<?php

namespace Nette\Schema;

use Nette;
use Nette\Utils\Reflection;

/**
 * @internal
 */
final class Helpers
{
    use Nette\StaticClass;

    public const PreventMerging = '_prevent_merging';
    public const PREVENT_MERGING = self::PreventMerging;

    /**
     * Merges dataset. Left has higher priority than right one.
     * @return array|string
     */
    public static function merge($value, $base)
    {
        if (is_array($value) && isset($value[self::PreventMerging])) {
            unset($value[self::PreventMerging]);
            return $value;
        }

        if (is_array($value) && is_array($base)) {
            $index = 0;
            foreach ($value as $key => $val) {
                if ($key === $index) {
                    $base[] = $val;
                    $index++;
                } else {
                    $base[$key] = static::merge($val, $base[$key] ?? null);
                }
            }

            return $base;

        } elseif ($value === null && is_array($base)) {
            return $base;

        } else {
            return $value;
        }
    }

    public static function getPropertyType(\ReflectionProperty $prop): ?string
    {
        if (!class_exists(Nette\Utils\Type::class)) {
            throw new Nette\NotSupportedException('Expect::from() requires nette/utils 3.x');
        } elseif ($type = Nette\Utils\Type::fromReflection($prop)) {
            return (string) $type;
        } elseif ($type = preg_replace('#\s.*#', '', (string) self::parseAnnotation($prop, 'var'))) {
            $class = Reflection::getPropertyDeclaringClass($prop);
            return preg_replace_callback('#[\w\\\\]+#', function ($m) use ($class) {
                return Reflection::expandClassName($m[0], $class);
            }, $type);
        }

        return null;
    }

    /**
     * Returns an annotation value.
     * @param  \ReflectionProperty  $ref
     */
    public static function parseAnnotation(\Reflector $ref, string $name): ?string
    {
        if (!Reflection::areCommentsAvailable()) {
            throw new Nette\InvalidStateException('You have to enable phpDoc comments in opcode cache.');
        }

        $re = '#[\s*]@' . preg_quote($name, '#') . '(?=\s|$)(?:[ \t]+([^@\s]\S*))?#';
        if ($ref->getDocComment() && preg_match($re, trim($ref->getDocComment(), '/*'), $m)) {
            return $m[1] ?? '';
        }

        return null;
    }

    /**
     * @param  mixed  $value
     */
    public static function formatValue($value): string
    {
        if (is_object($value)) {
            return 'object ' . get_class($value);
        } elseif (is_string($value)) {
            return "'" . Nette\Utils\Strings::truncate($value, 15, '...') . "'";
        } elseif (is_scalar($value)) {
            return var_export($value, true);
        } else {
            return strtolower(gettype($value));
        }
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTAwMDM2MDI3MTkyOTY0MiA4NDU1MTgxODQ2Njc5OTY4IDMzMDkxNTAwOTA3NzUwNzA=