['nullable', 'string', 'max:255'], 'status' => ['nullable', 'string', 'max:30'], 'device_type_id' => ['nullable', 'integer', 'exists:topology_device_types,id'], 'link_type' => ['nullable', Rule::in(['fiber', 'wireless', 'ethernet', 'logical'])], 'bbox' => ['nullable', 'regex:/^-?\d+(\.\d+)?,-?\d+(\.\d+)?,-?\d+(\.\d+)?,-?\d+(\.\d+)?$/'], 'page' => ['nullable', 'integer', 'min:1'], 'per_page' => ['nullable', 'integer', 'min:1', 'max:100'], 'sort_by' => ['nullable', Rule::in(['id', 'code', 'name', 'status', 'category', 'link_type', 'installed_at', 'created_at'])], 'sort_direction' => ['nullable', Rule::in(['asc', 'desc'])], ]; } }