-
Notifications
You must be signed in to change notification settings - Fork 18
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
7 changed files
with
278 additions
and
68 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity >=0.8.0; | ||
|
|
||
| import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; | ||
| import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; | ||
| import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; | ||
| import "@openzeppelin/contracts-upgradeable/utils/math/SafeMathUpgradeable.sol"; | ||
|
|
||
| /** | ||
| * to be deployed on base to support superfluid airdrop to G$ users | ||
| */ | ||
| contract SuperfluidFaucet is | ||
| Initializable, | ||
| UUPSUpgradeable, | ||
| AccessControlUpgradeable | ||
| { | ||
| using SafeMathUpgradeable for uint256; | ||
|
|
||
| bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE"); | ||
|
|
||
| uint256 public toppingAmount; | ||
| uint256 public maxAmountPerPeriod; | ||
| uint256 public toppingPeriod; | ||
|
|
||
| struct RecipientInfo { | ||
| uint256 lastWithdrawalPeriod; | ||
| uint256 totalWithdrawnThisPeriod; | ||
| } | ||
|
|
||
| mapping(address => RecipientInfo) public recipientInfo; | ||
|
|
||
| event WalletTopped(address recipient, uint256 amount); | ||
| event SettingsUpdated( | ||
| uint256 toppingAmount, | ||
| uint256 maxAmountPerPeriod, | ||
| uint256 toppingPeriod | ||
| ); | ||
|
|
||
| /// @custom:oz-upgrades-unsafe-allow constructor | ||
| constructor() { | ||
| _disableInitializers(); | ||
| } | ||
|
|
||
| function initialize( | ||
| uint256 _toppingAmount, | ||
| uint256 _maxAmountPerPeriod, | ||
| uint256 _toppingPeriod | ||
| ) public initializer { | ||
| __AccessControl_init(); | ||
| __UUPSUpgradeable_init(); | ||
|
|
||
| _setupRole(DEFAULT_ADMIN_ROLE, msg.sender); | ||
| _setupRole(ADMIN_ROLE, msg.sender); | ||
| toppingAmount = _toppingAmount; | ||
| maxAmountPerPeriod = _maxAmountPerPeriod; | ||
| toppingPeriod = _toppingPeriod; | ||
| } | ||
|
|
||
| function updateSettings( | ||
| uint256 _toppingAmount, | ||
| uint256 _maxAmountPerPeriod, | ||
| uint256 _toppingPeriod | ||
| ) external onlyRole(ADMIN_ROLE) { | ||
| toppingAmount = _toppingAmount; | ||
| maxAmountPerPeriod = _maxAmountPerPeriod; | ||
| toppingPeriod = _toppingPeriod; | ||
| emit SettingsUpdated(_toppingAmount, _maxAmountPerPeriod, _toppingPeriod); | ||
| } | ||
|
|
||
| function canTop(address recipient) public view returns (bool) { | ||
| if (recipient == address(0)) return false; | ||
| if (recipient.balance >= toppingAmount / 2) return false; | ||
|
|
||
| uint256 amountToSend = toppingAmount.sub(recipient.balance); | ||
| if (address(this).balance < amountToSend) return false; | ||
|
|
||
| uint256 currentPeriod = block.timestamp / toppingPeriod; | ||
| RecipientInfo storage info = recipientInfo[recipient]; | ||
|
|
||
| if (currentPeriod > info.lastWithdrawalPeriod) { | ||
| return true; // New period, reset counters | ||
| } | ||
|
|
||
| if (info.totalWithdrawnThisPeriod.add(amountToSend) > maxAmountPerPeriod) | ||
| return false; | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| function topWallet(address payable recipient) external onlyRole(ADMIN_ROLE) { | ||
| require(canTop(recipient), "Recipient cannot be topped up"); | ||
|
|
||
| uint256 currentPeriod = block.timestamp / toppingPeriod; | ||
| RecipientInfo storage info = recipientInfo[recipient]; | ||
|
|
||
| if (currentPeriod > info.lastWithdrawalPeriod) { | ||
| info.totalWithdrawnThisPeriod = 0; | ||
| info.lastWithdrawalPeriod = currentPeriod; | ||
| } | ||
|
|
||
| uint256 amountToSend = toppingAmount.sub(recipient.balance); | ||
| require( | ||
| address(this).balance >= amountToSend, | ||
| "Insufficient contract balance for topping up" | ||
| ); | ||
|
|
||
| info.totalWithdrawnThisPeriod = info.totalWithdrawnThisPeriod.add( | ||
| amountToSend | ||
| ); | ||
|
|
||
| (bool success, ) = recipient.call{ value: amountToSend }(""); | ||
| require(success, "Failed to send Ether"); | ||
|
|
||
| emit WalletTopped(recipient, amountToSend); | ||
| } | ||
|
|
||
| receive() external payable {} | ||
|
|
||
| function withdraw() external onlyRole(DEFAULT_ADMIN_ROLE) { | ||
| uint256 balance = address(this).balance; | ||
| payable(msg.sender).transfer(balance); | ||
| } | ||
|
|
||
| function _authorizeUpgrade( | ||
| address newImplementation | ||
| ) internal override onlyRole(DEFAULT_ADMIN_ROLE) {} | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.