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简化rewardReuter

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CounterFire2023 2024-08-23 17:36:45 +08:00
parent 2cde28e424
commit b4a6c241aa
1 changed files with 15 additions and 362 deletions
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375
contracts/staking/RewardRouter.sol
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@ -6,116 +6,33 @@ import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IRewardTracker} from "./interfaces/IRewardTracker.sol"; import {IRewardTracker} from "./interfaces/IRewardTracker.sol";
import {IRewardRouter} from "./interfaces/IRewardRouter.sol";
import {IVester} from "./interfaces/IVester.sol"; import {IVester} from "./interfaces/IVester.sol";
import {IMintable} from "../interfaces/IMintable.sol";
import "../core/interfaces/IGlpManager.sol";
import {Governable} from "../core/Governable.sol"; import {Governable} from "../core/Governable.sol";
contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable { contract RewardRouter is ReentrancyGuard, Governable {
using SafeERC20 for IERC20; using SafeERC20 for IERC20;
using Address for address payable;
enum VotingPowerType {
None,
BaseStakedAmount,
BaseAndBonusStakedAmount
}
uint256 public constant BASIS_POINTS_DIVISOR = 10000;
bool public isInitialized;
address public weth;
address public gmx; address public gmx;
address public esGmx; address public esGmx;
address public bnGmx;
address public glp; // GMX Liquidity Provider token
address public stakedGmxTracker; address public stakedGmxTracker;
address public bonusGmxTracker;
address public feeGmxTracker;
address public override stakedGlpTracker;
address public override feeGlpTracker;
address public glpManager;
address public gmxVester; address public gmxVester;
address public glpVester;
uint256 public maxBoostBasisPoints; mapping (address sender=> address receiver) public pendingReceivers;
bool public inStrictTransferMode;
address public govToken;
VotingPowerType public votingPowerType;
mapping (address => address) public pendingReceivers;
event StakeGmx(address account, address token, uint256 amount); event StakeGmx(address account, address token, uint256 amount);
event UnstakeGmx(address account, address token, uint256 amount); event UnstakeGmx(address account, address token, uint256 amount);
event StakeGlp(address account, uint256 amount); constructor(
event UnstakeGlp(address account, uint256 amount);
receive() external payable {
require(msg.sender == weth, "Router: invalid sender");
}
function initialize(
address _weth,
address _gmx, address _gmx,
address _esGmx, address _esGmx,
address _bnGmx,
address _glp,
address _stakedGmxTracker, address _stakedGmxTracker,
address _bonusGmxTracker, address _gmxVester
address _feeGmxTracker, ) {
address _feeGlpTracker,
address _stakedGlpTracker,
address _glpManager,
address _gmxVester,
address _glpVester,
address _govToken
) external onlyGov {
require(!isInitialized, "already initialized");
isInitialized = true;
weth = _weth;
gmx = _gmx; gmx = _gmx;
esGmx = _esGmx; esGmx = _esGmx;
bnGmx = _bnGmx;
glp = _glp;
stakedGmxTracker = _stakedGmxTracker; stakedGmxTracker = _stakedGmxTracker;
bonusGmxTracker = _bonusGmxTracker;
feeGmxTracker = _feeGmxTracker;
feeGlpTracker = _feeGlpTracker;
stakedGlpTracker = _stakedGlpTracker;
glpManager = _glpManager;
gmxVester = _gmxVester; gmxVester = _gmxVester;
glpVester = _glpVester;
govToken = _govToken;
}
function setInStrictTransferMode(bool _inStrictTransferMode) external onlyGov {
inStrictTransferMode = _inStrictTransferMode;
}
function setMaxBoostBasisPoints(uint256 _maxBoostBasisPoints) external onlyGov {
maxBoostBasisPoints = _maxBoostBasisPoints;
}
function setVotingPowerType(VotingPowerType _votingPowerType) external onlyGov {
votingPowerType = _votingPowerType;
} }
