using Framework;
using System.Collections.Generic;
using cfg.LevelCfg;
using UnityEngine;

namespace Gameplay.Level
{
    /// <summary>
    /// 关卡管理器
    /// </summary>
    public partial class LevelManager
    {
        private const string LAST_FIGHT_LEVEL_PREFIX = "last_fight_level_";

        /// <summary>
        /// 关卡信息字典
        /// </summary>
        private Dictionary<int, LevelInfo> dicLevelInfo = new();
        /// <summary>
        /// 章节信息字典
        /// </summary>
        private Dictionary<int, ChapterInfo> dicChapterInfo = new();
        /// <summary>
        /// 关卡组信息字典,key:关卡组id，value:关卡组信息
        /// </summary>
        private Dictionary<int, LevelGroupInfo> dicLevelGroupInfo = new();
        /// <summary>
        /// 关卡组红点id
        /// </summary>
        private readonly int[] levelGroupRedPointIDs = new[] { 101, 102, 103, 104 };
        /// <summary>
        /// 章节类型字典
        /// </summary>
        private Dictionary<E_ChapterType, List<ChapterInfo>> dicChapterType = new();

        private void InitData()
        {
            EventManager.Instance.Register(EventManager.EventName.AllConfigLoad, OnAllConfigLoad);
            EventManager.Instance.Register<int>(EventManager.EventName.NewLevelServerData, OnNewLevelServerData);
        }

        private void ReleaseData()
        {
            EventManager.Instance.Unregister<int>(EventManager.EventName.NewLevelServerData, OnNewLevelServerData);
            EventManager.Instance.Unregister(EventManager.EventName.AllConfigLoad, OnAllConfigLoad);

            DisposeRedPointTree();
            dicLevelInfo = null;
            dicChapterInfo = null;
            dicLevelGroupInfo = null;
        }

        #region API
        /// <summary>
        /// 刷新所有关卡信息
        /// </summary>
        public void RefreshAllLevelInfo()
        {
            foreach (LevelInfo levelInfo in dicLevelInfo.Values)
            {
                levelInfo?.RefreshServerData(true);
            }
        }

        /// <summary>
        /// 通关关卡id获取关卡信息
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public bool TryGetLevelInfoByID(int id, out LevelInfo levelInfo)
        {
            if (!dicLevelInfo.TryGetValue(id, out levelInfo))
            {
                DebugUtil.LogError($"找不到levelInfo,id:{id}");
                return false;
            }

            return true;
        }

        /// <summary>
        /// 通过关卡组id获取关卡组信息
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public bool TryGetLevelGroupInfoByID(int id, out LevelGroupInfo levelGroupInfo)
        {
            if (!dicLevelGroupInfo.TryGetValue(id, out levelGroupInfo))
            {
                DebugUtil.LogError($"找不到LevelGroupInfo,id:{id}");
                return false;
            }

            return true;
        }

        /// <summary>
        /// 通过章节id获取章节信息
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public bool TryGetChapterInfoByID(int id, out ChapterInfo chapterInfo)
        {
            if (!dicChapterInfo.TryGetValue(id, out chapterInfo))
            {
                DebugUtil.LogError($"找不到levelGroupInfo,id:{id}");
                return false;
            }

            return true;
        }

        /// <summary>
        /// 根据章节类型获取章节信息
        /// </summary>
        /// <param name="levelChapterType"></param>
        /// <returns></returns>
        public bool TryGetChapterInfosByType(E_ChapterType type, out List<ChapterInfo> listChapterInfo)
        {
            if (dicChapterType.TryGetValue(type, out listChapterInfo) && null != listChapterInfo)
                return true;

            return false;
        }

        /// <summary>
        /// 获取某种关卡类型上一次战斗的关卡
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        public LevelInfo GetLastFightLevelInfo(E_ChapterType type)
        {
            string key = GetChapterTypeSaveKey(type);
            if (!PlayerPrefs.HasKey(key))
                return null;

            int levelID = PlayerPrefs.GetInt(key);
            TryGetLevelInfoByID(levelID, out LevelInfo levelInfo);

            return levelInfo;
        }

        /// <summary>
        /// 通过id判断关卡是否解锁
        /// </summary>
        /// <param name="levelID"></param>
        /// <returns></returns>
        public bool CheckLevelUnlock(int levelID)
        {
            if(!TryGetLevelInfoByID(levelID, out LevelInfo levelInfo))
            {
                DebugUtil.LogError($"cant find levelInfo,id:{levelID}");
                return false;
            }

            return !levelInfo.IsLock;
        }

        /// <summary>
        /// 通过关卡id转数字
        /// </summary>
        /// <param name="levelID"></param>
        /// <returns></returns>
        public string LevelIDToNum(int levelID)
        {
            if(!TryGetLevelInfoByID(levelID, out LevelInfo levelInfo))
            {
                DebugUtil.LogError($"cant find levelInfo,id:{levelID}");
                return string.Empty;
            }

            return levelInfo.FullNumebr;
        }

        /// <summary>
        /// 通过关卡id转名字
        /// </summary>
        /// <param name="levelID"></param>
        /// <returns></returns>
        public string LevelIDToName(int levelID)
        {
            if(!TryGetLevelInfoByID(levelID, out LevelInfo levelInfo))
            {
                DebugUtil.LogError($"cant find levelInfo,id:{levelID}");
                return string.Empty;
            }

            return levelInfo.Name;
        }
        #endregion

        #region 私有方法
        /// <summary>
        /// 加载配置
        /// </summary>
        private void OnAllConfigLoad()
        {
            LoadAllLevelInfo();
            LoadAllLevelGroup();
            LoadAllChapter();
            ConstructRedPointTree();
        }

