/** *Submitted for verification at BscScan.com on 2021-07-23 */ // SPDX-License-Identifier: MIT pragma solidity ^0.6.2; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.2; 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; } } pragma solidity ^0.6.2; /** * @title SafeMathInt * @dev Math operations for int256 with overflow safety checks. */ library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256)); require((b == 0) || (c / b == a)); return c; } /** * @dev Division of two int256 variables and fails on overflow. */ function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ 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; } /** * @dev Adds two int256 variables and fails on overflow. */ 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; } /** * @dev Converts to absolute value, and fails on overflow. */ function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns (uint256) { require(a >= 0); return uint256(a); } } pragma solidity ^0.6.2; /** * @title SafeMathUint * @dev Math operations with safety checks that revert on error */ library SafeMathUint { function toInt256Safe(uint256 a) internal pure returns (int256) { int256 b = int256(a); require(b >= 0); return b; } } pragma solidity ^0.6.2; 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 () public { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view 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 { emit OwnershipTransferred(_owner, address(0)); _owner = 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"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } pragma solidity ^0.6.2; interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); } pragma solidity >=0.6.2; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } interface IUniswapV2Router02_ApeSwap is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } pragma solidity ^0.6.2; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function mint(address to) external returns (uint liquidity); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } pragma solidity ^0.6.2; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } pragma solidity ^0.6.2; //libraries library IterableMapping { // Iterable mapping from address to uint; struct Map { address[] keys; mapping(address => uint) values; mapping(address => uint) indexOf; mapping(address => bool) inserted; } function get(Map storage map, address key) public view returns (uint) { return map.values[key]; } function getIndexOfKey(Map storage map, address key) public view returns (int) { if(!map.inserted[key]) { return -1; } return int(map.indexOf[key]); } function getKeyAtIndex(Map storage map, uint index) public view returns (address) { return map.keys[index]; } function size(Map storage map) public view returns (uint) { return map.keys.length; } function set(Map storage map, address key, uint val) public { if (map.inserted[key]) { map.values[key] = val; } else { map.inserted[key] = true; map.values[key] = val; map.indexOf[key] = map.keys.length; map.keys.push(key); } } function remove(Map storage map, address key) public { if (!map.inserted[key]) { return; } delete map.inserted[key]; delete map.values[key]; uint index = map.indexOf[key]; uint lastIndex = map.keys.length - 1; address lastKey = map.keys[lastIndex]; map.indexOf[lastKey] = index; delete map.indexOf[key]; map.keys[index] = lastKey; map.keys.pop(); } } pragma solidity ^0.6.2; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ 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); } pragma solidity ^0.6.2; /** * @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); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } pragma solidity ^0.6.2; contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) public { _name = name_; _symbol = symbol_; } /** * @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; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @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 Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } pragma solidity ^0.6.2; /// @title Dividend-Paying Token Interface /// @author Roger Wu (https://github.com/roger-wu) /// @dev An interface for a dividend-paying token contract. interface DividendPayingTokenInterface { /// @notice View the amount of dividend in wei that an address can withdraw. /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` can withdraw. function dividendOf(address _owner) external view returns(uint256); /// @notice Withdraws the ether distributed to the sender. /// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer. /// MUST