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ERC-20
Staking
Overview
Max Total Supply
778,914,253.385698122425719859 YDF
Holders
2,565 (0.00%)
Market
Price
$0.00 @ 0.000000 ETH (-1.56%)
Onchain Market Cap
$425,801.27
Circulating Supply Market Cap
$511,605.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
106,090.483205933083005652 YDFValue
$58.00 ( ~0.0219072416707534 Eth) [0.0136%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
YDF
Compiler Version
v0.8.9+commit.e5eed63a
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
/****************************************************************************************************** Yieldification (YDF) Website: https://yieldification.com Twitter: https://twitter.com/yieldification Telegram: https://t.me/yieldification ******************************************************************************************************/ // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.9; import '@openzeppelin/contracts/token/ERC20/ERC20.sol'; import '@openzeppelin/contracts/access/Ownable.sol'; import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol'; import '@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol'; import './interfaces/IYDF.sol'; import './sYDF.sol'; import './slYDF.sol'; import './YDFVester.sol'; import './StakeRewards.sol'; contract YDF is IYDF, ERC20, Ownable { uint256 private constant EARLY_SELL_EXPIRATION = 90 days; uint256 private constant SET_AND_LOCK_TAXES = 30 days; uint256 private constant LAUNCH_MAX_TXN_PERIOD = 30 minutes; // at launch, a higher marketing+rewards tax will support initial capital generated // for hiring and paying for an initial marketing blitz. After 30 days the contract // reduces the marketing percent to 1%, which it can no longer be adjusted. uint256 public taxMarketingPerc = 300; // 3% uint256 public taxRewardsPerc = 200; // 2% uint256 public taxEarlyPerc = 1000; // 10% sYDF private _stakedYDF; slYDF private _stakedYDFLP; YDFVester private _vester; StakeRewards private _rewards; address public treasury; uint256 public launchBlock; uint256 public launchTime; mapping(address => bool) public isTaxExcluded; IUniswapV2Router02 public uniswapV2Router; address public uniswapV2Pair; mapping(address => bool) public mmPairs; // market making pairs // the following are used to track logic for the time-decaying sell tax. // buyTracker and sellTracker will be appended to each buy/sell respectively, // where as lastBuyTimestamp is reset each buy. As long as the buyTracker // exceeds the sellTracker, the decaying sell tax will reduce continuously // against the lastBuyTimestamp, but at the moment the user sells and // the sellTracker exceeds the buyTracker, all are reset which will mean // the sell tax will be no longer decaying for this wallet until the wallet // buys again and everything starts from scratch again. // // IMPORTANT: the time-decay tax is measured against lastBuyTimestamp, meaning // each time a wallet buys, their time decay is reset back to the beginning. mapping(address => uint256) public buyTracker; mapping(address => uint256) public lastBuyTimestamp; mapping(address => uint256) public sellTracker; mapping(address => bool) private _isBot; bool private _swapping = false; bool private _swapEnabled = true; modifier onlyStake() { require( address(_stakedYDF) == _msgSender() || address(_stakedYDFLP) == _msgSender(), 'not a staking contract' ); _; } modifier onlyVest() { require(address(_vester) == _msgSender(), 'not vesting contract'); _; } modifier swapLock() { _swapping = true; _; _swapping = false; } event SetMarketMakingPair(address indexed pair, bool isPair); event SetTreasury(address indexed newTreasury); event StakeMintToVester(uint256 amount); event Burn(address indexed user, uint256 amount); event ResetBuySellMetadata(address indexed user); event SetTaxExclusion(address indexed user, bool isExcluded); constructor() ERC20('Yieldification', 'YDF') { _mint(msg.sender, 696_900_000 * 10**18); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02( 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D ); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair( address(this), _uniswapV2Router.WETH() ); _vester = new YDFVester(address(this)); _rewards = new StakeRewards(address(this), address(_uniswapV2Router)); _stakedYDF = new sYDF( address(this), address(_vester), address(_rewards), 'https://api.yieldification.com/sydf/metadata/' ); _stakedYDF.setPaymentAddress(msg.sender); _stakedYDF.setRoyaltyAddress(msg.sender); _stakedYDF.transferOwnership(msg.sender); _stakedYDFLP = new slYDF( uniswapV2Pair, address(_uniswapV2Router), address(this), address(_vester), address(_rewards), 'https://api.yieldification.com/slydf/metadata/' ); _stakedYDFLP.setPaymentAddress(msg.sender); _stakedYDFLP.setRoyaltyAddress(msg.sender); _stakedYDFLP.transferOwnership(msg.sender); _vester.addStakingContract(address(_stakedYDF)); _vester.addStakingContract(address(_stakedYDFLP)); _vester.transferOwnership(msg.sender); _rewards.setsYDF(address(_stakedYDF)); _rewards.setslYDF(address(_stakedYDFLP)); _rewards.transferOwnership(msg.sender); mmPairs[uniswapV2Pair] = true; uniswapV2Router = _uniswapV2Router; treasury = msg.sender; isTaxExcluded[address(this)] = true; isTaxExcluded[address(_stakedYDFLP)] = true; // allow zapping without taxes isTaxExcluded[msg.sender] = true; } function _transfer( address sender, address recipient, uint256 amount ) internal virtual override { bool _isBuy = mmPairs[sender] && recipient != address(uniswapV2Router); bool _isSell = mmPairs[recipient]; if (_isBuy) { require(launchBlock > 0, 'not launched yet'); buyTracker[recipient] += amount; lastBuyTimestamp[recipient] = block.timestamp; if (block.number <= launchBlock + 2) { _isBot[recipient] = true; } else if (block.timestamp < launchTime + LAUNCH_MAX_TXN_PERIOD) { require( balanceOf(recipient) + amount <= (totalSupply() * 1) / 100, 'at launch max wallet is up to 1% supply' ); } } else { require(!