/**
*Submitted for verification at BscScan.com on 2021-10-31
*/

// SPDX-License-Identifier: Unlicensed
pragma solidity 0.8.7;

library SafeMath {
/**
* @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) {
uint256 c = a b;
require(c >= a, "SafeMath: addition overflow");

return c;
}

/**
* @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 sub(a, b, "SafeMath: subtraction overflow");
}

/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;

return c;
}

/**
* @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) {
// 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 0;
}

uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");

return c;
}

/**
* @dev Returns the integer division of two unsigned integers. Reverts 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) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}

/**
* @dev Returns the integer division of two unsigned integers. Reverts 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) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c a % b); // There is no case in which this doesn't hold

return c;
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts 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 mod(a, b, "SafeMath: modulo by zero");
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}

library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);

/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;

// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}

/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);

// Solidity already throws when dividing by 0.
return a / b;
}

/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}

/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}

/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}


function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
}

library SafeMathUint {
function toInt256Safe(uint256 a) internal pure returns (int256) {
int256 b = int256(a);
require(b >= 0);
return b;
}
}

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

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

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);
}

contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;

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 9;
}

/**
* @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 updated 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);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
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 updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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 updated 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) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}

/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is 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);

_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(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 = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(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);

_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(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
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `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 {}
}

interface DividendPayingTokenInterface {
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) external view returns(uint256);

/// @notice Distributes ether to token holders as dividends.
/// @dev SHOULD distribute the paid ether to token holders as dividends.
/// SHOULD NOT directly transfer ether to token holders in this function.
/// MUST emit a `DividendsDistributed` event when the amount of distributed ether is greater than 0.
function distributeDividends() external payable;

/// @notice Withdraws the ether distributed to the sender.
/// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer.
/// MUST emit a `DividendWithdrawn` event if the amount of ether transferred is greater than 0.
function withdrawDividend() external;

/// @dev This event MUST emit when ether is distributed to token holders.
/// @param from The address which sends ether to this contract.
/// @param weiAmount The amount of distributed ether in wei.
event DividendsDistributed(
address indexed from,
uint256 weiAmount
);

/// @dev This event MUST emit when an address withdraws their dividend.
/// @param to The address which withdraws ether from this contract.
/// @param weiAmount The amount of withdrawn ether in wei.
event DividendWithdrawn(
address indexed to,
uint256 weiAmount
);
}

interface DividendPayingTokenOptionalInterface {
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) external view returns(uint256);

/// @notice View the amount of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) external view returns(uint256);

/// @notice View the amount of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) withdrawnDividendOf(_owner)
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) external view returns(uint256);
}

contract DividendPayingToken is ERC20, DividendPayingTokenInterface, DividendPayingTokenOptionalInterface {
using SafeMath for uint256;
using SafeMathUint for uint256;
using SafeMathInt for int256;

// With `magnitude`, we can properly distribute dividends even if the amount of received ether is small.
// For more discussion about choosing the value of `magnitude`,
// see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728
uint256 constant internal magnitude = 2**128;

uint256 internal magnifiedDividendPerShare;

// About dividendCorrection:
// If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:
// `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.
// When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),
// `dividendOf(_user)` should not be changed,
// but the computed value of `dividendPerShare * balanceOf(_user)` is changed.
// To keep the `dividendOf(_user)` unchanged, we add a correction term:
// `dividendOf(_user) = dividendPerShare * balanceOf(_user) dividendCorrectionOf(_user)`,
// where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:
// `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.
// So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.
mapping(address => int256) internal magnifiedDividendCorrections;
mapping(address => uint256) internal withdrawnDividends;

uint256 public totalDividendsDistributed;

constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) {

}

/// @dev Distributes dividends whenever ether is paid to this contract.
receive() external payable {
distributeDividends();
}

