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// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

import "../interfaces/strategies/IDefaultBondStrategy.sol";

import "../libraries/external/FullMath.sol";

import "../utils/DefaultAccessControl.sol";

contract DefaultBondStrategy is IDefaultBondStrategy, DefaultAccessControl {
    /// @inheritdoc IDefaultBondStrategy
    uint256 public constant Q96 = 2 ** 96;

    /// @inheritdoc IDefaultBondStrategy
    IVault public immutable vault;
    /// @inheritdoc IDefaultBondStrategy
    IERC20TvlModule public immutable erc20TvlModule;
    /// @inheritdoc IDefaultBondStrategy
    IDefaultBondModule public immutable bondModule;

    /// @inheritdoc IDefaultBondStrategy
    mapping(address => bytes) public tokenToData;

    constructor(
        address admin,
        IVault vault_,
        IERC20TvlModule erc20TvlModule_,
        IDefaultBondModule bondModule_
    ) DefaultAccessControl(admin) {
        vault = vault_;
        erc20TvlModule = erc20TvlModule_;
        bondModule = bondModule_;
    }

    /// @inheritdoc IDefaultBondStrategy
    function setData(address token, Data[] memory data) external {
        _requireAdmin();
        if (token == address(0)) revert AddressZero();
        uint256 cumulativeRatio = 0;
        for (uint256 i = 0; i < data.length; i++) {
            if (data[i].bond == address(0)) revert AddressZero();
            if (IDefaultBond(data[i].bond).asset() != token)
                revert InvalidBond();
            cumulativeRatio += data[i].ratioX96;
        }
        if (cumulativeRatio != Q96) revert InvalidCumulativeRatio();
        tokenToData[token] = abi.encode(data);
        emit DefaultBondStrategySetData(token, data, block.timestamp);
    }

    function _deposit() private {
        ITvlModule.Data[] memory tvl = erc20TvlModule.tvl(address(vault));
        for (uint256 i = 0; i < tvl.length; i++) {
            address token = tvl[i].token;
            bytes memory data_ = tokenToData[token];
            if (data_.length == 0) continue;
            Data[] memory data = abi.decode(data_, (Data[]));
            for (uint256 j = 0; j < data.length; j++) {
                uint256 amount = FullMath.mulDiv(
                    tvl[i].amount,
                    data[j].ratioX96,
                    Q96
                );
                if (amount == 0) continue;
                vault.delegateCall(
                    address(bondModule),
                    abi.encodeWithSelector(
                        IDefaultBondModule.deposit.selector,
                        data[j].bond,
                        amount
                    )
                );
            }
        }
    }

    /// @inheritdoc IDepositCallback
    function depositCallback(uint256[] memory, uint256) external override {
        if (msg.sender != address(vault)) _requireAtLeastOperator();
        _deposit();
    }

    /// @inheritdoc IDefaultBondStrategy
    function processAll() external {
        _requireAtLeastOperator();
        _processWithdrawals(vault.pendingWithdrawers());
    }

    /// @inheritdoc IDefaultBondStrategy
    function processWithdrawals(address[] memory users) external {
        if (users.length == 0) return;
        _requireAtLeastOperator();
        _processWithdrawals(users);
    }

    function _processWithdrawals(address[] memory users) private {
        if (users.length == 0) return;

        address[] memory tokens = vault.underlyingTokens();
        for (uint256 index = 0; index < tokens.length; index++) {
            bytes memory data_ = tokenToData[tokens[index]];
            if (data_.length == 0) continue;
            Data[] memory data = abi.decode(data_, (Data[]));
            for (uint256 i = 0; i < data.length; i++) {
                uint256 amount = IERC20(data[i].bond).balanceOf(address(vault));
                if (amount == 0) continue;
                vault.delegateCall(
                    address(bondModule),
                    abi.encodeWithSelector(
                        IDefaultBondModule.withdraw.selector,
                        data[i].bond,
                        amount
                    )
                );
            }
        }

        vault.processWithdrawals(users);
        _deposit();
        emit DefaultBondStrategyProcessWithdrawals(users, block.timestamp);
    }
}

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

import "../utils/IDepositCallback.sol";

import "../modules/erc20/IERC20TvlModule.sol";
import "../modules/symbiotic/IDefaultBondModule.sol";

/**
 * @title IDefaultBondStrategy
 * @notice Interface defining the functions for managing bond strategies with deposits and withdrawals.
 *   The contract of the basic defaultBond strategy, the only operations of which are deposits into various bonds in a specified proportion
 *   and processing of user withdrawals. Note that this strategy allows users to make instant withdrawals when calling processWithdrawals([msg.sender]).
 */
interface IDefaultBondStrategy is IDepositCallback {
    /// @dev Errors
    error InvalidCumulativeRatio();
    error InvalidBond();

    /**
     * @notice Structure representing data for a specific bond allocation.
     * @param bond The address of the bond to allocate funds to.
     * @param ratioX96 The proportion of funds to allocate to this bond, using a 96-bit precision ratio.
     */
    struct Data {
        address bond;
        uint256 ratioX96;
    }

    /**
     * @notice Returns the constant Q96, which is used as a multiplier for ratio calculations.
     * @return The value of Q96 (2^96) for ratio calculations.
     */
    function Q96() external view returns (uint256);

    /**
     * @notice Returns the vault associated with this strategy.
     * @return The address of the vault.
     */
    function vault() external view returns (IVault);

    /**
     * @notice Returns the ERC20 TVL module used for calculating token values.
     * @return IERC20TvlModule The address of the ERC20 TVL module.
     */
    function erc20TvlModule() external view returns (IERC20TvlModule);

    /**
     * @notice Returns the bond module used for managing bond transactions.
     * @return IDefaultBondModule The address of the bond module.
     */
    function bondModule() external view returns (IDefaultBondModule);

    /**
     * @notice Returns the bond data associated with a specific token address.
     * @param token The address of the token.
     * @return bytes The bond data encoded as bytes.
     */
    function tokenToData(address token) external view returns (bytes memory);

    /**
     * @notice Sets the bond allocation data for a specific token.
     * @param token The address of the token to associate with bond data.
     * @param data An array of `Data` structures representing the bond allocation details.
     * @dev The cumulative ratio of all bond allocations should sum up to `Q96`.
     */
    function setData(address token, Data[] memory data) external;

    /**
     * @notice Processes all pending withdrawals for all users.
     * Withdraws from bonds and processes through the vault.
     */
    function processAll() external;

    /**
     * @notice Processes withdrawals for a specific list of users.
     * Withdraws from bonds and processes through the vault.
     * @param users An array of user addresses to process withdrawals for.
     */
    function processWithdrawals(address[] memory users) external;

    /**
     * @notice Emitted when bond allocation data is set for a specific token in the Default Bond Strategy.
     * @param token The address of the token for which bond allocation data is set.
     * @param data An array of `Data` structures representing the bond allocation details.
     * @param timestamp The timestamp when the bond allocation data is set.
     */
    event DefaultBondStrategySetData(
        address indexed token,
        IDefaultBondStrategy.Data[] data,
        uint256 timestamp
    );

    /**
     * @notice Emitted when withdrawals are processed for a list of users in the Default Bond Strategy.
     * @param users An array of user addresses for whom withdrawals are processed.
     * @param timestamp The timestamp when the withdrawals are processed.
     */
    event DefaultBondStrategyProcessWithdrawals(
        address[] users,
        uint256 timestamp
    );
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/// @title Contains 512-bit math functions
/// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision
/// @dev Handles "phantom overflow" i.e., allows multiplication and division where an intermediate value overflows 256 bits
library FullMath {
    /// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
    /// @param a The multiplicand
    /// @param b The multiplier
    /// @param denominator The divisor
    /// @return result The 256-bit result
    /// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv
    function mulDiv(
        uint256 a,
        uint256 b,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        // diff: original lib works under 0.7.6 with overflows enabled
        unchecked {
            // 512-bit multiply [prod1 prod0] = a * b
            // Compute the product mod 2**256 and mod 2**256 - 1
            // then use the Chinese Remainder Theorem to reconstruct
            // the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2**256 + prod0
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(a, b, not(0))
                prod0 := mul(a, b)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division
            if (prod1 == 0) {
                require(denominator > 0);
                assembly {
                    result := div(prod0, denominator)
                }
                return result;
            }

