// File: StakeNTroveZap.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.19;
import "Address.sol";
import { Ownable } from "Ownable.sol";
import "IERC20.sol";
import "SafeERC20.sol";
import "ITroveManager.sol";
import "IBorrowerOperations.sol";

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

    function withdraw(uint256) external;
}

interface RocketStorageInterface {
    function getAddress(bytes32 _key) external view returns (address);
}

interface RocketDepositPoolInterface {
    function deposit() external payable;
}

contract rETHDepositor {
    bytes32 public constant GET_ADDRESS = keccak256(abi.encodePacked("contract.address", "rocketDepositPool"));
    RocketStorageInterface public immutable rocketStorage;
    IERC20 public immutable rETH;

    constructor(RocketStorageInterface _rocketStorageAddress, IERC20 _rETH) {
        rocketStorage = _rocketStorageAddress;
        rETH = _rETH;
    }

    function deposit() external payable {
        RocketDepositPoolInterface rocketDepositPool = RocketDepositPoolInterface(
            rocketStorage.getAddress(GET_ADDRESS)
        );
        rocketDepositPool.deposit{ value: msg.value }();
        rETH.transfer(address(msg.sender), rETH.balanceOf(address(this)));
    }
}

/**
    @title Prisma Stake and Deposit Zap
    @notice Zap to automate staking and depositing from native ETH or WETH into one
            of the supported Prisma collaterals.
 */
contract StakeNTroveZap is Ownable {
    using SafeERC20 for IERC20;
    using SafeERC20 for IWETH;
    using Address for address;

    struct StakingRecord {
        address stakingContract;
        bytes4 sharePriceSig;
        bytes payload;
    }
    // Events ---------------------------------------------------------------------------------------------------------

    event EtherStakedViaPrisma(address token, uint256 amount);
    event NewTokenRegistered(address token);
    event EmergencyEtherRecovered(uint256 amount);
    event EmergencyERC20Recovered(address tokenAddress, uint256 tokenAmount);

    IBorrowerOperations public immutable borrowerOps;
    IERC20 public immutable debtToken;
    IWETH public immutable weth;

    // State ------------------------------------------------------------------------------------------------------------

    mapping(address token => StakingRecord record) public stakingRecords;

    constructor(IBorrowerOperations _borrowerOps, IERC20 _debtToken, IWETH _weth) {
        borrowerOps = _borrowerOps;
        debtToken = _debtToken;
        weth = _weth;
    }

    // Admin routines ---------------------------------------------------------------------------------------------------

    /**
        @notice Registers a token to be zapped
        @param  token Token to be registered
        @param  stakingContract Contract which stakes and mint the token (can be the token itself)
        @param  sharePriceSig Signature for token's share price view method
        @param  stakingPayload Call data to invoke on the staking contract
     */
    function registerToken(
        address token,
        address stakingContract,
        bytes4 sharePriceSig,
        bytes calldata stakingPayload
    ) external onlyOwner {
        require(stakingRecords[token].stakingContract == address(0), "Token already registered");
        stakingRecords[token] = StakingRecord(stakingContract, sharePriceSig, stakingPayload);
        IERC20(token).approve(address(borrowerOps), type(uint256).max);

        emit NewTokenRegistered(token);
    }

    /// @notice For emergencies if something gets stuck
    function recoverEther(uint256 amount) external onlyOwner {
        (bool success, ) = owner().call{ value: amount }("");
        require(success, "Invalid transfer");

        emit EmergencyEtherRecovered(amount);
    }

    /// @notice For emergencies if someone accidentally sent some ERC20 tokens here
    function recoverERC20(address tokenAddress, uint256 tokenAmount) external onlyOwner {
        IERC20(tokenAddress).safeTransfer(msg.sender, tokenAmount);

        emit EmergencyERC20Recovered(tokenAddress, tokenAmount);
    }

    // Public functions -------------------------------------------------------------------------------------------------

    /**
        @notice Get the share price for `token`
        @dev Returns 0 if token is unregistered or misconfigured
     */
    function getSharePrice(address token) external view returns (uint256) {
        if (!token.isContract()) return 0;
        bytes memory sig = abi.encode(stakingRecords[token].sharePriceSig);
        (bool success, bytes memory response) = token.staticcall(sig);
        if (!success || response.length < 32) return 0;
        return abi.decode(response, (uint256));
    }

    /// @notice Stakes and open a trove
    function openTrove(
        ITroveManager troveManager,
        uint256 _maxFeePercentage,
        uint256 ethAmount,
        uint256 _debtAmount,
        address _upperHint,
        address _lowerHint
    ) external payable {
        uint256 staked = _stake(troveManager.collateralToken(), ethAmount);
        borrowerOps.openTrove(
            address(troveManager),
            msg.sender,
            _maxFeePercentage,
            staked,
            _debtAmount,
            _upperHint,
            _lowerHint
        );
        debtToken.transfer(msg.sender, _debtAmount);
    }

