137 lines
4.6 KiB
PHP
137 lines
4.6 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Agent;
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use App\Context\ContextService;
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use App\Context\UrlAnalyzer;
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use App\Infrastructure\OllamaClient;
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use App\Knowledge\Retrieval\RetrieverInterface;
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use Generator;
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use Psr\Log\LoggerInterface;
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use Throwable;
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use App\Agent\StreamChunker;
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final readonly class AgentRunner
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{
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public function __construct(
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private PromptBuilder $promptBuilder,
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private ThinkSuppressor $thinkSuppressor,
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private ContextService $contextService,
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private UrlAnalyzer $urlAnalyzer,
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private RetrieverInterface $retriever,
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private OllamaClient $ollamaClient,
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private LoggerInterface $agentLogger,
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private bool $debug,
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private bool $logPrompt,
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private bool $logContext,
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) {}
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public function run(string $prompt, string $userId): Generator
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{
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$prompt = trim($prompt);
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if ($prompt === '') {
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yield '❌ Empty prompt.';
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return;
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}
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$this->agentLogger->info('Agent run started', [
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'userId' => $userId,
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]);
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try {
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// ---------------------------------------------------------
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// 1) Context strategy
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// ---------------------------------------------------------
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$includeFullContext = false;
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// ---------------------------------------------------------
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// 2) Extract URL content (if present)
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// ---------------------------------------------------------
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$urlContent = $this->urlAnalyzer->extractContentFromPrompt($prompt);
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// ---------------------------------------------------------
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// 3) Retrieve RAG knowledge
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// ---------------------------------------------------------
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$knowledgeChunks = $this->retriever->retrieve($prompt);
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// ---------------------------------------------------------
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// 4) Build final prompt
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// ---------------------------------------------------------
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$finalPrompt = $this->promptBuilder->build(
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prompt: $prompt,
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userId: $userId,
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urlContent: $urlContent,
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knowledgeChunks: $knowledgeChunks,
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fullContext: $includeFullContext
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);
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if ($this->debug && $this->logPrompt) {
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$this->agentLogger->debug($finalPrompt);
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}
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if ($this->debug && $this->logContext) {
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$this->agentLogger->debug('Conversation context snapshot', [
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'context' => $this->contextService->buildUserContext(
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$userId,
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$includeFullContext
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),
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]);
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}
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// ---------------------------------------------------------
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// 5) Stream tokens from the LLM backend (chunked streaming)
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// ---------------------------------------------------------
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$fullOutput = '';
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$chunker = new StreamChunker();
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foreach ($this->ollamaClient->stream($finalPrompt) as $token) {
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$cleanToken = $this->thinkSuppressor->filter($token);
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if ($cleanToken === '') {
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continue;
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}
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// Vollständige Antwort weiter sammeln (für History)
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$fullOutput .= $cleanToken;
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// ⬇️ Token in Chunker geben
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$chunk = $chunker->push($cleanToken);
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if ($chunk !== null) {
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yield $chunk;
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}
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}
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// ⬇️ Rest flushen
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$finalChunk = $chunker->flush();
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if ($finalChunk !== null) {
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yield $finalChunk;
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}
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// ---------------------------------------------------------
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// 6) Persist conversation history
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// ---------------------------------------------------------
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$this->contextService->appendHistory(
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$userId,
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$prompt,
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$fullOutput
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);
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$this->agentLogger->info('Agent run finished', [
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'userId' => $userId,
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'outputLength' => mb_strlen($fullOutput),
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'contextMode' => 'recent',
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]);
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} catch (Throwable $e) {
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$this->agentLogger->error('Agent run failed', [
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'userId' => $userId,
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'exception' => $e,
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]);
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yield "\n❌ An internal error occurred while processing the request.";
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}
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}
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}
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