<?php
namespace ContentNation\ActivityPub\Common;
require_once("Document.php");
class Note extends APObject {

  /**
   * sender
   *
   * @var string
   */
  private $sender = "";

  /**
   * receiver
   *
   * @var string
   */
  private $receiver = "";

  public function __construct() {
    parent::__construct("Note");
  }

  /**
   * set sender
   * @param string $sender note sender
   * @return Note current instance
   */
  public function setSender(string $sender) : Note {
    $this->sender = $sender;
    return $this;
  }

  /**
   * get sender
   * @return string sender
   */
  public function getSender() : string {
    return $this->sender;
  }

  /**
   * set receiver
   * @param string $receiver note receiver
   * @return Note current instance
   */
  public function setReceiver(string $receiver) : Note {
    $this->receiver = $receiver;
    return $this;
  }

  /**
   * convert internal state to php array
   * @return array<string,mixed>
   */
  public function toObject() {
    $return = parent::toObject();
    if ($this->sender !== "") {
      $return['sender'] = $this->sender;
    }
    if ($this->receiver !== "") {
      $return['receiver'] = $this->receiver;
    }
    return $return;
  }

  /**
   * create object from json
   * @param mixed $json input json
   */
  public function fromJson($json) : bool {
    if (!parent::fromJson($json))
      return false;
    $this->receiver = "";
    return true;
  }
}