_isBot[recipient], 'sorry bot'); require(!_isBot[sender], 'sorry bot'); require(!_isBot[_msgSender()], 'sorry bot'); } uint256 contractBalance = balanceOf(address(this)); uint256 _swapAmount = (balanceOf(uniswapV2Pair) * 5) / 1000; // 0.5% pair balance bool _overMinimum = contractBalance >= _swapAmount && _swapAmount > 0; if (!_swapping && _swapEnabled && _overMinimum && sender != uniswapV2Pair) { _swapForETH(_swapAmount); } uint256 tax = 0; if (_isSell && !(isTaxExcluded[sender] || isTaxExcluded[recipient])) { // at the expiration date we will reset taxes which will // set them forever in the contract to no longer be changed if ( block.timestamp > launchTime + SET_AND_LOCK_TAXES && taxMarketingPerc > 100 ) { taxMarketingPerc = 100; // 1% taxRewardsPerc = 100; // 1% taxEarlyPerc = 1300; // 13% } uint256 _taxEarlyPerc = getSellEarlyTax(sender, amount, taxEarlyPerc); uint256 _totalTax = taxMarketingPerc + taxRewardsPerc + _taxEarlyPerc; tax = (amount * _totalTax) / 10000; if (tax > 0) { uint256 _taxAmountETH = (tax * (taxMarketingPerc + taxRewardsPerc)) / _totalTax; super._transfer(sender, address(this), _taxAmountETH); if (_taxEarlyPerc > 0) { _burnWithEvent(sender, tax - _taxAmountETH); } } sellTracker[sender] += amount; } super._transfer(sender, recipient, amount - tax); // if the sell tracker equals or exceeds the amount of tokens bought, // reset all variables here which resets the time-decaying sell tax logic. if (sellTracker[sender] >= buyTracker[sender]) { _resetBuySellMetadata(sender); } // handles transferring to a fresh wallet or wallet that hasn't bought YDF before if (lastBuyTimestamp[recipient] == 0) { _resetBuySellMetadata(recipient); } } function _swapForETH(uint256 _amountToSwap) private swapLock { uint256 _balBefore = address(this).balance; address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), _amountToSwap); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( _amountToSwap, 0, path, address(this), block.timestamp ); uint256 _balToProcess = address(this).balance - _balBefore; if (_balToProcess > 0) { uint256 _totalTaxETH = taxMarketingPerc + taxRewardsPerc; // send marketing ETH uint256 _marketingETH = (_balToProcess * taxMarketingPerc) / _totalTaxETH; address _treasury = treasury == address(0) ? owner() : treasury; if (_marketingETH > 0) { payable(_treasury).call{ value: _marketingETH }(''); } // deposit rewards into rewards pool uint256 _rewardsETH = _balToProcess - _marketingETH; if (_rewardsETH > 0) { if (_rewards.totalSharesDeposited() > 0) { _rewards.depositRewards{ value: _rewardsETH }(); } else { payable(_treasury).call{ value: _rewardsETH }(''); } } } } function getSellEarlyTax( address _seller, uint256 _sellAmount, uint256 _tax ) public view returns (uint256) { if (lastBuyTimestamp[_seller] == 0) { return _tax; } if (sellTracker[_seller] + _sellAmount > buyTracker[_seller]) { return _tax; } if (block.timestamp > getSellEarlyExpiration(_seller)) { return 0; } uint256 _secondsAfterBuy = block.timestamp - lastBuyTimestamp[_seller]; return (_tax * (EARLY_SELL_EXPIRATION - _secondsAfterBuy)) / EARLY_SELL_EXPIRATION; } function getSellEarlyExpiration(address _seller) public view returns (uint256) { return lastBuyTimestamp[_seller] == 0 ? 0 : lastBuyTimestamp[_seller] + EARLY_SELL_EXPIRATION; } function getStakedYDF() external view returns (address) { return address(_stakedYDF); } function getStakedYDFLP() external view returns (address) { return address(_stakedYDFLP); } function getVester() external view returns (address) { return address(_vester); } function getRewards() external view returns (address) { return address(_rewards); } function addToBuyTracker(address _user, uint256 _amount) external onlyVest { buyTracker[_user] += _amount; // if this user hasn't bought before, but is vesting from unstaking an // acquired stake NFT, go ahead and set their buy timetstamp here from now if (lastBuyTimestamp[_user] == 0) { lastBuyTimestamp[_user] = block.timestamp; } } function resetBuySellMetadata() external { _resetBuySellMetadata(msg.sender); emit ResetBuySellMetadata(msg.sender); } function _resetBuySellMetadata(address _user) internal { buyTracker[_user] = balanceOf(_user); lastBuyTimestamp[_user] = block.timestamp; sellTracker[_user] = 0; } function stakeMintToVester(uint256 _amount) external override onlyStake { _mint(address(_vester), _amount); emit StakeMintToVester(_amount); } function burn(uint256 _amount) external { _burnWithEvent(msg.sender, _amount); } function _burnWithEvent(address _user, uint256 _amount) internal { _burn(_user, _amount); emit Burn(_user, _amount); } function setIsTaxExcluded(address _wallet, bool _isExcluded) external onlyOwner { isTaxExcluded[_wallet] = _isExcluded; emit SetTaxExclusion(_wallet, _isExcluded); } function setMarketMakingPair(address _addy, bool _isPair) external onlyOwner { require(_addy != uniswapV2Pair, 'cannot change state of built-in pair'); mmPairs[_addy] = _isPair; emit SetMarketMakingPair(_addy, _isPair); } function setSwapEnabled(bool _enabled) external onlyOwner { _swapEnabled = _enabled; } function setTreasury(address _treasury) external onlyOwner { treasury = _treasury; emit SetTreasury(_treasury); } function startTrading() external onlyOwner { require(launchBlock == 0, 'already launched'); launchBlock = block.number; launchTime = block.timestamp; } function