ItemIdMetaUpgradeSchemaUtils.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\data\bedrock\item\upgrade;
 
use pocketmine\data\bedrock\item\upgrade\model\ItemIdMetaUpgradeSchemaModel;
use pocketmine\utils\Filesystem;
use Symfony\Component\Filesystem\Path;
use function gettype;
use function is_object;
use function json_decode;
use function ksort;
use const JSON_THROW_ON_ERROR;
use const SORT_NUMERIC;
 
final class ItemIdMetaUpgradeSchemaUtils{
 
    public static function loadSchemas(string $path, int $maxSchemaId) : array{
        $iterator = new \RegexIterator(
            new \FilesystemIterator(
                $path,
                \FilesystemIterator::KEY_AS_FILENAME | \FilesystemIterator::SKIP_DOTS
            ),
            '/^(\d{4}).*\.json$/',
            \RegexIterator::GET_MATCH,
            \RegexIterator::USE_KEY
        );
 
        $result = [];
 
        foreach($iterator as $matches){
            $filename = $matches[0];
            $schemaId = (int) $matches[1];
            if($schemaId > $maxSchemaId){
                continue;
            }
 
            $fullPath = Path::join($path, $filename);
 
            $raw = Filesystem::fileGetContents($fullPath);
 
            try{
                $schema = self::loadSchemaFromString($raw, $schemaId);
            }catch(\RuntimeException $e){
                throw new \RuntimeException("Loading schema file $fullPath: " . $e->getMessage(), 0, $e);
            }
 
            $result[$schemaId] = $schema;
        }
 
        ksort($result, SORT_NUMERIC);
        return $result;
    }
 
    public static function loadSchemaFromString(string $raw, int $schemaId) : ItemIdMetaUpgradeSchema{
        try{
            $json = json_decode($raw, false, flags: JSON_THROW_ON_ERROR);
        }catch(\JsonException $e){
            throw new \RuntimeException($e->getMessage(), 0, $e);
        }
        if(!is_object($json)){
            throw new \RuntimeException("Unexpected root type of schema file " . gettype($json) . ", expected object");
        }
 
        $jsonMapper = new \JsonMapper();
        $jsonMapper->bExceptionOnMissingData = true;
        $jsonMapper->bExceptionOnUndefinedProperty = true;
        $jsonMapper->bStrictObjectTypeChecking = true;
        try{
            $model = $jsonMapper->map($json, new ItemIdMetaUpgradeSchemaModel());
        }catch(\JsonMapper_Exception $e){
            throw new \RuntimeException($e->getMessage(), 0, $e);
        }
 
        return new ItemIdMetaUpgradeSchema($model->renamedIds, $model->remappedMetas, $schemaId);
    }
}