// to help users who accidentally send their tokens to this contract // to help users who accidentally send their tokens to this contract
@ -143,95 +60,22 @@ contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable {
} }
function unstakeGmx(uint256 _amount) external nonReentrant { function unstakeGmx(uint256 _amount) external nonReentrant {
_unstakeGmx(msg.sender, gmx, _amount, true); _unstakeGmx(msg.sender, gmx, _amount);
} }
function unstakeEsGmx(uint256 _amount) external nonReentrant { function unstakeEsGmx(uint256 _amount) external nonReentrant {
_unstakeGmx(msg.sender, esGmx, _amount, true); _unstakeGmx(msg.sender, esGmx, _amount);
}
function mintAndStakeGlp(address _token, uint256 _amount, uint256 _minUsdg, uint256 _minGlp) external nonReentrant returns (uint256) {
require(_amount > 0, "invalid _amount");
address account = msg.sender;
uint256 glpAmount = IGlpManager(glpManager).addLiquidityForAccount(account, account, _token, _amount, _minUsdg, _minGlp);
IRewardTracker(feeGlpTracker).stakeForAccount(account, account, glp, glpAmount);
IRewardTracker(stakedGlpTracker).stakeForAccount(account, account, feeGlpTracker, glpAmount);
emit StakeGlp(account, glpAmount);
return glpAmount;
}
function mintAndStakeGlpETH(uint256 _minUsdg, uint256 _minGlp) external payable nonReentrant returns (uint256) {
require(msg.value > 0, "invalid msg.value");
IWETH(weth).deposit{value: msg.value}();
IERC20(weth).approve(glpManager, msg.value);
address account = msg.sender;
uint256 glpAmount = IGlpManager(glpManager).addLiquidityForAccount(address(this), account, weth, msg.value, _minUsdg, _minGlp);
IRewardTracker(feeGlpTracker).stakeForAccount(account, account, glp, glpAmount);
IRewardTracker(stakedGlpTracker).stakeForAccount(account, account, feeGlpTracker, glpAmount);
emit StakeGlp(account, glpAmount);
return glpAmount;
}
function unstakeAndRedeemGlp(address _tokenOut, uint256 _glpAmount, uint256 _minOut, address _receiver) external nonReentrant returns (uint256) {
require(_glpAmount > 0, "invalid _glpAmount");
address account = msg.sender;
IRewardTracker(stakedGlpTracker).unstakeForAccount(account, feeGlpTracker, _glpAmount, account);
IRewardTracker(feeGlpTracker).unstakeForAccount(account, glp, _glpAmount, account);
uint256 amountOut = IGlpManager(glpManager).removeLiquidityForAccount(account, _tokenOut, _glpAmount, _minOut, _receiver);
emit UnstakeGlp(account, _glpAmount);
return amountOut;
}
function unstakeAndRedeemGlpETH(uint256 _glpAmount, uint256 _minOut, address payable _receiver) external nonReentrant returns (uint256) {
require(_glpAmount > 0, "invalid _glpAmount");
address account = msg.sender;
IRewardTracker(stakedGlpTracker).unstakeForAccount(account, feeGlpTracker, _glpAmount, account);
IRewardTracker(feeGlpTracker).unstakeForAccount(account, glp, _glpAmount, account);
uint256 amountOut = IGlpManager(glpManager).removeLiquidityForAccount(account, weth, _glpAmount, _minOut, address(this));
IWETH(weth).withdraw(amountOut);
_receiver.sendValue(amountOut);
emit UnstakeGlp(account, _glpAmount);
return amountOut;
} }
function claim() external nonReentrant { function claim() external nonReentrant {
address account = msg.sender; address account = msg.sender;
IRewardTracker(feeGmxTracker).claimForAccount(account, account);
IRewardTracker(feeGlpTracker).claimForAccount(account, account);
IRewardTracker(stakedGmxTracker).claimForAccount(account, account); IRewardTracker(stakedGmxTracker).claimForAccount(account, account);
IRewardTracker(stakedGlpTracker).claimForAccount(account, account);
} }
function claimEsGmx() external nonReentrant { function claimEsGmx() external nonReentrant {
address account = msg.sender; address account = msg.sender;
IRewardTracker(stakedGmxTracker).claimForAccount(account, account); IRewardTracker(stakedGmxTracker).claimForAccount(account, account);