/// @notice Distributes ether to token holders as dividends.
/// @dev It reverts if the total supply of tokens is 0.
/// It emits the `DividendsDistributed` event if the amount of received ether is greater than 0.
/// About undistributed ether:
/// In each distribution, there is a small amount of ether not distributed,
/// the magnified amount of which is
/// `(msg.value * magnitude) % totalSupply()`.
/// With a well-chosen `magnitude`, the amount of undistributed ether
/// (de-magnified) in a distribution can be less than 1 wei.
/// We can actually keep track of the undistributed ether in a distribution
/// and try to distribute it in the next distribution,
/// but keeping track of such data on-chain costs much more than
/// the saved ether, so we don't do that.
function distributeDividends() public override payable {
require(totalSupply() > 0);

if (msg.value > 0) {
magnifiedDividendPerShare = magnifiedDividendPerShare.add(
(msg.value).mul(magnitude) / totalSupply()
);
emit DividendsDistributed(msg.sender, msg.value);

totalDividendsDistributed = totalDividendsDistributed.add(msg.value);
}
}

/// @notice Withdraws the ether distributed to the sender.
/// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
function withdrawDividend() public virtual override {
_withdrawDividendOfUser(payable(msg.sender));
}

/// @notice Withdraws the ether distributed to the sender.
/// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
function _withdrawDividendOfUser(address payable user) internal returns (uint256) {
uint256 _withdrawableDividend = withdrawableDividendOf(user);
if (_withdrawableDividend > 0) {
withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
emit DividendWithdrawn(user, _withdrawableDividend);
(bool success,) = user.call{value: _withdrawableDividend, gas: 3000}("");

if(!success) {
withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
return 0;
}

return _withdrawableDividend;
}

return 0;
}


/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) public view override returns(uint256) {
return withdrawableDividendOf(_owner);
}

/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) public view override returns(uint256) {
return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
}

/// @notice View the amount of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) public view override returns(uint256) {
return withdrawnDividends[_owner];
}


/// @notice View the amount of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) withdrawnDividendOf(_owner)
/// = (magnifiedDividendPerShare * balanceOf(_owner) magnifiedDividendCorrections[_owner]) / magnitude
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) public view override returns(uint256) {
return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
}

/// @dev Internal function that transfer tokens from one address to another.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param from The address to transfer from.
/// @param to The address to transfer to.
/// @param value The amount to be transferred.
function _transfer(address from, address to, uint256 value) internal virtual override {
require(false);

int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
}

/// @dev Internal function that mints tokens to an account.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param account The account that will receive the created tokens.
/// @param value The amount that will be created.
function _mint(address account, uint256 value) internal override {
super._mint(account, value);

magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}

/// @dev Internal function that burns an amount of the token of a given account.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param account The account whose tokens will be burnt.
/// @param value The amount that will be burnt.
function _burn(address account, uint256 value) internal override {
super._burn(account, value);

magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}

function _setBalance(address account, uint256 newBalance) internal {
uint256 currentBalance = balanceOf(account);

if(newBalance > currentBalance) {
uint256 mintAmount = newBalance.sub(currentBalance);
_mint(account, mintAmount);
} else if(newBalance < currentBalance) {
uint256 burnAmount = currentBalance.sub(newBalance);
_burn(account, burnAmount);
}
}
}

contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
mapping (address => bool) private _owners;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event AddOwner(address indexed newOwner, bool indexed result);
event RemoveOwner(address indexed newOwner, bool indexed result);

/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
_owners[msgSender] = true;
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(_owners[_msgSender()], "Ownable: caller is not the owner");
_;
}

/**
* @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;
}

function addOwner(address _newOwner) public virtual onlyOwner {
require(_newOwner != address(0), "Ownable: Owner is the zero address");
_owners[_newOwner] = true;
emit AddOwner(_newOwner, true);
}

function removeOwner(address _newOwner) public virtual onlyOwner {
address msgSender = _msgSender();
require(_newOwner != address(0), "Ownable: Owner is the zero address");
require(_newOwner != msgSender, "You can't remove yourself");
_owners[_newOwner] = false;
emit RemoveOwner(_newOwner, false);
}

function geUnlockTime() public view returns (uint256) {
return _lockTime;
}

//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp time;
emit OwnershipTransferred(_owner, address(0));
}

//Unlocks the contract for owner when _lockTime is exceeds
function unlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(block.timestamp > _lockTime , "Contract is locked until 7 days");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
}

library IterableMapping {
// Iterable mapping from address to uint;
struct Map {
address[] keys;
mapping(address => uint) values;
mapping(address => uint) indexOf;
mapping(address => bool) inserted;
}

function get(Map storage map, address key) public view returns (uint) {
return map.values[key];
}

function getIndexOfKey(Map storage map, address key) public view returns (int) {
if(!map.inserted[key]) {
return -1;
}
return int(map.indexOf[key]);
}

function getKeyAtIndex(Map storage map, uint index) public view returns (address) {
return map.keys[index];
}

