Contract Name:
StarterDummies
Contract Source Code:
// File: contracts\openzeppelin\contracts\utils\ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity ^0.8.19;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
* consider using {ReentrancyGuardTransient} instead.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant NOT_ENTERED = 1;
uint256 private constant ENTERED = 2;
uint256 private _status;
/**
* @dev Unauthorized reentrant call.
*/
error ReentrancyGuardReentrantCall();
constructor() {
_status = NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be NOT_ENTERED
if (_status == ENTERED) {
revert ReentrancyGuardReentrantCall();
}
// Any calls to nonReentrant after this point will fail
_status = ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == ENTERED;
}
}
// File: contracts\openzeppelin\contracts\utils\Context.sol
pragma solidity ^0.8.19;
/**
* @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;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
// File: contracts\openzeppelin\contracts\utils\Pausable.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)
pragma solidity ^0.8.19;
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
bool private _paused;
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
/**
* @dev The operation failed because the contract is paused.
*/
error EnforcedPause();
/**
* @dev The operation failed because the contract is not paused.
*/
error ExpectedPause();
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
if (paused()) {
revert EnforcedPause();
}
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
if (!paused()) {
revert ExpectedPause();
}
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
// File: contracts\openzeppelin\contracts\token\ERC20\IERC20.sol
pragma solidity ^0.8.19;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
// File: contracts\openzeppelin\contracts\access\Ownable.sol
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.19;
/**
* @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.
*
* The initial owner is set to the address provided by the deployer. 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;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @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 {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling 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 {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: contracts/Bubble/holding.sol
pragma solidity ^0.8.19;
interface IPairFactory {
function getPair(address tokenA, address token, bool stable) external view returns (address);
}
struct Route {
address from;
address to;
bool stable;
}
interface IRouter {
function addLiquidityETH (address token, bool stable, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function removeLiquidityETH(address token, bool stable, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external returns (uint amountToken, uint amountETH);
function getAmountsOut(uint amountIn, Route[] memory routes) external view returns (uint[] memory amounts);
function weth() external view returns (address);
function factory() external view returns (address);
}
interface IClaimable {
function claimFees() external returns (uint claimed0, uint claimed1);
function claimable0 (address holder) external view returns (uint256);
function claimable1 (address holder) external view returns (uint256);
function token0() external view returns (address);
function token1() external view returns (address);
}
contract StarterDummies is ReentrancyGuard, Ownable, Pausable {
IERC20 public dToken;
IRouter public equalRouter;
constructor() Ownable(0x061117bBCeb190f32D52487A391c956F4E9Da459) ReentrancyGuard() Pausable() {
dToken = IERC20(0x7c7AA1B786477d4b157E6372dFADC78D73eE97F8);
equalRouter = IRouter(0x7635cD591CFE965bE8beC60Da6eA69b6dcD27e4b);
}
struct Stake {
uint256 liquidity; // LP tokens staked
uint256 startTime; // When staking started
}
mapping(address => Stake) public stakes;
address[] public stakers;
function removeAddr(address addr) internal {
uint l = stakers.length;
if (l>0) {
for(uint256 i=0; i<l; i++) {
if (stakers[i] == addr) {
stakers[i] = stakers[l - 1];
stakers.pop();
return;
}
}
}
}
event Staked(address indexed user, uint256 tokenAmount, uint256 ethAmount, uint256 liquidity);
event Unstaked(address indexed user, uint256 ethAmount, uint256 tokenAmount);
event RedistributeFee(address indexed owner, uint256 amount);
function start(uint256 prize) public payable onlyOwner {
dToken.approve(address(equalRouter), type(uint256).max);
address pool = IPairFactory(equalRouter.factory()).getPair(equalRouter.weth(), address(dToken), false);
if (pool == address(0))
{
uint256 bubbleAmount = msg.value * prize; //to 2 decimals prize.