    /// @notice Stakes and adds collateral to an existing trove
    function addColl(
        ITroveManager troveManager,
        uint256 ethAmount,
        address _upperHint,
        address _lowerHint
    ) external payable {
        adjustTrove(troveManager, 0, ethAmount, 0, false, _upperHint, _lowerHint);
    }

    /// @notice Stakes and adjusts a trove
    function adjustTrove(
        ITroveManager troveManager,
        uint256 _maxFeePercentage,
        uint256 ethAmount,
        uint256 _debtChange,
        bool _isDebtIncrease,
        address _upperHint,
        address _lowerHint
    ) public payable {
        uint256 staked = _stake(troveManager.collateralToken(), ethAmount);
        borrowerOps.adjustTrove(
            address(troveManager),
            msg.sender,
            _maxFeePercentage,
            staked,
            0,
            _debtChange,
            _isDebtIncrease,
            _upperHint,
            _lowerHint
        );
        if (_isDebtIncrease) debtToken.transfer(msg.sender, _debtChange);
    }

    function _stake(address token, uint256 ethAmount) internal returns (uint256 staked) {
        StakingRecord memory record = stakingRecords[token];
        address stakingContract = record.stakingContract;
        require(stakingContract != address(0), "Unsupported Token");
        if (msg.value == 0) {
            weth.transferFrom(msg.sender, address(this), ethAmount);
            weth.withdraw(ethAmount);
        } else {
            require(ethAmount == msg.value, "Wrong amount sent");
        }
        uint256 balanceBefore = IERC20(token).balanceOf(address(this));
        (bool success, ) = stakingContract.call{ value: ethAmount }(record.payload);
        require(success, "Staking failed");
        emit EtherStakedViaPrisma(token, ethAmount);
        uint256 balanceAfter = IERC20(token).balanceOf(address(this));
        staked = balanceAfter - balanceBefore;
        require(staked > 0, "Nothing was minted");
    }

    receive() external payable {}
}

// File: Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) 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(errorMessage);
        }
    }
}

// File: Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// File: Context.sol



// 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;
    }
}

// File: IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 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);
}

// File: SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "IERC20.sol";
import "draft-IERC20Permit.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));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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");
        }
    }
}

// File: draft-IERC20Permit.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 */
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].
     */
    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);
}

// File: ITroveManager.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface ITroveManager {
    event BaseRateUpdated(uint256 _baseRate);
    event CollateralSent(address _to, uint256 _amount);
    event LTermsUpdated(uint256 _L_collateral, uint256 _L_debt);
    event LastFeeOpTimeUpdated(uint256 _lastFeeOpTime);
    event Redemption(
        uint256 _attemptedDebtAmount,
        uint256 _actualDebtAmount,
        uint256 _collateralSent,
        uint256 _collateralFee
    );
    event RewardClaimed(address indexed account, address indexed recipient, uint256 claimed);
    event SystemSnapshotsUpdated(uint256 _totalStakesSnapshot, uint256 _totalCollateralSnapshot);
    event TotalStakesUpdated(uint256 _newTotalStakes);
    event TroveIndexUpdated(address _borrower, uint256 _newIndex);
    event TroveSnapshotsUpdated(uint256 _L_collateral, uint256 _L_debt);
    event TroveUpdated(address indexed _borrower, uint256 _debt, uint256 _coll, uint256 _stake, uint8 _operation);

    function addCollateralSurplus(address borrower, uint256 collSurplus) external;

    function applyPendingRewards(address _borrower) external returns (uint256 coll, uint256 debt);

    function claimCollateral(address _receiver) external;

    function claimReward(address receiver) external returns (uint256);

    function closeTrove(address _borrower, address _receiver, uint256 collAmount, uint256 debtAmount) external;

    function closeTroveByLiquidation(address _borrower) external;

    function collectInterests() external;

    function decayBaseRateAndGetBorrowingFee(uint256 _debt) external returns (uint256);

    function decreaseDebtAndSendCollateral(address account, uint256 debt, uint256 coll) external;

    function fetchPrice() external returns (uint256);

    function finalizeLiquidation(
        address _liquidator,
        uint256 _debt,
        uint256 _coll,
        uint256 _collSurplus,
        uint256 _debtGasComp,
        uint256 _collGasComp
    ) external;

    function getEntireSystemBalances() external returns (uint256, uint256, uint256);

    function movePendingTroveRewardsToActiveBalances(uint256 _debt, uint256 _collateral) external;

    function notifyRegisteredId(uint256[] calldata _assignedIds) external returns (bool);

