Contract Name:
MoonshotToken
Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard ERC20 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
*/
interface IERC20Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC20InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC20InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
* @param spender Address that may be allowed to operate on tokens without being their owner.
* @param allowance Amount of tokens a `spender` is allowed to operate with.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC20InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `spender` to be approved. Used in approvals.
* @param spender Address that may be allowed to operate on tokens without being their owner.
*/
error ERC20InvalidSpender(address spender);
}
/**
* @dev Standard ERC721 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
*/
interface IERC721Errors {
/**
* @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
* Used in balance queries.
* @param owner Address of the current owner of a token.
*/
error ERC721InvalidOwner(address owner);
/**
* @dev Indicates a `tokenId` whose `owner` is the zero address.
* @param tokenId Identifier number of a token.
*/
error ERC721NonexistentToken(uint256 tokenId);
/**
* @dev Indicates an error related to the ownership over a particular token. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param tokenId Identifier number of a token.
* @param owner Address of the current owner of a token.
*/
error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC721InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC721InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param tokenId Identifier number of a token.
*/
error ERC721InsufficientApproval(address operator, uint256 tokenId);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC721InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC721InvalidOperator(address operator);
}
/**
* @dev Standard ERC1155 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
*/
interface IERC1155Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
* @param tokenId Identifier number of a token.
*/
error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC1155InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC1155InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param owner Address of the current owner of a token.
*/
error ERC1155MissingApprovalForAll(address operator, address owner);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC1155InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC1155InvalidOperator(address operator);
/**
* @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
* Used in batch transfers.
* @param idsLength Length of the array of token identifiers
* @param valuesLength Length of the array of token amounts
*/
error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.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}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* 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.
*/
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
mapping(address account => uint256) private _balances;
mapping(address account => mapping(address spender => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* 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 returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual 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 default value returned by this function, unless
* it's 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 returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual 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 `value`.
*/
function transfer(address to, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_transfer(owner, to, value);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `value` 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 value) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, value);
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 `value`.
* - the caller must have allowance for ``from``'s tokens of at least
* `value`.
*/
function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, value);
_transfer(from, to, value);
return true;
}
/**
* @dev Moves a `value` 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.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _transfer(address from, address to, uint256 value) internal {
if (from == address(0)) {
revert ERC20InvalidSender(address(0));
}
if (to == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(from, to, value);
}
/**
* @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
* (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
* this function.
*
* Emits a {Transfer} event.
*/
function _update(address from, address to, uint256 value) internal virtual {
if (from == address(0)) {
// Overflow check required: The rest of the code assumes that totalSupply never overflows
_totalSupply += value;
} else {
uint256 fromBalance = _balances[from];
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
// Overflow not possible: value <= fromBalance <= totalSupply.
_balances[from] = fromBalance - value;
}
}
if (to == address(0)) {
unchecked {
// Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
_totalSupply -= value;
}
} else {
unchecked {
// Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
_balances[to] += value;
}
}
emit Transfer(from, to, value);
}
/**
* @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
* Relies on the `_update` mechanism
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _mint(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(address(0), account, value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
* Relies on the `_update` mechanism.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead
*/
function _burn(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidSender(address(0));
}
_update(account, address(0), value);
}
/**
* @dev Sets `value` 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.
*
* Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
*/
function _approve(address owner, address spender, uint256 value) internal {
_approve(owner, spender, value, true);
}
/**
* @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
*
* By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
* `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
* `Approval` event during `transferFrom` operations.
*
* Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
* true using the following override:
* ```
* function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
* super._approve(owner, spender, value, true);
* }
* ```
*
* Requirements are the same as {_approve}.
*/
function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
if (owner == address(0)) {
revert ERC20InvalidApprover(address(0));
}
if (spender == address(0)) {
revert ERC20InvalidSpender(address(0));
}
_allowances[owner][spender] = value;
if (emitEvent) {
emit Approval(owner, spender, value);
}
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `value`.
