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GuikingoneGuikingone
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fix
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9 files changed

+176
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‎examples/misc/persistent-chat-double-agent.php‎

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@@ -0,0 +1,47 @@
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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use Symfony\AI\Agent\Agent;
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use Symfony\AI\Agent\Chat;
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use Symfony\AI\Agent\Chat\MessageStore\InMemoryStore;
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use Symfony\AI\Platform\Bridge\OpenAi\Gpt;
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use Symfony\AI\Platform\Bridge\OpenAi\PlatformFactory;
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use Symfony\AI\Platform\Message\Message;
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use Symfony\AI\Platform\Message\MessageBag;
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require_once dirname(__DIR__).'/bootstrap.php';
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$platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
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$llm = new Gpt(Gpt::GPT_4O_MINI);
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$firstAgent = new Agent($platform, $llm, logger: logger());
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$secondAgent = new Agent($platform, $llm, logger: logger());
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$store = new InMemoryStore();
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$firstChatStore = $store->withSession($firstAgent->getId());
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$secondChatStore = $store->withSession($secondAgent->getId());
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$firstChat = new Chat($firstAgent, $firstChatStore);
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$secondChat = new Chat($secondAgent, $secondChatStore);
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$messages = new MessageBag(
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Message::forSystem('You are a helpful assistant. You only answer with short sentences.'),
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);
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$firstChat->initiate($messages);
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$secondChat->initiate($messages);
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$firstChat->submit(Message::ofUser('My name is Christopher.'));
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$firstChatMessage = $firstChat->submit(Message::ofUser('What is my name?'));
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$secondChatMessage = $secondChat->submit(Message::ofUser('What is my name?'));
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echo $firstChatMessage->content.\PHP_EOL;
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echo $secondChatMessage->content.\PHP_EOL;

‎src/agent/src/Agent.php‎

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@@ -21,6 +21,9 @@
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use Symfony\AI\Platform\Model;
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use Symfony\AI\Platform\PlatformInterface;
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use Symfony\AI\Platform\Result\ResultInterface;
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use Symfony\Component\Uid\AbstractUid;
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use Symfony\Component\Uid\TimeBasedUidInterface;
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use Symfony\Component\Uid\Uuid;
2427
use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
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use Symfony\Contracts\HttpClient\Exception\HttpExceptionInterface;
2629

@@ -29,6 +32,8 @@
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*/
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final readonly class Agent implements AgentInterface
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{
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private AbstractUid&TimeBasedUidInterface $id;
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3237
/**
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* @var InputProcessorInterface[]
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*/
@@ -52,6 +57,8 @@ public function __construct(
5257
) {
5358
$this->inputProcessors = $this->initializeProcessors($inputProcessors, InputProcessorInterface::class);
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$this->outputProcessors = $this->initializeProcessors($outputProcessors, OutputProcessorInterface::class);
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$this->id = Uuid::v7();
5562
}
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5764
/**
@@ -97,6 +104,11 @@ public function call(MessageBagInterface $messages, array $options = []): Result
97104
return $output->result;
98105
}
99106

107+
public function getId(): AbstractUid&TimeBasedUidInterface
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{
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return $this->id;
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}
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100112
/**
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* @param InputProcessorInterface[]|OutputProcessorInterface[] $processors
102114
* @param class-string $interface

‎src/agent/src/AgentInterface.php‎

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@@ -14,6 +14,8 @@
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use Symfony\AI\Agent\Exception\ExceptionInterface;
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use Symfony\AI\Platform\Message\MessageBagInterface;
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use Symfony\AI\Platform\Result\ResultInterface;
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use Symfony\Component\Uid\AbstractUid;
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use Symfony\Component\Uid\TimeBasedUidInterface;
1719

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/**
1921
* @author Denis Zunke <[email protected]>
@@ -26,4 +28,6 @@ interface AgentInterface
2628
* @throws ExceptionInterface When the agent encounters an error (e.g., unsupported model capabilities, invalid arguments, network failures, or processor errors)
2729
*/
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public function call(MessageBagInterface $messages, array $options = []): ResultInterface;
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public function getId(): AbstractUid&TimeBasedUidInterface;
2933
}

