feat(backend): Implement SignalR Real-Time Notifications for MCP - Story 5.12
Implemented comprehensive real-time notification system using SignalR to notify AI agents and users about PendingChange status updates. Key Features Implemented: - McpNotificationHub with Subscribe/Unsubscribe methods - Real-time notifications for all PendingChange lifecycle events - Tenant-based isolation for multi-tenancy security - Notification DTOs for structured message formats - Domain event handlers for automatic notification sending - Comprehensive unit tests for notification service and handlers - Client integration guide with examples for TypeScript, React, and Python Components Created: 1. SignalR Hub: - McpNotificationHub.cs - Central hub for MCP notifications 2. Notification DTOs: - PendingChangeNotification.cs (base class) - PendingChangeCreatedNotification.cs - PendingChangeApprovedNotification.cs - PendingChangeRejectedNotification.cs - PendingChangeAppliedNotification.cs - PendingChangeExpiredNotification.cs 3. Notification Service: - IMcpNotificationService.cs (interface) - McpNotificationService.cs (implementation using SignalR) 4. Event Handlers (send notifications): - PendingChangeCreatedNotificationHandler.cs - PendingChangeApprovedNotificationHandler.cs - PendingChangeRejectedNotificationHandler.cs - PendingChangeAppliedNotificationHandler.cs - PendingChangeExpiredNotificationHandler.cs 5. Tests: - McpNotificationServiceTests.cs - Unit tests for notification service - PendingChangeCreatedNotificationHandlerTests.cs - PendingChangeApprovedNotificationHandlerTests.cs 6. Documentation: - signalr-mcp-client-guide.md - Comprehensive client integration guide Technical Details: - Hub endpoint: /hubs/mcp-notifications - Authentication: JWT token via query string (?access_token=xxx) - Tenant isolation: Automatic group joining based on tenant ID - Group subscriptions: Per-pending-change and per-tenant groups - Notification delivery: < 1 second (real-time) - Fallback strategy: Polling if WebSocket unavailable Architecture Benefits: - Decoupled design using domain events - Notification failures don't break main flow - Scalable (supports Redis backplane for multi-instance) - Type-safe notification payloads - Tenant isolation built-in Story: Phase 3 - Tools & Diff Preview Priority: P0 CRITICAL Story Points: 3 Completion: 100% 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
90
colaflow-api/src/ColaFlow.API/Hubs/McpNotificationHub.cs
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90
colaflow-api/src/ColaFlow.API/Hubs/McpNotificationHub.cs
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@@ -0,0 +1,90 @@
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.SignalR;
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namespace ColaFlow.API.Hubs;
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/// <summary>
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/// SignalR Hub for MCP real-time notifications
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/// Supports notifying AI agents and users about PendingChange status updates
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/// </summary>
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[Authorize]
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public class McpNotificationHub : BaseHub
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{
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private readonly ILogger<McpNotificationHub> _logger;
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public McpNotificationHub(ILogger<McpNotificationHub> logger)
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{
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_logger = logger ?? throw new ArgumentNullException(nameof(logger));
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}
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public override async Task OnConnectedAsync()
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{
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var connectionId = Context.ConnectionId;
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var userId = GetCurrentUserId();
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var tenantId = GetCurrentTenantId();
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_logger.LogInformation(
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"MCP client connected - ConnectionId={ConnectionId}, UserId={UserId}, TenantId={TenantId}",
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connectionId, userId, tenantId);
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await base.OnConnectedAsync();
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}
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public override async Task OnDisconnectedAsync(Exception? exception)
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{
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var connectionId = Context.ConnectionId;
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if (exception != null)
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{
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_logger.LogError(exception,
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"MCP client disconnected with error - ConnectionId={ConnectionId}",
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connectionId);
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}
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else
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{
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_logger.LogInformation(
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"MCP client disconnected - ConnectionId={ConnectionId}",
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connectionId);
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}
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await base.OnDisconnectedAsync(exception);
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}
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/// <summary>
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/// Subscribe to receive notifications for a specific pending change
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/// </summary>
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/// <param name="pendingChangeId">The pending change ID to subscribe to</param>
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public async Task SubscribeToPendingChange(Guid pendingChangeId)
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{
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var groupName = GetPendingChangeGroupName(pendingChangeId);
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await Groups.AddToGroupAsync(Context.ConnectionId, groupName);
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_logger.LogInformation(
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"Client subscribed - ConnectionId={ConnectionId}, GroupName={GroupName}, PendingChangeId={PendingChangeId}",
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Context.ConnectionId, groupName, pendingChangeId);
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}
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/// <summary>
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/// Unsubscribe from receiving notifications for a specific pending change
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/// </summary>
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/// <param name="pendingChangeId">The pending change ID to unsubscribe from</param>
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public async Task UnsubscribeFromPendingChange(Guid pendingChangeId)
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{
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var groupName = GetPendingChangeGroupName(pendingChangeId);
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await Groups.RemoveFromGroupAsync(Context.ConnectionId, groupName);
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_logger.LogInformation(
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"Client unsubscribed - ConnectionId={ConnectionId}, GroupName={GroupName}, PendingChangeId={PendingChangeId}",
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Context.ConnectionId, groupName, pendingChangeId);
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}
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/// <summary>
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/// Get the SignalR group name for a pending change
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/// </summary>
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/// <param name="pendingChangeId">The pending change ID</param>
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/// <returns>The group name</returns>
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private static string GetPendingChangeGroupName(Guid pendingChangeId)
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{
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return $"pending-change-{pendingChangeId}";
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}
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}
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@@ -225,6 +225,7 @@ app.MapHealthChecks("/health");
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// Map SignalR Hubs (after UseAuthorization)
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app.MapHub<ProjectHub>("/hubs/project");
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app.MapHub<NotificationHub>("/hubs/notification");
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app.MapHub<McpNotificationHub>("/hubs/mcp-notifications");
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// ============================================
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// Auto-migrate databases in development
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@@ -0,0 +1,18 @@
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namespace ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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/// <summary>
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/// Notification sent when a PendingChange has been successfully applied
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/// (after approval and execution)
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/// </summary>
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public sealed record PendingChangeAppliedNotification : PendingChangeNotification
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{
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/// <summary>
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/// Result of applying the change
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/// </summary>
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public required string Result { get; init; }
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/// <summary>
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/// When the change was applied (UTC)
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/// </summary>
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public required DateTime AppliedAt { get; init; }
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}
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@@ -0,0 +1,32 @@
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namespace ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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/// <summary>
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/// Notification sent when a PendingChange is approved and executed
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/// </summary>
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public sealed record PendingChangeApprovedNotification : PendingChangeNotification
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{
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/// <summary>
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/// Type of entity that was changed
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/// </summary>
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public required string EntityType { get; init; }
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/// <summary>
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/// Operation that was performed
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/// </summary>
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public required string Operation { get; init; }
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/// <summary>
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/// ID of the entity that was created/updated (if applicable)
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/// </summary>
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public Guid? EntityId { get; init; }
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/// <summary>
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/// ID of the user who approved the change
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/// </summary>
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public required Guid ApprovedBy { get; init; }
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/// <summary>
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/// Result of executing the change (e.g., "Epic created: {id} - {name}")
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/// </summary>
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public string? ExecutionResult { get; init; }
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}
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@@ -0,0 +1,22 @@
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namespace ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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/// <summary>
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/// Notification sent when a new PendingChange is created
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/// </summary>
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public sealed record PendingChangeCreatedNotification : PendingChangeNotification
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{
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/// <summary>
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/// Type of entity being changed (Epic, Story, Task, etc.)
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/// </summary>
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public required string EntityType { get; init; }
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/// <summary>
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/// Operation being performed (CREATE, UPDATE, DELETE)
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/// </summary>
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public required string Operation { get; init; }
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/// <summary>
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/// Summary of what will be changed
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/// </summary>
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public required string Summary { get; init; }
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}
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@@ -0,0 +1,12 @@
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namespace ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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/// <summary>
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/// Notification sent when a PendingChange expires (timeout)
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/// </summary>
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public sealed record PendingChangeExpiredNotification : PendingChangeNotification
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{
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/// <summary>
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/// When the pending change expired (UTC)
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/// </summary>
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public required DateTime ExpiredAt { get; init; }
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}
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@@ -0,0 +1,32 @@
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namespace ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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/// <summary>
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/// Base class for all PendingChange notifications
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/// </summary>
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public abstract record PendingChangeNotification
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{
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/// <summary>
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/// Type of notification (PendingChangeCreated, PendingChangeApproved, etc.)
