Validation with llm

<?php
require 'examples/boot.php';

use Cognesy\Events\Event;
use Cognesy\Instructor\Extras\Scalar\Scalar;
use Cognesy\Instructor\StructuredOutput;
use Cognesy\Instructor\StructuredOutputRuntime;
use Cognesy\Instructor\Validation\Traits\ValidationMixin;
use Cognesy\Instructor\Validation\ValidationResult;
use Cognesy\Polyglot\Inference\LLMProvider;
use Cognesy\Schema\Attributes\Description;
use Cognesy\Utils\Str;

class UserDetails
{
    use ValidationMixin;

    public string $name;
    #[Description('User details in format: key=value')]
    /** @var string[]  */
    public array $details;

    public function validate() : ValidationResult {
        return match($this->hasPII()) {
            true => ValidationResult::fieldError(
                field: 'details',
                value: implode("\n", $this->details),
                message: "Details contain sensitive PII (phone numbers, SSNs, financial data) - remove those fields from the response."
            ),
            false => ValidationResult::valid(),
        };
    }

    private function hasPII() : bool {
        $data = implode("\n", $this->details);
        return StructuredOutput::using('openai')
            ->with(
                messages: "Text: {$data}\n\nDoes this text contain a phone number (e.g. +1 123 34 45), SSN (e.g. 123-45-6789), credit card, or bank account number? Answer TRUE only for those specific patterns. Answer FALSE for plain age numbers (e.g. 25), names, or job titles like 'developer'.",
                responseModel: Scalar::boolean('hasPII', 'True only if the text contains a phone number, SSN, credit card, or bank account number. False for age numbers, names, or job titles.'),
            )
            ->getBoolean();
    }
}

$text = <<<TEXT
    My name is Jason. I am is 25 years old. I am developer.
    My phone number is +1 123 34 45 and social security number is 123-45-6789
    TEXT;

$runtime = StructuredOutputRuntime::fromProvider(LLMProvider::using('openai'))
    ->withMaxRetries(2)
    ->wiretap(fn(Event $e) => $e->print()); // let's check the internals of Instructor processing

$user = (new StructuredOutput($runtime))
    ->with(
        messages: $text,
        responseModel: UserDetails::class,
    )->get();

dump($user);

assert(!Str::contains(implode("\n", $user->details), '123-45-6789'));
?>