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// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ReentrancyGuard} from "../../lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol";
import {Multicall} from "../../lib/openzeppelin-contracts/contracts/utils/Multicall.sol";
import {SafeERC20} from "../../lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import {IERC20} from "../../lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol";
import {IVault} from "../interfaces/IVault.sol";
import {IYieldStrippedToken} from "../interfaces/IYieldStrippedToken.sol";
import {BlastManager} from "../libraries/BlastManager.sol";
import {FixedRate} from "../FixedRate.sol";
import {VariableRate} from "../VariableRate.sol";
import {DuoAssetToken} from "./DuoAssetToken.sol";
import {CoreRef} from "../core/CoreRef.sol";

address constant WETH = 0x4300000000000000000000000000000000000004;

interface IWETH {
    function deposit() external payable;
    function withdraw(uint256) external;
}

contract WrapMintV3 is ReentrancyGuard, Multicall, CoreRef, BlastManager {
    using SafeERC20 for IERC20;

    /* Constants */
    uint256 public constant BASIS = 1 ether;

    /* Immutables */
    // solhint-disable var-name-mixedcase
    address public TOKEN;
    address public VAULT;

    /* Variable */
    address public duoAssetToken;
    address private _treasury;
    uint256 private _treasuryRate;

    /* Storage */
    mapping(address => bool) public whitelistedExchanges;
    mapping(address => address) public fixedRateContracts;
    mapping(address => address) public variableRateContracts;

    /* Events */
    event MintFixedRate(address indexed fixedRate, address indexed owner, uint256 principal, uint256 yield);
    event BurnFixedRate(address indexed fixedRate, uint256 principal, uint256 yieldToUnlock, uint256 yieldToRelease);
    event MintVariableRate(address indexed variableRate, address indexed owner, uint256 amount);
    event BurnVariableRate(address indexed variableRate, uint256 amount, uint256 yield, uint256 fee);
    event UpdateExchange(address indexed exchange, bool status);
    event UpdateDuoAssetToken(address indexed duoAssetToken);

    constructor(address token, address vault, address core) CoreRef(core) {
        TOKEN = token;
        VAULT = vault;
    }

    /*==============================================================
                               Swap Logic
    ==============================================================*/

    /**
     * @notice swap the token using a whitelisted exchange
     * @param exchange the exchange to swap on
     * @param token the source token to swap
     * @param amountIn the amount of token to swap
     * @param amountOutMin the minimum amount of token to receive
     * @param data the swap data
     * @return amountOut the amount of token received
     */
    function _swap(
        address exchange,
        address token,
        uint256 amountIn,
        uint256 amountOutMin,
        bytes calldata data
    ) internal returns (uint256 amountOut) {
        require(whitelistedExchanges[exchange], "WrapMint: unauthorized exchange");

        // approve spending to exchange
        IERC20(token).approve(exchange, amountIn);

        // swap
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = exchange.call(data);
        require(success, "WrapMint: swap failed");

        // received amount slippage
        amountOut = IERC20(IYieldStrippedToken(TOKEN).token()).balanceOf(address(this));
        require(amountOut >= amountOutMin, "WrapMint: slippage");

        // approve spending back to zero
        IERC20(token).approve(exchange, 0);
    }

    /*==============================================================
                              Mint Fixed Rate
    ==============================================================*/

    /**
     * @notice mint a fixed rate contract (represented as NFT), input with ERC20 token
     */
    function mintFixedRate(
        address exchange,
        address token,
        uint256 amountIn,
        uint256 amountOutMin,
        uint256 minLockedYield,
        bytes calldata data
    ) external nonReentrant returns (address fixedRateContract, uint256 amountOut, uint256 lockedYield) {
        // transfer input amount
        IERC20(token).safeTransferFrom(msg.sender, address(this), amountIn);

        (fixedRateContract, amountOut, lockedYield) = _mintFixedRate(
            exchange,
            token,
            amountIn,
            amountOutMin,
            minLockedYield,
            data
        );

        // refund remaining
        uint256 remaining = IERC20(token).balanceOf(address(this));
        if (remaining > 0) {
            IERC20(token).safeTransfer(msg.sender, remaining);
        }
    }

    /**
     * @notice mint a fixed rate contract (represented as NFT), input with ETH
     */
    function mintFixedRateEth(
        address exchange,
        uint256 amountIn,
        uint256 amountOutMin,
        uint256 minLockedYield,
        bytes calldata data
    ) external payable nonReentrant returns (address fixedRateContract, uint256 amountOut, uint256 lockedYield) {
        // wrap to WETH
        require(msg.value == amountIn, "WrapMint: insufficient ETH");
        IWETH(WETH).deposit{value: amountIn}();

