WorldProviderManager.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\world\format\io;
 
use pocketmine\utils\Utils;
use pocketmine\world\format\io\leveldb\LevelDB;
use pocketmine\world\format\io\region\Anvil;
use pocketmine\world\format\io\region\McRegion;
use pocketmine\world\format\io\region\PMAnvil;
use function strtolower;
use function trim;
 
final class WorldProviderManager{
    protected array $providers = [];
 
    private WritableWorldProviderManagerEntry $default;
 
    public function __construct(){
        $leveldb = new WritableWorldProviderManagerEntry(LevelDB::isValid(...), fn(string $path, \Logger $logger) => new LevelDB($path, $logger), LevelDB::generate(...));
        $this->default = $leveldb;
        $this->addProvider($leveldb, "leveldb");
 
        $this->addProvider(new ReadOnlyWorldProviderManagerEntry(Anvil::isValid(...), fn(string $path, \Logger $logger) => new Anvil($path, $logger)), "anvil");
        $this->addProvider(new ReadOnlyWorldProviderManagerEntry(McRegion::isValid(...), fn(string $path, \Logger $logger) => new McRegion($path, $logger)), "mcregion");
        $this->addProvider(new ReadOnlyWorldProviderManagerEntry(PMAnvil::isValid(...), fn(string $path, \Logger $logger) => new PMAnvil($path, $logger)), "pmanvil");
    }
 
    public function getDefault() : WritableWorldProviderManagerEntry{
        return $this->default;
    }
 
    public function setDefault(WritableWorldProviderManagerEntry $class) : void{
        $this->default = $class;
    }
 
    public function addProvider(WorldProviderManagerEntry $providerEntry, string $name, bool $overwrite = false) : void{
        $name = strtolower($name);
        if(!$overwrite && isset($this->providers[$name])){
            throw new \InvalidArgumentException("Alias \"$name\" is already assigned");
        }
 
        $this->providers[$name] = $providerEntry;
    }
 
    public function getMatchingProviders(string $path) : array{
        $result = [];
        foreach(Utils::stringifyKeys($this->providers) as $alias => $providerEntry){
            if($providerEntry->isValid($path)){
                $result[$alias] = $providerEntry;
            }
        }
        return $result;
    }
 
    public function getAvailableProviders() : array{
        return $this->providers;
    }
 
    public function getProviderByName(string $name) : ?WorldProviderManagerEntry{
        return $this->providers[trim(strtolower($name))] ?? null;
    }
}