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// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.20;

import "@openzeppelin/contracts-5/access/AccessControl.sol";
import "@openzeppelin/contracts-5/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts-5/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts-5/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts-5/utils/Pausable.sol";
import "@openzeppelin/contracts-5/utils/math/Math.sol";

import "contracts/lending/core/interfaces/IAaveOracle.sol";
import "contracts/token/IERC20Stablecoin.sol";
import "./CollateralVault.sol";
import "./AmoManager.sol";
import "./OracleAware.sol";

/**
 * @title IssuerV2
 * @notice Extended issuer responsible for issuing dUSD tokens with asset-level minting overrides and global pause
 */
contract IssuerV2 is AccessControl, OracleAware, ReentrancyGuard, Pausable {
    using SafeERC20 for IERC20Metadata;

    /* Core state */

    IERC20Stablecoin public dusd;
    uint8 public immutable dusdDecimals;
    CollateralVault public collateralVault;
    AmoManager public amoManager;

    /* Events */

    event CollateralVaultSet(address indexed collateralVault);
    event AmoManagerSet(address indexed amoManager);
    event AssetMintingPauseUpdated(address indexed asset, bool paused);

    /* Roles */

    bytes32 public constant AMO_MANAGER_ROLE = keccak256("AMO_MANAGER_ROLE");
    bytes32 public constant INCENTIVES_MANAGER_ROLE =
        keccak256("INCENTIVES_MANAGER_ROLE");
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");

    /* Errors */

    error SlippageTooHigh(uint256 minDUsd, uint256 dusdAmount);
    error IssuanceSurpassesExcessCollateral(
        uint256 collateralInDusd,
        uint256 circulatingDusd
    );
    error MintingToAmoShouldNotIncreaseSupply(
        uint256 circulatingDusdBefore,
        uint256 circulatingDusdAfter
    );
    error AssetMintingPaused(address asset);

    /* Overrides */

    // If true, minting with this collateral asset is paused at the issuer level
    mapping(address => bool) public assetMintingPaused;

    /**
     * @notice Initializes the IssuerV2 contract with core dependencies
     * @param _collateralVault The address of the collateral vault
     * @param _dusd The address of the dUSD stablecoin
     * @param oracle The address of the price oracle
     * @param _amoManager The address of the AMO Manager
     */
    constructor(
        address _collateralVault,
        address _dusd,
        IPriceOracleGetter oracle,
        address _amoManager
    ) OracleAware(oracle, oracle.BASE_CURRENCY_UNIT()) {
        collateralVault = CollateralVault(_collateralVault);
        dusd = IERC20Stablecoin(_dusd);
        dusdDecimals = dusd.decimals();
        amoManager = AmoManager(_amoManager);

        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        grantRole(AMO_MANAGER_ROLE, msg.sender);
        grantRole(INCENTIVES_MANAGER_ROLE, msg.sender);
        grantRole(PAUSER_ROLE, msg.sender);
    }

    /* Issuer */

    /**
     * @notice Issues dUSD tokens in exchange for collateral from the caller
     * @param collateralAmount The amount of collateral to deposit
     * @param collateralAsset The address of the collateral asset
     * @param minDUsd The minimum amount of dUSD to receive, used for slippage protection
     */
    function issue(
        uint256 collateralAmount,
        address collateralAsset,
        uint256 minDUsd
    ) external nonReentrant whenNotPaused {
        // Ensure the collateral asset is supported by the vault before any further processing
        if (!collateralVault.isCollateralSupported(collateralAsset)) {
            revert CollateralVault.UnsupportedCollateral(collateralAsset);
        }

        // Ensure the issuer has not paused this asset for minting
        if (assetMintingPaused[collateralAsset]) {
            revert AssetMintingPaused(collateralAsset);
        }

        uint8 collateralDecimals = IERC20Metadata(collateralAsset).decimals();
        uint256 baseValue = Math.mulDiv(
            oracle.getAssetPrice(collateralAsset),
            collateralAmount,
            10 ** collateralDecimals
        );
        uint256 dusdAmount = baseValueToDusdAmount(baseValue);
        if (dusdAmount < minDUsd) {
            revert SlippageTooHigh(minDUsd, dusdAmount);
        }

        // Transfer collateral directly to vault
        IERC20Metadata(collateralAsset).safeTransferFrom(
            msg.sender,
            address(collateralVault),
            collateralAmount
        );

        dusd.mint(msg.sender, dusdAmount);
    }

    /**
     * @notice Issues dUSD tokens using excess collateral in the system
     * @param receiver The address to receive the minted dUSD tokens
     * @param dusdAmount The amount of dUSD to mint
     */
    function issueUsingExcessCollateral(
        address receiver,
        uint256 dusdAmount
    ) external onlyRole(INCENTIVES_MANAGER_ROLE) whenNotPaused {
        dusd.mint(receiver, dusdAmount);

        // We don't use the buffer value here because we only mint up to the excess collateral
        uint256 _circulatingDusd = circulatingDusd();
        uint256 _collateralInDusd = collateralInDusd();
        if (_collateralInDusd < _circulatingDusd) {
            revert IssuanceSurpassesExcessCollateral(
                _collateralInDusd,
                _circulatingDusd
            );
        }
    }

    /**
     * @notice Increases the AMO supply by minting new dUSD tokens
     * @param dusdAmount The amount of dUSD to mint and send to the AMO Manager
     */
    function increaseAmoSupply(
        uint256 dusdAmount
    ) external onlyRole(AMO_MANAGER_ROLE) whenNotPaused {
        uint256 _circulatingDusdBefore = circulatingDusd();

        dusd.mint(address(amoManager), dusdAmount);

        uint256 _circulatingDusdAfter = circulatingDusd();

        // Sanity check that we are sending to the active AMO Manager
        if (_circulatingDusdAfter != _circulatingDusdBefore) {
            revert MintingToAmoShouldNotIncreaseSupply(
                _circulatingDusdBefore,
                _circulatingDusdAfter
            );
        }
    }

    /**
     * @notice Calculates the circulating supply of dUSD tokens
     * @return The amount of dUSD tokens that are not held by the AMO Manager
     */
    function circulatingDusd() public view returns (uint256) {
        uint256 totalDusd = dusd.totalSupply();
        uint256 amoDusd = amoManager.totalAmoSupply();
        return totalDusd - amoDusd;
    }

    /**
     * @notice Calculates the collateral value in dUSD tokens
     * @return The amount of dUSD tokens equivalent to the collateral value
     */
    function collateralInDusd() public view returns (uint256) {
        uint256 _collateralInBase = collateralVault.totalValue();
        return baseValueToDusdAmount(_collateralInBase);
    }

    /**
     * @notice Converts a base value to an equivalent amount of dUSD tokens
     * @param baseValue The amount of base value to convert
     * @return The equivalent amount of dUSD tokens
     */
    function baseValueToDusdAmount(
        uint256 baseValue
    ) public view returns (uint256) {
        return Math.mulDiv(baseValue, 10 ** dusdDecimals, baseCurrencyUnit);
    }

    /**
     * @notice Returns whether `asset` is currently enabled for minting by the issuer
     * @dev Asset must be supported by the collateral vault and not paused by issuer
     */
    function isAssetMintingEnabled(address asset) public view returns (bool) {
        if (!collateralVault.isCollateralSupported(asset)) return false;
        return !assetMintingPaused[asset];
    }

