using System;
using System.Collections.Generic;

namespace BITKit
{
	/// <summary>
	/// 持久化数据服务
	/// </summary>
	public interface IPersistentDataService
	{
		public void Register(IPersistentCallback callback);
		public void Unregister(IPersistentCallback callback);
		public void ManualSave();
		public void ManualLoad();
		public void ManualLoad(string json);
	}

	public interface IPersistentCallback
	{
		string Name { get; }
		void Load(string json);
		string Save();
	}

	public class PersistentDataService : IPersistentDataService
	{
		private readonly List<IPersistentCallback> callbacks = new();
		public void Register(IPersistentCallback callback) => callbacks.Add(callback);
		public void Unregister(IPersistentCallback callback) => callbacks.Remove(callback);

		public void ManualSave()
		{
			throw new NotImplementedException();
		}

		public void ManualLoad()
		{
			throw new NotImplementedException();
		}

		public void ManualLoad(string json)
		{
			throw new NotImplementedException();
		}
	}
}