/*THE GUARDIAN MODE

The Guardian Mode function was conceptualised and quantified by contract the owner.
It is a special code embedded in the smart contract of the token designed to protect
investors and the liquidity pool from extreme manipulation. The functions default is off, the developer
activates it after he consults his chart analyst and senior team members when suspicious activities
have been detected. Once activated, the mode initiates a 24 hours timer which imposes a 3 stage
sell function on ALL WALLETS holding Planet 3 Coins including the developer himself and all the
project wallets. NO investor or holder is excluded from the function once activated.

The first stage sell permits a 50% maximum single sell of all holdings. The second stage sell
is permitted 6 hours after the first sell at another 50% maximum single sell of remaining holdings.
The third and final stage sell is permitted 4 hours after the second sell of which all of the remaning
holdings can be sold.
The time restrictions of six and four hours means that the restricted period after the first initial
sell of 50% maximum is a total of ten hours minimum. Therefore, the Guardian Mode allows holders to exit
the project within the same day if they choose to.

Note: The function has been coded to automatically switches off after 24 hours, the developer does not
have access to an off switch. Investors will be informed when the mode is activated, the team will
make an announcement.*/




pragma solidity ^0.8.9;
pragma experimental ABIEncoderV2;

// SPDX-License-Identifier:MIT

// BEP20 token standard interface
interface IBEP20 {
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
);
}

// Dex Factory contract interface
interface IDexFactory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}

// Dex Router02 contract interface
interface IDexRouter {
function factory() external pure returns (address);

function WETH() external pure returns (address);

function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);

function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}

/**
* @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) {
return msg.data;
}
}

/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an _account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner _account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;

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

/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_setOwner(_msgSender());
}

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

/**
* @dev Throws if called by any _account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}

/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}

/**
* @dev Transfers ownership of the contract to a new _account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_setOwner(newOwner);
}

/**
* @dev set the owner for the first time.
* Can only be called by the contract or deployer.
*/
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}

/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.

// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;

uint256 private _status;

constructor() {
_status = _NOT_ENTERED;
}

/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

// Any calls to nonReentrant after this point will fail
_status = _ENTERED;

_;

// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}

// Main token Contract

contract TokenContract is Context, IBEP20, Ownable, ReentrancyGuard {
using SafeMath for uint256;

// all private variables and functions are only for contract use
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcludedFromReward;
mapping(address => bool) private _isExcludedFromMaxHoldLimit;
mapping(address => uint256) private _nextSellTime;
mapping(address => uint8) private _sellCount;

uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 30 * 1e12 * 1e9; // 30 trillion total supply
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;

string private _name = "Planet 3 Coin"; // token name
string private _symbol = "P3C"; // token ticker
uint8 private _decimals = 9; // token decimals

IDexRouter public dexRouter; // Dex router address
address public dexPair; // LP token address
address payable public awardPool; // award pool address
address payable public earthBank; // earth bank wallet address
address public burnAddress = 0x000000000000000000000000000000000000dEaD; // dead address

uint256 public maxHoldingAmount = _tTotal.div(100); // maximum Holding limit is 1% percent of total supply
uint256 public minTokenToSwap = 1 * 1e6 * 1e9; // 1M amount will trigger the swap and add liquidity
uint256 public maxFee = 150; // 15% max fees limit per transaction
uint256 public launchTime; // will be set only once at the time of launch
uint256 public maxSellLimitStartTime; // capture max selling limit start time
uint256 public maxSellLimitDuration = 24 hours; // max selling limit switched off automatically after 24 hours
uint256 private excludedTSupply; // for contract use
uint256 private excludedRSupply; // for contract use

bool public swapAndLiquifyEnabled; // should be true to turn on to liquidate the pool
bool public reflectionFees = true; // should be false to charge fee
bool public tradingOpen; //once switched on, can never be switched off.
bool public isMaxHoldLimitValid = true; // max Holding Limit is valid if it's true

// buy tax fee
uint256 public redistributionFeeOnBuying = 20; // 2% will be distributed among holder as token divideneds
uint256 public liquidityFeeOnBuying = 40; // 4% will be added to the liquidity pool
uint256 public awardPoolFeeOnBuying = 40; // 4% will go to the award pool address
uint256 public earthBankFeeOnBuying = 20; // 2% will go to the earth bank wallet address

// sell tax fee
uint256 public redistributionFeeOnSelling = 30; // 3% will be distributed among holder as token divideneds
uint256 public liquidityFeeOnSelling = 40; // 4% will be added to the liquidity pool
uint256 public awardPoolFeeOnSelling = 40; // 4% will go to the award pool address
uint256 public earthBankFeeOnSelling = 30; // 3% will go to the earth bank wallet address

