thumbtackRoot = GameObject.Find("ThumbtackRoot");
            _addedNewHolesPos = new List<Vector3>();
            _addedNewHoles = new List<Kong>();
        }

        private async UniTask<GameObject> LoadItemPrefab(string itemName)
        {
            try
            {
                var path = string.Format(Framework.Constants.Constants.ItemPrefabPath, itemName);
                var item = await AssetManager.Instance.LoadAssetAsync<GameObject>(path);
                return item;
            }
            catch (Exception e)
            {
                DebugUtil.LogError("HoleManager.LoadItemPrefab Fail. ItemName: {0}, Error: {1}", itemName, e);
                return null;
            }
        }

        private async UniTask<GameObject> LoadItem(string itemName)
        {
            GameObject item = null;
            item = await LoadItemPrefab(itemName);
            if (item == null)
            {
                item = Resources.Load<GameObject>(itemName);
            }

            return item;
        }

        public Kong GetHole(string holeName)
        {
            if (!_holeDic.TryGetValue(holeName, out Kong hole))
            {
                DebugUtil.LogError("Error Get hole by name:{0}", holeName);
            }

            return hole;
        }

        public Vector3 CanAddNewHole()
        {
            var newPos = Vector3.zero;
            if (_addedNewHolesPos is { Count: > 0 })
                newPos = _addedNewHolesPos[0];
            return newPos;
        }

        public void AddNewHole()
        {
            try
            {
                if (_addedNewHolesPos is { Count: > 0 })
                {
                    var myHole = Object.Instantiate(_tHole, _kongRoot.transform);
                    var index = _holeLevelData.rowCount * _holeLevelData.columnCount + _addedNewHoles.Count;
                    myHole.name = _tHole.name + index;
                    myHole.transform.position = _addedNewHolesPos[0];
                    var hole = new Kong(myHole, index);
                    _holeDic.Add(myHole.name, hole);
                    _addedNewHoles.Add(hole);
                    _addedNewHolesPos.RemoveAt(0);
                }
            }
            catch (Exception e)
            {
                DebugUtil.LogError("HoleManager.AddNewHole Fail. Error: {0}", e);
            }
        }

        /// <summary>
        /// Hole是否有和Plank的孔重叠
        /// </summary>
        public bool IsOverlapHoleOfPlank(Kong kong, Plank plank)
        {
            var hitColliders = LevelUtils.GetTriggerColliders(kong.Obj, HoleOfPlankLayer);
            foreach (var hit in hitColliders)
            {
                if (plank.HolesOfPlank.TryGetValue(hit.name, out var holeOfPlank))
                {
                    var holeOfPlankCenter = holeOfPlank.transform.position;
                    var holeCenter = kong.Obj.gameObject;
                    if (LevelUtils.JudgeContains(holeOfPlankCenter, holeCenter) &&
                        Vector3.Distance(kong.Obj.transform.position, holeOfPlank.transform.position) <=
                        LevelConstants.MaxDistance)
                    {
                        return true;
                    }
                }
            }

            return false;
        }

        public void ShowHoleIndex()
        {
            foreach (var hole in _holeDic)
            {
                var text = hole.Value.Obj.transform.Find("Index").gameObject;
                text.SetActive(true);
                text.GetComponent<TextMeshPro>().text = hole.Key.Substring("Hole".Length);
            }
        }

        public void Release()
        {
            if (_holeDic == null) return;
            foreach (var hole in _holeDic.Values)
            {
                hole.LevelThumbtack?.Obj.Destroy();

                hole.Obj.Destroy();
            }

            _holeDic.Clear();
        }
    }
}