pragma solidity 0.8.19;
// SPDX-License-Identifier: Unlicensed
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
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 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(
address account
) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(
address owner,
address spender
) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(
address spender,
uint256 amount
) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the upd allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
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"
);
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the upd allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the upd allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(
senderBalance >= amount,
"ERC20: transfer amount exceeds balance"
);
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
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);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes burning.
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
interface IDEXFactory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
function getPair(
address tokenA,
address tokenB
) external view returns (address pair);
}
interface IDEXRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
interface IDividendDistributor {
function setDistributionCriteria(
uint256 _minPeriod,
uint256 _minDistribution
) external;
function setShare(address shareholder, uint256 amount) external;
function deposit() external payable;
function process(uint256 gas) external;
}
contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;
address _token;
struct Share {
uint256 amount;
uint256 totalExcluded;
uint256 totalRealised;
}
address[] shareholders;
mapping(address => uint256) shareholderIndexes;
mapping(address => uint256) shareholderClaims;
mapping(address => Share) public shares;
uint256 public totalShares;
uint256 public totalDividends;
uint256 public totalDistributed;
uint256 public dividendsPerShare;
uint256 public dividendsPerShareAccuracyFactor = 10 ** 36;
uint256 public minPeriod = 60 minutes;
uint256 public minDistribution = 1 * (10 ** 15);
uint256 currentIndex;
bool initialized;
modifier initialization() {
require(!initialized);
_;
initialized = true;
}
modifier onlyToken() {
require(msg.sender == _token);
_;
}
constructor() {
_token = msg.sender;
}
function setDistributionCriteria(
uint256 newMinPeriod,
uint256 newMinDistribution
) external override onlyToken {
minPeriod = newMinPeriod;
minDistribution = newMinDistribution;
}
function setShare(
address shareholder,
uint256 amount
) external override onlyToken {
if (shares[shareholder].amount > 0) {
distributeDividend(shareholder);
}
if (amount > 0 && shares[shareholder].amount == 0) {
addShareholder(shareholder);
} else if (amount == 0 && shares[shareholder].amount > 0) {
removeShareholder(shareholder);
}
totalShares = totalShares.sub(shares[shareholder].amount).add(amount);
shares[shareholder].amount = amount;
shares[shareholder].totalExcluded = getCumulativeDividends(
shares[shareholder].amount
);
}
function deposit() external payable override onlyToken {
totalDividends = totalDividends.add(msg.value);
dividendsPerShare = dividendsPerShare.add(
dividendsPerShareAccuracyFactor.mul(msg.value).div(totalShares)
);
}
function process(uint256 gas) external override onlyToken {
uint256 shareholderCount = shareholders.length;
if (shareholderCount == 0) {
return;
}
uint256 iterations = 0;
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
while (gasUsed < gas && iterations < shareholderCount) {
if (currentIndex >= shareholderCount) {
currentIndex = 0;
}
if (shouldDistribute(shareholders[currentIndex])) {
distributeDividend(shareholders[currentIndex]);
}
gasUsed = gasUsed.add(gasLeft.sub(gasleft()));
gasLeft = gasleft();
currentIndex++;
iterations++;
}
}
function shouldDistribute(