// normal tax fee
uint256 public redistributionFee = 0; // 0% will be distributed among holder as token divideneds
uint256 public liquidityFee = 20; // 2% will be added to the liquidity pool
uint256 public awardPoolFee = 20; // 2% will go to the award pool address
uint256 public earthBankFee = 10; // 1% will go to the earth bank wallet address

// for smart contract use
uint256 private _currentRedistributionFee;
uint256 private _currentLiquidityFee;
uint256 private _currentAwardPoolFee;
uint256 private _currentEarthBankFee;

uint256 private _accumulatedLiquidity;
uint256 private _accumulatedAwardPool;
uint256 private _accumulatedEarthBank;

//Events for blockchain
event SwapAndLiquifyEnabledUpdated(bool enabled);

event SwapAndLiquify(
uint256 tokensSwapped,
uint256 bnbReceived,
uint256 tokensIntoLiqudity
);

// constructor for initializing the contract
constructor(address payable _awardPool, address payable _earthBank)
{
_rOwned[owner()] = _rTotal;
awardPool = _awardPool;
earthBank = _earthBank;

IDexRouter _dexRouter = IDexRouter(
0x10ED43C718714eb63d5aA57B78B54704E256024E
);
// Create a Dex pair for this new token
dexPair = IDexFactory(_dexRouter.factory()).createPair(
address(this),
_dexRouter.WETH()
);

// set the rest of the contract variables
dexRouter = _dexRouter;

//exclude owner and this contract from fee
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;

// exclude addresses from max tx
_isExcludedFromMaxHoldLimit[owner()] = true;
_isExcludedFromMaxHoldLimit[address(this)] = true;
_isExcludedFromMaxHoldLimit[dexPair] = true;
_isExcludedFromMaxHoldLimit[burnAddress] = true;

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

// token standards by Blockchain

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 (_isExcludedFromReward[_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);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"BEP20: 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,
"BEP20: decreased allowance below zero"
)
);
return true;
}

// public view able functions

// to check wether the address is excluded from reward or not
function isExcludedFromReward(address _account) public view returns (bool) {
return _isExcludedFromReward[_account];
}

// to check wether the address is excluded from fee or not
function isExcludedFromFee(address _account) public view returns (bool) {
return _isExcludedFromFee[_account];
}

// to check wether the address is excluded from max Holding or not
function isExcludedFromMaxHoldLimit(address _account)
public
view
returns (bool)
{
return _isExcludedFromMaxHoldLimit[_account];
}

// to check how much tokens get redistributed among holders till now
function totalHolderDistribution() public view returns (uint256) {
return _tFeeTotal;
}

// For manual distribution to the holders
function deliver(uint256 tAmount) public {
address sender = _msgSender();
require(
!_isExcludedFromReward[sender],
"BEP20: Excluded addresses cannot call this function"
);
uint256 rAmount = tAmount.mul(_getRate());
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rTotal = _rTotal.sub(rAmount);
_tFeeTotal = _tFeeTotal.add(tAmount);
}

function reflectionFromToken(uint256 tAmount, bool deductTransferFee)
public
view
returns (uint256)
{
require(tAmount <= _tTotal, "BEP20: Amount must be less than supply");
if (!deductTransferFee) {
uint256 rAmount = tAmount.mul(_getRate());
return rAmount;
} else {
uint256 rAmount = tAmount.mul(_getRate());
uint256 rTransferAmount = rAmount.sub(
totalFeePerTx(tAmount).mul(_getRate())
);
return rTransferAmount;
}
}

function tokenFromReflection(uint256 rAmount)
public
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"BEP20: Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}

// setter functions for owner

// to include any address in reward
function includeInReward(address _account) external onlyOwner {
require(
_isExcludedFromReward[_account],
"BEP20: _Account is already excluded"
);
excludedTSupply = excludedTSupply.sub(_tOwned[_account]);
excludedRSupply = excludedRSupply.sub(_rOwned[_account]);
_rOwned[_account] = _tOwned[_account].mul(_getRate());
_tOwned[_account] = 0;
_isExcludedFromReward[_account] = false;
}

//to include any address in reward
function excludeFromReward(address _account) public onlyOwner {
require(
!_isExcludedFromReward[_account],
"BEP20: _Account is already excluded"
);
if (_rOwned[_account] > 0) {
_tOwned[_account] = tokenFromReflection(_rOwned[_account]);
}
_isExcludedFromReward[_account] = true;
excludedTSupply = excludedTSupply.add(_tOwned[_account]);
excludedRSupply = excludedRSupply.add(_rOwned[_account]);
}

