<?php

namespace App\Services\Article;

use App\Models\Article;

class ValidationService
{
    public static function validate(Article $article): Article
    {
        logger('Checking keywords for article: ' . $article->id);

        $articleData = ArticleFetcher::fetchArticleData($article);
        
        // Update article with fetched data (title, description, etc.)
        $updateData = [
            'validated_at' => now(),
        ];

        if (!empty($articleData)) {
            $updateData['title'] = $articleData['title'] ?? null;
            $updateData['description'] = $articleData['description'] ?? null;
            $updateData['full_article'] = $articleData['full_article'] ?? null;
            $updateData['thumbnail'] = $articleData['thumbnail'] ?? null;
        }
        
        if (!isset($articleData['full_article']) || empty($articleData['full_article'])) {
            logger()->warning('Article data missing full_article key', [
                'article_id' => $article->id,
                'url' => $article->url
            ]);
            
            $updateData['is_valid'] = false;
            $article->update($updateData);
            
            return $article->refresh();
        }
        
        $validationResult = self::validateByKeywords($articleData['full_article']);
        $updateData['is_valid'] = $validationResult;

        $article->update($updateData);

        return $article->refresh();
    }

    private static function validateByKeywords(string $full_article): bool
    {
        $keywords = [
            'N-VA', 'Bart De Wever', 'Frank Vandenbroucke',
        ];

        foreach ($keywords as $keyword) {
            if (stripos($full_article, $keyword) !== false) {
                return true;
            }
        }

        return false;
    }
}