hood// SPDX-License-Identifier: MIT
pragma solidity =0.8.23;
import "@openzeppelin/contracts/access/Ownable2Step.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "./interfaces/INonfungiblePositionManager.sol";
/// @author web3roy
/// @title LiquidityManager
/// @dev Manages liquidity positions for tokens on a decentralized exchange.
/// Includes functionalities for fee collection, burning NFTs, and tracking token positions.
/// Ensures secure and efficient management of liquidity.
contract LiquidityManager is IERC721Receiver, Ownable2Step {
event Constructor(address positionManager);
event FeesCollected(
address indexed collector,
uint256 amount0,
uint256 amount1
);
event SetAuthorizedAddress(address indexed addr, bool isAuthorized);
event NFTBurned(address indexed burner, uint256 tokenId);
event TokenReceived(
address operator,
address from,
uint256 tokenId,
uint256 blockTime
);
uint256[] public tokenList;
mapping(uint256 => uint256) public tokenReceivedTime;
INonfungiblePositionManager public positionManager;
mapping(address => bool) public isAuthorized;
/// @notice Constructor to initialize the LiquidityManager with a position manager address
/// @param _positionManager The address of the Uniswap V3 Nonfungible Position Manager
constructor(address _positionManager) Ownable(msg.sender) {
require(_positionManager != address(0), "Invalid address");
positionManager = INonfungiblePositionManager(_positionManager);
emit Constructor(_positionManager);
}
receive() external payable {}
/// @notice Modifier to check if the caller is authorized to collect fees
modifier onlyAuthorized() {
require(isAuthorized[msg.sender], "Not authorized to collect fees");
_;
}
/// @notice Sets the authorization status of an address
/// @param _address The address to authorize or deauthorize
/// @param _isAuthorized The authorization status (true to authorize, false to deauthorize)
function setAuthorizedAddress(
address _address,
bool _isAuthorized
) external onlyOwner {
require(_address != address(0), "Invalid address");
isAuthorized[_address] = _isAuthorized;
emit SetAuthorizedAddress(_address, _isAuthorized);
}
/// @notice Collects fees for a specific liquidity position
/// @param tokenId The ID of the liquidity position NFT
function collectFees(uint256 tokenId) external onlyAuthorized {
(uint256 amount0, uint256 amount1) = positionManager.collect(
INonfungiblePositionManager.CollectParams({
tokenId: tokenId,
recipient: msg.sender,
amount0Max: type(uint128).max,
amount1Max: type(uint128).max
})
);
emit FeesCollected(msg.sender, amount0, amount1);
}
/// @notice Burns a specific liquidity position NFT
/// @param tokenId The ID of the liquidity position NFT to burn
function burnNFT(uint256 tokenId) external onlyOwner {
require(
block.timestamp >= tokenReceivedTime[tokenId] + 365 days,
"Cannot burn before one year"
);
positionManager.safeTransferFrom(
address(this),
0x000000000000000000000000000000000000dEaD,
tokenId
);
emit NFTBurned(msg.sender, tokenId);
}
/// @notice Retrieves the list of token IDs
/// @return An array of token IDs
function getTokenList() external view returns (uint256[] memory) {
return tokenList;
}
function onERC721Received(
address _operator,
address _from,
uint256 _tokenId,
bytes calldata
) external override returns (bytes4) {
require(
msg.sender == address(positionManager),
"NFT not from positionManager"
);
tokenList.push(_tokenId);
tokenReceivedTime[_tokenId] = block.timestamp;
emit TokenReceived(_operator, _from, _tokenId, block.timestamp);
return this.onERC721Received.selector;
}
/// @notice Prevent accidental renouncement of ownership
function renounceOwnership() public view override onlyOwner {
revert("Cannot renounce ownership");
}
}[
{
"type": "constructor",
"inputs": [
{
"name": "_positionManager",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "nonpayable"
},
{
"name": "OwnableInvalidOwner",
"type": "error",
"inputs": [
{
"name": "owner",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "OwnableUnauthorizedAccount",
"type": "error",
"inputs": [
{
"name": "account",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "Constructor",
"type": "event",
"inputs": [
{
"name": "positionManager",
"type": "address",
"indexed": false,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "FeesCollected",
"type": "event",
"inputs": [
{
"name": "collector",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "amount0",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "amount1",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "NFTBurned",
"type": "event",
"inputs": [
{
