// File: bep-20.sol

/**

Website: https://metano.finance

Telegram: https://t.me/metano_finance

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
__ __ __
/ \ / | / |
$$ \ /$$ | ______ _$$ |_ ______ _______ ______
$$$ \ /$$$ | / \ / $$ | / \ / \ / \
$$$$ /$$$$ |/$$$$$$ |$$$$$$/ $$$$$$ |$$$$$$$ |/$$$$$$ |
$$ $$ $$/$$ |$$ $$ | $$ | __ / $$ |$$ | $$ |$$ | $$ |
$$ |$$$/ $$ |$$$$$$$$/ $$ |/ |/$$$$$$$ |$$ | $$ |$$ \__$$ |
$$ | $/ $$ |$$ | $$ $$/ $$ $$ |$$ | $$ |$$ $$/
$$/ $$/ $$$$$$$/ $$$$/ $$$$$$$/ $$/ $$/ $$$$$$/

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

What is METANO?
$METANO aims to become a token whose inherent value represents the power of the strongest governance tokens
in the space.

Take a look at some of the features that make up Metano:
MAP gives the Metano token automatic staking and compounding features, and the highest Fixed APY in the market
at 301,223% for the first 12 months.
Metano team are a diverse group of highly skilled developers, security experts, viral marketers, and professional
yield farmers having profound experience in Defi & farming. We have been analyzing all the successful products in
Defi space and want to bring a break through product to the market.

Metano is a company focused on Defi innovation that creates benefits and value for Metano token holders. Our MAP
protocol that is used within the Metano token grants exceptional benefits for holders of $METANO.
Easy and Safe Staking - The easiest auto-staking in Defi. We provide Autostaking right in your wallet, the Metano
token always stays in your wallet so it doesn’t need to be put in a centralized authority. All you need to do is buy, hold and automatically receive rewards in your wallet so there’s no more complicated staking processes at all.

A Fixed APY – APYs that fluctuate means you can never tell how many tokens you will receive. Other Defi protocols
pay out a high APY that can fluctuate by 90% in a day. Metano APY is fixed, you can predict how rich you will be in a year.
Highest Fixed APY - Metano pays out at 301,223% in the first 12 months, the highest you can get anywhere in the
world. After the first 12 months the interest rate drops over a predefined Long-term Interest Cycle period.
Low Risk with the Metano Insurance Fund (MIF) -Five percent( 5%) of all trading fees are stored in the Metano
Insurance Fund which helps sustain and back the staking rewards by maintaining price stability and greatly reducing downside risk.

Defi 3.0 multichain farming - We will use some percentage of buy & sell tax to create the Risk Free Value fund
and the treasury fund to multichain farming. The RFV funds are bridged to other EVM-compatible blockchains -
like Avalanche, Fantom, Solana, Metis, Polygon, etc. to farm at the highest APY farms and the profit returned
Metano insurance fund.

Never Miss Payments - You don't need to worry about having to re-stake your tokens. Interest yield is paid
automatically and compounded in your wallet, guaranteeing you will never miss a payment.
Fastest Auto-compounding protocol - The Metano Protocol pays every Metano Token holder every 30 minutes and
48 times everyday, making it the fastest auto-compounding protocol in crypto.

Auto Token Burn - One of the most exciting features of the Metano Protocol is an automatic token burn system
named “The Pit” which prevents circulating supply getting out of hand and becoming unmanageable.
The Pit burns 2% out of Metano Token transactions.


*/

pragma solidity ^0.7.4;

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

function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;

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) {
require(b != -1 || a != MIN_INT256);

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;
}
}

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) {
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;

return c;
}

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

interface IERC20 {
function totalSupply() external view returns (uint256);

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

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

function transfer(address to, uint256 value) external returns (bool);

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

function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);

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

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

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

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

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

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

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

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

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

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

function initialize(address, address) external;
}

interface IPancakeSwapRouter{
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);
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;
}

interface IPancakeSwapFactory {
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;
}

contract Ownable {
address private _owner;

event OwnershipRenounced(address indexed previousOwner);

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

constructor() {
_owner = msg.sender;
}

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

modifier onlyOwner() {
require(isOwner());
_;
}

function isOwner() public view returns (bool) {
return msg.sender == _owner;
}

function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(_owner);
_owner = address(0);
}

function transferOwnership(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}

function _transferOwnership(address newOwner) internal {
require(newOwner != address(0));
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}

abstract contract ERC20Detailed is IERC20 {
string private _name;
string private _symbol;
uint8 private _decimals;

constructor(
string memory name_,
string memory symbol_,
uint8 decimals_
) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
}

