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0x42088efe536e86470ebc72c477be05d86396d7ec0eaf03ed5cd2da436f30ea2d Claim Reward(pending)2026-02-19 5:34:273 days ago1771479267IN
ETHGas: Airdrop
0 ETH(Pending)(Pending)
0xba5e77e43f85e17dbc54be17c67c945ef743dac313079ca5bbdc6e659a0e92b6 Claim Reward(pending)2026-02-19 4:58:403 days ago1771477120IN
ETHGas: Airdrop
0 ETH(Pending)(Pending)
0x1cb52a0c32fc8ad4c5646a3269f5d8668e5cd5a5ad35d66540f87e8f1b7fdb78 Claim Reward(pending)2026-02-19 4:14:283 days ago1771474468IN
ETHGas: Airdrop
0 ETH(Pending)(Pending)
Claim Reward245111402026-02-22 8:13:3523 mins ago1771748015IN
ETHGas: Airdrop
0 ETH0.000017090.04222713
Claim Reward245105632026-02-22 6:17:352 hrs ago1771741055IN
ETHGas: Airdrop
0 ETH0.000018480.04576335
Claim Reward245104792026-02-22 6:00:472 hrs ago1771740047IN
ETHGas: Airdrop
0 ETH0.000012970.03204725
Claim Reward245104222026-02-22 5:49:232 hrs ago1771739363IN
ETHGas: Airdrop
0 ETH0.000829872.03397867
Claim Reward245071032026-02-21 18:41:5913 hrs ago1771699319IN
ETHGas: Airdrop
0 ETH0.000034290.08473198
Claim Reward245066062026-02-21 17:02:2315 hrs ago1771693343IN
ETHGas: Airdrop
0 ETH0.000075150.18570037
Claim Reward245054102026-02-21 13:02:3519 hrs ago1771678955IN
ETHGas: Airdrop
0 ETH0.000828342.04688124
Claim Reward245053882026-02-21 12:58:1119 hrs ago1771678691IN
ETHGas: Airdrop
0 ETH0.000828462.04681511
Claim Reward245053302026-02-21 12:46:3519 hrs ago1771677995IN
ETHGas: Airdrop
0 ETH0.000826252.04522668
Claim Reward245051412026-02-21 12:08:4720 hrs ago1771675727IN
ETHGas: Airdrop
0 ETH0.000016670.04120932
Claim Reward245050092026-02-21 11:41:5920 hrs ago1771674119IN
ETHGas: Airdrop
0 ETH0.000825792.04417997
Claim Reward245041332026-02-21 8:45:5923 hrs ago1771663559IN
ETHGas: Airdrop
0 ETH0.000033220.08209786
Claim Reward245039682026-02-21 8:12:5924 hrs ago1771661579IN
ETHGas: Airdrop
0 ETH0.000049780.12299468
Claim Reward245038412026-02-21 7:47:3524 hrs ago1771660055IN
ETHGas: Airdrop
0 ETH0.000024140.0596445
Claim Reward245024122026-02-21 3:00:4729 hrs ago1771642847IN
ETHGas: Airdrop
0 ETH0.00082492.03811839
Claim Reward245024002026-02-21 2:58:2329 hrs ago1771642703IN
ETHGas: Airdrop
0 ETH0.000825452.03949493
Claim Reward245023822026-02-21 2:54:4729 hrs ago1771642487IN
ETHGas: Airdrop
0 ETH0.000825532.03956482
Claim Reward245010822026-02-20 22:33:5934 hrs ago1771626839IN
ETHGas: Airdrop
0 ETH0.00003090.07574973
Claim Reward244991472026-02-20 16:06:1140 hrs ago1771603571IN
ETHGas: Airdrop
0 ETH0.00010040.24820544
Claim Reward244988612026-02-20 15:08:3541 hrs ago1771600115IN
ETHGas: Airdrop
0 ETH0.000047131
Claim Reward244982062026-02-20 12:56:5943 hrs ago1771592219IN
ETHGas: Airdrop
0 ETH0.000827812.045256
Claim Reward244979582026-02-20 12:07:2344 hrs ago1771589243IN
ETHGas: Airdrop
0 ETH0.000017690.04372677
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Contract Source Code Verified (Exact Match)

