gistfile1.txt

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

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

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

contract Ownable is Context {
    address private _owner;
    address private _previousOwner;
    uint256 private _lockTime;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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 {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

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);
}


interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);
}

contract ShibaLord is Ownable, IERC20, IERC20Metadata {
    mapping (address => uint256) private _balances;
   
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFee;
    
    uint256 private _totalSupply;
    string private _name;
    string private _symbol;

    uint8 private constant _decimals = 18;
    uint256 private constant _marketFee = 3;
    uint256 private constant basePercent = 100;
    uint256 private constant base = 10000;

    address private marketWallet = 0x4BD25cfE6BDc1f20c371bdF2dFE5b0197eF37E6d;

    bool public isEnableTrading = false;

    constructor () {
        _name = "Shiba Lord";
        _symbol = "SHIBLORD";

        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[marketWallet]=true;
        _isExcludedFromFee[address(0)]=true;

        uint256 initSupply = 100*10**12*10**18;
        _mint(msg.sender, initSupply);
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }
   
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }
     
    function decimals() public view virtual override returns (uint8) {
        return _decimals;
    }
  
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }
    
    function balanceOf(address account) public view virtual  override returns (uint256) {
        return _balances[account];
    }

    function findOnePercent(uint256 value) internal pure  returns (uint256)  {
        uint256 onePercent = value * basePercent / base;
        return onePercent;
    }

    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }

    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }

    function changeMarketWallet(address _newMarketWallet) public onlyOwner {
        marketWallet=_newMarketWallet;
    }

    function isExcludedFromFee(address account) public view returns (bool) {
        return _isExcludedFromFee[account];
    }
   
    function transfer(address recipient, uint256 amount) public virtual  override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }
   
    function approve(address spender, uint256 amount) public virtual  override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }
    
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        _approve(sender, _msgSender(), currentAllowance - amount);

        return true;
    }
    
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        _approve(_msgSender(), spender, currentAllowance - subtractedValue);

        return true;
    }
    
    function enableTrading() external onlyOwner {
        require(!isEnableTrading, "Trading already enabled");
        isEnableTrading = true;
    }
    
    function _transfer(address sender, address recipient, uint256 amount) internal  returns (bool) {
        require(_balances[sender] >= amount, "ERC20: transfer amount exceeds balance");
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        require(isEnableTrading || _isExcludedFromFee[sender], "Trading is not enabled");

        if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient])
        {
            _balances[sender] -= amount;
            _balances[recipient] += amount;
            emit Transfer(sender, recipient, amount);
        }
        else
        {
            uint256 onePercent = findOnePercent(amount);
            uint256 toMarketWallet = onePercent * _marketFee;
       
            uint256 tokensToTransfer = amount - toMarketWallet;

            _balances[sender] -= tokensToTransfer;
            _balances[recipient] += tokensToTransfer;
            _balances[marketWallet] += toMarketWallet;
            
            _sendToMarket(sender, toMarketWallet);

            emit Transfer(sender, recipient, tokensToTransfer);
        }
        
        return true;
    }

    function _sendToMarket(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: market from the zero address");

        _beforeTokenTransfer(account,marketWallet, amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: market amount exceeds balance");
        _balances[account] = accountBalance - amount;

        emit Transfer(account, marketWallet, amount);
    }

    function _mint(address account, uint256 amount) internal  {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);
    }
    
    function _approve(address owner, address spender, uint256 amount) internal  {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}