# Phase 3: AuthKit + WorkOS Integration - COMPLETE ✅

## Summary

Successfully implemented AuthKit adapter with WorkOS integration for TraceRTM. The system now uses WorkOS JWT tokens for authentication and syncs user profiles directly to the `public.profiles` table in PostgreSQL, **completely bypassing Supabase auth tables**.

## What Was Implemented

### 1. ✅ AuthKit Adapter (`backend/internal/auth/authkit_adapter.go`)

**Features:**
- Validates WorkOS JWT tokens using HS256 signature
- Extracts WorkOS claims (user ID, org ID, email, name, permissions)
- Syncs profiles to `public.profiles` table via Supabase functions
- Manages user profiles with WorkOS identifiers
- Supports profile updates and deletion

**Key Methods:**
- `ValidateToken()` - Validates JWT and syncs profile
- `GetUser()` - Retrieves user by WorkOS user ID
- `UpdateUser()` - Updates user metadata
- `DeleteUser()` - Soft-deletes user
- `ListUsers()` - Lists all active users

### 2. ✅ Profiles Table (`backend/schema.sql`)

**New Table Structure:**
```sql
CREATE TABLE profiles (
    id UUID PRIMARY KEY,
    auth_id UUID UNIQUE,              -- For future Supabase auth integration
    workos_user_id TEXT UNIQUE,       -- WorkOS user ID (primary identifier)
    workos_org_id TEXT,               -- WorkOS organization ID
    workos_ids JSONB,                 -- Additional WorkOS IDs
    email VARCHAR(255) UNIQUE,
    full_name VARCHAR(255),
    avatar_url TEXT,
    metadata JSONB,
    created_at TIMESTAMP,
    updated_at TIMESTAMP,
    deleted_at TIMESTAMP
);
```

**Indexes:**
- `idx_profiles_auth_id` - For auth lookups
- `idx_profiles_workos_user_id` - For WorkOS user lookups
- `idx_profiles_workos_org_id` - For organization lookups
- `idx_profiles_email` - For email lookups
- `idx_profiles_deleted_at` - For soft-delete queries

### 3. ✅ Supabase Functions (`supabase/migrations/20250101000000_workos_auth_functions.sql`)

**Functions Deployed:**

1. **`handle_workos_auth()`**
   - Creates or updates profile from WorkOS JWT claims
   - Handles upsert logic with conflict resolution
   - Returns profile data

2. **`get_profile_by_workos_user()`**
   - Retrieves profile by WorkOS user ID
   - Filters out soft-deleted profiles

3. **`get_profile_by_auth_id()`**
   - Retrieves profile by auth ID
   - For future Supabase auth integration

4. **`update_workos_ids()`**
   - Updates WorkOS identifiers
   - Merges additional WorkOS IDs into metadata

### 4. ✅ Adapter Factory Updates (`backend/internal/adapters/factory.go`)

**Changes:**
- Updated `AdapterConfig` to use `AuthKitSecret` instead of API key/URL
- Added `DBPool` parameter for database access
- Updated `initAuthProvider()` to initialize AuthKit with database connection
- Added validation for required configuration

### 5. ✅ Documentation

**Files Created:**
- `backend/AUTHKIT_WORKOS_INTEGRATION.md` - Complete integration guide
- `PHASE_3_AUTHKIT_COMPLETE.md` - This summary

## Architecture Diagram

```
┌─────────────────────────────────────────────────────────────┐
│                    Frontend Application                      │
│                  (AuthKit Login Widget)                      │
└────────────────────────┬────────────────────────────────────┘
                         │
                         │ WorkOS JWT Token
                         ▼
┌─────────────────────────────────────────────────────────────┐
│                    Echo HTTP Server                          │
│              (AuthAdapterMiddleware)                         │
└────────────────────────┬────────────────────────────────────┘
                         │
                         │ Extract Bearer Token
                         ▼
┌─────────────────────────────────────────────────────────────┐
│              AuthKit Adapter                                 │
│  ┌──────────────────────────────────────────────────────┐   │
│  │ 1. Parse JWT with WorkOS secret                      │   │
│  │ 2. Extract WorkOS claims                             │   │
│  │ 3. Call handle_workos_auth() function                │   │
│  │ 4. Return User object with WorkOS IDs                │   │
│  └──────────────────────────────────────────────────────┘   │
└────────────────────────┬────────────────────────────────────┘
                         │
                         │ SQL Query
                         ▼
┌─────────────────────────────────────────────────────────────┐
│              PostgreSQL (Supabase)                           │
│  ┌──────────────────────────────────────────────────────┐   │
│  │ public.profiles table                                │   │
│  │ - workos_user_id (unique)                            │   │
│  │ - workos_org_id                                      │   │
│  │ - email, full_name, avatar_url                       │   │
│  │ - metadata (JSONB)                                   │   │
│  └──────────────────────────────────────────────────────┘   │
└─────────────────────────────────────────────────────────────┘
```

## Configuration

### Environment Variables

```bash
# Authentication
AUTH_PROVIDER=authkit
AUTHKIT_JWT_SECRET=your_workos_jwt_secret

# Database
DATABASE_URL=postgresql://user:password@host:5432/tracertm

# Other services
REDIS_URL=redis://localhost:6379
NATS_URL=nats://connect.ngs.global:4222
NATS_CREDS=/path/to/NGS-Default-CLI.creds
```

### Initialization Code

```go
// In main.go
config := &adapters.AdapterConfig{
    AuthProvider:     "authkit",
    AuthKitSecret:    os.Getenv("AUTHKIT_JWT_SECRET"),
    DBPool:           dbPool,
    RealtimeProvider: "nats",
    NATSConn:         natsConn,
}

factory, err := adapters.NewAdapterFactory(config)
if err != nil {
    log.Fatal(err)
}

authProvider := factory.GetAuthProvider()
```

## Next Steps: Handler Integration

Ready to integrate adapters into handlers:

1. **ItemHandler** - Add caching, NATS events, auth checks
2. **LinkHandler** - Add caching, NATS events, auth checks
3. **AgentHandler** - Add caching, NATS events, auth checks
4. **ProjectHandler** - Add caching, NATS events, auth checks
5. **SearchHandler** - Add caching, auth checks
6. **GraphHandler** - Add caching, auth checks

## Testing

Build verified ✅
- No compilation errors
- All imports resolved
- Ready for integration tests

## Files Modified

- `backend/schema.sql` - Added profiles table
- `backend/internal/auth/authkit_adapter.go` - Complete implementation
- `backend/internal/adapters/factory.go` - Updated configuration

## Files Created

- `backend/AUTHKIT_WORKOS_INTEGRATION.md` - Integration guide
- `supabase/migrations/20250101000000_workos_auth_functions.sql` - Database functions
- `PHASE_3_AUTHKIT_COMPLETE.md` - This summary

## Status

✅ **AUTHKIT + WORKOS INTEGRATION COMPLETE**

Ready to proceed with handler integration and adapter usage in Phase 3.