IRewardTracker(stakedGlpTracker).claimForAccount(account, account);
}
function claimFees() external nonReentrant {
address account = msg.sender;
IRewardTracker(feeGmxTracker).claimForAccount(account, account);
IRewardTracker(feeGlpTracker).claimForAccount(account, account);
} }
function compound() external nonReentrant { function compound() external nonReentrant {
@ -246,18 +90,13 @@ contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable {
bool _shouldClaimGmx, bool _shouldClaimGmx,
bool _shouldStakeGmx, bool _shouldStakeGmx,
bool _shouldClaimEsGmx, bool _shouldClaimEsGmx,
bool _shouldStakeEsGmx, bool _shouldStakeEsGmx
bool _shouldStakeMultiplierPoints,
bool _shouldClaimWeth,
bool _shouldConvertWethToEth
) external nonReentrant { ) external nonReentrant {
address account = msg.sender; address account = msg.sender;
uint256 gmxAmount = 0; uint256 gmxAmount = 0;
if (_shouldClaimGmx) { if (_shouldClaimGmx) {
uint256 gmxAmount0 = IVester(gmxVester).claimForAccount(account, account); gmxAmount = IVester(gmxVester).claimForAccount(account, account);
uint256 gmxAmount1 = IVester(glpVester).claimForAccount(account, account);
gmxAmount = gmxAmount0.add(gmxAmount1);
} }
if (_shouldStakeGmx && gmxAmount > 0) { if (_shouldStakeGmx && gmxAmount > 0) {
@ -266,35 +105,12 @@ contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable {
uint256 esGmxAmount = 0; uint256 esGmxAmount = 0;
if (_shouldClaimEsGmx) { if (_shouldClaimEsGmx) {
uint256 esGmxAmount0 = IRewardTracker(stakedGmxTracker).claimForAccount(account, account); esGmxAmount = IRewardTracker(stakedGmxTracker).claimForAccount(account, account);
uint256 esGmxAmount1 = IRewardTracker(stakedGlpTracker).claimForAccount(account, account);
esGmxAmount = esGmxAmount0.add(esGmxAmount1);
} }
if (_shouldStakeEsGmx && esGmxAmount > 0) { if (_shouldStakeEsGmx && esGmxAmount > 0) {
_stakeGmx(account, account, esGmx, esGmxAmount); _stakeGmx(account, account, esGmx, esGmxAmount);
} }
if (_shouldStakeMultiplierPoints) {
_stakeBnGmx(account);
}
if (_shouldClaimWeth) {
if (_shouldConvertWethToEth) {
uint256 weth0 = IRewardTracker(feeGmxTracker).claimForAccount(account, address(this));
uint256 weth1 = IRewardTracker(feeGlpTracker).claimForAccount(account, address(this));
uint256 wethAmount = weth0.add(weth1);
IWETH(weth).withdraw(wethAmount);
payable(account).sendValue(wethAmount);
} else {
IRewardTracker(feeGmxTracker).claimForAccount(account, account);
IRewardTracker(feeGlpTracker).claimForAccount(account, account);
}
}
_syncVotingPower(account);
} }
function batchCompoundForAccounts(address[] memory _accounts) external nonReentrant onlyGov { function batchCompoundForAccounts(address[] memory _accounts) external nonReentrant onlyGov {
@ -303,32 +119,16 @@ contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable {
} }
} }
// the _validateReceiver function checks that the averageStakedAmounts and cumulativeRewards
// values of an account are zero, this is to help ensure that vesting calculations can be
// done correctly
// averageStakedAmounts and cumulativeRewards are updated if the claimable reward for an account
// is more than zero
// it is possible for multiple transfers to be sent into a single account, using signalTransfer and
// acceptTransfer, if those values have not been updated yet
// for GLP transfers it is also possible to transfer GLP into an account using the StakedGlp contract
function signalTransfer(address _receiver) external nonReentrant { function signalTransfer(address _receiver) external nonReentrant {
require(IERC20(gmxVester).balanceOf(msg.sender) == 0, "sender has vested tokens"); require(IERC20(gmxVester).balanceOf(msg.sender) == 0, "sender has vested tokens");
require(IERC20(glpVester).balanceOf(msg.sender) == 0, "sender has vested tokens");
