<?php

declare(strict_types=1);

namespace App\Infrastructure\AI\Agent;

use App\Infrastructure\AI\OllamaClientInterface;
use App\Infrastructure\AI\PromptTemplateService;
use App\Infrastructure\Search\WebSearchInterface;

final class SpecsResearchAgent
{
    public function __construct(
        private readonly OllamaClientInterface $client,
        private readonly PromptTemplateService $prompts,
        private readonly WebSearchInterface $search,
        private readonly string $model,
    ) {
    }

    public function research(string $modelName, string $articleTypeName, string $manufacturer = ''): string
    {
        $subject = trim(($manufacturer !== '' ? $manufacturer.' ' : '').$modelName);

        $searchResults = $this->search->search("{$subject} {$articleTypeName} specifications");

        $prompt = $this->prompts->render('specs_research', [
            'articleType' => $articleTypeName,
            'subject' => $subject,
            'searchResults' => $searchResults !== '' ? $searchResults : 'No web results available.',
        ]);

        $result = $this->client->generate($this->model, $prompt);

        if ('' === trim($result)) {
            throw new \RuntimeException("No specifications found for model: {$modelName}");
        }

        return $result;
    }
}