    /* Admin */

    /**
     * @notice Sets the AMO Manager address
     * @param _amoManager The address of the AMO Manager
     */
    function setAmoManager(
        address _amoManager
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        address old = address(amoManager);
        amoManager = AmoManager(_amoManager);
        grantRole(AMO_MANAGER_ROLE, _amoManager);
        if (old != address(0) && old != _amoManager) {
            revokeRole(AMO_MANAGER_ROLE, old);
        }
        emit AmoManagerSet(_amoManager);
    }

    /**
     * @notice Sets the collateral vault address
     * @param _collateralVault The address of the collateral vault
     */
    function setCollateralVault(
        address _collateralVault
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        collateralVault = CollateralVault(_collateralVault);
        emit CollateralVaultSet(_collateralVault);
    }

    /**
     * @notice Set minting pause override for a specific collateral asset
     * @param asset The collateral asset address
     * @param paused True to pause minting; false to enable
     */
    function setAssetMintingPause(
        address asset,
        bool paused
    ) external onlyRole(PAUSER_ROLE) {
        // Optional guard: if vault does not support the asset, setting an override is meaningless
        if (!collateralVault.isCollateralSupported(asset)) {
            revert CollateralVault.UnsupportedCollateral(asset);
        }
        assetMintingPaused[asset] = paused;
        emit AssetMintingPauseUpdated(asset, paused);
    }

    /**
     * @notice Pause all minting operations
     */
    function pauseMinting() external onlyRole(PAUSER_ROLE) {
        _pause();
    }

    /**
     * @notice Unpause all minting operations
     */
    function unpauseMinting() external onlyRole(PAUSER_ROLE) {
        _unpause();
    }
}

// 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) (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 v5.0.0) (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) (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) (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: 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
// 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
// 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) (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);
}

// 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) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    bool private _paused;

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (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/structs/EnumerableMap.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableMap.js.

pragma solidity ^0.8.20;