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

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

            // Make division exact by subtracting the remainder from [prod1 prod0]
            // Compute remainder using mulmod
            uint256 remainder;
            assembly {
                remainder := mulmod(a, b, denominator)
            }
            // Subtract 256 bit number from 512 bit number
            assembly {
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator
            // Compute largest power of two divisor of denominator.
            // Always >= 1.
            // diff: original uint256 twos = -denominator & denominator;
            uint256 twos = uint256(-int256(denominator)) & denominator;
            // Divide denominator by power of two
            assembly {
                denominator := div(denominator, twos)
            }

            // Divide [prod1 prod0] by the factors of two
            assembly {
                prod0 := div(prod0, twos)
            }
            // Shift in bits from prod1 into prod0. For this we need
            // to flip `twos` such that it is 2**256 / twos.
            // If twos is zero, then it becomes one
            assembly {
                twos := add(div(sub(0, twos), twos), 1)
            }
            prod0 |= prod1 * twos;

            // Invert denominator mod 2**256
            // Now that denominator is an odd number, it has an inverse
            // modulo 2**256 such that denominator * inv = 1 mod 2**256.
            // Compute the inverse by starting with a seed that is correct
            // correct for four bits. That is, denominator * inv = 1 mod 2**4
            uint256 inv = (3 * denominator) ^ 2;
            // Now use Newton-Raphson iteration to improve the precision.
            // Thanks to Hensel's lifting lemma, this also works in modular
            // arithmetic, doubling the correct bits in each step.
            inv *= 2 - denominator * inv; // inverse mod 2**8
            inv *= 2 - denominator * inv; // inverse mod 2**16
            inv *= 2 - denominator * inv; // inverse mod 2**32
            inv *= 2 - denominator * inv; // inverse mod 2**64
            inv *= 2 - denominator * inv; // inverse mod 2**128
            inv *= 2 - denominator * inv; // inverse mod 2**256

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

    /// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
    /// @param a The multiplicand
    /// @param b The multiplier
    /// @param denominator The divisor
    /// @return result The 256-bit result
    function mulDivRoundingUp(
        uint256 a,
        uint256 b,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        // diff: original lib works under 0.7.6 with overflows enabled
        unchecked {
            result = mulDiv(a, b, denominator);
            if (mulmod(a, b, denominator) > 0) {
                require(result < type(uint256).max);
                result++;
            }
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;

import "@openzeppelin/contracts/access/extensions/AccessControlEnumerable.sol";
import "../interfaces/utils/IDefaultAccessControl.sol";

contract DefaultAccessControl is
    IDefaultAccessControl,
    AccessControlEnumerable
{
    bytes32 public constant OPERATOR = keccak256("operator");
    bytes32 public constant ADMIN_ROLE = keccak256("admin");
    bytes32 public constant ADMIN_DELEGATE_ROLE = keccak256("admin_delegate");

    /// @notice Creates a new contract.
    /// @param admin Admin of the contract
    constructor(address admin) {
        if (admin == address(0)) revert AddressZero();

        _grantRole(OPERATOR, admin);
        _grantRole(ADMIN_ROLE, admin);

        _setRoleAdmin(ADMIN_ROLE, ADMIN_ROLE);
        _setRoleAdmin(ADMIN_DELEGATE_ROLE, ADMIN_ROLE);
        _setRoleAdmin(OPERATOR, ADMIN_DELEGATE_ROLE);
    }

    /// @inheritdoc IDefaultAccessControl
    function isAdmin(address sender) public view returns (bool) {
        return
            hasRole(ADMIN_ROLE, sender) || hasRole(ADMIN_DELEGATE_ROLE, sender);
    }

    /// @inheritdoc IDefaultAccessControl
    function isOperator(address sender) public view returns (bool) {
        return hasRole(OPERATOR, sender);
    }

    /// @inheritdoc IDefaultAccessControl
    function requireAdmin(address sender) external view override {
        _requireAdmin(sender);
    }

    /// @inheritdoc IDefaultAccessControl
    function requireAtLeastOperator(address sender) external view override {
        _requireAtLeastOperator(sender);
    }

    function _requireAdmin(address sender) internal view {
        if (!isAdmin(sender)) revert Forbidden();
    }

    function _requireAtLeastOperator(address sender) internal view {
        if (!isAdmin(sender) && !isOperator(sender)) revert Forbidden();
    }

    function _requireAdmin() internal view {
        _requireAdmin(msg.sender);
    }

    function _requireAtLeastOperator() internal view {
        _requireAtLeastOperator(msg.sender);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**
 * @title IDepositCallback
 * @notice Interface defining a callback function to handle deposit results.
 */
interface IDepositCallback {
    /**
     * @notice Handles the callback after a deposit operation has been executed.
     * @param actualAmounts An array representing the actual amounts of each token that were deposited.
     * @param lpAmount The total amount of LP tokens that were issued as a result of the deposit.
     * @dev This function is intended to be implemented by contracts that need to take further action following a deposit.
     */
    function depositCallback(
        uint256[] memory actualAmounts,
        uint256 lpAmount
    ) external;
}

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import "../ITvlModule.sol";
import "../../IVault.sol";

/**
 * @title IManagedTvlModule
 * @notice Interface defining methods for a managed Total Value Locked (TVL) Module,
 * allowing setting and retrieving parameters for specific vaults.
 */
interface IERC20TvlModule is ITvlModule {
    /**
     * @notice Calculates the Total Value Locked (TVL) of a vault holding ERC20 tokens.
     * @param vault The address of the vault for which to calculate the TVL.
     * @return data An array of TVL data for each underlying token held by the vault.
     * @dev The TVL data includes information such as token address, underlying token address,
     *      token balance, and underlying token balance.
     *      This function should be implemented to accurately calculate the TVL of the vault.
     *      It should not be callable via delegate calls.
     */
    function tvl(address vault) external view returns (Data[] memory data);
}

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

import "@openzeppelin/contracts/utils/math/Math.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "../../external/symbiotic/IDefaultBond.sol";

// Interface declaration for Default Bond Module
interface IDefaultBondModule {
    /**
     * @notice Deposits a specified amount of tokens into a bond contract.
     * @param bond Address of the bond contract.
     * @param amount Amount of tokens to deposit.
     * @return The amount of tokens deposited.
     */
    function deposit(address bond, uint256 amount) external returns (uint256);

    /**
     * @notice Withdraws a specified amount of tokens from a bond contract.
     * @param bond Address of the bond contract.
     * @param amount Amount of tokens to withdraw.
     * @return The amount of tokens withdrawn.
     */
    function withdraw(address bond, uint256 amount) external returns (uint256);

    /**
     * @notice Emitted when tokens are deposited into a bond.
     * @param bond The address of the bond contract.
     * @param amount The amount of tokens deposited.
     * @param timestamp Timestamp of the deposit.
     */
    event DefaultBondModuleDeposit(
        address indexed bond,
        uint256 amount,
        uint256 timestamp
    );

    /**
     * @notice Emitted when tokens are withdrawn from a bond.
     * @param bond The address of the bond contract.
     * @param amount The amount of tokens withdrawn.
     */
    event DefaultBondModuleWithdraw(address indexed bond, uint256 amount);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/extensions/AccessControlEnumerable.sol)

pragma solidity ^0.8.20;

import {IAccessControlEnumerable} from "./IAccessControlEnumerable.sol";
import {AccessControl} from "../AccessControl.sol";
import {EnumerableSet} from "../../utils/structs/EnumerableSet.sol";

