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// SPDX-License-Identifier: MIT

pragma solidity 0.8.6;

import "ConfirmedOwner.sol";
import "KeeperCompatibleInterface.sol";
import "Pausable.sol";
import "SafeERC20.sol";

/**
 * @title The GasStationExact Contract
 * @author gosuto.eth
 * @notice Custom implementation of Chainlink's EthBalanceMonitor. Ether
 * transferred is not limited anymore by topUpAmountWei, and a sweep function
 * makes it possible to retrieve ERC-20 tokens.
 */
contract GasStationExact is ConfirmedOwner, Pausable, KeeperCompatibleInterface {
  // observed limit of 45K + 10k buffer
  uint256 private constant MIN_GAS_FOR_TRANSFER = 55_000;

  event FundsAdded(uint256 amountAdded, uint256 newBalance, address sender);
  event FundsWithdrawn(uint256 amountWithdrawn, address payee);
  event TopUpSucceeded(address indexed recipient);
  event TopUpFailed(address indexed recipient);
  event KeeperRegistryAddressUpdated(address oldAddress, address newAddress);
  event MinWaitPeriodUpdated(uint256 oldMinWaitPeriod, uint256 newMinWaitPeriod);
  event ERC20Swept(address indexed token, address payee, uint256 amount);

  error InvalidWatchList();
  error OnlyKeeperRegistry();
  error DuplicateAddress(address duplicate);
  error ZeroAddress();

  struct Target {
    bool isActive;
    uint96 minBalanceWei;
    uint96 minTopUpAmountWei;
    uint56 lastTopUpTimestamp; // enough space for 2 trillion years
  }

  address private s_keeperRegistryAddress;
  uint256 private s_minWaitPeriodSeconds;
  address[] private s_watchList;
  mapping(address => Target) internal s_targets;

  /**
   * @param keeperRegistryAddress The address of the keeper registry contract
   * @param minWaitPeriodSeconds The minimum wait period for addresses between funding
   */
  constructor(address keeperRegistryAddress, uint256 minWaitPeriodSeconds) ConfirmedOwner(msg.sender) {
    setKeeperRegistryAddress(keeperRegistryAddress);
    setMinWaitPeriodSeconds(minWaitPeriodSeconds);
  }

  /**
   * @notice Sets the list of addresses to watch and their funding parameters
   * @param addresses the list of addresses to watch
   * @param minBalancesWei the minimum balances for each address
   * @param topUpAmountsWei the amount to top up each address
   */
  function setWatchList(
    address[] calldata addresses,
    uint96[] calldata minBalancesWei,
    uint96[] calldata topUpAmountsWei
  ) external onlyOwner {
    if (addresses.length != minBalancesWei.length || addresses.length != topUpAmountsWei.length) {
      revert InvalidWatchList();
    }
    address[] memory oldWatchList = s_watchList;
    for (uint256 idx = 0; idx < oldWatchList.length; idx++) {
      s_targets[oldWatchList[idx]].isActive = false;
    }
    for (uint256 idx = 0; idx < addresses.length; idx++) {
      if (s_targets[addresses[idx]].isActive) {
        revert DuplicateAddress(addresses[idx]);
      }
      if (addresses[idx] == address(0)) {
        revert InvalidWatchList();
      }
      if (topUpAmountsWei[idx] == 0) {
        revert InvalidWatchList();
      }
      s_targets[addresses[idx]] = Target({
        isActive: true,
        minBalanceWei: minBalancesWei[idx],
        minTopUpAmountWei: topUpAmountsWei[idx],
        lastTopUpTimestamp: 0
      });
    }
    s_watchList = addresses;
  }

  /**
   * @notice Gets a list of addresses that are under funded
   * @return list of addresses that are underfunded
   */
  function getUnderfundedAddresses() public view returns (address[] memory) {
    address[] memory watchList = s_watchList;
    address[] memory needsFunding = new address[](watchList.length);
    uint256 count = 0;
    uint256 minWaitPeriod = s_minWaitPeriodSeconds;
    uint256 balance = address(this).balance;
    Target memory target;
    for (uint256 idx = 0; idx < watchList.length; idx++) {
      target = s_targets[watchList[idx]];
      if (watchList[idx].balance < target.minBalanceWei) {
        uint256 delta = target.minBalanceWei - watchList[idx].balance;
        if (
          target.lastTopUpTimestamp + minWaitPeriod <= block.timestamp &&
          balance >= delta &&
          delta >= target.minTopUpAmountWei
        ) {
          needsFunding[count] = watchList[idx];
          count++;
          balance -= delta;
        }
      }
    }
    if (count != watchList.length) {
      assembly {
        mstore(needsFunding, count)
      }
    }
    return needsFunding;
  }