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

/**
 * @dev Library for managing an enumerable variant of Solidity's
 * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
 * type.
 *
 * Maps have the following properties:
 *
 * - Entries are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Entries are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableMap for EnumerableMap.UintToAddressMap;
 *
 *     // Declare a set state variable
 *     EnumerableMap.UintToAddressMap private myMap;
 * }
 * ```
 *
 * The following map types are supported:
 *
 * - `uint256 -> address` (`UintToAddressMap`) since v3.0.0
 * - `address -> uint256` (`AddressToUintMap`) since v4.6.0
 * - `bytes32 -> bytes32` (`Bytes32ToBytes32Map`) since v4.6.0
 * - `uint256 -> uint256` (`UintToUintMap`) since v4.7.0
 * - `bytes32 -> uint256` (`Bytes32ToUintMap`) since v4.7.0
 *
 * [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 EnumerableMap, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableMap.
 * ====
 */
library EnumerableMap {
    using EnumerableSet for EnumerableSet.Bytes32Set;

    // To implement this library for multiple types with as little code repetition as possible, we write it in
    // terms of a generic Map type with bytes32 keys and values. The Map implementation uses private functions,
    // and user-facing implementations such as `UintToAddressMap` are just wrappers around the underlying Map.
    // This means that we can only create new EnumerableMaps for types that fit in bytes32.

    /**
     * @dev Query for a nonexistent map key.
     */
    error EnumerableMapNonexistentKey(bytes32 key);

    struct Bytes32ToBytes32Map {
        // Storage of keys
        EnumerableSet.Bytes32Set _keys;
        mapping(bytes32 key => bytes32) _values;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(Bytes32ToBytes32Map storage map, bytes32 key, bytes32 value) internal returns (bool) {
        map._values[key] = value;
        return map._keys.add(key);
    }

    /**
     * @dev Removes a key-value pair from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(Bytes32ToBytes32Map storage map, bytes32 key) internal returns (bool) {
        delete map._values[key];
        return map._keys.remove(key);
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool) {
        return map._keys.contains(key);
    }

    /**
     * @dev Returns the number of key-value pairs in the map. O(1).
     */
    function length(Bytes32ToBytes32Map storage map) internal view returns (uint256) {
        return map._keys.length();
    }

    /**
     * @dev Returns the key-value pair stored at position `index` in the map. O(1).
     *
     * Note that there are no guarantees on the ordering of entries inside the
     * array, and it may change when more entries are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32ToBytes32Map storage map, uint256 index) internal view returns (bytes32, bytes32) {
        bytes32 key = map._keys.at(index);
        return (key, map._values[key]);
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool, bytes32) {
        bytes32 value = map._values[key];
        if (value == bytes32(0)) {
            return (contains(map, key), bytes32(0));
        } else {
            return (true, value);
        }
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bytes32) {
        bytes32 value = map._values[key];
        if (value == 0 && !contains(map, key)) {
            revert EnumerableMapNonexistentKey(key);
        }
        return value;
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * 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 map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(Bytes32ToBytes32Map storage map) internal view returns (bytes32[] memory) {
        return map._keys.values();
    }

    // UintToUintMap

    struct UintToUintMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(UintToUintMap storage map, uint256 key, uint256 value) internal returns (bool) {
        return set(map._inner, bytes32(key), bytes32(value));
    }

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

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

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(UintToUintMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. 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(UintToUintMap storage map, uint256 index) internal view returns (uint256, uint256) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (uint256(key), uint256(value));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(UintToUintMap storage map, uint256 key) internal view returns (bool, uint256) {
        (bool success, bytes32 value) = tryGet(map._inner, bytes32(key));
        return (success, uint256(value));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToUintMap storage map, uint256 key) internal view returns (uint256) {
        return uint256(get(map._inner, bytes32(key)));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * 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 map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(UintToUintMap storage map) internal view returns (uint256[] memory) {
        bytes32[] memory store = keys(map._inner);
        uint256[] memory result;

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

        return result;
    }

    // UintToAddressMap

    struct UintToAddressMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
        return set(map._inner, bytes32(key), bytes32(uint256(uint160(value))));
    }

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

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

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(UintToAddressMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. 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(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (uint256(key), address(uint160(uint256(value))));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) {
        (bool success, bytes32 value) = tryGet(map._inner, bytes32(key));
        return (success, address(uint160(uint256(value))));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
        return address(uint160(uint256(get(map._inner, bytes32(key)))));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * 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 map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(UintToAddressMap storage map) internal view returns (uint256[] memory) {
        bytes32[] memory store = keys(map._inner);
        uint256[] memory result;

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

        return result;
    }

    // AddressToUintMap

    struct AddressToUintMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(AddressToUintMap storage map, address key, uint256 value) internal returns (bool) {
        return set(map._inner, bytes32(uint256(uint160(key))), bytes32(value));
    }

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

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

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(AddressToUintMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. 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(AddressToUintMap storage map, uint256 index) internal view returns (address, uint256) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (address(uint160(uint256(key))), uint256(value));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(AddressToUintMap storage map, address key) internal view returns (bool, uint256) {
        (bool success, bytes32 value) = tryGet(map._inner, bytes32(uint256(uint160(key))));
        return (success, uint256(value));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(AddressToUintMap storage map, address key) internal view returns (uint256) {
        return uint256(get(map._inner, bytes32(uint256(uint160(key)))));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * 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 map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(AddressToUintMap storage map) internal view returns (address[] memory) {
        bytes32[] memory store = keys(map._inner);
        address[] memory result;

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

        return result;
    }

    // Bytes32ToUintMap

    struct Bytes32ToUintMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(Bytes32ToUintMap storage map, bytes32 key, uint256 value) internal returns (bool) {
        return set(map._inner, key, bytes32(value));
    }

    /**
     * @dev Removes a value from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(Bytes32ToUintMap storage map, bytes32 key) internal returns (bool) {
        return remove(map._inner, key);
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool) {
        return contains(map._inner, key);
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(Bytes32ToUintMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. 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(Bytes32ToUintMap storage map, uint256 index) internal view returns (bytes32, uint256) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (key, uint256(value));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool, uint256) {
        (bool success, bytes32 value) = tryGet(map._inner, key);
        return (success, uint256(value));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(Bytes32ToUintMap storage map, bytes32 key) internal view returns (uint256) {
