using System;
using System.Linq;
using System.Reflection;
using Duckov.Utilities;
using Saves;
using UnityEngine;
using UnityEngine.SceneManagement;
using Object = UnityEngine.Object;

namespace CharacterPreview
{
    public class ModBehaviour : Duckov.Modding.ModBehaviour
    {
        private static CharacterModel characterModel;
        private const string characterFaceSaveKey = "CustomFace_MainCharacter";
        private OnPointerClick? instance;

        private const string ModelName = "CharacterPreviewModel";

        protected override void OnAfterSetup()
        {
            MainMenu.OnMainMenuAwake += CreateCharacterModel;
            //
            // if (!instance)
            // {
            //     instance = GetPointerClickEventReceiver();
            //     if (instance == null)
            //     {
            //         Debug.LogError("未能找到 SceneLoader.Instance.pointerClickEventRecevier!");
            //     }
            //     else
            //     {
            //         instance.onPointerClick.AddListener((t) => CreateCharacterModel());
            //     }
            //     
            // }
        }

        protected override void OnBeforeDeactivate()
        {
            MainMenu.OnMainMenuAwake -= CreateCharacterModel;
            
            if (characterModel)
            {
                Destroy(characterModel.gameObject);
            }
        }

        public static void CreateCharacterModel()
        {
            if (characterModel)
            {
                Debug.LogWarning("CharacterModel is already created");
                return;
            }

            if (SceneManager.GetActiveScene().name != "MainMenu")
            {
                Debug.LogWarning("非主菜单");
                return;
            }
            if (!characterModel)
            {
                var prefab = GetCharacterModelPrefab_Reflection();
                if (prefab == null)
                {
                    Debug.LogError("未能获取 CharacterModel 预制体！");
                    return;
                }
                characterModel = Instantiate(prefab);
            }

            if (characterModel)
            {
                characterModel.name = ModelName;
                var customFaceSettingData = SavesSystem.Load<CustomFaceSettingData>(characterFaceSaveKey);
                if (!customFaceSettingData.savedSetting)
                {
                    Debug.LogError("未能找到或加载 CustomFaceSettingData !");
                    customFaceSettingData = GameplayDataSettings.CustomFaceData.DefaultPreset.settings;
                }
                characterModel.CustomFace.LoadFromData(customFaceSettingData);
                characterModel.gameObject.AddComponent<ModelMove>();
            }
        }

        OnPointerClick GetPointerClickEventReceiver()
        {
            var sl = SceneLoader.Instance;
            // 使用反射获取 SceneLoader 中的 pointerClickEventReceiver 字段
            var field = typeof(SceneLoader).GetField("pointerClickEventRecevier", BindingFlags.Instance | BindingFlags.NonPublic);
            if (field == null)
            {
                Debug.LogError("pointerClickEventRecevier 字段在 SceneLoader 中未找到！");
                return null;
            }
            // 获取字段值并转换为 OnPointerClick
            var eventReceiver = field.GetValue(sl) as OnPointerClick;
            if (eventReceiver == null)
            {
                Debug.LogError("pointerClickEventRecevier 字段的值为空！");
                return null;
            }
            return eventReceiver;
        }
        private static CharacterModel GetCharacterModelPrefab_Reflection()
        {
            // 获取 LevelManager 实例
            var lm = GameplayDataSettings.Prefabs.LevelManagerPrefab;
            if (lm == null)
            {
                Debug.LogError("LevelManager 实例未找到！");
                return null;
            }

            // 使用反射获取 LevelManager 中的 characterModel 字段
            var field = typeof(LevelManager).GetField("characterModel", BindingFlags.Instance | BindingFlags.NonPublic);
            if (field == null)
            {
                Debug.LogError("characterModel 字段在 LevelManager 中未找到！");
                return null;
            }

            // 获取字段值并转换为 CharacterModel
            var modelPrefab = field.GetValue(lm) as CharacterModel;
            if (modelPrefab == null)
            {
                Debug.LogError("characterModel 字段的值为空！");
                return null;
            }
            return modelPrefab;
        }
    }
}