/**
 * @dev Extension of {AccessControl} that allows enumerating the members of each role.
 */
abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {
    using EnumerableSet for EnumerableSet.AddressSet;

    mapping(bytes32 role => EnumerableSet.AddressSet) private _roleMembers;

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

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view virtual returns (address) {
        return _roleMembers[role].at(index);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view virtual returns (uint256) {
        return _roleMembers[role].length();
    }

    /**
     * @dev Overload {AccessControl-_grantRole} to track enumerable memberships
     */
    function _grantRole(bytes32 role, address account) internal virtual override returns (bool) {
        bool granted = super._grantRole(role, account);
        if (granted) {
            _roleMembers[role].add(account);
        }
        return granted;
    }

    /**
     * @dev Overload {AccessControl-_revokeRole} to track enumerable memberships
     */
    function _revokeRole(bytes32 role, address account) internal virtual override returns (bool) {
        bool revoked = super._revokeRole(role, account);
        if (revoked) {
            _roleMembers[role].remove(account);
        }
        return revoked;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import "@openzeppelin/contracts/access/extensions/IAccessControlEnumerable.sol";

/// @notice This is a default access control with 3 roles:
///
/// - ADMIN: allowed to do anything
/// - ADMIN_DELEGATE: allowed to do anything except assigning ADMIN and ADMIN_DELEGATE roles
/// - OPERATOR: low-privileged role, generally keeper or some other bot
interface IDefaultAccessControl is IAccessControlEnumerable {
    error Forbidden();
    error AddressZero();

    function OPERATOR() external view returns (bytes32);

    function ADMIN_ROLE() external view returns (bytes32);

    function ADMIN_DELEGATE_ROLE() external view returns (bytes32);

    /// @notice Checks that the address is contract admin.
    /// @param who Address to check
    /// @return `true` if who is admin, `false` otherwise
    function isAdmin(address who) external view returns (bool);

    /// @notice Checks that the address is contract admin.
    /// @param who Address to check
    /// @return `true` if who is operator, `false` otherwise
    function isOperator(address who) external view returns (bool);

    /// @notice Checks that the address is contract admin.
    /// @param who Address to check
    /// @dev throws Forbbiden() if the sender does not have the admin or admin_delegate role
    function requireAdmin(address who) external view;

    /// @notice Checks that the address is contract admin.
    /// @param who Address to check
    /// @dev throws Forbbiden() if the sender has no roles
    function requireAtLeastOperator(address who) external view;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

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

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

/**
 * @title ITvlModule
 * @notice Interface for a Total Value Locked (TVL) module, providing information about token balances.
 */
interface ITvlModule {
    // Structure representing TVL data for a token
    struct Data {
        address token; // Address of the token
        address underlyingToken; // Address of the underlying token
        uint256 amount; // Current amount of the token
        uint256 underlyingAmount; // Current amount of the underlying token
        bool isDebt; // Flag indicating if the token represents debt
    }

    /**
     * @notice Returns Total Value Locked (TVL) data for a specific user.
     * @param user The address of the user.
     * @return data An array of TVL data for each token held by the user.
     */
    function tvl(address user) external view returns (Data[] memory data);
}

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/Arrays.sol";

import "./modules/ITvlModule.sol";
import "./validators/IValidator.sol";

import "./oracles/IPriceOracle.sol";
import "./oracles/IRatiosOracle.sol";

import "./utils/IDepositCallback.sol";
import "./utils/IWithdrawalCallback.sol";

import "./IVaultConfigurator.sol";

/**
 * @title IVault
 * @notice Interface defining core methods, constants, and errors for vault contracts.
 * Includes events, data structures, functions, and permissions required for managing the vault.
 * @dev Main contract of the system managing interactions between users, administrators, and operators.
 *      System parameters are set within the corresponding contract - VaultConfigurator.
 *      Upon deposit, LP tokens are issued to users based on asset valuation by oracles.
 *      Deposits are made through the deposit function, where a deposit can only be made in underlyingTokens and
 *      only at the specified ratiosOracle ratio. Deposits can be paused by setting the isDepositLocked flag.
 *
 *      Withdrawals can occur through two scenarios:
 *          - Regular withdrawal via the registerWithdrawal function and emergency withdrawal via the emergencyWithdraw function.
 *          In a regular withdrawal, the user registers a withdrawal request, after which the operator must perform a series of operations
 *          to ensure there are enough underlyingTokens on the vault's balance to fulfill the user's request. Subsequently, the operator must call
 *          the processWithdrawals function. If a user's request is not processed within the emergencyWithdrawalDelay period, the user can perform an emergency withdrawal.
 *          Note! In this case, the user may receive less funds than entitled by the system, as this function only handles ERC20 tokens in the system.
 *          Therefore, if the system has a base asset that is not represented as an ERC20 token, the corresponding portion of the funds will be lost by the user.
 *
 *      It is assumed that the main system management will occur through calls to delegateModules via delegateCalls on behalf of the operator.
 *      For this to be possible, certain conditions must be met:
 *          - From the validator's perspective, two conditions must be met:
 *              1. The caller must have the right to call the delegateCall function with the corresponding data parameter.
 *              2. The contract itself must be able to call the function on the delegateModule with the specified data.
 *          - From the configurator's perspective, the called module must have the appropriate approval - isDelegateModuleApproved.
 *
 *      If external calls need to be made, the externalCall function is used, for the execution of which a similar set of properties exists:
 *          - From the validator's perspective, two conditions must be met:
 *              1. The caller must have the right to call the externalCall function with the corresponding data parameter.
 *              2. The contract itself must be able to call the function on the external contract with the specified data.
 *          - From the configurator's perspective, the called contract must NOT have isDelegateModuleApproved permission.
 *
 *      Vault also has the functionality of adding and removing underlyingTokens, as well as tvlModules.
 *      For this purpose, the following functions are available, which can only be called by the vault's admin:
 *          - addToken
 *          - removeToken
 *          - addTvlModule
 *          - removeTvlModule
 *      Upon calling removeToken, it is checked that the underlyingTvl function for the specified token returns a zero value. Otherwise, the function reverts with a NonZeroValue error.
 *      It is important to note that there is no such check when calling removeTvlModule, so when updating parameters, sequential execution of a transaction to remove the old and add the new tvlModule is implied.
 */
interface IVault is IERC20 {
    /// @dev Errors
    error Deadline();
    error InvalidState();
    error InvalidLength();
    error InvalidToken();
    error NonZeroValue();
    error ValueZero();
    error InsufficientLpAmount();
    error InsufficientAmount();
    error LimitOverflow();
    error AlreadyAdded();

    /// @notice Struct representing a user's withdrawal request.
    struct WithdrawalRequest {
        address to;
        uint256 lpAmount;
        bytes32 tokensHash; // keccak256 hash of the tokens array at the moment of request
        uint256[] minAmounts;
        uint256 deadline;
        uint256 timestamp;
    }

    /// @notice Struct representing the current state used for processing withdrawals.
    struct ProcessWithdrawalsStack {
        address[] tokens;
        uint128[] ratiosX96;
        uint256[] erc20Balances;
        uint256 totalSupply;
        uint256 totalValue;
        uint256 ratiosX96Value;
        uint256 timestamp;
        uint256 feeD9;
        bytes32 tokensHash; // keccak256 hash of the tokens array at the moment of the call
    }

    /// @notice 2^96, used for fixed-point arithmetic
    function Q96() external view returns (uint256);

    /// @notice Multiplier of 1e9
    function D9() external view returns (uint256);

    /// @notice Returns the vault's configurator, which handles permissions and configuration settings.
    /// @return IVaultConfigurator The address of the configurator contract.
    function configurator() external view returns (IVaultConfigurator);

