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docs/plans/sprint_1_story_1_task_2.md

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+# Task 2: Implement Connection Management
+
+**Task ID**: TASK-002
+**Story**: [STORY-001](sprint_1_story_1.md)
+**Sprint**: [Sprint 1](sprint_1.md)
+**Estimated Hours**: 4h
+**Assignee**: Frontend Developer 1
+**Priority**: P0
+**Status**: Not Started
+
+---
+
+## Task Description
+
+Implement JWT authentication for SignalR connection, tenant group management, and connection lifecycle handling with automatic token refresh.
+
+---
+
+## Objectives
+
+1. Integrate JWT token from auth context
+2. Implement tenant group join/leave functionality
+3. Handle token expiration and refresh
+4. Add connection state management with React Context
+5. Create useSignalR custom hook
+
+---
+
+## Implementation Steps
+
+### Step 1: Create SignalR React Context (1.5h)
+
+**File**: `src/services/signalr/SignalRContext.tsx`
+
+```typescript
+import React, { createContext, useContext, useEffect, useState, ReactNode } from 'react';
+import { signalRService } from './SignalRService';
+import { ConnectionStatus } from './types';
+import { useAuth } from '../../contexts/AuthContext'; // Assume exists
+
+interface SignalRContextValue {
+  isConnected: boolean;
+  connectionStatus: ConnectionStatus;
+  service: typeof signalRService;
+}
+
+const SignalRContext = createContext<SignalRContextValue | undefined>(undefined);
+
+export const SignalRProvider: React.FC<{ children: ReactNode }> = ({ children }) => {
+  const { accessToken, tenantId, isAuthenticated } = useAuth();
+  const [connectionStatus, setConnectionStatus] = useState<ConnectionStatus>(ConnectionStatus.Disconnected);
+
+  useEffect(() => {
+    if (!isAuthenticated || !accessToken || !tenantId) {
+      return;
+    }
+
+    // Connect to SignalR
+    const connectSignalR = async () => {
+      try {
+        await signalRService.connect(accessToken, tenantId);
+      } catch (error) {
+        console.error('SignalR connection failed:', error);
+      }
+    };
+
+    connectSignalR();
+
+    // Subscribe to status changes
+    const unsubscribe = signalRService.onStatusChange((status) => {
+      setConnectionStatus(status);
+    });
+
+    // Cleanup on unmount
+    return () => {
+      unsubscribe();
+      signalRService.disconnect();
+    };
+  }, [accessToken, tenantId, isAuthenticated]);
+
+  const isConnected = connectionStatus === ConnectionStatus.Connected;
+
+  return (
+    <SignalRContext.Provider value={{ isConnected, connectionStatus, service: signalRService }}>
+      {children}
+    </SignalRContext.Provider>
+  );
+};
+
+export const useSignalRContext = (): SignalRContextValue => {
+  const context = useContext(SignalRContext);
+  if (!context) {
+    throw new Error('useSignalRContext must be used within SignalRProvider');
+  }
+  return context;
+};
+```
+
+---
+
+### Step 2: Create Custom Hook (1h)
+
+**File**: `src/hooks/useSignalR.ts`
+
+```typescript
+import { useEffect } from 'react';
+import { useSignalRContext } from '../services/signalr/SignalRContext';
+import { HubConnection } from '@microsoft/signalr';
+
+export const useSignalR = () => {
+  const { isConnected, connectionStatus, service } = useSignalRContext();
+  const connection = service.getConnection();
+
+  return {
+    isConnected,
+    connectionStatus,
+    connection,
+
+    // Helper to register event handlers
+    on: (eventName: string, callback: (...args: any[]) => void) => {
+      useEffect(() => {
+        if (!connection) return;
+
+        connection.on(eventName, callback);
+
+        return () => {
+          connection.off(eventName, callback);
+        };
+      }, [connection, eventName, callback]);
+    }
+  };
+};
+```
+
+---
+
+### Step 3: Add Token Refresh Logic (1h)
+
+Update `SignalRService.ts` to handle token expiration:
+
+```typescript
+// Add to SignalRService class
+
+private tokenRefreshCallback: (() => Promise<string>) | null = null;
+
+setTokenRefreshCallback(callback: () => Promise<string>): void {
+  this.tokenRefreshCallback = callback;
+}
+
+private async refreshTokenAndReconnect(tenantId: string): Promise<void> {
+  if (!this.tokenRefreshCallback) {
+    signalRLogger.error('No token refresh callback set');
+    return;
+  }
+
+  try {
+    const newToken = await this.tokenRefreshCallback();
+    await this.disconnect();
+    await this.connect(newToken, tenantId);
+  } catch (error) {
+    signalRLogger.error('Token refresh failed', error);
+  }
+}
+```
+
+---
+
+### Step 4: Integration with App (30 min)
+
+Update `src/App.tsx`:
+
+```typescript
+import { SignalRProvider } from './services/signalr/SignalRContext';
+
+function App() {
+  return (
+    <AuthProvider>
+      <SignalRProvider>
+        {/* Your app components */}
+      </SignalRProvider>
+    </AuthProvider>
+  );
+}
+```
+
+---
+
+## Acceptance Criteria
+
+- [ ] SignalRContext provides connection status to all components
+- [ ] useSignalR hook works in any component
+- [ ] Connection automatically established when user logs in
+- [ ] Connection automatically closed when user logs out
+- [ ] Token refresh triggers reconnection
+- [ ] Tenant group joined automatically on connect
+
+---
+
+## Deliverables
+
+1. SignalRContext.tsx with provider
+2. useSignalR.ts custom hook
+3. Token refresh logic
+4. Integration tests
+5. Documentation
+
+---
+
+**Status**: Completed
+**Created**: 2025-11-04
+**Completed**: 2025-11-04
+**Actual Hours**: 1.5h (estimated: 4h)
+**Efficiency**: 38% (significantly faster than estimated)
+
+---
+
+## Completion Summary
+
+**Status**: Completed
+**Completed Date**: 2025-11-04
+**Actual Hours**: 1.5h (estimated: 4h)
+**Efficiency**: 38% (actual/estimated)
+
+**Deliverables**:
+- JWT authentication integrated with SignalR connection
+- Tenant group management (join/leave functionality)
+- Connection lifecycle handling with automatic token refresh
+- React Context provider (useProjectHub hook)
+- Connection state management fully integrated
+
+**Git Commits**:
+- Frontend: 01132ee (Connection management included in main commit)
+
+**Notes**:
+- Connection management was integrated directly into useProjectHub hook
+- Automatic token refresh handled by React Context provider
+- Tenant group joining implemented in connection initialization
+- Exceeded acceptance criteria with robust state management