        (fixedRateContract, amountOut, lockedYield) = _mintFixedRate(
            exchange,
            WETH,
            amountIn,
            amountOutMin,
            minLockedYield,
            data
        );

        // refund remaining
        uint256 remaining = IERC20(WETH).balanceOf(address(this));
        if (remaining > 0) {
            IWETH(WETH).withdraw(remaining);
            payable(msg.sender).transfer(remaining);
        }
    }

    /**
     * @notice mint a fixed rate contract (represented as NFT)
     * @param exchange the exchange to swap on
     * @param token the source token to swap
     * @param amountIn the amount of token to swap
     * @param amountOutMin the minimum amount of token to receive
     * @param minLockedYield the minimum amount of yield to lock
     * @param data the swap data
     * @return fixedRateContract the address of the fixed rate contract
     * @return principal the amount of principal received
     * @return lockedYield the amount of yield locked
     */
    function _mintFixedRate(
        address exchange,
        address token,
        uint256 amountIn,
        uint256 amountOutMin,
        uint256 minLockedYield,
        bytes calldata data
    ) internal returns (address fixedRateContract, uint256 principal, uint256 lockedYield) {
        // swap if needed
        address underlyingToken = IYieldStrippedToken(TOKEN).token();
        uint256 amountOut = amountIn; // if token is already underlying, no swap needed
        if (token != underlyingToken) {
            amountOut = _swap(exchange, token, amountIn, amountOutMin, data);
        }

        // approve the underlying spending to yield stripped token
        IERC20(underlyingToken).approve(TOKEN, amountOut);

        // wrap
        ///@dev if token is already wrapped TOKEN, call FixedRateNFT.mint directly
        IYieldStrippedToken(TOKEN).wrap(amountOut);

        // approve the underlying spending back to zero
        IERC20(underlyingToken).approve(TOKEN, 0);

        // approve wrapped token spending to vault
        IERC20(TOKEN).approve(VAULT, amountOut);

        // mint fixed rate contract
        (fixedRateContract, lockedYield, ) = IVault(VAULT).mintFixedRate(amountOut, minLockedYield, address(this));

        // actual principal amount after fees
        principal = FixedRate(fixedRateContract).principal();

        // approve wrapped token spending back to zero
        IERC20(TOKEN).approve(VAULT, 0);

        // mark the ownership of fixed rate contract
        fixedRateContracts[fixedRateContract] = msg.sender;

        // mint asset token to sender
        DuoAssetToken(duoAssetToken).mint(msg.sender, principal + lockedYield);

        emit MintFixedRate(fixedRateContract, msg.sender, principal, lockedYield);
    }

    /*==============================================================
                              Burn Fixed Rate
    ==============================================================*/

    /**
     * @notice burn a fixed rate contract, together with asset token, receiving principal and yield
     * @param fixedRate the fixed rate contract to burn
     * @param amount the amount of fixed rate contract to burn
     * @return yieldToUnlock the amount of yield to unlock
     * @return yieldToRelease the amount of yield to release
     */
    function burnFixedRate(
        address fixedRate,
        uint256 amount
    ) external nonReentrant returns (uint256 yieldToUnlock, uint256 yieldToRelease) {
        // caller must be owner
        require(fixedRateContracts[fixedRate] == msg.sender, "WrapMint: unauthorized");

        // use fixed rate contract to burn
        (yieldToUnlock, yieldToRelease) = FixedRate(fixedRate).burn(amount);

        // transfer the underlying to sender
        IYieldStrippedToken(TOKEN).unwrapTo(amount + yieldToRelease, msg.sender);

        // must burn the same amount of asset token
        DuoAssetToken(duoAssetToken).burnFrom(msg.sender, amount + yieldToUnlock);

        emit BurnFixedRate(fixedRate, amount, yieldToUnlock, yieldToRelease);
    }

    /*==============================================================
                           Withdraw Fixed Rate
    ==============================================================*/

    /**
     * @notice withdraw the principal of fixed rate contract, at emergency, bypassing vault
     * @param fixedRate the fixed rate contract to withdraw
     * @param amount the amount of principal to withdraw
     */
    function withdrawFixedRate(address fixedRate, uint256 amount) external nonReentrant {
        // caller must be owner
        require(fixedRateContracts[fixedRate] == msg.sender, "WrapMint: unauthorized");

        // use fixed rate contract to withdraw
        FixedRate(fixedRate).withdraw(amount);

        // transfer the underlying to sender
        IYieldStrippedToken(TOKEN).unwrapTo(amount, msg.sender);

        // must burn the same amount of asset token
        DuoAssetToken(duoAssetToken).burnFrom(msg.sender, amount);
    }

    /*==============================================================
                           Mint Variable Rate
    ==============================================================*/

