文件 1 的 1:SUNNI.sol
pragma solidity 0.8.13;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Pair {
function sync() external;
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
}
contract SUNNI is Context, IERC20, IERC20Metadata, Ownable {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
bool private inSwap;
uint256 internal _FeeCollected;
uint256 public minTokensBeforeSwap;
IUniswapV2Router02 public router;
address public pair;
uint public _feeDecimal = 2;
uint[] public _Fee;
address public fee_wallet;
bool public swapEnabled = true;
bool public isFeeActive = true;
mapping(address => bool) public isTaxless;
event Swap(uint swaped);
event DelegateVotesChanged(
address indexed delegate,
uint previousBalance,
uint newBalance
);
event DelegateChanged(
address indexed delegator,
address indexed fromDelegate,
address indexed toDelegate
);
constructor(address _fee_wallet) {
string memory e_name = "SUNNI";
string memory e_symbol = "SUNNI";
uint e_totalSupply = 10_000_000_000 ether;
minTokensBeforeSwap = 1_000 ether ;
fee_wallet = _fee_wallet;
_name = e_name;
_symbol = e_symbol;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
router = _uniswapV2Router;
_Fee.push(3000);
_Fee.push(3000);
_Fee.push(0);
isTaxless[msg.sender] = true;
isTaxless[address(this)] = true;
isTaxless[fee_wallet] = true;
isTaxless[address(0)] = true;
_mint(msg.sender, e_totalSupply);
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
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;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, _allowances[owner][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = _allowances[owner][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
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);
if (swapEnabled && !inSwap && from != pair ) {
swap();
}
uint256 feesCollected;
if ((isFeeActive) && !isTaxless[from] && !isTaxless[to] && !inSwap) {
bool sell = to == pair;
bool p2p = from != pair && to != pair;
feesCollected = calculateFee(p2p ? 2 : sell ? 1 : 0, amount);
}
amount -= feesCollected;
_balances[from] -= feesCollected;
_balances[address(this)] += feesCollected;
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);
}
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);
}
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);
}
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);
}
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);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
function sendViaCall(address payable _to, uint amount) private {
(bool sent, bytes memory data) = _to.call{value: amount}("");
data;
require(sent, "Failed to send Ether");
}
function swap() private lockTheSwap {
uint swapAmount = balanceOf(address(this));
if(minTokensBeforeSwap > swapAmount) return;
address[] memory sellPath = new address[](2);
sellPath[0] = address(this);
sellPath[1] = router.WETH();
_approve(address(this), address(router), swapAmount);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
swapAmount,
0,
sellPath,
address(this),
block.timestamp
);
if(address(this).balance > 0) sendViaCall(payable(fee_wallet), address(this).balance);
emit Swap(swapAmount);
}
function calculateFee(uint256 feeIndex, uint256 amount) internal view returns(uint256) {
uint256 fee = (amount * _Fee[feeIndex]) / (10**(_feeDecimal + 2));
return fee;
}
function setMinTokensBeforeSwap(uint256 amount) external onlyOwner {
minTokensBeforeSwap = amount;
}
function setFeeWallet(address wallet) external onlyOwner {
fee_wallet = wallet;
}
function setFees(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_Fee[0] = buy;
_Fee[1] = sell;
_Fee[2] = p2p;
}
function setSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}
function setFeeActive(bool value) external onlyOwner {
isFeeActive = value;
}
function setTaxless(address account, bool value) external onlyOwner {
isTaxless[account] = value;
}
fallback() external payable {}
receive() external payable {}
}