using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Reflection;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.IO;
namespace BITKit
{
    public class PersistentDataManager
    {
        static IEnumerable<FieldInfo> fieldInfos=new List<FieldInfo>();
        static JObject config;
        static string configPath = PathHelper.GetFilePath($"{nameof(config)}.json");
        [ExcuteOnAwake]
        public static async void Awake()
        {
            var json = File.ReadAllText( configPath );
            if(string.IsNullOrEmpty( json ) is false)
            {
                config = JObject.Parse(json);
                fieldInfos = await ReflectionHelper.GetFields<SaveDataAttribute>();
                foreach (var field in fieldInfos)
                {
                    if (config.TryGetValue(field.Name, out var token))
                    {
                        var value = token.ToObject(field.FieldType);
                        BIT4Log.Log<PersistentDataManager>($"正在加载:{field.Name}->{value}");
                        field.SetValue(null, value);
                    }
                }
            }
        }
        [ExcuteOnStart]
        public static void Start()
        {
            DataParser.Set(File.ReadAllText(configPath));
        }
        [ExcuteOnStop]
        public static void Stop()
        {
            Dictionary<string,object> dictionary = new Dictionary<string,object>();
            foreach (var field in fieldInfos)
            {
                var value = field.GetValue(null);
                dictionary.Add(field.Name,field.GetValue(null));
                BIT4Log.Log<PersistentDataManager>($"正在保存:{field.Name}->{value}");
            }
            var json = JsonConvert.SerializeObject(dictionary);
            File.WriteAllText(configPath,json);
            BIT4Log.Log<PersistentDataManager>("保存完成");
        }
    }
}