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net apr logic fix #56

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Apr 11, 2024
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net apr logic fix #56

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16 changes: 15 additions & 1 deletion contracts/ionic/strategies/flywheel/IonicFlywheelLensRouter.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -189,7 +189,21 @@ contract IonicFlywheelLensRouter {
ICErc20 market,
int256 blocksPerYear
) internal returns (int256) {
return (int256(market.supplyRatePerBlock()) - int256(market.borrowRatePerBlock())) * blocksPerYear;
uint256 borrows = market.borrowBalanceCurrent(user);
uint256 supplied = market.balanceOfUnderlying(user);
uint256 supplyRatePerBlock = market.supplyRatePerBlock();
uint256 borrowRatePerBlock = market.borrowRatePerBlock();

IonicComptroller comptroller = market.comptroller();
BasePriceOracle oracle = comptroller.oracle();
uint256 assetPrice = oracle.getUnderlyingPrice(market);
uint256 collateralValue = (supplied * assetPrice) / 1e18;
uint256 borrowsValue = (borrows * assetPrice) / 1e18;

uint256 yieldValuePerBlock = (collateralValue * supplyRatePerBlock) / 1e18;
uint256 interestOwedValuePerBlock = (borrowsValue * borrowRatePerBlock) / 1e18;

return ((int256(yieldValuePerBlock) - int256(interestOwedValuePerBlock)) * blocksPerYear) / int256(collateralValue);
}

struct AdjustedUserNetAprVars {
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