emit a `DividendWithdrawn` event if the amount of ether transferred is greater than 0. function withdrawDividend() external; /// @dev This event MUST emit when ether is distributed to token holders. /// @param from The address which sends ether to this contract. /// @param weiAmount The amount of distributed ether in wei. event DividendsDistributed( address indexed from, uint256 weiAmount ); /// @dev This event MUST emit when an address withdraws their dividend. /// @param to The address which withdraws ether from this contract. /// @param weiAmount The amount of withdrawn ether in wei. event DividendWithdrawn( address indexed to, uint256 weiAmount ); } pragma solidity ^0.6.2; interface DividendPayingTokenOptionalInterface { /// @notice View the amount of dividend in wei that an address can withdraw. /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` can withdraw. function withdrawableDividendOf(address _owner) external view returns(uint256); /// @notice View the amount of dividend in wei that an address has withdrawn. /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` has withdrawn. function withdrawnDividendOf(address _owner) external view returns(uint256); /// @notice View the amount of dividend in wei that an address has earned in total. /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner) /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` has earned in total. function accumulativeDividendOf(address _owner) external view returns(uint256); } pragma solidity ^0.6.2; contract DividendPayingToken is ERC20, Ownable, DividendPayingTokenInterface, DividendPayingTokenOptionalInterface { using SafeMath for uint256; using SafeMathUint for uint256; using SafeMathInt for int256; address public MATIC = address(0xCC42724C6683B7E57334c4E856f4c9965ED682bD); //MATIC uint256 constant internal magnitude = 2**128; uint256 internal magnifiedDividendPerShare; mapping(address => int256) internal magnifiedDividendCorrections; mapping(address => uint256) internal withdrawnDividends; uint256 public totalDividendsDistributed; constructor(string memory _name, string memory _symbol) public ERC20(_name, _symbol) { } function distributeMATICDividends(uint256 amount) public onlyOwner{ require(totalSupply() > 0); if (amount > 0) { magnifiedDividendPerShare = magnifiedDividendPerShare.add( (amount).mul(magnitude) / totalSupply() ); emit DividendsDistributed(msg.sender, amount); totalDividendsDistributed = totalDividendsDistributed.add(amount); } } /// @notice Withdraws the ether distributed to the sender. /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0. function withdrawDividend() public virtual override { _withdrawDividendOfUser(msg.sender); } /// @notice Withdraws the ether distributed to the sender. /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0. function _withdrawDividendOfUser(address payable user) internal returns (uint256) { uint256 _withdrawableDividend = withdrawableDividendOf(user); if (_withdrawableDividend > 0) { withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend); emit DividendWithdrawn(user, _withdrawableDividend); bool success = IERC20(MATIC).transfer(user, _withdrawableDividend); if(!success) { withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend); return 0; } return _withdrawableDividend; } return 0; } /// @notice View the amount of dividend in wei that an address can withdraw. /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` can withdraw. function dividendOf(address _owner) public view override returns(uint256) { return withdrawableDividendOf(_owner); } /// @notice View the amount of dividend in wei that an address can withdraw. /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` can withdraw. function withdrawableDividendOf(address _owner) public view override returns(uint256) { return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]); } /// @notice View the amount of dividend in wei that an address has withdrawn. /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` has withdrawn. function withdrawnDividendOf(address _owner) public view override returns(uint256) { return withdrawnDividends[_owner]; } /// @notice View the amount of dividend in wei that an address has earned in total. /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner) /// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude /// @param _owner The address of a token holder. /// @return The amount of dividend in wei that `_owner` has earned in total. function accumulativeDividendOf(address _owner) public view override