_validateReceiver(_receiver); _validateReceiver(_receiver);
if (inStrictTransferMode) {
uint256 balance = IRewardTracker(feeGmxTracker).stakedAmounts(msg.sender);
uint256 allowance = IERC20(feeGmxTracker).allowance(msg.sender, _receiver);
require(allowance >= balance, "insufficient allowance");
}
pendingReceivers[msg.sender] = _receiver; pendingReceivers[msg.sender] = _receiver;
} }
function acceptTransfer(address _sender) external nonReentrant { function acceptTransfer(address _sender) external nonReentrant {
require(IERC20(gmxVester).balanceOf(_sender) == 0, "sender has vested tokens"); require(IERC20(gmxVester).balanceOf(_sender) == 0, "sender has vested tokens");
require(IERC20(glpVester).balanceOf(_sender) == 0, "sender has vested tokens");
address receiver = msg.sender; address receiver = msg.sender;
require(pendingReceivers[_sender] == receiver, "transfer not signalled"); require(pendingReceivers[_sender] == receiver, "transfer not signalled");
@ -339,79 +139,36 @@ contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable {
uint256 stakedGmx = IRewardTracker(stakedGmxTracker).depositBalances(_sender, gmx); uint256 stakedGmx = IRewardTracker(stakedGmxTracker).depositBalances(_sender, gmx);
if (stakedGmx > 0) { if (stakedGmx > 0) {
_unstakeGmx(_sender, gmx, stakedGmx, false); _unstakeGmx(_sender, gmx, stakedGmx);
_stakeGmx(_sender, receiver, gmx, stakedGmx); _stakeGmx(_sender, receiver, gmx, stakedGmx);
} }
uint256 stakedEsGmx = IRewardTracker(stakedGmxTracker).depositBalances(_sender, esGmx); uint256 stakedEsGmx = IRewardTracker(stakedGmxTracker).depositBalances(_sender, esGmx);
if (stakedEsGmx > 0) { if (stakedEsGmx > 0) {
_unstakeGmx(_sender, esGmx, stakedEsGmx, false); _unstakeGmx(_sender, esGmx, stakedEsGmx);
_stakeGmx(_sender, receiver, esGmx, stakedEsGmx); _stakeGmx(_sender, receiver, esGmx, stakedEsGmx);
} }
uint256 stakedBnGmx = IRewardTracker(feeGmxTracker).depositBalances(_sender, bnGmx);
if (stakedBnGmx > 0) {
IRewardTracker(feeGmxTracker).unstakeForAccount(_sender, bnGmx, stakedBnGmx, _sender);
IRewardTracker(feeGmxTracker).stakeForAccount(_sender, receiver, bnGmx, stakedBnGmx);
}
uint256 esGmxBalance = IERC20(esGmx).balanceOf(_sender); uint256 esGmxBalance = IERC20(esGmx).balanceOf(_sender);
if (esGmxBalance > 0) { if (esGmxBalance > 0) {
IERC20(esGmx).transferFrom(_sender, receiver, esGmxBalance); IERC20(esGmx).transferFrom(_sender, receiver, esGmxBalance);
} }
uint256 bnGmxBalance = IERC20(bnGmx).balanceOf(_sender);
if (bnGmxBalance > 0) {
IMintable(bnGmx).burn(_sender, bnGmxBalance);
IMintable(bnGmx).mint(receiver, bnGmxBalance);
}
uint256 glpAmount = IRewardTracker(feeGlpTracker).depositBalances(_sender, glp);
if (glpAmount > 0) {
IRewardTracker(stakedGlpTracker).unstakeForAccount(_sender, feeGlpTracker, glpAmount, _sender);
IRewardTracker(feeGlpTracker).unstakeForAccount(_sender, glp, glpAmount, _sender);
IRewardTracker(feeGlpTracker).stakeForAccount(_sender, receiver, glp, glpAmount);
IRewardTracker(stakedGlpTracker).stakeForAccount(receiver, receiver, feeGlpTracker, glpAmount);
}
IVester(gmxVester).transferStakeValues(_sender, receiver); IVester(gmxVester).transferStakeValues(_sender, receiver);
IVester(glpVester).transferStakeValues(_sender, receiver);
_syncVotingPower(_sender);
_syncVotingPower(receiver);
} }
function _validateReceiver(address _receiver) private view { function _validateReceiver(address _receiver) private view {
require(IRewardTracker(stakedGmxTracker).averageStakedAmounts(_receiver) == 0, "stakedGmxTracker.averageStakedAmounts > 0"); require(IRewardTracker(stakedGmxTracker).averageStakedAmounts(_receiver) == 0, "stakedGmxTracker.averageStakedAmounts > 0");
require(IRewardTracker(stakedGmxTracker).cumulativeRewards(_receiver) == 0, "stakedGmxTracker.cumulativeRewards > 0"); require(IRewardTracker(stakedGmxTracker).cumulativeRewards(_receiver) == 0, "stakedGmxTracker.cumulativeRewards > 0");