  /**
   * @notice Send funds to the addresses provided
   * @param needsFunding the list of addresses to fund (addresses must be pre-approved)
   */
  function topUpExact(address[] memory needsFunding) public whenNotPaused {
    uint256 minWaitPeriodSeconds = s_minWaitPeriodSeconds;
    Target memory target;
    for (uint256 idx = 0; idx < needsFunding.length; idx++) {
      target = s_targets[needsFunding[idx]];
      uint256 delta = target.minBalanceWei - needsFunding[idx].balance;
      if (
        target.isActive &&
        target.lastTopUpTimestamp + minWaitPeriodSeconds <= block.timestamp &&
        delta >= target.minTopUpAmountWei
      ) {
        bool success = payable(needsFunding[idx]).send(delta);
        if (success) {
          s_targets[needsFunding[idx]].lastTopUpTimestamp = uint56(block.timestamp);
          emit TopUpSucceeded(needsFunding[idx]);
        } else {
          emit TopUpFailed(needsFunding[idx]);
        }
      }
      if (gasleft() < MIN_GAS_FOR_TRANSFER) {
        return;
      }
    }
  }

  /**
   * @notice Get list of addresses that are underfunded and return keeper-compatible payload
   * @return upkeepNeeded signals if upkeep is needed, performData is an abi encoded list of addresses that need funds
   */
  function checkUpkeep(bytes calldata)
    external
    view
    override
    whenNotPaused
    returns (bool upkeepNeeded, bytes memory performData)
  {
    address[] memory needsFunding = getUnderfundedAddresses();
    upkeepNeeded = needsFunding.length > 0;
    performData = abi.encode(needsFunding);
    return (upkeepNeeded, performData);
  }

  /**
   * @notice Called by keeper to send funds to underfunded addresses
   * @param performData The abi encoded list of addresses to fund
   */
  function performUpkeep(bytes calldata performData) external override onlyKeeperRegistry whenNotPaused {
    address[] memory needsFunding = abi.decode(performData, (address[]));
    topUpExact(needsFunding);
  }

  /**
   * @notice Withdraws the contract balance
   * @param amount The amount of eth (in wei) to withdraw
   * @param payee The address to pay
   */
  function withdraw(uint256 amount, address payable payee) external onlyOwner {
    if (payee == address(0)) {
      revert ZeroAddress();
    }
    emit FundsWithdrawn(amount, payee);
    payee.transfer(amount);
  }

  /**
   * @notice Sweep the full contract's balance for a given ERC-20 token
   * @param token The ERC-20 token which needs to be swept
   * @param payee The address to pay
   */
  function sweep(address token, address payee) external onlyOwner {
    uint256 balance = IERC20(token).balanceOf(address(this));
    emit ERC20Swept(token, payee, balance);
    SafeERC20.safeTransfer(IERC20(token), payee, balance);
  }

  /**
   * @notice Receive funds
   */
  receive() external payable {
    emit FundsAdded(msg.value, address(this).balance, msg.sender);
  }

  /**
   * @notice Sets the keeper registry address
   */
  function setKeeperRegistryAddress(address keeperRegistryAddress) public onlyOwner {
    emit KeeperRegistryAddressUpdated(s_keeperRegistryAddress, keeperRegistryAddress);
    s_keeperRegistryAddress = keeperRegistryAddress;
  }

  /**
   * @notice Sets the minimum wait period (in seconds) for addresses between funding
   */
  function setMinWaitPeriodSeconds(uint256 period) public onlyOwner {
    emit MinWaitPeriodUpdated(s_minWaitPeriodSeconds, period);
    s_minWaitPeriodSeconds = period;
  }

  /**
   * @notice Gets the keeper registry address
   */
  function getKeeperRegistryAddress() external view returns (address keeperRegistryAddress) {
    return s_keeperRegistryAddress;
  }