returns(uint256) { return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe() .add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude; } /// @dev Internal function that transfer tokens from one address to another. /// Update magnifiedDividendCorrections to keep dividends unchanged. /// @param from The address to transfer from. /// @param to The address to transfer to. /// @param value The amount to be transferred. function _transfer(address from, address to, uint256 value) internal virtual override { require(false); int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe(); magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection); magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection); } /// @dev Internal function that mints tokens to an account. /// Update magnifiedDividendCorrections to keep dividends unchanged. /// @param account The account that will receive the created tokens. /// @param value The amount that will be created. function _mint(address account, uint256 value) internal override { super._mint(account, value); magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account] .sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() ); } /// @dev Internal function that burns an amount of the token of a given account. /// Update magnifiedDividendCorrections to keep dividends unchanged. /// @param account The account whose tokens will be burnt. /// @param value The amount that will be burnt. function _burn(address account, uint256 value) internal override { super._burn(account, value); magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account] .add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() ); } function _setBalance(address account, uint256 newBalance) internal { uint256 currentBalance = balanceOf(account); if(newBalance > currentBalance) { uint256 mintAmount = newBalance.sub(currentBalance); _mint(account, mintAmount); } else if(newBalance < currentBalance) { uint256 burnAmount = currentBalance.sub(newBalance); _burn(account, burnAmount); } } } pragma solidity ^0.6.2; contract BabyMatic is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public uniswapV2Router; IUniswapV2Router02_ApeSwap public uniswapV2Router_ApeSwap; address public uniswapV2Pair; bool private swapping; BABYMATICDividendTracker public dividendTracker; address public deadWallet = 0x000000000000000000000000000000000000dEaD; address public MATIC = address(0xCC42724C6683B7E57334c4E856f4c9965ED682bD); //MATIC address public WETH = address(0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c); //WBNB uint256 public swapTokensAtAmount = 2000000 * (10**18); mapping(address => bool) public _isBlacklisted; uint256 public MATICRewardsFee = 7; uint256 public liquidityFee = 3; uint256 public marketingFee = 5; uint256 public totalFees = MATICRewardsFee.add(liquidityFee).add(marketingFee); bool private tradingOpen = false; address public _marketingWalletAddress = 0x19A4Fb294452300E2539E3d7690d6CF479B9d4a3; address public _devWalletAddress = 0xAC7e0aC745370A146E6aD78cd76a5D2b8946657A; // use by default 300,000 gas to process auto-claiming dividends uint256 public gasForProcessing = 300000; // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateDividendTracker(address indexed newAddress, address indexed oldAddress); event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event ExcludeMultipleAccountsFromFees(address[] accounts, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event LiquidityWalletUpdated(address indexed newLiquidityWallet, address indexed oldLiquidityWallet); event GasForProcessingUpdated(uint256 indexed newValue, uint256 indexed oldValue); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity ); event SendDividends( uint256 tokensSwapped, uint256 amount ); event ProcessedDividendTracker( uint256 iterations, uint256 claims, uint256 lastProcessedIndex, bool indexed automatic, uint256 gas, address indexed processor ); constructor() public ERC20("Test", "TEST") { dividendTracker = new BABYMATICDividendTracker(); IUniswapV2Router02_ApeSwap _uniswapV2Router_ApeSwap = IUniswapV2Router02_ApeSwap(0xcF0feBd3f17CEf5b47b0cD257aCf6025c5BFf3b7); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E); // Create a uniswap pair for this new token address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router_ApeSwap = _uniswapV2Router_ApeSwap; uniswapV2Router = _uniswapV2Router; uniswapV2Pair = _uniswapV2Pair; _setAutomatedMarketMakerPair(_uniswapV2Pair, true); // exclude from receiving dividends