*
* Does not update the allowance value in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Does not emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
if (currentAllowance < value) {
revert ERC20InsufficientAllowance(spender, currentAllowance, value);
}
unchecked {
_approve(owner, spender, currentAllowance - value, false);
}
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol)
pragma solidity ^0.8.20;
import {ERC20} from "../ERC20.sol";
import {Context} from "../../../utils/Context.sol";
/**
* @dev Extension of {ERC20} that allows token holders to destroy both their own
* tokens and those that they have an allowance for, in a way that can be
* recognized off-chain (via event analysis).
*/
abstract contract ERC20Burnable is Context, ERC20 {
/**
* @dev Destroys a `value` amount of tokens from the caller.
*
* See {ERC20-_burn}.
*/
function burn(uint256 value) public virtual {
_burn(_msgSender(), value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, deducting from
* the caller's allowance.
*
* See {ERC20-_burn} and {ERC20-allowance}.
*
* Requirements:
*
* - the caller must have allowance for ``accounts``'s tokens of at least
* `value`.
*/
function burnFrom(address account, uint256 value) public virtual {
_spendAllowance(account, _msgSender(), value);
_burn(account, value);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*/
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 (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @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 value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` 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 value) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @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;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity ^0.8.20;
/**
* @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 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;
}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.23;
interface IBaseV1Factory {
function allPairsLength() external view returns (uint);
function isPair(address pair) external view returns (bool);
function pairCodeHash() external pure returns (bytes32);
function getPair(address tokenA, address token, bool stable) external view returns (address);
function createPair(address tokenA, address tokenB, bool stable) external returns (address pair);
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.23;
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
interface IMoonshotToken is IERC20 {
enum CurveType {
ConstantProductV1
}
struct ConstructorParams {
string name;
string symbol;
address creator;
uint256 totalSupply;
uint256 virtualTokenReserves;
uint256 virtualCollateralReserves;
uint256 feeBasisPoints;
uint256 dexFeeBasisPoints;
uint256 migrationFeeFixed;
uint256 poolCreationFee;
uint256 mcLowerLimit;
uint256 mcUpperLimit;
uint256 tokensMigrationThreshold;
address treasury;
address solidlyRouter;
address dexTreasury;
}
error NotEnoughETHReserves();
error InsufficientTokenReserves();
error FailedToSendETH();
error NotEnoughtETHToBuyTokens();
error SlippageCheckFailed();
error MarketcapThresholdReached();
error SendingToPairIsNotAllowedBeforeMigration();
error PairNotCreated();
error TradingStopped();
error OnlyFactory();
function buyExactOut(
uint256 _tokenAmount,
uint256 _maxCollateralAmount
) external payable returns (uint256 collateralToPayWithFee, uint256 helioFee, uint256 dexFee);
function buyExactIn(
uint256 _amountOutMin
) external payable returns (uint256 collateralToPayWithFee, uint256 helioFee, uint256 dexFee);
function sellExactIn(
uint256 _tokenAmount,
uint256 _amountOutMin
) external payable returns (uint256 collateralToReceiveMinusFee, uint256 helioFee, uint256 dexFee);