‎src/agent/src/Chat/MessageStore/CacheStore.php‎

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@@ -13,11 +13,14 @@
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use Psr\Cache\CacheItemPoolInterface;
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use Symfony\AI\Agent\Chat\MessageStoreInterface;
16+
use Symfony\AI\Agent\Chat\SessionAwareMessageStoreInterface;
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use Symfony\AI\Agent\Exception\RuntimeException;
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use Symfony\AI\Platform\Message\MessageBag;
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use Symfony\AI\Platform\Message\MessageBagInterface;
20+
use Symfony\Component\Uid\AbstractUid;
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use Symfony\Component\Uid\TimeBasedUidInterface;
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20-
final readonly class CacheStore implements MessageStoreInterface
23+
final readonly class CacheStore implements MessageStoreInterface, SessionAwareMessageStoreInterface
2124
{
2225
public function __construct(
2326
private CacheItemPoolInterface $cache,
@@ -50,4 +53,9 @@ public function clear(): void
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{
5154
$this->cache->deleteItem($this->cacheKey);
5255
}
56+
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public function withSession(AbstractUid&TimeBasedUidInterface $session): MessageStoreInterface&SessionAwareMessageStoreInterface
58+
{
59+
return new $this($this->cache, $session->toRfc4122(), $this->ttl);
60+
}
5361
}

‎src/agent/src/Chat/MessageStore/InMemoryStore.php‎

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@@ -12,25 +12,56 @@
1212
namespace Symfony\AI\Agent\Chat\MessageStore;
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1414
use Symfony\AI\Agent\Chat\MessageStoreInterface;
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use Symfony\AI\Agent\Chat\SessionAwareMessageStoreInterface;
1516
use Symfony\AI\Platform\Message\MessageBag;
1617
use Symfony\AI\Platform\Message\MessageBagInterface;
18+
use Symfony\Component\Uid\AbstractUid;
19+
use Symfony\Component\Uid\TimeBasedUidInterface;
1720

18-
final class InMemoryStore implements MessageStoreInterface
21+
final class InMemoryStore implements MessageStoreInterface, SessionAwareMessageStoreInterface
1922
{
20-
private MessageBagInterface $messages;
23+
/**
24+
* @var MessageBagInterface[]
25+
*/
26+
private array $messages;
27+
private (AbstractUid&TimeBasedUidInterface)|null $session = null;
2128

2229
public function save(MessageBagInterface $messages): void
2330
{
24-
$this->messages = $messages;
31+
if (null === $this->session) {
32+
$this->messages = $messages->getMessages();
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return;
35+
}
36+
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$this->messages[$this->session->toRfc4122()] = $messages;
2538
}
2639

2740
public function load(): MessageBagInterface
2841
{
29-
return $this->messages ?? new MessageBag();
42+
if (null === $this->session) {
43+
return new MessageBag(...$this->messages);
44+
}
45+
46+
return $this->messages[$this->session->toRfc4122()] ?? new MessageBag();
3047
}
3148

3249
public function clear(): void
3350
{
34-
$this->messages = new MessageBag();
51+
if (null === $this->session) {
52+
$this->messages = [];
53+
54+
return;
55+
}
56+
57+
$this->messages[$this->session->toRfc4122()] = new MessageBag();
58+
}
59+
60+
public function withSession(AbstractUid&TimeBasedUidInterface $session): MessageStoreInterface&SessionAwareMessageStoreInterface
61+
{
62+
$store = clone $this;
63+
$store->session = $session;
64+
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return $store;
3566
}
3667
}

‎src/agent/src/Chat/MessageStore/SessionStore.php‎

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@@ -12,13 +12,16 @@
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namespace Symfony\AI\Agent\Chat\MessageStore;
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1414
use Symfony\AI\Agent\Chat\MessageStoreInterface;
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use Symfony\AI\Agent\Chat\SessionAwareMessageStoreInterface;
1516
use Symfony\AI\Agent\Exception\RuntimeException;
1617
use Symfony\AI\Platform\Message\MessageBag;
1718
use Symfony\AI\Platform\Message\MessageBagInterface;
1819
use Symfony\Component\HttpFoundation\RequestStack;
1920
use Symfony\Component\HttpFoundation\Session\SessionInterface;
21+
use Symfony\Component\Uid\AbstractUid;
22+
use Symfony\Component\Uid\TimeBasedUidInterface;
2023

21-
final readonly class SessionStore implements MessageStoreInterface
24+
final readonly class SessionStore implements MessageStoreInterface, SessionAwareMessageStoreInterface
2225
{
2326
private SessionInterface $session;
2427