withdrawETH() external onlyOwner { payable(owner()).call{ value: address(this).balance }(''); } receive() external payable {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { 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_) { _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: * * - `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 `from` to `to`. * * This 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: * * - `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"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, 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 += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(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); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(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 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); } } } /** * @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 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 {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @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 Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { 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); } }
pragma solidity >=0.5.0; 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; import './IUniswapV2Router01.sol'; 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; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import '@openzeppelin/contracts/interfaces/IERC20.sol'; /** * @dev YDF token interface */ interface IYDF is IERC20 { function addToBuyTracker(address _user, uint256 _amount) external; function burn(uint256 _amount) external; function stakeMintToVester(uint256 _amount) external; }
/****************************************************************************************************** Staked Yieldification (sYDF) Website: https://yieldification.com Twitter: https://twitter.com/yieldification Telegram: https://t.me/yieldification ******************************************************************************************************/ // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.9; import './YDFStake.sol'; contract sYDF is YDFStake { constructor( address _ydf, address _vester, address _rewards, string memory _baseTokenURI ) YDFStake( 'Staked Yieldification', 'sYDF', _ydf, _ydf, _vester, _rewards, _baseTokenURI ) { _addAprLockOption(2500, 0); _addAprLockOption(5000, 14 days); _addAprLockOption(10000, 120 days); _addAprLockOption(15000, 240 days); _addAprLockOption(20000, 360 days); } }
/****************************************************************************************************** Staked Yieldification Liquidity (slYDF) Website: https://yieldification.com Twitter: https://twitter.com/yieldification Telegram: https://t.me/yieldification ******************************************************************************************************/ // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.9; import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol'; import '@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol'; import './YDFStake.sol'; contract slYDF is YDFStake { address private _uniswapRouter; uint8 public zapBuySlippage = 2; // 2% uint8 public zapSellSlippage = 25; // 25% event StakeLiquidity(address indexed user, uint256 amountUniLPStaked); event ZapETHOnly( address indexed user, uint256 amountETH, uint256 amountUniLPStaked ); event ZapYDFOnly( address indexed user, uint256 amountYDF, uint256 amountUniLPStaked ); event ZapETHAndYDF( address indexed user, uint256 amountETH, uint256 amountYDF, uint256 amountUniLPStaked ); constructor( address _pair, address _router, address _ydf, address _vester, address _rewards, string memory _baseTokenURI ) YDFStake( 'Staked Yieldification Liquidity', 'slYDF', _pair, _ydf, _vester, _rewards, _baseTokenURI ) { _uniswapRouter = _router; _addAprLockOption(5000, 0); _addAprLockOption(7500, 14 days); _addAprLockOption(15000, 120 days); _addAprLockOption(22500, 240 days); _addAprLockOption(30000, 360 days); } function stake(uint256 _amount, uint256 _lockOptIndex) external override { _stakeLp(msg.sender, _amount, _lockOptIndex, true); emit StakeLiquidity(msg.sender, _amount); } function zapAndStakeETHOnly(uint256 _lockOptIndex) external payable { require(msg.value > 0, 'need to provide ETH to zap'); uint256 _ethBalBefore = address(this).balance - msg.value; uint256 _ydfBalanceBefore = ydf.balanceOf(address(this)); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_uniswapRouter); // swap half the ETH for YDF uint256 _tokensToReceiveNoSlip = _getTokensToReceiveOnBuyNoSlippage( msg.value / 2 ); address[] memory path = new address[](2); path[0] = _uniswapV2Router.WETH(); path[1] = address(ydf); _uniswapV2Router.swapExactETHForTokens{ value: msg.value / 2 }( (_tokensToReceiveNoSlip * (100 - zapBuySlippage)) / 100, // handle slippage path, address(this), block.timestamp ); uint256 _lpBalBefore = stakeToken.balanceOf(address(this)); _addLp(ydf.balanceOf(address(this)) - _ydfBalanceBefore, msg.value / 2); uint256 _lpBalanceToStake = stakeToken.balanceOf(address(this)) - _lpBalBefore; _stakeLp(msg.sender, _lpBalanceToStake, _lockOptIndex, false); _returnExcessETH(msg.sender, _ethBalBefore); _returnExcessYDF(msg.sender, _ydfBalanceBefore); emit ZapETHOnly(msg.sender, msg.value, _lpBalanceToStake); } function zapAndStakeETHAndYDF(uint256 _amountYDF, uint256 _lockOptIndex) external payable { require(msg.value > 0, 'need to provide ETH to zap'); uint256 _ethBalBefore = address(this).balance - msg.value; uint256 _ydfBalBefore = ydf.balanceOf(address(this)); ydf.transferFrom(msg.sender, address(this), _amountYDF); uint256 _ydfToProcess = ydf.balanceOf(address(this)) - _ydfBalBefore; uint256 _lpBalBefore = stakeToken.balanceOf(address(this)); _addLp(_ydfToProcess, msg.value); uint256 _lpBalanceToStake = stakeToken.balanceOf(address(this)) - _lpBalBefore; _stakeLp(msg.sender, _lpBalanceToStake, _lockOptIndex, false); _returnExcessETH(msg.sender, _ethBalBefore); _returnExcessYDF(msg.sender, _ydfBalBefore); emit ZapETHAndYDF(msg.sender, msg.value, _amountYDF, _lpBalanceToStake); } function zapAndStakeYDFOnly(uint256 _amountYDF, uint256 _lockOptIndex) external { require( _aprLockOptions[_lockOptIndex].lockTime > 0, 'cannot zap and stake YDF only without lockup period' ); uint256 _ethBalBefore = address(this).balance; uint256 _ydfBalBefore = ydf.balanceOf(address(this)); ydf.transferFrom(msg.sender, address(this), _amountYDF); uint256 _ydfToProcess = ydf.balanceOf(address(this)) - _ydfBalBefore; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_uniswapRouter); // swap half the YDF for ETH uint256 _ethToReceiveNoSlip = _getETHToReceiveOnSellNoSlippage( _ydfToProcess / 2 ); address[] memory path = new address[](2); path[0] = address(ydf); path[1] = _uniswapV2Router.WETH(); ydf.approve(address(_uniswapV2Router), _ydfToProcess / 2); _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( _ydfToProcess / 2, (_ethToReceiveNoSlip * (100 - zapSellSlippage)) / 100, // handle slippage path, address(this), block.timestamp ); uint256 _lpBalBefore = stakeToken.balanceOf(address(this)); _addLp(_ydfToProcess / 2, address(this).balance - _ethBalBefore); uint256 _lpBalanceToStake = stakeToken.balanceOf(address(this)) - _lpBalBefore; _stakeLp(msg.sender, _lpBalanceToStake, _lockOptIndex, false); _returnExcessETH(msg.sender, _ethBalBefore); _returnExcessYDF(msg.sender, _ydfBalBefore); emit ZapYDFOnly(msg.sender, _amountYDF, _lpBalanceToStake); } function _addLp(uint256 tokenAmount, uint256 ethAmount) private { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_uniswapRouter); ydf.approve(address(_uniswapV2Router), tokenAmount); _uniswapV2Router.addLiquidityETH{ value: ethAmount }( address(ydf), tokenAmount, 0, 0, address(this), block.timestamp ); } function _getTokensToReceiveOnBuyNoSlippage(uint256 _amountETH) internal view returns (uint256) { IUniswapV2Pair pair = IUniswapV2Pair(address(stakeToken)); (uint112 _r0, uint112 _r1, ) = pair.getReserves(); if (pair.token0() == IUniswapV2Router02(_uniswapRouter).WETH()) { return (_amountETH * _r1) / _r0; } else { return (_amountETH * _r0) / _r1; } } function _getETHToReceiveOnSellNoSlippage(uint256 _amountYDF) internal view returns (uint256) { IUniswapV2Pair pair = IUniswapV2Pair(address(stakeToken)); (uint112 _r0, uint112 _r1, ) = pair.getReserves(); if (pair.token0() == IUniswapV2Router02(_uniswapRouter).WETH()) { return (_amountYDF * _r0) / _r1; } else { return (_amountYDF * _r1) / _r0; } } function _stakeLp( address _user, uint256 _amountStakeToken, uint256 _lockOptIndex, bool _transferStakeToken ) internal { IUniswapV2Pair pair = IUniswapV2Pair(address(stakeToken)); _amountStakeToken = _amountStakeToken == 0 ? pair.balanceOf(_user) : _amountStakeToken; (uint112 res0, uint112 res1, ) = pair.getReserves(); address t0 = pair.token0(); uint256 ydfReserves = t0 == address(ydf) ? res0 : res1; uint256 singleSideTokenAmount = (_amountStakeToken * ydfReserves) / stakeToken.totalSupply(); // need to multiply the earned amount by 2 since when providing LP // the user provides both sides of the pair, so we account for both // sides of the pair by multiplying by 2 _stake( _user, _amountStakeToken, singleSideTokenAmount * 2, _lockOptIndex, _transferStakeToken ); } function _returnExcessETH(address _user, uint256 _initialBal) internal { if (address(this).balance > _initialBal) { payable(_user).call{ value: address(this).balance - _initialBal }(''); require(address(this).balance >= _initialBal, 'took too much'); } } function _returnExcessYDF(address _user, uint256 _initialBal) internal { uint256 _currentBal = ydf.balanceOf(address(this)); if (_currentBal > _initialBal) { ydf.transfer(_user, _currentBal - _initialBal); require(ydf.balanceOf(address(this)) >= _initialBal, 'took too much'); } } function setZapBuySlippage(uint8 _slippage) external onlyOwner { require(_slippage <= 100, 'cannot be more than 100% slippage'); zapBuySlippage = _slippage; } function setZapSellSlippage(uint8 _slippage) external onlyOwner { require(_slippage <= 100, 'cannot be more than 100% slippage'); zapSellSlippage = _slippage; } receive() external payable {} }
/****************************************************************************************************** Yieldification Vesting Contract Website: https://yieldification.com Twitter: https://twitter.com/yieldification Telegram: https://t.me/yieldification ******************************************************************************************************/ // SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import '@openzeppelin/contracts/access/Ownable.sol'; import './interfaces/IYDF.sol'; contract YDFVester is Ownable { IYDF private _ydf; uint256 public fullyVestedPeriod = 90 days; uint256 public withdrawsPerPeriod = 10; struct TokenVest { uint256 start; uint256 end; uint256 totalWithdraws; uint256 withdrawsCompleted; uint256 amount; } mapping(address => TokenVest[]) public vests; address[] public stakeContracts; event CreateVest(address indexed user, uint256 amount); event Withdraw(address indexed user, uint256 index, uint256 amountWithdrawn); modifier onlyStake() { bool isStake; for (uint256 i = 0; i < stakeContracts.length; i++) { if (msg.sender == stakeContracts[i]) { isStake = true; break; } } require(isStake, 'not a staking contract'); _; } constructor(address _token) { _ydf = IYDF(_token); } // we expect the staking contract (re: the owner) to transfer tokens to // this contract, so no need to transferFrom anywhere function createVest(address _user, uint256 _amount) external onlyStake { vests[_user].push( TokenVest({ start: block.timestamp, end: block.timestamp + fullyVestedPeriod, totalWithdraws: withdrawsPerPeriod, withdrawsCompleted: 0, amount: _amount }) ); emit CreateVest(_user, _amount); } function withdraw(uint256 _index) external { address _user = msg.sender; TokenVest storage _vest = vests[_user][_index]; require(_vest.amount > 0, 'vest does not exist'); require( _vest.withdrawsCompleted < _vest.totalWithdraws, 'already withdrew all tokens' ); uint256 _tokensPerWithdrawPeriod = _vest.amount / _vest.totalWithdraws; uint256 _withdrawsAllowed = getWithdrawsAllowed(_user, _index); // make sure the calculated allowed amount doesn't exceed total amount for vest _withdrawsAllowed = _withdrawsAllowed > _vest.totalWithdraws ? _vest.totalWithdraws : _withdrawsAllowed; require( _vest.withdrawsCompleted < _withdrawsAllowed, 'currently vesting, please wait for next withdrawable time period' ); uint256 _withdrawsToComplete = _withdrawsAllowed - _vest.withdrawsCompleted; _vest.withdrawsCompleted = _withdrawsAllowed; _ydf.transfer(_user, _tokensPerWithdrawPeriod * _withdrawsToComplete); _ydf.addToBuyTracker( _user, _tokensPerWithdrawPeriod * _withdrawsToComplete ); // clean up/remove vest entry if it's completed if (_vest.withdrawsCompleted == _vest.totalWithdraws) { vests[_user][_index] = vests[_user][vests[_user].length - 1]; vests[_user].pop(); } emit Withdraw( _user, _index, _tokensPerWithdrawPeriod * _withdrawsToComplete ); } function getWithdrawsAllowed(address _user, uint256 _index) public view returns (uint256) { TokenVest memory _vest = vests[_user][_index]; uint256 _secondsPerWithdrawPeriod = (_vest.end - _vest.start) / _vest.totalWithdraws; return (block.timestamp - _vest.start) / _secondsPerWithdrawPeriod; } function getUserVests(address _user) external view returns (TokenVest[] memory) { return vests[_user]; } function getYDF() external view returns (address) { return address(_ydf); } function addStakingContract(address _contract) external onlyOwner { stakeContracts.push(_contract); } }
/****************************************************************************************************** Yieldification Staking Rewards Website: https://yieldification.com Twitter: https://twitter.com/yieldification Telegram: https://t.me/yieldification ******************************************************************************************************/ // SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import '@openzeppelin/contracts/access/Ownable.sol'; import '@openzeppelin/contracts/token/ERC721/IERC721.sol'; import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol'; import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol'; import '@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol'; import './interfaces/IStakeRewards.sol'; contract StakeRewards is IStakeRewards, Ownable { address public ydf; IERC721 private sYDF; IERC721 private slYDF; IUniswapV2Router02 private uniswapV2Router; uint256 public compoundBuySlippage = 2; uint256 public totalStakedUsers; uint256 public totalSharesDeposited; struct Share { uint256 amount; uint256 stakedTime; } struct Reward { uint256 totalExcluded; uint256 totalRealised; } mapping(address => Share) private shares; mapping(address => Reward) public rewards; uint256 public totalRewards; uint256 public totalDistributed; uint256 public rewardsPerShare; uint256 private constant ACC_FACTOR = 10**36; event AddShares(address indexed user, uint256 amount); event RemoveShares(address indexed user, uint256 amount); event ClaimReward(address user); event DistributeReward(address indexed user, uint256 amount); event DepositRewards(address indexed user, uint256 amountTokens); modifier onlyToken() { require( msg.sender == address(sYDF) || msg.sender == address(slYDF), 'must be stake token' ); _; } constructor(address _ydf, address _dexRouter) { ydf = _ydf; uniswapV2Router = IUniswapV2Router02(_dexRouter); } function setShare( address shareholder, uint256 balanceUpdate, bool isRemoving ) external override onlyToken { if (isRemoving) { _removeShares(shareholder, balanceUpdate); emit RemoveShares(shareholder, balanceUpdate); } else { _addShares(shareholder, balanceUpdate); emit AddShares(shareholder, balanceUpdate); } } function _addShares(address shareholder, uint256 amount) private { if (shares[shareholder].amount > 0) { _distributeReward(shareholder, false); } uint256 sharesBefore = shares[shareholder].amount; totalSharesDeposited += amount; shares[shareholder].amount += amount; shares[shareholder].stakedTime = block.timestamp; if (sharesBefore == 0 && shares[shareholder].amount > 0) { totalStakedUsers++; } rewards[shareholder].totalExcluded = getCumulativeRewards( shares[shareholder].amount ); } function _removeShares(address shareholder, uint256 amount) private { require( shares[shareholder].amount > 0 && (amount == 0 || amount <= shares[shareholder].amount), 'you can only unstake if you have some staked' ); _distributeReward(shareholder, false); uint256 removeAmount = amount == 0 ? shares[shareholder].amount : amount; totalSharesDeposited -= removeAmount; shares[shareholder].amount -= removeAmount; rewards[shareholder].totalExcluded = getCumulativeRewards( shares[shareholder].amount ); } function depositRewards() external payable override { uint256 _amount = msg.value; require(_amount > 0, 'must provide ETH to deposit for rewards'); require(totalSharesDeposited > 0, 'must be shares to distribute rewards'); totalRewards += _amount; rewardsPerShare += (ACC_FACTOR * _amount) / totalSharesDeposited; emit DepositRewards(msg.sender, _amount); } function _distributeReward(address shareholder, bool compound) internal { if (shares[shareholder].amount == 0) { return; } uint256 amount = getUnpaid(shareholder); rewards[shareholder].totalRealised += amount; rewards[shareholder].totalExcluded = getCumulativeRewards( shares[shareholder].amount ); if (amount > 0) { totalDistributed += amount; uint256 _balBefore = address(this).balance; if (compound) { uint256 _tokensToReceiveNoSlip = _getTokensToReceiveOnBuyNoSlippage( amount ); address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = ydf; uniswapV2Router.swapExactETHForTokens{ value: amount }( (_tokensToReceiveNoSlip * (100 - compoundBuySlippage)) / 100, // handle slippage path, shareholder, block.timestamp ); } else { payable(shareholder).call{ value: amount }(''); } require(address(this).balance >= _balBefore - amount, 'took too much'); emit DistributeReward(shareholder, amount); } } function _getTokensToReceiveOnBuyNoSlippage(uint256 _amountETH) internal view returns (uint256) { address pairAddy = IUniswapV2Factory(uniswapV2Router.factory()).getPair( uniswapV2Router.WETH(), ydf ); IUniswapV2Pair pair = IUniswapV2Pair(pairAddy); (uint112 _r0, uint112 _r1, ) = pair.getReserves(); if (pair.token0() == uniswapV2Router.WETH()) { return (_amountETH * _r1) / _r0; } else { return (_amountETH * _r0) / _r1; } } function claimReward(bool _compound) external override { _distributeReward(msg.sender, _compound); emit ClaimReward(msg.sender); } // returns the unpaid rewards function getUnpaid(address shareholder) public view returns (uint256) { if (shares[shareholder].amount == 0) { return 0; } uint256 earnedRewards = getCumulativeRewards(shares[shareholder].amount); uint256 rewardsExcluded = rewards[shareholder].totalExcluded; if (earnedRewards <= rewardsExcluded) { return 0; } return earnedRewards - rewardsExcluded; } function getCumulativeRewards(uint256 share) internal view returns (uint256) { return (share * rewardsPerShare) / ACC_FACTOR; } function getShares(address user) external view override returns (uint256) { return shares[user].amount; } function getsYDF() external view returns (address) { return address(sYDF); } function getslYDF() external view returns (address) { return address(slYDF); } function setCompoundBuySlippage(uint8 _slippage) external onlyOwner { require(_slippage <= 100, 'cannot be more than 100% slippage'); compoundBuySlippage = _slippage; } function setsYDF(address _sYDF) external onlyOwner { sYDF = IERC721(_sYDF); } function setslYDF(address _slYDF) external onlyOwner { slYDF = IERC721(_slYDF); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @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); }
// SPDX-License-Identifier: MIT // 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; } }
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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol) pragma solidity ^0.8.0; import "../token/ERC20/IERC20.sol";
/****************************************************************************************************** YDFStake Inheritable Contract for staking NFTs Website: https://yieldification.com Twitter: https://twitter.com/yieldification Telegram: https://t.me/yieldification ******************************************************************************************************/ // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.9; import '@openzeppelin/contracts/access/Ownable.sol'; import '@openzeppelin/contracts/interfaces/IERC20.sol'; import '@openzeppelin/contracts/token/ERC721/ERC721.sol'; import '@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol'; import '@openzeppelin/contracts/utils/Counters.sol'; import './interfaces/IYDF.sol'; import './interfaces/IYDFVester.sol'; import './interfaces/IStakeRewards.sol'; contract YDFStake is ERC721Enumerable, Ownable { using Strings for uint256; using Counters for Counters.Counter; uint256 private constant ONE_YEAR = 365 days; uint256 private constant ONE_WEEK = 7 days; uint16 private constant PERCENT_DENOMENATOR = 10000; IERC20 internal stakeToken; IYDF internal ydf; IYDFVester internal vester; IStakeRewards internal rewards; struct AprLock { uint16 apr; uint256 lockTime; } AprLock[] internal _aprLockOptions; struct Stake { uint256 created; uint256 amountStaked; uint256 amountYDFBaseEarn; uint16 apr; uint256 lockTime; } // tokenId => Stake mapping(uint256 => Stake) public stakes; // tokenId => amount mapping(uint256 => uint256) public yieldClaimed; // tokenId => timestamp mapping(uint256 => uint256) public lastClaim; // tokenId => boolean mapping(uint256 => bool) public isBlacklisted; Counters.Counter internal _ids; string private baseTokenURI; // baseTokenURI can point to IPFS folder like https://ipfs.io/ipfs/{cid}/ while address public paymentAddress; address public royaltyAddress; // Royalties basis points (percentage using 2 decimals - 1000 = 100, 500 = 50, 0 = 0) uint256 private royaltyBasisPoints = 50; // 5% // array of all the NFT token IDs owned by a user mapping(address => uint256[]) public allUserOwned; // the index in the token ID array at allUserOwned to save gas on operations mapping(uint256 => uint256) public ownedIndex; mapping(uint256 => uint256) public tokenMintedAt; mapping(uint256 => uint256) public tokenLastTransferred; event StakeTokens( address indexed user, uint256 indexed tokenId, uint256 amountStaked, uint256 lockOptionIndex ); event