        /// <summary>
        /// 加载所有关卡信息
        /// </summary>
        private void LoadAllLevelInfo()
        {
            dicLevelInfo.Clear();
            List<DataLevel> listAllLevelConfig = TableManager.Instance.Tables.Level.DataList;

            foreach (DataLevel config in listAllLevelConfig)
            {
                dicLevelInfo.Add(config.Id, new LevelInfo(config));
            }
        }

        /// <summary>
        /// 加载所有关卡组信息
        /// </summary>
        private void LoadAllLevelGroup()
        {
            dicLevelGroupInfo.Clear();
            foreach (LevelInfo levelInfo in dicLevelInfo.Values)
            {
                int levelGroupID = levelInfo.Cfg.LevelGroupID;
                if (0 == levelGroupID)
                    continue;

                if (!dicLevelGroupInfo.TryGetValue(levelGroupID, out LevelGroupInfo levelGroupInfo))
                {
                    DataLevelGroup config = TableManager.Instance.Tables.LevelGroupConfig.Get(levelGroupID);
                    if (null != config)
                    {
                        levelGroupInfo = new LevelGroupInfo(config);
                        dicLevelGroupInfo.Add(levelGroupID, levelGroupInfo);
                    }
                    else
                        DebugUtil.LogError($"找不到关卡组配置, id: {levelGroupID}");
                }

                levelGroupInfo?.AddLevel(levelInfo);
            }
        }

        /// <summary>
        /// 加载所有章节
        /// </summary>
        private void LoadAllChapter()
        {
            dicChapterInfo.Clear();
            foreach (LevelGroupInfo levelGroupInfo in dicLevelGroupInfo.Values)
            {
                int chapterID = levelGroupInfo.Cfg.ChapterID;
                if (!dicChapterInfo.TryGetValue(chapterID, out ChapterInfo chapterInfo))
                {
                    DataChapter config = TableManager.Instance.Tables.Chapter.Get(chapterID);
                    if (null != config)
                    {
                        chapterInfo = new ChapterInfo(config);
                        dicChapterInfo.Add(chapterID, chapterInfo);
                    }
                    else
                        DebugUtil.LogError($"找不到章节配置,id：{chapterID}");
                }

                chapterInfo?.AddLevelGroupInfo(levelGroupInfo);
            }

            foreach (ChapterInfo chapterInfo in dicChapterInfo.Values)
            {
                E_ChapterType chapterType = chapterInfo.Cfg.Type;
                if (!dicChapterType.TryGetValue(chapterType, out List<ChapterInfo> list))
                {
                    list = new();
                    dicChapterType.Add(chapterType, list);
                }

                list.Add(chapterInfo);
            }
        }

        private void ConstructRedPointTree()
        {
            foreach (ChapterInfo chapterInfo in dicChapterInfo.Values)
            {
                int index = (int)chapterInfo.Cfg.Type;
                if (index < 0 || index > levelGroupRedPointIDs.Length)
                {
                    DebugUtil.LogError($"index is out of range!index:{index}");
                    continue;
                }

                int redPointParentID = levelGroupRedPointIDs[index];
                chapterInfo.ConstructRedPointTree(redPointParentID);
            }
        }

        private void DisposeRedPointTree()
        {
            foreach (ChapterInfo chapterInfo in dicChapterInfo.Values)
            {
                if (null != chapterInfo.RedPoint)
                    RedPointManager.Instance.RemoveDynamicNode(chapterInfo.RedPoint);
            }
        }

        /// <summary>
        /// 新的关卡服务器数据
        /// </summary>
        /// <param name="levelID"></param>
        private void OnNewLevelServerData(int levelID)
        {
            if (TryGetLevelInfoByID(levelID, out LevelInfo levelInfo))
                levelInfo.RefreshServerData(false);
        }

        /// <summary>
        /// 保存战斗关卡
        /// </summary>
        /// <param name="levelInfo"></param>
        private void SaveFightLevel(LevelInfo levelInfo)
        {
            if(null == levelInfo)
                return;

            LevelGroupInfo levelGroupInfo = levelInfo.GroupInfo;
            if(null == levelGroupInfo)
                return;

            ChapterInfo chapterInfo = levelGroupInfo.ChapterInfo;
            if(null == chapterInfo)
                return;

            PlayerPrefs.SetInt(GetChapterTypeSaveKey(chapterInfo.Cfg.Type), levelInfo.Cfg.Id);
        }

        private string GetChapterTypeSaveKey(E_ChapterType chapterType) => LAST_FIGHT_LEVEL_PREFIX + chapterType;
        #endregion
    }
}