/*
*
* $DEWO Token - The Native Token In DecentraWorld's Ecosystem
* DecentraWorld - Increasing Privacy Standards In DeFi
*
* Documentation: http://docs.decentraworld.co/
* GitHub: https://github.com/decentraworldDEWO
* DecentraWorld: https://DecentraWorld.co/
* DAO: https://dao.decentraworld.co/
* Governance: https://gov.decentraworld.co/
* DecentraMix: https://decentramix.io/
*
*░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░
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*░░░░░░░░░░░░░░╚██╔╝░╚██╔╝░╚█████╔╝██║░░██║███████╗██████╔╝░░░░░░░░░░░░
*░░░░░░░░░░░░░░░╚═╝░░░╚═╝░░░╚════╝░╚═╝░░╚═╝╚══════╝╚═════╝░░░░░░░░░░░░░
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*
*/
// SPDX-License-Identifier: MIT

// File: @OpenZeppelin/contracts/utils/math/SafeMath.sol

// OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a b;
if (c < a) return (false, 0);
return (true, c);
}
}

/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}

/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// 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 (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}

/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}

/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}

/**
* @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) {
return a b;
}

/**
* @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 a - b;
}

/**
* @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) {
return a * b;
}

/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting 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 a % b;
}

/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}

/**
* @dev Returns the integer division of two unsigned integers, reverting 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) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* 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) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}

// File: @OpenZeppelin/contracts/utils/Context.sol

// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
* @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;
}
}

// File: @OpenZeppelin/contracts/access/Ownable.sol

// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

/**
* @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() {
_transferOwnership(_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 {
_transferOwnership(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");
_transferOwnership(newOwner);
}

/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}

// File: contracts/DecentraWorld.sol

/*
*
* $DEWO Token - The Native Token In DecentraWorld's Ecosystem
* DecentraWorld - Increasing Privacy Standards In DeFi
*
* Documentation: http://docs.decentraworld.co/
* GitHub: https://github.com/decentraworldDEWO
* DecentraWorld: https://DecentraWorld.co/
* DAO: https://dao.decentraworld.co/
* Governance: https://gov.decentraworld.co/
* DecentraMix: https://decentramix.io/
*
*░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░
*░░██████╗░███████╗░█████╗░███████╗███╗░░██╗████████╗██████╗░░█████╗░░░
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*░░░░░░░░░░░░░░╚██╔╝░╚██╔╝░╚█████╔╝██║░░██║███████╗██████╔╝░░░░░░░░░░░░
*░░░░░░░░░░░░░░░╚═╝░░░╚═╝░░░╚════╝░╚═╝░░╚═╝╚══════╝╚═════╝░░░░░░░░░░░░░
*░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░
*
*/

pragma solidity ^0.8.7;



/**
* @dev Interfaces
*/

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

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

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

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

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

interface IDEXRouter {
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 swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;

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

interface IPancakeswapV2Pair {
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;
}

/**
* @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 to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);

/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);

/**
* @dev Moves `amount` tokens from `from` to `to` 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 from,
address to,
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);
}

/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);

/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
}

contract DecentraWorld is Context, IERC20, IERC20Metadata, Ownable {
using SafeMath for uint256;
// DecentraWorld - $DEWO
uint256 _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
// Mapping
mapping (string => uint) txTaxes;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping (address => bool) public excludeFromTax;
mapping (address => bool) public exclueFromMaxTx;
// Addresses Of Tax Receivers
address public daoandfarmingAddress;
address public marketingAddress;
address public developmentAddress;
address public coreteamAddress;

// taxes for differnet levels
struct TaxLevels {
uint taxDiscount;
uint amount;
}

struct DEWOTokenTax {
uint forMarketing;
uint forCoreTeam;
uint forDevelopment;
uint forDAOAndFarming;
}

struct TxLimit {
uint buyMaxTx;
uint sellMaxTx;
uint txcooldown;
mapping(address => uint) buys;
mapping(address => uint) sells;
mapping(address => uint) lastTx;
}

mapping (uint => TaxLevels) taxTiers;
TxLimit txSettings;

IDEXRouter public router;
address public pair;

constructor() {
_name = "DecentraWorld";
_symbol = "$DEWO";
_decimals = 18;
_totalSupply = 100000000 * (10 ** decimals());

//Temporary Tax Receivers
daoandfarmingAddress = msg.sender;
marketingAddress = 0x5d5a0368b8C383c45c625a7241473A1a4F61eA4E;
developmentAddress = 0xdA9f5e831b7D18c35CA7778eD271b4d4f3bE183E;
coreteamAddress = 0x797BD28BaE691B21e235E953043337F4794Ff9DB;

