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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {ExponentialNoError} from '@contracts/utils/ExponentialNoError.sol';
import {Roles} from '@contracts/utils/Roles.sol';
import {UFragments} from '@contracts/utils/UFragments.sol';

import {IUSDA} from '@interfaces/core/IUSDA.sol';
import {IVaultController} from '@interfaces/core/IVaultController.sol';

import {IERC20Metadata, IERC20} from '@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol';
import {Pausable} from '@openzeppelin/contracts/security/Pausable.sol';
import {Context} from '@openzeppelin/contracts/utils/Context.sol';
import {EnumerableSet} from '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

/// @notice USDA token contract, handles all minting/burning of usda
/// @dev extends UFragments
contract USDA is Pausable, UFragments, IUSDA, ExponentialNoError, Roles {
  using EnumerableSet for EnumerableSet.AddressSet;
  using SafeERC20 for IERC20;

  bytes32 public constant VAULT_CONTROLLER_ROLE = keccak256('VAULT_CONTROLLER');

  EnumerableSet.AddressSet internal _vaultControllers;

  /// @dev The reserve token
  IERC20 public sUSD;

  /// @dev The address of the pauser
  address public pauser;

  /// @dev The reserve amount
  uint256 public reserveAmount;

  /// @notice Checks if _msgSender() is a valid VaultController
  modifier onlyVaultController() {
    _checkRole(VAULT_CONTROLLER_ROLE, _msgSender());
    _;
  }

  /// @notice Checks if _msgSender() is pauser
  modifier onlyPauser() {
    if (_msgSender() != address(pauser)) revert USDA_OnlyPauser();
    _;
  }

  /// @notice Any function with this modifier will call the pay_interest() function before any function logic is called
  modifier paysInterest() {
    for (uint256 _i; _i < _vaultControllers.length();) {
      IVaultController(_vaultControllers.at(_i)).calculateInterest();
      unchecked {
        _i++;
      }
    }
    _;
  }

  constructor(IERC20 _sUSDAddr) UFragments('USDA Token', 'USDA') {
    sUSD = _sUSDAddr;
  }

  /// @notice Sets the pauser for both USDA and VaultController
  /// @dev The pauser is a separate role from the owner
  function setPauser(address _pauser) external override onlyOwner {
    pauser = _pauser;

    emit PauserSet(_pauser);
  }

  /// @notice Pause contract
  /// @dev Can only be called by the pauser
  function pause() external override onlyPauser {
    _pause();
  }

  /// @notice Unpause contract, pauser only
  /// @dev Can only be called by the pauser
  function unpause() external override onlyPauser {
    _unpause();
  }

  /// @notice Deposit sUSD to mint USDA
  /// @dev Caller should obtain 1 USDA for each sUSD
  /// the calculations for deposit mimic the calculations done by mint in the ampleforth contract, simply with the susd transfer
  /// 'fragments' are the units that we see, so 1000 fragments == 1000 USDA
  /// 'gons' are the internal accounting unit, used to keep scale.
  /// We use the variable _gonsPerFragment in order to convert between the two
  /// try dimensional analysis when doing the math in order to verify units are correct
  /// @param _susdAmount The amount of sUSD to deposit
  function deposit(uint256 _susdAmount) external override {
    _deposit(_susdAmount, _msgSender());
  }

  /// @notice Deposits sUSD to mint USDA and transfer to a different address
  /// @param _susdAmount The amount of sUSD to deposit
  /// @param _target The address to receive the USDA tokens
  function depositTo(uint256 _susdAmount, address _target) external override {
    _deposit(_susdAmount, _target);
  }

  /// @notice Business logic to deposit sUSD and mint USDA for the caller
  function _deposit(uint256 _susdAmount, address _target) internal paysInterest whenNotPaused {
    if (_susdAmount == 0) revert USDA_ZeroAmount();
    sUSD.safeTransferFrom(_msgSender(), address(this), _susdAmount);
    _mint(_target, _susdAmount);
    // Account for the susd received
    reserveAmount += _susdAmount;

    emit Deposit(_target, _susdAmount);
  }

  /// @notice Withdraw sUSD by burning USDA
  /// @dev The caller should obtain 1 sUSD for every 1 USDA
  /// @param _susdAmount The amount of sUSD to withdraw
  function withdraw(uint256 _susdAmount) external override {
    _withdraw(_susdAmount, _msgSender());
  }

  /// @notice Withdraw sUSD to a specific address by burning USDA from the caller
  /// @dev The _target address should obtain 1 sUSD for every 1 USDA burned from the caller
  /// @param _susdAmount amount of sUSD to withdraw
  /// @param _target address to receive the sUSD
  function withdrawTo(uint256 _susdAmount, address _target) external override {
    _withdraw(_susdAmount, _target);
  }

  /// @notice Withdraw sUSD by burning USDA
  /// @dev The caller should obtain 1 sUSD for every 1 USDA
  /// @dev This function is effectively just withdraw, but we calculate the amount for the sender
  /// @param _susdWithdrawn The amount os sUSD withdrawn
  function withdrawAll() external override returns (uint256 _susdWithdrawn) {
    uint256 _balance = this.balanceOf(_msgSender());
    _susdWithdrawn = _balance > reserveAmount ? reserveAmount : _balance;
    _withdraw(_susdWithdrawn, _msgSender());
  }

  /// @notice Withdraw sUSD by burning USDA
  /// @dev This function is effectively just withdraw, but we calculate the amount for the _target
  /// @param _target should obtain 1 sUSD for every 1 USDA burned from caller
  /// @param _susdWithdrawn The amount os sUSD withdrawn
  function withdrawAllTo(address _target) external override returns (uint256 _susdWithdrawn) {
    uint256 _balance = this.balanceOf(_msgSender());
    _susdWithdrawn = _balance > reserveAmount ? reserveAmount : _balance;
    _withdraw(_susdWithdrawn, _target);
  }

  /// @notice business logic to withdraw sUSD and burn USDA from the caller
  function _withdraw(uint256 _susdAmount, address _target) internal paysInterest whenNotPaused {
    if (reserveAmount == 0) revert USDA_EmptyReserve();
    if (_susdAmount == 0) revert USDA_ZeroAmount();
    if (_susdAmount > this.balanceOf(_msgSender())) revert USDA_InsufficientFunds();
    // Account for the susd withdrawn
    reserveAmount -= _susdAmount;
    sUSD.safeTransfer(_target, _susdAmount);
    _burn(_msgSender(), _susdAmount);

    emit Withdraw(_target, _susdAmount);
  }

  /// @notice Admin function to mint USDA
  /// @param _susdAmount The amount of USDA to mint, denominated in sUSD
  function mint(uint256 _susdAmount) external override paysInterest onlyOwner {
    if (_susdAmount == 0) revert USDA_ZeroAmount();
    _mint(_msgSender(), _susdAmount);
  }

  /// @dev mint a specific `amount` of tokens to the `target`
  function _mint(address _target, uint256 _amount) internal {
    uint256 __gonsPerFragment = _gonsPerFragment;
    // the gonbalances of the sender is in gons, therefore we must multiply the deposit amount, which is in fragments, by gonsperfragment
    _gonBalances[_target] += _amount * __gonsPerFragment;
    // total supply is in fragments, and so we add amount
    _totalSupply += _amount;
    // and totalgons of course is in gons, and so we multiply amount by gonsperfragment to get the amount of gons we must add to totalGons
    _totalGons += _amount * __gonsPerFragment;
    // emit both a mint and transfer event
    emit Transfer(address(0), _target, _amount);
    emit Mint(_target, _amount);
  }

  /// @notice Admin function to burn USDA
  /// @param _susdAmount The amount of USDA to burn, denominated in sUSD
  function burn(uint256 _susdAmount) external override paysInterest onlyOwner {
    if (_susdAmount == 0) revert USDA_ZeroAmount();
    _burn(_msgSender(), _susdAmount);
  }

  /// @dev burn a specific `amount` of tokens from the `target`
  function _burn(address _target, uint256 _amount) internal {
    uint256 __gonsPerFragment = _gonsPerFragment;
    // modify the gonbalances of the sender, subtracting the amount of gons, therefore amount * gonsperfragment
    _gonBalances[_target] -= (_amount * __gonsPerFragment);
    // modify totalSupply and totalGons
    _totalSupply -= _amount;
    _totalGons -= (_amount * __gonsPerFragment);
    // emit both a burn and transfer event
    emit Transfer(_target, address(0), _amount);
    emit Burn(_target, _amount);
  }

  /// @notice Donates susd to the protocol reserve
  /// @param _susdAmount The amount of sUSD to donate
  function donate(uint256 _susdAmount) external override paysInterest whenNotPaused {
    if (_susdAmount == 0) revert USDA_ZeroAmount();
    // Account for the susd received
    reserveAmount += _susdAmount;
    sUSD.safeTransferFrom(_msgSender(), address(this), _susdAmount);
    _donation(_susdAmount);
  }

  /// @notice Recovers accidentally sent sUSD to this contract
  /// @param _to The receiver of the dust
  function recoverDust(address _to) external onlyOwner {
    // All sUSD sent directly to the contract is not accounted into the reserveAmount
    // This function allows governance to recover it
    uint256 _amount = sUSD.balanceOf(address(this)) - reserveAmount;
    sUSD.safeTransfer(_to, _amount);

    emit RecoveredDust(owner(), _amount);
  }

  /// @notice Function for the vaultController to mint
  /// @param _target The address to mint the USDA to
  /// @param _amount The amount of USDA to mint
  function vaultControllerMint(address _target, uint256 _amount) external override onlyVaultController whenNotPaused {
    _mint(_target, _amount);
  }

  /// @notice Function for the vaultController to burn
  /// @param _target The address to burn the USDA from
  /// @param _amount The amount of USDA to burn
  function vaultControllerBurn(address _target, uint256 _amount) external override onlyVaultController {
    if (_gonBalances[_target] < (_amount * _gonsPerFragment)) revert USDA_NotEnoughBalance();
    _burn(_target, _amount);
  }

  /// @notice Allows VaultController to send sUSD from the reserve
  /// @param _target The address to receive the sUSD from reserve
  /// @param _susdAmount The amount of sUSD to send
  function vaultControllerTransfer(
    address _target,
    uint256 _susdAmount
  ) external override onlyVaultController whenNotPaused {
    // Account for the susd withdrawn
    reserveAmount -= _susdAmount;
    // ensure transfer success
    sUSD.safeTransfer(_target, _susdAmount);

    emit VaultControllerTransfer(_target, _susdAmount);
  }

  /// @notice Function for the vaultController to scale all USDA balances
  /// @param _amount The amount of USDA (e18) to donate
  function vaultControllerDonate(uint256 _amount) external override onlyVaultController {
    _donation(_amount);
  }

  /// @notice Function for distributing the donation to all USDA holders
  /// @param _amount The amount of USDA to donate
  function _donation(uint256 _amount) internal {
    _totalSupply += _amount;
    if (_totalSupply > MAX_SUPPLY) _totalSupply = MAX_SUPPLY;
    _gonsPerFragment = _totalGons / _totalSupply;
    emit Donation(_msgSender(), _amount, _totalSupply);
  }

