// SPDX-License-Identifier: MIT

/**
*telegram:https://t.me/YuanXiaoDoge
*website:https://www.yuanxiaodoge.com/
*/

pragma solidity ^0.6.2;

/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {

function totalSupply() external view returns (uint256);


function balanceOf(address account) external view returns (uint256);


function transfer(address recipient, uint256 amount) external returns (bool);


function allowance(address owner, address spender) external view returns (uint256);


function approve(address spender, uint256 amount) external returns (bool);


function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);


event Transfer(address indexed from, address indexed to, uint256 value);


event Approval(address indexed owner, address indexed spender, uint256 value);
}

pragma solidity ^0.6.2;



interface IERC20Metadata is IERC20 {

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


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


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

pragma solidity ^0.6.2;

/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
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;
}
}

pragma solidity ^0.6.2;

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;
}

pragma solidity ^0.6.2;

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;
}

pragma solidity ^0.6.2;

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);
}

// pragma solidity >=0.6.2;

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;
}

pragma solidity ^0.6.2;

contract Ownable is Context {
address private _owner;

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

constructor () public {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}


function owner() public view returns (address) {
return _owner;
}


modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}


function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}

function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}

pragma solidity ^0.6.2;

library SafeMath {

function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a b;
require(c >= a, "SafeMath: addition overflow");

return c;
}


function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}


function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;

return c;
}


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;
}


function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by 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;
}

function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}


function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}

/*
MIT License

Copyright (c) 2018 requestnetwork
Copyright (c) 2018 Fragments, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

pragma solidity ^0.6.2;


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;
}

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;
}


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;
}


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;
}


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);
}
}

pragma solidity ^0.6.2;

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

pragma solidity ^0.6.2;

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();
}
}

pragma solidity ^0.6.2;


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;


constructor(string memory name_, string memory symbol_) public {
_name = name_;
_symbol = symbol_;
}


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 18;
}


function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}


function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[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);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}


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


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;
}

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);
}


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);
}


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);
}


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);
}


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

pragma solidity ^0.6.2;


interface DividendPayingTokenInterface {

function dividendOf(address _owner) external view returns(uint256);



function withdrawDividend() external;


event DividendsDistributed(
address indexed from,
uint256 weiAmount
);


event DividendWithdrawn(
address indexed to,
uint256 weiAmount
);
}

pragma solidity ^0.6.2;



interface DividendPayingTokenOptionalInterface {

function withdrawableDividendOf(address _owner) external view returns(uint256);


function withdrawnDividendOf(address _owner) external view returns(uint256);


function accumulativeDividendOf(address _owner) external view returns(uint256);
}


pragma solidity ^0.6.2;


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

address public immutable CAKE = address(0xbA2aE424d960c26247Dd6c32edC70B295c744C43);



uint256 constant internal magnitude = 2**128;

uint256 internal magnifiedDividendPerShare;


mapping(address => int256) internal magnifiedDividendCorrections;
mapping(address => uint256) internal withdrawnDividends;

uint256 public totalDividendsDistributed;

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

}


function distributeCAKEDividends(uint256 amount) public onlyOwner{
require(totalSupply() > 0);

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

totalDividendsDistributed = totalDividendsDistributed.add(amount);
}
}


function withdrawDividend() public virtual override {
_withdrawDividendOfUser(msg.sender);
}


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 = IERC20(CAKE).transfer(user, _withdrawableDividend);

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

return _withdrawableDividend;
}

return 0;
}



function dividendOf(address _owner) public view override returns(uint256) {
return withdrawableDividendOf(_owner);
}


function withdrawableDividendOf(address _owner) public view override returns(uint256) {
return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
}


function withdrawnDividendOf(address _owner) public view override returns(uint256) {
return withdrawnDividends[_owner];
}



function accumulativeDividendOf(address _owner) public view override returns(uint256) {
return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
}


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);
}


function _mint(address account, uint256 value) internal override {
super._mint(account, value);

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


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);
}
}
}

pragma solidity ^0.6.2;

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

IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;

bool private swapping;

