<?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 Nette\Schema\Elements;

use Nette;
use Nette\Schema\Context;
use Nette\Schema\Helpers;
use Nette\Schema\Schema;


final class Structure implements Schema
{
	use Base;
	use Nette\SmartObject;

	/** @var Schema[] */
	private $items;

	/** @var Schema|null  for array|list */
	private $otherItems;

	/** @var array{?int, ?int} */
	private $range = [null, null];

	/** @var bool */
	private $skipDefaults = false;


	/**
	 * @param  Schema[]  $items
	 */
	public function __construct(array $items)
	{
		(function (Schema ...$items) {})(...array_values($items));
		$this->items = $items;
		$this->castTo('object');
		$this->required = true;
	}


	public function default($value): self
	{
		throw new Nette\InvalidStateException('Structure cannot have default value.');
	}


	public function min(?int $min): self
	{
		$this->range[0] = $min;
		return $this;
	}


	public function max(?int $max): self
	{
		$this->range[1] = $max;
		return $this;
	}


	/**
	 * @param  string|Schema  $type
	 */
	public function otherItems($type = 'mixed'): self
	{
		$this->otherItems = $type instanceof Schema ? $type : new Type($type);
		return $this;
	}


	public function skipDefaults(bool $state = true): self
	{
		$this->skipDefaults = $state;
		return $this;
	}


	/********************* processing ****************d*g**/


	public function normalize($value, Context $context)
	{
		if ($prevent = (is_array($value) && isset($value[Helpers::PreventMerging]))) {
			unset($value[Helpers::PreventMerging]);
		}

		$value = $this->doNormalize($value, $context);
		if (is_object($value)) {
			$value = (array) $value;
		}

		if (is_array($value)) {
			foreach ($value as $key => $val) {
				$itemSchema = $this->items[$key] ?? $this->otherItems;
				if ($itemSchema) {
					$context->path[] = $key;
					$value[$key] = $itemSchema->normalize($val, $context);
					array_pop($context->path);
				}
			}

			if ($prevent) {
				$value[Helpers::PreventMerging] = true;
			}
		}

		return $value;
	}


	public function merge($value, $base)
	{
		if (is_array($value) && isset($value[Helpers::PreventMerging])) {
			unset($value[Helpers::PreventMerging]);
			$base = null;
		}

		if (is_array($value) && is_array($base)) {
			$index = 0;
			foreach ($value as $key => $val) {
				if ($key === $index) {
					$base[] = $val;
					$index++;
				} elseif (array_key_exists($key, $base)) {
					$itemSchema = $this->items[$key] ?? $this->otherItems;
					$base[$key] = $itemSchema
						? $itemSchema->merge($val, $base[$key])
						: Helpers::merge($val, $base[$key]);
				} else {
					$base[$key] = $val;
				}
			}

			return $base;
		}

		return Helpers::merge($value, $base);
	}


	public function complete($value, Context $context)
	{
		if ($value === null) {
			$value = []; // is unable to distinguish null from array in NEON
		}

		$this->doDeprecation($context);

		$isOk = $context->createChecker();
		Helpers::validateType($value, 'array', $context);
		$isOk() && Helpers::validateRange($value, $this->range, $context);
		$isOk() && $this->validateItems($value, $context);
		$isOk() && $value = $this->doTransform($value, $context);
		return $isOk() ? $value : null;
	}


	private function validateItems(array &$value, Context $context): void
	{
		$items = $this->items;
		if ($extraKeys = array_keys(array_diff_key($value, $items))) {
			if ($this->otherItems) {
				$items += array_fill_keys($extraKeys, $this->otherItems);
			} else {
				$keys = array_map('strval', array_keys($items));
				foreach ($extraKeys as $key) {
					$hint = Nette\Utils\ObjectHelpers::getSuggestion($keys, (string) $key);
					$context->addError(
						'Unexpected item %path%' . ($hint ? ", did you mean '%hint%'?" : '.'),
						Nette\Schema\Message::UnexpectedItem,
						['hint' => $hint]
					)->path[] = $key;
				}
			}
		}

		foreach ($items as $itemKey => $itemVal) {
			$context->path[] = $itemKey;
			if (array_key_exists($itemKey, $value)) {
				$value[$itemKey] = $itemVal->complete($value[$itemKey], $context);
			} else {
				$default = $itemVal->completeDefault($context); // checks required item
				if (!$context->skipDefaults && !$this->skipDefaults) {
					$value[$itemKey] = $default;
				}
			}

			array_pop($context->path);
		}
	}


	public function completeDefault(Context $context)
	{
		return $this->required
			? $this->complete([], $context)
			: null;
	}
}

• [F] AnyOf.php
  Delete
• [F] Base.php
  Delete
• [F] Structure.php
  Delete
• [F] Type.php
  Delete

Reset Your Forgotten Password?

Take control of your account by resetting your password. Our password recovery page guides you through the necessary steps to securely reset your password.

Send OTP

Already Have An Account? Login Now