Ai Pogocache Message Store Laravel Package

Getting Started

Minimal Setup

1. Install the Package:

   composer require symfony/ai-pogocache-message-store
   

   Ensure symfony/ai-chat (≥0.9) and symfony/http-client (≥7.3) are installed.

2. Configure Pogocache: Add credentials to .env:

   POGOCACHE_URL=https://your-pogocache-instance.com/api
   POGOCACHE_TOKEN=your_api_token_here
   

3. Bind the Message Store: Register the store in config/app.php or a service provider:

   $app->bind(
       \Symfony\Component\Ai\Chat\MessageStoreInterface::class,
       function ($app) {
           return new \Symfony\Ai\PogocacheMessageStore(
               $app->make(\Symfony\Contracts\HttpClient\HttpClientInterface::class),
               $app->make(\Symfony\Component\Serializer\SerializerInterface::class),
               $app['config']['services.pogocache.token']
           );
       }
   );
   

4. First Use Case: Use Symfony AI Chat’s Chat class to send/retrieve messages:

   use Symfony\Component\Ai\Chat\Chat;
   use Symfony\Component\Ai\Chat\Message;
   
   $chat = new Chat($messageStore);
   $chat->addMessage(new Message('user', 'Hello!'));
   $response = $chat->ask('ai', 'How are you?');
   

Implementation Patterns

Core Workflows

1. Message Persistence:

   • Save: Automatically triggered via Symfony AI Chat’s Chat class.
   • Retrieve: Fetch messages by ID for conversation history:

     $message = $messageStore->getMessage('chat_id:123');
     

2. Laravel Integration:

   • Service Provider: Centralize Pogocache configuration:

     public function register(): void {
         $this->app->singleton(\Symfony\Component\Ai\Chat\MessageStoreInterface::class, function ($app) {
             return new \Symfony\Ai\PogocacheMessageStore(
                 $app->make(\Symfony\Contracts\HttpClient\HttpClientInterface::class),
                 new \Symfony\Component\Serializer\Serializer(),
                 config('services.pogocache.token')
             );
         });
     }
     

3. Event-Driven Patterns:

   • Listen to Symfony AI events and dispatch Laravel events:

     $messageStore->addListener(
         \Symfony\Component\Ai\Chat\Events\MessageStored::class,
         function ($event) {
             event(new \App\Events\ChatMessageStored($event->getMessage()));
         }
     );
     

4. Queue Integration:

   • Offload message storage to queues for async processing:

     ChatMessage::created(function ($message) {
         StorePogocacheMessage::dispatch($message);
     });
     

Laravel-Specific Patterns

1. HTTP Client Abstraction:

   • Replace Symfony’s HttpClient with Laravel’s HttpClient:

     use Illuminate\Support\Facades\Http;
     
     class LaravelPogocacheStore {
         public function save(Message $message): void {
             Http::withHeaders([
                 'Authorization' => 'Bearer '.config('services.pogocache.token'),
                 'Content-Type' => 'application/json',
             ])->post(config('services.pogocache.url'), [
                 'json' => $message->toArray(),
             ]);
         }
     }
     

2. Fallback Mechanism:

   • Cache messages locally during Pogocache outages:

     public function getMessage(string $id): ?Message {
         return cache()->remember("pogocache:fallback:{$id}", now()->addMinutes(10), function () use ($id) {
             return $this->pogocache->fetch($id);
         });
     }
     

3. Model Binding:

   • Bind Pogocache messages to Laravel Eloquent models:

     class ChatMessage extends Model {
         protected $casts = ['content' => 'array'];
     
         public static function boot(): void {
             static::saved(function ($model) {
                 app(\Symfony\Component\Ai\Chat\MessageStoreInterface::class)->save($model);
             });
         }
     }
     

4. Testing:

   • Mock Pogocache responses in Laravel tests:

     Http::fake([
         config('services.pogocache.url') => Http::response(['content' => 'test'], 200),
     ]);
     

