<?php

namespace Modules\Countries\Rules;

use Closure;
use Illuminate\Contracts\Validation\ValidationRule;
use Modules\Countries\Models\CountrySubdivision;

class ValidIso3166SubdivisionCode implements ValidationRule
{
    public function __construct(private readonly bool $activeOnly = true) {}

    public function validate(string $attribute, mixed $value, Closure $fail): void
    {
        if (! is_string($value) || ! preg_match('/^[A-Z]{2}-[A-Z0-9]{1,6}$/', strtoupper($value))) {
            $fail('The :attribute must be a valid ISO 3166-2 subdivision code.');

            return;
        }

        $query = CountrySubdivision::query()->where('code', strtoupper($value));

        if ($this->activeOnly) {
            $query->where('is_active', true);
        }

        if (! $query->exists()) {
            $fail('The :attribute must be a supported ISO 3166-2 subdivision code.');
        }
    }
}