Custom validation using Symfony Validator

<?php

$loader = require 'vendor/autoload.php';

$loader->add('Cognesy\\Instructor\\', __DIR__.'../../src/');



use Cognesy\Instructor\Instructor;

use Symfony\Component\Validator\Constraints as Assert;

use Symfony\Component\Validator\Context\ExecutionContextInterface;



class UserDetails

{

    public string $name;

    public int $age;



    #[Assert\Callback]

    public function validateName(ExecutionContextInterface $context, mixed $payload) {

        if ($this->name !== strtoupper($this->name)) {

            $context->buildViolation("Name must be all uppercase.")

                ->atPath('name')

                ->setInvalidValue($this->name)

                ->addViolation();

        }

    }

}



$user = (new Instructor)->respond(

    messages: [['role' => 'user', 'content' => 'jason is 25 years old']],

    responseModel: UserDetails::class,

    maxRetries: 2

);



dump($user);



assert($user->name === "JASON");

?>