    function openTrove(
        address _borrower,
        uint256 _collateralAmount,
        uint256 _compositeDebt,
        uint256 NICR,
        address _upperHint,
        address _lowerHint,
        bool _isRecoveryMode
    ) external returns (uint256 stake, uint256 arrayIndex);

    function redeemCollateral(
        uint256 _debtAmount,
        address _firstRedemptionHint,
        address _upperPartialRedemptionHint,
        address _lowerPartialRedemptionHint,
        uint256 _partialRedemptionHintNICR,
        uint256 _maxIterations,
        uint256 _maxFeePercentage
    ) external;

    function setAddresses(address _priceFeedAddress, address _sortedTrovesAddress, address _collateralToken) external;

    function setParameters(
        uint256 _minuteDecayFactor,
        uint256 _redemptionFeeFloor,
        uint256 _maxRedemptionFee,
        uint256 _borrowingFeeFloor,
        uint256 _maxBorrowingFee,
        uint256 _interestRateInBPS,
        uint256 _maxSystemDebt,
        uint256 _MCR
    ) external;

    function setPaused(bool _paused) external;

    function setPriceFeed(address _priceFeedAddress) external;

    function startSunset() external;

    function updateBalances() external;

    function updateTroveFromAdjustment(
        bool _isRecoveryMode,
        bool _isDebtIncrease,
        uint256 _debtChange,
        uint256 _netDebtChange,
        bool _isCollIncrease,
        uint256 _collChange,
        address _upperHint,
        address _lowerHint,
        address _borrower,
        address _receiver
    ) external returns (uint256, uint256, uint256);

    function vaultClaimReward(address claimant, address) external returns (uint256);

    function BOOTSTRAP_PERIOD() external view returns (uint256);

    function CCR() external view returns (uint256);

    function DEBT_GAS_COMPENSATION() external view returns (uint256);

    function DECIMAL_PRECISION() external view returns (uint256);

    function L_collateral() external view returns (uint256);

    function L_debt() external view returns (uint256);

    function MAX_INTEREST_RATE_IN_BPS() external view returns (uint256);

    function MCR() external view returns (uint256);

    function PERCENT_DIVISOR() external view returns (uint256);

    function PRISMA_CORE() external view returns (address);

    function SUNSETTING_INTEREST_RATE() external view returns (uint256);

    function Troves(
        address
    )
        external
        view
        returns (
            uint256 debt,
            uint256 coll,
            uint256 stake,
            uint8 status,
            uint128 arrayIndex,
            uint256 activeInterestIndex
        );

    function accountLatestMint(address) external view returns (uint32 amount, uint32 week, uint32 day);

    function activeInterestIndex() external view returns (uint256);

    function baseRate() external view returns (uint256);

    function borrowerOperationsAddress() external view returns (address);

    function borrowingFeeFloor() external view returns (uint256);

    function claimableReward(address account) external view returns (uint256);

    function collateralToken() external view returns (address);

    function dailyMintReward(uint256) external view returns (uint256);

    function debtToken() external view returns (address);

    function defaultedCollateral() external view returns (uint256);

    function defaultedDebt() external view returns (uint256);

    function emissionId() external view returns (uint16 debt, uint16 minting);

    function getBorrowingFee(uint256 _debt) external view returns (uint256);

    function getBorrowingFeeWithDecay(uint256 _debt) external view returns (uint256);

    function getBorrowingRate() external view returns (uint256);

    function getBorrowingRateWithDecay() external view returns (uint256);

    function getCurrentICR(address _borrower, uint256 _price) external view returns (uint256);

    function getEntireDebtAndColl(
        address _borrower
    ) external view returns (uint256 debt, uint256 coll, uint256 pendingDebtReward, uint256 pendingCollateralReward);

    function getEntireSystemColl() external view returns (uint256);

    function getEntireSystemDebt() external view returns (uint256);

    function getNominalICR(address _borrower) external view returns (uint256);

    function getPendingCollAndDebtRewards(address _borrower) external view returns (uint256, uint256);

    function getRedemptionFeeWithDecay(uint256 _collateralDrawn) external view returns (uint256);

    function getRedemptionRate() external view returns (uint256);

    function getRedemptionRateWithDecay() external view returns (uint256);

    function getTotalActiveCollateral() external view returns (uint256);

    function getTotalActiveDebt() external view returns (uint256);

    function getTotalMints(uint256 week) external view returns (uint32[7] memory);

    function getTroveCollAndDebt(address _borrower) external view returns (uint256 coll, uint256 debt);

    function getTroveFromTroveOwnersArray(uint256 _index) external view returns (address);

    function getTroveOwnersCount() external view returns (uint256);

    function getTroveStake(address _borrower) external view returns (uint256);

    function getTroveStatus(address _borrower) external view returns (uint256);

