<?php

namespace Modules\Core\Catalog\Recommendations;

use Illuminate\Support\Collection;
use Lunar\Models\Product;
use Modules\Core\Catalog\Contracts\RecommendationRule;

/**
 * The universal fallback — always returns something as long as the store
 * has more than one product, since it has no eligibility condition of its
 * own to come up empty on. Meant to be placed last in
 * config('catalog.recommendation_rules'), not first: every store using
 * the default chain gets a real fallback, but one that only kicks in once
 * more specific rules (same category, same tag, ...) have had a chance.
 */
class RandomRule implements RecommendationRule
{
    public function recommend(Product $product, int $limit, array $exclude): Collection
    {
        return Product::query()
            ->whereKeyNot($exclude)
            ->inRandomOrder()
            ->limit($limit)
            ->get();
    }
}