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;
}
}

contract Metano is ERC20Detailed, Ownable {

using SafeMath for uint256;
using SafeMathInt for int256;

event LogRebase(uint256 indexed epoch, uint256 totalSupply);

string public _name = "Metano";
string public _symbol = "METANO";
uint8 public _decimals = 5;

IPancakeSwapPair public pairContract;
mapping(address => bool) _isFeeExempt;

modifier validRecipient(address to) {
require(to != address(0x0));
_;
}

uint256 public constant DECIMALS = 5;
uint256 public constant MAX_UINT256 = ~uint256(0);
uint8 public constant RATE_DECIMALS = 7;

uint256 private constant INITIAL_FRAGMENTS_SUPPLY =
325 * 10**3 * 10**DECIMALS;

uint256 public liquidityFee = 40;
uint256 public treasuryFee = 25;
uint256 public safuuInsuranceFundFee = 50;
uint256 public sellFee = 20;
uint256 public firePitFee = 25;
uint256 public totalFee =
liquidityFee.add(treasuryFee).add(safuuInsuranceFundFee).add(
firePitFee
);
uint256 public feeDenominator = 1000;

address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;

address public autoLiquidityReceiver;
address public treasuryReceiver;
address public safuuInsuranceFundReceiver;
address public firePit;
address public pairAddress;
bool public swapEnabled = true;
IPancakeSwapRouter public router;
address public pair;
bool inSwap = false;
modifier swapping() {
inSwap = true;
_;
inSwap = false;
}

uint256 private constant TOTAL_GONS =
MAX_UINT256 - (MAX_UINT256 % INITIAL_FRAGMENTS_SUPPLY);

uint256 private constant MAX_SUPPLY = 325 * 10**7 * 10**DECIMALS;

bool public _autoRebase;
bool public _autoAddLiquidity;
uint256 public _initRebaseStartTime;
uint256 public _lastRebasedTime;
uint256 public _lastAddLiquidityTime;
uint256 public _totalSupply;
uint256 private _gonsPerFragment;

mapping(address => uint256) private _gonBalances;
mapping(address => mapping(address => uint256)) private _allowedFragments;
mapping(address => bool) public blacklist;

constructor() ERC20Detailed("METANO", "METANO", uint8(DECIMALS)) Ownable() {

router = IPancakeSwapRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
pair = IPancakeSwapFactory(router.factory()).createPair(
router.WETH(),
address(this)
);

autoLiquidityReceiver = 0x9668B8feB702502A7CDc1D009c1ecAe7c8390460;
treasuryReceiver = 0x3e2209b8eaEA9bf5a1eaC98FC4E1be512bA76D7D;
safuuInsuranceFundReceiver = 0x20f666CcadD5248868dC26210cFDABccEC7Ab177;
firePit = 0x29Fc2f60Dc9A4593ac08175bA77437d8306Ae014;

_allowedFragments[address(this)][address(router)] = uint256(-1);
pairAddress = pair;
pairContract = IPancakeSwapPair(pair);

_totalSupply = INITIAL_FRAGMENTS_SUPPLY;
_gonBalances[treasuryReceiver] = TOTAL_GONS;
_gonsPerFragment = TOTAL_GONS.div(_totalSupply);
_initRebaseStartTime = block.timestamp;
_lastRebasedTime = block.timestamp;
_autoRebase = true;
_autoAddLiquidity = true;
_isFeeExempt[treasuryReceiver] = true;
_isFeeExempt[address(this)] = true;

_transferOwnership(treasuryReceiver);
emit Transfer(address(0x0), treasuryReceiver, _totalSupply);
}

function rebase() internal {

if ( inSwap ) return;
uint256 rebaseRate;
uint256 deltaTimeFromInit = block.timestamp - _initRebaseStartTime;
uint256 deltaTime = block.timestamp - _lastRebasedTime;
uint256 times = deltaTime.div(15 minutes);
uint256 epoch = times.mul(15);

if (deltaTimeFromInit < (365 days)) {
rebaseRate = 2355;
} else if (deltaTimeFromInit >= (365 days)) {
rebaseRate = 211;
} else if (deltaTimeFromInit >= ((15 * 365 days) / 10)) {
rebaseRate = 14;
} else if (deltaTimeFromInit >= (7 * 365 days)) {
rebaseRate = 2;
}

for (uint256 i = 0; i < times; i ) {
_totalSupply = _totalSupply
.mul((10**RATE_DECIMALS).add(rebaseRate))
.div(10**RATE_DECIMALS);
}