  /// @notice Returns the reserve ratio
  /// @return _e18reserveRatio The USDA reserve ratio
  function reserveRatio() external view override returns (uint192 _e18reserveRatio) {
    _e18reserveRatio = _safeu192((reserveAmount * EXP_SCALE) / _totalSupply);
  }

  /*///////////////////////////////////////////////////////////////
                                ROLES
    //////////////////////////////////////////////////////////////*/

  /// @notice Adds a new vault controller
  /// @param _vaultController The new vault controller to add
  function addVaultController(address _vaultController) external onlyOwner {
    _vaultControllers.add(_vaultController);
    _grantRole(VAULT_CONTROLLER_ROLE, _vaultController);

    emit VaultControllerAdded(_vaultController);
  }

  /// @notice Removes a vault controller
  /// @param _vaultController The vault controller to remove
  function removeVaultController(address _vaultController) external onlyOwner {
    _vaultControllers.remove(_vaultController);
    _revokeRole(VAULT_CONTROLLER_ROLE, _vaultController);

    emit VaultControllerRemoved(_vaultController);
  }

  /// @notice Removes a vault controller from the list
  /// @param _vaultController The vault controller to remove
  /// @dev The vault controller is removed from the list but keeps the role as to not brick it
  function removeVaultControllerFromList(address _vaultController) external onlyOwner {
    _vaultControllers.remove(_vaultController);

    emit VaultControllerRemovedFromList(_vaultController);
  }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

// @title Exponential module for storing fixed-precision decimals
// @author Compound
// @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.
//        Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:
//        `Exp({mantissa: 5100000000000000000})`.
contract ExponentialNoError {
  uint256 public constant EXP_SCALE = 1e18;
  uint256 public constant DOUBLE_SCALE = 1e36;
  uint256 public constant HALF_EXP_SCALE = EXP_SCALE / 2;
  uint256 public constant MANTISSA_ONE = EXP_SCALE;
  uint256 public constant UINT192_MAX = type(uint192).max;
  uint256 public constant UINT128_MAX = type(uint128).max;

  struct Exp {
    uint256 mantissa;
  }

  struct Double {
    uint256 mantissa;
  }

  // @dev Truncates the given exp to a whole number value.
  //      For example, truncate(Exp{mantissa: 15 * EXP_SCALE}) = 15
  function _truncate(Exp memory _exp) internal pure returns (uint256 _result) {
    return _exp.mantissa / EXP_SCALE;
  }

  function _truncate(uint256 _u) internal pure returns (uint256 _result) {
    return _u / EXP_SCALE;
  }

  function _safeu192(uint256 _u) internal pure returns (uint192 _result) {
    require(_u < UINT192_MAX, 'overflow');
    return uint192(_u);
  }

  function _safeu128(uint256 _u) internal pure returns (uint128 _result) {
    require(_u < UINT128_MAX, 'overflow');
    return uint128(_u);
  }

  // @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.
  function _mulScalarTruncate(Exp memory _a, uint256 _scalar) internal pure returns (uint256 _result) {
    Exp memory _product = _mul(_a, _scalar);
    return _truncate(_product);
  }

  // @dev Multiply an Exp by a scalar, truncate, then _add an to an unsigned integer, returning an unsigned integer.
  function _mulScalarTruncateAddUInt(
    Exp memory _a,
    uint256 _scalar,
    uint256 _addend
  ) internal pure returns (uint256 _result) {
    Exp memory _product = _mul(_a, _scalar);
    return _add(_truncate(_product), _addend);
  }

  // @dev Checks if first Exp is less than second Exp.
  function _lessThanExp(Exp memory _left, Exp memory _right) internal pure returns (bool _result) {
    return _left.mantissa < _right.mantissa;
  }

  // @dev Checks if left Exp <= right Exp.
  function _lessThanOrEqualExp(Exp memory _left, Exp memory _right) internal pure returns (bool _result) {
    return _left.mantissa <= _right.mantissa;
  }

  // @dev Checks if left Exp > right Exp.
  function _greaterThanExp(Exp memory _left, Exp memory _right) internal pure returns (bool _result) {
    return _left.mantissa > _right.mantissa;
  }

  // @dev returns true if Exp is exactly zero
  function _isZeroExp(Exp memory _value) internal pure returns (bool _result) {
    return _value.mantissa == 0;
  }

  function _safe224(uint256 _n, string memory _errorMessage) internal pure returns (uint224 _result) {
    require(_n < 2 ** 224, _errorMessage);
    return uint224(_n);
  }

  function _safe32(uint256 _n, string memory _errorMessage) internal pure returns (uint32 _result) {
    require(_n < 2 ** 32, _errorMessage);
    return uint32(_n);
  }

  function _add(Exp memory _a, Exp memory _b) internal pure returns (Exp memory _result) {
    return Exp({mantissa: _add(_a.mantissa, _b.mantissa)});
  }

  function _add(Double memory _a, Double memory _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _add(_a.mantissa, _b.mantissa)});
  }

  function _add(uint256 _a, uint256 _b) internal pure returns (uint256 _result) {
    return _add(_a, _b, 'addition overflow');
  }

  function _add(uint256 _a, uint256 _b, string memory _errorMessage) internal pure returns (uint256 _result) {
    uint256 _c = _a + _b;
    require(_c >= _a, _errorMessage);
    return _c;
  }

  function _sub(Exp memory _a, Exp memory _b) internal pure returns (Exp memory _result) {
    return Exp({mantissa: _sub(_a.mantissa, _b.mantissa)});
  }

  function _sub(Double memory _a, Double memory _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _sub(_a.mantissa, _b.mantissa)});
  }

  function _sub(uint256 _a, uint256 _b) internal pure returns (uint256 _result) {
    return _sub(_a, _b, 'subtraction underflow');
  }

  function _sub(uint256 _a, uint256 _b, string memory _errorMessage) internal pure returns (uint256 _result) {
    require(_b <= _a, _errorMessage);
    return _a - _b;
  }

  function _mul(Exp memory _a, Exp memory _b) internal pure returns (Exp memory _result) {
    return Exp({mantissa: _mul(_a.mantissa, _b.mantissa) / EXP_SCALE});
  }

  function _mul(Exp memory _a, uint256 _b) internal pure returns (Exp memory _result) {
    return Exp({mantissa: _mul(_a.mantissa, _b)});
  }

  function _mul(uint256 _a, Exp memory _b) internal pure returns (uint256 _result) {
    return _mul(_a, _b.mantissa) / EXP_SCALE;
  }

  function _mul(Double memory _a, Double memory _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _mul(_a.mantissa, _b.mantissa) / DOUBLE_SCALE});
  }

  function _mul(Double memory _a, uint256 _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _mul(_a.mantissa, _b)});
  }

  function _mul(uint256 _a, Double memory _b) internal pure returns (uint256 _result) {
    return _mul(_a, _b.mantissa) / DOUBLE_SCALE;
  }

  function _mul(uint256 _a, uint256 _b) internal pure returns (uint256 _result) {
    return _mul(_a, _b, 'multiplication overflow');
  }

  function _mul(uint256 _a, uint256 _b, string memory _errorMessage) internal pure returns (uint256 _result) {
    if (_a == 0 || _b == 0) return 0;
    uint256 _c = _a * _b;
    require(_c / _a == _b, _errorMessage);
    return _c;
  }

  function _div(Exp memory _a, Exp memory _b) internal pure returns (Exp memory _result) {
    return Exp({mantissa: _div(_mul(_a.mantissa, EXP_SCALE), _b.mantissa)});
  }

  function _div(Exp memory _a, uint256 _b) internal pure returns (Exp memory _result) {
    return Exp({mantissa: _div(_a.mantissa, _b)});
  }

  function _div(uint256 _a, Exp memory _b) internal pure returns (uint256 _result) {
    return _div(_mul(_a, EXP_SCALE), _b.mantissa);
  }

  function _div(Double memory _a, Double memory _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _div(_mul(_a.mantissa, DOUBLE_SCALE), _b.mantissa)});
  }

  function _div(Double memory _a, uint256 _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _div(_a.mantissa, _b)});
  }

  function _div(uint256 _a, Double memory _b) internal pure returns (uint256 _result) {
    return _div(_mul(_a, DOUBLE_SCALE), _b.mantissa);
  }

  function _div(uint256 _a, uint256 _b) internal pure returns (uint256 _result) {
    return _div(_a, _b, 'divide by zero');
  }

  function _div(uint256 _a, uint256 _b, string memory _errorMessage) internal pure returns (uint256 _result) {
    require(_b > 0, _errorMessage);
    return _a / _b;
  }

  function _fraction(uint256 _a, uint256 _b) internal pure returns (Double memory _result) {
    return Double({mantissa: _div(_mul(_a, DOUBLE_SCALE), _b)});
  }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import {IRoles} from '@interfaces/utils/IRoles.sol';
import {AccessControl} from '@openzeppelin/contracts/access/AccessControl.sol';

abstract contract Roles is IRoles, AccessControl {
  // @notice Checks if an account has a particular role
  // @param  _role The role that the account needs to have
  // @param  _account The account to check for the role
  function _checkRole(bytes32 _role, address _account) internal view override {
    if (!hasRole(_role, _account)) revert Roles_Unauthorized(_account, _role);
  }
}

// SPDX-License-Identifier: MIT
/* solhint-disable */
pragma solidity ^0.8.9;

import {Ownable} from '@openzeppelin/contracts/access/Ownable.sol';
import {IERC20Metadata} from '@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol';

// @title uFragments ERC20 token
// @notice USDA uses the uFragments concept from the Ideal Money project to play interest
//      Implementation is shamelessly borrowed from Ampleforth project
//      uFragments is a normal ERC20 token, but its supply can be adjusted by splitting and
//      combining tokens proportionally across all wallets.
//
//
//      uFragment balances are internally represented with a hidden denomination, 'gons'.
//      We support splitting the currency in expansion and combining the currency on contraction by
//      changing the exchange rate between the hidden 'gons' and the public 'fragments'.
contract UFragments is Ownable, IERC20Metadata {
  // PLEASE READ BEFORE CHANGING ANY ACCOUNTING OR MATH
  // Anytime there is division, there is a risk of numerical instability from rounding errors. In
  // order to minimize this risk, we adhere to the following guidelines:
  // 1) The conversion rate adopted is the number of gons that equals 1 fragment.
  //    The inverse rate must not be used--_totalGons is always the numerator and _totalSupply is
  //    always the denominator. (i.e. If you want to convert gons to fragments instead of
  //    multiplying by the inverse rate, you should divide by the normal rate)
  // 2) Gon balances converted into Fragments are always rounded down (truncated).
  //
  // We make the following guarantees:
  // - If address 'A' transfers x Fragments to address 'B'. A's resulting external balance will
  //   be decreased by precisely x Fragments, and B's external balance will be precisely
  //   increased by x Fragments.
  //
  // We do not guarantee that the sum of all balances equals the result of calling totalSupply().
  // This is because, for any conversion function 'f()' that has non-zero rounding error,
  // f(x0) + f(x1) + ... + f(xn) is not always equal to f(x0 + x1 + ... xn).

  event LogRebase(uint256 indexed epoch, uint256 totalSupply);
  event LogMonetaryPolicyUpdated(address monetaryPolicy);

  /// @notice Thrown when the signature is invalid
  error UFragments_InvalidSignature();