require(IRewardTracker(bonusGmxTracker).averageStakedAmounts(_receiver) == 0, "bonusGmxTracker.averageStakedAmounts > 0");
require(IRewardTracker(bonusGmxTracker).cumulativeRewards(_receiver) == 0, "bonusGmxTracker.cumulativeRewards > 0");
require(IRewardTracker(feeGmxTracker).averageStakedAmounts(_receiver) == 0, "feeGmxTracker.averageStakedAmounts > 0");
require(IRewardTracker(feeGmxTracker).cumulativeRewards(_receiver) == 0, "feeGmxTracker.cumulativeRewards > 0");
require(IVester(gmxVester).transferredAverageStakedAmounts(_receiver) == 0, "gmxVester.transferredAverageStakedAmounts > 0"); require(IVester(gmxVester).transferredAverageStakedAmounts(_receiver) == 0, "gmxVester.transferredAverageStakedAmounts > 0");
require(IVester(gmxVester).transferredCumulativeRewards(_receiver) == 0, "gmxVester.transferredCumulativeRewards > 0"); require(IVester(gmxVester).transferredCumulativeRewards(_receiver) == 0, "gmxVester.transferredCumulativeRewards > 0");
require(IRewardTracker(stakedGlpTracker).averageStakedAmounts(_receiver) == 0, "stakedGlpTracker.averageStakedAmounts > 0");
require(IRewardTracker(stakedGlpTracker).cumulativeRewards(_receiver) == 0, "stakedGlpTracker.cumulativeRewards > 0");
require(IRewardTracker(feeGlpTracker).averageStakedAmounts(_receiver) == 0, "feeGlpTracker.averageStakedAmounts > 0");
require(IRewardTracker(feeGlpTracker).cumulativeRewards(_receiver) == 0, "feeGlpTracker.cumulativeRewards > 0");
require(IVester(glpVester).transferredAverageStakedAmounts(_receiver) == 0, "gmxVester.transferredAverageStakedAmounts > 0");
require(IVester(glpVester).transferredCumulativeRewards(_receiver) == 0, "gmxVester.transferredCumulativeRewards > 0");
require(IERC20(gmxVester).balanceOf(_receiver) == 0, "gmxVester.balance > 0"); require(IERC20(gmxVester).balanceOf(_receiver) == 0, "gmxVester.balance > 0");
require(IERC20(glpVester).balanceOf(_receiver) == 0, "glpVester.balance > 0");
} }
function _compound(address _account) private { function _compound(address _account) private {
_compoundGmx(_account); _compoundGmx(_account);
_compoundGlp(_account);
_syncVotingPower(_account);
} }
function _compoundGmx(address _account) private { function _compoundGmx(address _account) private {
@ -419,126 +176,22 @@ contract RewardRouter is IRewardRouterV2, ReentrancyGuard, Governable {
if (esGmxAmount > 0) { if (esGmxAmount > 0) {
_stakeGmx(_account, _account, esGmx, esGmxAmount); _stakeGmx(_account, _account, esGmx, esGmxAmount);
} }
_stakeBnGmx(_account);
} }
function _compoundGlp(address _account) private {
uint256 esGmxAmount = IRewardTracker(stakedGlpTracker).claimForAccount(_account, _account);
if (esGmxAmount > 0) {
_stakeGmx(_account, _account, esGmx, esGmxAmount);
}
}
function _stakeGmx(address _fundingAccount, address _account, address _token, uint256 _amount) private { function _stakeGmx(address _fundingAccount, address _account, address _token, uint256 _amount) private {
require(_amount > 0, "invalid _amount"); require(_amount > 0, "invalid _amount");
IRewardTracker(stakedGmxTracker).stakeForAccount(_fundingAccount, _account, _token, _amount); IRewardTracker(stakedGmxTracker).stakeForAccount(_fundingAccount, _account, _token, _amount);
IRewardTracker(bonusGmxTracker).stakeForAccount(_account, _account, stakedGmxTracker, _amount);
IRewardTracker(feeGmxTracker).stakeForAccount(_account, _account, bonusGmxTracker, _amount);
_syncVotingPower(_account);
emit StakeGmx(_account, _token, _amount); emit StakeGmx(_account, _token, _amount);
} }
// note that _syncVotingPower is not called here, in functions which function _unstakeGmx(address _account, address _token, uint256 _amount) private {
// call _stakeBnGmx it should be ensured that _syncVotingPower is called
// after
