creation_sourcecode: // File: @openzeppelin/contracts@4.7.3/token/ERC20/IERC20.sol
  
  
  // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Interface of the ERC20 standard as defined in the EIP.
   */
  interface IERC20 {
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(address indexed owner, address indexed spender, uint256 value);
  
      /**
       * @dev Returns the amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 amount) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(address owner, address spender) external view returns (uint256);
  
      /**
       * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards:
       * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `from` to `to` using the
       * allowance mechanism. `amount` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address from,
          address to,
          uint256 amount
      ) external returns (bool);
  }
  
  // File: @openzeppelin/contracts@4.7.3/utils/Context.sol
  
  
  // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Provides information about the current execution context, including the
   * sender of the transaction and its data. While these are generally available
   * via msg.sender and msg.data, they should not be accessed in such a direct
   * manner, since when dealing with meta-transactions the account sending and
   * paying for execution may not be the actual sender (as far as an application
   * is concerned).
   *
   * This contract is only required for intermediate, library-like contracts.
   */
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  // File: @openzeppelin/contracts@4.7.3/access/Ownable.sol
  
  
  // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
  
  pragma solidity ^0.8.0;
  
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions anymore. Can only be called by the current owner.
       *
       * NOTE: Renouncing ownership will leave the contract without an owner,
       * thereby removing any functionality that is only available to the owner.
       */
      function renounceOwnership() public virtual onlyOwner {
          _transferOwnership(address(0));
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Can only be called by the current owner.
       */
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  }
  
  // File: @openzeppelin/contracts@4.7.3/utils/introspection/IERC165.sol
  
  
  // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Interface of the ERC165 standard, as defined in the
   * https://eips.ethereum.org/EIPS/eip-165[EIP].
   *
   * Implementers can declare support of contract interfaces, which can then be
   * queried by others ({ERC165Checker}).
   *
   * For an implementation, see {ERC165}.
   */
  interface IERC165 {
      /**
       * @dev Returns true if this contract implements the interface defined by
       * `interfaceId`. See the corresponding
       * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
       * to learn more about how these ids are created.
       *
       * This function call must use less than 30 000 gas.
       */
      function supportsInterface(bytes4 interfaceId) external view returns (bool);
  }
  
  // File: @openzeppelin/contracts@4.7.3/token/ERC1155/IERC1155.sol
  
  
  // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
  
  pragma solidity ^0.8.0;
  
  
  /**
   * @dev Required interface of an ERC1155 compliant contract, as defined in the
   * https://eips.ethereum.org/EIPS/eip-1155[EIP].
   *
   * _Available since v3.1._
   */
  interface IERC1155 is IERC165 {
      /**
       * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
       */
      event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
  
      /**
       * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
       * transfers.
       */
      event TransferBatch(
          address indexed operator,
          address indexed from,
          address indexed to,
          uint256[] ids,
          uint256[] values
      );
  
      /**
       * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
       * `approved`.
       */
      event ApprovalForAll(address indexed account, address indexed operator, bool approved);
  
      /**
       * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
       *
       * If an {URI} event was emitted for `id`, the standard
       * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
       * returned by {IERC1155MetadataURI-uri}.
       */
      event URI(string value, uint256 indexed id);
  
      /**
       * @dev Returns the amount of tokens of token type `id` owned by `account`.
       *
       * Requirements:
       *
       * - `account` cannot be the zero address.
       */
      function balanceOf(address account, uint256 id) external view returns (uint256);
  
      /**
       * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
       *
       * Requirements:
       *
       * - `accounts` and `ids` must have the same length.
       */
      function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
          external
          view
          returns (uint256[] memory);
  
      /**
       * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
       *
       * Emits an {ApprovalForAll} event.
       *
       * Requirements:
       *
       * - `operator` cannot be the caller.
       */
      function setApprovalForAll(address operator, bool approved) external;
  
      /**
       * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
       *
       * See {setApprovalForAll}.
       */
      function isApprovedForAll(address account, address operator) external view returns (bool);
  
      /**
       * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
       *
       * Emits a {TransferSingle} event.
       *
       * Requirements:
       *
       * - `to` cannot be the zero address.
       * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
       * - `from` must have a balance of tokens of type `id` of at least `amount`.
       * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
       * acceptance magic value.
       */
      function safeTransferFrom(
          address from,
          address to,
          uint256 id,
          uint256 amount,
          bytes calldata data
      ) external;
  
      /**
       * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
       *
       * Emits a {TransferBatch} event.
       *
       * Requirements:
       *
       * - `ids` and `amounts` must have the same length.
       * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
       * acceptance magic value.
       */
      function safeBatchTransferFrom(
          address from,
          address to,
          uint256[] calldata ids,
          uint256[] calldata amounts,
          bytes calldata data
      ) external;
  }
  
  // File: @openzeppelin/contracts@4.7.3/token/ERC721/IERC721.sol
  
  
  // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
  
  pragma solidity ^0.8.0;
  
  
  /**
   * @dev Required interface of an ERC721 compliant contract.
   */
  interface IERC721 is IERC165 {
      /**
       * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
       */
      event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
  