  /**
   * @notice Gets the minimum wait period
   */
  function getMinWaitPeriodSeconds() external view returns (uint256) {
    return s_minWaitPeriodSeconds;
  }

  /**
   * @notice Gets the list of addresses being watched
   */
  function getWatchList() external view returns (address[] memory) {
    return s_watchList;
  }

  /**
   * @notice Gets configuration information for an address on the watchlist
   */
  function getAccountInfo(address targetAddress)
    external
    view
    returns (
      bool isActive,
      uint96 minBalanceWei,
      uint96 minTopUpAmountWei,
      uint56 lastTopUpTimestamp
    )
  {
    Target memory target = s_targets[targetAddress];
    return (target.isActive, target.minBalanceWei, target.minTopUpAmountWei, target.lastTopUpTimestamp);
  }

  /**
   * @notice Pauses the contract, which prevents executing performUpkeep
   */
  function pause() external onlyOwner {
    _pause();
  }

  /**
   * @notice Unpauses the contract
   */
  function unpause() external onlyOwner {
    _unpause();
  }

  modifier onlyKeeperRegistry() {
    if (msg.sender != s_keeperRegistryAddress) {
      revert OnlyKeeperRegistry();
    }
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "ConfirmedOwnerWithProposal.sol";

/**
 * @title The ConfirmedOwner contract
 * @notice A contract with helpers for basic contract ownership.
 */
contract ConfirmedOwner is ConfirmedOwnerWithProposal {
  constructor(address newOwner) ConfirmedOwnerWithProposal(newOwner, address(0)) {}
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "OwnableInterface.sol";

/**
 * @title The ConfirmedOwner contract
 * @notice A contract with helpers for basic contract ownership.
 */
contract ConfirmedOwnerWithProposal is OwnableInterface {
  address private s_owner;
  address private s_pendingOwner;

  event OwnershipTransferRequested(address indexed from, address indexed to);
  event OwnershipTransferred(address indexed from, address indexed to);

  constructor(address newOwner, address pendingOwner) {
    require(newOwner != address(0), "Cannot set owner to zero");

    s_owner = newOwner;
    if (pendingOwner != address(0)) {
      _transferOwnership(pendingOwner);
    }
  }

  /**
   * @notice Allows an owner to begin transferring ownership to a new address,
   * pending.
   */
  function transferOwnership(address to) public override onlyOwner {
    _transferOwnership(to);
  }

  /**
   * @notice Allows an ownership transfer to be completed by the recipient.
   */
  function acceptOwnership() external override {
    require(msg.sender == s_pendingOwner, "Must be proposed owner");

    address oldOwner = s_owner;
    s_owner = msg.sender;
    s_pendingOwner = address(0);

    emit OwnershipTransferred(oldOwner, msg.sender);
  }

  /**
   * @notice Get the current owner
   */
  function owner() public view override returns (address) {
    return s_owner;
  }

  /**
   * @notice validate, transfer ownership, and emit relevant events
   */
  function _transferOwnership(address to) private {
    require(to != msg.sender, "Cannot transfer to self");

    s_pendingOwner = to;

    emit OwnershipTransferRequested(s_owner, to);
  }

  /**
   * @notice validate access
   */
  function _validateOwnership() internal view {
    require(msg.sender == s_owner, "Only callable by owner");
  }

  /**
   * @notice Reverts if called by anyone other than the contract owner.
   */
  modifier onlyOwner() {
    _validateOwnership();
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface OwnableInterface {
  function owner() external returns (address);

  function transferOwnership(address recipient) external;

  function acceptOwnership() external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface KeeperCompatibleInterface {
  /**
   * @notice method that is simulated by the keepers to see if any work actually
   * needs to be performed. This method does does not actually need to be
   * executable, and since it is only ever simulated it can consume lots of gas.
   * @dev To ensure that it is never called, you may want to add the
   * cannotExecute modifier from KeeperBase to your implementation of this
   * method.
   * @param checkData specified in the upkeep registration so it is always the
   * same for a registered upkeep. This can easily be broken down into specific
   * arguments using `abi.decode`, so multiple upkeeps can be registered on the
   * same contract and easily differentiated by the contract.
   * @return upkeepNeeded boolean to indicate whether the keeper should call
   * performUpkeep or not.
   * @return performData bytes that the keeper should call performUpkeep with, if
   * upkeep is needed. If you would like to encode data to decode later, try
   * `abi.encode`.
   */
  function checkUpkeep(bytes calldata checkData) external returns (bool upkeepNeeded, bytes memory performData);

