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feat: add safe bridge check #1140

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Merged
merged 2 commits into from
Oct 17, 2025
Merged

feat: add safe bridge check #1140

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5baa947
Add function for checking if bridge amount is safe
tbwebb22 Oct 17, 2025
d4d615b
fix function natspec
tbwebb22 Oct 17, 2025
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22 changes: 21 additions & 1 deletion contracts/libraries/HyperCoreLib.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -219,7 +219,7 @@ library HyperCoreLib {
* @param index The asset index to get the spot price of
* @return spotPx The spot price of the specified asset on HyperCore scaled by 1e8
*/
function spotPx(uint32 index) external view returns (uint64) {
function spotPx(uint32 index) internal view returns (uint64) {
(bool success, bytes memory result) = SPOT_PX_PRECOMPILE_ADDRESS.staticcall(abi.encode(index));
if (!success) revert SpotPxPrecompileCallFailed();
return abi.decode(result, (uint64));
Expand All @@ -237,6 +237,26 @@ library HyperCoreLib {
return _tokenInfo;
}

/**
* @notice Checks if an amount is safe to bridge from HyperEVM to HyperCore
* @dev Verifies that the asset bridge has sufficient balance to cover the amount plus a buffer
* @param erc20CoreIndex The HyperCore index id of the token
* @param coreAmount The amount that the bridging should result in on HyperCore
* @param coreBufferAmount The minimum buffer amount that should remain on HyperCore after bridging
* @return True if the bridge has enough balance to safely bridge the amount, false otherwise
*/
function isCoreAmountSafeToBridge(
uint64 erc20CoreIndex,
uint64 coreAmount,
uint64 coreBufferAmount
) internal view returns (bool) {
address bridgeAddress = toAssetBridgeAddress(erc20CoreIndex);
uint64 currentBridgeBalance = spotBalance(bridgeAddress, erc20CoreIndex);

// Return true if currentBridgeBalance >= coreAmount + coreBufferAmount
return currentBridgeBalance >= coreAmount + coreBufferAmount;
}

/**
* @notice Converts a core index id to an asset bridge address
* @param erc20CoreIndex The core token index id to convert
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