// Exclude From Taxes By Default
excludeFromTax[msg.sender] = true;
excludeFromTax[daoandfarmingAddress] = true;
excludeFromTax[marketingAddress] = true;
excludeFromTax[developmentAddress] = true;
excludeFromTax[coreteamAddress] = true;

// Exclude From MaxTx By Default
exclueFromMaxTx[msg.sender] = true;
exclueFromMaxTx[daoandfarmingAddress] = true;
exclueFromMaxTx[marketingAddress] = true;
exclueFromMaxTx[developmentAddress] = true;
exclueFromMaxTx[coreteamAddress] = true;


// Transaction taxes apply solely on swaps (buys/sells)
// Tier 1 - Default Buy Fee [6% Total]
// Tier 2 - Buy Fee [3% Total]
// Tier 3 - Buy Fee [0% Total]
//
// Automatically set the default transactions taxes
// [Tier 1: 6% Buy Fee]
txTaxes["marketingBuyTax"] = 3; // [3%] DAO, Governance, Farming Pools
txTaxes["developmentBuyTax"] = 1; // [1%] Marketing Fee
txTaxes["coreteamBuyTax"] = 1; // [1%] Development Fee
txTaxes["daoandfarmingBuyTax"] = 1; // [1%] DecentraWorld's Core-Team
// [Tier 1: 10% Sell Fee]
txTaxes["marketingSellTax"] = 4; // 4% DAO, Governance, Farming Pools
txTaxes["developmentSellTax"] = 3; // 3% Marketing Fee
txTaxes["coreteamSellTax"] = 1; // 1% Development Fee
txTaxes["daoandfarmingSellTax"] = 2; // 2% DecentraWorld's Core-Team
/*
Buy Transaction Tax - 3 tiers:
*** Must buy these amounts to qualify
Tier 1: 6%/10% (0 $DEWO balance)
Tier 2: 3%/8% (100K $DEWO balance)
Tier 3: 0%/6% (400K $DEWO balance)

Sell Transaction Tax - 3 tiers:
*** Must hold these amounts to qualify
Tier 1: 6%/10% (0 $DEWO balance)
Tier 2: 3%/8% (150K $DEWO balance)
Tier 3: 0%/6% (300K $DEWO balance)

Tax Re-distribution Buys (6%/3%/0%):
DAO Fund/Farming: 3% | 1% | 0%
Marketing Budget: 1% | 1% | 0%
Development Fund: 1% | 0% | 0%
Core-Team: 1% | 1% | 0%

Tax Re-distribution Sells (10%/8%/6%):
DAO Fund/Farming: 4% | 3% | 3%
Marketing Budget: 3% | 2% | 1%
Development Fund: 1% | 1% | 1%
Core-Team: 2% | 2% | 1%
The community can disable the holder rewards fee and migrate that
fee to the rewards/staking pool. This can be done via the Governance portal.
*/
// Default Tax Tiers & Discounts
// Get a 50% discount on purchase tax taxes
taxTiers[0].taxDiscount = 50;
// When buying over 0.1% of total supply (100,000 $DEWO)
taxTiers[0].amount = 100000 * (10 ** decimals());

// Get a 100% discount on purchase tax taxes
taxTiers[1].taxDiscount = 99;
// When buying over 0.4% of total supply (400,000 $DEWO)
taxTiers[1].amount = 400000 * (10 ** decimals());

// Get a 20% discount on sell tax taxes
taxTiers[2].taxDiscount = 20;
// When holding over 0.15% of total supply (150,000 $DEWO)
taxTiers[2].amount = 150000 * (10 ** decimals());

// Get a 40% discount on sell tax taxes
taxTiers[3].taxDiscount = 40;
// When holding over 0.3% of total supply (300,000 $DEWO)
taxTiers[3].amount = 300000 * (10 ** decimals());

// Default txcooldown limit in minutes
txSettings.txcooldown = 30 minutes;

// Default buy limit: 1.25% of total supply
txSettings.buyMaxTx = _totalSupply.div(80);

// Default sell limit: 0.25% of total supply
txSettings.sellMaxTx = _totalSupply.div(800);