YuanXiaoDogeDividendTracker public dividendTracker;

address public deadWallet = 0x000000000000000000000000000000000000dEaD;

address public immutable DOGE = address(0xbA2aE424d960c26247Dd6c32edC70B295c744C43);

uint256 public swapTokensAtAmount = 20000000 * (10**18);

mapping(address => bool) public _isBlacklisted;

uint256 public CAKERewardsFee = 10;
uint256 public liquidityFee = 1;
uint256 public marketingFee = 4;
uint256 public totalFees = CAKERewardsFee.add(liquidityFee).add(marketingFee);

address public _marketingWalletAddress = 0x8954C78E621dF9f3e315197EcbD0c826C3AAff2D;



uint256 public gasForProcessing = 300000;


mapping (address => bool) private _isExcludedFromFees;



mapping (address => bool) public automatedMarketMakerPairs;

event UpdateDividendTracker(address indexed newAddress, address indexed oldAddress);

event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress);

event ExcludeFromFees(address indexed account, bool isExcluded);
event ExcludeMultipleAccountsFromFees(address[] accounts, bool isExcluded);

event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

event LiquidityWalletUpdated(address indexed newLiquidityWallet, address indexed oldLiquidityWallet);

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() public ERC20("YuanXiaoDoge", "YuanXiaoDoge") {

dividendTracker = new YuanXiaoDogeDividendTracker();


IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);

address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());

uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = _uniswapV2Pair;

_setAutomatedMarketMakerPair(_uniswapV2Pair, true);


dividendTracker.excludeFromDividends(address(dividendTracker));
dividendTracker.excludeFromDividends(address(this));
dividendTracker.excludeFromDividends(owner());
dividendTracker.excludeFromDividends(deadWallet);
dividendTracker.excludeFromDividends(address(_uniswapV2Router));


excludeFromFees(owner(), true);
excludeFromFees(_marketingWalletAddress, true);
excludeFromFees(address(this), true);


_mint(owner(), 100000000000 * (10**18));
}

receive() external payable {

}

function updateDividendTracker(address newAddress) public onlyOwner {
require(newAddress != address(dividendTracker), "YuanXiaoDoge: The dividend tracker already has that address");

YuanXiaoDogeDividendTracker newDividendTracker = YuanXiaoDogeDividendTracker(payable(newAddress));

require(newDividendTracker.owner() == address(this), "YuanXiaoDoge: The new dividend tracker must be owned by the YuanXiaoDoge token contract");

newDividendTracker.excludeFromDividends(address(newDividendTracker));
newDividendTracker.excludeFromDividends(address(this));
newDividendTracker.excludeFromDividends(owner());
newDividendTracker.excludeFromDividends(address(uniswapV2Router));

emit UpdateDividendTracker(newAddress, address(dividendTracker));

dividendTracker = newDividendTracker;
}

function updateUniswapV2Router(address newAddress) public onlyOwner {
require(newAddress != address(uniswapV2Router), "YuanXiaoDoge: The router already has that address");
emit UpdateUniswapV2Router(newAddress, address(uniswapV2Router));
uniswapV2Router = IUniswapV2Router02(newAddress);
address _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())
.createPair(address(this), uniswapV2Router.WETH());
uniswapV2Pair = _uniswapV2Pair;
}

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

emit ExcludeFromFees(account, excluded);
}

function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner {
for(uint256 i = 0; i < accounts.length; i ) {
_isExcludedFromFees[accounts[i]] = excluded;
}

emit ExcludeMultipleAccountsFromFees(accounts, excluded);
}

function setMarketingWallet(address payable wallet) external onlyOwner{
_marketingWalletAddress = wallet;
}

function setCAKERewardsFee(uint256 value) external onlyOwner{
CAKERewardsFee = value;
totalFees = CAKERewardsFee.add(liquidityFee).add(marketingFee);
}

function setLiquiditFee(uint256 value) external onlyOwner{
liquidityFee = value;
totalFees = CAKERewardsFee.add(liquidityFee).add(marketingFee);
}

function setMarketingFee(uint256 value) external onlyOwner{
marketingFee = value;
totalFees = CAKERewardsFee.add(liquidityFee).add(marketingFee);

}


function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
require(pair != uniswapV2Pair, "YuanXiaoDoge: The PancakeSwap pair cannot be removed from automatedMarketMakerPairs");

