Parse and validate AT Protocol Lexicons with DTO generation for Laravel
socialde.pt
1<?php
2
3namespace SocialDept\AtpSchema\Validation\Rules;
4
5use Closure;
6use Illuminate\Contracts\Validation\ValidationRule;
7
8class MaxGraphemes implements ValidationRule
9{
10 /**
11 * Maximum grapheme count.
12 */
13 protected int $max;
14
15 /**
16 * Create a new rule instance.
17 */
18 public function __construct(int $max)
19 {
20 $this->max = $max;
21 }
22
23 /**
24 * Run the validation rule.
25 */
26 public function validate(string $attribute, mixed $value, Closure $fail): void
27 {
28 if (! is_string($value)) {
29 $fail("The {$attribute} must be a string.");
30
31 return;
32 }
33
34 $count = grapheme_strlen($value);
35
36 if ($count > $this->max) {
37 $fail("The {$attribute} may not be greater than {$this->max} graphemes.");
38 }
39 }
40}