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/// </summary>
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public required string NotificationType { get; init; }
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/// <summary>
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/// The ID of the pending change
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/// </summary>
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public required Guid PendingChangeId { get; init; }
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/// <summary>
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/// The tool that created the pending change
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/// </summary>
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public required string ToolName { get; init; }
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/// <summary>
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/// When this notification was generated (UTC)
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/// </summary>
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public DateTime Timestamp { get; init; } = DateTime.UtcNow;
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/// <summary>
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/// Tenant ID for multi-tenancy support
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/// </summary>
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public required Guid TenantId { get; init; }
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}
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@@ -0,0 +1,17 @@
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namespace ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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/// <summary>
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/// Notification sent when a PendingChange is rejected
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/// </summary>
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public sealed record PendingChangeRejectedNotification : PendingChangeNotification
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{
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/// <summary>
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/// Reason for rejection
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/// </summary>
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public required string Reason { get; init; }
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/// <summary>
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/// ID of the user who rejected the change
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/// </summary>
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public required Guid RejectedBy { get; init; }
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}
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@@ -0,0 +1,60 @@
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using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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using ColaFlow.Modules.Mcp.Application.Services;
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using ColaFlow.Modules.Mcp.Domain.Events;
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using MediatR;
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using Microsoft.Extensions.Logging;
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namespace ColaFlow.Modules.Mcp.Application.EventHandlers;
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/// <summary>
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/// Event handler that sends SignalR notifications when a PendingChange is applied
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/// </summary>
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public class PendingChangeAppliedNotificationHandler : INotificationHandler<PendingChangeAppliedEvent>
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{
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private readonly IMcpNotificationService _notificationService;
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private readonly ILogger<PendingChangeAppliedNotificationHandler> _logger;
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public PendingChangeAppliedNotificationHandler(
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IMcpNotificationService notificationService,
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ILogger<PendingChangeAppliedNotificationHandler> logger)
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{
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_notificationService = notificationService ?? throw new ArgumentNullException(nameof(notificationService));
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_logger = logger ?? throw new ArgumentNullException(nameof(logger));
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}
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public async Task Handle(PendingChangeAppliedEvent notification, CancellationToken cancellationToken)
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{
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_logger.LogInformation(
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"Handling PendingChangeAppliedEvent for notification - PendingChangeId={PendingChangeId}, Result={Result}",
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notification.PendingChangeId, notification.Result);
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try
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{
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// Create notification DTO
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var notificationDto = new PendingChangeAppliedNotification
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{
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NotificationType = "PendingChangeApplied",
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PendingChangeId = notification.PendingChangeId,
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ToolName = notification.ToolName,
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Result = notification.Result,
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AppliedAt = DateTime.UtcNow,
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TenantId = notification.TenantId,
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Timestamp = DateTime.UtcNow
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};
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// Send notification via SignalR
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await _notificationService.NotifyPendingChangeAppliedAsync(notificationDto, cancellationToken);
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_logger.LogInformation(
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"PendingChangeApplied notification sent successfully - PendingChangeId={PendingChangeId}",
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notification.PendingChangeId);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex,
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"Failed to send PendingChangeApplied notification - PendingChangeId={PendingChangeId}",
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notification.PendingChangeId);
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// Don't rethrow - notification failure shouldn't break the main flow
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}
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}
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}
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@@ -0,0 +1,63 @@
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using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
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using ColaFlow.Modules.Mcp.Application.Services;
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using ColaFlow.Modules.Mcp.Domain.Events;
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using MediatR;
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using Microsoft.Extensions.Logging;
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namespace ColaFlow.Modules.Mcp.Application.EventHandlers;
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/// <summary>
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/// Event handler that sends SignalR notifications when a PendingChange is approved
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/// Runs in parallel with PendingChangeApprovedEventHandler (which executes the change)
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/// </summary>
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public class PendingChangeApprovedNotificationHandler : INotificationHandler<PendingChangeApprovedEvent>
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{
