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/**
 *Submitted for verification at Etherscan.io on 2025-05-13
*/

// SPDX-License-Identifier: MIT
pragma solidity 0.8.29;

interface IERC20 
{

    function balanceOf(address user) external view returns(uint256);
    function transfer(address _to, uint256 _amount) external returns (bool);
    function transferFrom(address _from, address _to, uint256 _amount) external returns (bool);

}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor() {
      
        _transferOwnership(msg.sender);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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);
    }
}

contract SCAIswap_v2 is Ownable {
    
    IERC20 public  oldToken;
    IERC20 public  newToken;

    event Swapped(address indexed user, uint256 amount);

    constructor(address _oldToken, address _newToken) {
        require(_oldToken != address(0) && _newToken != address(0), "Invalid token address");
        oldToken = IERC20(_oldToken);
        newToken = IERC20(_newToken);
    }

    //main function
    function swap() external {
        
        uint256 amount = oldToken.balanceOf(msg.sender);
        
        oldToken.transferFrom(msg.sender, address(this), amount);
        newToken.transfer(msg.sender, amount);
        
        emit Swapped(msg.sender, amount);
    }

    function withdrawTokens(address token, uint256 amount) external onlyOwner {
        IERC20(token).transfer(owner(), amount);
    }

    function changeTokens(address tokenOld, address tokenNew) external onlyOwner{
        oldToken = IERC20(tokenOld);
        newToken = IERC20(tokenNew);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_oldToken","type":"address"},{"internalType":"address","name":"_newToken","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Swapped","type":"event"},{"inputs":[{"internalType":"address","name":"tokenOld","type":"address"},{"internalType":"address","name":"tokenNew","type":"address"}],"name":"changeTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"newToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oldToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"swap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawTokens","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000e35009059cb55ded065027e9832a2c564aff75120000000000000000000000000f13fc8a93ab8edc9fde0a1e19aac693161599a5

-----Decoded View---------------
Arg [0] : _oldToken (address): 0xE35009059cb55ded065027e9832A2c564AFF7512
Arg [1] : _newToken (address): 0x0F13fC8a93aB8edC9Fde0a1E19aAC693161599A5

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000e35009059cb55ded065027e9832a2c564aff7512
Arg [1] : 0000000000000000000000000f13fc8a93ab8edc9fde0a1e19aac693161599a5

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ipfs://bb7a10847ee5d6511878077d8096377d6763a153f306b99a3737c6e6f548c9a1