tycho-execution 0.302.5

Provides tools for encoding and executing swaps against Tycho router and protocol executors.
Documentation 
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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.26;

import {FeeRecipient} from "../lib/FeeStructs.sol";

interface IFeeCalculator {
    /**
     * @notice Calculates fees from the swap output amount
     * @dev Called from TychoRouter. Does not perform any accounting.
     *      Router fee parameters are retrieved from contract storage based on the user address.
     *      Client fee parameters are passed as function arguments.
     * @param amountIn The amount before fee deduction
     * @param client The client address to look up custom router fees for and to receive fees
     * @param clientFeeBps Client fee in basis points
     * @return amountOut The amount remaining after all fee deductions
     * @return feeRecipients Array of (address, feeAmount) tuples for fee distribution
     */
    function calculateFee(
        uint256 amountIn,
        address client,
        uint16 clientFeeBps
    )
        external
        view
        returns (uint256 amountOut, FeeRecipient[] memory feeRecipients);

    /**
     * @dev Returns the effective router fee on output amount for a specific client
     * @param client The client address to check
     * @return The fee in basis points (custom if set, otherwise default)
     */
    function getEffectiveRouterFeeOnOutput(address client)
    external
    view
    returns (uint16);
}