DD.WellWorkover.Cloud/AsbCloudWebApi/SignalR/NotificationHub.cs

using System;
using System.Threading;
using System.Threading.Tasks;
using AsbCloudApp.Requests;
using AsbCloudApp.Services.Notifications;
using AsbCloudWebApi.SignalR.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace AsbCloudWebApi.SignalR;

[Authorize]
public class NotificationHub : BaseHub
{
	private readonly ConnectionManagerService connectionManagerService;
	private readonly NotificationService notificationService;

	public NotificationHub(ConnectionManagerService connectionManagerService,
		NotificationService notificationService)
	{
		this.connectionManagerService = connectionManagerService;
		this.notificationService = notificationService;
	}

	public override async Task OnConnectedAsync()
	{
		var idUser = Context.User?.GetUserId();

		if (!idUser.HasValue)
			return;

		string connectionId = Context.ConnectionId;

		connectionManagerService.AddOrUpdateConnection(idUser.Value, connectionId);

		await base.OnConnectedAsync();

		await notificationService.ResendNotificationAsync(idUser.Value,
			new NotificationRequest { IsSent = false, IdTransportType = 0},
            CancellationToken.None);
	}

	public override async Task OnDisconnectedAsync(Exception? exception)
	{		
		var idUser = Context.User?.GetUserId();

		if (!idUser.HasValue)
			return;
		
		connectionManagerService.RemoveConnection(idUser.Value);
		await base.OnDisconnectedAsync(exception);
	}
}