//to include or exludde any address from fee
function includeOrExcludeFromFee(address _account, bool _value)
public
onlyOwner
{
_isExcludedFromFee[_account] = _value;
}

//to include or exludde any address from max hold limit
function includeOrExcludeFromMaxHoldLimit(address _address, bool value)
public
onlyOwner
{
_isExcludedFromMaxHoldLimit[_address] = value;
}

//only owner can change MaxHoldingAmount
function setMaxHoldingAmount(uint256 _amount) public onlyOwner {
maxHoldingAmount = _amount;
}

//only owner can change MinTokenToSwap
function setMinTokenToSwap(uint256 _amount) public onlyOwner {
minTokenToSwap = _amount;
}

//only owner can change max sell limit duration
function setMaxSellLimitDuration(uint256 _duration) public onlyOwner {
maxSellLimitDuration = _duration;
}

//only owner can change BuyFeePercentages any time after deployment
function setBuyFeePercent(
uint256 _redistributionFee,
uint256 _liquidityFee,
uint256 _awardPoolFee,
uint256 _earthBankFee
) external onlyOwner {
redistributionFeeOnBuying = _redistributionFee;
liquidityFeeOnBuying = _liquidityFee;
awardPoolFeeOnBuying = _awardPoolFee;
earthBankFeeOnBuying = _earthBankFee;
require(
redistributionFeeOnBuying
.add(liquidityFeeOnBuying)
.add(awardPoolFeeOnBuying)
.add(earthBankFeeOnBuying) <= maxFee,
"BEP20: Can not be greater than max fee"
);
}

//only owner can change SellFeePercentages any time after deployment
function setSellFeePercent(
uint256 _redistributionFee,
uint256 _liquidityFee,
uint256 _awardPoolFee,
uint256 _earthBankFee
) external onlyOwner {
redistributionFeeOnSelling = _redistributionFee;
liquidityFeeOnSelling = _liquidityFee;
awardPoolFeeOnSelling = _awardPoolFee;
earthBankFeeOnSelling = _earthBankFee;
require(
redistributionFeeOnSelling
.add(liquidityFeeOnSelling)
.add(awardPoolFeeOnSelling)
.add(earthBankFeeOnSelling) <= maxFee,
"BEP20: Can not be greater than max fee"
);
}

//only owner can change NormalFeePercent any time after deployment
function setNormalFeePercent(
uint256 _redistributionFee,
uint256 _liquidityFee,
uint256 _awardPoolFee,
uint256 _earthBankFee
) external onlyOwner {
redistributionFee = _redistributionFee;
liquidityFee = _liquidityFee;
awardPoolFee = _awardPoolFee;
earthBankFee = _earthBankFee;
require(
redistributionFee.add(liquidityFee).add(awardPoolFee).add(
earthBankFee
) <= maxFee,
"BEP20: Can not be greater than max fee"
);
}

//only owner can change state of swapping, he can turn it in to true or false any time after deployment
function enableOrDisableSwapAndLiquify(bool _state) public onlyOwner {
swapAndLiquifyEnabled = _state;
emit SwapAndLiquifyEnabledUpdated(_state);
}

//To enable or disable all fees when set it to true fees will be disabled
function enableOrDisableFees(bool _state) external onlyOwner {
reflectionFees = _state;
}

//by default maxholding is true to disable set it to false address can hold more than limit
function enableOrDisableMaxHoldLimit(bool _state) external onlyOwner {
isMaxHoldLimitValid = _state;
}

//by default MaxSellLimit is true to disable set it to false address can sell more than limit
function enableMaxSellLimit() external onlyOwner {
maxSellLimitStartTime = block.timestamp;
}

// owner can change award pool address
function setAwardPoolAddress(address payable _newAddress)
external
onlyOwner
{
awardPool = _newAddress;
}

// owner can change EarthBankWalletAddress
function setEarthBankWalletAddress(address payable _newAddress)
external
onlyOwner
{
earthBank = _newAddress;
}

// owner can change router and pair address
function setRoute(IDexRouter _router, address _pair) external onlyOwner {
dexRouter = _router;
dexPair = _pair;
}

// no one can buy or sell when trading is off except owner
// but once switched on every one can buy / sell tokens
// once switched on can never be switched off
function startTrading() external onlyOwner {
require(!tradingOpen, "BEP20: Already enabled");
tradingOpen = true;
launchTime = block.timestamp;
swapAndLiquifyEnabled = true;
}