Gotchas and Tips

Pitfalls

1. Serialization Mismatches:

   • Issue: Symfony’s Serializer may not handle Laravel’s Carbon instances or custom objects.
   • Fix: Normalize data before serialization:

     $data = [
         'content' => $message->content,
         'created_at' => $message->created_at->toIso8601String(),
     ];
     

2. HTTP Client Timeouts:

   • Issue: Pogocache requests may hang if not configured with retries.
   • Fix: Use Laravel’s HttpClient with middleware:

     Http::withOptions([
         'timeout' => 5.0,
         'connect_timeout' => 2.0,
     ])->retry(3, 100);
     

3. Idempotency:

   • Issue: Duplicate messages if Laravel retries jobs or Symfony AI Chat reprocesses events.
   • Fix: Use Pogocache’s HTTP PUT for updates and check for existence:

     if (!$this->exists($message->id)) {
         $this->save($message);
     }
     

4. Token Management:

   • Issue: Hardcoded tokens in config files.
   • Fix: Use Laravel Vault or environment variables:

     POGOCACHE_TOKEN=${VAULT_SECURE_POGOCACHE_TOKEN}
     

5. Rate Limiting:

   • Issue: Pogocache may throttle requests during high traffic.
   • Fix: Implement exponential backoff in Laravel:

     use Symfony\Component\HttpClient\Retry\RetryStrategy;
     
     $client = Http::withOptions([
         'retry_strategy' => new RetryStrategy(3, 100, true),
     ]);
     

Debugging Tips

1. Log HTTP Traffic:

   • Intercept Pogocache requests with Laravel middleware:

     Http::macro('pogocache', function ($callback) {
         $response = Http::withHeaders([
             'Authorization' => 'Bearer '.config('services.pogocache.token'),
         ])->toPogocache($callback);
     
         \Log::debug('Pogocache Request', [
             'url' => $response->originalRequest()->url(),
             'method' => $response->originalRequest()->method(),
             'response' => $response->body(),
         ]);
     
         return $response;
     });
     

2. Validate Payloads:

   • Use Laravel’s Validator to ensure messages conform to Pogocache’s schema:

     use Illuminate\Support\Facades\Validator;
     
     $validator = Validator::make($message->toArray(), [
         'content' => 'required|string|max:10000',
         'created_at' => 'required|date',
     ]);
     

3. Monitor Performance:

   • Track cache hit/miss ratios with Laravel Telescope:

     \Log::channel('telescope')->info('Pogocache Miss', [
         'message_id' => $message->id,
         'fallback_used' => true,
     ]);
     

Extension Points

1. Custom Serialization:

   • Override Symfony’s serializer for Laravel-specific types:

     $serializer = new \Symfony\Component\Serializer\Serializer([
         new \Symfony\Component\Serializer\Normalizer\ObjectNormalizer(),
         new \App\Serializer\CarbonNormalizer(), // Custom normalizer
     ]);
     

2. Message Deduplication:

   • Add a Laravel job to deduplicate messages:

     class DeduplicatePogocacheMessages implements ShouldQueue {
         public function handle(): void {
             $messages = Message::whereNull('pogocache_id')->get();
             foreach ($messages as $message) {
                 $pogocacheId = $this->store->save($message);
                 $message->update(['pogocache_id' => $pogocacheId]);
             }
         }
     }
     

3. Multi-Region Support:

   • Route messages to regional Pogocache instances based on user location:

     public function getPogocacheUrl(): string {
         $region = request()->ip() === 'eu' ? 'eu' : 'us';
         return "https://pogocache-{$region}.com/api";
     }
     

4. Analytics Integration:

   • Track message interactions with Laravel Scout or a custom analytics service:

     $messageStore->addListener(
         \Symfony\Component\Ai\Chat\Events\MessageRead::class,
         function ($event) {
             \App\Models\Analytics