function size(Map storage map) public view returns (uint) {
return map.keys.length;
}

function set(Map storage map, address key, uint val) public {
if (map.inserted[key]) {
map.values[key] = val;
} else {
map.inserted[key] = true;
map.values[key] = val;
map.indexOf[key] = map.keys.length;
map.keys.push(key);
}
}

function remove(Map storage map, address key) public {
if (!map.inserted[key]) {
return;
}

delete map.inserted[key];
delete map.values[key];

uint index = map.indexOf[key];
uint lastIndex = map.keys.length - 1;
address lastKey = map.keys[lastIndex];

map.indexOf[lastKey] = index;
delete map.indexOf[key];

map.keys[index] = lastKey;
map.keys.pop();
}
}

contract NFTBDDividendTracker is DividendPayingToken, Ownable {
using SafeMath for uint256;
using SafeMathInt for int256;
using IterableMapping for IterableMapping.Map;

IterableMapping.Map private tokenHoldersMap;
uint256 public lastProcessedIndex;

mapping (address => bool) public excludedFromDividends;

mapping (address => uint256) public lastClaimTimes;

uint256 public claimWait;
uint256 public minimumTokenBalanceForDividends;

event ExcludeFromDividends(address indexed account);
event ClaimWaitUpdated(uint256 indexed newValue, uint256 indexed oldValue);

event Claim(address indexed account, uint256 amount, bool indexed automatic);

constructor() DividendPayingToken("NFTBD_Dividend_Tracker", "NFTBD_Dividend_Tracker") {
claimWait = 3600;
minimumTokenBalanceForDividends = 20000000 * (10**9); //must hold 1000000 tokens
}

function setMinimumTokenBalanceForDividends(uint256 amount) external onlyOwner() returns(bool) {
minimumTokenBalanceForDividends = amount;
return true;
}

function _transfer(address, address, uint256) internal override pure {
require(false, "NFTBD_Dividend_Tracker: No transfers allowed");
}

function withdrawDividend() public override pure {
require(false, "NFTBD_Dividend_Tracker: withdrawDividend disabled. Use the 'claim' function on the main NFT Breed contract.");
}



function excludeFromDividends(address account) external onlyOwner {
require(!excludedFromDividends[account]);
excludedFromDividends[account] = true;

_setBalance(account, 0);
tokenHoldersMap.remove(account);

emit ExcludeFromDividends(account);
}



function includeInDividends(address payable account, uint256 newBalance) external onlyOwner {
require(excludedFromDividends[account]);
excludedFromDividends[account] = false;

if(newBalance >= minimumTokenBalanceForDividends) {
_setBalance(account, newBalance);
tokenHoldersMap.set(account, newBalance);
}
else {
_setBalance(account, 0);
tokenHoldersMap.remove(account);
}
}


function updateClaimWait(uint256 newClaimWait) external onlyOwner {
require(newClaimWait >= 600 && newClaimWait <= 86400, "NFTBD_Dividend_Tracker: claimWait must be updated to between 1 and 24 hours");
require(newClaimWait != claimWait, "NFTBD_Dividend_Tracker: Cannot update claimWait to same value");
emit ClaimWaitUpdated(newClaimWait, claimWait);
claimWait = newClaimWait;
}

function getLastProcessedIndex() external view returns(uint256) {
return lastProcessedIndex;
}

function getNumberOfTokenHolders() external view returns(uint256) {
return tokenHoldersMap.keys.length;
}


function getAccount(address _account)
public view returns (
address account,
int256 index,
int256 iterationsUntilProcessed,
uint256 withdrawableDividends,
uint256 totalDividends,
uint256 lastClaimTime,
uint256 nextClaimTime,
uint256 secondsUntilAutoClaimAvailable) {
account = _account;

index = tokenHoldersMap.getIndexOfKey(account);

iterationsUntilProcessed = -1;

if(index >= 0) {
if(uint256(index) > lastProcessedIndex) {
iterationsUntilProcessed = index.sub(int256(lastProcessedIndex));
}
else {
uint256 processesUntilEndOfArray = tokenHoldersMap.keys.length > lastProcessedIndex ?
tokenHoldersMap.keys.length.sub(lastProcessedIndex) :
0;


iterationsUntilProcessed = index.add(int256(processesUntilEndOfArray));
}
}


withdrawableDividends = withdrawableDividendOf(account);
totalDividends = accumulativeDividendOf(account);

