using AyCode.Core.Extensions;
using MessagePack;
using Newtonsoft.Json.Linq;
using System.Text.RegularExpressions;
using AyCode.Core.Interfaces;
using System.Collections.Generic;
using System.Linq.Expressions;

namespace AyCode.Services.SignalRs;

public class IdMessage
{
    public List<string> Ids { get; private set; } = [];

    public IdMessage()
    {
    }

    public IdMessage(IEnumerable<object> ids) : this()
    {
        //Ids.AddRange(ids);
        Ids.AddRange(ids.Select(x =>
        {
            string item;

            //if (x is Expression expr)
            //{
            //    string aa = string.Empty;
            //    var serializer = new ExpressionSerializer(new JsonSerializer());
            //    try
            //    {
            //        aa = serializer.SerializeText(expr);
            //    }
            //    catch(Exception ex)
            //    {
            //        Console.WriteLine(ex);
            //    }

            //    item = (new[] { aa }).ToJson();
            //}
            //else 
            item = (new[] { x }).ToJson();

            return item;
        }));
    }

    public IdMessage(object id) : this(new object[] { id })
    {
    }

    public IdMessage(IEnumerable<Guid> ids) : this(ids.Cast<object>().ToArray())
    {
    }

    public override string ToString()
    {
        return string.Join("; ", Ids);
    }
}

public class SignalPostJsonMessage
{
    [Key(0)]
    public string PostDataJson { get; set; }

    public SignalPostJsonMessage()
    {}
    protected SignalPostJsonMessage(string postDataJson) => PostDataJson = postDataJson;
}

[MessagePackObject]
public class SignalPostJsonDataMessage<TPostDataType> : SignalPostJsonMessage, ISignalPostMessage<TPostDataType> //where TPostDataType : class
{
    [IgnoreMember]
    private TPostDataType? _postData;

    [IgnoreMember]
    public TPostDataType PostData
    {
        get
        {
            return _postData ??= PostDataJson.JsonTo<TPostDataType>()!;
        }
        private init
        {
            _postData = value;
            PostDataJson = _postData.ToJson();
        }
    }

    public SignalPostJsonDataMessage() : base()
    {}
    public SignalPostJsonDataMessage(TPostDataType postData) => PostData = postData;
    public SignalPostJsonDataMessage(string postDataJson) : base(postDataJson)
    {}
}

[MessagePackObject]
public class SignalPostMessage<TPostData>(TPostData postData) : ISignalPostMessage<TPostData>
{
    [Key(0)]
    public TPostData? PostData { get; set; } = postData;
}

public interface ISignalPostMessage<TPostData> : ISignalRMessage
{
    TPostData? PostData { get; }
}

[MessagePackObject]
public class SignalRequestByIdMessage(Guid id) : ISignalRequestMessage<Guid>, IId<Guid>
{
    [Key(0)]
    public Guid Id { get; set; } = id;
}

public interface ISignalRequestMessage<TRequestId> : ISignalRMessage
{
    TRequestId Id { get; set; }
}

public interface ISignalRMessage
{ }


[MessagePackObject]
public sealed class SignalResponseJsonMessage :  ISignalResponseMessage<string>
{
    [Key(0)] public int MessageTag { get; set; }

    [Key(1)] public SignalResponseStatus Status { get; set;  }

    [Key(2)] public string? ResponseData { get; set; } = null;
    
    [IgnoreMember] 
    public string? ResponseDataJson => ResponseData;

    public SignalResponseJsonMessage(){}

    public SignalResponseJsonMessage(int messageTag, SignalResponseStatus status)
    {
        Status = status;
        MessageTag = messageTag;
    }

    public SignalResponseJsonMessage(int messageTag, SignalResponseStatus status, object? responseData) : this(messageTag, status)
    {
        if (responseData is string stringdata) 
            ResponseData = stringdata;
        else ResponseData = responseData.ToJson();
    }

    public SignalResponseJsonMessage(int messageTag, SignalResponseStatus status, string? responseDataJson) : this(messageTag, status)
    {
        ResponseData = responseDataJson;
    }
}

/// <summary>
/// Signal response message with lazy deserialization support.
/// ResponseData is only deserialized on first access and cached.
/// Use ResponseDataJson for direct JSON access without deserialization.
/// </summary>
[MessagePackObject]
public sealed class SignalResponseMessage<TResponseData> : ISignalResponseMessage<TResponseData>
{
    [IgnoreMember]
    private TResponseData? _responseData;
    
    [IgnoreMember]
    private bool _isDeserialized;

    [Key(0)] 
    public int MessageTag { get; set; }
    
    [Key(1)] 
    public SignalResponseStatus Status { get; set; }
    
    /// <summary>
    /// Raw JSON string. Use this for direct JSON access without triggering deserialization.
    /// </summary>
    [Key(2)] 
    public string? ResponseDataJson { get; set; }

    /// <summary>
    /// Deserialized response data. Lazy-loaded on first access.
    /// </summary>
    [IgnoreMember]
    public TResponseData? ResponseData
    {
        get
        {
            if (!_isDeserialized)
            {
                _responseData = ResponseDataJson != null 
                    ? ResponseDataJson.JsonTo<TResponseData>() 
                    : default;
                _isDeserialized = true;
            }
            return _responseData;
        }
        set
        {
            _responseData = value;
            _isDeserialized = true;
            ResponseDataJson = value?.ToJson();
        }
    }

    public SignalResponseMessage()
    {
    }

    public SignalResponseMessage(int messageTag, SignalResponseStatus status)
    {
        MessageTag = messageTag;
        Status = status;
    }

    public SignalResponseMessage(int messageTag, SignalResponseStatus status, TResponseData? responseData)
        : this(messageTag, status)
    {
        ResponseData = responseData;
    }

    public SignalResponseMessage(int messageTag, SignalResponseStatus status, string? responseDataJson)
        : this(messageTag, status)
    {
        ResponseDataJson = responseDataJson;
    }
}

public interface ISignalResponseMessage<TResponseData> : ISignalResponseMessage
{
    /// <summary>
    /// Deserialized response data. May trigger lazy deserialization.
    /// </summary>
    TResponseData? ResponseData { get; set; }
    
    /// <summary>
    /// Raw JSON string for direct access without deserialization.
    /// </summary>
    string? ResponseDataJson { get; }
}

public interface ISignalResponseMessage : ISignalRMessage
{
    int MessageTag { get; set; }
    SignalResponseStatus Status { get; set; }
}

public enum SignalResponseStatus : byte
{
    Error = 0,
    Success = 5
}

public interface IAcSignalRHubClient : IAcSignalRHubBase
{
    Task SendMessageToServerAsync(int messageTag, ISignalRMessage? message, int? requestId );
    //Task SendRequestToServerAsync(int messageTag, int requestId);
}