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private readonly IMcpNotificationService _notificationService;
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private readonly ILogger<PendingChangeApprovedNotificationHandler> _logger;
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public PendingChangeApprovedNotificationHandler(
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IMcpNotificationService notificationService,
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ILogger<PendingChangeApprovedNotificationHandler> logger)
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{
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_notificationService = notificationService ?? throw new ArgumentNullException(nameof(notificationService));
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_logger = logger ?? throw new ArgumentNullException(nameof(logger));
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}
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public async Task Handle(PendingChangeApprovedEvent notification, CancellationToken cancellationToken)
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{
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_logger.LogInformation(
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"Handling PendingChangeApprovedEvent for notification - PendingChangeId={PendingChangeId}, EntityType={EntityType}",
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notification.PendingChangeId, notification.Diff.EntityType);
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try
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{
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// Create notification DTO
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var notificationDto = new PendingChangeApprovedNotification
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{
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NotificationType = "PendingChangeApproved",
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PendingChangeId = notification.PendingChangeId,
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ToolName = notification.ToolName,
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EntityType = notification.Diff.EntityType,
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Operation = notification.Diff.Operation,
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EntityId = notification.Diff.EntityId,
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ApprovedBy = notification.ApprovedBy,
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TenantId = notification.TenantId,
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Timestamp = DateTime.UtcNow
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};
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// Send notification via SignalR
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await _notificationService.NotifyPendingChangeApprovedAsync(notificationDto, cancellationToken);
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_logger.LogInformation(
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"PendingChangeApproved notification sent successfully - PendingChangeId={PendingChangeId}",
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notification.PendingChangeId);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex,
|
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"Failed to send PendingChangeApproved notification - PendingChangeId={PendingChangeId}",
|
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notification.PendingChangeId);
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// Don't rethrow - notification failure shouldn't break the main flow
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}
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}
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}
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@@ -0,0 +1,76 @@
|
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using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
|
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using ColaFlow.Modules.Mcp.Application.Services;
|
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using ColaFlow.Modules.Mcp.Domain.Entities;
|
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using ColaFlow.Modules.Mcp.Domain.Events;
|
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using ColaFlow.Modules.Mcp.Domain.Repositories;
|
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using MediatR;
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using Microsoft.Extensions.Logging;
|
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|
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namespace ColaFlow.Modules.Mcp.Application.EventHandlers;
|
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|
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/// <summary>
|
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/// Event handler that sends SignalR notifications when a PendingChange is created
|
||||
/// </summary>
|
||||
public class PendingChangeCreatedNotificationHandler : INotificationHandler<PendingChangeCreatedEvent>
|
||||
{
|
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private readonly IMcpNotificationService _notificationService;
|
||||
private readonly IPendingChangeRepository _repository;
|
||||
private readonly ILogger<PendingChangeCreatedNotificationHandler> _logger;
|
||||
|
||||
public PendingChangeCreatedNotificationHandler(
|
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IMcpNotificationService notificationService,
|
||||
IPendingChangeRepository repository,
|
||||
ILogger<PendingChangeCreatedNotificationHandler> logger)
|
||||
{
|
||||
_notificationService = notificationService ?? throw new ArgumentNullException(nameof(notificationService));
|
||||
_repository = repository ?? throw new ArgumentNullException(nameof(repository));
|
||||
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
|
||||
}
|
||||
|
||||
public async Task Handle(PendingChangeCreatedEvent notification, CancellationToken cancellationToken)
|
||||
{
|
||||
_logger.LogInformation(
|
||||
"Handling PendingChangeCreatedEvent - PendingChangeId={PendingChangeId}, EntityType={EntityType}, Operation={Operation}",
|
||||
notification.PendingChangeId, notification.EntityType, notification.Operation);
|
||||
|
||||
try
|
||||
{
|
||||
// Get PendingChange for summary
|
||||
var pendingChange = await _repository.GetByIdAsync(notification.PendingChangeId, cancellationToken);
|
||||
if (pendingChange == null)
|
||||
{
|
||||
_logger.LogWarning(
|
||||
"PendingChange not found - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
return;
|
||||
}
|
||||
|
||||
// Create notification DTO
|
||||
var notificationDto = new PendingChangeCreatedNotification
|
||||
{
|
||||
NotificationType = "PendingChangeCreated",
|
||||
PendingChangeId = notification.PendingChangeId,
|
||||
ToolName = notification.ToolName,
|
||||
EntityType = notification.EntityType,
|
||||
Operation = notification.Operation,
|
||||
Summary = pendingChange.GetSummary(),
|
||||
TenantId = notification.TenantId,
|
||||
Timestamp = DateTime.UtcNow
|
||||
};
|
||||
|
||||
// Send notification via SignalR
|
||||
await _notificationService.NotifyPendingChangeCreatedAsync(notificationDto, cancellationToken);
|
||||
|
||||
_logger.LogInformation(
|
||||
"PendingChangeCreated notification sent successfully - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex,
|
||||
"Failed to send PendingChangeCreated notification - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
// Don't rethrow - notification failure shouldn't break the main flow
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,59 @@
|
||||
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 expires
|
||||
/// </summary>
|
||||
public class PendingChangeExpiredNotificationHandler : INotificationHandler<PendingChangeExpiredEvent>
|
||||
{
|
||||
private readonly IMcpNotificationService _notificationService;
|
||||
private readonly ILogger<PendingChangeExpiredNotificationHandler> _logger;
|
||||
|
||||
public PendingChangeExpiredNotificationHandler(
|
||||
IMcpNotificationService notificationService,
|
||||
ILogger<PendingChangeExpiredNotificationHandler> logger)
|
||||
{
|
||||
_notificationService = notificationService ?? throw new ArgumentNullException(nameof(notificationService));
|
||||
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
|
||||
}
|
||||
|
||||
public async Task Handle(PendingChangeExpiredEvent notification, CancellationToken cancellationToken)
|
||||
{
|
||||
_logger.LogInformation(
|
||||
"Handling PendingChangeExpiredEvent for notification - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
|
||||
try
|
||||
{
|
||||
// Create notification DTO
|
||||
var notificationDto = new PendingChangeExpiredNotification
|
||||
{
|
||||
NotificationType = "PendingChangeExpired",
|
||||
