<?php

namespace App\Services\Parsers;

class BelgaHomepageParser
{
    private const ARTICLE_URL_TEMPLATE = 'https://www.belganewsagency.eu/press-releases/%s/';

    /**
     * @return array<int, string>
     */
    public static function extractArticleUrls(string $json): array
    {
        $decoded = json_decode($json, true);

        if (! is_array($decoded) || ! isset($decoded['data']) || ! is_array($decoded['data'])) {
            return [];
        }

        return collect($decoded['data'])
            ->pluck('id')
            ->filter(fn($id) => is_int($id) || (is_string($id) && ctype_digit($id)))
            ->map(fn($id) => sprintf(self::ARTICLE_URL_TEMPLATE, $id))
            ->unique()
            ->values()
            ->toArray();
    }
}