        return uint256(get(map._inner, key));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * 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 map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(Bytes32ToUintMap storage map) internal view returns (bytes32[] memory) {
        bytes32[] memory store = keys(map._inner);
        bytes32[] memory result;

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

        return result;
    }
}

// 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
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.20;

import "@openzeppelin/contracts-5/access/AccessControl.sol";
import "@openzeppelin/contracts-5/utils/structs/EnumerableMap.sol";
import "contracts/shared/Constants.sol";
import "contracts/token/IERC20Stablecoin.sol";
import "contracts/dusd/AmoVault.sol";

/**
 * @title AmoManager
 * @dev Manages AMOs for dUSD
 * Handles allocation, deallocation, collateral management, and profit management for AMO vaults.
 */
contract AmoManager is AccessControl, OracleAware {
    using EnumerableMap for EnumerableMap.AddressToUintMap;

    /* Core state */

    EnumerableMap.AddressToUintMap private _amoVaults;
    uint256 public totalAllocated;
    IERC20Stablecoin public dusd;
    CollateralVault public collateralHolderVault;

    uint256 public immutable USD_UNIT;

    /* Events */

    event AmoVaultSet(address indexed amoVault, bool isActive);
    event AmoAllocated(address indexed amoVault, uint256 dusdAmount);
    event AmoDeallocated(address indexed amoVault, uint256 dusdAmount);
    event ProfitsWithdrawn(address indexed amoVault, uint256 amount);

    /* Roles */

    bytes32 public constant AMO_ALLOCATOR_ROLE =
        keccak256("AMO_ALLOCATOR_ROLE");
    bytes32 public constant FEE_COLLECTOR_ROLE =
        keccak256("FEE_COLLECTOR_ROLE");

    /* Errors */

    error InactiveAmoVault(address amoVault);
    error AmoSupplyInvariantViolation(
        uint256 startingSupply,
        uint256 endingSupply
    );
    error AmoVaultAlreadyEnabled(address amoVault);
    error CannotTransferDUSD();
    error InsufficientProfits(
        uint256 takeProfitValueInUsd,
        int256 availableProfitInUsd
    );

    /**
     * @notice Initializes the AmoManager contract.
     * @param _dusd The address of the dUSD stablecoin.
     * @param _collateralHolderVault The address of the collateral holder vault.
     * @param _oracle The oracle for price feeds.
     */
    constructor(
        address _dusd,
        address _collateralHolderVault,
        IPriceOracleGetter _oracle
    ) OracleAware(_oracle, Constants.ORACLE_BASE_CURRENCY_UNIT) {
        dusd = IERC20Stablecoin(_dusd);
        collateralHolderVault = CollateralVault(_collateralHolderVault);

        USD_UNIT = oracle.BASE_CURRENCY_UNIT();

        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        grantRole(AMO_ALLOCATOR_ROLE, msg.sender);
        grantRole(FEE_COLLECTOR_ROLE, msg.sender);
    }

    /* AMO */

    /**
     * @notice Allocates AMO tokens to an AMO vault.
     * @param amoVault The address of the AMO vault.
     * @param dusdAmount The amount of dUSD to allocate.
     */
    function allocateAmo(
        address amoVault,
        uint256 dusdAmount
    ) public onlyRole(AMO_ALLOCATOR_ROLE) {
        uint256 startingAmoSupply = totalAmoSupply();

        // Make sure the vault is active
        if (!isAmoActive(amoVault)) {
            revert InactiveAmoVault(amoVault);
        }

        // Update the allocation for this vault
        (, uint256 currentAllocation) = _amoVaults.tryGet(amoVault);
        _amoVaults.set(amoVault, currentAllocation + dusdAmount);

        // Make the deposit
        totalAllocated += dusdAmount;
        dusd.transfer(amoVault, dusdAmount);

        // Check invariants
        uint256 endingAmoSupply = totalAmoSupply();
        if (endingAmoSupply != startingAmoSupply) {
            revert AmoSupplyInvariantViolation(
                startingAmoSupply,
                endingAmoSupply
            );
        }

        emit AmoAllocated(amoVault, dusdAmount);
    }

    /**
     * @notice Deallocates AMO tokens from an AMO vault.
     * @param amoVault The address of the AMO vault.
     * @param dusdAmount The amount of dUSD to deallocate.
     */
    function deallocateAmo(
        address amoVault,
        uint256 dusdAmount
    ) public onlyRole(AMO_ALLOCATOR_ROLE) {
        uint256 startingAmoSupply = totalAmoSupply();

        // We don't require that the vault is active or has allocation, since we want to allow withdrawing from inactive vaults

        // If the vault is still active, make sure it has enough allocation and decrease it
        (, uint256 currentAllocation) = _amoVaults.tryGet(amoVault);
        if (currentAllocation > 0) {
            // Update the allocation for this vault
            _amoVaults.set(amoVault, currentAllocation - dusdAmount);
        }

        // Make the withdrawal
        totalAllocated -= dusdAmount;
        dusd.transferFrom(amoVault, address(this), dusdAmount);

        // Check invariants
        uint256 endingAmoSupply = totalAmoSupply();
        if (endingAmoSupply != startingAmoSupply) {
            revert AmoSupplyInvariantViolation(
                startingAmoSupply,
                endingAmoSupply
            );
        }

        emit AmoDeallocated(amoVault, dusdAmount);
    }

    /**
     * @notice Returns the total AMO supply.
     * @return The total AMO supply.
     */
    function totalAmoSupply() public view returns (uint256) {
        uint256 freeBalance = dusd.balanceOf(address(this));
        return freeBalance + totalAllocated;
    }

    /**
     * @notice Decreases the AMO supply by burning dUSD.
     * @param dusdAmount The amount of dUSD to burn.
     */
    function decreaseAmoSupply(
        uint256 dusdAmount
    ) public onlyRole(AMO_ALLOCATOR_ROLE) {
        dusd.burn(dusdAmount);
    }

    /**
     * @notice Checks if an AMO vault is active.
     * @param amoVault The address of the AMO vault to check.
     * @return True if the AMO vault is active, false otherwise.
     */
    function isAmoActive(address amoVault) public view returns (bool) {
        return _amoVaults.contains(amoVault);
    }

    /**
     * @notice Returns the allocation for a specific AMO vault.
     * @param amoVault The address of the AMO vault.
     * @return The current allocation for the vault.
     */
    function amoVaultAllocation(
        address amoVault
    ) public view returns (uint256) {
        (bool exists, uint256 allocation) = _amoVaults.tryGet(amoVault);
        return exists ? allocation : 0;
    }

    /**
     * @notice Returns the list of all AMO vaults.
     * @return The list of AMO vault addresses.
     */
    function amoVaults() public view returns (address[] memory) {
        return _amoVaults.keys();
    }

    /**
     * @notice Enables an AMO vault.
     * @param amoVault The address of the AMO vault.
     */
    function enableAmoVault(
        address amoVault
    ) public onlyRole(DEFAULT_ADMIN_ROLE) {
        if (_amoVaults.contains(amoVault)) {
            revert AmoVaultAlreadyEnabled(amoVault);
        }
        _amoVaults.set(amoVault, 0);
        emit AmoVaultSet(amoVault, true);
    }

    /**
     * @notice Disables an AMO vault.
     * @param amoVault The address of the AMO vault.
     */
    function disableAmoVault(
        address amoVault
    ) public onlyRole(DEFAULT_ADMIN_ROLE) {
        if (!_amoVaults.contains(amoVault)) {
            revert InactiveAmoVault(amoVault);
        }
        _amoVaults.remove(amoVault);
        emit AmoVaultSet(amoVault, false);
    }

    /* Collateral Management */

    /**
     * @notice Returns the total collateral value of all active AMO vaults.
     * @return The total collateral value in USD.
     */
    function totalCollateralValue() public view returns (uint256) {
        uint256 totalUsdValue = 0;
        for (uint256 i = 0; i < _amoVaults.length(); i++) {
            (address vaultAddress, ) = _amoVaults.at(i);
            if (isAmoActive(vaultAddress)) {
                totalUsdValue += AmoVault(vaultAddress).totalCollateralValue();
            }
        }
        return totalUsdValue;
    }

    /**
     * @notice Transfers collateral from an AMO vault to the holding vault.
     * @param amoVault The address of the AMO vault.
     * @param token The address of the collateral token to transfer.
     * @param amount The amount of collateral to transfer.
     */
    function transferFromAmoVaultToHoldingVault(
        address amoVault,
        address token,
        uint256 amount
    ) public onlyRole(AMO_ALLOCATOR_ROLE) {
        if (token == address(dusd)) {
            revert CannotTransferDUSD();
        }

        // Update allocation
        // A note on why we modify AMO allocation when we withdraw collateral:
        // 1. When dUSD AMO enters the AMO vault, the dUSD is initially unbacked
        // 2. Over time the AMO vault accrues collateral in exchange for distributing dUSD
        // 3. We may be able to make better use of that collateral in a different collateral vault
        // 4. So we transfer the collateral out of the AMO vault, but at that point the dUSD that
        //    converted to that collateral is now free-floating and fully backed
        // 5. Thus we decrement the AMO allocation to reflect the fact that the dUSD is no longer
        //    unbacked, but is actually fully backed and circulating
        uint256 collateralUsdValue = collateralHolderVault.assetValueFromAmount(