function sellExactOut(
uint256 _tokenAmountMax,
uint256 _amountCollateral
)
external
payable
returns (uint256 collateralToReceiveMinusFee, uint256 tokensOut, uint256 helioFee, uint256 dexFee);
function getAmountOutAndFee(
uint256 _amountIn,
uint256 _reserveIn,
uint256 _reserveOut,
bool _paymentTokenIsIn
) external view returns (uint256 amountOut, uint256 fee);
function getAmountInAndFee(
uint256 _amountOut,
uint256 _reserveIn,
uint256 _reserveOut,
bool _paymentTokenIsOut
) external view returns (uint256 amountIn, uint256 fee);
function migrate()
external
returns (uint256 tokensToMigrate, uint256 tokensToBurn, uint256 collateralAmount, address pair);
function getCurveProgressBps() external view returns (uint256);
function getMarketCap() external view returns (uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;
interface IRouter02 {
struct Route {
address from;
address to;
bool stable;
}
function factory() external view returns (address);
function weth() external view returns (address);
function pairFor(address tokenA, address tokenB, bool stable) external view returns (address pair);
function getReserves(
address tokenA,
address tokenB,
bool stable
) external view returns (uint reserveA, uint reserveB);
function getAmountOut(
uint amountIn,
address tokenIn,
address tokenOut
) external view returns (uint amount, bool stable);
function getAmountOut(
uint amountIn,
address tokenIn,
address tokenOut,
bool stable
) external view returns (uint amount);
function getAmountsOut(uint amountIn, Route[] memory routes) external view returns (uint[] memory amounts);
function isPair(address pair) external view returns (bool);
function quoteAddLiquidity(
address tokenA,
address tokenB,
bool stable,
uint amountADesired,
uint amountBDesired
) external view returns (uint amountA, uint amountB, uint liquidity);
function quoteRemoveLiquidity(
address tokenA,
address tokenB,
bool stable,
uint liquidity
) external view returns (uint amountA, uint amountB);
function addLiquidity(
address tokenA,
address tokenB,
bool stable,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
bool stable,
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,
bool stable,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
bool stable,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
bool stable,
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,
bool stable,
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 removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
bool stable,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
bool stable,
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 swapExactTokensForTokensSimple(
uint amountIn,
uint amountOutMin,
address tokenFrom,
address tokenTo,
bool stable,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
Route[] calldata routes,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(
uint amountOutMin,
Route[] calldata routes,
address to,
uint deadline
) external payable returns (uint[] memory amounts);
function swapExactTokensForETH(
uint amountIn,
uint amountOutMin,
Route[] calldata routes,
address to,
uint deadline
) external returns (uint[] memory amounts);
function UNSAFE_swapExactTokensForTokens(
uint[] memory amounts,
Route[] calldata routes,
address to,
uint deadline
) external returns (uint[] memory);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
Route[] calldata routes,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
Route[] calldata routes,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
Route[] calldata routes,
address to,
uint deadline
) external;
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.23;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {IRouter02} from "./interfaces/IRouter02.sol";
import {IBaseV1Factory} from "./interfaces/IBaseV1Factory.sol";