uint256 balEcu = dToken.balanceOf(address(this));
require(bubbleAmount <= balEcu, "no sufficient ecu");
// Add liquidity with the remaining ETH and swapped ECU tokens
(uint256 amountToken, uint256 amountETH, uint256 liquidity) = equalRouter.addLiquidityETH{value: msg.value}(
address(dToken), false,
bubbleAmount,
0, // Accept any amount of tokens
0, // Accept any amount of ETH
address(this), // Lock LP tokens in the contract
block.timestamp + 60
);
// Record the stake
Stake storage userStake = stakes[msg.sender];
if (userStake.liquidity == 0) {
stakers.push(msg.sender);
}
userStake.liquidity += liquidity;
userStake.startTime = block.timestamp;
emit Staked(msg.sender, amountToken, amountETH, liquidity);
}
}
function setPause(bool p) external onlyOwner {
if (p)
_pause();
else
_unpause();
}
function simulateStake(uint256 value) public view returns (uint256) {
// Path for swapping ETH -> ECU
Route[] memory path = new Route[](1);
path[0] = Route(address(equalRouter.weth()), address(dToken), false); // WETH
uint256[] memory amounts = equalRouter.getAmountsOut(value, path);
return amounts[1];
}
// Stake S and go direct to 100% to add liquidity
function stake() public payable nonReentrant() whenNotPaused() {
address pairAddress = IPairFactory(equalRouter.factory()).getPair(equalRouter.weth(), address(dToken), false);
require(pairAddress != address(0), "Pair not found");
require(msg.value > 0, "Cannot stake 0 ETH");
// Path for swapping ETH -> ECU
Route[] memory path = new Route[](1);
path[0] = Route(equalRouter.weth(), address(dToken), false); // WETH
uint256[] memory amounts = equalRouter.getAmountsOut(msg.value, path);
uint256 bubbleAmount = amounts[1];
uint256 bal = dToken.balanceOf(address(this));
require(bubbleAmount <= bal, "no sufficient ecu");
// Ensure that the contract has approved the router for ECU tokens
uint256 allowance = dToken.allowance(address(this), address(equalRouter));
if (allowance < bubbleAmount) {
dToken.approve(address(equalRouter), bubbleAmount);
}
// Add liquidity with the remaining ETH and swapped ECU tokens
(uint256 amountToken, uint256 amountETH, uint256 liquidity) = equalRouter.addLiquidityETH{value: msg.value}(
address(dToken), false,
bubbleAmount,
0, // Accept any amount of tokens
0, // Accept any amount of ETH
address(this), // Lock LP tokens in the contract
block.timestamp + 60
);
// Record the stake
Stake storage userStake = stakes[msg.sender];
if (userStake.liquidity == 0) {
stakers.push(msg.sender);
}
userStake.liquidity += liquidity;
userStake.startTime = block.timestamp;
emit Staked(msg.sender, amountToken, amountETH, liquidity);
}
// Unstake and retrieve S
function unstake() public nonReentrant() whenNotPaused() {
Stake storage userStake = stakes[msg.sender];
require(userStake.liquidity > 0, "No staked liquidity");
uint256 liquidity = userStake.liquidity;
userStake.liquidity = 0; // Reset stake
removeAddr(msg.sender);
address pairAddress = IPairFactory(equalRouter.factory()).getPair(equalRouter.weth(), address(dToken), false);
require(pairAddress != address(0), "Pair not found");
uint256 lpBalance = IERC20(pairAddress).balanceOf(address(this));
require(lpBalance >= liquidity, "Insufficient LP token balance in the contract");
uint256 allowance = IERC20(pairAddress).allowance(address(this), address(equalRouter));
if (allowance < lpBalance) {
IERC20(pairAddress).approve(address(equalRouter), type(uint256).max);
}
// Remove liquidity and transfer assets to user
(uint256 amountToken, uint256 amountETH) = equalRouter.removeLiquidityETH(
address(dToken), false,
liquidity,
0, // Accept any amount of tokens
0, // Accept any amount of ETH
address(this), // Send assets to contract
block.timestamp + 60
);
// send eth to sender.
(bool success,) = payable(msg.sender).call{value: amountETH}("");
require(success);
emit Unstaked(msg.sender, amountETH, amountToken);
}
function claimable() external view returns (uint256 amount0, uint256 amount1) {
address pairAddress = IPairFactory(equalRouter.factory()).getPair(equalRouter.weth(), address(dToken), false);
require(pairAddress != address(0), "Pair not found");
IClaimable icl = IClaimable(pairAddress);
amount0 = icl.claimable0(address(this));
amount1 = icl.claimable1(address(this));
}
function redistributeFee() external onlyOwner nonReentrant returns (bool) {
address pairAddress = IPairFactory(equalRouter.factory()).getPair(equalRouter.weth(), address(dToken), false);
require(pairAddress != address(0), "Pair not found");
(uint claimed0, uint claimed1) = IClaimable(pairAddress).claimFees();
uint claimableVal = (IClaimable(pairAddress).token0() == equalRouter.weth()) ? claimed0 : claimed1;
require(claimableVal > 0, "claim");
uint l = stakers.length;
require (l>0);
uint256 sumLiqui = 0;
for(uint256 i=0; i<l; i++) {
address stker = stakers[i];
Stake storage userStake = stakes[stker];
if ((userStake.startTime + 1 days) >= block.timestamp || stker == owner()) {
sumLiqui += userStake.liquidity;
}
}
if (sumLiqui > 0) {
for(uint256 i=0; i<l; i++) {
address stker = stakers[i];
Stake storage userStake = stakes[stker];
if ((userStake.startTime + 1 days) >= block.timestamp || stker == owner()) {
uint256 sum = claimableVal * userStake.liquidity / sumLiqui;
if (sum > 0) {
uint256 bal = address(this).balance;
require(sum <= bal, "amount to high");
(bool success, ) = payable(stker).call{value: sum}("");
require(success, "");
emit RedistributeFee(stker, sum);
}
}
}
}
return true;
}
// Owner withdraws excess Buuble tokens from the contract.
function withdrawBubble(uint256 amount) external onlyOwner {
uint256 contractBalance = dToken.balanceOf(address(this));
require(amount <= contractBalance, "Insufficient ECU balance");
dToken.transfer(owner(), amount);
}
// Normally the bal of this contract must bed "0". but to maintenance.
function withdraw(uint256 amount) external onlyOwner {
uint256 bal = address(this).balance;
require(amount <= bal, "amount to high");
(bool success, ) = payable(owner()).call{value: amount}("");
require(success, "");
}
// Receive ETH fallback.
receive() external payable {}
}