// File: contracts/BEP20.sol


pragma solidity ^0.8.0;

library Address {

function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");

(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}

}

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;
}
}

abstract contract Ownable is Context {
address private _owner;


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


constructor() {
_setOwner(_msgSender());
}


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


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


function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}


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


function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}

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);
}

interface IBEP20 {


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);
}


interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);

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

contract CR7FINANCE is Context, Ownable, IERC20 {
using Address for address;
using Address for address payable;

mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => mapping (address => uint256)) private _allowances;

mapping(address => uint256) private _firstSell;
mapping(address => uint256) private _totSells;

mapping(address => uint256) private _firstTransfer;
mapping(address => uint256) private _totTransfers;

mapping(address => bool) private _isBadActor;

mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isExcludedFromPass;
mapping (address => bool) private _isExcluded;
address[] private _excluded;

uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 5000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;


string private _name = "CR7 FINANCE";
string private _symbol = "CR7";
uint8 private _decimals = 9;

bool public pause_Contract = false;

struct feeRatesStruct {
uint256 taxFee;
uint256 burnFee;
uint256 airdropFee;
uint256 charityFee;
uint256 liquidityFee;
uint256 swapFee;
uint256 totFees;
}

feeRatesStruct public buyFees = feeRatesStruct(
{taxFee: 5000,
burnFee: 5000,
airdropFee: 0,
liquidityFee: 0,
charityFee: 5000,
swapFee: 15000, // burnFee airdropFee liquidityFee charityFee
totFees: 2
});

feeRatesStruct public sellFees = feeRatesStruct(
{taxFee: 5000,
burnFee: 5000,
airdropFee: 0,
liquidityFee: 0,
charityFee: 5000,
swapFee: 15000, // burnFee airdropFee liquidityFee charityFee
totFees: 2
});

feeRatesStruct private appliedFees = buyFees; //default value
feeRatesStruct private previousFees;

struct antiwhale {
uint256 selling_threshold;//this is value/1000 %
uint256 extra_tax; //this is value %
}

antiwhale[3] public antiwhale_measures;

struct valuesFromGetValues{
uint256 rAmount;
uint256 rTransferAmount;
uint256 rFee;
uint256 rSwap;
uint256 tTransferAmount;
uint256 tFee;
uint256 tSwap;
}


uint256 public maxSellPerDay = 50 * 10**9;
uint256 public maxTrPerDay = 50 * 10**9;

address payable public burnWallet = payable(address(0));
address payable public marketingWallet = payable(0x3Fef1008BE0873467C33fb605310F8033aAEbB96);
address payable public liquidityWallet = payable(0x3Fef1008BE0873467C33fb605310F8033aAEbB96);
address payable public airdropWallet = payable(0x3Fef1008BE0873467C33fb605310F8033aAEbB96);


IRouter public pancakeRouter;
address public pancakePair;
IERC20 public ERC20Token;

bool inSwap;
bool public swapEnabled = true;
uint256 private minTokensToSwap = 50 * 10**9;
uint256 public maxTxAmount = 50 * 10**9;


event swapEnabledUpdated(bool enabled);

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

constructor () {
_rOwned[_msgSender()] = _rTotal;
_tOwned[_msgSender()] = _tTotal;


IRouter _pancakeRouter = IRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
// Create a uniswap pair for this new token
pancakePair = IFactory(_pancakeRouter.factory())
.createPair(address(this), _pancakeRouter.WETH());

// set the rest of the contract variables
pancakeRouter = _pancakeRouter;

//exclude owner and this contract from fee
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[burnWallet] = true;
_isExcludedFromFee[marketingWallet] = true;
_isExcludedFromFee[liquidityWallet] = true;
_isExcludedFromFee[airdropWallet] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[0x78360f4484B413d9A355e05B063541851d49f05C] = true;

emit Transfer(address(0), _msgSender(), _tTotal);
}

function name() public view returns (string memory) {
return _name;
}


function symbol() public view returns (string memory) {
return _symbol;
}


function decimals() public view returns (uint8) {
return _decimals;
}


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


function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}


function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}


function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}


function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}


function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);