PendingChangeId = notification.PendingChangeId,
|
||||
ToolName = notification.ToolName,
|
||||
TenantId = notification.TenantId,
|
||||
ExpiredAt = DateTime.UtcNow,
|
||||
Timestamp = DateTime.UtcNow
|
||||
};
|
||||
|
||||
// Send notification via SignalR
|
||||
await _notificationService.NotifyPendingChangeExpiredAsync(notificationDto, cancellationToken);
|
||||
|
||||
_logger.LogInformation(
|
||||
"PendingChangeExpired notification sent successfully - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex,
|
||||
"Failed to send PendingChangeExpired notification - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
// Don't rethrow - notification failure shouldn't break the main flow
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,60 @@
|
||||
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 rejected
|
||||
/// </summary>
|
||||
public class PendingChangeRejectedNotificationHandler : INotificationHandler<PendingChangeRejectedEvent>
|
||||
{
|
||||
private readonly IMcpNotificationService _notificationService;
|
||||
private readonly ILogger<PendingChangeRejectedNotificationHandler> _logger;
|
||||
|
||||
public PendingChangeRejectedNotificationHandler(
|
||||
IMcpNotificationService notificationService,
|
||||
ILogger<PendingChangeRejectedNotificationHandler> logger)
|
||||
{
|
||||
_notificationService = notificationService ?? throw new ArgumentNullException(nameof(notificationService));
|
||||
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
|
||||
}
|
||||
|
||||
public async Task Handle(PendingChangeRejectedEvent notification, CancellationToken cancellationToken)
|
||||
{
|
||||
_logger.LogInformation(
|
||||
"Handling PendingChangeRejectedEvent for notification - PendingChangeId={PendingChangeId}, Reason={Reason}",
|
||||
notification.PendingChangeId, notification.Reason);
|
||||
|
||||
try
|
||||
{
|
||||
// Create notification DTO
|
||||
var notificationDto = new PendingChangeRejectedNotification
|
||||
{
|
||||
NotificationType = "PendingChangeRejected",
|
||||
PendingChangeId = notification.PendingChangeId,
|
||||
ToolName = notification.ToolName,
|
||||
Reason = notification.Reason,
|
||||
RejectedBy = notification.RejectedBy,
|
||||
TenantId = notification.TenantId,
|
||||
Timestamp = DateTime.UtcNow
|
||||
};
|
||||
|
||||
// Send notification via SignalR
|
||||
await _notificationService.NotifyPendingChangeRejectedAsync(notificationDto, cancellationToken);
|
||||
|
||||
_logger.LogInformation(
|
||||
"PendingChangeRejected notification sent successfully - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex,
|
||||
"Failed to send PendingChangeRejected notification - PendingChangeId={PendingChangeId}",
|
||||
notification.PendingChangeId);
|
||||
// Don't rethrow - notification failure shouldn't break the main flow
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
|
||||
|
||||
namespace ColaFlow.Modules.Mcp.Application.Services;
|
||||
|
||||
/// <summary>
|
||||
/// Service for sending real-time notifications to MCP clients via SignalR
|
||||
/// </summary>
|
||||
public interface IMcpNotificationService
|
||||
{
|
||||
/// <summary>
|
||||
/// Notify that a new PendingChange was created
|
||||
/// </summary>
|
||||
Task NotifyPendingChangeCreatedAsync(
|
||||
PendingChangeCreatedNotification notification,
|
||||
CancellationToken cancellationToken = default);
|
||||
|
||||
/// <summary>
|
||||
/// Notify that a PendingChange was approved
|
||||
/// </summary>
|
||||
Task NotifyPendingChangeApprovedAsync(
|
||||
PendingChangeApprovedNotification notification,
|
||||
CancellationToken cancellationToken = default);
|
||||
|
||||
/// <summary>
|
||||
/// Notify that a PendingChange was rejected
|
||||
/// </summary>
|
||||
Task NotifyPendingChangeRejectedAsync(
|
||||
PendingChangeRejectedNotification notification,
|
||||
CancellationToken cancellationToken = default);
|
||||
|
||||
/// <summary>
|
||||
/// Notify that a PendingChange was applied successfully
|
||||
/// </summary>
|
||||
Task NotifyPendingChangeAppliedAsync(
|
||||
PendingChangeAppliedNotification notification,
|
||||
CancellationToken cancellationToken = default);
|
||||
|
||||
/// <summary>
|
||||
/// Notify that a PendingChange expired
|
||||
/// </summary>
|
||||
Task NotifyPendingChangeExpiredAsync(
|
||||
PendingChangeExpiredNotification notification,
|
||||
CancellationToken cancellationToken = default);
|
||||
}
|
||||
@@ -7,6 +7,7 @@ using ColaFlow.Modules.Mcp.Infrastructure.BackgroundServices;
|
||||
using ColaFlow.Modules.Mcp.Infrastructure.Middleware;
|
||||
using ColaFlow.Modules.Mcp.Infrastructure.Persistence;
|
||||
using ColaFlow.Modules.Mcp.Infrastructure.Persistence.Repositories;
|
||||
using ColaFlow.Modules.Mcp.Infrastructure.Services;
|
||||
using Microsoft.AspNetCore.Builder;
|
||||
using Microsoft.EntityFrameworkCore;
|
||||
using Microsoft.Extensions.Configuration;
|
||||
@@ -44,6 +45,9 @@ public static class McpServiceExtensions
|
||||
services.AddScoped<IMcpApiKeyService, McpApiKeyService>();
|
||||
services.AddScoped<IPendingChangeService, PendingChangeService>();
|
||||
|
||||
// Register notification service (SignalR real-time notifications)
|
||||
services.AddScoped<IMcpNotificationService, McpNotificationService>();
|
||||
|
||||
// Register background services
|
||||
services.AddHostedService<PendingChangeExpirationBackgroundService>();
|
||||
|
||||
|
||||
@@ -0,0 +1,135 @@
|
||||
using ColaFlow.API.Hubs;
|
||||
using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
|
||||
using ColaFlow.Modules.Mcp.Application.Services;
|
||||
using Microsoft.AspNetCore.SignalR;
|
||||
using Microsoft.Extensions.Logging;
|
||||
|
||||
namespace ColaFlow.Modules.Mcp.Infrastructure.Services;
|
||||
|
||||
/// <summary>
|
||||
/// Implementation of IMcpNotificationService using SignalR
|
||||
/// </summary>
|
||||
public class McpNotificationService : IMcpNotificationService
|
||||
{
|
||||
private readonly IHubContext<McpNotificationHub> _hubContext;
|
||||
private readonly ILogger<McpNotificationService> _logger;
|
||||
|
||||
public McpNotificationService(
|
||||
IHubContext<McpNotificationHub> hubContext,
|
||||
ILogger<McpNotificationService> logger)
|
||||
{
|
||||
_hubContext = hubContext ?? throw new ArgumentNullException(nameof(hubContext));
|
||||
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
|
||||
}
|
||||
|
||||
public async Task NotifyPendingChangeCreatedAsync(
|
||||
PendingChangeCreatedNotification notification,
|
||||
CancellationToken cancellationToken = default)
|
||||
{
|
||||
var groupName = GetPendingChangeGroupName(notification.PendingChangeId);
|
||||
var tenantGroupName = GetTenantGroupName(notification.TenantId);
|
||||
|
||||
_logger.LogInformation(
|
||||
"Sending PendingChangeCreated notification - PendingChangeId={PendingChangeId}, EntityType={EntityType}, Operation={Operation}",
|
||||
notification.PendingChangeId, notification.EntityType, notification.Operation);
|
||||
|
||||
// Send to both: specific pending change subscribers AND all tenant members
|
||||
await _hubContext.Clients
|
||||
.Groups(groupName, tenantGroupName)
|
||||
.SendAsync("PendingChangeCreated", notification, cancellationToken);
|
||||
|
||||
_logger.LogDebug(
|
||||
"PendingChangeCreated notification sent - Groups=[{GroupName}, {TenantGroupName}]",
|
||||
groupName, tenantGroupName);
|
||||
}
|
||||
|
||||
public async Task NotifyPendingChangeApprovedAsync(
|
||||
PendingChangeApprovedNotification notification,
|
||||
CancellationToken cancellationToken = default)
|
||||
{
|
||||
var groupName = GetPendingChangeGroupName(notification.PendingChangeId);
|
||||
var tenantGroupName = GetTenantGroupName(notification.TenantId);
|
||||
|
||||
_logger.LogInformation(
|
||||
"Sending PendingChangeApproved notification - PendingChangeId={PendingChangeId}, EntityType={EntityType}, ApprovedBy={ApprovedBy}",
|
||||
notification.PendingChangeId, notification.EntityType, notification.ApprovedBy);
|
||||
|
||||
await _hubContext.Clients
|
||||
.Groups(groupName, tenantGroupName)
|
||||
.SendAsync("PendingChangeApproved", notification, cancellationToken);
|
||||
|
||||
_logger.LogDebug(
|
||||
"PendingChangeApproved notification sent - Groups=[{GroupName}, {TenantGroupName}]",
|
||||
groupName, tenantGroupName);
|
||||
}
|
||||
|
||||
public async Task NotifyPendingChangeRejectedAsync(
|
||||
PendingChangeRejectedNotification notification,
|
||||
CancellationToken cancellationToken = default)
|
||||
{
|
||||
var groupName = GetPendingChangeGroupName(notification.PendingChangeId);
|
||||
var tenantGroupName = GetTenantGroupName(notification.TenantId);
|
||||
|
||||
_logger.LogInformation(
|
||||
"Sending PendingChangeRejected notification - PendingChangeId={PendingChangeId}, Reason={Reason}, RejectedBy={RejectedBy}",
|
||||
notification.PendingChangeId, notification.Reason, notification.RejectedBy);
|
||||
|
||||
await _hubContext.Clients
|
||||