    /// @notice Returns the withdrawal request of a given user.
    /// @param user The address of the user.
    /// @return request The withdrawal request associated with the user.
    function withdrawalRequest(
        address user
    ) external view returns (WithdrawalRequest memory request);

    /// @return count The number of users with pending withdrawal requests.
    function pendingWithdrawersCount() external view returns (uint256 count);

    /// @notice Returns an array of addresses with pending withdrawal requests.
    /// @return users An array of addresses with pending withdrawal requests.
    function pendingWithdrawers()
        external
        view
        returns (address[] memory users);

    /// @notice Returns an array of addresses with pending withdrawal requests.
    /// @param limit The maximum number of users to return.
    /// @param offset The number of users to skip before returning.
    /// @return users An array of addresses with pending withdrawal requests.
    function pendingWithdrawers(
        uint256 limit,
        uint256 offset
    ) external view returns (address[] memory users);

    /// @notice Returns an array of underlying tokens of the vault.
    /// @return underlyinigTokens_ An array of underlying token addresses.
    function underlyingTokens()
        external
        view
        returns (address[] memory underlyinigTokens_);

    /// @notice Checks if a token is an underlying token of the vault.
    /// @return isUnderlyingToken_ true if the token is an underlying token of the vault.
    function isUnderlyingToken(
        address token
    ) external view returns (bool isUnderlyingToken_);

    /// @notice Returns an array of addresses of all TVL modules.
    /// @return tvlModules_ An array of TVL module addresses.
    function tvlModules() external view returns (address[] memory tvlModules_);

    /// @notice Calculates and returns the total value locked (TVL) of the underlying tokens.
    /// @return tokens An array of underlying token addresses.
    /// @return amounts An array of the amounts of each underlying token in the TVL.
    function underlyingTvl()
        external
        view
        returns (address[] memory tokens, uint256[] memory amounts);

    /// @notice Calculates and returns the base TVL (Total Value Locked) across all tokens in the vault.
    /// @return tokens An array of token addresses.
    /// @return amounts An array of the amounts of each token in the base TVL.
    function baseTvl()
        external
        view
        returns (address[] memory tokens, uint256[] memory amounts);

    /// @notice Adds a new token to the list of underlying tokens in the vault.
    /// @dev Only accessible by an admin.
    /// @param token The address of the token to add.
    function addToken(address token) external;

    /// @notice Removes a token from the list of underlying tokens in the vault.
    /// @dev Only accessible by an admin.
    /// @param token The address of the token to remove.
    function removeToken(address token) external;

    /// @notice Adds a new TVL module to the vault.
    /// @dev Only accessible by an admin.
    /// @param module The address of the TVL module to add.
    function addTvlModule(address module) external;

    /// @notice Removes an existing TVL module from the vault.
    /// @dev Only accessible by an admin.
    /// @param module The address of the TVL module to remove.
    function removeTvlModule(address module) external;

    /// @notice Performs an external call to a given address with specified data.
    /// @dev Only operators or admins should call this function. Checks access permissions.
    /// @param to The address to which the call will be made.
    /// @param data The calldata to use for the external call.
    /// @return success Indicates if the call was successful.
    /// @return response The response data from the external call.
    /// @dev Checks permissions using the validator from the configurator.
    function externalCall(
        address to,
        bytes calldata data
    ) external returns (bool success, bytes memory response);

    /// @notice Executes a delegate call to a specified address with given data.
    /// @dev Only operators or admins should call this function. Checks access permissions.
    /// @param to The address to which the delegate call will be made.
    /// @param data The calldata to use for the delegate call.
    /// @return success Indicates if the delegate call was successful.
    /// @return response The response data from the delegate call.
    /// @dev Checks permissions using the validator from the configurator.
    function delegateCall(
        address to,
        bytes calldata data
    ) external returns (bool success, bytes memory response);

    /// @notice Deposits specified amounts of tokens into the vault in exchange for LP tokens.
    /// @dev Only accessible when deposits are unlocked.
    /// @param to The address to receive LP tokens.
    /// @param amounts An array specifying the amounts for each underlying token.
    /// @param minLpAmount The minimum amount of LP tokens to mint.
    /// @param deadline The time before which the operation must be completed.
    /// @return actualAmounts The actual amounts deposited for each underlying token.
    /// @return lpAmount The amount of LP tokens minted.
    function deposit(
        address to,
        uint256[] memory amounts,
        uint256 minLpAmount,
        uint256 deadline
    ) external returns (uint256[] memory actualAmounts, uint256 lpAmount);

    /// @notice Handles emergency withdrawals, proportionally withdrawing all tokens in the system (not just the underlying).
    /// @dev Transfers tokens based on the user's share of lpAmount / totalSupply.
    /// @param minAmounts An array of minimum amounts expected for each underlying token.
    /// @param deadline The time before which the operation must be completed.
    /// @return actualAmounts The actual amounts withdrawn for each token.
    function emergencyWithdraw(
        uint256[] memory minAmounts,
        uint256 deadline
    ) external returns (uint256[] memory actualAmounts);

    /// @notice Cancels a pending withdrawal request.
    function cancelWithdrawalRequest() external;

    /// @notice Registers a new withdrawal request, optionally closing previous requests.
    /// @param to The address to receive the withdrawn tokens.
    /// @param lpAmount The amount of LP tokens to withdraw.
    /// @param minAmounts An array specifying minimum amounts for each token.
    /// @param deadline The time before which the operation must be completed.
    /// @param requestDeadline The deadline before which the request should be fulfilled.
    /// @param closePrevious Whether to close a previous request if it exists.
    function registerWithdrawal(
        address to,
        uint256 lpAmount,
        uint256[] memory minAmounts,
        uint256 deadline,
        uint256 requestDeadline,
        bool closePrevious
    ) external;

    /// @notice Analyzes a withdrawal request based on the current vault state.
    /// @param s The current state stack to use for analysis.
    /// @param request The withdrawal request to analyze.
    /// @return processingPossible Whether processing is possible based on current vault state.
    /// @return withdrawalPossible Whether the withdrawal can be fulfilled.
    /// @return expectedAmounts The expected amounts to be withdrawn for each token.
    function analyzeRequest(
        ProcessWithdrawalsStack memory s,
        WithdrawalRequest memory request
    )
        external
        pure
        returns (
            bool processingPossible,
            bool withdrawalPossible,
            uint256[] memory expectedAmounts
        );

    /// @notice Calculates and returns the state stack required for processing withdrawal requests.
    /// @return s The state stack with current vault balances and data.
    function calculateStack()
        external
        view
        returns (ProcessWithdrawalsStack memory s);

    /// @notice Processes multiple withdrawal requests by fulfilling eligible withdrawals.
    /// @param users An array of user addresses whose withdrawal requests should be processed.
    /// @return statuses An array indicating the status of each user's withdrawal request.
    function processWithdrawals(
        address[] memory users
    ) external returns (bool[] memory statuses);

    /**
     * @notice Emitted when a token is added to the vault.
     * @param token The address of the token added.
     */
    event TokenAdded(address token);

    /**
     * @notice Emitted when a token is removed from the vault.
     * @param token The address of the token removed.
     */
    event TokenRemoved(address token);

    /**
     * @notice Emitted when a TVL module is added to the vault.
     * @param module The address of the TVL module added.
     */
    event TvlModuleAdded(address module);

    /**
     * @notice Emitted when a TVL module is removed from the vault.
     * @param module The address of the TVL module removed.
     */
    event TvlModuleRemoved(address module);

    /**
     * @notice Emitted when an external call is made.
     * @param to The address of the contract called.
     * @param data The calldata of the call.
     * @param success The success status of the call.
     * @param response The response data of the call.
     */
    event ExternalCall(
        address indexed to,
        bytes data,
        bool success,
        bytes response
    );