Contract Name:
EthgasRebate

Compiler Version
v0.8.28+commit.7893614a

Optimization Enabled:
Yes with 20000 runs

Other Settings:
paris EvmVersion
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import {IERC20} from "./dependencies/openzeppelin-v5.0.1/token/IERC20.sol";
import {SafeERC20} from "./dependencies/openzeppelin-v5.0.1/token/SafeERC20.sol";
import {MerkleProof} from "./dependencies/openzeppelin-v5.0.1/utils/MerkleProof.sol";
import "./dependencies/openzeppelin-v5.0.1/utils/Pausable.sol";
import "./interfaces/IACLManager.sol";
import  "./interfaces/IEthgasRebate.sol";
import {IVotingEscrow} from "./interfaces/IVotingEscrow.sol";
import "./libraries/InputValidator.sol";
import "./dependencies/openzeppelin-v5.0.1/utils/ReentrancyGuard.sol";

contract EthgasRebate is Pausable, IEthgasRebate, ReentrancyGuard {

    using SafeERC20 for IERC20;

    IACLManager public aclManager;
    IWETH public immutable weth;
    IERC20 public immutable ethgasToken;
    IVotingEscrow public immutable veToken;

    struct MerkleRootInfo {
        bool isStake;
        uint248 minUnlockDuration;
    }
    // category --> MerkleRootInfo
    mapping(bytes32 => MerkleRootInfo) public merkleRootInfo;
    // category --> merkleRoot
    mapping(bytes32 => bytes32) public merkleRoot;
    bool public isRestrictedMode;
    
    // user address --> category --> merkleRoot --> isClaimed
    mapping(address => mapping(bytes32 => mapping(bytes32 => bool))) public rewardClaimed;
    mapping(address => uint256) public dailyWithdrawalCap;
	mapping(address => uint256) public currentDailyWithdrawalAmount;
	mapping(address => uint256) public lastWithdrawalTime;
    mapping(address => bool) public depositWhitelist;
    
    constructor(IACLManager _aclManager, address[] memory _token, uint256[] memory _cap, IWETH _weth, IERC20 _ethgasToken, IVotingEscrow _veToken) {
        InputValidator.validateAddr(address(_aclManager));
        if (_token.length != _cap.length) {
            revert InvalidArrayLength();
        }
        aclManager = _aclManager;
        uint256 length = _token.length;
        weth = _weth;
        ethgasToken = _ethgasToken;
        veToken = _veToken;
        for (uint256 i = 0; i < length; i++) {
            InputValidator.validateAddr(_token[i]);
            dailyWithdrawalCap[_token[i]] = _cap[i];
            emit DailyWithdrawalCapChanged(_token[i], _cap[i]);
        }
    }

    modifier onlyPauserRole() {
		aclManager.checkPauserRole(msg.sender);
		_;
	}

    modifier onlyAdminRole() {
		aclManager.checkAdminRole(msg.sender);
		_;
	}

    modifier onlyTimelockRole() {
		aclManager.checkTimelockRole(msg.sender);
		_;
	}

    modifier onlyBookKeeperRole() {
		aclManager.checkBookKeeperRole(msg.sender);
		_;
	}

    modifier onlyDepositor() {
		if (depositWhitelist[msg.sender] == false) {
            revert DepositNotAllowed();
        }
		_;
	}
    
    function pause() external onlyPauserRole {
        _pause();
    }

    function unpause() external onlyAdminRole {
        _unpause();
    }
    

    function setAclManager(IACLManager _aclManager) external onlyTimelockRole whenNotPaused {
		InputValidator.validateAddr(address(_aclManager));
        aclManager = _aclManager;
        emit AclManagerChanged(address(_aclManager));
	}



    function setDailyWithdrawalCap(address _token, uint256 _cap) external onlyAdminRole whenNotPaused {
        InputValidator.validateAddr(_token);
		dailyWithdrawalCap[_token] = _cap;
		emit DailyWithdrawalCapChanged(_token, _cap);
	}

    function startRestrictedMode() external onlyBookKeeperRole whenNotPaused {
        isRestrictedMode = true;
        emit RestrictedModeUpdated(true);
    }

    function endRestrictedMode() external onlyBookKeeperRole whenNotPaused {
        isRestrictedMode = false;
        emit RestrictedModeUpdated(false);
    }