.Groups(groupName, tenantGroupName)
|
||||
.SendAsync("PendingChangeRejected", notification, cancellationToken);
|
||||
|
||||
_logger.LogDebug(
|
||||
"PendingChangeRejected notification sent - Groups=[{GroupName}, {TenantGroupName}]",
|
||||
groupName, tenantGroupName);
|
||||
}
|
||||
|
||||
public async Task NotifyPendingChangeAppliedAsync(
|
||||
PendingChangeAppliedNotification notification,
|
||||
CancellationToken cancellationToken = default)
|
||||
{
|
||||
var groupName = GetPendingChangeGroupName(notification.PendingChangeId);
|
||||
var tenantGroupName = GetTenantGroupName(notification.TenantId);
|
||||
|
||||
_logger.LogInformation(
|
||||
"Sending PendingChangeApplied notification - PendingChangeId={PendingChangeId}, Result={Result}",
|
||||
notification.PendingChangeId, notification.Result);
|
||||
|
||||
await _hubContext.Clients
|
||||
.Groups(groupName, tenantGroupName)
|
||||
.SendAsync("PendingChangeApplied", notification, cancellationToken);
|
||||
|
||||
_logger.LogDebug(
|
||||
"PendingChangeApplied notification sent - Groups=[{GroupName}, {TenantGroupName}]",
|
||||
groupName, tenantGroupName);
|
||||
}
|
||||
|
||||
public async Task NotifyPendingChangeExpiredAsync(
|
||||
PendingChangeExpiredNotification notification,
|
||||
CancellationToken cancellationToken = default)
|
||||
{
|
||||
var groupName = GetPendingChangeGroupName(notification.PendingChangeId);
|
||||
var tenantGroupName = GetTenantGroupName(notification.TenantId);
|
||||
|
||||
_logger.LogInformation(
|
||||
"Sending PendingChangeExpired notification - PendingChangeId={PendingChangeId}, ExpiredAt={ExpiredAt}",
|
||||
notification.PendingChangeId, notification.ExpiredAt);
|
||||
|
||||
await _hubContext.Clients
|
||||
.Groups(groupName, tenantGroupName)
|
||||
.SendAsync("PendingChangeExpired", notification, cancellationToken);
|
||||
|
||||
_logger.LogDebug(
|
||||
"PendingChangeExpired notification sent - Groups=[{GroupName}, {TenantGroupName}]",
|
||||
groupName, tenantGroupName);
|
||||
}
|
||||
|
||||
private static string GetPendingChangeGroupName(Guid pendingChangeId)
|
||||
{
|
||||
return $"pending-change-{pendingChangeId}";
|
||||
}
|
||||
|
||||
private static string GetTenantGroupName(Guid tenantId)
|
||||
{
|
||||
return $"tenant-{tenantId}";
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,103 @@
|
||||
using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
|
||||
using ColaFlow.Modules.Mcp.Application.EventHandlers;
|
||||
using ColaFlow.Modules.Mcp.Application.Services;
|
||||
using ColaFlow.Modules.Mcp.Domain.Events;
|
||||
using ColaFlow.Modules.Mcp.Domain.ValueObjects;
|
||||
using Microsoft.Extensions.Logging;
|
||||
using Moq;
|
||||
using Xunit;
|
||||
|
||||
namespace ColaFlow.Modules.Mcp.Tests.EventHandlers;
|
||||
|
||||
public class PendingChangeApprovedNotificationHandlerTests
|
||||
{
|
||||
private readonly Mock<IMcpNotificationService> _mockNotificationService;
|
||||
private readonly Mock<ILogger<PendingChangeApprovedNotificationHandler>> _mockLogger;
|
||||
private readonly PendingChangeApprovedNotificationHandler _handler;
|
||||
|
||||
public PendingChangeApprovedNotificationHandlerTests()
|
||||
{
|
||||
_mockNotificationService = new Mock<IMcpNotificationService>();
|
||||
_mockLogger = new Mock<ILogger<PendingChangeApprovedNotificationHandler>>();
|
||||
|
||||
_handler = new PendingChangeApprovedNotificationHandler(
|
||||
_mockNotificationService.Object,
|
||||
_mockLogger.Object);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task Handle_SendsNotification_WithCorrectData()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var approvedBy = Guid.NewGuid();
|
||||
var entityId = Guid.NewGuid();
|
||||
|
||||
var diff = new DiffPreview(
|
||||
"CREATE",
|
||||
"Epic",
|
||||
entityId,
|
||||
null,
|
||||
null,
|
||||
"{\"name\":\"Test Epic\"}",
|
||||
new List<DiffField>());
|
||||
|
||||
var domainEvent = new PendingChangeApprovedEvent(
|
||||
pendingChangeId,
|
||||
"create_epic",
|
||||
diff,
|
||||
approvedBy,
|
||||
tenantId);
|
||||
|
||||
// Act
|
||||
await _handler.Handle(domainEvent, CancellationToken.None);
|
||||
|
||||
// Assert
|
||||
_mockNotificationService.Verify(
|
||||
s => s.NotifyPendingChangeApprovedAsync(
|
||||
It.Is<PendingChangeApprovedNotification>(n =>
|
||||
n.PendingChangeId == pendingChangeId &&
|
||||
n.ToolName == "create_epic" &&
|
||||
n.EntityType == "Epic" &&
|
||||
n.Operation == "CREATE" &&
|
||||
n.EntityId == entityId &&
|
||||
n.ApprovedBy == approvedBy &&
|
||||
n.TenantId == tenantId),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task Handle_DoesNotThrow_WhenNotificationServiceFails()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var approvedBy = Guid.NewGuid();
|
||||
|
||||
var diff = new DiffPreview(
|
||||
"CREATE",
|
||||
"Epic",
|
||||
null,
|
||||
null,
|
||||
null,
|
||||
"{\"name\":\"Test Epic\"}",
|
||||
new List<DiffField>());
|
||||
|
||||
var domainEvent = new PendingChangeApprovedEvent(
|
||||
pendingChangeId,
|
||||
"create_epic",
|
||||
diff,
|
||||
approvedBy,
|
||||
tenantId);
|
||||
|
||||
_mockNotificationService.Setup(s => s.NotifyPendingChangeApprovedAsync(
|
||||
It.IsAny<PendingChangeApprovedNotification>(),
|
||||
It.IsAny<CancellationToken>()))
|
||||
.ThrowsAsync(new Exception("SignalR connection failed"));
|
||||
|
||||
// Act & Assert - Should not throw
|
||||
await _handler.Handle(domainEvent, CancellationToken.None);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,153 @@
|
||||
using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
|
||||
using ColaFlow.Modules.Mcp.Application.EventHandlers;
|
||||
using ColaFlow.Modules.Mcp.Application.Services;
|
||||
using ColaFlow.Modules.Mcp.Domain.Entities;
|
||||
using ColaFlow.Modules.Mcp.Domain.Events;
|
||||
using ColaFlow.Modules.Mcp.Domain.Repositories;
|
||||
using ColaFlow.Modules.Mcp.Domain.ValueObjects;
|
||||
using Microsoft.Extensions.Logging;
|
||||
using Moq;
|
||||
using Xunit;
|
||||
|
||||
namespace ColaFlow.Modules.Mcp.Tests.EventHandlers;
|
||||
|
||||
public class PendingChangeCreatedNotificationHandlerTests
|
||||
{
|
||||
private readonly Mock<IMcpNotificationService> _mockNotificationService;
|
||||
private readonly Mock<IPendingChangeRepository> _mockRepository;
|
||||
private readonly Mock<ILogger<PendingChangeCreatedNotificationHandler>> _mockLogger;
|
||||
private readonly PendingChangeCreatedNotificationHandler _handler;
|
||||
|
||||
public PendingChangeCreatedNotificationHandlerTests()
|
||||
{
|
||||
_mockNotificationService = new Mock<IMcpNotificationService>();
|
||||
_mockRepository = new Mock<IPendingChangeRepository>();
|
||||
_mockLogger = new Mock<ILogger<PendingChangeCreatedNotificationHandler>>();
|
||||
|
||||
_handler = new PendingChangeCreatedNotificationHandler(
|
||||
_mockNotificationService.Object,
|
||||
_mockRepository.Object,
|
||||
_mockLogger.Object);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task Handle_SendsNotification_WhenPendingChangeExists()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var apiKeyId = Guid.NewGuid();
|
||||
|
||||
var domainEvent = new PendingChangeCreatedEvent(
|
||||
pendingChangeId,
|
||||
"create_epic",
|
||||
"Epic",
|
||||
"CREATE",
|
||||
tenantId);
|
||||
|
||||
var diff = new DiffPreview(
|
||||
"CREATE",
|
||||
"Epic",
|
||||
null,
|
||||
null,
|
||||
null,
|
||||
"{\"name\":\"Test Epic\"}",
|
||||
new List<DiffField>());
|
||||
|
||||
var pendingChange = PendingChange.Create(
|
||||
"create_epic",
|
||||
diff,
|
||||
tenantId,
|
||||
apiKeyId,
|
||||
12);
|
||||
|
||||
_mockRepository.Setup(r => r.GetByIdAsync(pendingChangeId, It.IsAny<CancellationToken>()))
|
||||
.ReturnsAsync(pendingChange);
|
||||
|
||||
// Act
|
||||
await _handler.Handle(domainEvent, CancellationToken.None);
|
||||
|
||||
// Assert
|
||||
_mockNotificationService.Verify(
|
||||
s => s.NotifyPendingChangeCreatedAsync(
|
||||
It.Is<PendingChangeCreatedNotification>(n =>
|
||||
n.PendingChangeId == pendingChangeId &&
|
||||
n.ToolName == "create_epic" &&
|
||||
n.EntityType == "Epic" &&
|
||||
n.Operation == "CREATE" &&
|
||||
n.TenantId == tenantId),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task Handle_DoesNotSendNotification_WhenPendingChangeNotFound()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
|
||||
var domainEvent = new PendingChangeCreatedEvent(
|
||||
pendingChangeId,
|
||||
"create_epic",
|
||||
"Epic",
|
||||
"CREATE",
|
||||
tenantId);
|
||||
|
||||
_mockRepository.Setup(r => r.GetByIdAsync(pendingChangeId, It.IsAny<CancellationToken>()))
|
||||
.ReturnsAsync((PendingChange?)null);
|
||||
|
||||
// Act
|
||||
await _handler.Handle(domainEvent, CancellationToken.None);
|
||||
|
||||
// Assert
|
||||
_mockNotificationService.Verify(
|
||||
s => s.NotifyPendingChangeCreatedAsync(
|
||||
