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feat: add position manager helper -- only check balance after #90

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feat: add position manager helper -- only check balance after #90

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4280930
feat: only check balance after
ChefMist Jul 24, 2025
aec129f
Merge branch 'feat/add-liquidity-helper' into feat/add-liquidity-help…
ChefMist Jul 29, 2025
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18 changes: 7 additions & 11 deletions src/pool-bin/BinPositionManagerHelper.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ contract BinPositionManagerHelper is Multicall, Permit2Forwarder, ReentrancyLock
/// @notice Add liquidities to bin pool with slippage protection
/// @param payload - encoded actions and parameters for bin position manager
/// @param deadline - deadline for the transaction
/// @param minLiquidityParam - amount of [binId, liquidity] to mint
/// @param minLiquidityParam - amount of [binId, liquidity] on user wallet - user should check user current balance before this call as well
/// @dev This function only support 1 BIN_ADD_LIQUIDITY call
function addLiquidities(bytes calldata payload, uint256 deadline, MinLiquidityParams memory minLiquidityParam)
external
Expand All @@ -93,7 +93,10 @@ contract BinPositionManagerHelper is Multicall, Permit2Forwarder, ReentrancyLock
permit2.transferFrom(msg.sender, address(this), liquidityParams.amount1Max, Currency.unwrap(currency1));
_approveBinPm(currency1, liquidityParams.amount1Max);

// Step 3a: Before Check user balance before
// Step 3a: modify liquidities
binPositionManager.modifyLiquidities{value: msg.value}(payload, deadline);

// Step 3b: Check user balance after
address[] memory owners = new address[](minLiquidityParam.binIds.length);
uint256[] memory tokenIds = new uint256[](minLiquidityParam.binIds.length);
PoolId poolId = liquidityParams.poolKey.toId();
Expand All @@ -105,17 +108,10 @@ contract BinPositionManagerHelper is Multicall, Permit2Forwarder, ReentrancyLock
tempBinId = minLiquidityParam.binIds[i];
tokenIds[i] = poolId.toTokenId(tempBinId);
}
uint256[] memory balBefore = binPositionManager.balanceOfBatch(owners, tokenIds);

// Step 3b: modify liquidities
binPositionManager.modifyLiquidities{value: msg.value}(payload, deadline);

// Step 3c: Check user balance after
uint256[] memory balAfter = binPositionManager.balanceOfBatch(owners, tokenIds);
for (uint256 i = 0; i < minLiquidityParam.minLiquidities.length; i++) {
uint256 liquidityAdded = balAfter[i] - balBefore[i];
if (liquidityAdded < minLiquidityParam.minLiquidities[i]) {
revert SlippageCheck(minLiquidityParam.binIds[i], liquidityAdded);
if (balAfter[i] < minLiquidityParam.minLiquidities[i]) {
revert SlippageCheck(minLiquidityParam.binIds[i], balAfter[i]);
}
}

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