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ColaFlow/colaflow-api/src/Modules/Mcp/ColaFlow.Modules.Mcp.Application/EventHandlers/PendingChangeApprovedNotificationHandler.cs
Yaojia Wang 63ff1a9914
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Clean up
2025-11-09 18:40:36 +01:00

59 lines
2.6 KiB
C#

using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
using ColaFlow.Modules.Mcp.Application.Services;
using ColaFlow.Modules.Mcp.Domain.Events;
using MediatR;
using Microsoft.Extensions.Logging;
namespace ColaFlow.Modules.Mcp.Application.EventHandlers;
/// <summary>
/// Event handler that sends SignalR notifications when a PendingChange is approved
/// Runs in parallel with PendingChangeApprovedEventHandler (which executes the change)
/// </summary>
public class PendingChangeApprovedNotificationHandler(
IMcpNotificationService notificationService,
ILogger<PendingChangeApprovedNotificationHandler> logger)
: INotificationHandler<PendingChangeApprovedEvent>
{
private readonly IMcpNotificationService _notificationService = notificationService ?? throw new ArgumentNullException(nameof(notificationService));
private readonly ILogger<PendingChangeApprovedNotificationHandler> _logger = logger ?? throw new ArgumentNullException(nameof(logger));
public async Task Handle(PendingChangeApprovedEvent notification, CancellationToken cancellationToken)
{
_logger.LogInformation(
"Handling PendingChangeApprovedEvent for notification - PendingChangeId={PendingChangeId}, EntityType={EntityType}",
notification.PendingChangeId, notification.Diff.EntityType);
try
{
// Create notification DTO
var notificationDto = new PendingChangeApprovedNotification
{
NotificationType = "PendingChangeApproved",
PendingChangeId = notification.PendingChangeId,
ToolName = notification.ToolName,
EntityType = notification.Diff.EntityType,
Operation = notification.Diff.Operation,
EntityId = notification.Diff.EntityId,
ApprovedBy = notification.ApprovedBy,
TenantId = notification.TenantId,
Timestamp = DateTime.UtcNow
};
// Send notification via SignalR
await _notificationService.NotifyPendingChangeApprovedAsync(notificationDto, cancellationToken);
_logger.LogInformation(
"PendingChangeApproved notification sent successfully - PendingChangeId={PendingChangeId}",
notification.PendingChangeId);
}
catch (Exception ex)
{
_logger.LogError(ex,
"Failed to send PendingChangeApproved notification - PendingChangeId={PendingChangeId}",
notification.PendingChangeId);
// Don't rethrow - notification failure shouldn't break the main flow
}
}
}