dividendTracker.excludeFromDividends(address(dividendTracker)); dividendTracker.excludeFromDividends(address(this)); dividendTracker.excludeFromDividends(owner()); dividendTracker.excludeFromDividends(deadWallet); dividendTracker.excludeFromDividends(address(_uniswapV2Router)); // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(_marketingWalletAddress, true); excludeFromFees(address(this), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(owner(), 100000000000 * (10**18)); } receive() external payable { } function updateDividendTracker(address newAddress) public onlyOwner { require(newAddress != address(dividendTracker), "BABYMATIC: The dividend tracker already has that address"); BABYMATICDividendTracker newDividendTracker = BABYMATICDividendTracker(payable(newAddress)); require(newDividendTracker.owner() == address(this), "BABYMATIC: The new dividend tracker must be owned by the BABYMATIC token contract"); newDividendTracker.excludeFromDividends(address(newDividendTracker)); newDividendTracker.excludeFromDividends(address(this)); newDividendTracker.excludeFromDividends(owner()); newDividendTracker.excludeFromDividends(address(uniswapV2Router)); emit UpdateDividendTracker(newAddress, address(dividendTracker)); dividendTracker = newDividendTracker; } function updateUniswapV2Router(address newAddress) public onlyOwner { require(newAddress != address(uniswapV2Router), "BABYMATIC: The router already has that address"); emit UpdateUniswapV2Router(newAddress, address(uniswapV2Router)); uniswapV2Router = IUniswapV2Router02(newAddress); address _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()) .createPair(address(this), uniswapV2Router.WETH()); uniswapV2Pair = _uniswapV2Pair; } function excludeFromFees(address account, bool excluded) public onlyOwner { require(_isExcludedFromFees[account] != excluded, "BABYMATIC: Account is already the value of 'excluded'"); _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function excludeMultipleAccountsFromFees(address[] memory accounts, bool excluded) public onlyOwner { for(uint256 i = 0; i < accounts.length; i++) { _isExcludedFromFees[accounts[i]] = excluded; } emit ExcludeMultipleAccountsFromFees(accounts, excluded); } function setMarketingWallet(address payable wallet) external onlyOwner{ _marketingWalletAddress = wallet; } function setMATICRewardsFee(uint256 value) external onlyOwner{ MATICRewardsFee = value; totalFees = MATICRewardsFee.add(liquidityFee).add(marketingFee); } function setLiquiditFee(uint256 value) external onlyOwner{ liquidityFee = value; totalFees = MATICRewardsFee.add(liquidityFee).add(marketingFee); } function setMarketingFee(uint256 value) external onlyOwner{ marketingFee = value; totalFees = MATICRewardsFee.add(liquidityFee).add(marketingFee); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "BABYMATIC: The PancakeSwap pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function blacklistAddress(address account, bool value) external onlyOwner{ _isBlacklisted[account] = value; } function _setAutomatedMarketMakerPair(address pair, bool value) private { require(automatedMarketMakerPairs[pair] != value, "BABYMATIC: Automated market maker pair is already set to that value"); automatedMarketMakerPairs[pair] = value; if(value) { dividendTracker.excludeFromDividends(pair); } emit SetAutomatedMarketMakerPair(pair, value); } function updateGasForProcessing(uint256 newValue) public onlyOwner { require(newValue >= 200000 && newValue <= 500000, "BABYMATIC: gasForProcessing must be between 200,000 and 500,000"); require(newValue != gasForProcessing, "BABYMATIC: Cannot update gasForProcessing to same value"); emit GasForProcessingUpdated(newValue, gasForProcessing); gasForProcessing = newValue; } function updateClaimWait(uint256 claimWait) external onlyOwner { dividendTracker.updateClaimWait(claimWait); } function getClaimWait() external view returns(uint256) { return dividendTracker.claimWait(); } function getTotalDividendsDistributed() external view returns (uint256) { return dividendTracker.totalDividendsDistributed(); } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } function withdrawableDividendOf(address account) public view returns(uint256) { return dividendTracker.withdrawableDividendOf(account); } function dividendTokenBalanceOf(address account) public view returns (uint256) { return dividendTracker.balanceOf(account); } function excludeFromDividends(address account) external onlyOwner{ dividendTracker.excludeFromDividends(account); } function getAccountDividendsInfo(address account) external view returns ( address, int256, int256, uint256, uint256, uint256, uint256, uint256) { return