  /// @notice Thrown when the recipient is invalid
  error UFragments_InvalidRecipient();

  // Used for authentication
  address public monetaryPolicy;

  modifier onlyMonetaryPolicy() {
    require(msg.sender == monetaryPolicy);
    _;
  }

  modifier validRecipient(address _to) {
    if (_to == address(0) || _to == address(this)) revert UFragments_InvalidRecipient();
    _;
  }

  uint256 private constant DECIMALS = 18;
  uint256 private constant MAX_UINT256 = 2 ** 256 - 1;
  uint256 private constant INITIAL_FRAGMENTS_SUPPLY = 1 * 10 ** DECIMALS;

  // _totalGons is a multiple of INITIAL_FRAGMENTS_SUPPLY so that _gonsPerFragment is an integer.
  // Use the highest value that fits in a uint256 for max granularity.
  uint256 public _totalGons; // = INITIAL_FRAGMENTS_SUPPLY * 10**48;

  // MAX_SUPPLY = maximum integer < (sqrt(4*_totalGons + 1) - 1) / 2
  uint256 public MAX_SUPPLY; // = type(uint128).max; // (2^128) - 1

  uint256 public _totalSupply;
  uint256 public _gonsPerFragment;
  mapping(address => uint256) public _gonBalances;

  string public name;
  string public symbol;
  uint8 public constant decimals = uint8(DECIMALS);

  // This is denominated in Fragments, because the gons-fragments conversion might change before
  // it's fully paid.
  mapping(address => mapping(address => uint256)) private _allowedFragments;

  // EIP-2612: permit – 712-signed approvals
  // https://eips.ethereum.org/EIPS/eip-2612
  string public constant EIP712_REVISION = '1';
  bytes32 public constant EIP712_DOMAIN =
    keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)');
  bytes32 public constant PERMIT_TYPEHASH =
    keccak256('Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)');

  // EIP-2612: keeps track of number of permits per address
  mapping(address => uint256) private _nonces;

  constructor(string memory _name, string memory _symbol) {
    name = _name;
    symbol = _symbol;

    //set og initial values
    _totalGons = INITIAL_FRAGMENTS_SUPPLY * 10 ** 48;
    MAX_SUPPLY = 2 ** 128 - 1;
    _totalSupply = INITIAL_FRAGMENTS_SUPPLY;
    _gonBalances[address(0x0)] = _totalGons; //send starting supply to a burner address so _totalSupply is never 0
    _gonsPerFragment = _totalGons / _totalSupply;
    emit Transfer(address(this), address(0x0), _totalSupply);
  }

  // @param _monetaryPolicy The address of the monetary policy contract to use for authentication.
  function setMonetaryPolicy(address _monetaryPolicy) external onlyOwner {
    monetaryPolicy = _monetaryPolicy;
    emit LogMonetaryPolicyUpdated(_monetaryPolicy);
  }

  // @notice returns the total supply
  // @return __totalSupply The total number of fragments.
  function totalSupply() external view override returns (uint256 __totalSupply) {
    return _totalSupply;
  }

  // @param _who The address to query.
  // @return _balance The balance of the specified address.
  function balanceOf(address _who) external view override returns (uint256 _balance) {
    return _gonBalances[_who] / _gonsPerFragment;
  }

  // @param _who The address to query.
  // @return _balance The gon balance of the specified address.
  function scaledBalanceOf(address _who) external view returns (uint256 _balance) {
    return _gonBalances[_who];
  }

  // @notice Returns the scaled total supply
  // @return __totalGons the total number of gons.
  function scaledTotalSupply() external view returns (uint256 __totalGons) {
    return _totalGons;
  }

  // @notice Returns the nonces of a given address
  // @param _who The address to query.
  // @return _addressNonces The number of successful permits by the specified address.
  function nonces(address _who) public view returns (uint256 _addressNonces) {
    return _nonces[_who];
  }

  // @notice Returns the EIP712 domain separator
  // @return _domainSeparator The computed DOMAIN_SEPARATOR to be used off-chain services
  //         which implement EIP-712.
  //         https://eips.ethereum.org/EIPS/eip-2612
  function DOMAIN_SEPARATOR() public view returns (bytes32 _domainSeparator) {
    uint256 _chainId;
    assembly {
      _chainId := chainid()
    }
    return keccak256(
      abi.encode(EIP712_DOMAIN, keccak256(bytes(name)), keccak256(bytes(EIP712_REVISION)), _chainId, address(this))
    );
  }

  // @notice Transfer tokens to a specified address.
  // @param _to The address to transfer to.
  // @param _value The amount to be transferred.
  // @return _success True on success, false otherwise.
  function transfer(address _to, uint256 _value) external override validRecipient(_to) returns (bool _success) {
    uint256 _gonValue = _value * _gonsPerFragment;

    _gonBalances[msg.sender] = _gonBalances[msg.sender] - _gonValue;
    _gonBalances[_to] = _gonBalances[_to] + _gonValue;

    emit Transfer(msg.sender, _to, _value);
    return true;
  }

  // @notice Transfer all of the sender's wallet balance to a specified address.
  // @param _to The address to transfer to.
  // @return _success True on success, false otherwise.
  function transferAll(address _to) external validRecipient(_to) returns (bool _success) {
    uint256 _gonValue = _gonBalances[msg.sender];
    uint256 _value = _gonValue / _gonsPerFragment;

    delete _gonBalances[msg.sender];
    _gonBalances[_to] = _gonBalances[_to] + _gonValue;

    emit Transfer(msg.sender, _to, _value);
    return true;
  }

  // @notice Function to check the amount of tokens that an owner has allowed to a spender.
  // @param _owner The address which owns the funds.
  // @param _spender The address which will spend the funds.
  // @return _remaining The number of tokens still available for the _spender.
  function allowance(address _owner, address _spender) external view override returns (uint256 _remaining) {
    return _allowedFragments[_owner][_spender];
  }

  // @notice Transfer tokens from one address to another.
  // @param _from The address you want to send tokens from.
  // @param _to The address you want to transfer to.
  // @param _value The amount of tokens to be transferred.
  // @return _success True on success, false otherwise.
  function transferFrom(
    address _from,
    address _to,
    uint256 _value
  ) external override validRecipient(_to) returns (bool _success) {
    _allowedFragments[_from][msg.sender] = _allowedFragments[_from][msg.sender] - _value;

    uint256 _gonValue = _value * _gonsPerFragment;
    _gonBalances[_from] = _gonBalances[_from] - _gonValue;
    _gonBalances[_to] = _gonBalances[_to] + _gonValue;

    emit Transfer(_from, _to, _value);
    return true;
  }

  // @notice Transfer all balance tokens from one address to another.
  // @param _from The address you want to send tokens from.
  // @param _to The address you want to transfer to.
  // @return _success True on success, false otherwise.
  function transferAllFrom(address _from, address _to) external validRecipient(_to) returns (bool _success) {
    uint256 _gonValue = _gonBalances[_from];
    uint256 _value = _gonValue / _gonsPerFragment;

    _allowedFragments[_from][msg.sender] = _allowedFragments[_from][msg.sender] - _value;

    delete _gonBalances[_from];
    _gonBalances[_to] = _gonBalances[_to] + _gonValue;

    emit Transfer(_from, _to, _value);
    return true;
  }

  // @notice Approve the passed address to spend the specified amount of tokens on behalf of
  // msg.sender. This method is included for ERC20 compatibility.
  // increaseAllowance and decreaseAllowance should be used instead.
  // Changing an allowance with this method brings the risk that someone may transfer both
  // the old and the new allowance - if they are both greater than zero - if a transfer
  // transaction is mined before the later approve() call is mined.
  //
  // @param _spender The address which will spend the funds.
  // @param _value The amount of tokens to be spent.
  // @return _success True on success, false otherwise.
  function approve(address _spender, uint256 _value) external override returns (bool _success) {
    _allowedFragments[msg.sender][_spender] = _value;

    emit Approval(msg.sender, _spender, _value);
    return true;
  }

  // @notice Increase the amount of tokens that an owner has allowed to a spender.
  // This method should be used instead of approve() to avoid the double approval vulnerability
  // described above.
  // @param _spender The address which will spend the funds.
  // @param _addedValue The amount of tokens to increase the allowance by.
  // @return _success True on success, false otherwise.
  function increaseAllowance(address _spender, uint256 _addedValue) public returns (bool _success) {
    _allowedFragments[msg.sender][_spender] = _allowedFragments[msg.sender][_spender] + _addedValue;

    emit Approval(msg.sender, _spender, _allowedFragments[msg.sender][_spender]);
    return true;
  }

  // @notice Decrease the amount of tokens that an owner has allowed to a spender.
  // @param _spender The address which will spend the funds.
  // @param _subtractedValue The amount of tokens to decrease the allowance by.
  // @return _success True on success, false otherwise.
  function decreaseAllowance(address _spender, uint256 _subtractedValue) external returns (bool _success) {
    uint256 _oldValue = _allowedFragments[msg.sender][_spender];
    _allowedFragments[msg.sender][_spender] = (_subtractedValue >= _oldValue) ? 0 : _oldValue - _subtractedValue;

    emit Approval(msg.sender, _spender, _allowedFragments[msg.sender][_spender]);
    return true;
  }

  // @notice Allows for approvals to be made via secp256k1 signatures.
  // @param _owner The owner of the funds
  // @param _spender The _spender
  // @param _value The amount
  // @param _deadline The deadline timestamp, type(uint256).max for max deadline
  // @param _v Signature param
  // @param _s Signature param
  // @param _r Signature param
  function permit(
    address _owner,
    address _spender,
    uint256 _value,
    uint256 _deadline,
    uint8 _v,
    bytes32 _r,
    bytes32 _s
  ) public {
    require(block.timestamp <= _deadline);

    uint256 _ownerNonce = _nonces[_owner];
    bytes32 _permitDataDigest = keccak256(abi.encode(PERMIT_TYPEHASH, _owner, _spender, _value, _ownerNonce, _deadline));
    bytes32 _digest = keccak256(abi.encodePacked('\x19\x01', DOMAIN_SEPARATOR(), _permitDataDigest));

    if (uint256(_s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
      revert UFragments_InvalidSignature();
    }
    require(_owner == ecrecover(_digest, _v, _r, _s));
    if (_owner == address(0x0)) revert UFragments_InvalidSignature();

    _nonces[_owner] = _ownerNonce + 1;

    _allowedFragments[_owner][_spender] = _value;
    emit Approval(_owner, _spender, _value);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {IRoles} from '@interfaces/utils/IRoles.sol';

import {IERC20Metadata, IERC20} from '@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol';

/// @title USDA Interface
/// @notice extends IERC20Metadata
interface IUSDA is IERC20Metadata, IRoles {
  /*///////////////////////////////////////////////////////////////
                              EVENTS
    //////////////////////////////////////////////////////////////*/

  // @notice Emitted when a deposit is made
  // @param _from The address which made the deposit
  // @param _value The value deposited

  event Deposit(address indexed _from, uint256 _value);

  // @notice Emitted when a withdraw is made
  // @param _from The address which made the withdraw
  // @param _value The value withdrawn

  event Withdraw(address indexed _from, uint256 _value);

  // @notice Emitted when a mint is made
  // @param _to The address which made the mint
  // @param _value The value minted

  event Mint(address _to, uint256 _value);

