ldc-boutique-cnc-sable/app/Rules/Adult.php

<?php

declare(strict_types=1);

namespace App\Rules;

use Closure;
use Illuminate\Contracts\Validation\ValidationRule;
use Illuminate\Support\Facades\Date;

class Adult implements ValidationRule
{
    /** @param  \Closure(string, ?string=):\Illuminate\Translation\PotentiallyTranslatedString  $fail */
    public function validate(string $attribute, mixed $value, Closure $fail): void
    {
        if (! is_string($value)) {
            $fail('Erreur sur le champs : date de naissance.');

            return;
        }

        $majorityLimit = Date::now()->subYears(18);

        if ($this->isSqlDate($value)) {
            $d = Date::createFromFormat('Y-m-d', $value);
            if (! $d?->lessThanOrEqualTo($majorityLimit)) {
                $fail('Vous devez être majeur pour vous inscrire.');
            }
        } elseif ($this->isFormDate($value)) {
            $d = Date::createFromFormat('d/m/Y', $value);
            if (! $d?->lessThanOrEqualTo($majorityLimit)) {
                $fail('Vous devez être majeur pour vous inscrire.');
            }
        } else {
            $fail('Erreur sur le champs : date de naissance.');
        }
    }

    /**
     * Check if provided string is formatted for mysql
     */
    private function isSqlDate(string $date): bool
    {
        if (preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/', $date)) {
            return true;
        }

        return false;
    }

    /**
     * Check if provided string is formatted DD/MM/AAAA
     */
    private function isFormDate(string $date): bool
    {
        if (preg_match("/^(0[1-9]|[1-2][0-9]|3[0-1])\/(0[1-9]|1[0-2])\/[0-9]{4}$/", $date)) {
            return true;
        }

        return false;
    }
}