_gonsPerFragment = TOTAL_GONS.div(_totalSupply);
_lastRebasedTime = _lastRebasedTime.add(times.mul(15 minutes));

pairContract.sync();

emit LogRebase(epoch, _totalSupply);
}

function transfer(address to, uint256 value)
external
override
validRecipient(to)
returns (bool)
{
_transferFrom(msg.sender, to, value);
return true;
}

function transferFrom(
address from,
address to,
uint256 value
) external override validRecipient(to) returns (bool) {

if (_allowedFragments[from][msg.sender] != uint256(-1)) {
_allowedFragments[from][msg.sender] = _allowedFragments[from][
msg.sender
].sub(value, "Insufficient Allowance");
}
_transferFrom(from, to, value);
return true;
}

function _basicTransfer(
address from,
address to,
uint256 amount
) internal returns (bool) {
uint256 gonAmount = amount.mul(_gonsPerFragment);
_gonBalances[from] = _gonBalances[from].sub(gonAmount);
_gonBalances[to] = _gonBalances[to].add(gonAmount);
return true;
}

function _transferFrom(
address sender,
address recipient,
uint256 amount
) internal returns (bool) {

require(!blacklist[sender] && !blacklist[recipient], "in_blacklist");

if (inSwap) {
return _basicTransfer(sender, recipient, amount);
}
if (shouldRebase()) {
rebase();
}

if (shouldAddLiquidity()) {
addLiquidity();
}

if (shouldSwapBack()) {
swapBack();
}

uint256 gonAmount = amount.mul(_gonsPerFragment);
_gonBalances[sender] = _gonBalances[sender].sub(gonAmount);
uint256 gonAmountReceived = shouldTakeFee(sender, recipient)
? takeFee(sender, recipient, gonAmount)
: gonAmount;
_gonBalances[recipient] = _gonBalances[recipient].add(
gonAmountReceived
);


emit Transfer(
sender,
recipient,
gonAmountReceived.div(_gonsPerFragment)
);
return true;
}

function takeFee(
address sender,
address recipient,
uint256 gonAmount
) internal returns (uint256) {
uint256 _totalFee = totalFee;
uint256 _treasuryFee = treasuryFee;

if (recipient == pair) {
_totalFee = totalFee.add(sellFee);
_treasuryFee = treasuryFee.add(sellFee);
}

uint256 feeAmount = gonAmount.div(feeDenominator).mul(_totalFee);

_gonBalances[firePit] = _gonBalances[firePit].add(
gonAmount.div(feeDenominator).mul(firePitFee)
);
_gonBalances[address(this)] = _gonBalances[address(this)].add(
gonAmount.div(feeDenominator).mul(_treasuryFee.add(safuuInsuranceFundFee))
);
_gonBalances[autoLiquidityReceiver] = _gonBalances[autoLiquidityReceiver].add(
gonAmount.div(feeDenominator).mul(liquidityFee)
);

emit Transfer(sender, address(this), feeAmount.div(_gonsPerFragment));
return gonAmount.sub(feeAmount);
}

function addLiquidity() internal swapping {
uint256 autoLiquidityAmount = _gonBalances[autoLiquidityReceiver].div(
_gonsPerFragment
);
_gonBalances[address(this)] = _gonBalances[address(this)].add(
_gonBalances[autoLiquidityReceiver]
);
_gonBalances[autoLiquidityReceiver] = 0;
uint256 amountToLiquify = autoLiquidityAmount.div(2);
uint256 amountToSwap = autoLiquidityAmount.sub(amountToLiquify);

if( amountToSwap == 0 ) {
return;
}
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();

uint256 balanceBefore = address(this).balance;


router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);

uint256 amountETHLiquidity = address(this).balance.sub(balanceBefore);

if (amountToLiquify > 0&&amountETHLiquidity > 0) {
router.addLiquidityETH{value: amountETHLiquidity}(
address(this),
amountToLiquify,
0,
0,
autoLiquidityReceiver,
block.timestamp
);
}
_lastAddLiquidityTime = block.timestamp;
}

function swapBack() internal swapping {

uint256 amountToSwap = _gonBalances[address(this)].div(_gonsPerFragment);

if( amountToSwap == 0) {
return;
}

uint256 balanceBefore = address(this).balance;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();


router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);

uint256 amountETHToTreasuryAndSIF = address(this).balance.sub(
balanceBefore
);

