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// SPDX-License-Identifier: BUSL-1.1

pragma solidity ^0.8.17;

import "../interfaces/IEUSD.sol";
import "./base/LybraPeUSDVaultBase.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

interface IRETH {
    function getExchangeRate() external view returns (uint256);
}

interface IRocketDepositPool {
    function deposit() external payable;
}
interface IRocketStorageInterface {
    function getAddress(bytes32 _key) external view returns (address);
}

contract LybraRETHVault is LybraPeUSDVaultBase, ReentrancyGuard {
    IRocketStorageInterface immutable rocketStorage;

    // _rocketStorageAddress = 0x1d8f8f00cfa6758d7bE78336684788Fb0ee0Fa46
    // _rETH = 0xae78736Cd615f374D3085123A210448E74Fc6393
    constructor(address _rocketStorageAddress, address _rETH, address _oracle, address _config)
        LybraPeUSDVaultBase(_rETH, _oracle, _config) {
        rocketStorage = IRocketStorageInterface(_rocketStorageAddress);
    }

    function depositEtherToMint(uint256 mintAmount) nonReentrant external payable override {
        require(msg.value >= 1 ether, "DNL");
        uint256 preBalance = collateralAsset.balanceOf(address(this));
        IRocketDepositPool(rocketStorage.getAddress(keccak256(abi.encodePacked("contract.address", "rocketDepositPool")))).deposit{value: msg.value}();
        uint256 balance = collateralAsset.balanceOf(address(this));
        depositedAsset[msg.sender] += balance - preBalance;

        if (mintAmount > 0) {
            _mintPeUSD(msg.sender, msg.sender, mintAmount, getAssetPrice());
        }

        emit DepositEther(msg.sender, address(collateralAsset), msg.value,balance - preBalance, block.timestamp);
    }

    function getAssetPrice() public override returns (uint256) {
        return (_etherPrice() * IRETH(address(collateralAsset)).getExchangeRate()) / 1e18;
    }

    function getAsset2EtherExchangeRate() external view override returns (uint256) {
        return IRETH(address(collateralAsset)).getExchangeRate();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

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

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

// 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 v4.9.0) (token/ERC20/extensions/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 v4.9.0) (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 (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/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;

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

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

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

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

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

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

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/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 (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: BUSL-1.1

pragma solidity ^0.8.17;

interface Iconfigurator {
    function mintVault(address pool) external view returns(bool);
    function mintVaultMaxSupply(address pool) external view returns(uint256);
    function vaultMintPaused(address pool) external view returns(bool);
    function vaultBurnPaused(address pool) external view returns(bool);
    function tokenMiner(address pool) external view returns(bool);
    function getSafeCollateralRatio(address pool) external view returns(uint256);
    function getBadCollateralRatio(address pool) external view returns(uint256);
    function getVaultWeight(address pool) external view returns (uint256);
    function vaultMintFeeApy(address pool) external view returns(uint256);
    function vaultKeeperRatio(address pool) external view returns(uint256);
    function redemptionFee() external view returns(uint256);
    function getEUSDAddress() external view returns(address);
    function peUSD() external view returns(address);
    function eUSDMiningIncentives() external view returns(address);
    function getProtocolRewardsPool() external view returns(address);
    function flashloanFee() external view returns(uint256);
    function getEUSDMaxLocked() external view returns (uint256);
    function stableToken() external view returns (address);
    function isRedemptionProvider(address user) external view returns (bool);
    function becomeRedemptionProvider(bool _bool) external;
    function refreshMintReward(address user) external;
    function distributeRewards() external;
    function hasRole(bytes32 role, address account) external view returns (bool);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;

interface IEUSD {
    function totalSupply() external view returns (uint256);

    function getTotalShares() external view returns (uint256);