function _stakeBnGmx(address _account) private {
IRewardTracker(bonusGmxTracker).claimForAccount(_account, _account);
// get the bnGmx balance of the user, this would be the amount of
// bnGmx that has not been staked
uint256 bnGmxAmount = IERC20(bnGmx).balanceOf(_account);
if (bnGmxAmount == 0) { return; }
// get the baseStakedAmount which would be the sum of staked gmx and staked esGmx tokens
uint256 baseStakedAmount = IRewardTracker(stakedGmxTracker).stakedAmounts(_account);
uint256 maxAllowedBnGmxAmount = baseStakedAmount.mul(maxBoostBasisPoints).div(BASIS_POINTS_DIVISOR);
uint256 currentBnGmxAmount = IRewardTracker(feeGmxTracker).depositBalances(_account, bnGmx);
if (currentBnGmxAmount == maxAllowedBnGmxAmount) { return; }
// if the currentBnGmxAmount is more than the maxAllowedBnGmxAmount
// unstake the excess tokens
if (currentBnGmxAmount > maxAllowedBnGmxAmount) {
uint256 amountToUnstake = currentBnGmxAmount.sub(maxAllowedBnGmxAmount);
IRewardTracker(feeGmxTracker).unstakeForAccount(_account, bnGmx, amountToUnstake, _account);
return;
}
uint256 maxStakeableBnGmxAmount = maxAllowedBnGmxAmount.sub(currentBnGmxAmount);
if (bnGmxAmount > maxStakeableBnGmxAmount) {
bnGmxAmount = maxStakeableBnGmxAmount;
}
IRewardTracker(feeGmxTracker).stakeForAccount(_account, _account, bnGmx, bnGmxAmount);
}
function _unstakeGmx(address _account, address _token, uint256 _amount, bool _shouldReduceBnGmx) private {
require(_amount > 0, "invalid _amount"); require(_amount > 0, "invalid _amount");
// uint256 balance = IRewardTracker(stakedGmxTracker).stakedAmounts(_account);
uint256 balance = IRewardTracker(stakedGmxTracker).stakedAmounts(_account);
IRewardTracker(feeGmxTracker).unstakeForAccount(_account, bonusGmxTracker, _amount, _account);
IRewardTracker(bonusGmxTracker).unstakeForAccount(_account, stakedGmxTracker, _amount, _account);
IRewardTracker(stakedGmxTracker).unstakeForAccount(_account, _token, _amount, _account); IRewardTracker(stakedGmxTracker).unstakeForAccount(_account, _token, _amount, _account);
if (_shouldReduceBnGmx) {
IRewardTracker(bonusGmxTracker).claimForAccount(_account, _account);
// unstake and burn staked bnGmx tokens
uint256 stakedBnGmx = IRewardTracker(feeGmxTracker).depositBalances(_account, bnGmx);
if (stakedBnGmx > 0) {
uint256 reductionAmount = stakedBnGmx.mul(_amount).div(balance);
IRewardTracker(feeGmxTracker).unstakeForAccount(_account, bnGmx, reductionAmount, _account);
IMintable(bnGmx).burn(_account, reductionAmount);
}
// burn bnGmx tokens from user's balance
uint256 bnGmxBalance = IERC20(bnGmx).balanceOf(_account);
if (bnGmxBalance > 0) {
uint256 amountToBurn = bnGmxBalance.mul(_amount).div(balance);
IMintable(bnGmx).burn(_account, amountToBurn);
}
}
_syncVotingPower(_account);
emit UnstakeGmx(_account, _token, _amount); emit UnstakeGmx(_account, _token, _amount);
} }
function _syncVotingPower(address _account) private {
if (votingPowerType == VotingPowerType.None) {
return;
}
if (votingPowerType == VotingPowerType.BaseStakedAmount) {
uint256 baseStakedAmount = IRewardTracker(stakedGmxTracker).stakedAmounts(_account);
_syncVotingPower(_account, baseStakedAmount);
return;
}
if (votingPowerType == VotingPowerType.BaseAndBonusStakedAmount) {
uint256 stakedAmount = IRewardTracker(feeGmxTracker).stakedAmounts(_account);
_syncVotingPower(_account, stakedAmount);
return;
}
revert("unsupported votingPowerType");
}
function _syncVotingPower(address _account, uint256 _amount) private {
uint256 currentVotingPower = IERC20(govToken).balanceOf(_account);
if (currentVotingPower == _amount) { return; }
if (currentVotingPower > _amount) {
uint256 amountToBurn = currentVotingPower.sub(_amount);
IMintable(govToken).burn(_account, amountToBurn);
return;
}
uint256 amountToMint = _amount.sub(currentVotingPower);
IMintable(govToken).mint(_account, amountToMint);
}
} }