import {IMoonshotToken} from "./interfaces/IMoonshotToken.sol";
contract MoonshotToken is ERC20Burnable, IMoonshotToken, ReentrancyGuard {
CurveType public constant curveType = CurveType.ConstantProductV1;
uint256 public initalTokenSupply;
uint256 public virtualTokenReserves;
uint256 public virtualCollateralReserves;
uint256 public immutable virtualCollateralReservesInitial;
uint256 public immutable feeBPS;
uint256 public immutable dexFeeBPS;
uint256 public immutable mcLowerLimit;
uint256 public immutable mcUpperLimit;
uint256 public immutable tokensMigrationThreshold;
uint256 public immutable fixedMigrationFee;
uint256 public immutable poolCreationFee;
address public immutable creator;
address public immutable treasury;
address public immutable dexTreasury;
address public immutable factory;
bool public tradingStopped;
bool public sendingToPairNotAllowed = true;
uint256 public constant MAX_BPS = 10_000;
IRouter02 public immutable solidlyRouter;
modifier buyChecks() {
if (tradingStopped) revert TradingStopped();
_;
_checkMcLower();
_checkMcUpperLimit();
}
modifier sellChecks() {
if (tradingStopped) revert TradingStopped();
_;
}
modifier onlyFactory() {
if (msg.sender != factory) revert OnlyFactory();
_;
}
constructor(ConstructorParams memory _params) ERC20(_params.name, _params.symbol) {
_mint(address(this), _params.totalSupply);
initalTokenSupply = _params.totalSupply;
virtualCollateralReserves = _params.virtualCollateralReserves;
virtualCollateralReservesInitial = _params.virtualCollateralReserves;
virtualTokenReserves = _params.virtualTokenReserves;
creator = _params.creator;
feeBPS = _params.feeBasisPoints;
dexFeeBPS = _params.dexFeeBasisPoints;
treasury = _params.treasury;
dexTreasury = _params.dexTreasury;
fixedMigrationFee = _params.migrationFeeFixed;
poolCreationFee = _params.poolCreationFee;
mcLowerLimit = _params.mcLowerLimit;
mcUpperLimit = _params.mcUpperLimit;
tokensMigrationThreshold = _params.tokensMigrationThreshold;
solidlyRouter = IRouter02(_params.solidlyRouter);
factory = msg.sender;
}
/**
* @dev Buys tokenAmount of tokens for eth, refunding excess eth
*
* @param _tokenAmount - amount of tokens to buy
* @param _maxCollateralAmount - maximum amount of collateral a caller is willing to spend
*/
function buyExactOut(
uint256 _tokenAmount,
uint256 _maxCollateralAmount
)
external
payable
onlyFactory
buyChecks
returns (uint256 collateralToPayWithFee, uint256 helioFee, uint256 dexFee)
{
if (balanceOf(address(this)) <= _tokenAmount) revert InsufficientTokenReserves();
uint256 collateralToSpend = (_tokenAmount * virtualCollateralReserves) / (virtualTokenReserves - _tokenAmount);
(helioFee, dexFee) = _calculateFee(collateralToSpend);
collateralToPayWithFee = collateralToSpend + helioFee + dexFee;
if (collateralToPayWithFee > _maxCollateralAmount) revert SlippageCheckFailed();
_transferCollateral(treasury, helioFee);
_transferCollateral(dexTreasury, dexFee);
virtualTokenReserves -= _tokenAmount;
virtualCollateralReserves += collateralToSpend;
uint256 refund;
if (msg.value > collateralToPayWithFee) {
// refund the user
refund = msg.value - collateralToPayWithFee;
_transferCollateral(msg.sender, refund);
} else if (msg.value < collateralToPayWithFee) {
revert NotEnoughtETHToBuyTokens();
}
_transfer(address(this), msg.sender, _tokenAmount);
}
/**
* @dev Buys tokens specifing minimal amount of tokens a caller gets
*
* @param _amountOutMin - minimal amount of tokens a caller will get
*/
function buyExactIn(
uint256 _amountOutMin
)
external
payable
onlyFactory
buyChecks
returns (uint256 collateralToPayWithFee, uint256 helioFee, uint256 dexFee)
{
if (balanceOf(address(this)) <= _amountOutMin) revert InsufficientTokenReserves();
collateralToPayWithFee = msg.value;
