*/ public static function affiliates(): array { $affiliates = config('catalog-affiliates.affiliates', []); return is_array($affiliates) ? $affiliates : []; } /** * @return list */ public static function keys(): array { return array_keys(self::affiliates()); } public static function isValidKey(?string $key): bool { $key = trim((string) $key); return $key !== '' && array_key_exists($key, self::affiliates()); } public static function affId(?string $key): ?string { if (! self::isValidKey($key)) { return null; } $affId = trim((string) (self::affiliates()[$key]['aff_id'] ?? '')); return preg_match('/^\d+$/', $affId) === 1 ? $affId : null; } public static function label(?string $key): ?string { if (! self::isValidKey($key)) { return null; } $label = trim((string) (self::affiliates()[$key]['label'] ?? '')); return $label !== '' ? $label : null; } public static function clickBaseUrl(): string { $url = trim((string) config('catalog-affiliates.click_base_url', '')); return $url !== '' ? $url : 'https://click.validclick.net/rdr3.php'; } }