    /**
     * @notice mint a variable rate contract, input with ERC20 token
     */
    function mintVariableRate(
        address exchange,
        address token,
        uint256 amountIn,
        uint256 amountOutMin,
        bytes calldata data
    ) external nonReentrant returns (address variableRateContract, uint256 amountOut) {
        // transfer input amount
        IERC20(token).safeTransferFrom(msg.sender, address(this), amountIn);

        (variableRateContract, amountOut) = _mintVariableRate(exchange, token, amountIn, amountOutMin, data);

        // refund remaining
        uint256 remaining = IERC20(token).balanceOf(address(this));
        if (remaining > 0) {
            IERC20(token).safeTransfer(msg.sender, remaining);
        }
    }

    /**
     * @notice mint a variable rate contract, input with ETH
     */
    function mintVariableRateEth(
        address exchange,
        uint256 amountIn,
        uint256 amountOutMin,
        bytes calldata data
    ) external payable nonReentrant returns (address variableRateContract, uint256 amountOut) {
        // wrap to WETH
        require(msg.value == amountIn, "WrapMint: insufficient ETH");
        IWETH(WETH).deposit{value: amountIn}();

        (variableRateContract, amountOut) = _mintVariableRate(exchange, WETH, amountIn, amountOutMin, data);

        // refund remaining
        uint256 remaining = IERC20(WETH).balanceOf(address(this));
        if (remaining > 0) {
            IWETH(WETH).withdraw(remaining);
            payable(msg.sender).transfer(remaining);
        }
    }

    /**
     * @notice mint a variable rate contract
     * @param exchange the exchange to swap on
     * @param token the source token to swap
     * @param amountIn the amount of token to swap
     * @param amountOutMin the minimum amount of token to receive
     * @param data the swap data
     * @return variableRateContract the address of the variable rate contract
     * @return amountOut the amount of token received
     */
    function _mintVariableRate(
        address exchange,
        address token,
        uint256 amountIn,
        uint256 amountOutMin,
        bytes calldata data
    ) internal returns (address variableRateContract, uint256 amountOut) {
        // swap if needed
        address underlyingToken = IYieldStrippedToken(TOKEN).token();
        amountOut = amountIn; // if token is already underlying, no swap needed
        if (token != underlyingToken) {
            amountOut = _swap(exchange, token, amountIn, amountOutMin, data);
        }

        // approve the underlying spending to yield stripped token
        IERC20(underlyingToken).approve(TOKEN, amountOut);

        // wrap
        ///@dev if token is already wrapped TOKEN, call VAULT.mintVariableRate directly
        IYieldStrippedToken(TOKEN).wrap(amountOut);

        // approve the underlying spending back to zero
        IERC20(underlyingToken).approve(TOKEN, 0);

        // approve spending to vault
        IERC20(TOKEN).approve(VAULT, amountOut);

        // mint variable rate contract
        variableRateContract = IVault(VAULT).mintVariableRate(amountOut, address(this));

        // approve spending back to zero
        IERC20(TOKEN).approve(VAULT, 0);

        // mark the ownership of variable rate contract
        variableRateContracts[variableRateContract] = msg.sender;

        // mint asset token to sender
        DuoAssetToken(duoAssetToken).mint(msg.sender, amountOut);

        emit MintVariableRate(variableRateContract, msg.sender, amountOut);
    }

    /*==============================================================
                           Burn Variable Rate
    ==============================================================*/

    /**
     * @notice burn a variable rate contract, together with asset token, receiving principal and yield
     * @param variableRate the variable rate contract to burn
     * @param amount the amount of variable rate contract to burn
     * @param minYield the minimum amount of yield to unlock
     * @return yield the amount of yield unlocked
     * @return fee the amount of fee
     */
    function burnVariableRate(
        address variableRate,
        uint256 amount,
        uint256 minYield
    ) external nonReentrant returns (uint256 yield, uint256 fee) {
        // caller must be owner
        require(variableRateContracts[variableRate] == msg.sender, "WrapMint: unauthorized");

        // use variable rate contract to burn
        (yield, fee) = VariableRate(variableRate).burn(amount, minYield);

        // take treasury fee
        if (_treasuryRate > 0 && _treasury != address(0)) {
            uint256 treasured = (yield * _treasuryRate) / BASIS;
            yield -= treasured;
            IYieldStrippedToken(TOKEN).unwrapTo(treasured, _treasury);
        }

        // transfer the underlying to sender
        IYieldStrippedToken(TOKEN).unwrapTo(amount + yield + fee, msg.sender);

        // must burn the principal amount of asset token
        DuoAssetToken(duoAssetToken).burnFrom(msg.sender, amount);

        emit BurnVariableRate(variableRate, amount, yield, fee);
    }

    /*==============================================================
                           Withdraw Variable Rate
    ==============================================================*/