//to receive BNB from dexRouter when swapping
receive() external payable {}

// internal functions for contract use

function totalFeePerTx(uint256 tAmount) internal view returns (uint256) {
uint256 percentage = tAmount
.mul(
_currentRedistributionFee
.add(_currentLiquidityFee)
.add(_currentAwardPoolFee)
.add(_currentEarthBankFee)
)
.div(1e3);
return percentage;
}

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

function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
rSupply = rSupply.sub(excludedRSupply);
tSupply = tSupply.sub(excludedTSupply);
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}

function removeAllFee() private {
_currentRedistributionFee = 0;
_currentLiquidityFee = 0;
_currentAwardPoolFee = 0;
_currentEarthBankFee = 0;
}

function setBuyFee() private {
_currentRedistributionFee = redistributionFeeOnBuying;
_currentLiquidityFee = liquidityFeeOnBuying;
_currentAwardPoolFee = awardPoolFeeOnBuying;
_currentEarthBankFee = earthBankFeeOnBuying;
}

function setSellFee() private {
_currentRedistributionFee = redistributionFeeOnSelling;
_currentLiquidityFee = liquidityFeeOnSelling;
_currentAwardPoolFee = awardPoolFeeOnSelling;
_currentEarthBankFee = earthBankFeeOnSelling;
}

function setNormalFee() private {
_currentRedistributionFee = redistributionFee;
_currentLiquidityFee = liquidityFee;
_currentAwardPoolFee = awardPoolFee;
_currentEarthBankFee = earthBankFee;
}

function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");

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

// base function to transafer tokens
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "BEP20: transfer from the zero address");
require(to != address(0), "BEP20: transfer to the zero address");
require(amount > 0, "BEP20: transfer amount must be greater than zero");

if (!tradingOpen && from != owner()) {
require(to != dexPair, "BEP20: trading is not enabled yet");
}

if (!tradingOpen && to != owner()) {
require(from != dexPair, "BEP20: trading is not enabled yet");
}

// swap and liquify
swapAndLiquify(from, to);

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

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

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

//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee){
removeAllFee();
}

// buying handler
else if (sender == dexPair) {
setBuyFee();
}

// selling handler
else if (recipient == dexPair) {
setSellFee();
if (
maxSellLimitStartTime.add(maxSellLimitDuration) > block.timestamp
) {
if (_nextSellTime[sender] < maxSellLimitStartTime) {
_sellCount[sender] = 0;
}
uint256 maxSellLimit = balanceOf(sender).div(2);
if (_sellCount[sender] == 0) {
require(
amount <= maxSellLimit,
"BEP20: can not sell more than 50%"
);
_nextSellTime[sender] = block.timestamp.add(6 hours);
_sellCount[sender] ;
} else if (_sellCount[sender] == 1) {
require(
block.timestamp >= _nextSellTime[sender],
"BEP20: wait for next sell time"
);
require(
amount <= maxSellLimit,
"BEP20: can not sell more than 50%"
);
_nextSellTime[sender] = block.timestamp.add(4 hours);
_sellCount[sender] ;
} else {
require(
block.timestamp >= _nextSellTime[sender],
"BEP20: wait for next sell time"
);
_sellCount[sender] ;
}
}
}

// normal transaction handler
else {
setNormalFee();
}

// check if sender or reciver excluded from reward then do transfer accordingly
if (
_isExcludedFromReward[sender] && !_isExcludedFromReward[recipient]
) {
_transferFromExcluded(sender, recipient, amount);
} else if (
!_isExcludedFromReward[sender] && _isExcludedFromReward[recipient]
) {
_transferToExcluded(sender, recipient, amount);
} else if (
_isExcludedFromReward[sender] && _isExcludedFromReward[recipient]
) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}
}

function _checkMaxWalletAmount(address to, uint256 amount) private view{
if (
!_isExcludedFromMaxHoldLimit[to] // by default false
) {
if (isMaxHoldLimitValid) {
require(
balanceOf(to).add(amount) <= maxHoldingAmount,
"BEP20: amount exceed max holding limit"
);
}
}
}

// if both sender and receiver are not excluded from reward
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(
totalFeePerTx(tAmount).mul(currentRate)
);
_checkMaxWalletAmount(recipient, tTransferAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);
emit Transfer(sender, recipient, tTransferAmount);
}