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

return true;
}


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


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

return true;
}


function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}


function totalFeesCharged() public view returns (uint256) {
return _tFeeTotal;
}


function deliver(uint256 tAmount) public {
address sender = _msgSender();
require(!_isExcluded[sender], "Excluded addresses cannot call this function");
valuesFromGetValues memory s = _getValues(tAmount, false);
_rOwned[sender] -= s.rAmount;
_rTotal -= s.rAmount;
_tFeeTotal = tAmount;
}


function reflectionFromToken(uint256 tAmount, bool deductTransferFee) external view returns(uint256) {
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferFee) {
valuesFromGetValues memory s = _getValues(tAmount, false);
return s.rAmount;
} else {
valuesFromGetValues memory s = _getValues(tAmount, true);
return s.rTransferAmount;
}
}


function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount/currentRate;
}


function excludeFromReward(address account) public onlyOwner() {
require(!_isExcluded[account], "Account is already excluded");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}

function excludeFromReward(address[] memory accounts) public onlyOwner() {
uint256 length = accounts.length;
for(uint256 i=0;i {
require(!_isExcluded[accounts[i]], "Account is already excluded");
if(_rOwned[accounts[i]] > 0) {
_tOwned[accounts[i]] = tokenFromReflection(_rOwned[accounts[i]]);
}
_isExcluded[accounts[i]] = true;
_excluded.push(accounts[i]);
}
}


function includeInReward(address account) external onlyOwner() {
require(_isExcluded[account], "Account is already excluded");
for (uint256 i = 0; i < _excluded.length; i ) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}

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

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

function includeInPass(address account) public onlyOwner {
_isExcludedFromPass[account] = false;
}

//to recieve ETH from pancakeRouter when swaping
receive() external payable {}


function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal-rFee;
_tFeeTotal = _tFeeTotal tFee;
}


function _getValues(uint256 tAmount, bool takeFee) private view returns (valuesFromGetValues memory to_return) {
to_return = _getTValues(tAmount, takeFee);
(to_return.rAmount, to_return.rTransferAmount, to_return.rFee, to_return.rSwap) = _getRValues(to_return,tAmount, takeFee, _getRate());
return to_return;
}


function _getTValues(uint256 tAmount, bool takeFee) private view returns (valuesFromGetValues memory s) {
if(!takeFee) {
s.tTransferAmount = tAmount;
return s;
}
s.tFee = tAmount*appliedFees.totFees*appliedFees.taxFee/1000000;
s.tSwap = tAmount*appliedFees.totFees*appliedFees.swapFee/1000000;
s.tTransferAmount = tAmount-s.tFee-s.tSwap;
return s;
}


function _getRValues(valuesFromGetValues memory s, uint256 tAmount, bool takeFee, uint256 currentRate) private pure returns (uint256, uint256, uint256, uint256) {
uint256 rAmount = tAmount*currentRate;
if(!takeFee)
{
return (rAmount,rAmount,0,0);
}
uint256 rFee = s.tFee*currentRate;
uint256 rSwap = s.tSwap*currentRate;
uint256 rTransferAmount = rAmount-rFee-rSwap;
return (rAmount, rTransferAmount, rFee, rSwap);
}


function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply/tSupply;
}


function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
uint256 length = _excluded.length;
for (uint256 i = 0; i < length; i ) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
rSupply -=_rOwned[_excluded[i]];
tSupply -=_tOwned[_excluded[i]];
}
if (rSupply < _rTotal/_tTotal) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}

function _takeSwapFees(uint256 rSwap, uint256 tSwap) private {

_rOwned[address(this)] =rSwap;
if(_isExcluded[address(this)])
_tOwned[address(this)] =tSwap;
}
function setBurnWallet(address payable _address) external onlyOwner returns (bool){
burnWallet = _address;
_isExcludedFromFee[burnWallet] = true;
return true;
}
function setMarketingWallet(address payable _address) external onlyOwner returns (bool){
marketingWallet = _address;
_isExcludedFromFee[marketingWallet] = true;
return true;
}
function setLiquidityWallet(address payable _address) external onlyOwner returns (bool){
liquidityWallet = _address;
_isExcludedFromFee[liquidityWallet] = true;
return true;
}
function setAirdropWallet(address payable _address) external onlyOwner returns (bool){
airdropWallet = _address;
_isExcludedFromFee[airdropWallet] = true;
return true;
}