    function setDepositorWhitelist(address[] calldata _depositorAddr, bool[] calldata _status) external onlyBookKeeperRole whenNotPaused {
        if (_depositorAddr.length != _status.length) {
            revert InvalidArrayLength();
        }
        for (uint i; i < _depositorAddr.length; i++) {
            InputValidator.validateAddr(_depositorAddr[i]);
            depositWhitelist[_depositorAddr[i]] = _status[i];
            emit DepositWhitelistStatusChanged(_depositorAddr[i], _status[i]);
        }
	}

    function updateMerkleRoot(bytes32 _newMerkleRoot, bytes32 _category) external onlyBookKeeperRole whenNotPaused {
        // can only update when restricted mode is on
        if (!isRestrictedMode) {
            revert RestrictedModeOff();
        }
        if (_newMerkleRoot == 0) {
            revert InvalidMerkleRoot();
        }
        merkleRoot[_category] = _newMerkleRoot;
        emit MerkleRootUpdated(_newMerkleRoot, _category);
    }

    function updateMerkleRootInfo(bool _isStake, uint248 _minUnlockDuration, bytes32 _category) external onlyBookKeeperRole whenNotPaused {
        // can only update when restricted mode is on
        if (!isRestrictedMode) {
            revert RestrictedModeOff();
        }
        merkleRootInfo[_category] = MerkleRootInfo(_isStake, _minUnlockDuration);
        emit MerkleRootInfoUpdated(_isStake, _minUnlockDuration, _category);
    }

    // users have to claim all token and all primary & sub wallets at once otherwise the root is marked as claimed
    function claimReward(
        ClaimEntry[] calldata _entries,
        address[] calldata _tokens,
        bytes32[] calldata _merkleProof,
        bytes32 _category,
        bool _isStake,
        uint256 _initUnlockTime // only useful for users without any lock before
    ) external nonReentrant whenNotPaused {
        // can only claim when restricted mode is off
        if (isRestrictedMode) {
            revert RestrictedModeOn();
        }
        if(rewardClaimed[msg.sender][_category][merkleRoot[_category]]) {
            revert RewardAlreadyClaimed();
        }
        rewardClaimed[msg.sender][_category][merkleRoot[_category]] = true;
        if (_entries.length == 0) {
            revert InvalidArrayLength();
        }
        if (_entries[0].user != msg.sender) { // primary wallet address
            revert UnauthorizedClaim();
        }
        TokenClaim[] memory tokenClaims = new TokenClaim[](_tokens.length);
        for (uint256 i = 0; i < _tokens.length; i++) {
            tokenClaims[i].token = _tokens[i];
        }

        bytes memory packed;
        for (uint256 i = 0; i < _entries.length; i++) {
            packed = bytes.concat(packed, abi.encodePacked(_entries[i].user, _entries[i].token, _entries[i].claimAmount));
            for (uint256 j = 0; j < _tokens.length; j++) {
                if (tokenClaims[j].token == _entries[i].token) {
                    tokenClaims[j].totalClaimAmount += _entries[i].claimAmount;
                    break;
                }
            }
        }

        // Create leaf node
        bytes32 leaf = keccak256(abi.encodePacked(packed));
        // Verify the proof
        if(!MerkleProof.verify(_merkleProof, merkleRoot[_category], leaf)) {
            revert InvalidProof();
        }
        
        for (uint256 i = 0; i < _tokens.length; i++) {
            address token = _tokens[i];
            uint256 totalClaimAmount = tokenClaims[i].totalClaimAmount;
            if (totalClaimAmount == 0) {
                continue;
            }

            // reset limit after a day
            if (block.timestamp - lastWithdrawalTime[token] > 1 days) {
                lastWithdrawalTime[token] = block.timestamp;
                currentDailyWithdrawalAmount[token] = 0;
            }