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

    function sharesOf(address _account) external view returns (uint256);

    function allowance(
        address owner,
        address spender
    ) external view returns (uint256);

    function approve(address _spender, uint256 _amount) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);

    function transferShares(
        address _recipient,
        uint256 _sharesAmount
    ) external returns (uint256);

    function getSharesByMintedEUSD(
        uint256 _EUSDAmount
    ) external view returns (uint256);

    function getMintedEUSDByShares(
        uint256 _sharesAmount
    ) external view returns (uint256);

    function mint(
        address _recipient,
        uint256 _mintAmount
    ) external returns (uint256 newTotalShares);

    function burnShares(
        address _account,
        uint256 burnAmount
    ) external returns (uint256 newTotalShares);

    function burn(
        address _account,
        uint256 burnAmount
    ) external returns (uint256 newTotalShares);

    function transfer(address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;

interface IPeUSD {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
    function convertToPeUSD(address user, uint256 eusdAmount) external;
    function mint(
        address to,
        uint256 amount
    ) external returns (bool);
    function burn(
        address account,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity ^0.8.17;

import "../../interfaces/Iconfigurator.sol";
import "../../interfaces/IPeUSD.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IPriceFeed {
    function fetchPrice() external returns (uint256);
}

abstract contract LybraPeUSDVaultBase {
    using SafeERC20 for IERC20;
    IPeUSD public immutable PeUSD;
    IERC20 public immutable collateralAsset;
    Iconfigurator public immutable configurator;
    uint256 poolTotalCirculation;
    IPriceFeed immutable etherOracle;

    mapping(address => uint256) public depositedAsset;
    mapping(address => uint256) borrowed;
    mapping(address => uint256) feeStored;
    mapping(address => uint256) feeUpdatedAt;

    event DepositEther(address indexed onBehalfOf, address asset, uint256 etherAmount, uint256 assetAmount, uint256 timestamp);

    event DepositAsset(address indexed onBehalfOf, address asset, uint256 amount, uint256 timestamp);
    event WithdrawAsset(address indexed sponsor, address asset, address indexed onBehalfOf, uint256 amount, uint256 timestamp);
    event Mint(address indexed sponsor, address indexed onBehalfOf, uint256 amount, uint256 timestamp);
    event Burn(address indexed sponsor, address indexed onBehalfOf, uint256 amount, uint256 timestamp);
    event LiquidationRecord(address indexed provider, address indexed keeper, address indexed onBehalfOf, uint256 eusdamount, uint256 LiquidateAssetAmount, uint256 keeperReward, bool superLiquidation, uint256 timestamp);

    event RigidRedemption(address indexed caller, address indexed provider, uint256 peusdAmount, uint256 assetAmount, uint256 timestamp);
    event FeeDistribution(address indexed feeAddress, uint256 feeAmount, uint256 timestamp);

    constructor(address _collateral, address _etherOracle, address _configurator) {
        collateralAsset = IERC20(_collateral);
        configurator = Iconfigurator(_configurator);
        PeUSD = IPeUSD(configurator.peUSD());
        etherOracle = IPriceFeed(_etherOracle);
    }

    function totalDepositedAsset() public view virtual returns (uint256) {
        return collateralAsset.balanceOf(address(this));
    }

    function depositEtherToMint(uint256 mintAmount) external payable virtual;

    /**
     * @notice Deposit staked ETH, update the interest distribution, can mint peUSD directly
     * Emits a `DepositAsset` event.
     *
     * Requirements:
     * - `assetAmount` Must be higher than 0.
     * - `mintAmount` Send 0 if doesn't mint peUSD
     */
    function depositAssetToMint(uint256 assetAmount, uint256 mintAmount) external virtual {
        require(assetAmount >= 1 ether, "Deposit should not be less than 1 collateral asset.");
        collateralAsset.safeTransferFrom(msg.sender, address(this), assetAmount);

        depositedAsset[msg.sender] += assetAmount;
        if (mintAmount > 0) {
            uint256 assetPrice = getAssetPrice();
            _mintPeUSD(msg.sender, msg.sender, mintAmount, assetPrice);
        }
        emit DepositAsset(msg.sender, address(collateralAsset), assetAmount, block.timestamp);
    }

    /**
     * @notice Withdraw collateral assets to an address
     * Emits a `WithdrawAsset` event.
     *
     * Requirements:
     * - `onBehalfOf` cannot be the zero address.
     * - `amount` Must be higher than 0.
     *
     * @dev Withdraw collateral. Check user’s collateral ratio after withdrawal, should be higher than `safeCollateralRatio`
     */
    function withdraw(address onBehalfOf, uint256 amount) external virtual {
        require(onBehalfOf != address(0), "TZA");
        require(amount != 0, "ZA");
        _withdraw(msg.sender, onBehalfOf, amount);
    }