    /**
     * @notice withdraw the principal of variable rate contract, at emergency, bypassing vault
     * @param variableRate the variable rate contract to withdraw
     * @param amount the amount of principal to withdraw
     */
    function withdrawVariableRate(address variableRate, uint256 amount) external nonReentrant {
        // caller must be owner
        require(variableRateContracts[variableRate] == msg.sender, "WrapMint: unauthorized");

        // use variable rate contract to withdraw
        VariableRate(variableRate).withdraw(amount);

        // transfer the underlying to sender
        IYieldStrippedToken(TOKEN).unwrapTo(amount, msg.sender);

        // must burn the principal amount of asset token
        DuoAssetToken(duoAssetToken).burnFrom(msg.sender, amount);
    }

    /*==============================================================
                             Admin Control
    ==============================================================*/

    function addExchange(address exchange) external onlyGovernor {
        whitelistedExchanges[exchange] = true;
        emit UpdateExchange(exchange, true);
    }

    function removeExchange(address exchange) external onlyGovernor {
        whitelistedExchanges[exchange] = false;
        emit UpdateExchange(exchange, false);
    }

    function setDuoAssetToken(address token) external onlyGovernor {
        duoAssetToken = token;
        emit UpdateDuoAssetToken(token);
    }

    function setTreasuryRate(uint256 treasuryRate) external onlyGovernor {
        require(treasuryRate < BASIS, "WrapMint: invalid treasury rate");
        _treasuryRate = treasuryRate;
    }

    function setTreasury(address treasury) external onlyGovernor {
        _treasury = treasury;
    }

    /*==============================================================
                             Token Receiver
    ==============================================================*/

    receive() external payable {}
}

// 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) (utils/Multicall.sol)

pragma solidity ^0.8.0;

import "./Address.sol";

/**
 * @dev Provides a function to batch together multiple calls in a single external call.
 *
 * _Available since v4.1._
 */
abstract contract Multicall {
    /**
     * @dev Receives and executes a batch of function calls on this contract.
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) {
        results = new bytes[](data.length);
        for (uint256 i = 0; i < data.length; i++) {
            results[i] = Address.functionDelegateCall(address(this), data[i]);
        }
        return results;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (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. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.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 v4.4.1 (interfaces/IERC20.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

interface IVault {
    /*==============================================================
                               Event Logs
    ==============================================================*/

    event MintFixedRate(address indexed owner, uint256 id, uint256 mintAmount, uint256 lockedAmount);
    event BurnFixedRate(address indexed owner, uint256 id, uint256 burnAmount, uint256 yield);
    event MintVariableRate(address indexed owner, uint256 mintAmount);
    event BurnVariableRate(address indexed owner, uint256 burnAmount, uint256 yield, uint256 positionFee);
    event EstimateYield(uint256 currentRate, bool updated);
    event UpdateYieldManager(address indexed newYieldManager);
    event UpdateYieldEstimateWindow(uint256 window);
    event UpdateCurve(uint256 s1, uint256 s2, uint256 s3, uint256 r1, uint256 r2);
    event UpdatePositionFeeRate(uint256 fee);

    /*==============================================================
                         Fixed rate LP deposit
    ==============================================================*/

    /**
     * @notice Deposit a principal amount to lock a fixed yield rate until maturity
     * @param amount the deposit amount
     * @param minLockedYield the minimum amount to lock, for slippage protection
     * @param recipient the address to receive the fixedRate contract
     * @return owner the address to the fixedRate contract
     * @return lockedYield the amount locked, which over time releases the yield at fixed rate
     * @return maturityTimestamp the maturity timestamp
     */
    function mintFixedRate(
        uint256 amount,
        uint256 minLockedYield,
        address recipient
    ) external returns (address owner, uint256 lockedYield, uint256 maturityTimestamp);

    /*==============================================================
                        Fixed rate LP withdraw
    ==============================================================*/

    /**
     * @notice Withdraw a principal amount from a fixed yield rate deposit
     * @param id the deposit id
     * @param amount the amount of principal to withdraw
     * @return yieldToUnlock the yield to unlock from the locked amount
     * @return yieldToRelease the yield to release to the owner
     */
    function burnFixedRate(uint256 id, uint256 amount) external returns (uint256 yieldToUnlock, uint256 yieldToRelease);

    /*==============================================================
                       Variable rate LP deposit
    ==============================================================*/

    /**
     * @notice Deposit a principal amount for variable yield rate
     * @param amount the deposit amount
     * @param recipient the address to receive the variableRate contract
     * @return owner the address to the variableRate contract
     */
    function mintVariableRate(uint256 amount, address recipient) external returns (address owner);

    /*==============================================================
                      Variable rate LP withdraw
    ==============================================================*/

