<?php

namespace App\Validator;

use Symfony\Component\Validator\Constraint;

/**
 * Rejects {tokens} the mail being edited does not know.
 *
 * Without this a typo like {destinaton} would reach a teamer's inbox as a literal token
 * or, worse, silently as a dash.
 */
#[\Attribute(\Attribute::TARGET_PROPERTY | \Attribute::IS_REPEATABLE)]
class KnownPlaceholders extends Constraint
{
    public string $message = 'Unbekannter Platzhalter: {{ placeholder }}. Erlaubt sind: {{ allowed }}';

    /**
     * @var string[]
     */
    public array $allowed = [];

    /**
     * @param string[] $allowed
     */
    public function __construct(array $allowed = [], ?string $message = null, ?array $groups = null, mixed $payload = null)
    {
        parent::__construct(null, $groups, $payload);

        $this->allowed = $allowed;
        $this->message = $message ?? $this->message;
    }
}