// Create a PancakeSwap (DEX) Pair For $DEWO
// This will be used to track the price of $DEWO & charge taxes to all pool buys/sells
address WBNB = 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c; // Wrapped BNB on Binance Smart Chain
address _router = 0x10ED43C718714eb63d5aA57B78B54704E256024E; // PancakeSwap Router (ChainID: 56 = BSC)
router = IDEXRouter(_router);
pair = IDEXFactory(router.factory()).createPair(WBNB, address(this));
_allowances[address(this)][address(router)] = _totalSupply;
approve(_router, _totalSupply);

// Send 100,000,000 $DEWO tokens to the dev (one time only)
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}

// Set Buy Taxes
event BuyTaxes(
uint _daoandfarmingBuyTax,
uint _coreteamBuyTax,
uint _developmentBuyTax,
uint _marketingBuyTax
);
function setBuyTaxes(
uint _daoandfarmingBuyTax,
uint _coreteamBuyTax,
uint _developmentBuyTax,
uint _marketingBuyTax
// Hardcoded limitation to the maximum tax fee per address
// Maximum tax for each buys/sells: 6% max tax per tax receiver, 24% max tax total
) external onlyOwner {
require(_daoandfarmingBuyTax <= 6, "DAO & Farming tax is above 6%!");
require(_coreteamBuyTax <= 6, "Core-Team Buy tax is above 6%!");
require(_developmentBuyTax <= 6, "Development Fund tax is above 6%!");
require(_marketingBuyTax <= 6, "Marketing tax is above 6%!");
txTaxes["daoandfarmingBuyTax"] = _daoandfarmingBuyTax;
txTaxes["coreteamBuyTax"] = _coreteamBuyTax;
txTaxes["developmentBuyTax"] = _developmentBuyTax;
txTaxes["marketingBuyTax"] = _marketingBuyTax;
emit BuyTaxes(
_daoandfarmingBuyTax,
_coreteamBuyTax,
_developmentBuyTax,
_marketingBuyTax
);
}

// Set Sell Taxes
event SellTaxes(
uint _daoandfarmingSellTax,
uint _coreteamSellTax,
uint _developmentSellTax,
uint _marketingSellTax
);
function setSellTaxes(
uint _daoandfarmingSellTax,
uint _coreteamSellTax,
uint _developmentSellTax,
uint _marketingSellTax
// Hardcoded limitation to the maximum tax fee per address
// Maximum tax for buys/sells: 6% max tax per tax receiver, 24% max tax total
) external onlyOwner {
require(_daoandfarmingSellTax <= 6, "DAO & Farming tax is above 6%!");
require(_coreteamSellTax <= 6, "Core-team tax is above 6%!");
require(_developmentSellTax <= 6, "Development tax is above 6%!");
require(_marketingSellTax <= 6, "Marketing tax is above 6%!");
txTaxes["daoandfarmingSellTax"] = _daoandfarmingSellTax;
txTaxes["coreteamSellTax"] = _coreteamSellTax;
txTaxes["developmentSellTax"] = _developmentSellTax;
txTaxes["marketingSellTax"] = _marketingSellTax;
emit SellTaxes(
_daoandfarmingSellTax,
_coreteamSellTax,
_developmentSellTax,
_marketingSellTax
);
}


// Displays a list of all current taxes
function getSellTaxes() public view returns(
uint marketingSellTax,
uint developmentSellTax,
uint coreteamSellTax,
uint daoandfarmingSellTax
) {
return (
txTaxes["marketingSellTax"],
txTaxes["developmentSellTax"],
txTaxes["coreteamSellTax"],
txTaxes["daoandfarmingSellTax"]
);
}

// Displays a list of all current taxes
function getBuyTaxes() public view returns(
uint marketingBuyTax,
uint developmentBuyTax,
uint coreteamBuyTax,
uint daoandfarmingBuyTax
) {
return (
txTaxes["marketingBuyTax"],
txTaxes["developmentBuyTax"],
txTaxes["coreteamBuyTax"],
txTaxes["daoandfarmingBuyTax"]
);
}

// Set the DAO and Farming Tax Receiver Address (daoandfarmingAddress)
function setDAOandFarmingAddress(address _daoandfarmingAddress) external onlyOwner {
daoandfarmingAddress = _daoandfarmingAddress;
}

// Set the Marketing Tax Receiver Address (marketingAddress)
function setMarketingAddress(address _marketingAddress) external onlyOwner {
marketingAddress = _marketingAddress;
}

// Set the Development Tax Receiver Address (developmentAddress)
function setDevelopmentAddress(address _developmentAddress) external onlyOwner {
developmentAddress = _developmentAddress;
}

// Set the Core-Team Tax Receiver Address (coreteamAddress)
function setCoreTeamAddress(address _coreteamAddress) external onlyOwner {
coreteamAddress = _coreteamAddress;
}