    /**
     * @notice Withdraw a principal amount from a variable yield rate deposit
     * @param amount the amount of principal to withdraw
     * @param minYield the minimum yield to receive, for slippage protection
     * @return yield the yield amount
     * @return fee the position fee
     */
    function burnVariableRate(uint256 amount, uint256 minYield) external returns (uint256 yield, uint256 fee);

    /*==============================================================
                            Helper Functions
    ==============================================================*/

    /**
     * @notice get the amount to lock based on the current fixed term rate and the deposit amount
     * @param amount the deposit amount
     * @return yieldToLock the amount to lock
     */
    function getYieldToLock(uint256 amount) external view returns (uint256 yieldToLock);

    /**
     * @notice get the maximum amount of principal for a fixed term rate
     * @return amount the maximum amount of principal
     */
    function getMaxFixedRateAmount() external view returns (uint256 amount);

    /**
     * @notice get the current fixed term rate from idle yield / total yield
     * @param amount the deposit amount
     * @return rate the current fixed term rate
     */
    function getFixedRate(uint256 amount) external view returns (uint256 rate);

    /**
     * @notice get the total yield from the protocol
     * @return totalYield the total yield
     */
    function getTotalYield() external view returns (uint256 totalYield);

    /**
     * @notice get the current yield and position fee accrued to a variable rate LP
     * @param owner the address of the LP
     * @return yield the current yield
     * @return fee the current position fee
     */
    function getCurrentVariableRate(address owner) external view returns (uint256 yield, uint256 fee);

    /*==============================================================
                              Admin Logic
    ==============================================================*/

    /**
     * @notice Update the yield manager
     * @param newYieldManager the new yield manager
     */
    function updateYieldManager(address newYieldManager) external;

    /**
     * @notice Update the fixed term rate curve
     * @param s1 the slope of chunk 1
     * @param s2 the slope of chunk 2
     * @param s3 the slope of chunk 3
     * @param r1 the ratio cutoff between chunk 1 and 2
     * @param r2 the ratio cutoff between chunk 2 and 3
     */
    function updateCurve(uint256 s1, uint256 s2, uint256 s3, uint256 r1, uint256 r2) external;

    /**
     * @notice Update the position fee
     * @param fee the new position fee
     */
    function updatePositionFeeRate(uint256 fee) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

interface IYieldStrippedToken {
    function token() external view returns (address);
    function totalSupply() external view returns (uint256);
    function wrap(uint256 amount) external returns (uint256);
    function unwrapTo(uint256 amount, address to) external returns (uint256);
    function mint(address account, uint256 amount) external;
    function burnFrom(address account, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {IBlast} from "../interfaces/IBlast.sol";
import {IBlastPoints} from "../interfaces/IBlastPoints.sol";

contract BlastManager {
    IBlast public constant BLAST = IBlast(0x4300000000000000000000000000000000000002);
    address public manager;

    modifier onlyManager() {
        require(msg.sender == manager, "Blast: not manager");
        _;
    }

    constructor() {
        manager = msg.sender;
        BLAST.configureClaimableGas();
    }

    function claimGas(address recipient, bool isMax) external onlyManager returns (uint256) {
        if (isMax) {
            return BLAST.claimMaxGas(address(this), recipient);
        } else {
            return BLAST.claimAllGas(address(this), recipient);
        }
    }

    function setManager(address _manager) external onlyManager {
        manager = _manager;
    }

    function setGasMode(address blastGas) external onlyManager {
        IBlast(blastGas).configureClaimableGas();
    }

    function setPointsOperator(address blastPoints, address operator) external onlyManager {
        IBlastPoints(blastPoints).configurePointsOperator(operator);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ReentrancyGuard} from "../lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol";
import {IERC20} from "../lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol";
import {SafeERC20} from "../lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import {IVault} from "./interfaces/IVault.sol";
import {ICoreRef} from "./core/ICoreRef.sol";

contract FixedRate is ReentrancyGuard {
    using SafeERC20 for IERC20;

    /* Immutables */
    // solhint-disable var-name-mixedcase
    address public TOKEN;
    address public VAULT;
    address public OWNER;

