<?php

namespace Matrix\Responses;

class ClientUserIdFilterPostResponse implements \JsonSerializable
{
  public function __construct(
    private string $filterId,
  )
  {
    if (str_starts_with($filterId, "{")) {
      throw new \InvalidArgumentException("filterId cannot start with a { as this character is used to determine if the filter provided is inline JSON or a previously declared filter by homeservers on some APIs");
    }
  }

  public function jsonSerialize(): array
  {
    return [
      "filter_id" => $this->filterId,
    ];
  }
}