address shareholder
) internal view returns (bool) {
return
shareholderClaims[shareholder] + minPeriod < block.timestamp &&
getUnpaidEarnings(shareholder) > minDistribution;
}
function distributeDividend(address shareholder) internal {
if (shares[shareholder].amount == 0) {
return;
}
uint256 amount = getUnpaidEarnings(shareholder);
if (amount > 0) {
totalDistributed = totalDistributed.add(amount);
// RewardToken.transfer(shareholder, amount);
payable(shareholder).transfer(amount);
shareholderClaims[shareholder] = block.timestamp;
shares[shareholder].totalRealised = shares[shareholder]
.totalRealised
.add(amount);
shares[shareholder].totalExcluded = getCumulativeDividends(
shares[shareholder].amount
);
}
}
function claimDividend(address shareholder) external onlyToken {
distributeDividend(shareholder);
}
function rescueDividends(uint256 amountPercentage) external onlyToken {
uint256 amountETH = address(this).balance;
payable(msg.sender).transfer((amountETH * amountPercentage) / 100);
}
function getUnpaidEarnings(
address shareholder
) public view returns (uint256) {
if (shares[shareholder].amount == 0) {
return 0;
}
uint256 shareholderTotalDividends = getCumulativeDividends(
shares[shareholder].amount
);
uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;
if (shareholderTotalDividends <= shareholderTotalExcluded) {
return 0;
}
return shareholderTotalDividends.sub(shareholderTotalExcluded);
}
function getCumulativeDividends(
uint256 share
) internal view returns (uint256) {
return
share.mul(dividendsPerShare).div(dividendsPerShareAccuracyFactor);
}
function addShareholder(address shareholder) internal {
shareholderIndexes[shareholder] = shareholders.length;
shareholders.push(shareholder);
}
function removeShareholder(address shareholder) internal {
shareholders[shareholderIndexes[shareholder]] = shareholders[
shareholders.length - 1
];
shareholderIndexes[
shareholders[shareholders.length - 1]
] = shareholderIndexes[shareholder];
shareholders.pop();
}
}
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 Returns the address of the current owner.
*/
function owner() public view virtual 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 {
_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);
}
}
contract NegativeTax is ERC20, Ownable {
using SafeMath for uint256;
address routerAddress = 0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24;
address public marketingWallet;
bool public tradingOpen = false;
mapping(address => bool) public isFeeExempt;
mapping(address => bool) public isDividendExempt;
mapping(address => bool) public isRefundExempt;
uint256 public marketingFee = 20;
uint256 public rewardsFee = 30;
uint256 public totalFee = 0;
uint256 public totalFeeIfSelling = 0;
bool public negativeTaxEnabled = true;
uint256 public negativeFee = 105;
IDEXRouter public router;
address public pair;
mapping(address => bool) public isPair;
DividendDistributor public dividendDistributor;
uint256 distributorGas = 750000;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
bool public swapAndLiquifyByLimitOnly = false;
uint256 public swapThreshold;
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
// events
event TradingOpened();
event DistributorSettingsChanged(uint256 gas);
event DividendsProcessed(uint256 gas);
event DividendsDeposited(uint256 amount);
event RouterChanged(address newRouter);
event PairsUpdated(address pair, bool status);
event FeeExemptStatusChanged(address holder, bool status);
event DividendExemptStatusChanged(address holder, bool status);
event FeeReceiverChanged(address newMarketingWallet);
event EtherRemoved(uint256 amount);
event NegativeTaxAmountChanged(uint256 newFee);
event NegativeTaxStatusChanged(bool status);
event FeeChanged(
uint256 newMarketingFee,
uint256 newRewardsFee,
uint256 newSellFee
);
event SwapBackSettingsChanged(
bool enableSwapBack,
uint256 newSwapBackLimit,
bool swapByLimitOnly