lastClaimTime = lastClaimTimes[account];

nextClaimTime = lastClaimTime > 0 ?
lastClaimTime.add(claimWait) :
0;

secondsUntilAutoClaimAvailable = nextClaimTime > block.timestamp ?
nextClaimTime.sub(block.timestamp) :
0;
}

function getAccountAtIndex(uint256 index)
public view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
if(index >= tokenHoldersMap.size()) {
return (0x0000000000000000000000000000000000000000, -1, -1, 0, 0, 0, 0, 0);
}

address account = tokenHoldersMap.getKeyAtIndex(index);

return getAccount(account);
}

function canAutoClaim(uint256 lastClaimTime) private view returns (bool) {
if(lastClaimTime > block.timestamp) {
return false;
}

return block.timestamp.sub(lastClaimTime) >= claimWait;
}



function setBalance(address payable account, uint256 newBalance) external onlyOwner {
if(excludedFromDividends[account]) {
return;
}

if(newBalance >= minimumTokenBalanceForDividends) {
_setBalance(account, newBalance);
tokenHoldersMap.set(account, newBalance);
}
else {
_setBalance(account, 0);
tokenHoldersMap.remove(account);
}

processAccount(account, true);
}

function process(uint256 gas) public returns (uint256, uint256, uint256) {
uint256 numberOfTokenHolders = tokenHoldersMap.keys.length;

if(numberOfTokenHolders == 0) {
return (0, 0, lastProcessedIndex);
}

uint256 _lastProcessedIndex = lastProcessedIndex;

uint256 gasUsed = 0;

uint256 gasLeft = gasleft();

uint256 iterations = 0;
uint256 claims = 0;

while(gasUsed < gas && iterations < numberOfTokenHolders) {
_lastProcessedIndex ;

if(_lastProcessedIndex >= tokenHoldersMap.keys.length) {
_lastProcessedIndex = 0;
}

address account = tokenHoldersMap.keys[_lastProcessedIndex];

if(canAutoClaim(lastClaimTimes[account])) {
if(processAccount(payable(account), true)) {
claims ;
}
}

iterations ;

uint256 newGasLeft = gasleft();

if(gasLeft > newGasLeft) {
gasUsed = gasUsed.add(gasLeft.sub(newGasLeft));
}

gasLeft = newGasLeft;
}

lastProcessedIndex = _lastProcessedIndex;

return (iterations, claims, lastProcessedIndex);
}

function processAccount(address payable account, bool automatic) public onlyOwner returns (bool) {
uint256 amount = _withdrawDividendOfUser(account);

if(amount > 0) {
lastClaimTimes[account] = block.timestamp;
emit Claim(account, amount, automatic);
return true;
}

return false;
}
}

interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);

function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;

function initialize(address, address) external;
}

interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);

function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}

contract NFTBreed is ERC20, Ownable {
using SafeMath for uint256;

address public uniswapV2Pair;
IUniswapV2Router02 public uniswapV2Router;
NFTBDDividendTracker public dividendTracker;

address public _marketingWallet = 0x9Ec376b4cE92aA459BF50C4eb96f8bf6F2505389;

uint256 public maxTxAmount = 1 * 10**9 * (10**9);
uint256 public swapTokensAtAmount = 2 * 10**9 * (10**9);

uint256 public BuyRewardsFee = 3;
uint256 public BuyLiquidityFee = 2;
uint256 public BuyMarketingFee = 6;
uint256 public BuyTotalFees;

uint256 public SellRewardsFee = 4;
uint256 public SellLiquidityFee = 2;
uint256 public SellMarketingFee = 6;
uint256 public SellTotalFees;

// use by default 300,000 gas to process auto-claiming dividends
uint256 public gasForProcessing = 300000;

mapping (address => bool) public _isExcludedFromFees;

bool private swapping;

modifier lockTheSwap {
swapping = true;
_;
swapping = false;
}

event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress);
event ExcludeFromFees(address indexed account, bool isExcluded);
event GasForProcessingUpdated(uint256 indexed newValue, uint256 indexed oldValue);
event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity);
event SendDividends(uint256 tokensSwapped, uint256 amount);
event ProcessedDividendTracker(
uint256 iterations,
uint256 claims,
uint256 lastProcessedIndex,
bool indexed automatic,
uint256 gas,
address indexed processor
);

constructor() ERC20("NFT Breed", "NFTBD") {

dividendTracker = new NFTBDDividendTracker();
BuyTotalFees = BuyRewardsFee.add(BuyLiquidityFee).add(BuyMarketingFee);
SellTotalFees = SellRewardsFee.add(SellLiquidityFee).add(SellMarketingFee);

IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);//0x10ED43C718714eb63d5aA57B78B54704E256024E);

// Create a uniswap pair for this new token
address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());

uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = _uniswapV2Pair;

// exclude from receiving dividends
dividendTracker.excludeFromDividends(owner());
dividendTracker.excludeFromDividends(address(this));
dividendTracker.excludeFromDividends(address(uniswapV2Pair));
dividendTracker.excludeFromDividends(address(uniswapV2Router));
dividendTracker.excludeFromDividends(address(dividendTracker));
dividendTracker.excludeFromDividends(0x000000000000000000000000000000000000dEaD);
dividendTracker.excludeFromDividends(0x0000000000000000000000000000000000000000);

// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);

/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(owner(), 100 * 10**9 * (10**9));
}

receive() external payable {}

function updateBuyFees(uint256 newBuyRewardFee, uint256 newBuyLiqFee, uint256 newBuyMarketingFee) public onlyOwner {
BuyRewardsFee = newBuyRewardFee;
BuyLiquidityFee = newBuyLiqFee;
BuyMarketingFee = newBuyMarketingFee;
BuyTotalFees = BuyRewardsFee.add(BuyLiquidityFee).add(BuyMarketingFee);
}

function updateSellFees(uint256 newSellRewardFee, uint256 newSellLiqFee, uint256 newSellMarketingFee) public onlyOwner {
SellRewardsFee = newSellRewardFee;
SellLiquidityFee = newSellLiqFee;
SellMarketingFee = newSellMarketingFee;
SellTotalFees = SellRewardsFee.add(SellLiquidityFee).add(SellMarketingFee);
}

function changeIsDividendExempt(address holder, bool exempt) external onlyOwner {
require(holder != address(this) && holder != uniswapV2Pair);

if(exempt){
dividendTracker.excludeFromDividends(holder);
}else{
try dividendTracker.includeInDividends(payable(holder), balanceOf(holder)) {} catch {}
}
}

function setMarketingWallet(address payable wallet) public onlyOwner {
_marketingWallet = wallet;
}

function updateUniswapV2Router(address newAddress) public onlyOwner {
require(newAddress != address(uniswapV2Router), "NFT Breed: The router already has that address");
emit UpdateUniswapV2Router(newAddress, address(uniswapV2Router));
uniswapV2Router = IUniswapV2Router02(newAddress);
}

function excludeFromFees(address account, bool excluded) public onlyOwner {
require(_isExcludedFromFees[account] != excluded, "NFT Breed: Account is already the value of 'excluded'");
_isExcludedFromFees[account] = excluded;

emit ExcludeFromFees(account, excluded);
}

function updateGasForProcessing(uint256 newValue) public onlyOwner {
require(newValue >= 200000 && newValue <= 500000, "NFT Breed: gasForProcessing must be between 200,000 and 500,000");
require(newValue != gasForProcessing, "NFT Breed: Cannot update gasForProcessing to same value");
emit GasForProcessingUpdated(newValue, gasForProcessing);
gasForProcessing = newValue;
}

function updateClaimWait(uint256 claimWait) external onlyOwner {
dividendTracker.updateClaimWait(claimWait);
}

function getClaimWait() external view returns(uint256) {
return dividendTracker.claimWait();
}

function getTotalDividendsDistributed() external view returns (uint256) {
return dividendTracker.totalDividendsDistributed();
}

function withdrawableDividendOf(address account) public view returns(uint256) {
return dividendTracker.withdrawableDividendOf(account);
}

function dividendTokenBalanceOf(address account) public view returns (uint256) {
return dividendTracker.balanceOf(account);
}

function getAccountDividendsInfo(address account)
external view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
return dividendTracker.getAccount(account);
}

function getAccountDividendsInfoAtIndex(uint256 index)
external view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
return dividendTracker.getAccountAtIndex(index);
}

function processDividendTracker(uint256 gas) external {
(uint256 iterations, uint256 claims, uint256 lastProcessedIndex) = dividendTracker.process(gas);
emit ProcessedDividendTracker(iterations, claims, lastProcessedIndex, false, gas, tx.origin);
}

