using System;
using System.Linq;
using MongoDB.Bson;
using MongoDB.Driver;

namespace ET
{
    class PlayerInfoComponentStartSystem:StartSystem<PlayerInfoComponent>
    {
        public override void Start(PlayerInfoComponent self)
        {
            self.AddComponent<FixedTimeSaveComponent>().Init(10*60*1000,self.Save);
        }
    }
    public static class PlayerInfoComponentSystem
    {
        public static void Save(this PlayerInfoComponent self)
        {
            Log.Info($"存档 「{self.unitInfoDic.Count}」");
            foreach (var kv in self.unitInfoDic)
            { 
                DBComponent.Instance.Save(Game.IdGenerater.GenerateId(),kv.Value.Values.ToList()).Coroutine();
            }
        }
        public static void AddInfo(this PlayerInfoComponent self, long id, string type, Entity str)
        {
            self.unitInfoDic.TryGetDic(type, out var dic);
            if (dic == null)
            {
                self.unitInfoDic.Add(type, id, str);
                return;
            }

            dic[id] = str;
        }

        public static async ETTask<Entity> GetInfo(this PlayerInfoComponent self, long id, string type)
        {
            Log.Info($"{id} 查询 {type}");
            self.unitInfoDic.TryGetDic(type, out var dic);
            Entity e = null;
            if (dic == null)
            {
                 e = await GetEntity(id, type);
                if (e == null)
                {
                    Log.Error($"e == null id = {id} type = {type}");
                    return null;
                }

                self.unitInfoDic.Add(type, id, e);
                dic = self.unitInfoDic[type];
            }

            dic.TryGetValue(id, out e);
            if (e == null)
            {
                 e = await GetEntity(id, type);
                if (e == null)
                {
                    Log.Error($"e == null id = {id} type = {type}");
                    return null;
                }
                dic[id] = e;
            }

            return e;
        }

        private static async ETTask<Entity> GetEntity(long id, string type)
        {
            Log.Info($"{id} 从数据库查询 {type}");
            var cursor = await DBComponent.Instance.GetCollection(type).FindAsync(d => d.Id == id);
            Entity e = await cursor.FirstOrDefaultAsync();

            return e;
        }
    }
}