    /**
     * @notice Emitted when a delegate call is made.
     * @param to The address of the contract called.
     * @param data The calldata of the call.
     * @param success The success status of the call.
     * @param response The response data of the call.
     */
    event DelegateCall(
        address indexed to,
        bytes data,
        bool success,
        bytes response
    );

    /**
     * @notice Emitted when a deposit occurs.
     * @param to The address where LP tokens are deposited.
     * @param amounts The amounts of tokens deposited.
     * @param lpAmount The amount of LP tokens minted.
     */
    event Deposit(address indexed to, uint256[] amounts, uint256 lpAmount);

    /**
     * @notice Emitted when a deposit callback occurs.
     * @param callback The address of the deposit callback contract.
     * @param amounts The amounts of tokens deposited.
     * @param lpAmount The amount of LP tokens minted.
     */
    event DepositCallback(
        address indexed callback,
        uint256[] amounts,
        uint256 lpAmount
    );

    /**
     * @notice Emitted when a withdrawal request is made.
     * @param from The address of the user making the request.
     * @param request The details of the withdrawal request.
     */
    event WithdrawalRequested(address indexed from, WithdrawalRequest request);

    /**
     * @notice Emitted when a withdrawal request is canceled.
     * @param user The address of the user canceling the request.
     * @param origin The origin of the cancellation.
     */
    event WithdrawalRequestCanceled(address indexed user, address origin);

    /**
     * @notice Emitted when an emergency withdrawal occurs.
     * @param from The address of the user initiating the emergency withdrawal.
     * @param request The details of the withdrawal request.
     * @param amounts The actual amounts withdrawn.
     */
    event EmergencyWithdrawal(
        address indexed from,
        WithdrawalRequest request,
        uint256[] amounts
    );

    /**
     * @notice Emitted when withdrawals are processed.
     * @param users The addresses of the users whose withdrawals are processed.
     * @param statuses The statuses of the withdrawal processing.
     */
    event WithdrawalsProcessed(address[] users, bool[] statuses);

    /**
     * @notice Emitted when a withdrawal callback occurs.
     * @param callback The address of the withdrawal callback contract.
     */
    event WithdrawCallback(address indexed callback);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

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

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

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

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

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

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

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

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

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

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

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../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 An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, 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);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @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.encodeCall(token.approve, (spender, value));

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

    /**
     * @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);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

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

interface IDefaultBond is IBond {
    error InsufficientDeposit();
    error InsufficientWithdraw();
    error InsufficientIssueDebt();

    /**
     * @notice Deposit a given amount of the underlying asset, and mint the bond to a particular recipient.
     * @param recipient address of the bond's recipient
     * @param amount amount of the underlying asset
     * @return amount of the bond minted
     */
    function deposit(
        address recipient,
        uint256 amount
    ) external returns (uint256);

    /**
     * @notice Deposit a given amount of the underlying asset using a permit functionality, and mint the bond to a particular recipient.
     * @param recipient address of the bond's recipient
     * @param amount amount of the underlying asset
     * @param deadline timestamp of the signature's deadline
     * @param v v component of the signature
     * @param r r component of the signature
     * @param s s component of the signature
     * @return amount of the bond minted
     */
    function deposit(
        address recipient,
        uint256 amount,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256);

    /**
     * @notice Withdraw a given amount of the underlying asset, and transfer it to a particular recipient.
     * @param recipient address of the underlying asset's recipient
     * @param amount amount of the underlying asset
     */
    function withdraw(address recipient, uint256 amount) external;

    function limit() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/extensions/IAccessControlEnumerable.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
 */
interface IAccessControlEnumerable is IAccessControl {
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) external view returns (address);

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {ERC165} from "../utils/introspection/ERC165.sol";

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

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

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

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

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

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

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

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

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

        _revokeRole(role, callerConfirmation);
    }

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

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        if (!hasRole(role, account)) {
            _roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        if (hasRole(role, account)) {
            _roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

                // Move the lastValue to the index where the value to delete is
                set._values[valueIndex] = lastValue;
                // Update the tracked position of the lastValue (that was just moved)
                set._positions[lastValue] = position;
            }

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

            // Delete the tracked position for the deleted slot
            delete set._positions[value];

            return true;
        } else {
            return false;
        }
    }

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

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

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

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

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.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}.
 *
 * 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.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => 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 returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual 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 returns (uint8) {
        return 18;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual 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 `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` 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 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        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 `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` 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.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` 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.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @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;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    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
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // 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 v5.0.0) (utils/Arrays.sol)

pragma solidity ^0.8.20;

import {StorageSlot} from "./StorageSlot.sol";
import {Math} from "./math/Math.sol";

/**
 * @dev Collection of functions related to array types.
 */
library Arrays {
    using StorageSlot for bytes32;

    /**
     * @dev Searches a sorted `array` and returns the first index that contains
     * a value greater or equal to `element`. If no such index exists (i.e. all
     * values in the array are strictly less than `element`), the array length is
     * returned. Time complexity O(log n).
     *
     * `array` is expected to be sorted in ascending order, and to contain no
     * repeated elements.
     */
    function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) {
        uint256 low = 0;
        uint256 high = array.length;

        if (high == 0) {
            return 0;
        }

        while (low < high) {
            uint256 mid = Math.average(low, high);

            // Note that mid will always be strictly less than high (i.e. it will be a valid array index)
            // because Math.average rounds towards zero (it does integer division with truncation).
            if (unsafeAccess(array, mid).value > element) {
                high = mid;
            } else {
                low = mid + 1;
            }
        }

        // At this point `low` is the exclusive upper bound. We will return the inclusive upper bound.
        if (low > 0 && unsafeAccess(array, low - 1).value == element) {
            return low - 1;
        } else {
            return low;
        }
    }

    /**
     * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check.
     *
     * WARNING: Only use if you are certain `pos` is lower than the array length.
     */
    function unsafeAccess(address[] storage arr, uint256 pos) internal pure returns (StorageSlot.AddressSlot storage) {
        bytes32 slot;
        // We use assembly to calculate the storage slot of the element at index `pos` of the dynamic array `arr`
        // following https://docs.soliditylang.org/en/v0.8.20/internals/layout_in_storage.html#mappings-and-dynamic-arrays.

        /// @solidity memory-safe-assembly
        assembly {
            mstore(0, arr.slot)
            slot := add(keccak256(0, 0x20), pos)
        }
        return slot.getAddressSlot();
    }

    /**
     * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check.
     *
     * WARNING: Only use if you are certain `pos` is lower than the array length.
     */
    function unsafeAccess(bytes32[] storage arr, uint256 pos) internal pure returns (StorageSlot.Bytes32Slot storage) {
        bytes32 slot;
        // We use assembly to calculate the storage slot of the element at index `pos` of the dynamic array `arr`
        // following https://docs.soliditylang.org/en/v0.8.20/internals/layout_in_storage.html#mappings-and-dynamic-arrays.

        /// @solidity memory-safe-assembly
        assembly {
            mstore(0, arr.slot)
            slot := add(keccak256(0, 0x20), pos)
        }
        return slot.getBytes32Slot();
    }

    /**
     * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check.
     *
     * WARNING: Only use if you are certain `pos` is lower than the array length.
     */
    function unsafeAccess(uint256[] storage arr, uint256 pos) internal pure returns (StorageSlot.Uint256Slot storage) {
        bytes32 slot;
        // We use assembly to calculate the storage slot of the element at index `pos` of the dynamic array `arr`
        // following https://docs.soliditylang.org/en/v0.8.20/internals/layout_in_storage.html#mappings-and-dynamic-arrays.