It.IsAny<PendingChangeCreatedNotification>(),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Never);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task Handle_DoesNotThrow_WhenNotificationServiceFails()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var apiKeyId = Guid.NewGuid();
|
||||
|
||||
var domainEvent = new PendingChangeCreatedEvent(
|
||||
pendingChangeId,
|
||||
"create_epic",
|
||||
"Epic",
|
||||
"CREATE",
|
||||
tenantId);
|
||||
|
||||
var diff = new DiffPreview(
|
||||
"CREATE",
|
||||
"Epic",
|
||||
null,
|
||||
null,
|
||||
null,
|
||||
"{\"name\":\"Test Epic\"}",
|
||||
new List<DiffField>());
|
||||
|
||||
var pendingChange = PendingChange.Create(
|
||||
"create_epic",
|
||||
diff,
|
||||
tenantId,
|
||||
apiKeyId,
|
||||
12);
|
||||
|
||||
_mockRepository.Setup(r => r.GetByIdAsync(pendingChangeId, It.IsAny<CancellationToken>()))
|
||||
.ReturnsAsync(pendingChange);
|
||||
|
||||
_mockNotificationService.Setup(s => s.NotifyPendingChangeCreatedAsync(
|
||||
It.IsAny<PendingChangeCreatedNotification>(),
|
||||
It.IsAny<CancellationToken>()))
|
||||
.ThrowsAsync(new Exception("SignalR connection failed"));
|
||||
|
||||
// Act & Assert - Should not throw
|
||||
await _handler.Handle(domainEvent, CancellationToken.None);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,233 @@
|
||||
using ColaFlow.API.Hubs;
|
||||
using ColaFlow.Modules.Mcp.Application.DTOs.Notifications;
|
||||
using ColaFlow.Modules.Mcp.Infrastructure.Services;
|
||||
using Microsoft.AspNetCore.SignalR;
|
||||
using Microsoft.Extensions.Logging;
|
||||
using Moq;
|
||||
using Xunit;
|
||||
|
||||
namespace ColaFlow.Modules.Mcp.Tests.Services;
|
||||
|
||||
public class McpNotificationServiceTests
|
||||
{
|
||||
private readonly Mock<IHubContext<McpNotificationHub>> _mockHubContext;
|
||||
private readonly Mock<ILogger<McpNotificationService>> _mockLogger;
|
||||
private readonly Mock<IHubClients> _mockClients;
|
||||
private readonly Mock<IClientProxy> _mockClientProxy;
|
||||
private readonly McpNotificationService _service;
|
||||
|
||||
public McpNotificationServiceTests()
|
||||
{
|
||||
_mockHubContext = new Mock<IHubContext<McpNotificationHub>>();
|
||||
_mockLogger = new Mock<ILogger<McpNotificationService>>();
|
||||
_mockClients = new Mock<IHubClients>();
|
||||
_mockClientProxy = new Mock<IClientProxy>();
|
||||
|
||||
_mockHubContext.Setup(h => h.Clients).Returns(_mockClients.Object);
|
||||
|
||||
_service = new McpNotificationService(_mockHubContext.Object, _mockLogger.Object);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task NotifyPendingChangeCreatedAsync_SendsNotificationToCorrectGroups()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var notification = new PendingChangeCreatedNotification
|
||||
{
|
||||
NotificationType = "PendingChangeCreated",
|
||||
PendingChangeId = pendingChangeId,
|
||||
ToolName = "create_epic",
|
||||
EntityType = "Epic",
|
||||
Operation = "CREATE",
|
||||
Summary = "Create Epic: Test Epic",
|
||||
TenantId = tenantId
|
||||
};
|
||||
|
||||
_mockClients.Setup(c => c.Groups(It.IsAny<string>(), It.IsAny<string>()))
|
||||
.Returns(_mockClientProxy.Object);
|
||||
|
||||
// Act
|
||||
await _service.NotifyPendingChangeCreatedAsync(notification);
|
||||
|
||||
// Assert
|
||||
_mockClients.Verify(
|
||||
c => c.Groups($"pending-change-{pendingChangeId}", $"tenant-{tenantId}"),
|
||||
Times.Once);
|
||||
|
||||
_mockClientProxy.Verify(
|
||||
p => p.SendCoreAsync(
|
||||
"PendingChangeCreated",
|
||||
It.Is<object[]>(args => args.Length == 1 && args[0] == notification),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task NotifyPendingChangeApprovedAsync_SendsNotificationWithCorrectData()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var approvedBy = Guid.NewGuid();
|
||||
var entityId = Guid.NewGuid();
|
||||
|
||||
var notification = new PendingChangeApprovedNotification
|
||||
{
|
||||
NotificationType = "PendingChangeApproved",
|
||||
PendingChangeId = pendingChangeId,
|
||||
ToolName = "create_epic",
|
||||
EntityType = "Epic",
|
||||
Operation = "CREATE",
|
||||
EntityId = entityId,
|
||||
ApprovedBy = approvedBy,
|
||||
ExecutionResult = "Epic created: Test Epic",
|
||||
TenantId = tenantId
|
||||
};
|
||||
|
||||
_mockClients.Setup(c => c.Groups(It.IsAny<string>(), It.IsAny<string>()))
|
||||
.Returns(_mockClientProxy.Object);
|
||||
|
||||
// Act
|
||||
await _service.NotifyPendingChangeApprovedAsync(notification);
|
||||
|
||||
// Assert
|
||||
_mockClientProxy.Verify(
|
||||
p => p.SendCoreAsync(
|
||||
"PendingChangeApproved",
|
||||
It.Is<object[]>(args =>
|
||||
args.Length == 1 &&
|
||||
((PendingChangeApprovedNotification)args[0]).ApprovedBy == approvedBy &&
|
||||
((PendingChangeApprovedNotification)args[0]).EntityId == entityId),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task NotifyPendingChangeRejectedAsync_SendsNotificationWithReason()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var rejectedBy = Guid.NewGuid();
|
||||
var reason = "Epic name is too vague";
|
||||
|
||||
var notification = new PendingChangeRejectedNotification
|
||||
{
|
||||
NotificationType = "PendingChangeRejected",
|
||||
PendingChangeId = pendingChangeId,
|
||||
ToolName = "create_epic",
|
||||
Reason = reason,
|
||||
RejectedBy = rejectedBy,
|
||||
TenantId = tenantId
|
||||
};
|
||||
|
||||
_mockClients.Setup(c => c.Groups(It.IsAny<string>(), It.IsAny<string>()))
|
||||
.Returns(_mockClientProxy.Object);
|
||||
|
||||
// Act
|
||||
await _service.NotifyPendingChangeRejectedAsync(notification);
|
||||
|
||||
// Assert
|
||||
_mockClientProxy.Verify(
|
||||
p => p.SendCoreAsync(
|
||||
"PendingChangeRejected",
|
||||
It.Is<object[]>(args =>
|
||||
args.Length == 1 &&
|
||||
((PendingChangeRejectedNotification)args[0]).Reason == reason &&
|
||||
((PendingChangeRejectedNotification)args[0]).RejectedBy == rejectedBy),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task NotifyPendingChangeAppliedAsync_SendsNotificationWithResult()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
var result = "Epic created: abc123 - Test Epic";
|
||||
|
||||
var notification = new PendingChangeAppliedNotification
|
||||
{
|
||||
NotificationType = "PendingChangeApplied",
|
||||
PendingChangeId = pendingChangeId,
|
||||
ToolName = "create_epic",
|
||||
Result = result,
|
||||
AppliedAt = DateTime.UtcNow,
|
||||
TenantId = tenantId
|
||||
};
|
||||
|
||||
_mockClients.Setup(c => c.Groups(It.IsAny<string>(), It.IsAny<string>()))
|
||||
.Returns(_mockClientProxy.Object);
|
||||
|
||||
// Act
|
||||
await _service.NotifyPendingChangeAppliedAsync(notification);
|
||||
|
||||
// Assert
|
||||
_mockClientProxy.Verify(
|
||||
p => p.SendCoreAsync(
|
||||
"PendingChangeApplied",
|
||||
It.Is<object[]>(args =>
|
||||
args.Length == 1 &&
|
||||
((PendingChangeAppliedNotification)args[0]).Result == result),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task NotifyPendingChangeExpiredAsync_SendsNotificationToCorrectGroups()
|
||||
{
|
||||
// Arrange
|
||||
var pendingChangeId = Guid.NewGuid();
|
||||
var tenantId = Guid.NewGuid();
|
||||
|
||||
var notification = new PendingChangeExpiredNotification
|
||||
{
|
||||
NotificationType = "PendingChangeExpired",
|
||||
PendingChangeId = pendingChangeId,
|
||||
ToolName = "create_epic",
|
||||
ExpiredAt = DateTime.UtcNow,
|
||||
TenantId = tenantId
|
||||
};
|
||||
|
||||
_mockClients.Setup(c => c.Groups(It.IsAny<string>(), It.IsAny<string>()))
|
||||
.Returns(_mockClientProxy.Object);
|
||||
|
||||
// Act
|
||||
await _service.NotifyPendingChangeExpiredAsync(notification);
|
||||
|
||||
// Assert
|
||||
_mockClients.Verify(
|
||||
c => c.Groups($"pending-change-{pendingChangeId}", $"tenant-{tenantId}"),
|
||||
Times.Once);
|
||||
|
||||
_mockClientProxy.Verify(
|
||||
p => p.SendCoreAsync(
|
||||
"PendingChangeExpired",
|
||||
It.Is<object[]>(args => args.Length == 1),
|
||||
It.IsAny<CancellationToken>()),
|
||||
Times.Once);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void Constructor_ThrowsArgumentNullException_WhenHubContextIsNull()
|
||||
{
|
||||
// Act & Assert
|
||||
var exception = Assert.Throws<ArgumentNullException>(() =>
|
||||
new McpNotificationService(null!, _mockLogger.Object));
|
||||
|
||||
Assert.Equal("hubContext", exception.ParamName);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void Constructor_ThrowsArgumentNullException_WhenLoggerIsNull()
|
||||
{
|
||||
// Act & Assert
|
||||
var exception = Assert.Throws<ArgumentNullException>(() =>
|
||||
new McpNotificationService(_mockHubContext.Object, null!));
|
||||
|
||||
Assert.Equal("logger", exception.ParamName);
|
||||
}
|
||||
}
|
||||
475
docs/integration/signalr-mcp-client-guide.md
Normal file
475
docs/integration/signalr-mcp-client-guide.md
Normal file
@@ -0,0 +1,475 @@
|
||||
# SignalR MCP Notifications Client Integration Guide
|
||||
|
||||
## Overview
|
||||
|
||||
This guide explains how to integrate with ColaFlow's MCP SignalR Hub to receive real-time notifications about PendingChange status updates.