UnstakeTokens(address indexed user, uint256 indexed tokenId); event SetAnnualApr(uint256 indexed newApr); event SetPaymentAddress(address indexed user); event SetRoyaltyAddress(address indexed user); event SetRoyaltyBasisPoints(uint256 indexed _royaltyBasisPoints); event SetBaseTokenURI(string indexed newUri); event AddAprLockOption(uint16 indexed apr, uint256 lockTime); event RemoveAprLockOption( uint256 indexed index, uint16 indexed apr, uint256 lockTime ); event UpdateAprLockOption( uint256 indexed index, uint16 indexed oldApr, uint256 oldLockTime, uint16 newApr, uint256 newLockTime ); event SetTokenBlacklist(uint256 indexed tokenId, bool isBlacklisted); constructor( string memory _name, string memory _symbol, address _stakeToken, address _ydf, address _vester, address _rewards, string memory _baseTokenURI ) ERC721(_name, _symbol) { stakeToken = IERC20(_stakeToken); ydf = IYDF(_ydf); vester = IYDFVester(_vester); rewards = IStakeRewards(_rewards); baseTokenURI = _baseTokenURI; } function stake(uint256 _amount, uint256 _lockOptIndex) external virtual { _stake(msg.sender, _amount, _amount, _lockOptIndex, true); } function _stake( address _user, uint256 _amountStaked, uint256 _amountYDFBaseEarn, uint256 _lockOptIndex, bool _transferStakeToken ) internal { require(_lockOptIndex < _aprLockOptions.length, 'invalid lock option'); _amountStaked = _amountStaked == 0 ? stakeToken.balanceOf(_user) : _amountStaked; _amountYDFBaseEarn = _amountYDFBaseEarn == 0 ? _amountStaked : _amountYDFBaseEarn; require( _amountStaked > 0 && _amountYDFBaseEarn > 0, 'must stake and be earning at least some tokens' ); if (_transferStakeToken) { stakeToken.transferFrom(_user, address(this), _amountStaked); } _ids.increment(); stakes[_ids.current()] = Stake({ created: block.timestamp, amountStaked: _amountStaked, amountYDFBaseEarn: _amountYDFBaseEarn, apr: _aprLockOptions[_lockOptIndex].apr, lockTime: _aprLockOptions[_lockOptIndex].lockTime }); _safeMint(_user, _ids.current()); tokenMintedAt[_ids.current()] = block.timestamp; emit StakeTokens(_user, _ids.current(), _amountStaked, _lockOptIndex); } function unstake(uint256 _tokenId) public { address _user = msg.sender; Stake memory _tokenStake = stakes[_tokenId]; require( _user == ownerOf(_tokenId), 'only the owner of the staked tokens can unstake' ); bool _isUnstakingEarly = block.timestamp < _tokenStake.created + _tokenStake.lockTime; // send back original tokens staked // if unstaking early based on lock period, only get a portion back if (_isUnstakingEarly) { uint256 _timeStaked = block.timestamp - _tokenStake.created; uint256 _earnedAmount = (_tokenStake.amountStaked * _timeStaked) / _tokenStake.lockTime; stakeToken.transfer(_user, _earnedAmount); if (address(stakeToken) == address(ydf)) { ydf.burn(_tokenStake.amountStaked - _earnedAmount); } else { stakeToken.transfer(owner(), _tokenStake.amountStaked - _earnedAmount); } } else { stakeToken.transfer(_user, _tokenStake.amountStaked); } // check and create new vest if yield available to be claimed uint256 _totalEarnedAmount = getTotalEarnedAmount(_tokenId); if (_totalEarnedAmount > yieldClaimed[_tokenId]) { _createVestAndMint(_user, _totalEarnedAmount - yieldClaimed[_tokenId]); } // this NFT is useless after the user unstakes _burn(_tokenId); emit UnstakeTokens(_user, _tokenId); } function unstakeMulti(uint256[] memory _tokenIds) external { for (uint256 i = 0; i < _tokenIds.length; i++) { unstake(_tokenIds[i]); } } function claimAndVestRewards(uint256 _tokenId) public { require(!isBlacklisted[_tokenId], 'blacklisted NFT'); // user can only claim and vest rewards up to once a week require(block.timestamp > lastClaim[_tokenId] + ONE_WEEK); lastClaim[_tokenId] = block.timestamp; uint256 _totalEarnedAmount = getTotalEarnedAmount(_tokenId); require( _totalEarnedAmount > yieldClaimed[_tokenId], 'must have some yield to claim' ); _createVestAndMint( ownerOf(_tokenId), _totalEarnedAmount - yieldClaimed[_tokenId] ); yieldClaimed[_tokenId] = _totalEarnedAmount; } function claimAndVestRewardsMulti(uint256[] memory _tokenIds) external { for (uint256 i = 0; i < _tokenIds.length; i++) { claimAndVestRewards(_tokenIds[i]); } } function _createVestAndMint(address _user, uint256 _amount) internal { // store metadata for earned tokens in vesting contract for user who is unstaking vester.createVest(_user, _amount); // mint earned tokens to vesting contract ydf.stakeMintToVester(_amount); } // Support royalty info - See {EIP-2981}: https://eips.ethereum.org/EIPS/eip-2981 function royaltyInfo(uint256, uint256 _salePrice) external view returns (address receiver, uint256 royaltyAmount) { return (royaltyAddress, (_salePrice * royaltyBasisPoints) / 1000); } function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) { require(_exists(_tokenId), 'token does not exist'); return string(abi.encodePacked(_baseURI(), _tokenId.toString(), '.json')); } // Contract metadata URI - Support for OpenSea: https://docs.opensea.io/docs/contract-level-metadata function contractURI() public view returns (string memory) { return string(abi.encodePacked(_baseURI(), 'contract.json')); } // Override supportsInterface - See {IERC165-supportsInterface} function supportsInterface(bytes4 _interfaceId) public view virtual override(ERC721Enumerable) returns (bool) { return super.supportsInterface(_interfaceId); } function getLastMintedTokenId() external view returns (uint256) { return _ids.current(); } function isTokenMinted(uint256 _tokenId) external view returns (bool) { return _exists(_tokenId); } function setPaymentAddress(address _address) external onlyOwner { paymentAddress = _address; emit SetPaymentAddress(_address); } function