  // @notice Emitted when a burn is made
  // @param _from The address which made the burn
  // @param _value The value burned

  event Burn(address _from, uint256 _value);

  // @notice Emitted when a donation is made
  // @param _from The address which made the donation
  // @param _value The value of the donation
  // @param _totalSupply The new total supply

  event Donation(address indexed _from, uint256 _value, uint256 _totalSupply);

  // @notice Emitted when the owner recovers dust
  // @param _receiver The address which made the recover
  // @param _amount The value recovered

  event RecoveredDust(address indexed _receiver, uint256 _amount);

  // @notice Emitted when the owner sets a pauser
  // @param _pauser The new pauser address

  event PauserSet(address indexed _pauser);

  // @notice Emitted when a sUSD transfer is made from the vaultController
  // @param _target The receiver of the transfer
  // @param _susdAmount The amount sent

  event VaultControllerTransfer(address _target, uint256 _susdAmount);

  // @notice Emitted when the owner adds a new vaultController giving special roles
  // @param _vaultController The address of the vault controller

  event VaultControllerAdded(address indexed _vaultController);

  // @notice Emitted when the owner removes a vaultController removing special roles
  // @param _vaultController The address of the vault controller

  event VaultControllerRemoved(address indexed _vaultController);

  // @notice Emitted when the owner removes a vaultController from the list
  // @param _vaultController The address of the vault controller

  event VaultControllerRemovedFromList(address indexed _vaultController);

  /*///////////////////////////////////////////////////////////////
                              ERRORS
    //////////////////////////////////////////////////////////////*/

  /// @notice Thrown when trying to deposit zero amount
  error USDA_ZeroAmount();

  /// @notice Thrown when trying to withdraw more than the balance
  error USDA_InsufficientFunds();

  /// @notice Thrown when trying to withdraw all but the reserve amount is 0
  error USDA_EmptyReserve();

  /// @notice Thrown when _msgSender is not the pauser of the contract
  error USDA_OnlyPauser();

  /// @notice Thrown when vault controller is trying to burn more than the balance
  error USDA_NotEnoughBalance();

  /*///////////////////////////////////////////////////////////////
                            VARIABLES
    //////////////////////////////////////////////////////////////*/

  /// @notice Returns sUSD contract (reserve)
  /// @return _sUSD The sUSD contract
  function sUSD() external view returns (IERC20 _sUSD);

  /// @notice Returns the reserve ratio
  /// @return _reserveRatio The reserve ratio
  function reserveRatio() external view returns (uint192 _reserveRatio);

  /// @notice Returns the reserve amount
  /// @return _reserveAmount The reserve amount
  function reserveAmount() external view returns (uint256 _reserveAmount);

  /// @notice The address of the pauser
  function pauser() external view returns (address _pauser);

  /*///////////////////////////////////////////////////////////////
                              LOGIC
    //////////////////////////////////////////////////////////////*/

  /// @notice Deposit sUSD to mint USDA
  /// @dev Caller should obtain 1 USDA for each sUSD
  /// the calculations for deposit mimic the calculations done by mint in the ampleforth contract, simply with the susd transfer
  /// 'fragments' are the units that we see, so 1000 fragments == 1000 USDA
  /// 'gons' are the internal accounting unit, used to keep scale.
  /// We use the variable _gonsPerFragment in order to convert between the two
  /// try dimensional analysis when doing the math in order to verify units are correct
  /// @param _susdAmount The amount of sUSD to deposit
  function deposit(uint256 _susdAmount) external;

  /// @notice Deposits sUSD to mint USDA and transfer to a different address
  /// @param _susdAmount The amount of sUSD to deposit
  /// @param _target The address to receive the USDA tokens
  function depositTo(uint256 _susdAmount, address _target) external;

  /// @notice Withdraw sUSD by burning USDA
  /// @dev The caller should obtain 1 sUSD for every 1 USDA
  /// @param _susdAmount The amount of sUSD to withdraw
  function withdraw(uint256 _susdAmount) external;

  /// @notice Withdraw sUSD to a specific address by burning USDA from the caller
  /// @dev The _target address should obtain 1 sUSD for every 1 USDA burned from the caller
  /// @param _susdAmount amount of sUSD to withdraw
  /// @param _target address to receive the sUSD
  function withdrawTo(uint256 _susdAmount, address _target) external;

  /// @notice Withdraw sUSD by burning USDA
  /// @dev The caller should obtain 1 sUSD for every 1 USDA
  /// @dev This function is effectively just withdraw, but we calculate the amount for the sender
  /// @param _susdWithdrawn The amount os sUSD withdrawn
  function withdrawAll() external returns (uint256 _susdWithdrawn);

  /// @notice Withdraw sUSD by burning USDA
  /// @dev This function is effectively just withdraw, but we calculate the amount for the _target
  /// @param _target should obtain 1 sUSD for every 1 USDA burned from caller
  /// @param _susdWithdrawn The amount os sUSD withdrawn
  function withdrawAllTo(address _target) external returns (uint256 _susdWithdrawn);

  /// @notice Donates susd to the protocol reserve
  /// @param _susdAmount The amount of sUSD to donate
  function donate(uint256 _susdAmount) external;

  /// @notice Recovers accidentally sent sUSD to this contract
  /// @param _to The receiver of the dust
  function recoverDust(address _to) external;

  /// @notice Sets the pauser for both USDA and VaultController
  /// @dev The pauser is a separate role from the owner
  function setPauser(address _pauser) external;

  /// @notice Pause contract
  /// @dev Can only be called by the pauser
  function pause() external;

  /// @notice Unpause contract, pauser only
  /// @dev Can only be called by the pauser
  function unpause() external;

  /// @notice Admin function to mint USDA
  /// @param _susdAmount The amount of USDA to mint, denominated in sUSD
  function mint(uint256 _susdAmount) external;

  /// @notice Admin function to burn USDA
  /// @param _susdAmount The amount of USDA to burn, denominated in sUSD
  function burn(uint256 _susdAmount) external;

  /// @notice Function for the vaultController to burn
  /// @param _target The address to burn the USDA from
  /// @param _amount The amount of USDA to burn
  function vaultControllerBurn(address _target, uint256 _amount) external;

  /// @notice Function for the vaultController to mint
  /// @param _target The address to mint the USDA to
  /// @param _amount The amount of USDA to mint
  function vaultControllerMint(address _target, uint256 _amount) external;

  /// @notice Allows VaultController to send sUSD from the reserve
  /// @param _target The address to receive the sUSD from reserve
  /// @param _susdAmount The amount of sUSD to send
  function vaultControllerTransfer(address _target, uint256 _susdAmount) external;

  /// @notice Function for the vaultController to scale all USDA balances
  /// @param _amount The amount of USDA (e18) to donate
  function vaultControllerDonate(uint256 _amount) external;

  /// @notice Adds a new vault controller
  /// @param _vaultController The new vault controller to add
  function addVaultController(address _vaultController) external;

  /// @notice Removes a vault controller
  /// @param _vaultController The vault controller to remove
  function removeVaultController(address _vaultController) external;

  /// @notice Removes a vault controller from the loop list
  /// @param _vaultController The vault controller to remove
  function removeVaultControllerFromList(address _vaultController) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {CurveMaster} from '@contracts/periphery/CurveMaster.sol';
import {IOracleRelay} from '@interfaces/periphery/IOracleRelay.sol';
import {IBooster} from '@interfaces/utils/IBooster.sol';
import {IBaseRewardPool} from '@interfaces/utils/IBaseRewardPool.sol';
import {IVaultDeployer} from '@interfaces/core/IVaultDeployer.sol';
import {IAMPHClaimer} from '@interfaces/core/IAMPHClaimer.sol';
import {IUSDA} from '@interfaces/core/IUSDA.sol';

/// @title VaultController Interface
interface IVaultController {
  /*///////////////////////////////////////////////////////////////
                            EVENTS
    //////////////////////////////////////////////////////////////*/

  // @notice Emited when payInterest is called to accrue interest and distribute it
  // @param _epoch The block timestamp when the function called
  // @param _amount The increase amount of the interest factor
  // @param _curveVal The value at the curve
  event InterestEvent(uint64 _epoch, uint192 _amount, uint256 _curveVal);

  // @notice Emited when a new protocol fee is being set
  // @param _protocolFee The new fee for the protocol
  event NewProtocolFee(uint192 _protocolFee);

  // @notice Emited when a new erc20 token is being registered as acceptable collateral
  // @param _tokenAddress The addres of the erc20 token
  // @param _ltv The loan to value amount of the erc20
  // @param _oracleAddress The address of the oracle to use to fetch the price
  // @param _liquidationIncentive The liquidation penalty for the token
  // @param _cap The maximum amount that can be deposited
  event RegisteredErc20(
    address _tokenAddress, uint256 _ltv, address _oracleAddress, uint256 _liquidationIncentive, uint256 _cap
  );

  // @notice Emited when the information about an acceptable erc20 token is being update
  // @param _tokenAddress The addres of the erc20 token to update
  // @param _ltv The new loan to value amount of the erc20
  // @param _oracleAddress The new address of the oracle to use to fetch the price
  // @param _liquidationIncentive The new liquidation penalty for the token
  // @param _cap The maximum amount that can be deposited
  // @param _poolId The convex pool id of a crv lp token
  event UpdateRegisteredErc20(
    address _tokenAddress,
    uint256 _ltv,
    address _oracleAddress,
    uint256 _liquidationIncentive,
    uint256 _cap,
    uint256 _poolId
  );

  // @notice Emited when a new vault is being minted
  // @param _vaultAddress The address of the new vault
  // @param _vaultId The id of the vault
  // @param _vaultOwner The address of the owner of the vault
  event NewVault(address _vaultAddress, uint256 _vaultId, address _vaultOwner);

  // @notice Emited when the owner registers a curve master
  // @param _curveMasterAddress The address of the curve master
  event RegisterCurveMaster(address _curveMasterAddress);

  // @notice Emited when someone successfully borrows USDA
  // @param _vaultId The id of the vault that borrowed against
  // @param _vaultAddress The address of the vault that borrowed against
  // @param _borrowAmount The amounnt that was borrowed
  // @param _fee The fee assigned to the treasury
  event BorrowUSDA(uint256 _vaultId, address _vaultAddress, uint256 _borrowAmount, uint256 _fee);

  // @notice Emited when someone successfully repayed a vault's loan
  // @param _vaultId The id of the vault that was repayed
  // @param _vaultAddress The address of the vault that was repayed
  // @param _repayAmount The amount that was repayed
  event RepayUSDA(uint256 _vaultId, address _vaultAddress, uint256 _repayAmount);

  // @notice Emited when someone successfully liquidates a vault
  // @param _vaultId The id of the vault that was liquidated
  // @param _assetAddress The address of the token that was liquidated
  // @param _usdaToRepurchase The amount of USDA that was repurchased
  // @param _tokensToLiquidate The number of tokens that were taken from the vault and sent to the liquidator
  // @param _liquidationFee The number of tokens that were taken from the fee and sent to the treasury
  event Liquidate(
    uint256 _vaultId,
    address _assetAddress,
    uint256 _usdaToRepurchase,
    uint256 _tokensToLiquidate,
    uint256 _liquidationFee
  );