            amount,
            token
        );
        uint256 collateralInDusd = usdValueToDusdAmount(collateralUsdValue);
        (, uint256 currentAllocation) = _amoVaults.tryGet(amoVault);
        _amoVaults.set(amoVault, currentAllocation - collateralInDusd);
        totalAllocated -= collateralInDusd;

        // Transfer the collateral
        AmoVault(amoVault).withdrawTo(
            address(collateralHolderVault),
            amount,
            token
        );
    }

    /**
     * @notice Transfers collateral from the holding vault to an AMO vault.
     * @param amoVault The address of the AMO vault.
     * @param token The address of the collateral token to transfer.
     * @param amount The amount of collateral to transfer.
     */
    function transferFromHoldingVaultToAmoVault(
        address amoVault,
        address token,
        uint256 amount
    ) public onlyRole(AMO_ALLOCATOR_ROLE) {
        if (token == address(dusd)) {
            revert CannotTransferDUSD();
        }
        if (!_amoVaults.contains(amoVault)) {
            revert InactiveAmoVault(amoVault);
        }

        // Update allocation
        // A note on why we modify AMO allocation when we deposit collateral:
        // 1. When we deposit collateral, it can be used to buy back dUSD
        // 2. When we buy back dUSD, the dUSD is now unbacked (a redemption)
        // 3. Thus any collateral deposited to an AMO vault can create unbacked dUSD,
        //    which means the AMO allocation for that vault must be increased to reflect this
        uint256 collateralUsdValue = collateralHolderVault.assetValueFromAmount(
            amount,
            token
        );
        uint256 collateralInDusd = usdValueToDusdAmount(collateralUsdValue);
        (, uint256 currentAllocation) = _amoVaults.tryGet(amoVault);
        _amoVaults.set(amoVault, currentAllocation + collateralInDusd);
        totalAllocated += collateralInDusd;

        // Transfer the collateral
        collateralHolderVault.withdrawTo(amoVault, amount, token);
    }

    /* Profit Management */

    /**
     * @notice Returns the available profit for a specific vault in USD.
     * @param vaultAddress The address of the AMO vault to check.
     * @return The available profit in USD (can be negative).
     */
    function availableVaultProfitsInUsd(
        address vaultAddress
    ) public view returns (int256) {
        uint256 totalVaultValueInUsd = AmoVault(vaultAddress).totalValue();
        uint256 allocatedDusd = amoVaultAllocation(vaultAddress);
        uint256 allocatedValueInUsd = dusdAmountToUsdValue(allocatedDusd);

        return int256(totalVaultValueInUsd) - int256(allocatedValueInUsd);
    }

    /**
     * @notice Withdraws profits from an AMO vault to a recipient.
     * @param amoVault The AMO vault from which to withdraw profits.
     * @param recipient The address to receive the profits.
     * @param takeProfitToken The collateral token to withdraw.
     * @param takeProfitAmount The amount of collateral to withdraw.
     * @return takeProfitValueInUsd The value of the withdrawn profits in USD.
     */
    function withdrawProfits(
        AmoVault amoVault,
        address recipient,
        address takeProfitToken,
        uint256 takeProfitAmount
    )
        public
        onlyRole(FEE_COLLECTOR_ROLE)
        returns (uint256 takeProfitValueInUsd)
    {
        // Leave open the possibility of withdrawing profits from inactive vaults

        takeProfitValueInUsd = amoVault.assetValueFromAmount(
            takeProfitAmount,
            takeProfitToken
        );

        int256 _availableProfitInUsd = availableVaultProfitsInUsd(
            address(amoVault)
        );

        // Make sure we are withdrawing less than the available profit
        if (
            _availableProfitInUsd <= 0 ||
            int256(takeProfitValueInUsd) > _availableProfitInUsd
        ) {
            revert InsufficientProfits(
                takeProfitValueInUsd,
                _availableProfitInUsd
            );
        }

        // Withdraw profits from the vault
        amoVault.withdrawTo(recipient, takeProfitAmount, takeProfitToken);

        emit ProfitsWithdrawn(address(amoVault), takeProfitValueInUsd);

        return takeProfitValueInUsd;
    }

    /**
     * @notice Returns the total available profit across all AMO vaults in USD.
     * @return The total available profit in USD.
     */
    function availableProfitInUsd() public view returns (int256) {
        int256 totalProfit = 0;

        // Iterate through all AMO vaults
        for (uint256 i = 0; i < _amoVaults.length(); i++) {
            (address vaultAddress, ) = _amoVaults.at(i);

            if (isAmoActive(vaultAddress)) {
                totalProfit += availableVaultProfitsInUsd(vaultAddress);
            }
        }

        return totalProfit;
    }

    /* Utility */

    /**
     * @notice Converts a USD value to an equivalent amount of dUSD tokens.
     * @param usdValue The amount of USD value to convert.
     * @return The equivalent amount of dUSD tokens.
     */
    function usdValueToDusdAmount(
        uint256 usdValue
    ) public view returns (uint256) {
        uint8 dusdDecimals = dusd.decimals();
        return (usdValue * (10 ** dusdDecimals)) / USD_UNIT;
    }

    /**
     * @notice Converts an amount of dUSD tokens to an equivalent USD value.
     * @param dusdAmount The amount of dUSD tokens to convert.
     * @return The equivalent amount of USD value.
     */
    function dusdAmountToUsdValue(
        uint256 dusdAmount
    ) public view returns (uint256) {
        uint8 dusdDecimals = dusd.decimals();
        return
            (dusdAmount * oracle.getAssetPrice(address(dusd))) /
            (10 ** dusdDecimals);
    }

    /* Admin */

    /**
     * @notice Sets the collateral vault address
     * @param _collateralVault The address of the new collateral vault
     */
    function setCollateralVault(
        address _collateralVault
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        collateralHolderVault = CollateralVault(_collateralVault);
    }
}

/**
 * @title ICollateralSum
 * @dev Interface for contracts that can provide total collateral value.
 */
interface ICollateralSum {
    /**
     * @notice Returns the total collateral value of the implementing contract.
     * @return The total collateral value in base value (e.g., USD).
     */
    function totalCollateralValue() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.20;

import "@openzeppelin/contracts-5/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts-5/token/ERC20/IERC20.sol";
import "contracts/token/IERC20Stablecoin.sol";
import "contracts/dusd/AmoManager.sol";
import "@openzeppelin/contracts-5/utils/Address.sol";
import "@openzeppelin/contracts-5/utils/ReentrancyGuard.sol";
import "contracts/dusd/CollateralVault.sol";

interface IRecoverable {
    function recoverERC20(address token, address to, uint256 amount) external;

    function recoverETH(address to, uint256 amount) external;
}

/**
 * @title AmoVault
 * @notice Base contract for AMO (Algorithmic Market Operations) vaults that manage dUSD and collateral assets
 */
abstract contract AmoVault is CollateralVault, IRecoverable, ReentrancyGuard {
    using SafeERC20 for IERC20;
    using Address for address payable;

    /* Core state */

    IERC20Stablecoin public immutable dusd;
    uint8 public immutable dusdDecimals;
    AmoManager public amoManager;

    /* Roles */

    bytes32 public constant RECOVERER_ROLE = keccak256("RECOVERER_ROLE");

    /* Errors */

    error CannotRecoverVaultToken(address token);
    error InvalidAmoManager();

    constructor(
        address _dusd,
        address _amoManager,
        address _admin,
        address _collateralWithdrawer,
        address _recoverer,
        IPriceOracleGetter _oracle
    ) CollateralVault(_oracle) {
        dusd = IERC20Stablecoin(_dusd);
        dusdDecimals = IERC20Metadata(_dusd).decimals();
        amoManager = AmoManager(_amoManager);
        _grantRole(DEFAULT_ADMIN_ROLE, _admin);
        grantRole(COLLATERAL_WITHDRAWER_ROLE, _collateralWithdrawer);
        grantRole(RECOVERER_ROLE, _recoverer);
        approveAmoManager();
    }

    /**
     * @notice Approves the AmoManager to spend dUSD on behalf of this contract
     * @dev Only callable by the contract owner or an account with the DEFAULT_ADMIN_ROLE
     */
    function approveAmoManager() public onlyRole(DEFAULT_ADMIN_ROLE) {
        dusd.approve(address(amoManager), type(uint256).max);
    }

    /**
     * @notice Sets a new AmoManager address
     * @param _newAmoManager The address of the new AmoManager
     * @dev Only callable by an account with the DEFAULT_ADMIN_ROLE
     */
    function setAmoManager(
        address _newAmoManager
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        if (_newAmoManager == address(0)) revert InvalidAmoManager();

        // Reset allowance for old AMO manager
        dusd.approve(address(amoManager), 0);

        // Set new AMO manager
        amoManager = AmoManager(_newAmoManager);

        // Approve new AMO manager
        approveAmoManager();
    }

    /* Recovery */

    /**
     * @notice Recovers ERC20 tokens accidentally sent to the contract
     * @param token The address of the token to recover
     * @param to The address to send the tokens to
     * @param amount The amount of tokens to recover
     */
    function recoverERC20(
        address token,