(bool success, ) = payable(treasuryReceiver).call{
value: amountETHToTreasuryAndSIF.mul(treasuryFee).div(
treasuryFee.add(safuuInsuranceFundFee)
),
gas: 30000
}("");
(success, ) = payable(safuuInsuranceFundReceiver).call{
value: amountETHToTreasuryAndSIF.mul(safuuInsuranceFundFee).div(
treasuryFee.add(safuuInsuranceFundFee)
),
gas: 30000
}("");
}

function withdrawAllToTreasury() external swapping onlyOwner {

uint256 amountToSwap = _gonBalances[address(this)].div(_gonsPerFragment);
require( amountToSwap > 0,"There is no Safuu token deposited in token contract");
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
treasuryReceiver,
block.timestamp
);
}

function shouldTakeFee(address from, address to)
internal
view
returns (bool)
{
return
(pair == from || pair == to) &&
!_isFeeExempt[from];
}

function shouldRebase() internal view returns (bool) {
return
_autoRebase &&
(_totalSupply < MAX_SUPPLY) &&
msg.sender != pair &&
!inSwap &&
block.timestamp >= (_lastRebasedTime 15 minutes);
}

function shouldAddLiquidity() internal view returns (bool) {
return
_autoAddLiquidity &&
!inSwap &&
msg.sender != pair &&
block.timestamp >= (_lastAddLiquidityTime 2 days);
}

function shouldSwapBack() internal view returns (bool) {
return
!inSwap &&
msg.sender != pair ;
}

function setAutoRebase(bool _flag) external onlyOwner {
if (_flag) {
_autoRebase = _flag;
_lastRebasedTime = block.timestamp;
} else {
_autoRebase = _flag;
}
}

function setAutoAddLiquidity(bool _flag) external onlyOwner {
if(_flag) {
_autoAddLiquidity = _flag;
_lastAddLiquidityTime = block.timestamp;
} else {
_autoAddLiquidity = _flag;
}
}

function allowance(address owner_, address spender)
external
view
override
returns (uint256)
{
return _allowedFragments[owner_][spender];
}

function decreaseAllowance(address spender, uint256 subtractedValue)
external
returns (bool)
{
uint256 oldValue = _allowedFragments[msg.sender][spender];
if (subtractedValue >= oldValue) {
_allowedFragments[msg.sender][spender] = 0;
} else {
_allowedFragments[msg.sender][spender] = oldValue.sub(
subtractedValue
);
}
emit Approval(
msg.sender,
spender,
_allowedFragments[msg.sender][spender]
);
return true;
}

function increaseAllowance(address spender, uint256 addedValue)
external
returns (bool)
{
_allowedFragments[msg.sender][spender] = _allowedFragments[msg.sender][
spender
].add(addedValue);
emit Approval(
msg.sender,
spender,
_allowedFragments[msg.sender][spender]
);
return true;
}

function approve(address spender, uint256 value)
external
override
returns (bool)
{
_allowedFragments[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}

function checkFeeExempt(address _addr) external view returns (bool) {
return _isFeeExempt[_addr];
}

function getCirculatingSupply() public view returns (uint256) {
return
(TOTAL_GONS.sub(_gonBalances[DEAD]).sub(_gonBalances[ZERO])).div(
_gonsPerFragment
);
}

function isNotInSwap() external view returns (bool) {
return !inSwap;
}

function manualSync() external {
IPancakeSwapPair(pair).sync();
}

function setFeeReceivers(
address _autoLiquidityReceiver,
address _treasuryReceiver,
address _safuuInsuranceFundReceiver,
address _firePit
) external onlyOwner {
autoLiquidityReceiver = _autoLiquidityReceiver;
treasuryReceiver = _treasuryReceiver;
safuuInsuranceFundReceiver = _safuuInsuranceFundReceiver;
firePit = _firePit;
}

function getLiquidityBacking(uint256 accuracy)
public
view
returns (uint256)
{
uint256 liquidityBalance = _gonBalances[pair].div(_gonsPerFragment);
return
accuracy.mul(liquidityBalance.mul(2)).div(getCirculatingSupply());
}

function setWhitelist(address _addr) external onlyOwner {
_isFeeExempt[_addr] = true;
}

function setBotBlacklist(address _botAddress, bool _flag) external onlyOwner {
require(isContract(_botAddress), "only contract address, not allowed exteranlly owned account");
blacklist[_botAddress] = _flag;
}

function setPairAddress(address _pairAddress) public onlyOwner {
pairAddress = _pairAddress;
}

function setLP(address _address) external onlyOwner {
pairContract = IPancakeSwapPair(_address);
}

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

function balanceOf(address who) external view override returns (uint256) {
return _gonBalances[who].div(_gonsPerFragment);
}

function isContract(address addr) internal view returns (bool) {
uint size;
assembly { size := extcodesize(addr) }
return size > 0;
}

receive() external payable {}
}