  // @notice Emited when governance changes the claimer contract
  //  @param _oldClaimerContract The old claimer contract
  //  @param _newClaimerContract The new claimer contract
  event ChangedClaimerContract(IAMPHClaimer _oldClaimerContract, IAMPHClaimer _newClaimerContract);

  // @notice Emited when the owner registers the USDA contract
  // @param _usdaContractAddress The address of the USDA contract
  event RegisterUSDA(address _usdaContractAddress);

  // @notice Emited when governance changes the initial borrowing fee
  //  @param _oldBorrowingFee The old borrowing fee
  //  @param _newBorrowingFee The new borrowing fee
  event ChangedInitialBorrowingFee(uint192 _oldBorrowingFee, uint192 _newBorrowingFee);

  // @notice Emited when governance changes the liquidation fee
  //  @param _oldLiquidationFee The old liquidation fee
  //  @param _newLiquidationFee The new liquidation fee
  event ChangedLiquidationFee(uint192 _oldLiquidationFee, uint192 _newLiquidationFee);

  // @notice Emited when collaterals are migrated from old vault controller
  //  @param _oldVaultController The old vault controller migrated from
  //  @param _tokenAddresses The list of new collaterals
  event CollateralsMigratedFrom(IVaultController _oldVaultController, address[] _tokenAddresses);

  /*///////////////////////////////////////////////////////////////
                            ERRORS
    //////////////////////////////////////////////////////////////*/

  /// @notice Thrown when token has invalid amount of decimals
  error VaultController_TooManyDecimals();

  /// @notice Thrown when _msgSender is not the pauser of the contract
  error VaultController_OnlyPauser();

  /// @notice Thrown when the fee is too large
  error VaultController_FeeTooLarge();

  /// @notice Thrown when oracle does not exist
  error VaultController_OracleNotRegistered();

  /// @notice Thrown when the token is already registered
  error VaultController_TokenAlreadyRegistered();

  /// @notice Thrown when the token is not registered
  error VaultController_TokenNotRegistered();

  /// @notice Thrown when the _ltv is incompatible
  error VaultController_LTVIncompatible();

  /// @notice Thrown when _msgSender is not the minter
  error VaultController_OnlyMinter();

  /// @notice Thrown when vault is insolvent
  error VaultController_VaultInsolvent();

  /// @notice Thrown when repay is grater than borrow
  error VaultController_RepayTooMuch();

  /// @notice Thrown when trying to liquidate 0 tokens
  error VaultController_LiquidateZeroTokens();

  /// @notice Thrown when trying to liquidate more than is possible
  error VaultController_OverLiquidation();

  /// @notice Thrown when vault is solvent
  error VaultController_VaultSolvent();

  /// @notice Thrown when vault does not exist
  error VaultController_VaultDoesNotExist();

  /// @notice Thrown when migrating collaterals to a new vault controller
  error VaultController_WrongCollateralAddress();

  /// @notice Thrown when a not valid vault is trying to modify the total deposited
  error VaultController_NotValidVault();

  /// @notice Thrown when a deposit surpass the cap
  error VaultController_CapReached();

  /// @notice Thrown when registering a crv lp token with wrong address
  error VaultController_TokenAddressDoesNotMatchLpAddress();

  /*///////////////////////////////////////////////////////////////
                            ENUMS
  //////////////////////////////////////////////////////////////*/

  enum CollateralType {
    Single,
    CurveLPStakedOnConvex
  }

  /*///////////////////////////////////////////////////////////////
                            STRUCTS
    //////////////////////////////////////////////////////////////*/

  struct VaultSummary {
    uint96 id;
    uint192 borrowingPower;
    uint192 vaultLiability;
    address[] tokenAddresses;
    uint256[] tokenBalances;
  }

  struct Interest {
    uint64 lastTime;
    uint192 factor;
  }

  struct CollateralInfo {
    uint256 tokenId;
    uint256 ltv;
    uint256 cap;
    uint256 totalDeposited;
    uint256 liquidationIncentive;
    IOracleRelay oracle;
    CollateralType collateralType;
    IBaseRewardPool crvRewardsContract;
    uint256 poolId;
    uint256 decimals;
  }

  /*///////////////////////////////////////////////////////////////
                            VARIABLES
    //////////////////////////////////////////////////////////////*/

  /// @notice Total number of tokens registered
  function tokensRegistered() external view returns (uint256 _tokensRegistered);

  /// @notice Total number of minted vaults
  function vaultsMinted() external view returns (uint96 _vaultsMinted);

  /// @notice Returns the block timestamp when pay interest was last called
  /// @return _lastInterestTime The block timestamp when pay interest was last called
  function lastInterestTime() external view returns (uint64 _lastInterestTime);

  /// @notice Total base liability
  function totalBaseLiability() external view returns (uint192 _totalBaseLiability);

  /// @notice Returns the latest interest factor
  /// @return _interestFactor The latest interest factor
  function interestFactor() external view returns (uint192 _interestFactor);

  /// @notice The protocol's fee
  function protocolFee() external view returns (uint192 _protocolFee);

  /// @notice The max allowed to be set as borrowing fee
  function MAX_INIT_BORROWING_FEE() external view returns (uint192 _maxInitBorrowingFee);

  /// @notice The initial borrowing fee (1e18 == 100%)
  function initialBorrowingFee() external view returns (uint192 _initialBorrowingFee);

  /// @notice The fee taken from the liquidator profit (1e18 == 100%)
  function liquidationFee() external view returns (uint192 _liquidationFee);

  /// @notice Returns an array of all the vault ids a specific wallet has
  /// @param _wallet The address of the wallet to target
  /// @return _vaultIDs The ids of the vaults the wallet has
  function vaultIDs(address _wallet) external view returns (uint96[] memory _vaultIDs);

  /// @notice Returns an array of all enabled tokens
  /// @return _enabledToken The array containing the token addresses
  function enabledTokens(uint256 _index) external view returns (address _enabledToken);

  /// @notice Returns the address of the curve master
  function curveMaster() external view returns (CurveMaster _curveMaster);

  /// @notice Returns the token id given a token's address
  /// @param _tokenAddress The address of the token to target
  /// @return _tokenId The id of the token
  function tokenId(address _tokenAddress) external view returns (uint256 _tokenId);

  /// @notice Returns the oracle given a token's address
  /// @param _tokenAddress The id of the token
  /// @return _oracle The address of the token's oracle
  function tokensOracle(address _tokenAddress) external view returns (IOracleRelay _oracle);

  /// @notice Returns the ltv of a given token address
  /// @param _tokenAddress The address of the token
  /// @return _ltv The loan-to-value of a token
  function tokenLTV(address _tokenAddress) external view returns (uint256 _ltv);

  /// @notice Returns the liquidation incentive of an accepted token collateral
  /// @param _tokenAddress The address of the token
  /// @return _liquidationIncentive The liquidation incentive of the token
  function tokenLiquidationIncentive(address _tokenAddress) external view returns (uint256 _liquidationIncentive);

  /// @notice Returns the cap of a given token address
  /// @param _tokenAddress The address of the token
  /// @return _cap The cap of the token
  function tokenCap(address _tokenAddress) external view returns (uint256 _cap);

  /// @notice Returns the total deposited of a given token address
  /// @param _tokenAddress The address of the token
  /// @return _totalDeposited The total deposited of a token
  function tokenTotalDeposited(address _tokenAddress) external view returns (uint256 _totalDeposited);

  /// @notice Returns the collateral type of a token
  /// @param _tokenAddress The address of the token
  /// @return _type The collateral type of a token
  function tokenCollateralType(address _tokenAddress) external view returns (CollateralType _type);

  /// @notice Returns the address of the crvRewards contract
  /// @param _tokenAddress The address of the token
  /// @return _crvRewardsContract The address of the crvRewards contract
  function tokenCrvRewardsContract(address _tokenAddress) external view returns (IBaseRewardPool _crvRewardsContract);

  /// @notice Returns the pool id of a curve LP type token
  /// @dev    If the token is not of type CurveLPStakedOnConvex then it returns 0
  /// @param _tokenAddress The address of the token
  /// @return _poolId The pool id of a curve LP type token
  function tokenPoolId(address _tokenAddress) external view returns (uint256 _poolId);

  /// @notice Returns the collateral info of a given token address
  /// @param _tokenAddress The address of the token
  /// @return _collateralInfo The complete collateral info of the token
  function tokenCollateralInfo(address _tokenAddress) external view returns (CollateralInfo memory _collateralInfo);

  /// @notice The convex booster interface
  function BOOSTER() external view returns (IBooster _booster);

  /// @notice The amphora claimer interface
  function claimerContract() external view returns (IAMPHClaimer _claimerContract);

  /// @notice The vault deployer interface
  function VAULT_DEPLOYER() external view returns (IVaultDeployer _vaultDeployer);

  /// @notice The max decimals allowed for a listed token
  function MAX_DECIMALS() external view returns (uint8 _maxDecimals);

  /// @notice Returns an array of all enabled tokens
  /// @return _enabledTokens The array containing the token addresses
  function getEnabledTokens() external view returns (address[] memory _enabledTokens);

  /// @notice Returns the selected collaterals info. Will iterate from `_start` (included) until `_end` (not included)
  /// @param _start The start number to loop on the array
  /// @param _end The end number to loop on the array
  /// @return _collateralsInfo The array containing all the collateral info
  function getCollateralsInfo(
    uint256 _start,
    uint256 _end
  ) external view returns (CollateralInfo[] memory _collateralsInfo);

  /// @notice Returns the address of a vault given it's id
  /// @param _vaultID The id of the vault to target
  /// @return _vaultAddress The address of the targetted vault
  function vaultIdVaultAddress(uint96 _vaultID) external view returns (address _vaultAddress);

  /// @notice Returns true if a base reward contract was approved by governance
  /// @param _baseRewardContract The address of the baseRewardcontract to check
  /// @return _approved True if approved by governance
  function baseRewardContracts(address _baseRewardContract) external view returns (bool _approved);

  /// @notice Mapping of token address to collateral info
  function tokenAddressCollateralInfo(address _token)
    external
    view
    returns (
      uint256 _tokenId,
      uint256 _ltv,
      uint256 _cap,
      uint256 _totalDeposited,
      uint256 _liquidationIncentive,
      IOracleRelay _oracle,
      CollateralType _collateralType,
      IBaseRewardPool _crvRewardsContract,
      uint256 _poolId,
      uint256 _decimals
    );

  /// @notice The interest contract
  function interest() external view returns (uint64 _lastTime, uint192 _factor);

  /// @notice The usda interface
  function usda() external view returns (IUSDA _usda);

  /*///////////////////////////////////////////////////////////////
                            LOGIC
    //////////////////////////////////////////////////////////////*/

  /// @notice Returns the amount of USDA needed to reach even solvency without state changes
  /// @dev This amount is a moving target and changes with each block as payInterest is called
  /// @param _id The id of vault we want to target
  /// @return _usdaToSolvency The amount of USDA needed to reach even solvency
  function amountToSolvency(uint96 _id) external view returns (uint256 _usdaToSolvency);

  /// @notice Returns vault liability of vault
  /// @param _id The id of vault
  /// @return _liability The amount of USDA the vault owes
  function vaultLiability(uint96 _id) external view returns (uint192 _liability);

