Super DCA

// SPDX-License-Identifier: Apache-2.0
function getHookPermissions() public pure override returns (Hooks.Permissions memory) {
    return Hooks.Permissions({
        beforeInitialize: true,
        afterInitialize: true,
        beforeAddLiquidity: true,
        afterAddLiquidity: false,
        beforeRemoveLiquidity: true,
        afterRemoveLiquidity: false,
        beforeSwap: true,
        afterSwap: false,
        beforeDonate: false,
        afterDonate: false,
        beforeSwapReturnDelta: false,
        afterSwapReturnDelta: false,
        afterAddLiquidityReturnDelta: false,
        afterRemoveLiquidityReturnDelta: false
    });
}

function _beforeSwap(address sender, PoolKey calldata key, IPoolManager.SwapParams calldata, bytes calldata hookData)
    internal
    override
    returns (bytes4, BeforeSwapDelta, uint24)
{
    if (!verifiedRouters[sender]) revert SuperDCAGauge__UnauthorizedRouter();
    address swapper = IMsgSender(sender).msgSender();
    uint24 fee = isInternalAddress[swapper] ? internalFee : swapper == keeper ? keeperFee : externalFee;
    if (!isInternalAddress[swapper] && swapper != keeper) _handleDistributionAndSettlement(key, hookData);
    return (IHooks.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, fee | LPFeeLibrary.OVERRIDE_FEE_FLAG);
}