dividendTracker.getAccount(account); } function getAccountDividendsInfoAtIndex(uint256 index) external view returns ( address, int256, int256, uint256, uint256, uint256, uint256, uint256) { return dividendTracker.getAccountAtIndex(index); } function processDividendTracker(uint256 gas) external { (uint256 iterations, uint256 claims, uint256 lastProcessedIndex) = dividendTracker.process(gas); emit ProcessedDividendTracker(iterations, claims, lastProcessedIndex, false, gas, tx.origin); } function claim() external { dividendTracker.processAccount(msg.sender, false); } function getLastProcessedIndex() external view returns(uint256) { return dividendTracker.getLastProcessedIndex(); } function getNumberOfDividendTokenHolders() external view returns(uint256) { return dividendTracker.getNumberOfTokenHolders(); } function openTrading() public onlyOwner{ tradingOpen = true; } function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(!_isBlacklisted[from] && !_isBlacklisted[to], 'Blacklisted address'); if(from != owner()){ require (tradingOpen); } if(amount == 0) { super._transfer(from, to, 0); return; } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && !swapping && !automatedMarketMakerPairs[from] && from != owner() && to != owner() ) { swapping = true; uint256 marketingTokens = contractTokenBalance.mul(marketingFee).div(totalFees); swapAndSendToFee(marketingTokens); uint256 swapTokens = contractTokenBalance.mul(liquidityFee).div(totalFees); swapAndLiquify(swapTokens); uint256 sellTokens = balanceOf(address(this)); swapAndSendDividends(sellTokens); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } if(takeFee) { uint256 fees = amount.mul(totalFees).div(100); if(automatedMarketMakerPairs[to]){ fees += amount.mul(1).div(100); } amount = amount.sub(fees); super._transfer(from, address(this), fees); } super._transfer(from, to, amount); try dividendTracker.setBalance(payable(from), balanceOf(from)) {} catch {} try dividendTracker.setBalance(payable(to), balanceOf(to)) {} catch {} if(!swapping) { uint256 gas = gasForProcessing; try dividendTracker.process(gas) returns (uint256 iterations, uint256 claims, uint256 lastProcessedIndex) { emit ProcessedDividendTracker(iterations, claims, lastProcessedIndex, true, gas, tx.origin); } catch { } } } function swapAndSendToFee(uint256 tokens) private { uint256 initialMATICBalance = IERC20(MATIC).balanceOf(address(this)); swapTokensForMatic(tokens); uint256 newBalance = (IERC20(MATIC).balanceOf(address(this))).sub(initialMATICBalance); uint256 feeSplit = newBalance.div(3); IERC20(MATIC).transfer(_marketingWalletAddress, feeSplit); IERC20(MATIC).transfer(_marketingWalletAddress, feeSplit); IERC20(MATIC).transfer(_devWalletAddress, feeSplit); } function swapAndLiquify(uint256 tokens) private { // split the contract balance into halves uint256 half = tokens.div(2); uint256 otherHalf = tokens.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 newBalance = address(this).balance.sub(initialBalance); // add liquidity to uniswap addLiquidity(otherHalf, newBalance); emit SwapAndLiquify(half, newBalance, otherHalf); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function swapTokensForMatic(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); address[] memory path_matic = new address[](2); path[0] = WETH; path[1] = MATIC; _approve(address(this), address(uniswapV2Router_ApeSwap), IERC20(WETH).balanceOf(address(this))); uniswapV2Router_ApeSwap.swapExactETHForTokens( IERC20(WETH).balanceOf(address(this)), 0, path_matic, address(this), block.timestamp); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable address(0), block.timestamp ); } function swapAndSendDividends(uint256 tokens) private{ swapTokensForMatic(tokens); uint256 dividends = IERC20(MATIC).balanceOf(address(this)); bool success = IERC20(MATIC).transfer(address(dividendTracker), dividends); if (success) { dividendTracker.distributeMATICDividends(dividends); emit SendDividends(tokens, dividends); } } } contract BABYMATICDividendTracker is Ownable, DividendPayingToken { using SafeMath for uint256; using SafeMathInt for int256; using IterableMapping for IterableMapping.Map; IterableMapping.Map private tokenHoldersMap; uint256 public lastProcessedIndex; mapping (address => bool) public excludedFromDividends; mapping (address => uint256) public lastClaimTimes; uint256 public claimWait; uint256 public minimumTokenBalanceForDividends; event ExcludeFromDividends(address indexed account); event ClaimWaitUpdated(uint256 indexed newValue, uint256 indexed