        address to,
        uint256 amount
    ) external onlyRole(RECOVERER_ROLE) nonReentrant {
        if (token == address(dusd) || isCollateralSupported(token)) {
            revert CannotRecoverVaultToken(token);
        }
        IERC20(token).safeTransfer(to, amount);
    }

    /**
     * @notice Recovers ETH accidentally sent to the contract
     * @param to The address to send the ETH to
     * @param amount The amount of ETH to recover
     */
    function recoverETH(
        address to,
        uint256 amount
    ) external onlyRole(RECOVERER_ROLE) {
        payable(to).sendValue(amount);
    }

    /* Virtual functions */

    /**
     * @notice Calculates the total value of non-dUSD collateral assets in the vault
     * @return The total value of collateral assets denominated in the base currency (e.g., USD)
     * @dev Must be implemented by derived contracts
     */
    function totalCollateralValue() public view virtual returns (uint256);

    /**
     * @notice Calculates the total value of dUSD holdings in the vault
     * @return The total value of dUSD holdings denominated in the base currency (e.g., USD)
     * @dev Must be implemented by derived contracts
     */
    function totalDusdValue() public view virtual returns (uint256);
}

// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.20;

import "@openzeppelin/contracts-5/access/AccessControl.sol";
import "@openzeppelin/contracts-5/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts-5/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts-5/utils/structs/EnumerableSet.sol";

import "contracts/shared/Constants.sol";
import "contracts/lending/core/interfaces/IPriceOracleGetter.sol";
import "contracts/dusd/OracleAware.sol";

/**
 * @title CollateralVault
 * @notice Abstract contract for any contract that manages collateral assets
\ */
abstract contract CollateralVault is AccessControl, OracleAware {
    using SafeERC20 for IERC20Metadata;
    using EnumerableSet for EnumerableSet.AddressSet;

    /* Core state */

    EnumerableSet.AddressSet internal _supportedCollaterals;

    /* Events */

    event CollateralAllowed(address indexed collateralAsset);
    event CollateralDisallowed(address indexed collateralAsset);

    /* Roles */

    bytes32 public constant COLLATERAL_MANAGER_ROLE =
        keccak256("COLLATERAL_MANAGER_ROLE");
    bytes32 public constant COLLATERAL_STRATEGY_ROLE =
        keccak256("COLLATERAL_STRATEGY_ROLE");
    bytes32 public constant COLLATERAL_WITHDRAWER_ROLE =
        keccak256("COLLATERAL_WITHDRAWER_ROLE");

    /* Errors */
    error UnsupportedCollateral(address collateralAsset);
    error CollateralAlreadyAllowed(address collateralAsset);
    error NoOracleSupport(address collateralAsset);
    error FailedToAddCollateral(address collateralAsset);
    error CollateralNotSupported(address collateralAsset);
    error MustSupportAtLeastOneCollateral();
    error FailedToRemoveCollateral(address collateralAsset);

    /**
     * @notice Initializes the vault with an oracle and sets up initial roles
     * @dev Grants all roles to the contract deployer initially
     * @param oracle The price oracle to use for collateral valuation
     */
    constructor(
        IPriceOracleGetter oracle
    ) OracleAware(oracle, Constants.ORACLE_BASE_CURRENCY_UNIT) {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); // This is the super admin
        grantRole(COLLATERAL_MANAGER_ROLE, msg.sender);
        grantRole(COLLATERAL_WITHDRAWER_ROLE, msg.sender);
        grantRole(COLLATERAL_STRATEGY_ROLE, msg.sender);
    }

    /* Deposit */

    /**
     * @notice Deposit collateral into the vault
     * @param collateralAmount The amount of collateral to deposit
     * @param collateralAsset The address of the collateral asset
     */
    function deposit(uint256 collateralAmount, address collateralAsset) public {
        if (!_supportedCollaterals.contains(collateralAsset)) {
            revert UnsupportedCollateral(collateralAsset);
        }

        IERC20Metadata(collateralAsset).safeTransferFrom(
            msg.sender,
            address(this),
            collateralAmount
        );
    }

    /* Withdrawal */

    /**
     * @notice Withdraws collateral from the vault
     * @param collateralAmount The amount of collateral to withdraw
     * @param collateralAsset The address of the collateral asset
     */
    function withdraw(
        uint256 collateralAmount,
        address collateralAsset
    ) public onlyRole(COLLATERAL_WITHDRAWER_ROLE) {
        return _withdraw(msg.sender, collateralAmount, collateralAsset);
    }

    /**
     * @notice Withdraws collateral from the vault to a specific address
     * @param recipient The address receiving the collateral
     * @param collateralAmount The amount of collateral to withdraw
     * @param collateralAsset The address of the collateral asset
     */
    function withdrawTo(
        address recipient,
        uint256 collateralAmount,
        address collateralAsset
    ) public onlyRole(COLLATERAL_WITHDRAWER_ROLE) {
        return _withdraw(recipient, collateralAmount, collateralAsset);
    }

    /**
     * @notice Internal function to withdraw collateral from the vault
     * @param withdrawer The address withdrawing the collateral
     * @param collateralAmount The amount of collateral to withdraw
     * @param collateralAsset The address of the collateral asset
     */
    function _withdraw(
        address withdrawer,
        uint256 collateralAmount,
        address collateralAsset
    ) internal {
        IERC20Metadata(collateralAsset).safeTransfer(
            withdrawer,
            collateralAmount
        );
    }

    /* Collateral Info */

    /**
     * @notice Calculates the total value of all assets in the vault
     * @return usdValue The total value of all assets in USD
     */
    function totalValue() public view virtual returns (uint256 usdValue);

    /**
     * @notice Calculates the USD value of a given amount of an asset
     * @param assetAmount The amount of the asset
     * @param asset The address of the asset
     * @return usdValue The USD value of the asset
     */
    function assetValueFromAmount(
        uint256 assetAmount,
        address asset
    ) public view returns (uint256 usdValue) {
        uint256 assetPrice = oracle.getAssetPrice(asset);
        uint8 assetDecimals = IERC20Metadata(asset).decimals();
        return (assetPrice * assetAmount) / (10 ** assetDecimals);
    }

    /**
     * @notice Calculates the amount of an asset that corresponds to a given USD value
     * @param usdValue The USD value
     * @param asset The address of the asset
     * @return assetAmount The amount of the asset
     */
    function assetAmountFromValue(
        uint256 usdValue,
        address asset
    ) public view returns (uint256 assetAmount) {
        uint256 assetPrice = oracle.getAssetPrice(asset);
        uint8 assetDecimals = IERC20Metadata(asset).decimals();
        return (usdValue * (10 ** assetDecimals)) / assetPrice;
    }

    /* Collateral management */

    /**
     * @notice Allows a new collateral asset
     * @param collateralAsset The address of the collateral asset
     */
    function allowCollateral(
        address collateralAsset
    ) public onlyRole(COLLATERAL_MANAGER_ROLE) {
        if (_supportedCollaterals.contains(collateralAsset)) {
            revert CollateralAlreadyAllowed(collateralAsset);
        }
        if (oracle.getAssetPrice(collateralAsset) == 0) {
            revert NoOracleSupport(collateralAsset);
        }
        if (!_supportedCollaterals.add(collateralAsset)) {
            revert FailedToAddCollateral(collateralAsset);
        }
        emit CollateralAllowed(collateralAsset);
    }

    /**
     * @notice Disallows a previously supported collateral asset
     * @dev Requires at least one collateral asset to remain supported
     * @param collateralAsset The address of the collateral asset to disallow
     */
    function disallowCollateral(
        address collateralAsset
    ) public onlyRole(COLLATERAL_MANAGER_ROLE) {
        if (!_supportedCollaterals.contains(collateralAsset)) {
            revert CollateralNotSupported(collateralAsset);
        }
        if (_supportedCollaterals.length() <= 1) {
            revert MustSupportAtLeastOneCollateral();
        }
        if (!_supportedCollaterals.remove(collateralAsset)) {
            revert FailedToRemoveCollateral(collateralAsset);
        }

        emit CollateralDisallowed(collateralAsset);
    }

    /**
     * @notice Checks if a given asset is supported as collateral
     * @param collateralAsset The address of the collateral asset to check
     * @return bool True if the asset is supported, false otherwise
     */
    function isCollateralSupported(
        address collateralAsset
    ) public view returns (bool) {
        return _supportedCollaterals.contains(collateralAsset);
    }

    /**
     * @notice Returns a list of all supported collateral assets
     * @return address[] Array of collateral asset addresses
     */
    function listCollateral() public view returns (address[] memory) {
        return _supportedCollaterals.values();
    }

    /**
     * @notice Calculates the total USD value of all supported collateral assets in the vault
     * @dev Iterates through all supported collaterals and sums their USD values
     * @return uint256 The total value in USD
     */
    function _totalValueOfSupportedCollaterals()
