// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @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);
}

// File: contracts/TransferX.sol




// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma experimental ABIEncoderV2;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract TransferX {
event Memo(address indexed from, address indexed to, uint256 value, string memo,address tok);

address payable public Owner;
 constructor(address payable _owner) public {
        Owner = _owner;
    }
function withdraw(IERC20 Token) public{
    if (address(Token) == address(0)){
Owner.transfer(address(this).balance);
}
else {
require(Token.transfer(Owner, Token.balanceOf(address(this))));
}
}

 function transferx(
        address payable[] memory to,
        uint256[] memory tokens,
        string[] memory memo,
        IERC20 Token
    ) public payable returns (bool success) {
        require(to.length == tokens.length && tokens.length == memo.length);
        for (uint256 i = 0; i < to.length; i++) {
            if (address(Token) == address(0)){
to[i].transfer(tokens[i]);
emit Memo(msg.sender, to[i], tokens[i], memo[i], address(0));
}
else {
require(Token.transferFrom(msg.sender, to[i], tokens[i]));
            emit Memo(msg.sender, to[i], tokens[i], memo[i], address(Token));
}
        }
        return true;
    }

    
 function transferxFee(
        address payable[] memory to,
        uint256[] memory tokens,
        string[] memory memo,
        IERC20 Token, uint256 fee, address payable Payto
    ) public payable returns (bool success) {
        uint256 feePay;
        require(to.length == tokens.length && tokens.length == memo.length);
        require(fee <= 50);
        for (uint256 i = 0; i < to.length; i++) {
            if (address(Token) == address(0)){
to[i].transfer(tokens[i] * (1000-fee)/(1000));
feePay += tokens[i] * fee/1000;
emit Memo(msg.sender, to[i], tokens[i], memo[i], address(0));
}
else {
require(Token.transferFrom(msg.sender, to[i], tokens[i]*(1000-fee)/1000));
feePay += tokens[i]* fee/1000 ;
            emit Memo(msg.sender, to[i], tokens[i], memo[i], address(Token));
}
        }
        if (address(Token) == address(0)){
Payto.transfer(feePay);
}
else {
require(Token.transferFrom(msg.sender, Payto, feePay));
  }
        return true;
    }
}