ItemStackRequest.php

<?php
 
/*
 * This file is part of BedrockProtocol.
 * Copyright (C) 2014-2022 PocketMine Team <https://github.com/pmmp/BedrockProtocol>
 *
 * BedrockProtocol 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.
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\protocol\types\inventory\stackrequest;
 
use pmmp\encoding\Byte;
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\DataDecodeException;
use pmmp\encoding\LE;
use pmmp\encoding\VarInt;
use pocketmine\network\mcpe\protocol\PacketDecodeException;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use function count;
 
final class ItemStackRequest{
    public function __construct(
        private int $requestId,
        private array $actions,
        private array $filterStrings,
        private int $filterStringCause
    ){}
 
    public function getRequestId() : int{ return $this->requestId; }
 
    public function getActions() : array{ return $this->actions; }
 
    public function getFilterStrings() : array{ return $this->filterStrings; }
 
    public function getFilterStringCause() : int{ return $this->filterStringCause; }
 
    private static function readAction(ByteBufferReader $in, int $typeId) : ItemStackRequestAction{
        return match($typeId){
            TakeStackRequestAction::ID => TakeStackRequestAction::read($in),
            PlaceStackRequestAction::ID => PlaceStackRequestAction::read($in),
            SwapStackRequestAction::ID => SwapStackRequestAction::read($in),
            DropStackRequestAction::ID => DropStackRequestAction::read($in),
            DestroyStackRequestAction::ID => DestroyStackRequestAction::read($in),
            CraftingConsumeInputStackRequestAction::ID => CraftingConsumeInputStackRequestAction::read($in),
            CraftingCreateSpecificResultStackRequestAction::ID => CraftingCreateSpecificResultStackRequestAction::read($in),
            LabTableCombineStackRequestAction::ID => LabTableCombineStackRequestAction::read($in),
            BeaconPaymentStackRequestAction::ID => BeaconPaymentStackRequestAction::read($in),
            MineBlockStackRequestAction::ID => MineBlockStackRequestAction::read($in),
            CraftRecipeStackRequestAction::ID => CraftRecipeStackRequestAction::read($in),
            CraftRecipeAutoStackRequestAction::ID => CraftRecipeAutoStackRequestAction::read($in),
            CreativeCreateStackRequestAction::ID => CreativeCreateStackRequestAction::read($in),
            CraftRecipeOptionalStackRequestAction::ID => CraftRecipeOptionalStackRequestAction::read($in),
            GrindstoneStackRequestAction::ID => GrindstoneStackRequestAction::read($in),
            LoomStackRequestAction::ID => LoomStackRequestAction::read($in),
            DeprecatedCraftingNonImplementedStackRequestAction::ID => DeprecatedCraftingNonImplementedStackRequestAction::read($in),
            DeprecatedCraftingResultsStackRequestAction::ID => DeprecatedCraftingResultsStackRequestAction::read($in),
            default => throw new PacketDecodeException("Unhandled item stack request action type $typeId"),
        };
    }
 
    public static function read(ByteBufferReader $in) : self{
        $requestId = CommonTypes::readItemStackRequestId($in);
        $actions = [];
        for($i = 0, $len = VarInt::readUnsignedInt($in); $i < $len; ++$i){
            $typeId = Byte::readUnsigned($in);
            $actions[] = self::readAction($in, $typeId);
        }
        $filterStrings = [];
        for($i = 0, $len = VarInt::readUnsignedInt($in); $i < $len; ++$i){
            $filterStrings[] = CommonTypes::getString($in);
        }
        $filterStringCause = LE::readSignedInt($in);
        return new self($requestId, $actions, $filterStrings, $filterStringCause);
    }
 
    public function write(ByteBufferWriter $out) : void{
        CommonTypes::writeItemStackRequestId($out, $this->requestId);
        VarInt::writeUnsignedInt($out, count($this->actions));
        foreach($this->actions as $action){
            Byte::writeUnsigned($out, $action->getTypeId());
            $action->write($out);
        }
        VarInt::writeUnsignedInt($out, count($this->filterStrings));
        foreach($this->filterStrings as $string){
            CommonTypes::putString($out, $string);
        }
        LE::writeSignedInt($out, $this->filterStringCause);
    }
}