// if receiver is excluded from reward
function _transferToExcluded(
address sender,
address recipient,
uint256 tAmount
) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
_checkMaxWalletAmount(recipient, tTransferAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
excludedTSupply = excludedTSupply.add(tAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);

emit Transfer(sender, recipient, tTransferAmount);
}

// if sender is excluded from reward
function _transferFromExcluded(
address sender,
address recipient,
uint256 tAmount
) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(
totalFeePerTx(tAmount).mul(currentRate)
);
_checkMaxWalletAmount(recipient, tTransferAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
excludedTSupply = excludedTSupply.sub(tAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);

emit Transfer(sender, recipient, tTransferAmount);
}

// if both sender and receiver are excluded from reward
function _transferBothExcluded(
address sender,
address recipient,
uint256 tAmount
) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
_checkMaxWalletAmount(recipient, tTransferAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
excludedTSupply = excludedTSupply.sub(tAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
excludedTSupply = excludedTSupply.add(tAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);

emit Transfer(sender, recipient, tTransferAmount);
}

// take fees for liquidity, award pool and earth bank
function _takeAllFee(uint256 tAmount, uint256 currentRate) internal {
uint256 tFee = tAmount
.mul(
_currentLiquidityFee.add(_currentAwardPoolFee).add(
_currentEarthBankFee
)
)
.div(1e3);

if(tFee > 0){
_accumulatedLiquidity = _accumulatedLiquidity.add(tAmount.mul(_currentLiquidityFee).div(1e3));
_accumulatedAwardPool = _accumulatedAwardPool.add(tAmount.mul(_currentAwardPoolFee).div(1e3));
_accumulatedEarthBank = _accumulatedEarthBank.add(tAmount.mul(_currentEarthBankFee).div(1e3));

uint256 rFee = tFee.mul(currentRate);
if (_isExcludedFromReward[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tFee);
else _rOwned[address(this)] = _rOwned[address(this)].add(rFee);

emit Transfer(_msgSender(), address(this), tFee);
}
}

// for automatic redistribution among all holders on each tx
function _reflectFee(uint256 tAmount) private {
uint256 tFee = tAmount.mul(_currentRedistributionFee).div(1e3);
uint256 rFee = tFee.mul(_getRate());
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}

function swapAndLiquify(address from, address to) private {
// is the token balance of this contract address over the min number of
// tokens that we need to initiate a swap liquidity lock?
// also, don't get caught in a circular liquidity event.
// also, don't swap & liquify if sender is Dex pair.
uint256 contractTokenBalance = balanceOf(address(this));

bool shouldSell = contractTokenBalance >= minTokenToSwap;

if (
shouldSell &&
from != dexPair &&
swapAndLiquifyEnabled &&
!(from == address(this) && to == address(dexPair)) // swap 1 time
) {
// approve contract
_approve(address(this), address(dexRouter), contractTokenBalance);

uint256 halfLiquid = _accumulatedLiquidity.div(2);
uint256 otherHalfLiquid = _accumulatedLiquidity.sub(halfLiquid);

uint256 tokenAmountToBeSwapped = contractTokenBalance.sub(
otherHalfLiquid
);

// now is to lock into liquidty pool
Utils.swapTokensForEth(address(dexRouter), tokenAmountToBeSwapped);

uint256 deltaBalance = address(this).balance;
uint256 bnbToBeAddedToLiquidity = deltaBalance.mul(halfLiquid).div(tokenAmountToBeSwapped);
uint256 bnbForAwardPool = deltaBalance.mul(_accumulatedAwardPool).div(tokenAmountToBeSwapped);
uint256 bnbForEarthBank = deltaBalance.sub(bnbToBeAddedToLiquidity).sub(bnbForAwardPool);

// sending bnb to award pool wallet
if(bnbForAwardPool > 0)
awardPool.transfer(bnbForAwardPool);

// sending bnb to earth bank wallet
if(bnbForEarthBank > 0)
earthBank.transfer(bnbForEarthBank);

// add liquidity to Dex
if(bnbToBeAddedToLiquidity > 0){
Utils.addLiquidity(
address(dexRouter),
owner(),
otherHalfLiquid,
bnbToBeAddedToLiquidity
);

emit SwapAndLiquify(
halfLiquid,
bnbToBeAddedToLiquidity,
otherHalfLiquid
);
}

// Reset current accumulated amount
_accumulatedLiquidity = 0;
_accumulatedAwardPool = 0;
_accumulatedEarthBank = 0;
}
}
}

// Library for doing a swap on Dex
library Utils {
using SafeMath for uint256;

function swapTokensForEth(address routerAddress, uint256 tokenAmount)
internal
{
IDexRouter dexRouter = IDexRouter(routerAddress);

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

// make the swap
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of BNB
path,
address(this),
block.timestamp 300
);
}

function addLiquidity(
address routerAddress,
address owner,
uint256 tokenAmount,
uint256 ethAmount
) internal {
IDexRouter dexRouter = IDexRouter(routerAddress);

// add the liquidity
dexRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner,
block.timestamp 300
);
}
}

/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/

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;
}
}