            if (currentDailyWithdrawalAmount[token] + totalClaimAmount <= dailyWithdrawalCap[token]) {
                currentDailyWithdrawalAmount[token] += totalClaimAmount;
                if(IERC20(token).balanceOf(address(this)) < totalClaimAmount) {
                    revert RewardPoolOutOfFunds();
                }
                if (merkleRootInfo[_category].isStake && !_isStake) {
                    revert StakeRequired();
                }
                if (_isStake && token == address(ethgasToken)) {
                    IVotingEscrow.LockedBalance memory l = veToken.locked(msg.sender);
                    ethgasToken.approve(address(veToken), totalClaimAmount);
                    if (l.end > block.timestamp) {
                        if (l.end - block.timestamp < uint256(merkleRootInfo[_category].minUnlockDuration)) {
                            revert InvalidUnlockTime();
                        }
                        veToken.increase_amount_for(msg.sender, totalClaimAmount);
                        emit RewardStaked(msg.sender, totalClaimAmount, 0);
                    } else if (l.amount == 0) {
                        if (_initUnlockTime <= block.timestamp) { 
                            revert InvalidUnlockTime();
                        }
                        if (_initUnlockTime - block.timestamp < uint256(merkleRootInfo[_category].minUnlockDuration)) {
                            revert InvalidUnlockTime();
                        }
                        veToken.create_lock_for(msg.sender, totalClaimAmount, _initUnlockTime);
                        emit RewardStaked(msg.sender, totalClaimAmount, _initUnlockTime);
                    } else {
                        revert CannotStakeForExpiredLock();
                    }

                } else {
                    IERC20(token).safeTransfer(msg.sender, totalClaimAmount);
                }
                emit RewardClaimed(msg.sender, token, totalClaimAmount);
            } else {
                revert DailyWithdrawalCapReached();
            }
        }
    }

    function adminWithdraw(address _tokenAddr, address _receiver, uint256 _amount) external onlyTimelockRole whenNotPaused {
        IERC20(_tokenAddr).safeTransfer(_receiver, _amount);
        emit Withdrawal(_tokenAddr, _receiver, _amount);
    }

    function deposit() payable external onlyDepositor nonReentrant whenNotPaused {
        if(msg.value > 0) {
            IWETH(weth).deposit{value: msg.value}(); 
            emit Deposit(address(weth), msg.sender, msg.value);
        } else {
            revert InvalidDepositAmount();
        }
    }

    function deposit(address[] calldata _tokenAddr, uint256[] calldata _amount) external onlyDepositor nonReentrant whenNotPaused {
        if (_tokenAddr.length != _amount.length) {
            revert InvalidArrayLength();
        }
        for (uint256 i; i < _tokenAddr.length; i++) {
            IERC20(_tokenAddr[i]).safeTransferFrom(msg.sender, address(this), _amount[i]);
            emit Deposit(_tokenAddr[i], msg.sender, _amount[i]);
        }
    }

    
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Permit} from "./IERC20Permit.sol";
import {Address} from "../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.20;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the Merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates Merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     *@dev The multiproof provided is not valid.
     */
    error MerkleProofInvalidMultiproof();

    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     */
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Sorts the pair (a, b) and hashes the result.
     */
    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    /**
     * @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
     */
    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "./Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    bool private _paused;

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;

interface IACLManager {

    function checkAdminRole(address _account) external view;
    function checkTreasurerRole(address _account) external view;
    function checkTimelockRole(address _account) external view;
    function checkPauserRole(address _account) external view;
    function checkBookKeeperRole(address _account) external view;
    function checkPayouterRole(address _account) external view;
    function checkOtherRole1(address _account) external view;
    function checkOtherRole2(address _account) external view;
    function checkOtherRole3(address _account) external view;

}

File 11 of 15 : IEthgasPool.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;


interface IEthgasPool {


	struct TokenTransfer {
		address token;
		uint256 amount;
	}

	error InvalidParamLength();
	error InvalidBlockNumber();
	error CannotSendEthDirectly();
	
	event DepositsTriggered(
		address indexed sender,
		TokenTransfer[] transfers
	);

	event Withdrawal(
		address indexed clientAddress,
		IEthgasPool.TokenTransfer tokenTranfer
	);

	event AclManagerChanged(address aclManager);

	event DailyWithdrawalCapChanged(
		address token, uint256 cap
	);

	event DailyPayoutCapChanged(
		address token, uint256 cap
	);

	event SupportedTokenChanged(
		address token, bool isSupport
	);

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "./IACLManager.sol";


/// @title Staking Pool Interface
/// @notice An interface containing externally accessible functions of the StakingPool contract
/// @dev The automatically generated public view functions for the state variables and mappings are not included in the interface
interface IEthgasRebate{