  /// @notice Returns the vault borrowing power for vault
  /// @dev Implementation in getVaultBorrowingPower
  /// @param _id The id of vault we want to target
  /// @return _borrowPower The amount of USDA the vault can borrow
  function vaultBorrowingPower(uint96 _id) external view returns (uint192 _borrowPower);

  /// @notice Returns the calculated amount of tokens to liquidate for a vault
  /// @dev The amount of tokens owed is a moving target and changes with each block as payInterest is called
  ///      This function can serve to give an indication of how many tokens can be liquidated
  ///      All this function does is call _liquidationMath with 2**256-1 as the amount
  /// @param _id The id of vault we want to target
  /// @param _token The address of token to calculate how many tokens to liquidate
  /// @return _tokensToLiquidate The amount of tokens liquidatable
  function tokensToLiquidate(uint96 _id, address _token) external view returns (uint256 _tokensToLiquidate);

  /// @notice Check a vault for over-collateralization
  /// @dev This function calls peekVaultBorrowingPower so no state change is done
  /// @param _id The id of vault we want to target
  /// @return _overCollateralized Returns true if vault over-collateralized; false if vault under-collaterlized
  function peekCheckVault(uint96 _id) external view returns (bool _overCollateralized);

  /// @notice Check a vault for over-collateralization
  /// @dev This function calls getVaultBorrowingPower to allow state changes to happen if an oracle need them
  /// @param _id The id of vault we want to target
  /// @return _overCollateralized Returns true if vault over-collateralized; false if vault under-collaterlized
  function checkVault(uint96 _id) external returns (bool _overCollateralized);

  /// @notice Returns the status of a range of vaults
  /// @dev Special view only function to help liquidators
  /// @param _start The id of the vault to start looping
  /// @param _stop The id of vault to stop looping
  /// @return _vaultSummaries An array of vault information
  function vaultSummaries(uint96 _start, uint96 _stop) external view returns (VaultSummary[] memory _vaultSummaries);

  /// @notice Returns the initial borrowing fee
  /// @param _amount The base amount
  /// @return _fee The fee calculated based on a base amount
  function getBorrowingFee(uint192 _amount) external view returns (uint192 _fee);

  /// @notice Returns the liquidation fee
  /// @param _tokensToLiquidate The collateral amount
  /// @param _assetAddress The collateral address to liquidate
  /// @return _fee The fee calculated based on amount
  function getLiquidationFee(uint192 _tokensToLiquidate, address _assetAddress) external view returns (uint192 _fee);

  /// @notice Returns the increase amount of the interest factor. Accrues interest to borrowers and distribute it to USDA holders
  /// @dev Implementation in payInterest
  /// @return _interest The increase amount of the interest factor
  function calculateInterest() external returns (uint256 _interest);

  /// @notice Creates a new vault and returns it's address
  /// @return _vaultAddress The address of the newly created vault
  function mintVault() external returns (address _vaultAddress);

  /// @notice Simulates the liquidation of an underwater vault
  /// @param _id The id of vault we want to target
  /// @param _assetAddress The address of the token the liquidator wishes to liquidate
  /// @param _tokensToLiquidate The number of tokens to liquidate
  /// @return _collateralLiquidated The number of collateral tokens the liquidator will receive
  /// @return _usdaPaid The amount of USDA the liquidator will have to pay
  function simulateLiquidateVault(
    uint96 _id,
    address _assetAddress,
    uint256 _tokensToLiquidate
  ) external view returns (uint256 _collateralLiquidated, uint256 _usdaPaid);

  /// @notice Liquidates an underwater vault
  /// @dev Pays interest before liquidation. Vaults may be liquidated up to the point where they are exactly solvent
  /// @param _id The id of vault we want to target
  /// @param _assetAddress The address of the token the liquidator wishes to liquidate
  /// @param _tokensToLiquidate The number of tokens to liquidate
  /// @return _toLiquidate The number of tokens that got liquidated
  function liquidateVault(
    uint96 _id,
    address _assetAddress,
    uint256 _tokensToLiquidate
  ) external returns (uint256 _toLiquidate);

  /// @notice Borrows USDA from a vault. Only the vault minter may borrow from their vault
  /// @param _id The id of vault we want to target
  /// @param _amount The amount of USDA to borrow
  function borrowUSDA(uint96 _id, uint192 _amount) external;

  /// @notice Borrows USDA from a vault and send the USDA to a specific address
  /// @param _id The id of vault we want to target
  /// @param _amount The amount of USDA to borrow
  /// @param _target The address to receive borrowed USDA
  function borrowUSDAto(uint96 _id, uint192 _amount, address _target) external;

  /// @notice Borrows sUSD directly from reserve, liability is still in USDA, and USDA must be repaid
  /// @param _id The id of vault we want to target
  /// @param _susdAmount The amount of sUSD to borrow
  /// @param _target The address to receive borrowed sUSD
  function borrowsUSDto(uint96 _id, uint192 _susdAmount, address _target) external;

  /// @notice Repays a vault's USDA loan. Anyone may repay
  /// @dev Pays interest
  /// @param _id The id of vault we want to target
  /// @param _amount The amount of USDA to repay
  function repayUSDA(uint96 _id, uint192 _amount) external;

  /// @notice Repays all of a vault's USDA. Anyone may repay a vault's liabilities
  /// @dev Pays interest
  /// @param _id The id of vault we want to target
  function repayAllUSDA(uint96 _id) external;

  /// @notice External function used by vaults to increase or decrease the `totalDeposited`.
  /// @dev Should only be called by a valid vault
  /// @param _vaultID The id of vault which is calling (used to verify)
  /// @param _amount The amount to modify
  /// @param _token The token address which should modify the total
  /// @param _increase Boolean that indicates if should increase or decrease (TRUE -> increase, FALSE -> decrease)
  function modifyTotalDeposited(uint96 _vaultID, uint256 _amount, address _token, bool _increase) external;

  /// @notice Pauses the functionality of the contract
  function pause() external;

  /// @notice Unpauses the functionality of the contract
  function unpause() external;

  /// @notice Emited when the owner registers a curve master
  /// @param _masterCurveAddress The address of the curve master
  function registerCurveMaster(address _masterCurveAddress) external;

  /// @notice Updates the protocol fee
  /// @param _newProtocolFee The new protocol fee in terms of 1e18=100%
  function changeProtocolFee(uint192 _newProtocolFee) external;

  /// @notice Register a new token to be used as collateral
  /// @param _tokenAddress The address of the token to register
  /// @param _ltv The ltv of the token, 1e18=100%
  /// @param _oracleAddress The address of oracle to fetch the price of the token
  /// @param _liquidationIncentive The liquidation penalty for the token, 1e18=100%
  /// @param _cap The maximum amount to be deposited
  function registerErc20(
    address _tokenAddress,
    uint256 _ltv,
    address _oracleAddress,
    uint256 _liquidationIncentive,
    uint256 _cap,
    uint256 _poolId
  ) external;

  /// @notice Registers the USDA contract
  /// @param _usdaAddress The address to register as USDA
  function registerUSDA(address _usdaAddress) external;

  /// @notice Updates an existing collateral with new collateral parameters
  /// @param _tokenAddress The address of the token to modify
  /// @param _ltv The new loan-to-value of the token, 1e18=100%
  /// @param _oracleAddress The address of oracle to modify for the price of the token
  /// @param _liquidationIncentive The new liquidation penalty for the token, 1e18=100%
  /// @param _cap The maximum amount to be deposited
  /// @param _poolId The convex pool id of a crv lp token
  function updateRegisteredErc20(
    address _tokenAddress,
    uint256 _ltv,
    address _oracleAddress,
    uint256 _liquidationIncentive,
    uint256 _cap,
    uint256 _poolId
  ) external;

  /// @notice Change the claimer contract, used to exchange a fee from curve lp rewards for AMPH tokens
  /// @param _newClaimerContract The new claimer contract
  function changeClaimerContract(IAMPHClaimer _newClaimerContract) external;

  /// @notice Change the initial borrowing fee
  /// @param _newBorrowingFee The new borrowing fee
  function changeInitialBorrowingFee(uint192 _newBorrowingFee) external;

  /// @notice Change the liquidation fee
  /// @param _newLiquidationFee The new liquidation fee
  function changeLiquidationFee(uint192 _newLiquidationFee) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

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

pragma solidity ^0.8.0;

import "../utils/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 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 {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        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 (last updated v4.8.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

// 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 "../extensions/draft-IERC20Permit.sol";
import "../../../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;

    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");
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import {IAccessControl} from '@openzeppelin/contracts/access/IAccessControl.sol';

// @title Roles contract
//   @notice Manages the roles for interactions with a contract
interface IRoles is IAccessControl {
  /*///////////////////////////////////////////////////////////////
                              ERRORS
    //////////////////////////////////////////////////////////////*/

  // @notice Thrown when the caller of the function is not an authorized role
  error Roles_Unauthorized(address _account, bytes32 _role);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(account),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * May emit a {RoleGranted} event.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

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

pragma solidity ^0.8.0;

import "../utils/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);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {ICurveMaster} from '@interfaces/periphery/ICurveMaster.sol';
import {ICurveSlave} from '@interfaces/utils/ICurveSlave.sol';
import {IVaultController} from '@interfaces/core/IVaultController.sol';
import {Ownable} from '@openzeppelin/contracts/access/Ownable.sol';

/// @notice Curve master keeps a record of CurveSlave contracts and links it with an address
/// @dev All numbers should be scaled to 1e18. for instance, number 5e17 represents 50%
contract CurveMaster is ICurveMaster, Ownable {
  /// @dev Mapping of token to address
  mapping(address => address) public curves;

  /// @dev The vault controller address
  address public vaultControllerAddress;

  /// @notice Returns the value of curve labled _tokenAddress at _xValue
  /// @param _tokenAddress The key to lookup the curve with in the mapping
  /// @param _xValue The x value to pass to the slave
  /// @return _value The y value of the curve
  function getValueAt(address _tokenAddress, int256 _xValue) external view override returns (int256 _value) {
    if (curves[_tokenAddress] == address(0)) revert CurveMaster_TokenNotEnabled();
    ICurveSlave _curve = ICurveSlave(curves[_tokenAddress]);
    _value = _curve.valueAt(_xValue);
    if (_value == 0) revert CurveMaster_ZeroResult();
  }

  /// @notice Set the VaultController addr in order to pay interest on curve setting
  /// @param _vaultMasterAddress The address of vault master
  function setVaultController(address _vaultMasterAddress) external override onlyOwner {
    address _oldCurveAddress = vaultControllerAddress;
    vaultControllerAddress = _vaultMasterAddress;

    emit VaultControllerSet(_oldCurveAddress, _vaultMasterAddress);
  }

  /// @notice Setting a new curve should pay interest
  /// @param _tokenAddress The address of the token
  /// @param _curveAddress The address of the curve for the contract
  function setCurve(address _tokenAddress, address _curveAddress) external override onlyOwner {
    if (vaultControllerAddress != address(0)) IVaultController(vaultControllerAddress).calculateInterest();
    address _oldCurve = curves[_tokenAddress];
    curves[_tokenAddress] = _curveAddress;

    emit CurveSet(_oldCurve, _tokenAddress, _curveAddress);
  }

  /// @notice Special function that does not calculate interest, used for deployment
  /// @param _tokenAddress The address of the token
  /// @param _curveAddress The address of the curve for the contract
  function forceSetCurve(address _tokenAddress, address _curveAddress) external override onlyOwner {
    address _oldCurve = curves[_tokenAddress];
    curves[_tokenAddress] = _curveAddress;

    emit CurveForceSet(_oldCurve, _tokenAddress, _curveAddress);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