(helioFee, dexFee) = _calculateFee(collateralToPayWithFee);
uint256 collateralToSpendMinusFee = collateralToPayWithFee - helioFee - dexFee;
_transferCollateral(treasury, helioFee);
_transferCollateral(dexTreasury, dexFee);
uint256 tokensOut = (collateralToSpendMinusFee * virtualTokenReserves) /
(virtualCollateralReserves + collateralToSpendMinusFee);
if (tokensOut < _amountOutMin) revert SlippageCheckFailed();
virtualTokenReserves -= tokensOut;
virtualCollateralReserves += collateralToSpendMinusFee;
_transfer(address(this), msg.sender, tokensOut);
}
/**
* @dev Sells given amount of tokens for eth
*
* @param _tokenAmount - amount of tokens a caller wants to sell
* @param _amountCollateralMin - minimum amount of collateral a seller will get
*/
function sellExactIn(
uint256 _tokenAmount,
uint256 _amountCollateralMin
)
external
payable
onlyFactory
sellChecks
returns (uint256 collateralToReceiveMinusFee, uint256 helioFee, uint256 dexFee)
{
uint256 collaterallToReceive = (_tokenAmount * virtualCollateralReserves) /
(virtualTokenReserves + _tokenAmount);
(helioFee, dexFee) = _calculateFee(collaterallToReceive);
collateralToReceiveMinusFee = collaterallToReceive - helioFee - dexFee;
_transferCollateral(treasury, helioFee);
_transferCollateral(dexTreasury, dexFee);
if (collateralToReceiveMinusFee < _amountCollateralMin) revert SlippageCheckFailed();
virtualTokenReserves += _tokenAmount;
virtualCollateralReserves -= collaterallToReceive;
_transferCollateral(msg.sender, collateralToReceiveMinusFee);
_transfer(msg.sender, address(this), _tokenAmount);
}
/**
* @dev Sells given amount of tokens for eth
*
* @param _tokenAmountMax - max amount of tokens a caller wants to sell
*/
function sellExactOut(
uint256 _tokenAmountMax,
uint256 _amountCollateral
)
external
payable
onlyFactory
sellChecks
returns (uint256 collateralToReceiveMinusFee, uint256 tokensOut, uint256 helioFee, uint256 dexFee)
{
(helioFee, dexFee) = _calculateFee(_amountCollateral);
collateralToReceiveMinusFee = _amountCollateral - helioFee - dexFee;
_transferCollateral(treasury, helioFee);
_transferCollateral(dexTreasury, dexFee);
tokensOut = (_amountCollateral * virtualTokenReserves) / (virtualCollateralReserves - _amountCollateral);
if (tokensOut > _tokenAmountMax) revert SlippageCheckFailed();
_transfer(msg.sender, address(this), tokensOut);
virtualTokenReserves += tokensOut;
virtualCollateralReserves -= _amountCollateral;
_transferCollateral(msg.sender, collateralToReceiveMinusFee);
}
/**
* @dev Calculates amountOut for a given amountIn
*
* @param _amountIn - amount in which will be transfered to the contract
* @param _reserveIn - reserve in
* @param _reserveOut - reserve out
* @param _paymentTokenIsIn - if token in is a collateral token
*/
function getAmountOutAndFee(
uint256 _amountIn,
uint256 _reserveIn,
uint256 _reserveOut,
bool _paymentTokenIsIn
) external view returns (uint256 amountOut, uint256 fee) {
if (_paymentTokenIsIn) {
(uint256 helioFee, uint256 dexFee) = _calculateFee(_amountIn);
fee = helioFee + dexFee;
amountOut = (_amountIn * _reserveOut) / (_reserveIn + _amountIn);
} else {
amountOut = (_amountIn * _reserveOut) / (_reserveIn + _amountIn);
(uint256 helioFee, uint256 dexFee) = _calculateFee(amountOut);
fee = helioFee + dexFee;
}
}
/**
* @dev Calculates amountIn for a given amountOut
*
* @param _amountOut - amount out which will be transfered from the contract
* @param _reserveIn - reserve in
* @param _reserveOut - reserve out
* @param _paymentTokenIsOut - if token out is a payment token
*/
function getAmountInAndFee(
uint256 _amountOut,
uint256 _reserveIn,
uint256 _reserveOut,
bool _paymentTokenIsOut
) external view returns (uint256 amountIn, uint256 fee) {
if (_paymentTokenIsOut) {
(uint256 helioFee, uint256 dexFee) = _calculateFee(_amountOut);