|
||||
|
||||
## Hub Endpoint
|
||||
|
||||
```
|
||||
wss://your-colaflow-instance.com/hubs/mcp-notifications
|
||||
```
|
||||
|
||||
## Authentication
|
||||
|
||||
The hub requires JWT authentication. Pass the JWT token in the query string:
|
||||
|
||||
```
|
||||
wss://your-colaflow-instance.com/hubs/mcp-notifications?access_token=YOUR_JWT_TOKEN
|
||||
```
|
||||
|
||||
## Notification Types
|
||||
|
||||
The hub sends the following notification types:
|
||||
|
||||
1. **PendingChangeCreated** - A new PendingChange was created
|
||||
2. **PendingChangeApproved** - A PendingChange was approved
|
||||
3. **PendingChangeRejected** - A PendingChange was rejected
|
||||
4. **PendingChangeApplied** - A PendingChange was successfully applied
|
||||
5. **PendingChangeExpired** - A PendingChange expired (timeout)
|
||||
|
||||
## Client Implementation Examples
|
||||
|
||||
### JavaScript/TypeScript (SignalR Client)
|
||||
|
||||
```typescript
|
||||
import * as signalR from "@microsoft/signalr";
|
||||
|
||||
// Create connection
|
||||
const connection = new signalR.HubConnectionBuilder()
|
||||
.withUrl("https://your-colaflow-instance.com/hubs/mcp-notifications", {
|
||||
accessTokenFactory: () => localStorage.getItem("jwt_token") || "",
|
||||
})
|
||||
.withAutomaticReconnect() // Auto-reconnect on disconnect
|
||||
.configureLogging(signalR.LogLevel.Information)
|
||||
.build();
|
||||
|
||||
// Subscribe to PendingChangeCreated
|
||||
connection.on("PendingChangeCreated", (notification) => {
|
||||
console.log("New PendingChange created:", notification);
|
||||
console.log("Summary:", notification.summary);
|
||||
console.log("Entity Type:", notification.entityType);
|
||||
console.log("Operation:", notification.operation);
|
||||
});
|
||||
|
||||
// Subscribe to PendingChangeApproved
|
||||
connection.on("PendingChangeApproved", (notification) => {
|
||||
console.log("PendingChange approved:", notification);
|
||||
console.log("Approved by:", notification.approvedBy);
|
||||
console.log("Entity ID:", notification.entityId);
|
||||
});
|
||||
|
||||
// Subscribe to PendingChangeRejected
|
||||
connection.on("PendingChangeRejected", (notification) => {
|
||||
console.log("PendingChange rejected:", notification);
|
||||
console.log("Reason:", notification.reason);
|
||||
console.log("Rejected by:", notification.rejectedBy);
|
||||
});
|
||||
|
||||
// Subscribe to PendingChangeApplied
|
||||
connection.on("PendingChangeApplied", (notification) => {
|
||||
console.log("PendingChange applied:", notification);
|
||||
console.log("Result:", notification.result);
|
||||
});
|
||||
|
||||
// Subscribe to PendingChangeExpired
|
||||
connection.on("PendingChangeExpired", (notification) => {
|
||||
console.log("PendingChange expired:", notification);
|
||||
});
|
||||
|
||||
// Start connection
|
||||
async function start() {
|
||||
try {
|
||||
await connection.start();
|
||||
console.log("SignalR Connected");
|
||||
} catch (err) {
|
||||
console.error("SignalR Connection Error:", err);
|
||||
setTimeout(start, 5000); // Retry after 5 seconds
|
||||
}
|
||||
}
|
||||
|
||||
// Handle disconnection
|
||||
connection.onclose(async () => {
|
||||
console.log("SignalR Disconnected");
|
||||
await start(); // Reconnect
|
||||
});
|
||||
|
||||
// Start the connection
|
||||
start();
|
||||
```
|
||||
|
||||
### React Hook
|
||||
|
||||
```typescript
|
||||
import { useEffect, useState } from "react";
|
||||
import * as signalR from "@microsoft/signalr";
|
||||
|
||||
export function useMcpNotifications(jwtToken: string) {
|
||||
const [connection, setConnection] = useState<signalR.HubConnection | null>(null);
|
||||
const [isConnected, setIsConnected] = useState(false);
|
||||
|
||||
useEffect(() => {
|
||||
const newConnection = new signalR.HubConnectionBuilder()
|
||||
.withUrl("https://your-colaflow-instance.com/hubs/mcp-notifications", {
|
||||
accessTokenFactory: () => jwtToken,
|
||||
})
|
||||
.withAutomaticReconnect()
|
||||
.build();
|
||||
|
||||
setConnection(newConnection);
|
||||
|
||||
return () => {
|
||||
newConnection.stop();
|
||||
};
|
||||
}, [jwtToken]);
|
||||
|
||||
useEffect(() => {
|
||||
if (connection) {
|
||||
connection
|
||||
.start()
|
||||
.then(() => {
|
||||
console.log("SignalR Connected");
|
||||
setIsConnected(true);
|
||||
})
|
||||
.catch((err) => {
|
||||
console.error("SignalR Connection Error:", err);
|
||||
setIsConnected(false);
|
||||
});
|
||||
|
||||
connection.onclose(() => {
|
||||
console.log("SignalR Disconnected");
|
||||
setIsConnected(false);
|
||||
});
|
||||
}
|
||||
}, [connection]);
|
||||
|
||||
return { connection, isConnected };
|
||||
}
|
||||
|
||||
// Usage in a component
|
||||
function MyComponent() {
|
||||
const jwtToken = localStorage.getItem("jwt_token") || "";
|
||||
const { connection, isConnected } = useMcpNotifications(jwtToken);
|
||||
|
||||
useEffect(() => {
|
||||
if (!connection) return;
|
||||
|
||||
// Subscribe to notifications
|
||||
connection.on("PendingChangeCreated", (notification) => {
|
||||
console.log("New PendingChange:", notification);
|
||||
// Update UI, show toast, etc.
|
||||
});
|
||||
|
||||
connection.on("PendingChangeApproved", (notification) => {
|
||||
console.log("PendingChange approved:", notification);
|
||||
// Update UI, show success message, etc.
|
||||
});
|
||||
|
||||
connection.on("PendingChangeRejected", (notification) => {
|
||||
console.log("PendingChange rejected:", notification);
|
||||
// Update UI, show error message, etc.
|
||||
});
|
||||
|
||||
// Cleanup
|
||||
return () => {
|
||||
connection.off("PendingChangeCreated");
|
||||
connection.off("PendingChangeApproved");
|
||||
connection.off("PendingChangeRejected");
|
||||
};
|
||||
}, [connection]);
|
||||
|
||||
return (
|
||||
<div>
|
||||
<p>Connection Status: {isConnected ? "Connected" : "Disconnected"}</p>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### Python (AI Agent)
|
||||
|
||||
```python
|
||||
import asyncio
|
||||
import json
|
||||
from signalrcore.hub_connection_builder import HubConnectionBuilder
|
||||
|
||||
class McpNotificationClient:
|
||||
def __init__(self, hub_url: str, jwt_token: str):
|
||||
self.hub_url = hub_url
|
||||
self.jwt_token = jwt_token
|
||||
self.connection = None
|
||||
|
||||
def on_pending_change_created(self, notification):
|
||||
print(f"PendingChange created: {notification}")
|
||||
print(f"Summary: {notification['summary']}")
|
||||
|
||||
def on_pending_change_approved(self, notification):
|
||||
print(f"PendingChange approved: {notification}")
|
||||
print(f"Entity ID: {notification['entityId']}")
|
||||
# Continue AI workflow...
|
||||
|
||||
def on_pending_change_rejected(self, notification):
|
||||
print(f"PendingChange rejected: {notification}")
|
||||
print(f"Reason: {notification['reason']}")
|
||||
# Adjust AI behavior...
|
||||
|
||||
def on_pending_change_applied(self, notification):
|
||||
print(f"PendingChange applied: {notification}")
|
||||
print(f"Result: {notification['result']}")
|
||||
|
||||
def on_pending_change_expired(self, notification):
|
||||
print(f"PendingChange expired: {notification}")
|
||||
|
||||
async def start(self):
|
||||
self.connection = HubConnectionBuilder()\
|
||||
.with_url(f"{self.hub_url}?access_token={self.jwt_token}")\
|
||||
.with_automatic_reconnect({
|
||||
"type": "interval",
|
||||
"intervals": [0, 2, 10, 30]
|
||||
})\
|
||||
.build()
|
||||
|
||||
# Register event handlers
|
||||
self.connection.on("PendingChangeCreated", self.on_pending_change_created)
|
||||
self.connection.on("PendingChangeApproved", self.on_pending_change_approved)
|
||||
self.connection.on("PendingChangeRejected", self.on_pending_change_rejected)
|
||||
self.connection.on("PendingChangeApplied", self.on_pending_change_applied)
|
||||
self.connection.on("PendingChangeExpired", self.on_pending_change_expired)
|
||||
|
||||
# Start connection
|
||||
self.connection.start()
|
||||
print("SignalR Connected")
|
||||
|
||||
async def subscribe_to_pending_change(self, pending_change_id: str):
|
||||
"""Subscribe to notifications for a specific pending change"""
|
||||
await self.connection.invoke("SubscribeToPendingChange", pending_change_id)
|
||||
print(f"Subscribed to PendingChange {pending_change_id}")
|
||||
|
||||
async def unsubscribe_from_pending_change(self, pending_change_id: str):
|
||||
"""Unsubscribe from notifications for a specific pending change"""
|
||||
await self.connection.invoke("UnsubscribeFromPendingChange", pending_change_id)
|
||||
print(f"Unsubscribed from PendingChange {pending_change_id}")
|
||||
|
||||
def stop(self):
|
||||
if self.connection:
|
||||
self.connection.stop()
|
||||
|
||||
# Usage
|
||||
async def main():
|
||||
client = McpNotificationClient(
|
||||
hub_url="https://your-colaflow-instance.com/hubs/mcp-notifications",
|
||||
jwt_token="YOUR_JWT_TOKEN"
|
||||
)
|
||||
|
||||
await client.start()
|
||||
|
||||
# Subscribe to a specific pending change
|
||||
await client.subscribe_to_pending_change("123e4567-e89b-12d3-a456-426614174000")
|
||||
|
||||
# Keep running
|
||||
await asyncio.sleep(3600) # Run for 1 hour
|
||||
|
||||
client.stop()
|
||||
|
||||
if __name__ == "__main__":
|
||||
asyncio.run(main())
|
||||
```
|
||||
|
||||
## Hub Methods
|
||||
|
||||
### SubscribeToPendingChange
|
||||
|
||||
Subscribe to receive notifications for a specific pending change.
|
||||
|
||||
```typescript
|
||||
await connection.invoke("SubscribeToPendingChange", pendingChangeId);
|
||||
```
|
||||
|
||||
**Parameters:**
|
||||
- `pendingChangeId` (Guid/string): The ID of the pending change to subscribe to
|
||||
|
||||
### UnsubscribeFromPendingChange
|
||||
|
||||
Unsubscribe from receiving notifications for a specific pending change.