// Exclude an address from tax
function setExcludeFromTax(address _address, bool _value) external onlyOwner {
excludeFromTax[_address] = _value;
}

// Exclude an address from maximum transaction limit
function setExclueFromMaxTx(address _address, bool _value) external onlyOwner {
exclueFromMaxTx[_address] = _value;
}

// Set Buy Tax Tiers
function setBuyTaxTiers(uint _discount1, uint _amount1, uint _discount2, uint _amount2) external onlyOwner {
require(_discount1 > 0 && _discount1 < 100 && _discount2 > 0 && _discount2 < 100 && _amount1 > 0 && _amount2 > 0, "Values have to be bigger than zero!");
taxTiers[0].taxDiscount = _discount1;
taxTiers[0].amount = _amount1;
taxTiers[1].taxDiscount = _discount2;
taxTiers[1].amount = _amount2;

}

// Set Sell Tax Tiers
function setSellTaxTiers(uint _discount3, uint _amount3, uint _discount4, uint _amount4) external onlyOwner {
require(_discount3 > 0 && _discount3 < 100 && _discount4 > 0 && _discount4 < 100 && _amount3 > 0 && _amount4 > 0, "Values have to be bigger than zero!");
taxTiers[2].taxDiscount = _discount3;
taxTiers[2].amount = _amount3;
taxTiers[3].taxDiscount = _discount4;
taxTiers[3].amount = _amount4;

}

// Get Buy Tax Tiers
function getBuyTaxTiers() public view returns(uint discount1, uint amount1, uint discount2, uint amount2) {
return (taxTiers[0].taxDiscount, taxTiers[0].amount, taxTiers[1].taxDiscount, taxTiers[1].amount);
}

// Get Sell Tax Tiers
function getSellTaxTiers() public view returns(uint discount3, uint amount3, uint discount4, uint amount4) {
return (taxTiers[2].taxDiscount, taxTiers[2].amount, taxTiers[3].taxDiscount, taxTiers[3].amount);
}

// Set Transaction Settings: Max Buy Limit, Max Sell Limit, Cooldown Limit.
function setTxSettings(uint _buyMaxTx, uint _sellMaxTx, uint _txcooldown) external onlyOwner {
require(_buyMaxTx >= _totalSupply.div(200), "Buy transaction limit is too low!"); // 0.5%
require(_sellMaxTx >= _totalSupply.div(400), "Sell transaction limit is too low!"); // 0.25%
require(_txcooldown <= 4 minutes, "Cooldown should be 4 minutes or less!");
txSettings.buyMaxTx = _buyMaxTx;
txSettings.sellMaxTx = _sellMaxTx;
txSettings.txcooldown = _txcooldown;
}

// Get Max Transaction Settings: Max Buy, Max Sell, Cooldown Limit.
function getTxSettings() public view returns(uint buyMaxTx, uint sellMaxTx, uint txcooldown) {
return (txSettings.buyMaxTx, txSettings.sellMaxTx, txSettings.txcooldown);
}

// Check Buy Limit During A Cooldown (used in _transfer)
function checkBuyTxLimit(address _sender, uint256 _amount) internal view {
require(
exclueFromMaxTx[_sender] == true ||
txSettings.buys[_sender].add(_amount) < txSettings.buyMaxTx,
"Buy transaction limit reached!"
);
}

// Check Sell Limit During A Cooldown (used in _transfer)
function checkSellTxLimit(address _sender, uint256 _amount) internal view {
require(
exclueFromMaxTx[_sender] == true ||
txSettings.sells[_sender].add(_amount) < txSettings.sellMaxTx,
"Sell transaction limit reached!"
);
}

// Saves the recent buys & sells during a cooldown (used in _transfer)
function setRecentTx(bool _isSell, address _sender, uint _amount) internal {
if(txSettings.lastTx[_sender].add(txSettings.txcooldown) < block.timestamp) {
_isSell ? txSettings.sells[_sender] = _amount : txSettings.buys[_sender] = _amount;
} else {
_isSell ? txSettings.sells[_sender] = _amount : txSettings.buys[_sender] = _amount;
}

txSettings.lastTx[_sender] = block.timestamp;
}

// Get the recent buys, sells, and the last transaction
function getRecentTx(address _address) public view returns(uint buys, uint sells, uint lastTx) {
return (txSettings.buys[_address], txSettings.sells[_address], txSettings.lastTx[_address]);
}