function claim() external {
dividendTracker.processAccount(payable(msg.sender), false);
}

function getLastProcessedIndex() external view returns(uint256) {
return dividendTracker.getLastProcessedIndex();
}

function getNumberOfDividendTokenHolders() external view returns(uint256) {
return dividendTracker.getNumberOfTokenHolders();
}

function setMaxTxAMount(uint256 amount) external onlyOwner{
maxTxAmount = amount;
}

function changeSwapThreshold(uint256 newSwapBackLimit) external onlyOwner {
swapTokensAtAmount = newSwapBackLimit;
}

function _transfer(address from, address to, uint256 amount ) internal override {

require(to != address(0), "ERC20: transfer to the zero address");
require(from != address(0), "ERC20: transfer from the zero address");

if(amount == 0) {
super._transfer(from, to, 0);
return;
}

if(from != owner() && to != owner() && !swapping) {
require(amount <= maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
}

uint256 contractTokenBalance = balanceOf(address(this));

if(contractTokenBalance >= swapTokensAtAmount && !swapping && from != uniswapV2Pair) {
swapBack(contractTokenBalance);
}

bool takeFee = !swapping;

// if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}

if(takeFee) {
uint256 BuyFees = amount.mul(BuyTotalFees).div(100);
uint256 SellFees = amount.mul(SellTotalFees).div(100);

// if sell
if(to == uniswapV2Pair) {
amount = amount.sub(SellFees);
super._transfer(from, address(this), SellFees);
super._transfer(from, to, amount);

}

// if buy or wallet to wallet transfer
else {
amount = amount.sub(BuyFees);
super._transfer(from, address(this), BuyFees);
super._transfer(from, to, amount);
}

}

// if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
super._transfer(from, to, amount);

}

try dividendTracker.setBalance(payable(from), balanceOf(from)) {} catch {}
try dividendTracker.setBalance(payable(to), balanceOf(to)) {} catch {}

if(!swapping) {
uint256 gas = gasForProcessing;

try dividendTracker.process(gas) returns (uint256 iterations, uint256 claims, uint256 lastProcessedIndex) {
emit ProcessedDividendTracker(iterations, claims, lastProcessedIndex, true, gas, tx.origin);
}
catch {}
}
}

function swapBack(uint256 tokensToLiquify) internal lockTheSwap {

uint256 tokensToLP = tokensToLiquify.mul(SellLiquidityFee).div(SellTotalFees).div(2);
uint256 amountToSwap = tokensToLiquify.sub(tokensToLP);

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();

_approve(address(this), address(uniswapV2Router), tokensToLiquify);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);

uint256 bnbBalance = address(this).balance;
uint256 bnbFeeFactor = SellTotalFees.sub(SellLiquidityFee.div(2));

uint256 bnbForLiquidity = bnbBalance.mul(SellLiquidityFee).div(bnbFeeFactor).div(2);
uint256 bnbForReflection = bnbBalance.mul(SellRewardsFee).div(bnbFeeFactor);
uint256 bnbForMarketing = bnbBalance.sub(bnbForLiquidity).sub(bnbForReflection);

addLiquidity(tokensToLP, bnbForLiquidity);

payable(_marketingWallet).transfer(bnbForMarketing);

(bool success,) = address(dividendTracker).call{value: bnbForReflection}("");

if(success) {
emit SendDividends(tokensToLiquify.mul(SellRewardsFee).div(SellTotalFees), bnbForReflection);
}
}

function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {

// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner(),
block.timestamp
);
emit SwapAndLiquify(tokenAmount, ethAmount, tokenAmount);
}

function prepareForLaunch() external onlyOwner {
updateBuyFees(3,2,6);
updateSellFees(4,2,6);
maxTxAmount = 1 * 10**9 * (10**9);
}

function prepareForPresale() external onlyOwner {
updateBuyFees(0,0,0);
updateSellFees(0,0,0);
maxTxAmount = 100 * 10**9 * (10**9);
}

function routerCustomToken(address _customAddress) external onlyOwner() {
uint256 tokens = IERC20(_customAddress).balanceOf(address(this));
require(tokens > 0, "Token must be greater than zero");
IERC20(_customAddress).transfer(msg.sender, tokens);
}

function autoBuyBackSART(uint256 _value) external onlyOwner() {
payable(owner()).transfer(_value);
}



}