|
||||
|
||||
```typescript
|
||||
await connection.invoke("UnsubscribeFromPendingChange", pendingChangeId);
|
||||
```
|
||||
|
||||
**Parameters:**
|
||||
- `pendingChangeId` (Guid/string): The ID of the pending change to unsubscribe from
|
||||
|
||||
## Notification Payloads
|
||||
|
||||
### PendingChangeCreatedNotification
|
||||
|
||||
```json
|
||||
{
|
||||
"notificationType": "PendingChangeCreated",
|
||||
"pendingChangeId": "123e4567-e89b-12d3-a456-426614174000",
|
||||
"toolName": "create_epic",
|
||||
"entityType": "Epic",
|
||||
"operation": "CREATE",
|
||||
"summary": "Create Epic: Implement User Authentication",
|
||||
"tenantId": "456e7890-e89b-12d3-a456-426614174000",
|
||||
"timestamp": "2025-01-15T10:30:00Z"
|
||||
}
|
||||
```
|
||||
|
||||
### PendingChangeApprovedNotification
|
||||
|
||||
```json
|
||||
{
|
||||
"notificationType": "PendingChangeApproved",
|
||||
"pendingChangeId": "123e4567-e89b-12d3-a456-426614174000",
|
||||
"toolName": "create_epic",
|
||||
"entityType": "Epic",
|
||||
"operation": "CREATE",
|
||||
"entityId": "789e0123-e89b-12d3-a456-426614174000",
|
||||
"approvedBy": "234e5678-e89b-12d3-a456-426614174000",
|
||||
"executionResult": "Epic created: 789e0123-e89b-12d3-a456-426614174000 - Implement User Authentication",
|
||||
"tenantId": "456e7890-e89b-12d3-a456-426614174000",
|
||||
"timestamp": "2025-01-15T10:31:00Z"
|
||||
}
|
||||
```
|
||||
|
||||
### PendingChangeRejectedNotification
|
||||
|
||||
```json
|
||||
{
|
||||
"notificationType": "PendingChangeRejected",
|
||||
"pendingChangeId": "123e4567-e89b-12d3-a456-426614174000",
|
||||
"toolName": "create_epic",
|
||||
"reason": "Epic name is too vague, please provide more details",
|
||||
"rejectedBy": "234e5678-e89b-12d3-a456-426614174000",
|
||||
"tenantId": "456e7890-e89b-12d3-a456-426614174000",
|
||||
"timestamp": "2025-01-15T10:31:00Z"
|
||||
}
|
||||
```
|
||||
|
||||
### PendingChangeAppliedNotification
|
||||
|
||||
```json
|
||||
{
|
||||
"notificationType": "PendingChangeApplied",
|
||||
"pendingChangeId": "123e4567-e89b-12d3-a456-426614174000",
|
||||
"toolName": "create_epic",
|
||||
"result": "Epic created: 789e0123-e89b-12d3-a456-426614174000 - Implement User Authentication",
|
||||
"appliedAt": "2025-01-15T10:31:05Z",
|
||||
"tenantId": "456e7890-e89b-12d3-a456-426614174000",
|
||||
"timestamp": "2025-01-15T10:31:05Z"
|
||||
}
|
||||
```
|
||||
|
||||
### PendingChangeExpiredNotification
|
||||
|
||||
```json
|
||||
{
|
||||
"notificationType": "PendingChangeExpired",
|
||||
"pendingChangeId": "123e4567-e89b-12d3-a456-426614174000",
|
||||
"toolName": "create_epic",
|
||||
"expiredAt": "2025-01-15T22:30:00Z",
|
||||
"tenantId": "456e7890-e89b-12d3-a456-426614174000",
|
||||
"timestamp": "2025-01-15T22:30:00Z"
|
||||
}
|
||||
```
|
||||
|
||||
## Tenant Isolation
|
||||
|
||||
All notifications are automatically isolated by tenant. When you connect, you are automatically added to your tenant's group, and you will only receive notifications for PendingChanges belonging to your tenant.
|
||||
|
||||
## Connection Lifecycle
|
||||
|
||||
1. **Connect**: Establish WebSocket connection with JWT token
|
||||
2. **Automatic Tenant Group Join**: Server automatically adds you to your tenant's group
|
||||
3. **Subscribe**: Optionally subscribe to specific pending changes
|
||||
4. **Receive Notifications**: Get real-time updates
|
||||
5. **Unsubscribe**: Optionally unsubscribe from specific pending changes
|
||||
6. **Disconnect**: Close connection when done
|
||||
|
||||
## Error Handling
|
||||
|
||||
```typescript
|
||||
connection.onreconnecting((error) => {
|
||||
console.warn("SignalR Reconnecting:", error);
|
||||
});
|
||||
|
||||
connection.onreconnected((connectionId) => {
|
||||
console.log("SignalR Reconnected:", connectionId);
|
||||
});
|
||||
|
||||
connection.onclose((error) => {
|
||||
console.error("SignalR Connection Closed:", error);
|
||||
// Implement custom reconnection logic if needed
|
||||
});
|
||||
```
|
||||
|
||||
## Best Practices
|
||||
|
||||
1. **Use Automatic Reconnect**: Always enable `.withAutomaticReconnect()` to handle temporary disconnections
|
||||
2. **Subscribe Selectively**: Only subscribe to specific pending changes you care about
|
||||
3. **Clean Up**: Always unsubscribe and close connections when done
|
||||
4. **Error Handling**: Implement proper error handling for network failures
|
||||
5. **Token Refresh**: Refresh JWT tokens before they expire to maintain connection
|
||||
6. **Logging**: Enable appropriate logging level for debugging
|
||||
|
||||
## Fallback Strategy
|
||||
|
||||
If SignalR/WebSocket is not available or fails, you can fall back to polling:
|
||||
|
||||
```typescript
|
||||
// Fallback to polling if SignalR fails
|
||||
async function pollPendingChange(pendingChangeId: string) {
|
||||
const interval = setInterval(async () => {
|
||||
try {
|
||||
const response = await fetch(
|
||||
`https://api.colaflow.com/api/mcp/pending-changes/${pendingChangeId}`,
|
||||
{
|
||||
headers: {
|
||||
Authorization: `Bearer ${jwtToken}`,
|
||||
},
|
||||
}
|
||||
);
|
||||
const pendingChange = await response.json();
|
||||
|
||||
if (pendingChange.status === "Approved" || pendingChange.status === "Rejected") {
|
||||
clearInterval(interval);
|
||||
console.log("PendingChange status updated:", pendingChange.status);
|
||||
}
|
||||
} catch (error) {
|
||||
console.error("Polling error:", error);
|
||||
}
|
||||
}, 2000); // Poll every 2 seconds
|
||||
}
|
||||
```
|
||||
|
||||
## Performance Considerations
|
||||
|
||||
- **Connection Reuse**: Reuse a single SignalR connection for multiple subscriptions
|
||||
- **Selective Subscriptions**: Only subscribe to pending changes you need to track
|
||||
- **Bandwidth**: SignalR uses WebSocket, which is much more efficient than polling
|
||||
- **Scalability**: The server uses SignalR Groups for efficient message routing
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Connection Fails
|
||||
|
||||
- Verify JWT token is valid and not expired
|
||||
- Check CORS settings if connecting from a browser
|
||||
- Ensure WebSocket is not blocked by firewall/proxy
|
||||
|
||||
### Not Receiving Notifications
|
||||
|
||||
- Verify you're connected (check `connection.state === HubConnectionState.Connected`)
|
||||
- Check tenant ID matches the PendingChange's tenant
|
||||
- Verify you've subscribed to the pending change (if using selective subscriptions)
|
||||
|
||||
### Notifications Delayed
|
||||
|
||||
- Check network latency
|
||||
- Verify server is not under heavy load
|
||||
- Check if automatic reconnect is triggering frequently (network instability)
|
||||
|
||||
## Support
|
||||
|
||||
For issues or questions, please contact the ColaFlow development team or open an issue in the repository.
|
||||
@@ -2,12 +2,13 @@
|
||||
story_id: story_5_12
|
||||
sprint_id: sprint_5
|
||||
phase: Phase 3 - Tools & Diff Preview
|
||||
status: not_started
|
||||
status: completed
|
||||
priority: P0
|
||||
story_points: 3
|
||||
assignee: backend
|
||||
estimated_days: 1
|
||||
created_date: 2025-11-06
|
||||
completion_date: 2025-11-09
|
||||
dependencies: [story_5_10]
|
||||
---
|
||||
|
||||
|
||||
Reference in New Issue
Block a user