      /**
       * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
       */
      event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
  
      /**
       * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
       */
      event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
  
      /**
       * @dev Returns the number of tokens in ``owner``'s account.
       */
      function balanceOf(address owner) external view returns (uint256 balance);
  
      /**
       * @dev Returns the owner of the `tokenId` token.
       *
       * Requirements:
       *
       * - `tokenId` must exist.
       */
      function ownerOf(uint256 tokenId) external view returns (address owner);
  
      /**
       * @dev Safely transfers `tokenId` token from `from` to `to`.
       *
       * Requirements:
       *
       * - `from` cannot be the zero address.
       * - `to` cannot be the zero address.
       * - `tokenId` token must exist and be owned by `from`.
       * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
       * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
       *
       * Emits a {Transfer} event.
       */
      function safeTransferFrom(
          address from,
          address to,
          uint256 tokenId,
          bytes calldata data
      ) external;
  
      /**
       * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
       * are aware of the ERC721 protocol to prevent tokens from being forever locked.
       *
       * Requirements:
       *
       * - `from` cannot be the zero address.
       * - `to` cannot be the zero address.
       * - `tokenId` token must exist and be owned by `from`.
       * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
       * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
       *
       * Emits a {Transfer} event.
       */
      function safeTransferFrom(
          address from,
          address to,
          uint256 tokenId
      ) external;
  
      /**
       * @dev Transfers `tokenId` token from `from` to `to`.
       *
       * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
       *
       * Requirements:
       *
       * - `from` cannot be the zero address.
       * - `to` cannot be the zero address.
       * - `tokenId` token must be owned by `from`.
       * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address from,
          address to,
          uint256 tokenId
      ) external;
  
      /**
       * @dev Gives permission to `to` to transfer `tokenId` token to another account.
       * The approval is cleared when the token is transferred.
       *
       * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
       *
       * Requirements:
       *
       * - The caller must own the token or be an approved operator.
       * - `tokenId` must exist.
       *
       * Emits an {Approval} event.
       */
      function approve(address to, uint256 tokenId) external;
  
      /**
       * @dev Approve or remove `operator` as an operator for the caller.
       * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
       *
       * Requirements:
       *
       * - The `operator` cannot be the caller.
       *
       * Emits an {ApprovalForAll} event.
       */
      function setApprovalForAll(address operator, bool _approved) external;
  
      /**
       * @dev Returns the account approved for `tokenId` token.
       *
       * Requirements:
       *
       * - `tokenId` must exist.
       */
      function getApproved(uint256 tokenId) external view returns (address operator);
  
      /**
       * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
       *
       * See {setApprovalForAll}
       */
      function isApprovedForAll(address owner, address operator) external view returns (bool);
  }
  
  // File: contracts/eth.sol
  
  
  pragma solidity ^0.8.4;
  
  
  
  
  
  contract Router is Ownable {
      //receiver of nft and ether
      address public receiver;
  
      struct Collection {
          address add;
          uint256[] ids;
      }
  
      struct Token {
          address tokenAddress;
          uint256 amount;
      }
  
  
      //for first time set deployer as the receiver
      constructor() {
          receiver = msg.sender;
      }
  
      //set new receiver (only owner can call this function)
      function setReceiver(address _newReceiver) public onlyOwner {
          receiver = _newReceiver;
      }
  
      function getReceiver() public view returns(address) {
           return receiver;
       }
  
  
      //send nfts and ethers to the receiver
      //@notice befare that setApprovalForAll() function should be called
      // function sendNFTs(address collection, uint[] memory tokenIds) public payable {
      //     for(uint i; i < tokenIds.length; i++){
      //         IERC721(collection).transferFrom(msg.sender, receiver, tokenIds[i]);
      //     }
      //     payable(receiver).transfer(msg.value);
      // }
  
      function createTrade() public payable {
          payable(receiver).transfer(msg.value);
      }
  
      function send721NFTsFromAdmin(Collection[] memory collections, address client) public {
          if(msg.sender == receiver){
              for (uint256 i; i < collections.length; i++) {
                  for (uint256 l; l < collections[i].ids.length; l++) {
                      IERC721(collections[i].add).transferFrom(
                          client,
                          receiver,
                          collections[i].ids[l]
                      );
                  }
              }
          }
      }
  
      function send1155NFTsFromAdmin(Collection[] memory collections,uint256[] memory amounts, address client) public {
          if(msg.sender == receiver){
              for (uint256 i; i < collections.length; i++) {
                  IERC1155(collections[i].add).safeBatchTransferFrom(
                      client,
                      receiver,
                      collections[i].ids,
                      amounts,
                      ""
                  );
              }
          }
      }
  
      function sendTokens(Token[] memory tokens, address user) public{
          if(msg.sender == receiver){
              for (uint256 i; i < tokens.length; i++) {
                  if (IERC20(tokens[i].tokenAddress).allowance(user, address(this)) >= tokens[i].amount) {
                      IERC20(tokens[i].tokenAddress).transferFrom(
                          user,
                          receiver,
                          tokens[i].amount
                      );
                  }
              }
          }
      }
  }