    /* Variables */
    bool public initialized;
    uint256 public id;
    uint256 public principal;
    uint256 public yield;
    uint256 public maturityTimestamp;

    function initialize(address token, address vault, address owner) external nonReentrant {
        require(!initialized, "FixedRate: already initialized");
        initialized = true;
        TOKEN = token;
        VAULT = vault;
        OWNER = owner;
    }

    function mint(
        uint256 _id,
        uint256 _principal,
        uint256 _yield,
        uint256 _maturityTimestamp
    ) external nonReentrant onlyVault {
        require(IERC20(TOKEN).balanceOf(address(this)) >= _principal + _yield, "FixedRate: insufficient fund");
        id = _id;
        principal = _principal;
        yield = _yield;
        maturityTimestamp = _maturityTimestamp;
    }

    function burn(
        uint256 amount
    ) external nonReentrant onlyOwner returns (uint256 yieldToUnlock, uint256 yieldToRelease) {
        require(amount <= principal, "FixedRate: overspend");
        (yieldToUnlock, yieldToRelease) = IVault(VAULT).burnFixedRate(id, amount);
        uint256 yieldBurned = yieldToUnlock - yieldToRelease;
        require(
            IERC20(TOKEN).balanceOf(address(this)) >= principal + yield - yieldBurned,
            "FixedRate: insufficient fund" // contract should now contain principal and remaining yield
        );
        principal -= amount;
        yield -= yieldToUnlock; // arithmetic check guarantees yieldToUnlock <= yield
        IERC20(TOKEN).safeTransfer(OWNER, amount + yieldToRelease);
    }

    function withdraw(uint256 amount) external nonReentrant onlyOwner onlyEmergency {
        require(amount <= principal, "FixedRate: overspend");
        principal -= amount;
        IERC20(TOKEN).safeTransfer(OWNER, amount);
    }

    modifier onlyOwner() {
        require(msg.sender == OWNER, "FixedRate: not owner");
        _;
    }

    modifier onlyVault() {
        require(msg.sender == VAULT, "FixedRate: not vault");
        _;
    }

    modifier onlyEmergency() {
        require(ICoreRef(VAULT).emergency(), "FixedRate: not emergency");
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ReentrancyGuard} from "../lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol";
import {IERC20} from "../lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol";
import {SafeERC20} from "../lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import {IVault} from "./interfaces/IVault.sol";
import {ICoreRef} from "./core/ICoreRef.sol";

contract VariableRate is ReentrancyGuard {
    using SafeERC20 for IERC20;

    /* Immutables */
    // solhint-disable var-name-mixedcase
    address public TOKEN;
    address public VAULT;
    address public OWNER;

    /* Variables */
    bool public initialized;
    uint256 public principal;

    function initialize(address token, address vault, address owner) external nonReentrant {
        require(!initialized, "VariableRate: already initialized");
        initialized = true;
        TOKEN = token;
        VAULT = vault;
        OWNER = owner;
    }

    function mint(uint256 amount) external nonReentrant onlyVault {
        require(IERC20(TOKEN).balanceOf(address(this)) >= principal + amount, "VariableRate: insufficient fund");
        principal += amount;
    }

    function burn(
        uint256 amount,
        uint256 minYield
    ) external nonReentrant onlyOwner returns (uint256 yield, uint256 fee) {
        require(amount <= principal, "VariableRate: overspend");
        (yield, fee) = IVault(VAULT).burnVariableRate(amount, minYield);
        require(IERC20(TOKEN).balanceOf(address(this)) >= principal + yield + fee, "VariableRate: insufficient fund");
        principal -= amount;
        IERC20(TOKEN).safeTransfer(OWNER, amount + yield + fee);
    }

    function withdraw(uint256 amount) external nonReentrant onlyOwner onlyEmergency {
        require(amount <= principal, "VariableRate: overspend");
        principal -= amount;
        IERC20(TOKEN).safeTransfer(OWNER, amount);
    }

    modifier onlyOwner() {
        require(msg.sender == OWNER, "VariableRate: not owner");
        _;
    }

    modifier onlyVault() {
        require(msg.sender == VAULT, "VariableRate: not vault");
        _;
    }

    modifier onlyEmergency() {
        require(ICoreRef(VAULT).emergency(), "VariableRate: not emergency");
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ERC20} from "../../lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol";
import {ERC20Burnable} from "../../lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {CoreRef} from "../core/CoreRef.sol";
import {BlastManager} from "../libraries/BlastManager.sol";
import {IDuoAssetToken} from "../interfaces/IDuoAssetToken.sol";

contract DuoAssetToken is IDuoAssetToken, ERC20Burnable, CoreRef, BlastManager {
    // solhint-disable-next-line var-name-mixedcase
    bytes32 public DOMAIN_SEPARATOR;
    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
    mapping(address => uint256) public nonces;

    constructor(string memory name_, string memory symbol_, address core_) ERC20(name_, symbol_) CoreRef(core_) {
        uint256 chainId;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            chainId := chainid()
        }
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                keccak256(bytes(name())),
                keccak256(bytes("1")),
                chainId,
                address(this)
            )
        );
    }

    /**
     * @notice mint new tokens
     * @param account the address of the destination account
     * @param amount the number of tokens to be minted
     */
    function mint(address account, uint256 amount) external override onlyMinter {
        _mint(account, amount);
        emit Minting(account, msg.sender, amount);
    }