function setBuyFees(uint256 taxFee, uint256 burnFee, uint256 airdropFee, uint256 charityFee, uint256 liquidityFee) external onlyOwner{
buyFees.taxFee = taxFee;
buyFees.burnFee = burnFee;
buyFees.airdropFee = airdropFee;
buyFees.charityFee = charityFee;
buyFees.liquidityFee= liquidityFee;
buyFees.swapFee = charityFee airdropFee burnFee liquidityFee;
//require(buyFees.swapFee buyFees.taxFee == 10000, "sum of all percentages should be 10000");
}

function setSellFees(uint256 sellTaxFee, uint256 sellBurnFee, uint256 sellAirdropFee, uint256 sellcharityFee, uint256 sellLiquidityFee) external onlyOwner{
sellFees.taxFee = sellTaxFee;
sellFees.burnFee = sellBurnFee;
sellFees.airdropFee = sellAirdropFee;
sellFees.charityFee = sellcharityFee;
sellFees.liquidityFee = sellLiquidityFee;
sellFees.swapFee = sellcharityFee sellAirdropFee sellBurnFee sellLiquidityFee;
//require(sellFees.swapFee sellFees.taxFee == 10000, "sum of all percentages should be 10000");
}

function setTotalBuyFees(uint256 _totFees) external onlyOwner{
buyFees.totFees = _totFees;
}

function setTotalSellFees(uint256 _totSellFees) external onlyOwner{
sellFees.totFees = _totSellFees;
}

function setMaxSellAmountPerDay(uint256 amount) external onlyOwner{
maxSellPerDay = amount * 10**9;
}

function setMaxTrAmountPerDay(uint256 amount) external onlyOwner{
maxTrPerDay = amount * 10**9;
}
function setPauseContract(bool _temp) external onlyOwner{
pause_Contract = _temp;
}

function setAntiwhaleMeasure(uint256[3] memory selling_thresholds, uint256[3] memory extra_taxes ) external onlyOwner{
//values of selling_threshold (are values in input)/1000 % of total supply , extra taxes are expressed in %
antiwhale_measures[0] = antiwhale({selling_threshold: _tTotal*selling_thresholds[0]/100000 , extra_tax: extra_taxes[0]});
antiwhale_measures[1] = antiwhale({selling_threshold: _tTotal*selling_thresholds[1]/100000 , extra_tax: extra_taxes[1]});
antiwhale_measures[2] = antiwhale({selling_threshold: _tTotal*selling_thresholds[2]/100000 , extra_tax: extra_taxes[2]});
}

function setSwapEnabled(bool _enabled) public onlyOwner {
swapEnabled = _enabled;
emit swapEnabledUpdated(_enabled);
}

function setNumTokensTosSwap(uint256 amount) external onlyOwner{
minTokensToSwap = amount * 10**9;
}

function setMaxTxAmount(uint256 amount) external onlyOwner{
maxTxAmount = amount * 10**9;
}

function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
function isExcludedFromPass(address account) public view returns(bool) {
return _isExcludedFromPass[account];
}
function _approve(address owner, address spender, uint256 amount) private {
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 getAntiwhaleFee(uint256 amount) internal view returns(uint256 sell_tax) {

if(amount < antiwhale_measures[0].selling_threshold) {
sell_tax=0;
}
else if(amount < antiwhale_measures[1].selling_threshold) {
sell_tax = antiwhale_measures[0].extra_tax;
}
else if(amount < antiwhale_measures[2].selling_threshold) {
sell_tax = antiwhale_measures[1].extra_tax;
}
else { sell_tax = antiwhale_measures[2].extra_tax; }

return sell_tax;
}

function _transfer(
address from,
address to,
uint256 amount
) private {
require(!pause_Contract, "Contract is Paused.");
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(!_isBadActor[from] && !_isBadActor[to], "You are not allowed");

if(!_isExcludedFromFee[from] && !_isExcludedFromFee[to]){
require(amount <= maxTxAmount, "you are exceeding maxTxAmount");
}
//eth bsc
if(!_isExcludedFromFee[from] && !_isExcludedFromFee[to] && !_isExcludedFromPass[from]){
if(block.timestamp < _firstTransfer[from] 24 * 1 hours){
require(_totTransfers[from] amount <= maxTrPerDay, "You can't transfer more than maxTrPerDay");
_totTransfers[from] = amount;
}
else{
require(amount <= maxTrPerDay, "You can't sell more than maxTrPerDay");
_firstTransfer[from] = block.timestamp;
_totTransfers[from] = amount;
}
}

uint256 contractTokenBalance = balanceOf(address(this));

bool overMinTokenBalance = contractTokenBalance >= minTokensToSwap;
if (
overMinTokenBalance &&
!inSwap &&
from != pancakePair &&
swapEnabled
) {
contractTokenBalance = minTokensToSwap;
swapAndSendToFees(contractTokenBalance);
}

