49 lines
1.8 KiB
Solidity
49 lines
1.8 KiB
Solidity
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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/**
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* @notice this contract should store ether for gas compensations and also retrieve the basefee
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* @dev modified for non constant governance address and simpler code
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* */
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contract GasCompensationVault {
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address public immutable GovernanceAddress;
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modifier onlyGovernance() {
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require(msg.sender == GovernanceAddress, "only gov");
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_;
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}
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constructor(address _governance) {
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GovernanceAddress = _governance;
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}
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/**
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* @notice function to compensate gas by sending amount eth to a recipient
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* @param recipient address to receive amount eth
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* @param gasAmount the amount of gas to be compensated
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* */
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function compensateGas(address recipient, uint256 gasAmount) external onlyGovernance {
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uint256 vaultBalance = address(this).balance;
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uint256 toCompensate = gasAmount * block.basefee;
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if (vaultBalance == 0) return;
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//payable(recipient).send((toCompensate > vaultBalance) ? vaultBalance : toCompensate);
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(bool success, ) = recipient.call{ value: (toCompensate > vaultBalance) ? vaultBalance : toCompensate }('');
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require(success, "compensate gas failed");
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}
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/**
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* @notice function to withdraw compensate eth back to governance
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* @param amount the amount of eth to withdraw back to governance
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* */
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function withdrawToGovernance(uint256 amount) external onlyGovernance {
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uint256 vaultBalance = address(this).balance;
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//require(GovernanceAddress.sendEther((amount > vaultBalance) ? vaultBalance : amount), "pay fail");
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(bool success, ) = GovernanceAddress.call{ value: (amount > vaultBalance) ? vaultBalance : amount }('');
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require(success, "pay fail");
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}
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/**
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* @notice receive ether function, does nothing but receive ether
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* */
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receive() external payable {}
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}
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