oldValue); event Claim(address indexed account, uint256 amount, bool indexed automatic); constructor() public DividendPayingToken("Test_Dividen_Tracker", "TEST_Dividend_Tracker") { claimWait = 3600; minimumTokenBalanceForDividends = 200000 * (10**18); //must hold 200000+ tokens } function _transfer(address, address, uint256) internal override { require(false, "BABYMATIC_Dividend_Tracker: No transfers allowed"); } function withdrawDividend() public override { require(false, "BABYMATIC_Dividend_Tracker: withdrawDividend disabled. Use the 'claim' function on the main BABYMATIC contract."); } function excludeFromDividends(address account) external onlyOwner { require(!excludedFromDividends[account]); excludedFromDividends[account] = true; _setBalance(account, 0); tokenHoldersMap.remove(account); emit ExcludeFromDividends(account); } function updateClaimWait(uint256 newClaimWait) external onlyOwner { require(newClaimWait >= 3600 && newClaimWait <= 86400, "BABYMATIC_Dividend_Tracker: claimWait must be updated to between 1 and 24 hours"); require(newClaimWait != claimWait, "BABYMATIC_Dividend_Tracker: Cannot update claimWait to same value"); emit ClaimWaitUpdated(newClaimWait, claimWait); claimWait = newClaimWait; } function getLastProcessedIndex() external view returns(uint256) { return lastProcessedIndex; } function getNumberOfTokenHolders() external view returns(uint256) { return tokenHoldersMap.keys.length; } function getAccount(address _account) public view returns ( address account, int256 index, int256 iterationsUntilProcessed, uint256 withdrawableDividends, uint256 totalDividends, uint256 lastClaimTime, uint256 nextClaimTime, uint256 secondsUntilAutoClaimAvailable) { account = _account; index = tokenHoldersMap.getIndexOfKey(account); iterationsUntilProcessed = -1; if(index >= 0) { if(uint256(index) > lastProcessedIndex) { iterationsUntilProcessed = index.sub(int256(lastProcessedIndex)); } else { uint256 processesUntilEndOfArray = tokenHoldersMap.keys.length > lastProcessedIndex ? tokenHoldersMap.keys.length.sub(lastProcessedIndex) : 0; iterationsUntilProcessed = index.add(int256(processesUntilEndOfArray)); } } withdrawableDividends = withdrawableDividendOf(account); totalDividends = accumulativeDividendOf(account); lastClaimTime = lastClaimTimes[account]; nextClaimTime = lastClaimTime > 0 ? lastClaimTime.add(claimWait) : 0; secondsUntilAutoClaimAvailable = nextClaimTime > block.timestamp ? nextClaimTime.sub(block.timestamp) : 0; } function getAccountAtIndex(uint256 index) public view returns ( address, int256, int256, uint256, uint256, uint256, uint256, uint256) { if(index >= tokenHoldersMap.size()) { return (0x0000000000000000000000000000000000000000, -1, -1, 0, 0, 0, 0, 0); } address account = tokenHoldersMap.getKeyAtIndex(index); return getAccount(account); } function canAutoClaim(uint256 lastClaimTime) private view returns (bool) { if(lastClaimTime > block.timestamp) { return false; } return block.timestamp.sub(lastClaimTime) >= claimWait; } function setBalance(address payable account, uint256 newBalance) external onlyOwner { if(excludedFromDividends[account]) { return; } if(newBalance >= minimumTokenBalanceForDividends) { _setBalance(account, newBalance); tokenHoldersMap.set(account, newBalance); } else { _setBalance(account, 0); tokenHoldersMap.remove(account); } processAccount(account, true); } function process(uint256 gas) public returns (uint256, uint256, uint256) { uint256 numberOfTokenHolders = tokenHoldersMap.keys.length; if(numberOfTokenHolders == 0) { return (0, 0, lastProcessedIndex); } uint256 _lastProcessedIndex = lastProcessedIndex; uint256 gasUsed = 0; uint256 gasLeft = gasleft(); uint256 iterations = 0; uint256 claims = 0; while(gasUsed < gas && iterations < numberOfTokenHolders) { _lastProcessedIndex++; if(_lastProcessedIndex >= tokenHoldersMap.keys.length) { _lastProcessedIndex = 0; } address account = tokenHoldersMap.keys[_lastProcessedIndex]; if(canAutoClaim(lastClaimTimes[account])) { if(processAccount(payable(account), true)) { claims++; } } iterations++; uint256 newGasLeft = gasleft(); if(gasLeft > newGasLeft) { gasUsed = gasUsed.add(gasLeft.sub(newGasLeft)); } gasLeft = newGasLeft; } lastProcessedIndex = _lastProcessedIndex; return (iterations, claims, lastProcessedIndex); } function processAccount(address payable account, bool automatic) public onlyOwner returns (bool) { uint256 amount = _withdrawDividendOfUser(account); if(amount > 0) { lastClaimTimes[account] = block.timestamp; emit Claim(account, amount, automatic); return true; } return false; } }