/// @title OracleRelay Interface
/// @notice Interface for interacting with OracleRelay
interface IOracleRelay {
  /// @notice Emited when the underlyings are different in the anchored view
  error OracleRelay_DifferentUnderlyings();

  enum OracleType {
    Chainlink,
    Uniswap,
    Price
  }

  /// @notice returns the price with 18 decimals
  /// @return _currentValue the current price
  function currentValue() external returns (uint256 _currentValue);

  /// @notice returns the price with 18 decimals without any state changes
  /// @dev some oracles require a state change to get the exact current price.
  ///      This is updated when calling other state changing functions that query the price
  /// @return _price the current price
  function peekValue() external view returns (uint256 _price);

  /// @notice returns the type of the oracle
  /// @return _type the type (Chainlink/Uniswap/Price)
  function oracleType() external view returns (OracleType _type);

  /// @notice returns the underlying asset the oracle is pricing
  /// @return _underlying the address of the underlying asset
  function underlying() external view returns (address _underlying);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

interface IBooster {
  function owner() external view returns (address _owner);
  function setVoteDelegate(address _voteDelegate) external;
  function vote(uint256 _voteId, address _votingAddress, bool _support) external returns (bool _success);
  function voteGaugeWeight(address[] calldata _gauge, uint256[] calldata _weight) external returns (bool _success);
  function poolInfo(uint256 _pid)
    external
    view
    returns (address _lptoken, address _token, address _gauge, address _cprvRewards, address _stash, bool _shutdown);
  function earmarkRewards(uint256 _pid) external returns (bool _claimed);
  function earmarkFees() external returns (bool _claimed);
  function deposit(uint256 _pid, uint256 _amount, bool _stake) external returns (bool _success);
  function isShutdown() external view returns (bool _isShutdown);
  function shutdownSystem() external;
  function poolManager() external returns (address _poolManager);
  function addPool(address _lptoken, address _gauge, uint256 _stashVersion) external returns (bool _success);
  function poolLength() external returns (uint256 _poolLength);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import {IVirtualBalanceRewardPool} from '@interfaces/utils/IVirtualBalanceRewardPool.sol';

interface IBaseRewardPool {
  function stake(uint256 _amount) external returns (bool _staked);
  function stakeFor(address _for, uint256 _amount) external returns (bool _staked);
  function withdraw(uint256 _amount, bool _claim) external returns (bool _success);
  function withdrawAndUnwrap(uint256 _amount, bool _claim) external returns (bool _success);
  function getReward(address _account, bool _claimExtras) external returns (bool _success);
  function rewardToken() external view returns (IERC20 _rewardToken);
  function earned(address _ad) external view returns (uint256 _reward);
  function extraRewardsLength() external view returns (uint256 _extraRewardsLength);
  function extraRewards(uint256 _position) external view returns (IVirtualBalanceRewardPool _virtualReward);
  function queueNewRewards(uint256 _rewards) external returns (bool _success);
  function operator() external view returns (address _operator);
  function stakingToken() external view returns (address _stakingToken);
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.4 <0.9.0;

import {IVault} from '@interfaces/core/IVault.sol';
import {IVaultController} from '@interfaces/core/IVaultController.sol';
import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';

// @notice Deployer of Vaults
// @dev    This contract is needed to reduce the size of the VaultController contract
interface IVaultDeployer {
  /*///////////////////////////////////////////////////////////////
                              ERRORS
  //////////////////////////////////////////////////////////////*/

  // @notice Thrown when someone other than the vault controller tries to call the method
  error VaultDeployer_OnlyVaultController();

  /*///////////////////////////////////////////////////////////////
                              VARIABLES
  //////////////////////////////////////////////////////////////*/

  /// @notice The address of the CVX token
  /// @return _cvx The address of the CVX token
  function CVX() external view returns (IERC20 _cvx);

  /// @notice The address of the CRV token
  /// @return _crv The address of the CRV token
  function CRV() external view returns (IERC20 _crv);

  /*///////////////////////////////////////////////////////////////
                              LOGIC
  //////////////////////////////////////////////////////////////*/

  /// @notice Deploys a new Vault
  /// @param _id The id of the vault
  /// @param _minter The address of the minter of the vault
  /// @return _vault The vault that was created
  function deployVault(uint96 _id, address _minter) external returns (IVault _vault);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import {IVaultController} from '@interfaces/core/IVaultController.sol';

/// @title AMPHClaimer Interface
interface IAMPHClaimer {
  /*///////////////////////////////////////////////////////////////
                            EVENTS
    //////////////////////////////////////////////////////////////*/

  // @notice Emited when a vault claims AMPH
  // @param _vaultClaimer The address of the vault that claimed
  // @param _cvxTotalRewards The amount of CVX sent in exchange of AMPH
  // @param _crvTotalRewards The amount of CRV sent in exchange of AMPH
  // @param _amphAmount The amount of AMPH received

  event ClaimedAmph(
    address indexed _vaultClaimer, uint256 _cvxTotalRewards, uint256 _crvTotalRewards, uint256 _amphAmount
  );

  // @notice Emited when governance changes the vault controller
  // @param _newVaultController The address of the new vault controller

  event ChangedVaultController(address indexed _newVaultController);

  // @notice Emited when governance recovers a token from the contract
  // @param _token the token recovered
  // @param _receiver the receiver of the tokens
  // @param _amount the amount recovered

  event RecoveredDust(address indexed _token, address _receiver, uint256 _amount);

  // @notice Emited when governance changes the CVX reward fee
  // @param _newCvxReward the new fee

  event ChangedCvxRewardFee(uint256 _newCvxReward);

  // @notice Emited when governance changes the CRV reward fee
  // @param _newCrvReward the new fee

  event ChangedCrvRewardFee(uint256 _newCrvReward);

  /*///////////////////////////////////////////////////////////////
                            VARIABLES
    //////////////////////////////////////////////////////////////*/

  /// @notice The address of the CVX token
  function CVX() external view returns (IERC20 _cvx);

  /// @notice The address of the CRV token
  function CRV() external view returns (IERC20 _crv);

  /// @notice The address of the AMPH token
  function AMPH() external view returns (IERC20 _amph);

  /// @notice The base supply of AMPH per cliff, denominated in 1e6
  function BASE_SUPPLY_PER_CLIFF() external view returns (uint256 _baseSupplyPerCliff);

  /// @notice The total amount of AMPH minted for rewards in CRV, denominated in 1e6
  function distributedAmph() external view returns (uint256 _distributedAmph);

  /// @notice The total number of cliffs (for both tokens)
  function TOTAL_CLIFFS() external view returns (uint256 _totalCliffs);

  /// @notice Percentage of rewards taken in CVX (1e18 == 100%)
  function cvxRewardFee() external view returns (uint256 _cvxRewardFee);

  /// @notice Percentage of rewards taken in CRV (1e18 == 100%)
  function crvRewardFee() external view returns (uint256 _crvRewardFee);

  /// @notice The vault controller
  function vaultController() external view returns (IVaultController _vaultController);

  /*///////////////////////////////////////////////////////////////
                            LOGIC
    //////////////////////////////////////////////////////////////*/

  /// @notice Claims an amount of AMPH given a CVX and CRV quantity
  /// @param _vaultId The vault id that is claiming
  /// @param _cvxTotalRewards The max CVX amount to exchange from the sender
  /// @param _crvTotalRewards The max CVR amount to exchange from the sender
  /// @param _beneficiary The receiver of the AMPH rewards
  /// @return _cvxAmountToSend The amount of CVX that the treasury got
  /// @return _crvAmountToSend The amount of CRV that the treasury got
  /// @return _claimedAmph The amount of AMPH received by the beneficiary
  function claimAmph(
    uint96 _vaultId,
    uint256 _cvxTotalRewards,
    uint256 _crvTotalRewards,
    address _beneficiary
  ) external returns (uint256 _cvxAmountToSend, uint256 _crvAmountToSend, uint256 _claimedAmph);

  /// @notice Returns the claimable amount of AMPH given a CVX and CRV quantity
  /// @param _sender The address of the account claiming
  /// @param _vaultId The vault id that is claiming
  /// @param _cvxTotalRewards The max CVX amount to exchange from the sender
  /// @param _crvTotalRewards The max CVR amount to exchange from the sender
  /// @return _cvxAmountToSend The amount of CVX the user will have to send
  /// @return _crvAmountToSend The amount of CRV the user will have to send
  /// @return _claimableAmph The amount of AMPH that would be received by the beneficiary
  function claimable(
    address _sender,
    uint96 _vaultId,
    uint256 _cvxTotalRewards,
    uint256 _crvTotalRewards
  ) external view returns (uint256 _cvxAmountToSend, uint256 _crvAmountToSend, uint256 _claimableAmph);

  /// @notice Used by governance to change the vault controller
  /// @param _newVaultController The new vault controller
  function changeVaultController(address _newVaultController) external;

  /// @notice Used by governance to recover tokens from the contract
  /// @param _token The token to recover
  /// @param _amount The amount to recover
  function recoverDust(address _token, uint256 _amount) external;

  /// @notice Used by governance to change the fee taken from the CVX reward
  /// @param _newFee The new reward fee
  function changeCvxRewardFee(uint256 _newFee) external;

  /// @notice Used by governance to change the fee taken from the CRV reward
  /// @param _newFee The new reward fee
  function changeCrvRewardFee(uint256 _newFee) external;
}

// 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);
}

// 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);
}

// 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);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

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

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

/// @title CurveMaster Interface
/// @notice Interface for interacting with CurveMaster
interface ICurveMaster {
  /*///////////////////////////////////////////////////////////////
                            EVENTS
    //////////////////////////////////////////////////////////////*/

  // @notice Emited when the owner changes the vault controller address
  // @param _oldVaultControllerAddress The old address of the vault controller
  // @param _newVaultControllerAddress The new address of the vault controller
  event VaultControllerSet(address _oldVaultControllerAddress, address _newVaultControllerAddress);

  // @notice Emited when the owner changes the curve address
  // @param _oldCurveAddress The old address of the curve
  // @param _token The token to set
  // @param _newCurveAddress The new address of the curve
  event CurveSet(address _oldCurveAddress, address _token, address _newCurveAddress);

  // @notice Emited when the owner changes the curve address skipping the checks
  // @param _oldCurveAddress The old address of the curve
  // @param _token The token to set
  // @param _newCurveAddress The new address of the curve
  event CurveForceSet(address _oldCurveAddress, address _token, address _newCurveAddress);

  /*///////////////////////////////////////////////////////////////
                            ERRORS
    //////////////////////////////////////////////////////////////*/

  /// @notice Thrown when the token is not enabled
  error CurveMaster_TokenNotEnabled();

  /// @notice Thrown when result is zero
  error CurveMaster_ZeroResult();

  /*///////////////////////////////////////////////////////////////
                            VARIABLES
    //////////////////////////////////////////////////////////////*/

