<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */
declare (strict_types=1);
namespace Packetery\Nette\Forms;

use Packetery\Nette;
/**
 * A user group of form controls.
 */
class ControlGroup
{
    use \Packetery\Nette\SmartObject;
    /** @var \SplObjectStorage */
    protected $controls;
    /** @var array user options */
    private $options = [];
    public function __construct()
    {
        $this->controls = new \SplObjectStorage();
    }
    /** @return static */
    public function add(...$items)
    {
        foreach ($items as $item) {
            if ($item instanceof Control) {
                $this->controls->attach($item);
            } elseif ($item instanceof Container) {
                foreach ($item->getComponents() as $component) {
                    $this->add($component);
                }
            } elseif (\is_iterable($item)) {
                $this->add(...$item);
            } else {
                $type = \is_object($item) ? \get_class($item) : \gettype($item);
                throw new \Packetery\Nette\InvalidArgumentException("Control or Container items expected, {$type} given.");
            }
        }
        return $this;
    }
    public function remove(Control $control) : void
    {
        $this->controls->detach($control);
    }
    public function removeOrphans() : void
    {
        foreach ($this->controls as $control) {
            if (!$control->getForm(\false)) {
                $this->controls->detach($control);
            }
        }
    }
    /** @return Control[] */
    public function getControls() : array
    {
        return \iterator_to_array($this->controls);
    }
    /**
     * Sets user-specific option.
     * Options recognized by DefaultFormRenderer
     * - 'label' - textual or \Packetery\Nette\HtmlStringable object label
     * - 'visual' - indicates visual group
     * - 'container' - container as Html object
     * - 'description' - textual or \Packetery\Nette\HtmlStringable object description
     * - 'embedNext' - describes how render next group
     *
     * @return static
     */
    public function setOption(string $key, $value)
    {
        if ($value === null) {
            unset($this->options[$key]);
        } else {
            $this->options[$key] = $value;
        }
        return $this;
    }
    /**
     * Returns user-specific option.
     * @return mixed
     */
    public function getOption(string $key, $default = null)
    {
        return $this->options[$key] ?? $default;
    }
    /**
     * Returns user-specific options.
     */
    public function getOptions() : array
    {
        return $this->options;
    }
}