@@ -46,4 +49,12 @@ public function clear(): void
4649
{
4750
$this->session->remove($this->sessionKey);
4851
}
52+
53+
public function withSession(AbstractUid&TimeBasedUidInterface $session): MessageStoreInterface&SessionAwareMessageStoreInterface
54+
{
55+
$store = clone $this;
56+
$store->session->setId($session->toRfc4122());
57+
58+
return $store;
59+
}
4960
}

‎src/agent/src/Chat/MessageStoreInterface.php‎

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1212
namespace Symfony\AI\Agent\Chat;
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1414
use Symfony\AI\Platform\Message\MessageBagInterface;
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use Symfony\Component\Uid\AbstractUid;
16+
use Symfony\Component\Uid\TimeBasedUidInterface;
1517

1618
interface MessageStoreInterface
1719
{
1820
public function save(MessageBagInterface $messages): void;
1921

20-
public function load(): MessageBagInterface;
22+
public function load((AbstractUid&TimeBasedUidInterface)|null $session = null): MessageBagInterface;
2123

2224
public function clear(): void;
2325
}

‎src/agent/src/Chat/SessionAwareMessageStoreInterface.php‎

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<?php
2+
3+
/*
4+
* This file is part of the Symfony package.
5+
*
6+
* (c) Fabien Potencier <[email protected]>
7+
*
8+
* For the full copyright and license information, please view the LICENSE
9+
* file that was distributed with this source code.
10+
*/
11+
12+
namespace Symfony\AI\Agent\Chat;
13+
14+
use Symfony\Component\Uid\AbstractUid;
15+
use Symfony\Component\Uid\TimeBasedUidInterface;
16+
17+
interface SessionAwareMessageStoreInterface
18+
{
19+
public function withSession(AbstractUid&TimeBasedUidInterface $session): MessageStoreInterface&SessionAwareMessageStoreInterface;
20+
}

‎src/agent/tests/AgentTest.php‎

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1919
use Symfony\AI\Agent\Agent;
2020
use Symfony\AI\Agent\AgentAwareInterface;
2121
use Symfony\AI\Agent\AgentInterface;
22+
use Symfony\AI\Agent\Chat;
23+
use Symfony\AI\Agent\Chat\MessageStore\InMemoryStore;
2224
use Symfony\AI\Agent\Exception\InvalidArgumentException;
2325
use Symfony\AI\Agent\Exception\MissingModelSupportException;
2426
use Symfony\AI\Agent\Exception\RuntimeException;
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3032
use Symfony\AI\Platform\Message\Content\Audio;
3133
use Symfony\AI\Platform\Message\Content\Image;
3234
use Symfony\AI\Platform\Message\Content\Text;
35+
use Symfony\AI\Platform\Message\Message;
3336
use Symfony\AI\Platform\Message\MessageBag;
3437
use Symfony\AI\Platform\Message\UserMessage;
3538
use Symfony\AI\Platform\Model;
@@ -49,6 +52,8 @@
4952
#[UsesClass(Text::class)]
5053
#[UsesClass(Audio::class)]
5154
#[UsesClass(Image::class)]
55+
#[UsesClass(InMemoryStore::class)]
56+
#[UsesClass(Chat::class)]
5257
#[Small]
5358
final class AgentTest extends TestCase
5459
{
@@ -395,4 +400,32 @@ public function testConstructorAcceptsTraversableProcessors()
395400

396401
$this->assertInstanceOf(AgentInterface::class, $agent);
397402
}
403+
404+
public function testDoubleAgentCanUseSameMessageStore()
405+
{
406+
$platform = $this->createMock(PlatformInterface::class);
407+
$model = $this->createMock(Model::class);
408+
409+
$firstAgent = new Agent($platform, $model);
410+
$secondAgent = new Agent($platform, $model);
411+
412+
$store = new InMemoryStore();
413+
$firstStore = $store->withSession($firstAgent->getId());
414+
$secondStore = $store->withSession($secondAgent->getId());
415+
416+
$firstChat = new Chat($firstAgent, $firstStore);
417+
$secondChat = new Chat($secondAgent, $secondStore);
418+
419+
$messages = new MessageBag(
420+
Message::forSystem('You are a helpful assistant. You only answer with short sentences.'),
421+
);
422+
423+
$firstChat->initiate($messages);
424+
$firstChat->submit(new UserMessage(new Text('Hello')));
425+
$secondChat->submit(new UserMessage(new Text('Hello')));
426+
$secondChat->submit(new UserMessage(new Text('Hello there')));
427+
428+
$this->assertCount(1, $firstStore->load());
429+
$this->assertCount(2, $secondStore->load());
430+
}
398431
}

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