  /// @notice The vault controller address
  function vaultControllerAddress() external view returns (address _vaultController);

  /// @notice Returns the value of curve labled _tokenAddress at _xValue
  /// @param _tokenAddress The key to lookup the curve with in the mapping
  /// @param _xValue The x value to pass to the slave
  /// @return _value The y value of the curve
  function getValueAt(address _tokenAddress, int256 _xValue) external view returns (int256 _value);

  /// @notice Mapping of token to address
  function curves(address _tokenAddress) external view returns (address _curve);

  /*///////////////////////////////////////////////////////////////
                            LOGIC
    //////////////////////////////////////////////////////////////*/

  /// @notice Set the VaultController addr in order to pay interest on curve setting
  /// @param _vaultMasterAddress The address of vault master
  function setVaultController(address _vaultMasterAddress) external;

  /// @notice Setting a new curve should pay interest
  /// @param _tokenAddress The address of the token
  /// @param _curveAddress The address of the curve for the contract
  function setCurve(address _tokenAddress, address _curveAddress) external;

  /// @notice Special function that does not calculate interest, used for deployment
  /// @param _tokenAddress The address of the token
  /// @param _curveAddress The address of the curve for the contract
  function forceSetCurve(address _tokenAddress, address _curveAddress) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

/// @title CurveSlave Interface
/// @notice Interface for interacting with CurveSlaves
interface ICurveSlave {
  function valueAt(int256 _xValue) external view returns (int256 _value);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';

interface IVirtualBalanceRewardPool {
  function rewardToken() external view returns (IERC20 _rewardToken);
  function earned(address _ad) external view returns (uint256 _reward);
  function getReward() external;
  function queueNewRewards(uint256 _rewards) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import {IVaultController} from '@interfaces/core/IVaultController.sol';
import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import {IBaseRewardPool} from '@interfaces/utils/IBaseRewardPool.sol';
import {ICVX} from '@interfaces/utils/ICVX.sol';

/// @title Vault Interface
interface IVault {
  /*///////////////////////////////////////////////////////////////
                              EVENTS
    //////////////////////////////////////////////////////////////*/

  // @notice Emited after depositing a token
  // @param _token The address of the token to deposit
  // @param _amount The amount to deposit
  event Deposit(address _token, uint256 _amount);

  // @notice Emited after withdrawing a token
  // @param _token The address of the token to withdraw
  // @param _amount The amount to withdraw
  event Withdraw(address _token, uint256 _amount);

  // @notice Emited when claiming a reward
  // @param _token The address of the token that was claimed
  // @param _amount The amount that was claimed
  event ClaimedReward(address _token, uint256 _amount);

  // @notice Emited when migrating a crvLP token on convex manually
  // @param _token The address of the token to stake
  // @param _amount The amount to stake
  event Migrated(address _token, uint256 _amount);

  /*///////////////////////////////////////////////////////////////
                              ERRORS
    //////////////////////////////////////////////////////////////*/

  // @notice Thrown when trying to deposit a token that is not registered
  error Vault_TokenNotRegistered();

  // @notice Thrown when trying to deposit 0 amount
  error Vault_AmountZero();

  /// @notice Thrown when trying to withdraw more than it's possible
  error Vault_OverWithdrawal();

  /// @notice Thrown when trying to repay more than is needed
  error Vault_RepayTooMuch();

  /// @notice Thrown when _msgSender is not the minter of the vault
  error Vault_NotMinter();

  /// @notice Thrown when _msgSender is not the controller of the vault
  error Vault_NotVaultController();

  /// @notice Thrown when depositing and staking on convex fails
  error Vault_DepositAndStakeOnConvexFailed();

  /// @notice Thrown when trying to withdraw and unstake from convex
  error Vault_WithdrawAndUnstakeOnConvexFailed();

  /// @notice Thrown when trying to claim rewards with a non staked token
  error Vault_TokenNotStaked();

  /// @notice Thrown when trying to stake with 0 balance
  error Vault_TokenZeroBalance();

  /// @notice Thrown when a token is already migrated and trying to migrate again
  error Vault_TokenAlreadyMigrated();

  /// @notice Thrown when the base reward contract was not approved by governance
  error Vault_InvalidBaseRewardContract();

  /*///////////////////////////////////////////////////////////////
                              STRUCTS
    //////////////////////////////////////////////////////////////*/
  /// @title VaultInfo struct
  /// @notice this struct is used to store the vault metadata
  /// this should reduce the cost of minting by ~15,000
  /// by limiting us to max 2**96-1 vaults
  struct VaultInfo {
    uint96 id;
    address minter;
  }

  struct Reward {
    IERC20 token;
    uint256 amount;
  }

  /*///////////////////////////////////////////////////////////////
                            VARIABLES
    //////////////////////////////////////////////////////////////*/

  // @notice Returns the struct containing the vault information
  // @return _id Id of the vault
  // @return _minter Minter of the vault
  function vaultInfo() external view returns (uint96 _id, address _minter);

  // @notice Returns the vault's balance of a token
  // @param _token The address of the token
  // @return _balance The token's balance of the vault
  function balances(address _token) external view returns (uint256 _balance);

  // @notice Returns the pool that the token is staked on
  // @dev Returns 0 if not staked
  // @param _token The address of the token
  // @return _poolId The poolId that the token is staked on
  function currentPoolIds(address _token) external view returns (uint256 _poolId);

  // @notice Returns the current vault base liability
  // @return _liability The current vault base liability of the vault
  function baseLiability() external view returns (uint256 _liability);

  // @notice Returns the minter's address of the vault
  // @return _minter The minter's address
  function minter() external view returns (address _minter);

  // @notice Returns the id of the vault
  // @return _id The id of the vault
  function id() external view returns (uint96 _id);

  // @notice Returns the vault controller
  // @return _vaultController The vault controller
  function CONTROLLER() external view returns (IVaultController _vaultController);

  /// @notice Returns the CRV token address
  /// @return _crv The CRV token address
  function CRV() external view returns (IERC20 _crv);

  /// @notice Returns the CVX token address
  /// @return _cvx The CVX token address
  function CVX() external view returns (ICVX _cvx);

  /*///////////////////////////////////////////////////////////////
                              LOGIC
    //////////////////////////////////////////////////////////////*/

  // @notice Used to deposit a token to the vault
  // @param _token The address of the token to deposit
  // @param _amount The amount of the token to deposit
  function depositERC20(address _token, uint256 _amount) external;

  // @notice Used to withdraw a token from the vault. This can only be called by the minter
  // @dev The withdraw will be denied if ones vault would become insolvent
  // @param _token The address of the token
  // @param _amount The amount of the token to withdraw
  function withdrawERC20(address _token, uint256 _amount) external;

  /// @notice Let's the user manually stake their crvLP
  /// @dev    This can be called if the convex pool didn't exist when the token was registered
  ///         and was later updated
  /// @param _tokenAddress The address of erc20 crvLP token
  function migrateCrvLPCollateral(address _tokenAddress) external;

  /// @notice Returns true when user can manually stake their token balance
  /// @param _token The address of the token to check
  /// @return _canMigrate Returns true if the token can be staked manually
  function canMigrate(address _token) external view returns (bool _canMigrate);

  /// @notice Claims available rewards from multiple tokens
  /// @dev    Transfers a percentage of the crv and cvx rewards to claim AMPH tokens
  /// @param _tokenAddresses The addresses of the erc20 tokens
  /// @param _claimExtraRewards True if it should claim the extra rewards from convex
  function claimRewards(address[] memory _tokenAddresses, bool _claimExtraRewards) external;

  /// @notice Returns an array of tokens and amounts available for claim
  /// @param _tokenAddress The address of erc20 token
  /// @param _claimExtraRewards True if it should claim the extra rewards from convex
  /// @return _rewards The array of tokens and amount available for claim
  function claimableRewards(
    address _tokenAddress,
    bool _claimExtraRewards
  ) external view returns (Reward[] memory _rewards);

  /// @notice Used to claim rewards from past baseRewardContract
  /// @param _baseRewardContract The base reward contract to claim from
  /// @param _claimMainReward True to claim the base rewards also (CRV and CVX)
  /// @param _extraIndexesToClaim Indexes to claim the extra rewards
  function claimPreviousRewards(
    IBaseRewardPool _baseRewardContract,
    bool _claimMainReward,
    uint256[] memory _extraIndexesToClaim
  ) external;

  /// @notice Function used by the VaultController to transfer tokens
  /// @param _token The address of the token to transfer
  /// @param _to The address of the person to send the coins to
  /// @param _amount The amount of coins to move
  function controllerTransfer(address _token, address _to, uint256 _amount) external;

  /// @notice function used by the VaultController to withdraw from convex
  /// callable by the VaultController only
  /// @param _tokenAddress The token address to withdraw from the rewards contract
  /// @param _amount amount of coins to withdraw
  function controllerWithdrawAndUnwrap(address _tokenAddress, uint256 _amount) external;

  // @notice Modifies a vault's liability. Can only be called by VaultController
  // @param _increase True to increase liability, false to decrease
  // @param _baseAmount The change amount in base liability
  // @return _liability The new base liability
  function modifyLiability(bool _increase, uint256 _baseAmount) external returns (uint256 _liability);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';

// @title The interface for the CVX token
interface ICVX is IERC20 {
  function totalCliffs() external view returns (uint256 _totalCliffs);
  function reductionPerCliff() external view returns (uint256 _reduction);
  function maxSupply() external view returns (uint256 _maxSupply);
  function operator() external view returns (address _operator);
  function updateOperator() external;
  function vecrvProxy() external view returns (address _vecrvProxy);
}

{
  "remappings": [
    "ds-test/=node_modules/ds-test/src/",
    "forge-std/=node_modules/forge-std/src/",
    "isolmate/=node_modules/@defi-wonderland/isolmate/src/",
    "uni-v2-core/=node_modules/@uniswap/v2-core/contracts/",
    "uni-v2-periphery/=node_modules/@uniswap/v2-periphery/contracts/",
    "uni-v3-core/=node_modules/@uniswap/v3-core/contracts/",
    "uni-v3-periphery/=node_modules/@uniswap/v3-periphery/contracts/",
    "solidity-utils/=node_modules/@defi-wonderland/solidity-utils/solidity/",
    "solady/=node_modules/solady/src/",
    "@chainlink/=node_modules/@chainlink/contracts/src/v0.8/",
    "@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/",
    "@uniswap/v2-core/=node_modules/@uniswap/v2-core/",
    "@uniswap/v2-periphery/=node_modules/@uniswap/v2-periphery/",
    "@uniswap/v3-core/=node_modules/@uniswap/v3-core/",
    "@uniswap/v3-periphery/=node_modules/@uniswap/v3-periphery/",
    "@contracts/=solidity/contracts/",
    "@interfaces/=solidity/interfaces/",
    "@test/=solidity/test/",
    "@scripts/=solidity/scripts/",
    "@defi-wonderland/=node_modules/@defi-wonderland/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "base64-sol/=node_modules/base64-sol/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

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000000000000000000000000b2f30a7c980f052f02563fb518dcc39e6bf38175

-----Decoded View---------------
Arg [0] : _sUSDAddr (address): 0xb2F30A7C980f052f02563fb518dcc39e6bf38175

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b2f30a7c980f052f02563fb518dcc39e6bf38175