  /**
   * @notice method that is actually executed by the keepers, via the registry.
   * The data returned by the checkUpkeep simulation will be passed into
   * this method to actually be executed.
   * @dev The input to this method should not be trusted, and the caller of the
   * method should not even be restricted to any single registry. Anyone should
   * be able call it, and the input should be validated, there is no guarantee
   * that the data passed in is the performData returned from checkUpkeep. This
   * could happen due to malicious keepers, racing keepers, or simply a state
   * change while the performUpkeep transaction is waiting for confirmation.
   * Always validate the data passed in.
   * @param performData is the data which was passed back from the checkData
   * simulation. If it is encoded, it can easily be decoded into other types by
   * calling `abi.decode`. This data should not be trusted, and should be
   * validated against the contract's current state.
   */
  function performUpkeep(bytes calldata performData) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)

pragma solidity ^0.8.0;

import "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 {
    /**
     * @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);

    bool private _paused;

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

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

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

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

    /**
     * @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 v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "IERC20.sol";
import "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;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` 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 amount
    ) external returns (bool);

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @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://diligence.consensys.net/posts/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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"keeperRegistryAddress","type":"address"},{"internalType":"uint256","name":"minWaitPeriodSeconds","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"duplicate","type":"address"}],"name":"DuplicateAddress","type":"error"},{"inputs":[],"name":"InvalidWatchList","type":"error"},{"inputs":[],"name":"OnlyKeeperRegistry","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"address","name":"payee","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ERC20Swept","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amountAdded","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"},{"indexed":false,"internalType":"address","name":"sender","type":"address"}],"name":"FundsAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amountWithdrawn","type":"uint256"},{"indexed":false,"internalType":"address","name":"payee","type":"address"}],"name":"FundsWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldAddress","type":"address"},{"indexed":false,"internalType":"address","name":"newAddress","type":"address"}],"name":"KeeperRegistryAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"oldMinWaitPeriod","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newMinWaitPeriod","type":"uint256"}],"name":"MinWaitPeriodUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"OwnershipTransferRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"}],"name":"TopUpFailed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"}],"name":"TopUpSucceeded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"","type":"bytes"}],"name":"checkUpkeep","outputs":[{"internalType":"bool","name":"upkeepNeeded","type":"bool"},{"internalType":"bytes","name":"performData","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"targetAddress","type":"address"}],"name":"getAccountInfo","outputs":[{"internalType":"bool","name":"isActive","type":"bool"},{"internalType":"uint96","name":"minBalanceWei","type":"uint96"},{"internalType":"uint96","name":"minTopUpAmountWei","type":"uint96"},{"internalType":"uint56","name":"lastTopUpTimestamp","type":"uint56"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getKeeperRegistryAddress","outputs":[{"internalType":"address","name":"keeperRegistryAddress","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMinWaitPeriodSeconds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getUnderfundedAddresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getWatchList","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"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":"bytes","name":"performData","type":"bytes"}],"name":"performUpkeep","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"keeperRegistryAddress","type":"address"}],"name":"setKeeperRegistryAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"period","type":"uint256"}],"name":"setMinWaitPeriodSeconds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"},{"internalType":"uint96[]","name":"minBalancesWei","type":"uint96[]"},{"internalType":"uint96[]","name":"topUpAmountsWei","type":"uint96[]"}],"name":"setWatchList","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"payee","type":"address"}],"name":"sweep","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"needsFunding","type":"address[]"}],"name":"topUpExact","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address payable","name":"payee","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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0000000000000000000000007b3ec232b08bd7b4b3305be0c044d907b2df960b0000000000000000000000000000000000000000000000000000000000015180

-----Decoded View---------------
Arg [0] : keeperRegistryAddress (address): 0x7b3EC232b08BD7b4b3305BE0C044D907B2DF960B
Arg [1] : minWaitPeriodSeconds (uint256): 86400

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007b3ec232b08bd7b4b3305be0c044d907b2df960b
Arg [1] : 0000000000000000000000000000000000000000000000000000000000015180