    /**
     * @notice The mint amount number of peUSD is minted to the address
     * Emits a `Mint` event.
     *
     * Requirements:
     * - `onBehalfOf` cannot be the zero address.
     */
    function mint(address onBehalfOf, uint256 amount) external virtual {
        require(onBehalfOf != address(0), "TZA");
        require(amount != 0, "ZA");
        _mintPeUSD(msg.sender, onBehalfOf, amount, getAssetPrice());
    }

    /**
     * @notice Burn the amount of peUSD and payback the amount of minted peUSD
     * Emits a `Burn` event.
     * Requirements:
     * - `onBehalfOf` cannot be the zero address.
     * - `amount` Must be higher than 0.
     * @dev Calling the internal`_repay`function.
     */
    function burn(address onBehalfOf, uint256 amount) external virtual {
        require(onBehalfOf != address(0), "TZA");
        require(amount != 0, "ZA");
        _repay(msg.sender, onBehalfOf, amount);
    }

    /**
     * @notice Keeper liquidates borrowers whose collateral ratio is below badCollateralRatio, using peUSD provided by Liquidation Provider.
     *
     * Requirements:
     * - onBehalfOf Collateral Ratio should be below badCollateralRatio
     * - assetAmount should be less than 50% of collateral
     * - provider should authorize Lybra to utilize peUSD
     * @dev After liquidation, borrower's debt is reduced by assetAmount * assetPrice, providers and keepers can receive up to an additional 10% liquidation reward.
     */
    function liquidation(address provider, address onBehalfOf, uint256 assetAmount) external virtual {
        uint256 assetPrice = getAssetPrice();
        uint256 onBehalfOfCollateralRatio = (depositedAsset[onBehalfOf] * assetPrice * 100) / getBorrowedOf(onBehalfOf);
        require(onBehalfOfCollateralRatio < configurator.getBadCollateralRatio(address(this)), "Borrowers collateral ratio should below badCollateralRatio");

        require(assetAmount * 2 <= depositedAsset[onBehalfOf], "a max of 50% collateral can be liquidated");
        require(PeUSD.allowance(provider, address(this)) != 0 || msg.sender == provider, "provider should authorize to provide liquidation peUSD");
        uint256 peusdAmount = (assetAmount * assetPrice) / 1e18;

        _repay(provider, onBehalfOf, peusdAmount);
        uint256 reducedAsset = assetAmount;
        if(onBehalfOfCollateralRatio > 1e20 && onBehalfOfCollateralRatio < 11e19) {
            reducedAsset = assetAmount * onBehalfOfCollateralRatio / 1e20;
        }
        if(onBehalfOfCollateralRatio >= 11e19) {
            reducedAsset = assetAmount * 11 / 10;
        }
        depositedAsset[onBehalfOf] -= reducedAsset;
        uint256 reward2keeper;
        uint256 keeperRatio = configurator.vaultKeeperRatio(address(this));
        if (msg.sender != provider && onBehalfOfCollateralRatio >= 1e20 + keeperRatio * 1e18) {
            reward2keeper = assetAmount * keeperRatio / 100;
            collateralAsset.safeTransfer(msg.sender, reward2keeper);
        }
        collateralAsset.safeTransfer(provider, reducedAsset - reward2keeper);
        emit LiquidationRecord(provider, msg.sender, onBehalfOf, peusdAmount, reducedAsset, reward2keeper, false, block.timestamp);
    }