    /*//////////////////////////////////////////////////////////////
                            Errors
    //////////////////////////////////////////////////////////////*/

    error MerkleRootNotSet(); // Thrown when the claimReward function is called but not Merkle Root is stored in contract.
    error InvalidMerkleRoot(); // Thrown when if the merkle root to be updated is invalid
    error InvalidProof(); //Thrown if the token as already been enabled or disabled 
    error RewardAlreadyClaimed(); // Thrown if staker attempts to call deposit() with zero amount
    error RewardPoolOutOfFunds(); //Thrown if staker attempts to call withdraw() with zero amount
    error DailyWithdrawalCapReached(); // Thrown if the withdrawal hits the daily withdrawal cap for the particular token.
    error RestrictedModeOn(); // Thrown if users claim reward when restricted mode on.
    error RestrictedModeOff(); // Thrown if merkle root is updated when restricted mode off.
    error InvalidArrayLength();
    error InvalidDepositAmount(); //Thrown if user does not have sufficient balance to deposit
    error DepositNotAllowed(); //Thrown if user is not whitelisted for deposits. 
    error UnauthorizedClaim(); // Thrown if primary wallet of the claim entry is not msg.sender
    error StakeRequired(); // Thrown if staking is required for the merkle tree category but the user refuses to stake
    error InvalidUnlockTime(); // Thrown if user specified unlock time is less than the min unlock time of the merkle tree category
    error CannotStakeForExpiredLock();
    

    /*//////////////////////////////////////////////////////////////
                            Staker Events
    //////////////////////////////////////////////////////////////*/

    ///@notice Emitted an reward is successfully claimed. 
    ///@param user The user that is conducting the claim. 
    ///@param token The token that the user is claiming
    ///@param amount The amount of the reward to be claimed. 
    event RewardClaimed(address user, address token, uint256 amount);

    ///@notice Emitted an reward is successfully staked. 
    ///@param user The user that is conducting the stake. 
    ///@param amount The amount of the reward to be staked. 
    event RewardStaked(address user, uint256 amount, uint256 initUnlockTime);
    
    
    ///@notice Emitted when the Merkle Root of this contract is updated. 
    ///@param newRoot The root to be updated to. 
    event MerkleRootUpdated(bytes32 newRoot, bytes32 category);

    event MerkleRootInfoUpdated(bool isStake, uint256 minUnlockDuration, bytes32 category);

    ///@notice Emitted when ACLManager has been changed
    ///@param aclManager The address of the new ACLManager
    event AclManagerChanged(address aclManager);

    /// @notice Emitted when restricted mode is updated
    /// @param mode either true or false
    event RestrictedModeUpdated(bool mode);

    ///@notice Emitted an address is whitelisted for deposit 
    ///@param depositor The address of the depositor
    ///@param status The status of the whitelist.
	event DepositWhitelistStatusChanged(
		address depositor, bool status
	);

    ///@notice Emitted when the daily withdrawal cap is set. 
    ///@param token The token address of the cap to be implemeneted on. 
    ///@param cap The amount that is capped. 
	event DailyWithdrawalCapChanged(
		address token, uint256 cap
	);

    ///@notice Emitted when some calls the deposits function to deposit funds to the rewards contract. 
	event Deposit(
		address token, address depositor, uint256 amount
	);

    ///@notice Emitted when some calls the withdraws function to withdraw funds to the rewards contract. 
	event Withdrawal(
		address token, address receiver, uint256 amount
	);

    /*//////////////////////////////////////////////////////////////
                            Admin Functions
    //////////////////////////////////////////////////////////////*/


    ///@notice Change the ACL Manager to update the ACL 
    ///@param _aclManager address of the ACL Manager
    function setAclManager(IACLManager _aclManager) external ;

    ///@notice Pause further staking through the deposit function.
    ///@dev Only callable by the owner. Withdrawals and migrations will still be possible when paused
    function pause() external;

    ///@notice Unpause staking allowing the deposit function to be used again
    ///@dev Only callable by the owner
    function unpause() external;

    ///@notice function to set the daily withdrawal cap 
    ///@param _tokenAddr The token address of the cap to be implemeneted on. 
    ///@param _cap The amount that is capped. 
    function setDailyWithdrawalCap(address _tokenAddr, uint256 _cap) external;

    ///@notice function to set depositor whitelist
    ///@param _depositorAddr The address of the depositor to be whitelisted.
    ///@param _status Enable or disaable whitelist.
    function setDepositorWhitelist(address[] calldata _depositorAddr, bool[] calldata _status) external;

