<?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;

use Nette;
use Nette\Schema\Elements\AnyOf;
use Nette\Schema\Elements\Structure;
use Nette\Schema\Elements\Type;


/**
 * Schema generator.
 *
 * @method static Type scalar($default = null)
 * @method static Type string($default = null)
 * @method static Type int($default = null)
 * @method static Type float($default = null)
 * @method static Type bool($default = null)
 * @method static Type null()
 * @method static Type array($default = [])
 * @method static Type list($default = [])
 * @method static Type mixed($default = null)
 * @method static Type email($default = null)
 * @method static Type unicode($default = null)
 */
final class Expect
{
    public static function __callStatic(string $name, array $args): Type
    {
        $type = new Type($name);
        if ($args) {
            $type->default($args[0]);
        }

        return $type;
    }


    public static function type(string $type): Type
    {
        return new Type($type);
    }


    public static function anyOf(mixed ...$set): AnyOf
    {
        return new AnyOf(...$set);
    }


    /**
     * @param  Schema[]  $items
     */
    public static function structure(array $items): Structure
    {
        return new Structure($items);
    }


    public static function from(object $object, array $items = []): Structure
    {
        $ro = new \ReflectionObject($object);
        $props = $ro->hasMethod('__construct')
            ? $ro->getMethod('__construct')->getParameters()
            : $ro->getProperties();

        foreach ($props as $prop) {
            $item = &$items[$prop->getName()];
            if (!$item) {
                $type = Helpers::getPropertyType($prop) ?? 'mixed';
                $item = new Type($type);
                if ($prop instanceof \ReflectionProperty ? $prop->isInitialized($object) : $prop->isOptional()) {
                    $def = ($prop instanceof \ReflectionProperty ? $prop->getValue($object) : $prop->getDefaultValue());
                    if (is_object($def)) {
                        $item = static::from($def);
                    } elseif ($def === null && !Nette\Utils\Validators::is(null, $type)) {
                        $item->required();
                    } else {
                        $item->default($def);
                    }
                } else {
                    $item->required();
                }
            }
        }

        return (new Structure($items))->castTo($ro->getName());
    }


    public static function arrayOf(string|Schema $valueType, string|Schema $keyType = null): Type
    {
        return (new Type('array'))->items($valueType, $keyType);
    }


    public static function listOf(string|Schema $type): Type
    {
        return (new Type('list'))->items($type);
    }
}

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