// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "IERC721.sol";
import "ERC721Holder.sol";

contract NFTBulkSender is ERC721Holder {
    event BulkTransferCompleted(address indexed sender, address indexed receiver, uint256 totalTransferred);

    function bulkSend(
        address[] memory contractAddresses,
        uint256[] memory tokenIds,
        address receiver
    ) external {
        require(contractAddresses.length == tokenIds.length, "Input arrays must have the same length");
        require(receiver != address(0), "Invalid receiver address");

        uint256 totalTransferred = 0;

        for (uint256 i = 0; i < contractAddresses.length; i++) {
            IERC721 nftContract = IERC721(contractAddresses[i]);
            uint256 tokenId = tokenIds[i];

            require(nftContract.ownerOf(tokenId) == msg.sender, "Sender must own the NFT");

            nftContract.safeTransferFrom(msg.sender, receiver, tokenId);
            totalTransferred++;
        }

        emit BulkTransferCompleted(msg.sender, receiver, totalTransferred);
    }
}