"name": "burner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "tokenId",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "OwnershipTransferStarted",
"type": "event",
"inputs": [
{
"name": "previousOwner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "newOwner",
"type": "address",
"indexed": true,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "OwnershipTransferred",
"type": "event",
"inputs": [
{
"name": "previousOwner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "newOwner",
"type": "address",
"indexed": true,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "SetAuthorizedAddress",
"type": "event",
"inputs": [
{
"name": "addr",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "isAuthorized",
"type": "bool",
"indexed": false,
"internalType": "bool"
}
],
"anonymous": false
},
{
"name": "TokenReceived",
"type": "event",
"inputs": [
{
"name": "operator",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "from",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "tokenId",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "blockTime",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "acceptOwnership",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "burnNFT",
"type": "function",
"inputs": [
{
"name": "tokenId",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "collectFees",
"type": "function",
"inputs": [
{
"name": "tokenId",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "getTokenList",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256[]",
"internalType": "uint256[]"
}
],
"stateMutability": "view"
},
{
"name": "isAuthorized",
"type": "function",
"inputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "view"
},
{
"name": "onERC721Received",
"type": "function",
"inputs": [
{
"name": "_operator",
"type": "address",
"internalType": "address"
},
{
"name": "_from",
"type": "address",
"internalType": "address"
},
{
"name": "_tokenId",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "",
"type": "bytes",
"internalType": "bytes"
}
],
"outputs": [
{
"name": "",
"type": "bytes4",
"internalType": "bytes4"
}
],
"stateMutability": "nonpayable"
},
{
"name": "owner",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "pendingOwner",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "positionManager",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "contract INonfungiblePositionManager"
}
],
"stateMutability": "view"
},
{
"name": "renounceOwnership",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "view"
},
{
"name": "setAuthorizedAddress",
"type": "function",
"inputs": [
{
"name": "_address",
"type": "address",
"internalType": "address"
},
{
"name": "_isAuthorized",
"type": "bool",
"internalType": "bool"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "tokenList",
"type": "function",
"inputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "tokenReceivedTime",
"type": "function",
"inputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "transferOwnership",
"type": "function",
"inputs": [
{
"name": "newOwner",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"type": "receive",
"stateMutability": "payable"
}
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| Token | Symbol | Balance | Price | Value |
|---|---|---|---|---|
| no token holdings | ||||
| Type | Age | Block | Details |
|---|---|---|---|
| no cross-chain L1↔L2 transactions for this address | |||
| Transaction Hash | Method | Block | Age | From | To | Amount | Token | ||
|---|---|---|---|---|---|---|---|---|---|
| no token transfers for this address yet | |||||||||
| Txn Hash | Age | Event | Topics / Data |
|---|---|---|---|
| 0xcd201b…5de2a8 | 37 days agoFri, 10 Jul 2026 23:51:17 UTC | 0xd696a3…6daf | [0] 0x000000000000…88290208 data: 0x000000000000000000…00000001 |
| 0x1e19cb…b3cd85 | 37 days agoFri, 10 Jul 2026 23:51:08 UTC | 0x385bc7…45ec | data: 0x000000000000000000…638de0d3 |
| 0x1e19cb…b3cd85 | 37 days agoFri, 10 Jul 2026 23:51:08 UTC | 0x8be007…57e0 | [0] 0x000000000000…00000000 [1] 0x000000000000…88290208 |
| Transaction Hash | Method | Block | Age | From | To | Type | Item | ||
|---|---|---|---|---|---|---|---|---|---|
| no NFT transfers for this address yet | |||||||||
| Block | Age | Parent Transaction Hash | Type | Method | From | To | Value | |
|---|---|---|---|---|---|---|---|---|
| no internal transactions found for this address yet (traced blocks + on-demand) | ||||||||
| Transaction Hash | Method ? | Block | Age | From | To | Amount | Txn Fee ? | ||
|---|---|---|---|---|---|---|---|---|---|
| 0xcd201b…5de2a8 | setAuthorizedAddress | 6,489,069 | 37 days agoFri, 10 Jul 2026 23:51:17 UTC | 0xf61b…0208 | IN | LiquidityManager | $0.000 ETH | 0.00000238 |