    /**
     * @notice Choose a Redemption Provider, Rigid Redeem `peusdAmount` of peUSD and get 1:1 value of collateral
     * Emits a `RigidRedemption` event.
     *
     * *Requirements:
     * - `provider` must be a Redemption Provider
     * - `provider`debt must equal to or above`peusdAmount`
     * @dev Service Fee for rigidRedemption `redemptionFee` is set to 0.5% by default, can be revised by DAO.
     */
    function rigidRedemption(address provider, uint256 peusdAmount, uint256 minReceiveAmount) external virtual {
        require(provider != msg.sender, "CBS");
        require(configurator.isRedemptionProvider(provider), "provider is not a RedemptionProvider");
        require(borrowed[provider] >= peusdAmount, "peusdAmount cannot surpass providers debt");
        uint256 assetPrice = getAssetPrice();
        uint256 providerCollateralRatio = (depositedAsset[provider] * assetPrice * 100) / getBorrowedOf(provider);
        require(providerCollateralRatio >= 100 * 1e18, "The provider's collateral ratio should be not less than 100%.");
        _repay(msg.sender, provider, peusdAmount);
        uint256 collateralAmount = peusdAmount * 1e18 * (10_000 - configurator.redemptionFee()) / assetPrice / 10_000;
        require(collateralAmount >= minReceiveAmount, "EL");
        depositedAsset[provider] -= collateralAmount;
        collateralAsset.safeTransfer(msg.sender, collateralAmount);
        emit RigidRedemption(msg.sender, provider, peusdAmount, collateralAmount, block.timestamp);
    }

    /**
     * @dev Refresh LBR reward before adding providers debt. Refresh Lybra generated service fee before adding totalSupply. Check providers collateralRatio cannot below `safeCollateralRatio`after minting.
     */
    function _mintPeUSD(address _provider, address _onBehalfOf, uint256 _mintAmount, uint256 _assetPrice) internal virtual {
        require(poolTotalCirculation + _mintAmount <= configurator.mintVaultMaxSupply(address(this)), "ESL");
        _updateFee(_provider);

        configurator.refreshMintReward(_provider);

        borrowed[_provider] += _mintAmount;

        PeUSD.mint(_onBehalfOf, _mintAmount);
        poolTotalCirculation += _mintAmount;
        _checkHealth(_provider, _assetPrice);
        emit Mint(_provider, _onBehalfOf, _mintAmount, block.timestamp);
    }

    /**
     * @notice Burn _provideramount peUSD to payback minted peUSD for _onBehalfOf.
     *
     * @dev Refresh LBR reward before reducing providers debt. Refresh Lybra generated service fee before reducing totalPeUSDCirculation.
     */
    function _repay(address _provider, address _onBehalfOf, uint256 _amount) internal virtual {
        configurator.refreshMintReward(_onBehalfOf);
        _updateFee(_onBehalfOf);
        uint256 totalFee = feeStored[_onBehalfOf];
        uint256 amount = borrowed[_onBehalfOf] + totalFee >= _amount ? _amount : borrowed[_onBehalfOf] + totalFee;
        if(amount > totalFee) {
            feeStored[_onBehalfOf] = 0;
            PeUSD.transferFrom(_provider, address(configurator), totalFee);
            PeUSD.burn(_provider, amount - totalFee);
            borrowed[_onBehalfOf] -= amount - totalFee;
            poolTotalCirculation -= amount - totalFee;
        } else {
            feeStored[_onBehalfOf] = totalFee - amount;
            PeUSD.transferFrom(_provider, address(configurator), amount);
        }
        try configurator.distributeRewards() {} catch {}
        emit Burn(_provider, _onBehalfOf, amount, block.timestamp);
    }

    function _withdraw(address _provider, address _onBehalfOf, uint256 _amount) internal virtual {
        require(depositedAsset[_provider] >= _amount, "Withdraw amount exceeds deposited amount.");
        depositedAsset[_provider] -= _amount;
        collateralAsset.safeTransfer(_onBehalfOf, _amount);
        if (getBorrowedOf(_provider) > 0) {
            _checkHealth(_provider, getAssetPrice());
        }
        emit WithdrawAsset(_provider, address(collateralAsset), _onBehalfOf, _amount, block.timestamp);
    }

    /**
     * @dev Get USD value of current collateral asset and minted peUSD through price oracle / Collateral asset USD value must higher than safe Collateral Ratio.
     */
    function _checkHealth(address user, uint256 price) internal view {
        if (((depositedAsset[user] * price * 100) / getBorrowedOf(user)) < configurator.getSafeCollateralRatio(address(this))) 
            revert("collateralRatio is Below safeCollateralRatio");
    }

    function _updateFee(address user) internal {
        if (block.timestamp > feeUpdatedAt[user]) {
            feeStored[user] += _newFee(user);
            feeUpdatedAt[user] = block.timestamp;
        }
    }

    function _newFee(address user) internal view returns (uint256) {
        return (borrowed[user] * configurator.vaultMintFeeApy(address(this)) * (block.timestamp - feeUpdatedAt[user])) / (86_400 * 365) / 10_000;
    }