    ///@notice function withdraw funds from the rewards contract to admin. 
    ///@param _tokenAddr, Token to withdraw 
    ///@param amount Amount to withdraw
    function adminWithdraw(address _tokenAddr, address _receiver, uint256 amount) external;

    /*//////////////////////////////////////////////////////////////
                            Reward Claim Functions
    //////////////////////////////////////////////////////////////*/

    ///@notice called to update the Merkle Root from the backend server
    ///@param _newMerkleRoot The Merkle Root to be updated. 
    ///@param _category The Merkle Root Category 
    ///@dev only callable by bookkeeper
    function updateMerkleRoot(bytes32 _newMerkleRoot, bytes32 _category) external;

    function updateMerkleRootInfo(bool _isStake, uint248 _minUnlockDuration, bytes32 _category) external;
    
    struct ClaimEntry {
        address user;
        address token;
        uint256 claimAmount;
    }
    struct TokenClaim {
        address token;
        uint256 totalClaimAmount;
    }
    ///@notice After the Merkle Proof is retrived from the backend server, user can call this function to claim the rewards
    ///@param _entries refer to ClaimEntry Struct
    ///@param _merkleProof Merkle Proof retrieved from backend server to verify this transaction
    ///@param _category The Merkle Root Category
    ///@dev cannot be called when the contract is paused. 
    function claimReward(
        ClaimEntry[] calldata _entries,
        address[] calldata _tokens,
        bytes32[] calldata _merkleProof,
        bytes32 _category,
        bool _isStake,
        uint256 _initUnlockTime
    ) external;

    /*//////////////////////////////////////////////////////////////
                            Other Functions
    //////////////////////////////////////////////////////////////*/
    ///@notice function to deposit native ETH to the rewards contract.
    function deposit() payable external; 


    ///@notice function to deposit funds to the rewards contract.
    ///@param _tokenAddr The token address of the deposit.
    ///@param _amount The amount to deposit.
    function deposit(address[] calldata _tokenAddr, uint256[] calldata _amount) external; 

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface IVotingEscrow {

    struct LockedBalance {
        int128 amount;
        uint256 end;
    }

    function create_lock(uint256 _value, uint256 _unlock_time) external;
    function increase_amount(uint256 _value) external;
    function create_lock_for(address _addr, uint256 _value, uint256 _unlock_time) external;
    function increase_amount_for(address _addr, uint256 _value) external;
    function increase_unlock_time(uint256 _unlock_time) external;
    function withdraw() external;
    function whitelist_contracts(address[30] memory contracts, bool[30] memory is_whitelists) external;

    // view
    function locked(address user) external view returns (LockedBalance memory);
    function balanceOf(address addr) external view returns (uint256);
    function totalSupply() external view returns (uint256);
    function admin() external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.12;

import "../dependencies/openzeppelin-v5.0.1/token/SafeERC20.sol";

interface IWETH is IERC20 {
    function deposit() external payable;
    function withdraw(uint) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;

import "../interfaces/IWETH.sol";
import "../interfaces/IEthgasPool.sol";


library InputValidator {



	error IncorrectAddress();

	function validateAddr (address _inputAddr) internal pure {
		if (_inputAddr == address(0)) {
			revert IncorrectAddress();
		}