        internal
        view
        returns (uint256)
    {
        uint256 totalUsdValue = 0;
        for (uint256 i = 0; i < _supportedCollaterals.length(); i++) {
            address collateral = _supportedCollaterals.at(i);
            uint256 collateralPrice = oracle.getAssetPrice(collateral);
            uint8 collateralDecimals = IERC20Metadata(collateral).decimals();
            uint256 collateralValue = (collateralPrice *
                IERC20Metadata(collateral).balanceOf(address(this))) /
                (10 ** collateralDecimals);
            totalUsdValue += collateralValue;
        }
        return totalUsdValue;
    }
}

// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.20;

import "@openzeppelin/contracts-5/access/AccessControl.sol";
import "contracts/lending/core/interfaces/IPriceOracleGetter.sol";

/**
 * @title OracleAware
 * @notice Abstract contract that provides oracle functionality to other contracts
 */
abstract contract OracleAware is AccessControl {
    /* Core state */

    IPriceOracleGetter public oracle;
    uint256 public baseCurrencyUnit;

    /* Events */

    event OracleSet(address indexed newOracle);

    /* Errors */

    error IncorrectBaseCurrencyUnit(uint256 baseCurrencyUnit);

    /**
     * @notice Initializes the contract with an oracle and base currency unit
     * @param initialOracle The initial oracle to use for price feeds
     * @param _baseCurrencyUnit The base currency unit for price calculations
     * @dev Sets up the initial oracle and base currency unit values
     */
    constructor(IPriceOracleGetter initialOracle, uint256 _baseCurrencyUnit) {
        oracle = initialOracle;
        baseCurrencyUnit = _baseCurrencyUnit;

        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
    }

    /**
     * @notice Sets the oracle to use for collateral valuation
     * @param newOracle The new oracle to use
     */
    function setOracle(
        IPriceOracleGetter newOracle
    ) public onlyRole(DEFAULT_ADMIN_ROLE) {
        if (newOracle.BASE_CURRENCY_UNIT() != baseCurrencyUnit) {
            revert IncorrectBaseCurrencyUnit(baseCurrencyUnit);
        }

        oracle = newOracle;

        emit OracleSet(address(newOracle));
    }

    /**
     * @notice Updates the base currency unit used for price calculations
     * @param _newBaseCurrencyUnit The new base currency unit to set
     * @dev Only used if the oracle's base currency unit changes
     */
    function setBaseCurrencyUnit(
        uint256 _newBaseCurrencyUnit
    ) public onlyRole(DEFAULT_ADMIN_ROLE) {
        baseCurrencyUnit = _newBaseCurrencyUnit;
    }
}

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

import {IPriceOracleGetter} from "./IPriceOracleGetter.sol";
import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";

/**
 * @title IAaveOracle
 * @author Aave
 * @notice Defines the basic interface for the Aave Oracle
 */
interface IAaveOracle is IPriceOracleGetter {
    /**
     * @dev Emitted after the base currency is set
     * @param baseCurrency The base currency of used for price quotes
     * @param baseCurrencyUnit The unit of the base currency
     */
    event BaseCurrencySet(
        address indexed baseCurrency,
        uint256 baseCurrencyUnit
    );

    /**
     * @dev Emitted after the price source of an asset is updated
     * @param asset The address of the asset
     * @param source The price source of the asset
     */
    event AssetSourceUpdated(address indexed asset, address indexed source);

    /**
     * @dev Emitted after the address of fallback oracle is updated
     * @param fallbackOracle The address of the fallback oracle
     */
    event FallbackOracleUpdated(address indexed fallbackOracle);

    /**
     * @notice Returns the PoolAddressesProvider
     * @return The address of the PoolAddressesProvider contract
     */
    function ADDRESSES_PROVIDER()
        external
        view
        returns (IPoolAddressesProvider);

    /**
     * @notice Sets or replaces price sources of assets
     * @param assets The addresses of the assets
     * @param sources The addresses of the price sources
     */
    function setAssetSources(
        address[] calldata assets,
        address[] calldata sources
    ) external;

    /**
     * @notice Sets the fallback oracle
     * @param fallbackOracle The address of the fallback oracle
     */
    function setFallbackOracle(address fallbackOracle) external;

    /**
     * @notice Returns a list of prices from a list of assets addresses
     * @param assets The list of assets addresses
     * @return The prices of the given assets
     */
    function getAssetsPrices(
        address[] calldata assets
    ) external view returns (uint256[] memory);

    /**
     * @notice Returns the address of the source for an asset address
     * @param asset The address of the asset
     * @return The address of the source
     */
    function getSourceOfAsset(address asset) external view returns (address);

    /**
     * @notice Returns the address of the fallback oracle
     * @return The address of the fallback oracle
     */
    function getFallbackOracle() external view returns (address);
}

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

/**
 * @title IPoolAddressesProvider
 * @author Aave
 * @notice Defines the basic interface for a Pool Addresses Provider.
 */
interface IPoolAddressesProvider {
    /**
     * @dev Emitted when the market identifier is updated.
     * @param oldMarketId The old id of the market
     * @param newMarketId The new id of the market
     */
    event MarketIdSet(string indexed oldMarketId, string indexed newMarketId);

    /**
     * @dev Emitted when the pool is updated.
     * @param oldAddress The old address of the Pool
     * @param newAddress The new address of the Pool
     */
    event PoolUpdated(address indexed oldAddress, address indexed newAddress);

    /**
     * @dev Emitted when the pool configurator is updated.
     * @param oldAddress The old address of the PoolConfigurator
     * @param newAddress The new address of the PoolConfigurator
     */
    event PoolConfiguratorUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the price oracle is updated.
     * @param oldAddress The old address of the PriceOracle
     * @param newAddress The new address of the PriceOracle
     */
    event PriceOracleUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the ACL manager is updated.
     * @param oldAddress The old address of the ACLManager
     * @param newAddress The new address of the ACLManager
     */
    event ACLManagerUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the ACL admin is updated.
     * @param oldAddress The old address of the ACLAdmin
     * @param newAddress The new address of the ACLAdmin
     */
    event ACLAdminUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the price oracle sentinel is updated.
     * @param oldAddress The old address of the PriceOracleSentinel
     * @param newAddress The new address of the PriceOracleSentinel
     */
    event PriceOracleSentinelUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the pool data provider is updated.
     * @param oldAddress The old address of the PoolDataProvider
     * @param newAddress The new address of the PoolDataProvider
     */
    event PoolDataProviderUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when a new proxy is created.
     * @param id The identifier of the proxy
     * @param proxyAddress The address of the created proxy contract
     * @param implementationAddress The address of the implementation contract
     */
    event ProxyCreated(
        bytes32 indexed id,
        address indexed proxyAddress,
        address indexed implementationAddress
    );

    /**
     * @dev Emitted when a new non-proxied contract address is registered.
     * @param id The identifier of the contract
     * @param oldAddress The address of the old contract
     * @param newAddress The address of the new contract
     */
    event AddressSet(
        bytes32 indexed id,
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the implementation of the proxy registered with id is updated
     * @param id The identifier of the contract
     * @param proxyAddress The address of the proxy contract
     * @param oldImplementationAddress The address of the old implementation contract
     * @param newImplementationAddress The address of the new implementation contract
     */
    event AddressSetAsProxy(
        bytes32 indexed id,
        address indexed proxyAddress,
        address oldImplementationAddress,
        address indexed newImplementationAddress
    );

    /**
     * @notice Returns the id of the Aave market to which this contract points to.
     * @return The market id
     */
    function getMarketId() external view returns (string memory);

    /**
     * @notice Associates an id with a specific PoolAddressesProvider.
     * @dev This can be used to create an onchain registry of PoolAddressesProviders to
     * identify and validate multiple Aave markets.
     * @param newMarketId The market id
     */
    function setMarketId(string calldata newMarketId) external;

    /**
     * @notice Returns an address by its identifier.
     * @dev The returned address might be an EOA or a contract, potentially proxied
     * @dev It returns ZERO if there is no registered address with the given id
     * @param id The id
     * @return The address of the registered for the specified id
     */
