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

using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using AsbCloudApp.IntegrationEvents;
using AsbCloudApp.IntegrationEvents.Events;
using AsbCloudInfrastructure.Services;
using Microsoft.AspNetCore.SignalR;

namespace AsbCloudWebApi.SignalR;

public class WellInfoUpdaterHub : Hub, IIntegrationEventHandler<WellInfoUpdaterEvent>
{
	private const string groupTemplate = "system_operation_updater_well_{0}";
	
	private readonly IHubContext<WellInfoUpdaterHub> hubContext;
	private readonly WellInfoService wellInfoService;

	public WellInfoUpdaterHub(IHubContext<WellInfoUpdaterHub> hubContext,
		WellInfoService wellInfoService)
	{
		this.hubContext = hubContext;
		this.wellInfoService = wellInfoService;
	}

	public async Task OnConnectedAsync(int idWell)
	{
		await base.OnConnectedAsync();

		await Groups.AddToGroupAsync(Context.ConnectionId, string.Format(groupTemplate, idWell));
			
		await HandleAsync(new WellInfoUpdaterEvent(idWell), CancellationToken.None);
	}

	public async Task HandleAsync(WellInfoUpdaterEvent integrationEvent, CancellationToken cancellationToken)
	{
		const string method = "well_info_update";

		var wellInfo = wellInfoService.FirstOrDefault(w => w.Id == integrationEvent.IdWell);

		if (wellInfo != null)
		{
			var serializedObject = JsonSerializer.Serialize(wellInfo);

			await hubContext.Clients.Group(string.Format(groupTemplate, integrationEvent.IdWell))
				.SendCoreAsync(method, new object[] { serializedObject }, cancellationToken);
		}
	}  
	 
}