	}

}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 20000
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  }
}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"contract IACLManager","name":"_aclManager","type":"address"},{"internalType":"address[]","name":"_token","type":"address[]"},{"internalType":"uint256[]","name":"_cap","type":"uint256[]"},{"internalType":"contract IWETH","name":"_weth","type":"address"},{"internalType":"contract IERC20","name":"_ethgasToken","type":"address"},{"internalType":"contract IVotingEscrow","name":"_veToken","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"CannotStakeForExpiredLock","type":"error"},{"inputs":[],"name":"DailyWithdrawalCapReached","type":"error"},{"inputs":[],"name":"DepositNotAllowed","type":"error"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"IncorrectAddress","type":"error"},{"inputs":[],"name":"InvalidArrayLength","type":"error"},{"inputs":[],"name":"InvalidDepositAmount","type":"error"},{"inputs":[],"name":"InvalidMerkleRoot","type":"error"},{"inputs":[],"name":"InvalidProof","type":"error"},{"inputs":[],"name":"InvalidUnlockTime","type":"error"},{"inputs":[],"name":"MerkleRootNotSet","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[],"name":"RestrictedModeOff","type":"error"},{"inputs":[],"name":"RestrictedModeOn","type":"error"},{"inputs":[],"name":"RewardAlreadyClaimed","type":"error"},{"inputs":[],"name":"RewardPoolOutOfFunds","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[],"name":"StakeRequired","type":"error"},{"inputs":[],"name":"UnauthorizedClaim","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"aclManager","type":"address"}],"name":"AclManagerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"cap","type":"uint256"}],"name":"DailyWithdrawalCapChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"address","name":"depositor","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"depositor","type":"address"},{"indexed":false,"internalType":"bool","name":"status","type":"bool"}],"name":"DepositWhitelistStatusChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"isStake","type":"bool"},{"indexed":false,"internalType":"uint256","name":"minUnlockDuration","type":"uint256"},{"indexed":false,"internalType":"bytes32","name":"category","type":"bytes32"}],"name":"MerkleRootInfoUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"newRoot","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"category","type":"bytes32"}],"name":"MerkleRootUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"mode","type":"bool"}],"name":"RestrictedModeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"RewardClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"initUnlockTime","type":"uint256"}],"name":"RewardStaked","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrawal","type":"event"},{"inputs":[],"name":"aclManager","outputs":[{"internalType":"contract IACLManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddr","type":"address"},{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"adminWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"user","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"claimAmount","type":"uint256"}],"internalType":"struct IEthgasRebate.ClaimEntry[]","name":"_entries","type":"tuple[]"},{"internalType":"address[]","name":"_tokens","type":"address[]"},{"internalType":"bytes32[]","name":"_merkleProof","type":"bytes32[]"},{"internalType":"bytes32","name":"_category","type":"bytes32"},{"internalType":"bool","name":"_isStake","type":"bool"},{"internalType":"uint256","name":"_initUnlockTime","type":"uint256"}],"name":"claimReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"currentDailyWithdrawalAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"dailyWithdrawalCap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_tokenAddr","type":"address[]"},{"internalType":"uint256[]","name":"_amount","type":"uint256[]"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"depositWhitelist","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endRestrictedMode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"ethgasToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isRestrictedMode","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"lastWithdrawalTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"merkleRootInfo","outputs":[{"internalType":"bool","name":"isStake","type":"bool"},{"internalType":"uint248","name":"minUnlockDuration","type":"uint248"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"bytes32","name":"","type":"bytes32"},{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"rewardClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IACLManager","name":"_aclManager","type":"address"}],"name":"setAclManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_cap","type":"uint256"}],"name":"setDailyWithdrawalCap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_depositorAddr","type":"address[]"},{"internalType":"bool[]","name":"_status","type":"bool[]"}],"name":"setDepositorWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startRestrictedMode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_newMerkleRoot","type":"bytes32"},{"internalType":"bytes32","name":"_category","type":"bytes32"}],"name":"updateMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isStake","type":"bool"},{"internalType":"uint248","name":"_minUnlockDuration","type":"uint248"},{"internalType":"bytes32","name":"_category","type":"bytes32"}],"name":"updateMerkleRootInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"veToken","outputs":[{"internalType":"contract IVotingEscrow","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"weth","outputs":[{"internalType":"contract IWETH","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _aclManager (address): 0x49CAD6920e26a36BAD8db25f8dBf037d48553690
Arg [1] : _token (address[]): 0x2798b1cC5A993085E8A9D46e80499F1B63f42204
Arg [2] : _cap (uint256[]): 50000000000000000000000000
Arg [3] : _weth (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [4] : _ethgasToken (address): 0x2798b1cC5A993085E8A9D46e80499F1B63f42204
Arg [5] : _veToken (address): 0x13aB49189EBC2287E941a82D9Af154130f96Eb21

-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 00000000000000000000000049cad6920e26a36bad8db25f8dbf037d48553690
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [3] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [4] : 0000000000000000000000002798b1cc5a993085e8a9d46e80499f1b63f42204
Arg [5] : 00000000000000000000000013ab49189ebc2287e941a82d9af154130f96eb21
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [7] : 0000000000000000000000002798b1cc5a993085e8a9d46e80499f1b63f42204
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [9] : 000000000000000000000000000000000000000000295be96e64066972000000


Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.