per-asset fees

src/IPartyPoolViewer.sol

@@ -34,27 +34,27 @@ interface IPartyPoolViewer {
     /// @param inputTokenIndex index of input token
     /// @param outputTokenIndex index of output token
     /// @param limitPrice target marginal price to reach (must be > 0)
-    /// @return amountIn gross input amount to transfer (includes fee), amountOut output amount user would receive, fee fee amount taken
+    /// @return amountIn gross input amount to transfer (includes fee), amountOut output amount user would receive, inFee fee taken from input amount
     function swapToLimitAmounts(
         IPartyPool pool,
         uint256 inputTokenIndex,
         uint256 outputTokenIndex,
         int128 limitPrice
-    ) external view returns (uint256 amountIn, uint256 amountOut, uint256 fee);
+    ) external view returns (uint256 amountIn, uint256 amountOut, uint256 inFee);
 
     /// @notice Calculate the amounts for a swap mint operation
     /// @dev This is a pure view function that computes swap mint amounts from provided state
     /// @param inputTokenIndex index of the input token
     /// @param maxAmountIn maximum amount of token to deposit (inclusive of fee)
     function swapMintAmounts(IPartyPool pool, uint256 inputTokenIndex, uint256 maxAmountIn) external view
-        returns (uint256 amountInUsed, uint256 fee, uint256 lpMinted);
+        returns (uint256 amountInUsed, uint256 lpMinted, uint256 inFee);
 
     /// @notice Calculate the amounts for a burn swap operation
     /// @dev This is a pure view function that computes burn swap amounts from provided state
     /// @param lpAmount amount of LP _tokens to burn
     /// @param outputTokenIndex index of target asset to receive
     function burnSwapAmounts(IPartyPool pool, uint256 lpAmount, uint256 outputTokenIndex) external view
-        returns (uint256 amountOut);
+        returns (uint256 amountOut, uint256 outFee);
 
     /// @notice Compute repayment amounts (principal + flash fee) for a proposed flash loan.
     /// @param loanAmounts array of per-token loan amounts; must match the pool's token ordering.