        /// @solidity memory-safe-assembly
        assembly {
            mstore(0, arr.slot)
            slot := add(keccak256(0, 0x20), pos)
        }
        return slot.getUint256Slot();
    }

    /**
     * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check.
     *
     * WARNING: Only use if you are certain `pos` is lower than the array length.
     */
    function unsafeMemoryAccess(uint256[] memory arr, uint256 pos) internal pure returns (uint256 res) {
        assembly {
            res := mload(add(add(arr, 0x20), mul(pos, 0x20)))
        }
    }

    /**
     * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check.
     *
     * WARNING: Only use if you are certain `pos` is lower than the array length.
     */
    function unsafeMemoryAccess(address[] memory arr, uint256 pos) internal pure returns (address res) {
        assembly {
            res := mload(add(add(arr, 0x20), mul(pos, 0x20)))
        }
    }
}

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

/**
 * @title IValidator
 * @notice Interface defining a generic validator for transaction data.
 */
interface IValidator {
    /**
     * @notice Validates a transaction involving two addresses based on the provided calldata.
     * @param from The address initiating the transaction.
     * @param to The target address of the transaction.
     * @param data The transaction data containing the function selector and any necessary parameters.
     * @dev Implementers should validate that the transaction is authorized, properly formatted, and adheres to the required business logic.
     *      Reverts if the transaction is invalid.
     */
    function validate(
        address from,
        address to,
        bytes calldata data
    ) external view;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;

/**
 * @title IPriceOracle
 * @notice Interface defining a standard price oracle that provides token prices in 96-bit precision.
 */
interface IPriceOracle {
    /**
     * @notice Returns the price of a specific token relative to the base token of the given vault, expressed in 96-bit precision.
     * @param vault The address of the vault requesting the price.
     * @param token The address of the token to calculate the price for.
     * @return priceX96_ The price of the token relative to the base token, using 96-bit precision.
     * @dev Implementations should ensure prices are accurate and may involve external oracle data.
     *      Reverts with an appropriate error if the price cannot be provided.
     */
    function priceX96(
        address vault,
        address token
    ) external view returns (uint256 priceX96_);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;

/**
 * @title IRatiosOracle
 * @notice Interface for a ratios oracle, providing the target allocation ratios for a vault.
 */
interface IRatiosOracle {
    /**
     * @notice Retrieves the target allocation ratios (using 96-bit precision) for a specific vault's tokens.
     * @param vault The address of the vault requesting the ratios.
     * @param isDeposit A boolean indicating whether the ratios are for a deposit or a withdrawal.
     * @return ratiosX96 An array representing the target ratios for each token, expressed in 96-bit precision.
     * @dev The array of ratios should align with the underlying tokens associated with the vault.
     *      Reverts if the ratios cannot be provided due to missing or mismatched data.
     */
    function getTargetRatiosX96(
        address vault,
        bool isDeposit
    ) external view returns (uint128[] memory ratiosX96);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**
 * @title IWithdrawalCallback
 * @notice Interface defining a callback function to handle post-withdrawal actions in processWithdrawals function.
 */
interface IWithdrawalCallback {
    /**
     * @notice Handles the callback after a withdrawal operation has been executed.
     * @dev This function should be implemented to carry out any additional actions required after the withdrawal.
     *      It does not take any parameters and will be invoked once the withdrawal process is complete.
     */
    function withdrawalCallback() external;
}

// SPDX-License-Identifier: BSL-1.1
pragma solidity 0.8.25;

import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "./IVault.sol";

/**
 * @title IVaultConfigurator
 * @notice Contract defining the configuration and access control for a vault system.
 *         This interface specifies the parameters for the primary Vault contract,
 *         facilitating secure configuration updates through a two-stage process: staging and committing, with each parameter update subject to a specified delay.
 *         The stage function sets the new value and timestamp for the parameter, while the commit function finalizes the update
 *
 *         The delay parameter is expressed in seconds and is defined for each parameter of this contract as follows:
 *            - baseDelay: the base delay for stage/commit operations
 *            - depositCallbackDelay: delay for changing the deposit callback contract address
 *            - withdrawalCallbackDelay: delay for changing the withdrawal callback contract address
 *            - withdrawalFeeD9Delay: delay for changing the withdrawal fee
 *            - isDepositLockedDelay: delay for locking deposits
 *            - areTransfersLockedDelay: delay for locking LP token transfers
 *            - delegateModuleApprovalDelay: delay for approving delegated modules
 *            - maximalTotalSupplyDelay: delay for changing the maximum total supply
 *            - ratiosOracleDelay: delay for changing the ratios oracle address
 *            - priceOracleDelay: delay for changing the price oracle address
 *            - validatorDelay: delay for changing the validator address
 *            - emergencyWithdrawalDelay: delay for withdrawing funds after calling registerWithdrawal
 *
 *         Each of the above parameters has a pair of functions, stage/commit, through which their updates occur. The delay for all these parameters is set to baseDelay.
 *
 *         With the exception of functions for isDepositLocked parameter, all mutable functions of the contract can only be called by the vault's admin.
 *         Function for isDepositLocked parameter can be called by either the operator or the vault's admin
 *         to enable faster deposit locking if deemed necessary from the operator/strategy standpoint.
 */
interface IVaultConfigurator {
    /// @dev Errors
    error AddressZero();
    error InvalidDelay();
    error InvalidTimestamp();
    error InvalidWithdrawalFee();
    error InvalidTotalSupply();

    /// @notice Struct to represent a staged data change with a delay period.
    struct Data {
        uint256 value; // Current value
        uint256 stagedValue; // Staged value waiting to be committed
        uint256 stageTimestamp; // Timestamp of staging
    }

    /// @notice Returns the maximum allowed delay for any staged data.
    /// @return uint256 The constant `MAX_DELAY` indicating the maximum delay period (365 days).
    function MAX_DELAY() external pure returns (uint256);

    /// @notice Returns the maximum withdrawal fee allowed.
    /// @return uint256 The constant `MAX_WITHDRAWAL_FEE` indicating the maximum withdrawal fee (5%).
    function MAX_WITHDRAWAL_FEE() external pure returns (uint256);

    /// @notice Returns the address of the vault associated with this configurator.
    /// @return address of the vault contract.
    function vault() external view returns (address);

    ///@notice Stages an approval for the specified delegate module.
    /// @param module The address of the module to approve.
    function stageDelegateModuleApproval(address module) external;

    /// @notice Commits the previously staged delegate module approval after the delay period.
    /// @param module The address of the module to approve.
    function commitDelegateModuleApproval(address module) external;

    /// @notice Rolls back any staged delegate module approval.
    /// @param module The address of the module to roll back.
    function rollbackStagedDelegateModuleApproval(address module) external;

    /// @notice @notice Revokes the approval of the specified delegate module.
    /// @param module The address of the module to revoke approval from.
    function revokeDelegateModuleApproval(address module) external;

    /// @notice Returns the base delay value for all staging operations.
    /// @return uint256 The base delay value in seconds.
    function baseDelay() external view returns (uint256);

    /// @notice Checks if the specified delegate module is approved for use.
    /// @param module The address of the module to check.
    /// @return bool `true` if the module is approved, otherwise `false`.
    function isDelegateModuleApproved(
        address module
    ) external view returns (bool);

    /// @notice Returns whether deposits are currently locked.
    /// @notice operator owned parameter.
    /// @return bool `true` if deposits are locked, otherwise `false`.
    function isDepositLocked() external view returns (bool);

    /// @notice Returns whether LP token transfers are currently locked.
    /// @notice admin owned parameter.
    /// @return bool `true` if transfers are locked, otherwise `false`.
    function areTransfersLocked() external view returns (bool);

    /// @notice Returns the maximum total supply of LP tokens allowed.
    /// @return uint256 The maximum total supply of LP tokens.
    function maximalTotalSupply() external view returns (uint256);

    /// @notice Returns the address of the deposit callback contract.
    /// @return address The address of the deposit callback contract.
    function depositCallback() external view returns (address);

