using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.SignalR;
using MTWorkHR.Application.Filters;
using MTWorkHR.Application.Identity;
using MTWorkHR.Application.Mapper;
using MTWorkHR.Application.Models;
using MTWorkHR.Application.Services;
using MTWorkHR.Core.Entities;
using MTWorkHR.Core.Entities.Base;
using MTWorkHR.Core.Global;
using MTWorkHR.Core.UnitOfWork;
using MTWorkHR.Infrastructure.Entities;
using System;
using static Microsoft.EntityFrameworkCore.DbLoggerCategory.Database;

namespace MTWorkHR.API.Chat
{
    [AppAuthorize]
    public class ChatHub : Hub
    {
        private readonly IUnitOfWork _unitOfWork;
        private readonly GlobalInfo _globalInfo;
        private readonly UserService _userService; 
        public ChatHub(IUnitOfWork unitOfWork, GlobalInfo globalInfo, UserService userService) 
        {
            _unitOfWork = unitOfWork;
            _globalInfo = globalInfo;
            _userService = userService;
        }


        public async Task authMe()
        {
            string currSignalrID = Context.ConnectionId;
            //Person tempPerson = ctx.Person.Where(p => p.Username == personInfo.userName && p.Password == personInfo.password)
            //    .SingleOrDefault();

            if (_globalInfo.UserId != null) //if credentials are correct
            {
                Console.WriteLine("\n" + _globalInfo.UserName + " logged in" + "\nSignalrID: " + currSignalrID);

                HubConnection currUser = new HubConnection
                {
                    UserId = _globalInfo.UserId,
                    SignalrId = currSignalrID,
                    TimeStamp = DateTime.Now
                };
                var newConnection = await _unitOfWork.HubConnection.AddAsync(currUser);

                await _unitOfWork.CompleteAsync();

                ChatUserDto newUser = new ChatUserDto(_globalInfo.UserId, _globalInfo.UserName, currSignalrID);
                await Clients.Caller.SendAsync("authMeResponseSuccess", newUser);//4Tutorial
                await Clients.Others.SendAsync("userOn", newUser);//4Tutorial
            }

            else //if credentials are incorrect
            {
                await Clients.Caller.SendAsync("authMeResponseFail");
            }
        }

      
      
        public async Task getCompanyUsersList()
        {
            var companyUsers = await _userService.GetAllCompanyEmployees();
            var response = MapperObject.Mapper.Map<List<UserAllDto>>(companyUsers);

            await Clients.Caller.SendAsync("getCompanyUsersList", response);
        }

      
        //Simple Test Method
        public async Task SendMessageAll(string user, string message)
        {
            await Clients.All.SendAsync("ReceiveMessage", user, message);
        }

        public async Task sendMsg(string userId, string msg)
        {
            var allConnections = await _unitOfWork.HubConnection.GetAllAsync();
            var receiverUser = allConnections.Item1.FirstOrDefault(c => c.UserId == userId);
            var connId = receiverUser != null ? receiverUser.SignalrId : "0";
            ChatMessage messag = new ChatMessage { Content = msg, ReceiverId = connId, SenderId = _globalInfo.UserId, SenderName = _globalInfo.UserName, IsSeen = false };
            await Clients.Client(connId).SendAsync("sendMsgResponse", Context.ConnectionId, msg);
        }


        public async Task getAllMessagesByUser(string senderId)
        {
            var allmessages = await _unitOfWork.ChatMessage.GetAllWithChildrenAsync(senderId, _globalInfo.UserId);
            await Clients.Caller.SendAsync("allMessagesResponse", allmessages.Item1);
        }

        public async override Task<Task> OnDisconnectedAsync(Exception exception)
        {
            var connections = await _unitOfWork.HubConnection.GetAllAsync(Context.ConnectionId);
           var currUserId = connections.Item1.Select(c => c.UserId).SingleOrDefault();
            _unitOfWork.HubConnection.DeleteRangeAsync(connections.Item1.ToList());
            _unitOfWork.CompleteAsync();
            await Clients.Others.SendAsync("userOff", currUserId);
            return base.OnDisconnectedAsync(exception);
        }


      
        public void logOut(Guid personId)
        {
            var connections = _unitOfWork.HubConnection.GetAllAsync(Context.ConnectionId).Result;
           // var currUserId = connections.Item1.Select(c => c.UserId).SingleOrDefault();
            _unitOfWork.HubConnection.DeleteRangeAsync(connections.Item1.ToList());
            _unitOfWork.CompleteAsync();

            Clients.Caller.SendAsync("logoutResponse");
            Clients.Others.SendAsync("userOff", personId);
        }

      



        public async Task getOnlineUsers()
        {
            var allConnections = await _unitOfWork.HubConnection.GetAllAsync();
            var currUserId = allConnections.Item1.Where(c => c.SignalrId == Context.ConnectionId).Select(c => c.UserId).SingleOrDefault();
            List<ChatUserDto> onlineUsers = allConnections.Item1
                .Where(c => c.UserId != currUserId)
                .Select(c =>
                    new ChatUserDto(c.UserId, c.UserName, c.SignalrId)
                ).ToList();
            await Clients.Caller.SendAsync("getOnlineUsersResponse", onlineUsers);
        }



        //public async Task reauthMe(string userId)
        //{
        //    string currSignalrID = Context.ConnectionId;
        //    //ApplicationUser tempPerson = ctx.Person.Where(p => p.Id == personId)
        //    //    .SingleOrDefault();

        //    if (userId == _globalInfo.UserId) //if credentials are correct
        //    {
        //        Console.WriteLine("\n" + _globalInfo.UserName + " logged in" + "\nSignalrID: " + currSignalrID);

        //        HubConnection currUser = new HubConnection
        //        {
        //            UserId = _globalInfo.UserId,
        //            SignalrId = currSignalrID,
        //            TimeStamp = DateTime.Now
        //        };
        //        var newConnection = await _unitOfWork.HubConnection.AddAsync(currUser);

        //        await _unitOfWork.CompleteAsync();

        //        ChatUserDto newUser = new ChatUserDto(_globalInfo.UserId, _globalInfo.UserName, currSignalrID);

        //        await Clients.Caller.SendAsync("reauthMeResponse", newUser);//4Tutorial
        //        await Clients.Others.SendAsync("userOn", newUser);//4Tutorial
        //    }
        //} //end of reauthMe


    }
}