<?php

namespace Give\Form\LegacyConsumer;

use Give\Framework\FieldsAPI\File;
use Give\Framework\FieldsAPI\Group;

use function do_action;

/**
 * This class set "enctype" form tag  attribute to "multipart/form-data".
 *
 * @NOTE Attribute value will only set if "file" tile custom field register to donation form.
 * This helps to access donor files on server.
 *
 * @since 2.14.0
 */
class AddEnctypeAttributeInDonationForm
{
    /**
     * @var int
     */
    private $formId;

    /**
     * @since 2.14.0
     *
     * @param int $formId
     */
    public function __construct($formId)
    {
        $this->formId = $formId;
    }

    /**
     * @since 2.14.0
     *
     * @param array $formHtmlAttributes
     * @param string $hook
     */
    public function __invoke($formHtmlAttributes, $hook)
    {
        $collection = Group::make($hook);
        do_action("give_fields_$hook", $collection, $this->formId);
        $collection->walkFields(
        /* @var File $field */
            function ($field) use (&$formHtmlAttributes) {
                if ('file' === $field->getType()) {
                    $formHtmlAttributes['enctype'] = 'multipart/form-data';

                    return $formHtmlAttributes;
                }
            }
        );

        return $formHtmlAttributes;
    }
}