<?php

namespace App\Rules;

use Illuminate\Contracts\Validation\ValidationRule;
use Illuminate\Support\Str;

/**
 * Check the length of a Wysiwyg field, excluding tags and end spaces.
 *
 * @package App\Rules
 */
class WysiwygLength implements ValidationRule
{
    /**
     * Construct method.
     *
     * @param integer      $min The minimum length of the content (excluding tags). Default is 15.
     * @param integer|null $max The maximum length of the content (excluding tags).
     *  Default is null (max will be defined by the type of the column in DB).
     * @return void
     * @throws \InvalidArgumentException If $max < $min.
     */
    public function __construct(private int $min = 15, private int|null $max = null)
    {
        if ($max !== null && $max < $min && $min < 0) {
            throw new \InvalidArgumentException(sprintf(
                '$max should be higher than $min. $max = %d. $min = %d.',
                $max,
                $min
            ));
        }
    }

    /**
     * Run the validation rule.
     *
     * @param string   $attribute
     * @param mixed    $value
     * @param \Closure $fail
     *
     * @return void
     */
    public function validate(string $attribute, mixed $value, \Closure $fail): void
    {
        $length = Str::length(\strip_tags($value));

        $translatedAttribute = self::getTranslatedAttribute($attribute);
        if (!\is_null($this->max) and !($length >= $this->min && $length <= $this->max)) {
            $fail(trans('validation.between.string', [
                'attribute' => $translatedAttribute,
                'min' => $this->min,
                'max' => $this->max
            ]));
            return;
        }
        if ($length < $this->min) {
            $fail(trans('validation.min.string', [
                'attribute' => $translatedAttribute,
                'min' => $this->min
            ]));
        }
    }

    /**
     * Get the correct translation for the given attrribute.
     *
     * @param string $attribute
     * @return string
     */
    private static function getTranslatedAttribute(string $attribute): string
    {
        /** @var \Illuminate\Translation\Translator $trans */
        $trans = trans();
        if ($trans->has('validation.attributes.' . $attribute)) {
            return trans('validation.attributes.' . $attribute);
        }
        if ($trans->has('validation.custom.' . $attribute)) {
            return trans('validation.custom.' . $attribute);
        }
        return $attribute;
    }
}