Small example of generating Typescript interfaces from PHP classes

types.php

<?php

class BaseView extends View
{
}

class AuthorUserView extends BaseView
{
    #[Property(type: 'string')]
    public Ulid $id;

    public string $fullName;

    public string $email;

    public function __construct(User $user)
    {
        $this->id       = $user->getId();
        $this->fullName = $user->getFullName();
        $this->email    = $user->getEmail();
    }
}

class HasCreatedBy extends View
{
    /**
     * @template U
     *
     * @var U
     */
    #[GenericTypeVariable('U')]
    private array $createdBy;
}

class FullClientView extends BaseView
{
    use HasIdTrait;
    use HasTimestampsTrait;
    use HasAuthorTrait;

    public string  $companyName;
    public ?string $email;
}

/**
 * @template T
 */
#[GenericTypeVariable('U')]
class PaginatedResultView extends BaseView
{
    public int $total;

    /**
     * @var array<string, T>
     */
    #[GenericTypeVariable(extends: HasCreatedBy::class)]
    public array $data;
}

#[GenericTypeValue(AuthorUserView::class, 'U')]
class ListClientView extends BaseView
{
    #[GenericTypeValue(FullClientView::class, variable: 'T')]
    public PaginatedResultView $clients;

    public function __construct(PaginatedResult $result)
    {
        $this->clients = $this->paginated(FullClientView::class, $result);
    }
}

types.ts

export interface BaseView {
}

export interface AuthorUserView extends BaseView {
  id: string;
  fullName: string;
  email: string;
}

export interface HasCreatedBy<U> {
  createdBy: U;
}

export interface FullClientView extends BaseView {
  companyName: string;
  email: string | null;
  id: string;
  createdAt: number;
  updatedAt: number | null;
  createdBy: AuthorUserView;
  updatedBy: AuthorUserView | null;
}

export interface PaginatedResultView<U, T extends HasCreatedBy<U>> extends BaseView {
  total: number;
  data: Record<string, T>;
}

export interface ListClientView extends BaseView {
  clients: PaginatedResultView<AuthorUserView, FullClientView>;
}