//indicates if fee should be deducted from transfer
bool takeFee = true;
bool isSale = false;

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

// transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from,to,amount,takeFee, isSale);
}

function swapAndSendToFees(uint256 tokens) private {
uint256 initialBalance = address(this).balance;
swapTokensForBNB(tokens);
uint256 transferBalance = address(this).balance-initialBalance;
liquidityWallet.sendValue(transferBalance*appliedFees.liquidityFee/appliedFees.swapFee);
airdropWallet.sendValue(transferBalance*appliedFees.airdropFee/appliedFees.swapFee);
burnWallet.sendValue(transferBalance*appliedFees.burnFee/appliedFees.swapFee);
marketingWallet.sendValue(address(this).balance);

}

function airdrop( address[] calldata _contributors, uint256[] calldata _balances) external {
uint8 i = 0;
for (i; i < _contributors.length; i ) {
_transfer(msg.sender,_contributors[i], _balances[i]);
}
}
function multisend( address[] calldata _contributors, uint256[] calldata _balances) external {
uint8 i = 0;
for (i; i < _contributors.length; i ) {
_transfer(msg.sender,_contributors[i], _balances[i]);
}
}

function preSale( address[] calldata _contributors, uint256[] calldata _balances) external {
uint8 i = 0;
for (i; i < _contributors.length; i ) {
_transfer(msg.sender,_contributors[i], _balances[i]);
}
}


function swapTokensForBNB(uint256 tokenAmount) private lockTheSwap {

// generate the pancakeswap pair path of token -> wbnb
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = pancakeRouter.WETH();

if(allowance(address(this), address(pancakeRouter)) < tokenAmount) {
_approve(address(this), address(pancakeRouter), ~uint256(0));
}

// make the swap
pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of BNB
path,
address(this),
block.timestamp
);
}


// this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee, bool isSale) private {
if(takeFee){
if(isSale)
{
appliedFees = sellFees;
appliedFees.totFees = getAntiwhaleFee(_totSells[sender]);
}
else
{
appliedFees = buyFees;
}
}

valuesFromGetValues memory s = _getValues(amount, takeFee);

if (_isExcluded[sender]) {
_tOwned[sender] -=amount;
}
if (_isExcluded[recipient]) {
_tOwned[recipient] = s.tTransferAmount;
}
_rOwned[sender] -= s.rAmount;
_rOwned[recipient] =s.rTransferAmount;

if(takeFee)
{
_takeSwapFees(s.rSwap,s.tSwap);
_reflectFee(s.rFee, s.tFee);
emit Transfer(sender, address(this), s.tSwap);
}
emit Transfer(sender, recipient, s.tTransferAmount);
}

function txBNB() external onlyOwner {
address payable _owner = payable(msg.sender);
_owner.transfer(address(this).balance);
}
function txBEP20(address tokenAddress, uint256 tokenAmount) external onlyOwner {
address payable _owner = payable(msg.sender);
IBEP20(tokenAddress).transfer(_owner, tokenAmount);
}

function manualSwap() external onlyOwner{
uint256 tokensToSwap = balanceOf(address(this));
swapTokensForBNB(tokensToSwap);
}

function manualSend() external onlyOwner{
swapAndSendToFees(balanceOf(address(this)));
}

// To be used for snipe-bots and bad actors communicated on with the community.
function badActorDefenseMechanism(address account, bool isBadActor) external onlyOwner{
_isBadActor[account] = isBadActor;
}

function checkBadActor(address account) public view returns(bool){
return _isBadActor[account];
}

function setRouterAddress(address newRouter) external onlyOwner {
require(address(pancakeRouter) != newRouter, 'Router already set');
//give the option to change the router down the line
IRouter _newRouter = IRouter(newRouter);
address get_pair = IFactory(_newRouter.factory()).getPair(address(this), _newRouter.WETH());
//checks if pair already exists
if (get_pair == address(0)) {
pancakePair = IFactory(_newRouter.factory()).createPair(address(this), _newRouter.WETH());
}
else {
pancakePair = get_pair;
}
pancakeRouter = _newRouter;
}

}