Fast escrow

escrow3000.sol

// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;

import "github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/IERC721.sol";
import "github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/IERC721Receiver.sol";

contract EscrowUWU is IERC721Receiver{
    address private auctioncontract;
    function setAuctionContract(address _auctioncontract) external{
        require(auctioncontract == address(0));
        auctioncontract = _auctioncontract;
    }
    modifier onlyAuctionContract(){
        require(msg.sender == auctioncontract, "Only authorized contract");
        _;
    }
    function transferNFT(uint id, address nftContract, address to) external onlyAuctionContract {
        IERC721(nftContract).safeTransferFrom(address(this), to, id);
    }
    function transferNativeCurrency(uint amount, address payable to) external onlyAuctionContract {
        to.transfer(amount);
    }
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external pure override returns (bytes4){
        operator;
        from;
        tokenId;
        data;
        return this.onERC721Received.selector;
    }
}