);
event DistributionCriteriaChanged(
uint256 newinPeriod,
uint256 newMinDistribution
);
constructor() ERC20("Negative Tax", "NETA") {
uint256 _totalSupply = 10_000_000 * (10 ** decimals());
swapThreshold = (_totalSupply * 1) / 2000;
marketingWallet = 0x6bBAfBe220a07F38A4093DF4D7C8510009495C3c;
router = IDEXRouter(routerAddress);
address pair_weth = IDEXFactory(router.factory()).createPair(
router.WETH(),
address(this)
);
pair = pair_weth;
isPair[pair] = true;
dividendDistributor = new DividendDistributor();
isFeeExempt[msg.sender] = true;
isFeeExempt[address(this)] = true;
isRefundExempt[pair_weth] = true;
isRefundExempt[routerAddress] = true;
isRefundExempt[msg.sender] = true;
isRefundExempt[address(this)] = true;
isDividendExempt[pair] = true;
isDividendExempt[pair_weth] = true;
isDividendExempt[msg.sender] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[address(0xdead)] = true;
isDividendExempt[address(0)] = true;
totalFee = marketingFee.add(rewardsFee);
totalFeeIfSelling = totalFee;
_mint(msg.sender, _totalSupply);
}
receive() external payable {}
function openTrading() public onlyOwner {
tradingOpen = true;
emit TradingOpened();
}
function changeFees(
uint256 newRewardFeeThou,
uint256 newmarketingFee,
uint256 extraSellFee
) external onlyOwner {
rewardsFee = newRewardFeeThou;
marketingFee = newmarketingFee;
totalFee = marketingFee.add(rewardsFee);
totalFeeIfSelling = totalFee + extraSellFee;
require(
totalFeeIfSelling <= 60,
"Max Fee is 6%"
);
emit FeeChanged(marketingFee, rewardsFee, totalFeeIfSelling);
}
function changeSwapBackSettings(
bool enableSwapBack,
uint256 newSwapBackLimit,
bool swapByLimitOnly
) external onlyOwner {
swapAndLiquifyEnabled = enableSwapBack;
swapThreshold = totalSupply() * newSwapBackLimit / 10000;
swapAndLiquifyByLimitOnly = swapByLimitOnly;
emit SwapBackSettingsChanged(
enableSwapBack,
newSwapBackLimit,
swapByLimitOnly
);
}
function changeDistributionCriteria(
uint256 newinPeriod,
uint256 newMinDistribution
) external onlyOwner {
dividendDistributor.setDistributionCriteria(
newinPeriod,
newMinDistribution
);
emit DistributionCriteriaChanged(newinPeriod, newMinDistribution);
}
function changeDistributorSettings(uint256 gas) external onlyOwner {
require(gas < 750000);
distributorGas = gas;
emit DistributorSettingsChanged(gas);
}
function processDividends(uint256 gas) external onlyOwner {
dividendDistributor.process(gas);
emit DividendsProcessed(gas);
}
function depositDividends() external payable {
dividendDistributor.deposit{value: msg.value}();
emit DividendsDeposited(msg.value);
}
function setRouterAddress(address newRouter) public onlyOwner {
IDEXRouter _uniswapV2Router = IDEXRouter(newRouter);
// Create a uniswap pair for this new token
IDEXFactory _uniswapV2Factory = IDEXFactory(_uniswapV2Router.factory());
address pairAddress = _uniswapV2Factory.getPair(
address(this),
_uniswapV2Router.WETH()
);
if (pairAddress == address(0)) {
pairAddress = _uniswapV2Factory.createPair(
address(this),
_uniswapV2Router.WETH()
);
}
isPair[pairAddress] = true;
isDividendExempt[pairAddress] = true;
router = _uniswapV2Router;
emit RouterChanged(newRouter);
}
function changePair(address _address, bool status) public onlyOwner {
require(_address != pair, "Token: Main pair cannot be disabled");
isPair[_address] = status;
changeIsDividendExempt(_address, status);
emit PairsUpdated(_address, status);
}
function changeIsFeeExempt(address holder, bool exempt) public onlyOwner {
isFeeExempt[holder] = exempt;
emit FeeExemptStatusChanged(holder, exempt);
}
function changeIsDividendExempt(
address holder,
bool exempt
) public onlyOwner {
if (isPair[holder]) {
exempt = true;
}
isDividendExempt[holder] = exempt;
if (exempt) {
dividendDistributor.setShare(holder, 0);
} else {
dividendDistributor.setShare(holder, balanceOf(holder));
}
emit DividendExemptStatusChanged(holder, exempt);
}
function addDapp(address target) public onlyOwner {