setRoyaltyAddress(address _address) external onlyOwner { royaltyAddress = _address; emit SetRoyaltyAddress(_address); } function setRoyaltyBasisPoints(uint256 _points) external onlyOwner { royaltyBasisPoints = _points; emit SetRoyaltyBasisPoints(_points); } function setBaseURI(string memory _uri) external onlyOwner { baseTokenURI = _uri; emit SetBaseTokenURI(_uri); } function getAllUserOwned(address _user) external view returns (uint256[] memory) { return allUserOwned[_user]; } function getTotalEarnedAmount(uint256 _tokenId) public view returns (uint256) { Stake memory _tokenStake = stakes[_tokenId]; uint256 _secondsStaked = block.timestamp - _tokenStake.created; return (_tokenStake.amountYDFBaseEarn * _tokenStake.apr * _secondsStaked) / PERCENT_DENOMENATOR / ONE_YEAR; } function getAllLockOptions() external view returns (AprLock[] memory) { return _aprLockOptions; } function addAprLockOption(uint16 _apr, uint256 _lockTime) external onlyOwner { _addAprLockOption(_apr, _lockTime); emit AddAprLockOption(_apr, _lockTime); } function _addAprLockOption(uint16 _apr, uint256 _lockTime) internal { _aprLockOptions.push(AprLock({ apr: _apr, lockTime: _lockTime })); } function removeAprLockOption(uint256 _index) external onlyOwner { AprLock memory _option = _aprLockOptions[_index]; _aprLockOptions[_index] = _aprLockOptions[_aprLockOptions.length - 1]; _aprLockOptions.pop(); emit RemoveAprLockOption(_index, _option.apr, _option.lockTime); } function updateAprLockOption( uint256 _index, uint16 _apr, uint256 _lockTime ) external onlyOwner { AprLock memory _option = _aprLockOptions[_index]; _aprLockOptions[_index] = AprLock({ apr: _apr, lockTime: _lockTime }); emit UpdateAprLockOption( _index, _option.apr, _option.lockTime, _apr, _lockTime ); } function setIsBlacklisted(uint256 _tokenId, bool _isBlacklisted) external onlyOwner { isBlacklisted[_tokenId] = _isBlacklisted; emit SetTokenBlacklist(_tokenId, _isBlacklisted); } function _baseURI() internal view override returns (string memory) { return baseTokenURI; } function _beforeTokenTransfer( address _from, address _to, uint256 _tokenId ) internal virtual override(ERC721Enumerable) { require(!isBlacklisted[_tokenId], 'blacklisted NFT'); tokenLastTransferred[_tokenId] = block.timestamp; super._beforeTokenTransfer(_from, _to, _tokenId); } function _afterTokenTransfer( address _from, address _to, uint256 _tokenId ) internal virtual override(ERC721) { Stake memory _tokenStake = stakes[_tokenId]; // if from == address(0), token is being minted if (_from != address(0)) { uint256 _currIndex = ownedIndex[_tokenId]; uint256 _tokenIdMovingIndices = allUserOwned[_from][ allUserOwned[_from].length - 1 ]; allUserOwned[_from][_currIndex] = allUserOwned[_from][ allUserOwned[_from].length - 1 ]; allUserOwned[_from].pop(); ownedIndex[_tokenIdMovingIndices] = _currIndex; rewards.setShare(_from, _tokenStake.amountYDFBaseEarn, true); } // if to == address(0), token is being burned if (_to != address(0)) { ownedIndex[_tokenId] = allUserOwned[_to].length; allUserOwned[_to].push(_tokenId); rewards.setShare(_to, _tokenStake.amountYDFBaseEarn, false); } super._afterTokenTransfer(_from, _to, _tokenId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` 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 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "./IERC721Enumerable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; /** * @dev YDF token vester interface */ interface IYDFVester { function createVest(address user, uint256 amount) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface IStakeRewards { function claimReward(bool compound) external; function depositRewards() external payable; function getShares(address wallet) external view returns (uint256); function setShare( address shareholder, uint256 balanceUpdate, bool isRemoving ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
pragma solidity >=0.5.0; 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; }
{ "metadata": { "bytecodeHash": "none" }, "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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- No Contract Security Audit Submitted- Submit Audit Here
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"type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isTaxExcluded","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"lastBuyTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"launchBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"launchTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"mmPairs","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"resetBuySellMetadata","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"sellTracker","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_wallet","type":"address"},{"internalType":"bool","name":"_isExcluded","type":"bool"}],"name":"setIsTaxExcluded","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_addy","type":"address"},{"internalType":"bool","name":"_isPair","type":"bool"}],"name":"setMarketMakingPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_enabled","type":"bool"}],"name":"setSwapEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_treasury","type":"address"}],"name":"setTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"stakeMintToVester","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxEarlyPerc","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxMarketingPerc","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxRewardsPerc","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasury","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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