    /**
     * @dev Return USD value of current ETH through Liquity PriceFeed Contract.
     */
    function _etherPrice() internal returns (uint256) {
        return etherOracle.fetchPrice();
    }

    /**
     * @dev Returns the current borrowing amount for the user, including borrowed shares and accumulated fees.
     * @param user The address of the user.
     * @return The total borrowing amount for the user.
     */
    function getBorrowedOf(address user) public view returns (uint256) {
        return borrowed[user] + feeStored[user] + _newFee(user);
    }

    function getPoolTotalCirculation() external view returns (uint256) {
        return poolTotalCirculation;
    }

    function getAsset() external view returns (address) {
        return address(collateralAsset);
    }

    function getVaultType() external pure returns (uint8) {
        return 1;
    }

    function getAssetPrice() public virtual returns (uint256);
    function getAsset2EtherExchangeRate() external view virtual returns (uint256);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_rocketStorageAddress","type":"address"},{"internalType":"address","name":"_rETH","type":"address"},{"internalType":"address","name":"_oracle","type":"address"},{"internalType":"address","name":"_config","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sponsor","type":"address"},{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"DepositAsset","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint256","name":"etherAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"assetAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"DepositEther","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"feeAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"feeAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"FeeDistribution","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":true,"internalType":"address","name":"keeper","type":"address"},{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"uint256","name":"eusdamount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"LiquidateAssetAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"keeperReward","type":"uint256"},{"indexed":false,"internalType":"bool","name":"superLiquidation","type":"bool"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"LiquidationRecord","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sponsor","type":"address"},{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":false,"internalType":"uint256","name":"peusdAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"assetAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"RigidRedemption","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sponsor","type":"address"},{"indexed":false,"internalType":"address","name":"asset","type":"address"},{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"WithdrawAsset","type":"event"},{"inputs":[],"name":"PeUSD","outputs":[{"internalType":"contract IPeUSD","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"onBehalfOf","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"collateralAsset","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"configurator","outputs":[{"internalType":"contract Iconfigurator","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"assetAmount","type":"uint256"},{"internalType":"uint256","name":"mintAmount","type":"uint256"}],"name":"depositAssetToMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"mintAmount","type":"uint256"}],"name":"depositEtherToMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"depositedAsset","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAsset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAsset2EtherExchangeRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAssetPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getBorrowedOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPoolTotalCirculation","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVaultType","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"provider","type":"address"},{"internalType":"address","name":"onBehalfOf","type":"address"},{"internalType":"uint256","name":"assetAmount","type":"uint256"}],"name":"liquidation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"onBehalfOf","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"provider","type":"address"},{"internalType":"uint256","name":"peusdAmount","type":"uint256"},{"internalType":"uint256","name":"minReceiveAmount","type":"uint256"}],"name":"rigidRedemption","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalDepositedAsset","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"onBehalfOf","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000001d8f8f00cfa6758d7be78336684788fb0ee0fa46000000000000000000000000ae78736cd615f374d3085123a210448e74fc63930000000000000000000000004c517d4e2c851ca76d7ec94b805269df0f2201de000000000000000000000000c8353594eeedc5ce5a4544d3d9907b694c4690ff

-----Decoded View---------------
Arg [0] : _rocketStorageAddress (address): 0x1d8f8f00cfa6758d7bE78336684788Fb0ee0Fa46
Arg [1] : _rETH (address): 0xae78736Cd615f374D3085123A210448E74Fc6393
Arg [2] : _oracle (address): 0x4c517D4e2C851CA76d7eC94B805269Df0f2201De
Arg [3] : _config (address): 0xC8353594Eeedc5ce5a4544D3D9907b694c4690Ff

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000001d8f8f00cfa6758d7be78336684788fb0ee0fa46
Arg [1] : 000000000000000000000000ae78736cd615f374d3085123a210448e74fc6393
Arg [2] : 0000000000000000000000004c517d4e2c851ca76d7ec94b805269df0f2201de
Arg [3] : 000000000000000000000000c8353594eeedc5ce5a4544d3d9907b694c4690ff