AX.WebDrillServer/AX.WebDrillServer/Hubs/FireDeductionHub.cs

using AX.WebDrillServer.Data;
using AX.WebDrillServer.Extensions;
using AX.WebDrillServer.Middlewares.Jwts;
using AX.WebDrillServer.Models;
using AX.WebDrillServer.Services.FireDeductionHub;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.SignalR;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using System.Collections.Concurrent;
using System.Security.Claims;

namespace AX.WebDrillServer.Hubs
{
    //[Authorize]
    public class FireDeductionHub : Hub
    {
        private readonly RoomManager roomManager;

        private readonly ApplicationDbContext _dbContext;

        private readonly ILogger<FireDeductionHub> _logger;

        public FireDeductionHub(
            ApplicationDbContext dbContext,
            ILogger<FireDeductionHub> logger,
            RoomManager roomManager)
        {
            _dbContext = dbContext;
            _logger = logger;
            this.roomManager = roomManager;
        }
        public async Task<FireDeductionRoom> CreateRoom(RoomCreateDto createInfo, FireDeductionUser user)
        {
            FireDeductionRoom room = new FireDeductionRoom();
            room.Owner = createInfo.UserId;
            room.RoomId = Guid.NewGuid().ToString();
            room.RoomName = createInfo.RoomName;
            room.Password = createInfo.RoomPassword;
            room.Users.Add(user);
            await Groups.AddToGroupAsync(user.ConnectionId, room.RoomId);
            return room;
        }
        public async Task<bool> EnterRoom(string roomId, FireDeductionUser user, string? password = null)
        {
            bool result = false;

            var room = roomManager.GetRoom(roomId);
            if (room != null && room.Password == password)
            {
                if (!room.Users.Contains(user))
                {
                    result = true;
                }
                else
                {
                    throw new NotImplementedException("房间中已经存在该用户!");
                }
            }
            else
            {
                throw new NotImplementedException("房间信息有误!");
            }


            return result;
        }

        public async Task<bool> LeaveRoom(string roomId, string userId)
        {
            bool result = false;
            await Task.Run(() =>
            {
                var room = roomManager.GetRoom(roomId);
                if (room != null)
                {
                    var user = room.Users.FirstOrDefault(u => u.UserId == userId);
                    if (user != null)
                    {
                        room.Users.Remove(user);
                        if (room.Users.Count == 0)
                        {
                            //TODO:保持空房间xx分钟
                        }
                    }
                    else
                    {
                        throw new NotImplementedException("用户信息有误!");
                    }
                }
                else
                {
                    throw new NotImplementedException("房间信息有误!");
                }
            });

            return result;
        }
        public async Task RoomSendMessage(string RoomId, string Message)
        {
            await Clients.Group(RoomId).SendAsync(Message);
            //TODO:保存数据
        }

        public async Task SendMessage(string user, string Message)
        {
            await Clients.All.SendAsync(Message);
            //TODO:保存数据
        }

        public override async Task OnConnectedAsync()
        {
            try
            {
                var userId = Context.UserIdentifier;
                var userName = Context.GetNameOfCurrentUser();
                FireDeductionUser? user = roomManager.GetUser(userId!);

                if (user != null)
                {
                    user.Online = true;
                    var room = roomManager.GetRoomByUserId(user.UserId);
                    if (room != null)
                    {
                        //断线重连
                    }
                }
                else
                {
                    user = new FireDeductionUser();
                    user.ConnectionId = Context.ConnectionId;
                    user.UserId = userId!;
                    user.UserName = userName!;
                }
                _logger.LogInformation("[{userId}][{name}] connected", userId, userName);

                await base.OnConnectedAsync();
            }
            catch (Exception)
            {
                throw;
            }
        }

        public override async Task OnDisconnectedAsync(Exception? exception)
        {
            try
            {
                var userId = Context.UserIdentifier;
                var userName = Context.User?.FindFirstValue(JwtClaimTypes.Name);
                if (userId == null) _logger.LogError("无效的 userId: [{userId}]!", userId);

                if (userId != null)
                {
                    var user = roomManager.GetUser(userId!);
                    if (user != null)
                    {
                        user.Online = false;
                        var room = roomManager.GetRoomByUserId(user.UserId);
                        if (room != null)
                        {
                            //断线
                        }
                    }
                }

                await base.OnDisconnectedAsync(exception);
                _logger.LogInformation("[{userId}][{name}] 断开了连接", userId, userName);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}