    /// @notice Returns the address of the withdrawal callback contract.
    /// @return address The address of the withdrawal callback contract.
    function withdrawalCallback() external view returns (address);

    /// @notice Returns the current withdrawal fee in D9 format.
    /// @return uint256 The withdrawal fee, represented as an integer with 9 decimal places.
    function withdrawalFeeD9() external view returns (uint256);

    /// @notice Returns the delay for committing deposit callback changes.
    /// @return uint256 The delay in seconds.
    function depositCallbackDelay() external view returns (uint256);

    /// @notice Returns the delay for committing withdrawal callback changes.
    /// @return uint256 The delay in seconds.
    function withdrawalCallbackDelay() external view returns (uint256);

    /// @notice Returns the delay for committing withdrawal fee changes.
    /// @return uint256 The delay in seconds.
    function withdrawalFeeD9Delay() external view returns (uint256);

    /// @notice Returns the delay for committing deposit locks.
    /// @return uint256 The delay in seconds.
    function isDepositLockedDelay() external view returns (uint256);

    /// @notice Returns the delay for committing transfers locks.
    /// @return uint256 The delay in seconds.
    function areTransfersLockedDelay() external view returns (uint256);

    /// @notice Returns the delay for committing delegate module approvals.
    /// @return uint256 The delay in seconds.
    function delegateModuleApprovalDelay() external view returns (uint256);

    /// @notice Returns the delay for committing maximum total supply changes.
    /// @return uint256 The delay in seconds.
    function maximalTotalSupplyDelay() external view returns (uint256);

    /// @notice Returns the address of the ratios oracle.
    /// @return address The address of the ratios oracle.
    function ratiosOracle() external view returns (address);

    /// @notice Returns the address of the price oracle.
    /// @return address The address of the price oracle.
    function priceOracle() external view returns (address);

    /// @notice Returns the address of the validator.
    /// @return address The address of the validator.
    function validator() external view returns (address);

    /// @notice Returns the delay for committing validator changes.
    /// @return uint256 The delay in seconds.
    function validatorDelay() external view returns (uint256);

    /// @notice Returns the delay for committing price oracle changes.
    /// @return uint256 The delay in seconds.
    function priceOracleDelay() external view returns (uint256);

    /// @notice Returns the delay for committing ratios oracle changes.
    /// @return uint256 The delay in seconds.
    function ratiosOracleDelay() external view returns (uint256);

    /// @notice Returns the delay required between calling `registerWithdrawal` and being able to perform an emergency withdrawal for that request.
    /// @return uint256 The minimum delay time, in seconds, that a user must wait after calling `registerWithdrawal` before executing an emergency withdrawal.
    function emergencyWithdrawalDelay() external view returns (uint256);

    /// @notice Stages the deposits lock by setting a staged value and timestamp.
    function stageDepositsLock() external;

    /// @notice Commits the previously staged deposits lock after the delay period.
    function commitDepositsLock() external;

    /// @notice Rolls back any staged deposits lock.
    function rollbackStagedDepositsLock() external;

    /// @notice Revokes the current deposits lock, unlocking deposits.
    function revokeDepositsLock() external;

    /// @notice Stages the transfers lock by setting a staged value and timestamp.
    /// @param flag The new value to stage.
    function stageTransfersLock(bool flag) external;

    /// @notice Commits the previously staged transfers lock after the delay period.
    function commitTransfersLock() external;

    /// @notice Rolls back any staged transfers lock.
    function rollbackStagedTransfersLock() external;

    /// @notice Stages the maximum total supply with a staged value and timestamp.
    /// @param maximalTotalSupply_ The maximum total supply to stage.
    function stageMaximalTotalSupply(uint256 maximalTotalSupply_) external;

    /// @notice Commits the previously staged maximum total supply after the delay period.
    function commitMaximalTotalSupply() external;

    /// @notice Rolls back any staged maximum total supply changes.
    function rollbackStagedMaximalTotalSupply() external;

    /// @notice Stages a new deposit callback address.
    /// @param callback The address of the new deposit callback contract.
    function stageDepositCallback(address callback) external;

    /// @notice Commits the previously staged deposit callback address after the delay period.
    function commitDepositCallback() external;

    /// @notice Rolls back any staged deposit callback changes.
    function rollbackStagedDepositCallback() external;

    /// @notice Stages a new withdrawal callback address.
    /// @param callback The address of the new withdrawal callback contract.
    function stageWithdrawalCallback(address callback) external;

    /// @notice Commits the previously staged withdrawal callback address after the delay period.
    function commitWithdrawalCallback() external;

    /// @notice Rolls back any staged withdrawal callback changes.
    function rollbackStagedWithdrawalCallback() external;

    /// @notice Stages a new withdrawal fee in D9 format.
    /// @param feeD9 The new withdrawal fee in D9 format.
    function stageWithdrawalFeeD9(uint256 feeD9) external;

    /// @notice Commits the previously staged withdrawal fee after the delay period.
    function commitWithdrawalFeeD9() external;

    /// @notice Rolls back any staged withdrawal fee changes.
    function rollbackStagedWithdrawalFeeD9() external;

    /// @notice Stages a base delay value.
    /// @param delay_ The base delay value to stage.
    function stageBaseDelay(uint256 delay_) external;

    /// @notice Commits the previously staged base delay after the delay period.
    function commitBaseDelay() external;

    /// @notice Rolls back any staged base delay changes.
    function rollbackStagedBaseDelay() external;

    /// @notice Stages a delay value for the deposit callback.
    /// @param delay_ The delay value to stage.
    function stageDepositCallbackDelay(uint256 delay_) external;

    /// @notice Commits the previously staged deposit callback delay after the delay period.
    function commitDepositCallbackDelay() external;

    /// @notice Rolls back any staged deposit callback delay changes.
    function rollbackStagedDepositCallbackDelay() external;

    /// @notice Stages a delay value for the withdrawal callback.
    /// @param delay_ The delay value to stage.
    function stageWithdrawalCallbackDelay(uint256 delay_) external;

    /// @notice Commits the previously staged withdrawal callback delay after the delay period.
    function commitWithdrawalCallbackDelay() external;

    /// @notice Rolls back any staged withdrawal callback delay changes.
    function rollbackStagedWithdrawalCallbackDelay() external;

    /// @notice Stages a delay value for the withdrawal fee in D9 format.
    /// @param delay_ The delay value to stage.
    function stageWithdrawalFeeD9Delay(uint256 delay_) external;

    /// @notice Commits the previously staged withdrawal fee delay after the delay period.
    function commitWithdrawalFeeD9Delay() external;

    /// @notice Rolls back any staged withdrawal fee delay changes.
    function rollbackStagedWithdrawalFeeD9Delay() external;

    /// @notice Stages a delay value for locking deposits.
    /// @param delay_ The delay value to stage.
    function stageDepositsLockedDelay(uint256 delay_) external;

    /// @notice Commits the previously staged deposits lock delay after the delay period.
    function commitDepositsLockedDelay() external;

    /// @notice Rolls back any staged deposits lock delay changes.
    function rollbackStagedDepositsLockedDelay() external;

    /// @notice Stages a delay value for locking transfers.
    /// @param delay_ The delay value to stage.
    function stageTransfersLockedDelay(uint256 delay_) external;

    /// @notice Commits the previously staged transfers lock delay after the delay period.
    function commitTransfersLockedDelay() external;

    /// @notice Rolls back any staged transfers lock delay changes.
    function rollbackStagedTransfersLockedDelay() external;

    /// @notice Stages a delay value for the delegate module approval.
    /// @param delay_ The delay value to stage.
    function stageDelegateModuleApprovalDelay(uint256 delay_) external;

    /// @notice Commits the previously staged delegate module approval delay after the delay period.
    function commitDelegateModuleApprovalDelay() external;

    /// @notice Rolls back any staged delegate module approval delay changes.
    function rollbackStagedDelegateModuleApprovalDelay() external;