_setAutomatedMarketMakerPair(pair, value);
}

function blacklistAddress(address account, bool value) external onlyOwner{
_isBlacklisted[account] = value;
}


function _setAutomatedMarketMakerPair(address pair, bool value) private {
require(automatedMarketMakerPairs[pair] != value, "YuanXiaoDoge: Automated market maker pair is already set to that value");
automatedMarketMakerPairs[pair] = value;

if(value) {
dividendTracker.excludeFromDividends(pair);
}

emit SetAutomatedMarketMakerPair(pair, value);
}


function updateGasForProcessing(uint256 newValue) public onlyOwner {
require(newValue >= 200000 && newValue <= 500000, "YuanXiaoDoge: gasForProcessing must be between 200,000 and 500,000");
require(newValue != gasForProcessing, "YuanXiaoDoge: 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 isExcludedFromFees(address account) public view returns(bool) {
return _isExcludedFromFees[account];
}

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 excludeFromDividends(address account) external onlyOwner{
dividendTracker.excludeFromDividends(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(msg.sender, false);
}

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

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


function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(!_isBlacklisted[from] && !_isBlacklisted[to], 'Blacklisted address');

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

uint256 contractTokenBalance = balanceOf(address(this));

bool canSwap = contractTokenBalance >= swapTokensAtAmount;

if( canSwap &&
!swapping &&
!automatedMarketMakerPairs[from] &&
from != owner() &&
to != owner()
) {
swapping = true;

uint256 marketingTokens = contractTokenBalance.mul(marketingFee).div(totalFees);
swapAndSendToFee(marketingTokens);

uint256 swapTokens = contractTokenBalance.mul(liquidityFee).div(totalFees);
swapAndLiquify(swapTokens);

uint256 sellTokens = balanceOf(address(this));
swapAndSendDividends(sellTokens);

swapping = false;
}


bool takeFee = !swapping;


if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}

if(takeFee) {
uint256 fees = amount.mul(totalFees).div(100);
if(automatedMarketMakerPairs[to]){
fees = amount.mul(1).div(100);
}
amount = amount.sub(fees);

super._transfer(from, address(this), fees);
}

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 swapAndSendToFee(uint256 tokens) private {

uint256 initialCAKEBalance = IERC20(DOGE).balanceOf(address(this));

swapTokensForCake(tokens);
uint256 newBalance = (IERC20(DOGE).balanceOf(address(this))).sub(initialCAKEBalance);
IERC20(DOGE).transfer(_marketingWalletAddress, newBalance);
}

function swapAndLiquify(uint256 tokens) private {

uint256 half = tokens.div(2);
uint256 otherHalf = tokens.sub(half);


uint256 initialBalance = address(this).balance;


swapTokensForEth(half);


uint256 newBalance = address(this).balance.sub(initialBalance);


addLiquidity(otherHalf, newBalance);

emit SwapAndLiquify(half, newBalance, otherHalf);
}


function swapTokensForEth(uint256 tokenAmount) private {



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

_approve(address(this), address(uniswapV2Router), tokenAmount);


uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);

}

function swapTokensForCake(uint256 tokenAmount) private {

address[] memory path = new address[](3);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
path[2] = DOGE;

_approve(address(this), address(uniswapV2Router), tokenAmount);

uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}

function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {


_approve(address(this), address(uniswapV2Router), tokenAmount);

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

}

function swapAndSendDividends(uint256 tokens) private{
swapTokensForCake(tokens);
uint256 dividends = IERC20(DOGE).balanceOf(address(this));
bool success = IERC20(DOGE).transfer(address(dividendTracker), dividends);

if (success) {
dividendTracker.distributeCAKEDividends(dividends);
emit SendDividends(tokens, dividends);
}
}
}

contract YuanXiaoDogeDividendTracker is Ownable, DividendPayingToken {
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 immutable 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() public DividendPayingToken("YuanXiaoDoge_Dividen_Tracker", "YuanXiaoDoge_Dividend_Tracker") {
claimWait = 3600;
minimumTokenBalanceForDividends = 5000000 * (10**18);
}

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

function withdrawDividend() public override {
require(false, "YuanXiaoDoge_Dividend_Tracker: withdrawDividend disabled. Use the 'claim' function on the main YuanXiaoDoge contract.");
}

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

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

emit ExcludeFromDividends(account);
}

function updateClaimWait(uint256 newClaimWait) external onlyOwner {
require(newClaimWait >= 3600 && newClaimWait <= 86400, "YuanXiaoDoge_Dividend_Tracker: claimWait must be updated to between 1 and 24 hours");
require(newClaimWait != claimWait, "YuanXiaoDoge_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;
}
}