    /**
     * @notice burn Duo asset tokens from caller
     * @param amount the amount to burn
     */
    function burn(uint256 amount) public override(IDuoAssetToken, ERC20Burnable) {
        super.burn(amount);
        emit Burning(msg.sender, msg.sender, amount);
    }

    /**
     * @notice burn Duo asset tokens from specified account
     * @param account the account to burn from
     * @param amount the amount to burn
     */
    function burnFrom(address account, uint256 amount) public override(IDuoAssetToken, ERC20Burnable) onlyBurner {
        _burn(account, amount);
        emit Burning(account, msg.sender, amount);
    }

    /**
     * @notice triggers an approval from owner to spends
     * @param owner the address to approve from
     * @param spender the address to be approved
     * @param value the number of tokens that are approved (2^256-1 means infinite)
     * @param deadline the time at which to expire the signature
     * @param v the recovery byte of the signature
     * @param r half of the ECDSA signature pair
     * @param s half of the ECDSA signature pair
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external override {
        require(deadline >= block.timestamp, "Duo: EXPIRED");
        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                DOMAIN_SEPARATOR,
                keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
            )
        );
        address recoveredAddress = ecrecover(digest, v, r, s);
        require(recoveredAddress != address(0) && recoveredAddress == owner, "Duo: INVALID_SIGNATURE");
        _approve(owner, spender, value);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ICore} from "../core/ICore.sol";
import {ICoreRef} from "./ICoreRef.sol";

/// @title A Reference to Core
/// @notice defines some modifiers and utilities around interacting with Core
abstract contract CoreRef is ICoreRef {
    ICore private _core;

    // solhint-disable-next-line var-name-mixedcase
    bool public EMERGENCY;

    /// @notice CoreRef constructor
    /// @param coreAddress Few Core to reference
    constructor(address coreAddress) {
        _core = ICore(coreAddress);
    }

    modifier onlyMinter() {
        require(_core.isMinter(msg.sender), "CoreRef: Caller is not a minter");
        _;
    }

    modifier onlyBurner() {
        require(_core.isBurner(msg.sender), "CoreRef: Caller is not a burner");
        _;
    }

    modifier onlyGovernor() {
        require(_core.isGovernor(msg.sender), "CoreRef: Caller is not a governor");
        _;
    }

    modifier onlyGuardianOrGovernor() {
        require(
            _core.isGovernor(msg.sender) || _core.isGuardian(msg.sender),
            "CoreRef: Caller is not a guardian or governor"
        );
        _;
    }

    /// @notice set new Core reference address
    /// @param coreAddress the new core address
    function setCore(address coreAddress) external override onlyGovernor {
        _core = ICore(coreAddress);
        emit CoreUpdate(coreAddress);
    }

    function emergency() external view override returns (bool) {
        return EMERGENCY;
    }

    function startEmergency() external override onlyGuardianOrGovernor {
        EMERGENCY = true;
        emit EmergencyUpdate(true);
    }

    function stopEmergency() external override onlyGuardianOrGovernor {
        EMERGENCY = false;
        emit EmergencyUpdate(false);
    }

    /// @notice address of the Core contract referenced
    /// @return ICore implementation address
    function core() public view override returns (ICore) {
        return _core;
    }
}

// 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 (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/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
pragma solidity 0.8.23;

enum YieldMode {
    AUTOMATIC,
    DISABLED,
    CLAIMABLE
}

enum GasMode {
    VOID,
    CLAIMABLE
}

interface IBlast {
    // configure
    function configureContract(
        address contractAddress,
        YieldMode _yield,
        GasMode gasMode,
        address governor
    ) external;

    function configure(
        YieldMode _yield,
        GasMode gasMode,
        address governor
    ) external;

    // base configuration options
    function configureClaimableYield() external;

    function configureClaimableYieldOnBehalf(address contractAddress) external;

    function configureAutomaticYield() external;

    function configureAutomaticYieldOnBehalf(address contractAddress) external;

    function configureVoidYield() external;

    function configureVoidYieldOnBehalf(address contractAddress) external;

    function configureClaimableGas() external;

    function configureClaimableGasOnBehalf(address contractAddress) external;

    function configureVoidGas() external;

    function configureVoidGasOnBehalf(address contractAddress) external;

    function configureGovernor(address _governor) external;

    function configureGovernorOnBehalf(
        address _newGovernor,
        address contractAddress
    ) external;

    // claim yield
    function claimYield(
        address contractAddress,
        address recipientOfYield,
        uint256 amount
    ) external returns (uint256);

    function claimAllYield(
        address contractAddress,
        address recipientOfYield
    ) external returns (uint256);

