matrix-specification/Data/Contact.php


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<?php

namespace Matrix\Data;

use Matrix\Enums\Role;

class Contact implements \JsonSerializable
{
  public function __construct(
    private Role|string $role,
    private ?string $emailAddress = null,
    private ?string $matrixId = null,
  )
  {
    if (is_null($emailAddress) && is_null($matrixId)) {
      throw new \InvalidArgumentException("at least one of emailAddress or matrixId is required");
    }
  }

  public function jsonSerialize(): array
  {
    return array_filter([
      "email_address" => $this->emailAddress,
      "matrix_id" => $this->matrixId,
      "role" => $this->role,
    ], fn ($value) => ! is_null($value));
  }
}