fee = helioFee + dexFee;
amountIn = (_amountOut * _reserveIn) / (_reserveOut - _amountOut);
} else {
amountIn = (_amountOut * _reserveIn) / (_reserveOut - _amountOut);
(uint256 helioFee, uint256 dexFee) = _calculateFee(amountIn);
fee = helioFee + dexFee;
}
}
/**
* @dev migrates tokens and collateral to uniswap-v2 and burns LP tokens
*/
function migrate()
external
onlyFactory
returns (uint256 tokensToMigrate, uint256 tokensToBurn, uint256 collateralAmount, address pair)
{
sendingToPairNotAllowed = false;
if (IBaseV1Factory(solidlyRouter.factory()).getPair(address(this), solidlyRouter.weth(), false) == address(0)) {
IBaseV1Factory(solidlyRouter.factory()).createPair(address(this), solidlyRouter.weth(), false);
}
pair = IBaseV1Factory(solidlyRouter.factory()).getPair(address(this), solidlyRouter.weth(), false);
if (pair == address(0)) revert PairNotCreated();
uint256 tokensRemaining = balanceOf(address(this));
this.approve(address(solidlyRouter), tokensRemaining);
tokensToMigrate = _tokensToMigrate();
tokensToBurn = tokensRemaining - tokensToMigrate;
(uint256 treasuryFee, uint256 dexFee) = _splitFee(fixedMigrationFee);
_transferCollateral(treasury, treasuryFee + poolCreationFee);
_transferCollateral(dexTreasury, dexFee);
_burn(address(this), tokensToBurn);
collateralAmount =
virtualCollateralReserves -
virtualCollateralReservesInitial -
treasuryFee -
dexFee -
poolCreationFee;
(, , uint256 liquidity) = solidlyRouter.addLiquidityETH{value: collateralAmount}(
address(this),
false,
tokensToMigrate,
tokensToMigrate,
collateralAmount,
address(this),
block.timestamp + 10
);
if (address(this).balance > 0) {
_transferCollateral(treasury, address(this).balance);
}
IERC20(pair).transfer(address(0), liquidity);
}
function getMarketCap() public view returns (uint256) {
uint256 mc = (virtualCollateralReserves * 10 ** 18 * totalSupply()) / virtualTokenReserves;
return mc / 10 ** 18;
}
function getCurveProgressBps() external view returns (uint256) {
uint256 progress = ((initalTokenSupply - balanceOf(address(this))) * MAX_BPS) / tokensMigrationThreshold;
return progress < 100 ? 100 : (progress > MAX_BPS ? MAX_BPS : progress);
}
function transfer(address _to, uint256 _value) public override(ERC20, IERC20) returns (bool) {
if (sendingToPairNotAllowed) {
if (IBaseV1Factory(solidlyRouter.factory()).isPair(_to)) revert SendingToPairIsNotAllowedBeforeMigration();
}
return super.transfer(_to, _value);
}
function transferFrom(address from, address to, uint256 amount) public override(ERC20, IERC20) returns (bool) {
if (sendingToPairNotAllowed) {
if (IBaseV1Factory(solidlyRouter.factory()).isPair(to)) revert SendingToPairIsNotAllowedBeforeMigration();
}
return super.transferFrom(from, to, amount);
}
function _tokensToMigrate() internal view returns (uint256) {
uint256 collateralDeductedFee = address(this).balance - fixedMigrationFee - poolCreationFee;
return (virtualTokenReserves * collateralDeductedFee) / virtualCollateralReserves;
}
function _calculateFee(uint256 _amount) internal view returns (uint256 treasuryFee, uint256 dexFee) {
treasuryFee = (_amount * feeBPS) / MAX_BPS;
dexFee = (treasuryFee * dexFeeBPS) / MAX_BPS;
treasuryFee -= dexFee;
}
function _splitFee(uint256 _feeAmount) internal view returns (uint256 treasuryFee, uint256 dexFee) {
dexFee = (_feeAmount * dexFeeBPS) / MAX_BPS;
treasuryFee = _feeAmount - dexFee;
}
function _transferCollateral(address _to, uint256 _amount) internal {
(bool sent, ) = _to.call{value: _amount}("");
if (!sent) revert FailedToSendETH();
}
function _checkMcUpperLimit() internal view {
uint256 mc = getMarketCap();
if (mc > mcUpperLimit) revert MarketcapThresholdReached();
}
function _checkMcLower() internal {
uint256 mc = getMarketCap();
if (mc > mcLowerLimit) {
tradingStopped = true;
}
}
}