// Get $DEWO Token Price In BNB
function getTokenPrice(uint _amount) public view returns(uint) {
IPancakeswapV2Pair pcsPair = IPancakeswapV2Pair(pair);
IERC20 token1 = IERC20(pcsPair.token1());
(uint Res0, uint Res1,) = pcsPair.getReserves();
uint res0 = Res0*(10**token1.decimals());
return((_amount.mul(res0)).div(Res1));
}

/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}

/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}

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

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

function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}

/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}

/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}

/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}

/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}

/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) addedValue);
return true;
}

/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}

return true;
}

/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token taxes, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");

uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");

uint marketingFee;
uint developmentFee;
uint coreteamFee;
uint daoandfarmingFee;

uint taxDiscount;
bool hasTaxes = true;

// Buys from PancakeSwap's $DEWO pool
if(from == pair) {
checkBuyTxLimit(to, amount);
setRecentTx(false, to, amount);
marketingFee = txTaxes["marketingBuyTax"];
developmentFee = txTaxes["developmentBuyTax"];
coreteamFee = txTaxes["coreteamBuyTax"];
daoandfarmingFee = txTaxes["daoandfarmingBuyTax"];
// Transaction Tax Tiers 2 & 3 - Discounted Rate
if(amount >= taxTiers[0].amount && amount < taxTiers[1].amount) {
taxDiscount = taxTiers[0].taxDiscount;
} else if(amount >= taxTiers[1].amount) {
taxDiscount = taxTiers[1].taxDiscount;
}
}

// Sells from PancakeSwap's $DEWO pool
else if(to == pair) {
checkSellTxLimit(from, amount);
setRecentTx(true, from, amount);
marketingFee = txTaxes["marketingSellTax"];
developmentFee = txTaxes["developmentSellTax"];
coreteamFee = txTaxes["coreteamSellTax"];
daoandfarmingFee = txTaxes["daoandfarmingSellTax"];
// Calculate the balance after this transaction
uint newBalanceAmount = fromBalance.sub(amount);
// Transaction Tax Tiers 2 & 3 - Discounted Rate
if(newBalanceAmount >= taxTiers[2].amount && newBalanceAmount < taxTiers[3].amount) {
taxDiscount = taxTiers[2].taxDiscount;
} else if(newBalanceAmount >= taxTiers[3].amount) {
taxDiscount = taxTiers[3].taxDiscount;
}
}
unchecked {
_balances[from] = fromBalance - amount;
}
if(excludeFromTax[to] || excludeFromTax[from]) {
hasTaxes = false;
}

// Calculate taxes if this wallet is not excluded and buys/sells from $DEWO's PCS pair pool
if(hasTaxes && (to == pair || from == pair)) {
DEWOTokenTax memory DEWOTokenTaxes;
DEWOTokenTaxes.forDAOAndFarming = amount.mul(daoandfarmingFee).mul(100 - taxDiscount).div(10000);
DEWOTokenTaxes.forDevelopment = amount.mul(developmentFee).mul(100 - taxDiscount).div(10000);
DEWOTokenTaxes.forCoreTeam = amount.mul(coreteamFee).mul(100 - taxDiscount).div(10000);
DEWOTokenTaxes.forMarketing = amount.mul(marketingFee).mul(100 - taxDiscount).div(10000);


// Calculate total taxes and deduct from the transfered amount
uint totalTaxes =
DEWOTokenTaxes.forDAOAndFarming
.add(DEWOTokenTaxes.forDevelopment)
.add(DEWOTokenTaxes.forCoreTeam)
.add(DEWOTokenTaxes.forMarketing);
amount = amount.sub(totalTaxes);

// Pay DAO And Farming Taxes
_balances[daoandfarmingAddress] = DEWOTokenTaxes.forDAOAndFarming;
emit Transfer(from, daoandfarmingAddress, DEWOTokenTaxes.forDAOAndFarming);

// Pay Development Fund Taxes
_balances[developmentAddress] = DEWOTokenTaxes.forDevelopment;
emit Transfer(from, developmentAddress, DEWOTokenTaxes.forDevelopment);

// Pay Core-Team Taxes
_balances[coreteamAddress] = DEWOTokenTaxes.forCoreTeam;
emit Transfer(from, coreteamAddress, DEWOTokenTaxes.forCoreTeam);

// Pay Marketing Taxes
_balances[marketingAddress] = DEWOTokenTaxes.forMarketing;
emit Transfer(from, marketingAddress, DEWOTokenTaxes.forMarketing);

}
_balances[to] = amount;
emit Transfer(from, to, amount);
}

/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");

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

/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
}