    /// @notice Stages a delay value for the maximum total supply.
    /// @param delay_ The delay value to stage.
    function stageMaximalTotalSupplyDelay(uint256 delay_) external;

    /// @notice Commits the previously staged maximum total supply delay after the delay period.
    function commitMaximalTotalSupplyDelay() external;

    /// @notice Rolls back any staged maximum total supply delay changes.
    function rollbackStagedMaximalTotalSupplyDelay() external;

    /// @notice Stages a ratios oracle address.
    /// @param oracle The address of the new ratios oracle.
    function stageRatiosOracle(address oracle) external;

    /// @notice Commits the previously staged ratios oracle after the delay period.
    function commitRatiosOracle() external;

    /// @notice Rolls back any staged ratios oracle changes.
    function rollbackStagedRatiosOracle() external;

    /// @notice Stages a price oracle address.
    /// @param oracle The address of the new price oracle.
    function stagePriceOracle(address oracle) external;

    /// @notice Commits the previously staged price oracle after the delay period.
    function commitPriceOracle() external;

    /// @notice Rolls back any staged price oracle changes.
    function rollbackStagedPriceOracle() external;

    /// @notice Stages a validator address.
    /// @param validator_ The address of the new validator.
    function stageValidator(address validator_) external;

    /// @notice Commits the previously staged validator after the delay period.
    function commitValidator() external;

    /// @notice Rolls back any staged validator changes.
    function rollbackStagedValidator() external;

    /// @notice Stages a delay value for the validator.
    /// @param delay_ The delay value to stage.
    function stageValidatorDelay(uint256 delay_) external;

    /// @notice Commits the previously staged validator delay after the delay period.
    function commitValidatorDelay() external;

    /// @notice Rolls back any staged validator delay changes.
    function rollbackStagedValidatorDelay() external;

    /// @notice Stages a delay value for the price oracle.
    /// @param delay_ The delay value to stage.
    function stagePriceOracleDelay(uint256 delay_) external;

    /// @notice Commits the previously staged price oracle delay after the delay period.
    function commitPriceOracleDelay() external;

    /// @notice Rolls back any staged price oracle delay changes.
    function rollbackStagedPriceOracleDelay() external;

    /// @notice Stages a delay value for the ratios oracle.
    /// @param delay_ The delay value to stage.
    function stageRatiosOracleDelay(uint256 delay_) external;

    /// @notice Commits the previously staged ratios oracle delay after the delay period.
    function commitRatiosOracleDelay() external;

    /// @notice Rolls back any staged ratios oracle delay changes.
    function rollbackStagedRatiosOracleDelay() external;

    /// @notice Stages a delay value for emergency withdrawals.
    /// @param delay_ The delay value to stage.
    function stageEmergencyWithdrawalDelay(uint256 delay_) external;

    /// @notice Commits the previously staged emergency withdrawal delay.
    function commitEmergencyWithdrawalDelay() external;

    /// @notice Rolls back any staged emergency withdrawal delay changes.
    function rollbackStagedEmergencyWithdrawalDelay() external;

    /// @dev Emitted when a value is staged for future commitment for given slot.
    event Stage(
        bytes32 indexed slot,
        Data indexed data,
        uint256 value,
        uint256 timestamp
    );

    /// @dev Emitted when a staged value is committed and updated for given slot.
    event Commit(bytes32 indexed slot, Data indexed data, uint256 timestamp);

    /// @dev Emitted when a staged value is rolled back without commitment for given slot.
    event Rollback(bytes32 indexed slot, Data indexed data, uint256 timestamp);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @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.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
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].
     *
     * CAUTION: See Security Considerations above.
     */
    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 v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) 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 FailedInnerCall();
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

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

interface IBond is IERC20 {
    /**
     * @notice Emitted when debt is issued.
     * @param issuer address of the debt's issuer
     * @param recipient address that should receive the underlying asset
     * @param debtIssued amount of the debt issued
     */
    event IssueDebt(
        address indexed issuer,
        address indexed recipient,
        uint256 debtIssued
    );

    /**
     * @notice Emitted when debt is repaid.
     * @param issuer address of the debt's issuer
     * @param recipient address that received the underlying asset
     * @param debtRepaid amount of the debt repaid
     */
    event RepayDebt(
        address indexed issuer,
        address indexed recipient,
        uint256 debtRepaid
    );

    /**
     * @notice Get the bond's underlying asset.
     * @return asset address of the underlying asset
     */
    function asset() external view returns (address);

    /**
     * @notice Get a total amount of repaid debt.
     * @return total repaid debt
     */
    function totalRepaidDebt() external view returns (uint256);

    /**
     * @notice Get an amount of repaid debt created by a particular issuer.
     * @param issuer address of the debt's issuer
     * @return particular issuer's repaid debt
     */
    function issuerRepaidDebt(address issuer) external view returns (uint256);

    /**
     * @notice Get an amount of repaid debt to a particular recipient.
     * @param recipient address that received the underlying asset
     * @return particular recipient's repaid debt
     */
    function recipientRepaidDebt(
        address recipient
    ) external view returns (uint256);

    /**
     * @notice Get an amount of repaid debt for a particular issuer-recipient pair.
     * @param issuer address of the debt's issuer
     * @param recipient address that received the underlying asset
     * @return particular pair's repaid debt
     */
    function repaidDebt(
        address issuer,
        address recipient
    ) external view returns (uint256);

    /**
     * @notice Get a total amount of debt.
     * @return total debt
     */
    function totalDebt() external view returns (uint256);

    /**
     * @notice Get a current debt created by a particular issuer.
     * @param issuer address of the debt's issuer
     * @return particular issuer's debt
     */
    function issuerDebt(address issuer) external view returns (uint256);

    /**
     * @notice Get a current debt to a particular recipient.
     * @param recipient address that should receive the underlying asset
     * @return particular recipient's debt
     */
    function recipientDebt(address recipient) external view returns (uint256);

    /**
     * @notice Get a current debt for a particular issuer-recipient pair.
     * @param issuer address of the debt's issuer
     * @param recipient address that should receive the underlying asset
     * @return particular pair's debt
     */
    function debt(
        address issuer,
        address recipient
    ) external view returns (uint256);

    /**
     * @notice Burn a given amount of the bond, and increase a debt of the underlying asset for the caller.
     * @param recipient address that should receive the underlying asset
     * @param amount amount of the bond
     */
    function issueDebt(address recipient, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
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 v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(newImplementation.code.length > 0);
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

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

{
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200,
    "details": {
      "yul": true,
      "yulDetails": {
        "stackAllocation": true
      }
    }
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IDefaultBondModule","name":"bondModule_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AccessControlBadConfirmation","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bytes32","name":"neededRole","type":"bytes32"}],"name":"AccessControlUnauthorizedAccount","type":"error"},{"inputs":[],"name":"AddressZero","type":"error"},{"inputs":[],"name":"Forbidden","type":"error"},{"inputs":[],"name":"InvalidBond","type":"error"},{"inputs":[],"name":"InvalidCumulativeRatio","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"users","type":"address[]"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"DefaultBondStrategyProcessWithdrawals","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"components":[{"internalType":"address","name":"bond","type":"address"},{"internalType":"uint256","name":"ratioX96","type":"uint256"}],"indexed":false,"internalType":"struct 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IERC20TvlModule","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getRoleMember","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleMemberCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"isAdmin","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"isOperator","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"processAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"users","type":"address[]"}],"name":"processWithdrawals","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"requireAdmin","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"requireAtLeastOperator","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"components":[{"internalType":"address","name":"bond","type":"address"},{"internalType":"uint256","name":"ratioX96","type":"uint256"}],"internalType":"struct IDefaultBondStrategy.Data[]","name":"data","type":"tuple[]"}],"name":"setData","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"tokenToData","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract IVault","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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