    function getWeek() external view returns (uint256 week);

    function getWeekAndDay() external view returns (uint256, uint256);

    function guardian() external view returns (address);

    function hasPendingRewards(address _borrower) external view returns (bool);

    function interestPayable() external view returns (uint256);

    function interestRate() external view returns (uint256);

    function lastActiveIndexUpdate() external view returns (uint256);

    function lastCollateralError_Redistribution() external view returns (uint256);

    function lastDebtError_Redistribution() external view returns (uint256);

    function lastFeeOperationTime() external view returns (uint256);

    function lastUpdate() external view returns (uint32);

    function liquidationManager() external view returns (address);

    function maxBorrowingFee() external view returns (uint256);

    function maxRedemptionFee() external view returns (uint256);

    function maxSystemDebt() external view returns (uint256);

    function minuteDecayFactor() external view returns (uint256);

    function owner() external view returns (address);

    function paused() external view returns (bool);

    function periodFinish() external view returns (uint32);

    function priceFeed() external view returns (address);

    function redemptionFeeFloor() external view returns (uint256);

    function rewardIntegral() external view returns (uint256);

    function rewardIntegralFor(address) external view returns (uint256);

    function rewardRate() external view returns (uint128);

    function rewardSnapshots(address) external view returns (uint256 collateral, uint256 debt);

    function sortedTroves() external view returns (address);

    function sunsetting() external view returns (bool);

    function surplusBalances(address) external view returns (uint256);

    function systemDeploymentTime() external view returns (uint256);

    function totalCollateralSnapshot() external view returns (uint256);

    function totalStakes() external view returns (uint256);

    function totalStakesSnapshot() external view returns (uint256);

    function vault() external view returns (address);
}

// File: IBorrowerOperations.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IBorrowerOperations {
    struct Balances {
        uint256[] collaterals;
        uint256[] debts;
        uint256[] prices;
    }

    event BorrowingFeePaid(address indexed borrower, uint256 amount);
    event CollateralConfigured(address troveManager, address collateralToken);
    event TroveCreated(address indexed _borrower, uint256 arrayIndex);
    event TroveManagerRemoved(address troveManager);
    event TroveUpdated(address indexed _borrower, uint256 _debt, uint256 _coll, uint256 stake, uint8 operation);

    function addColl(
        address troveManager,
        address account,
        uint256 _collateralAmount,
        address _upperHint,
        address _lowerHint
    ) external;

    function adjustTrove(
        address troveManager,
        address account,
        uint256 _maxFeePercentage,
        uint256 _collDeposit,
        uint256 _collWithdrawal,
        uint256 _debtChange,
        bool _isDebtIncrease,
        address _upperHint,
        address _lowerHint
    ) external;

    function closeTrove(address troveManager, address account) external;

    function configureCollateral(address troveManager, address collateralToken) external;

    function fetchBalances() external returns (Balances memory balances);

    function getGlobalSystemBalances() external returns (uint256 totalPricedCollateral, uint256 totalDebt);

    function getTCR() external returns (uint256 globalTotalCollateralRatio);

    function openTrove(
        address troveManager,
        address account,
        uint256 _maxFeePercentage,
        uint256 _collateralAmount,
        uint256 _debtAmount,
        address _upperHint,
        address _lowerHint
    ) external;

    function removeTroveManager(address troveManager) external;

    function repayDebt(
        address troveManager,
        address account,
        uint256 _debtAmount,
        address _upperHint,
        address _lowerHint
    ) external;

    function setDelegateApproval(address _delegate, bool _isApproved) external;

    function setMinNetDebt(uint256 _minNetDebt) external;

    function withdrawColl(
        address troveManager,
        address account,
        uint256 _collWithdrawal,
        address _upperHint,
        address _lowerHint
    ) external;

    function withdrawDebt(
        address troveManager,
        address account,
        uint256 _maxFeePercentage,
        uint256 _debtAmount,
        address _upperHint,
        address _lowerHint
    ) external;

    function checkRecoveryMode(uint256 TCR) external pure returns (bool);

    function CCR() external view returns (uint256);

    function DEBT_GAS_COMPENSATION() external view returns (uint256);

    function DECIMAL_PRECISION() external view returns (uint256);

    function PERCENT_DIVISOR() external view returns (uint256);

    function PRISMA_CORE() external view returns (address);

    function _100pct() external view returns (uint256);

    function debtToken() external view returns (address);

    function factory() external view returns (address);

    function getCompositeDebt(uint256 _debt) external view returns (uint256);

    function guardian() external view returns (address);

    function isApprovedDelegate(address owner, address caller) external view returns (bool isApproved);

    function minNetDebt() external view returns (uint256);

    function owner() external view returns (address);

    function troveManagersData(address) external view returns (address collateralToken, uint16 index);
}