<?php

namespace Kirby\Form;

use Closure;
use Kirby\Toolkit\Collection;

/**
 * A collection of Field objects
 *
 * @package   Kirby Form
 * @author    Bastian Allgeier <bastian@getkirby.com>
 * @link      https://getkirby.com
 * @copyright Bastian Allgeier
 * @license   https://opensource.org/licenses/MIT
 */
class Fields extends Collection
{
	/**
	 * Internal setter for each object in the Collection.
	 * This takes care of validation and of setting
	 * the collection prop on each object correctly.
	 *
	 * @param object|array $field
	 */
	public function __set(string $name, $field): void
	{
		if (is_array($field) === true) {
			// use the array key as name if the name is not set
			$field['name'] ??= $name;
			$field = Field::factory($field['type'], $field, $this);
		}

		parent::__set($field->name(), $field);
	}

	/**
	 * Converts the fields collection to an
	 * array and also does that for every
	 * included field.
	 */
	public function toArray(Closure|null $map = null): array
	{
		$array = [];

		foreach ($this as $field) {
			$array[$field->name()] = $field->toArray();
		}

		return $array;
	}
}