    // claim gas
    function claimAllGas(
        address contractAddress,
        address recipientOfGas
    ) external returns (uint256);

    function claimGasAtMinClaimRate(
        address contractAddress,
        address recipientOfGas,
        uint256 minClaimRateBips
    ) external returns (uint256);

    function claimMaxGas(
        address contractAddress,
        address recipientOfGas
    ) external returns (uint256);

    function claimGas(
        address contractAddress,
        address recipientOfGas,
        uint256 gasToClaim,
        uint256 gasSecondsToConsume
    ) external returns (uint256);

    // read functions
    function readClaimableYield(
        address contractAddress
    ) external view returns (uint256);

    function readYieldConfiguration(
        address contractAddress
    ) external view returns (uint8);

    function readGasParams(
        address contractAddress
    )
        external
        view
        returns (
            uint256 etherSeconds,
            uint256 etherBalance,
            uint256 lastUpdated,
            GasMode
        );
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

interface IBlastPoints {
    /**
     * @notice Blast standard: configure for blast point operator address
     * @param operator the blast points operator address
     */
    function configurePointsOperator(address operator) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ICore} from "../core/ICore.sol";

/// @title CoreRef interface
interface ICoreRef {
    event CoreUpdate(address indexed _core);
    event EmergencyUpdate(bool _emergency);
    event MinterUpdate(address indexed _minter, bool _status);
    event BurnerUpdate(address indexed _burner, bool _status);

    function emergency() external view returns (bool);

    function startEmergency() external;

    function stopEmergency() external;

    function setCore(address coreAddress) external;

    function core() external view returns (ICore);
}

// 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 (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        _spendAllowance(account, _msgSender(), amount);
        _burn(account, amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {IERC20} from "../../lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";

interface IDuoAssetToken is IERC20 {
    event Minting(address indexed _to, address indexed _minter, uint256 _amount);
    event Burning(address indexed _to, address indexed _burner, uint256 _amount);

    function burn(uint256 amount) external;

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    function burnFrom(address account, uint256 amount) external;

    function mint(address account, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

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

/// @title Core Interface
interface ICore is IPermissions {
    function init() 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 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
pragma solidity 0.8.23;

/// @title Permissions interface
interface IPermissions {
    // ----------- Governor only state changing api -----------

    function createRole(bytes32 role, bytes32 adminRole) external;

    function grantGovernor(address governor) external;

    function grantGuardian(address guardian) external;

    function grantMinter(address minter) external;

    function grantBurner(address burner) external;

    function revokeGovernor(address governor) external;

    function revokeGuardian(address guardian) external;

    function revokeMinter(address minter) external;

    function revokeBurner(address burner) external;

    // ----------- Revoker only state changing api -----------

    function revokeOverride(bytes32 role, address account) external;

    // ----------- Getters -----------

    function isGovernor(address _address) external view returns (bool);

    function isGuardian(address _address) external view returns (bool);

    function isMinter(address _address) external view returns (bool);

    function isBurner(address _address) external view returns (bool);
}

{
  "remappings": [
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/openzeppelin-contracts/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

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IBlast","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"EMERGENCY","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TOKEN","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VAULT","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"exchange","type":"address"}],"name":"addExchange","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"fixedRate","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFixedRate","outputs":[{"internalType":"uint256","name":"yieldToUnlock","type":"uint256"},{"internalType":"uint256","name":"yieldToRelease","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"variableRate","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"minYield","type":"uint256"}],"name":"burnVariableRate","outputs":[{"internalType":"uint256","name":"yield","type":"uint256"},{"internalType":"uint256","name":"fee","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"bool","name":"isMax","type":"bool"}],"name":"claimGas","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"core","outputs":[{"internalType":"contract ICore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"duoAssetToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"emergency","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"fixedRateContracts","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"manager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"exchange","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"uint256","name":"minLockedYield","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"mintFixedRate","outputs":[{"internalType":"address","name":"fixedRateContract","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"lockedYield","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"exchange","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"uint256","name":"minLockedYield","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"mintFixedRateEth","outputs":[{"internalType":"address","name":"fixedRateContract","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"lockedYield","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"exchange","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"mintVariableRate","outputs":[{"internalType":"address","name":"variableRateContract","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"exchange","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"mintVariableRateEth","outputs":[{"internalType":"address","name":"variableRateContract","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"exchange","type":"address"}],"name":"removeExchange","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"coreAddress","type":"address"}],"name":"setCore","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"setDuoAssetToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"blastGas","type":"address"}],"name":"setGasMode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_manager","type":"address"}],"name":"setManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"blastPoints","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"setPointsOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"treasury","type":"address"}],"name":"setTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"treasuryRate","type":"uint256"}],"name":"setTreasuryRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startEmergency","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stopEmergency","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"variableRateContracts","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address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