changeIsDividendExempt(target, true);
changeIsFeeExempt(target, true);
}
function changeFeeReceiver(address newMarketingWallet) external onlyOwner {
marketingWallet = newMarketingWallet;
emit FeeReceiverChanged(newMarketingWallet);
}
function removeERC20(
address tokenAddress,
uint256 tokens
) public onlyOwner returns (bool success) {
require(tokenAddress != address(this), "Cant remove the native token");
return IERC20(tokenAddress).transfer(msg.sender, tokens);
}
function removeEther(uint256 amountPercentage) external onlyOwner {
uint256 amountETH = address(this).balance;
payable(msg.sender).transfer((amountETH * amountPercentage) / 100);
emit EtherRemoved(amountETH);
}
function setNegativeFee(uint256 newNegativeFee) external onlyOwner {
require(
newNegativeFee >= 50 && newNegativeFee <= 120,
"Token: Negative fee must be between 5% and 12%"
);
negativeFee = newNegativeFee;
emit NegativeTaxAmountChanged(newNegativeFee);
}
function setNegativeFeeEnabled(bool enabled) external onlyOwner {
negativeTaxEnabled = enabled;
emit NegativeTaxStatusChanged(enabled);
}
function checkPendingDividends(
address account
) external view returns (uint256) {
return dividendDistributor.getUnpaidEarnings(account);
}
function claimDividend() external {
dividendDistributor.claimDividend(msg.sender);
}
function processFeeRefund(address recipient, uint256 amount) internal {
uint256 refund = amount.mul(negativeFee).div(1000);
if (refund > 0) {
_mint(recipient, refund);
}
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal override {
if (
sender != owner() &&
recipient != owner() &&
recipient != address(0) &&
recipient != address(0xdead)
) {
require(tradingOpen, "Trading not open yet");
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapThreshold;
if (
canSwap &&
swapAndLiquifyEnabled &&
!inSwapAndLiquify &&
isPair[recipient] &&
!isFeeExempt[sender] &&
!isFeeExempt[recipient]
) {
swapBack();
}
bool takeFee = !inSwapAndLiquify;
if (isFeeExempt[sender] || isFeeExempt[recipient]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if (takeFee) {
// on sell
if (isPair[recipient] && totalFeeIfSelling > 0) {
fees = amount.mul(totalFeeIfSelling).div(1000);
}
// on buy
else if (isPair[sender] && totalFee > 0) {
fees = amount.mul(totalFee).div(1000);
processFeeRefund(recipient, amount);
}
if (fees > 0) {
super._transfer(sender, address(this), fees);
}
amount -= fees;
}
// Dividend tracker
if (!isDividendExempt[sender]) {
try
dividendDistributor.setShare(
sender,
balanceOf(sender).sub(amount)
)
{} catch {}
}
if (!isDividendExempt[recipient]) {
try
dividendDistributor.setShare(
recipient,
balanceOf(recipient).add(amount)
)
{} catch {}
}
try dividendDistributor.process(distributorGas) {} catch {}
super._transfer(sender, recipient, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
// make the swap
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function swapBack() internal lockTheSwap {
uint256 tokensToLiquify = balanceOf(address(this));
if (tokensToLiquify == 0) {
return;
}
if (swapAndLiquifyByLimitOnly) {
if (tokensToLiquify < swapThreshold) {
tokensToLiquify = swapThreshold;
}
}
swapTokensForEth(tokensToLiquify);
uint256 amountETH = address(this).balance;
uint256 totalETHFee = totalFee;
bool tmpSuccess;
if (totalETHFee == 0) {
(tmpSuccess, ) = payable(marketingWallet).call{
value: address(this).balance,
gas: 30000
}("");
}
uint256 amountETHReflection = amountETH.mul(rewardsFee).div(
totalETHFee
);
uint256 amountETHMarketing = amountETH.mul(marketingFee).div(
totalETHFee
);
try
dividendDistributor.deposit{value: amountETHReflection}()
{} catch {}
(tmpSuccess, ) = payable(marketingWallet).call{
value: amountETHMarketing,
gas: 30000
}("");
tmpSuccess = false;
}
}
{
"compilationTarget": {
"NegativeTax.sol": "NegativeTax"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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