    function getAddressFromID(bytes32 id) external view returns (address);

    /**
     * @notice General function to update the implementation of a proxy registered with
     * certain `id`. If there is no proxy registered, it will instantiate one and
     * set as implementation the `newImplementationAddress`.
     * @dev IMPORTANT Use this function carefully, only for ids that don't have an explicit
     * setter function, in order to avoid unexpected consequences
     * @param id The id
     * @param newImplementationAddress The address of the new implementation
     */
    function setAddressAsProxy(
        bytes32 id,
        address newImplementationAddress
    ) external;

    /**
     * @notice Sets an address for an id replacing the address saved in the addresses map.
     * @dev IMPORTANT Use this function carefully, as it will do a hard replacement
     * @param id The id
     * @param newAddress The address to set
     */
    function setAddress(bytes32 id, address newAddress) external;

    /**
     * @notice Returns the address of the Pool proxy.
     * @return The Pool proxy address
     */
    function getPool() external view returns (address);

    /**
     * @notice Updates the implementation of the Pool, or creates a proxy
     * setting the new `pool` implementation when the function is called for the first time.
     * @param newPoolImpl The new Pool implementation
     */
    function setPoolImpl(address newPoolImpl) external;

    /**
     * @notice Returns the address of the PoolConfigurator proxy.
     * @return The PoolConfigurator proxy address
     */
    function getPoolConfigurator() external view returns (address);

    /**
     * @notice Updates the implementation of the PoolConfigurator, or creates a proxy
     * setting the new `PoolConfigurator` implementation when the function is called for the first time.
     * @param newPoolConfiguratorImpl The new PoolConfigurator implementation
     */
    function setPoolConfiguratorImpl(address newPoolConfiguratorImpl) external;

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

    /**
     * @notice Updates the address of the price oracle.
     * @param newPriceOracle The address of the new PriceOracle
     */
    function setPriceOracle(address newPriceOracle) external;

    /**
     * @notice Returns the address of the ACL manager.
     * @return The address of the ACLManager
     */
    function getACLManager() external view returns (address);

    /**
     * @notice Updates the address of the ACL manager.
     * @param newAclManager The address of the new ACLManager
     */
    function setACLManager(address newAclManager) external;

    /**
     * @notice Returns the address of the ACL admin.
     * @return The address of the ACL admin
     */
    function getACLAdmin() external view returns (address);

    /**
     * @notice Updates the address of the ACL admin.
     * @param newAclAdmin The address of the new ACL admin
     */
    function setACLAdmin(address newAclAdmin) external;

    /**
     * @notice Returns the address of the price oracle sentinel.
     * @return The address of the PriceOracleSentinel
     */
    function getPriceOracleSentinel() external view returns (address);

    /**
     * @notice Updates the address of the price oracle sentinel.
     * @param newPriceOracleSentinel The address of the new PriceOracleSentinel
     */
    function setPriceOracleSentinel(address newPriceOracleSentinel) external;

    /**
     * @notice Returns the address of the data provider.
     * @return The address of the DataProvider
     */
    function getPoolDataProvider() external view returns (address);

    /**
     * @notice Updates the address of the data provider.
     * @param newDataProvider The address of the new DataProvider
     */
    function setPoolDataProvider(address newDataProvider) external;
}

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

/**
 * @title IPriceOracleGetter
 * @author Aave
 * @notice Interface for the Aave price oracle.
 */
interface IPriceOracleGetter {
    /**
     * @notice Returns the base currency address
     * @dev Address 0x0 is reserved for USD as base currency.
     * @return Returns the base currency address.
     */
    function BASE_CURRENCY() external view returns (address);

    /**
     * @notice Returns the base currency unit
     * @dev 1 ether for ETH, 1e8 for USD.
     * @return Returns the base currency unit.
     */
    function BASE_CURRENCY_UNIT() external view returns (uint256);

    /**
     * @notice Returns the asset price in the base currency
     * @param asset The address of the asset
     * @return The price of the asset
     */
    function getAssetPrice(address asset) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

library Constants {
    // Shared definitions of how we represent percentages and basis points
    uint16 public constant ONE_BPS = 100; // 1 basis point with 2 decimals
    uint32 public constant ONE_PERCENT_BPS = ONE_BPS * 100;
    uint32 public constant ONE_HUNDRED_PERCENT_BPS = ONE_PERCENT_BPS * 100;

    uint32 public constant ORACLE_BASE_CURRENCY_UNIT = 1e8;
}

// SPDX-License-Identifier: Unlicense
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.20;

import "@openzeppelin/contracts-5/token/ERC20/IERC20.sol";

interface IERC20Stablecoin is IERC20 {
    function mint(address to, uint256 amount) external;

    function burn(uint256 amount) external;

    function burnFrom(address account, uint256 amount) external;

    function decimals() external view returns (uint8);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

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IPriceOracleGetter","name":"oracle","type":"address"},{"internalType":"address","name":"_amoManager","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":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"asset","type":"address"}],"name":"AssetMintingPaused","type":"error"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[{"internalType":"uint256","name":"baseCurrencyUnit","type":"uint256"}],"name":"IncorrectBaseCurrencyUnit","type":"error"},{"inputs":[{"internalType":"uint256","name":"collateralInDusd","type":"uint256"},{"internalType":"uint256","name":"circulatingDusd","type":"uint256"}],"name":"IssuanceSurpassesExcessCollateral","type":"error"},{"inputs":[],"name":"MathOverflowedMulDiv","type":"error"},{"inputs":[{"internalType":"uint256","name":"circulatingDusdBefore","type":"uint256"},{"internalType":"uint256","name":"circulatingDusdAfter","type":"uint256"}],"name":"MintingToAmoShouldNotIncreaseSupply","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[{"internalType":"uint256","name":"minDUsd","type":"uint256"},{"internalType":"uint256","name":"dusdAmount","type":"uint256"}],"name":"SlippageTooHigh","type":"error"},{"inputs":[{"internalType":"address","name":"collateralAsset","type":"address"}],"name":"UnsupportedCollateral","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"amoManager","type":"address"}],"name":"AmoManagerSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"bool","name":"paused","type":"bool"}],"name":"AssetMintingPauseUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"collateralVault","type":"address"}],"name":"CollateralVaultSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newOracle","type":"address"}],"name":"OracleSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"AMO_MANAGER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"INCENTIVES_MANAGER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PAUSER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"amoManager","outputs":[{"internalType":"contract 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IPriceOracleGetter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauseMinting","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","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":"_amoManager","type":"address"}],"name":"setAmoManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"asset","type":"address"},{"internalType":"bool","name":"paused","type":"bool"}],"name":"setAssetMintingPause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newBaseCurrencyUnit","type":"uint256"}],"name":"setBaseCurrencyUnit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_collateralVault","type":"address"}],"name":"setCollateralVault","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IPriceOracleGetter","name":"newOracle","type":"address"}],"name":"setOracle","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":[],"name":"unpauseMinting","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000624e12de7a97b8cfc1ad1f050a1c9263b1f4febc000000000000000000000000788d96f655735f52c676a133f4dfc53cec614d4a000000000000000000000000fa7560956807d95dcef22990ddd92e38dbaf5cdd00000000000000000000000049a0c8030ca199f6f246517ae689e3cc0775271a

-----Decoded View---------------
Arg [0] : _collateralVault (address): 0x624E12dE7a97B8cFc1AD1F050a1c9263b1f4FeBC
Arg [1] : _dusd (address): 0x788D96f655735f52c676A133f4dFC53cEC614d4A
Arg [2] : oracle (address): 0xFA7560956807d95DCeF22990DdD92e38DbAf5cDd
Arg [3] : _amoManager (address): 0x49a0c8030Ca199f6F246517aE689E3cC0775271a

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000624e12de7a97b8cfc1ad1f050a1c9263b1f4febc
Arg [1] : 000000000000000000000000788d96f655735f52c676a133f4dfc53cec614d4a
Arg [2] : 000000000000000000000000fa7560956807d95dcef22990ddd92e38dbaf5cdd
Arg [3] : 00000000000000000000000049a0c8030ca199f6f246517ae689e3cc0775271a