AutoSwapperWusdnSdex
Inherits: Ownable2Step, IAutoSwapperWusdnSdex, IFeeCollectorCallback, ERC165, ISmardexSwapCallback
Automates protocol fee conversion from WUSDN to SDEX via Smardex.
State Variables
BPS_DIVISOR
Decimal points for basis points (bps).
uint16 internal constant BPS_DIVISOR = 10_000;
WUSDN
Wrapped USDN token address.
IERC20 internal constant WUSDN = IERC20(0x99999999999999Cc837C997B882957daFdCb1Af9);
SMARDEX_WUSDN_SDEX_PAIR
SmarDex pair address for WUSDN/SDEX swaps.
ISmardexPair internal constant SMARDEX_WUSDN_SDEX_PAIR = ISmardexPair(0x11443f5B134c37903705e64129BEFc20e35a3725);
FEE_LP
Fee rates for LP on the SmarDex pair.
uint128 internal immutable FEE_LP;
FEE_POOL
Fee rates for the pool on the SmarDex pair.
uint128 internal immutable FEE_POOL;
_swapSlippage
Allowed slippage for swaps (in basis points).
uint256 internal _swapSlippage = 100;
Functions
constructor
constructor() Ownable(msg.sender);
feeCollectorCallback
Called by the USDN protocol on the fee collector contract when the fee threshold is reached.
function feeCollectorCallback(uint256) external;
Parameters
| Name | Type | Description |
|---|---|---|
<none> | uint256 |
swapWusdnToSdex
Swap WUSDN to SDEX.
function swapWusdnToSdex() external;
smardexSwapCallback
callback data for swap
function smardexSwapCallback(int256, int256 amountWusdnIn, bytes calldata) external;
Parameters
| Name | Type | Description |
|---|---|---|
<none> | int256 | |
amountWusdnIn | int256 | |
<none> | bytes |
sweep
Admin function to send the contract token balance to a specified address.
function sweep(address token, address to, uint256 amount) external onlyOwner;
Parameters
| Name | Type | Description |
|---|---|---|
token | address | The address of the token to send. |
to | address | The recipient address. |
amount | uint256 | The amount of tokens to send. |
getSwapSlippage
Get the current swap slippage setting (in basis points)
function getSwapSlippage() external view returns (uint256);
Returns
| Name | Type | Description |
|---|---|---|
<none> | uint256 | Current slippage tolerance |
updateSwapSlippage
Updates the allowed slippage percentage for swaps.
function updateSwapSlippage(uint256 newSwapSlippage) external onlyOwner;
Parameters
| Name | Type | Description |
|---|---|---|
newSwapSlippage | uint256 |
supportsInterface
See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId) public view override(ERC165, IERC165) returns (bool);
_quoteAmountOut
Calculates the amount of SDEX that can be obtained from a given amount of WUSDN.
function _quoteAmountOut(uint256 amountIn) internal view returns (uint256 amountOut_);
Parameters
| Name | Type | Description |
|---|---|---|
amountIn | uint256 | The amount of WUSDN to swap |
Returns
| Name | Type | Description |
|---|---|---|
amountOut_ | uint256 | The amount of SDEX that can be obtained |