<?php

namespace App\Domain\ContentManagement;

use App\Domain\AI\AIClient;
use App\Domain\Model\AI\Embedding;
use App\Domain\Model\Brand;
use App\Domain\Model\CarProperty;
use App\Domain\Model\CarRevision;
use App\Domain\Model\Persistence\PersistedEmbedding;
use App\Domain\Model\Value\EmbeddingId;
use App\Domain\Repository\EmbeddingRepository;
use Stringable;

class CarPropertyEmbedder
{
    public function __construct(
        private readonly AIClient $aiClient,
        private readonly EmbeddingRepository $embeddingRepository,
    ) {
    }

    public function createPersistedEmbedding(CarProperty $carProperty, ?CarRevision $carRevision, ?Brand $brand): ?Embedding
    {
        if (!($carProperty->value instanceof Stringable)) {
            return null;
        }

        $text = $carProperty->type->humanReadable() . ': ' . (string) $carProperty->value;
        if ($carRevision !== null) {
            $text .= ' - ' . $carRevision->name;
        }
        if ($brand !== null) {
            $text .= ', ' . $brand->name;
        }

        $persistedEmbedding = $this->embeddingRepository->findByPhrase($text);
        if ($persistedEmbedding) {
            return $persistedEmbedding;
        }

        $largeEmbedding = $this->aiClient->embedTextLarge($text);
        $smallEmbedding = $this->aiClient->embedTextSmall($text);

        $embedding = new Embedding(EmbeddingId::generate(), $text, $largeEmbedding, $smallEmbedding);
        $this->embeddingRepository->save($embedding);

        return $embedding;
    }
}