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

pragma solidity ^0.8.20;

import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";

import "contracts/common/IAaveOracle.sol";
import "contracts/common/IMintableERC20.sol";
import "./CollateralVault.sol";
import "./AmoManager.sol";
import "./OracleAware.sol";

/**
 * @title Issuer
 * @notice Contract responsible for issuing dStable tokens
 */
contract Issuer is AccessControl, OracleAware {
    using SafeERC20 for IERC20Metadata;

    /* Core state */

    IMintableERC20 public dstable;
    uint8 public immutable dstableDecimals;
    CollateralVault public collateralVault;
    AmoManager public amoManager;

    uint256 public immutable BASE_UNIT;

    /* Events */

    event CollateralVaultSet(address indexed collateralVault);
    event AmoManagerSet(address indexed amoManager);

    /* Roles */

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

    /* Errors */

    error SlippageTooHigh(uint256 minDStable, uint256 dstableAmount);
    error IssuanceSurpassesExcessCollateral(
        uint256 collateralInDstable,
        uint256 circulatingDstable
    );
    error MintingToAmoShouldNotIncreaseSupply(
        uint256 circulatingDstableBefore,
        uint256 circulatingDstableAfter
    );

    /**
     * @notice Initializes the Issuer contract with core dependencies
     * @param _collateralVault The address of the collateral vault
     * @param _dstable The address of the dStable stablecoin
     * @param oracle The address of the price oracle
     * @param _amoManager The address of the AMO Manager
     */
    constructor(
        address _collateralVault,
        address _dstable,
        IPriceOracleGetter oracle,
        address _amoManager
    ) OracleAware(oracle, oracle.BASE_CURRENCY_UNIT()) {
        collateralVault = CollateralVault(_collateralVault);
        dstable = IMintableERC20(_dstable);
        dstableDecimals = dstable.decimals();
        amoManager = AmoManager(_amoManager);

        BASE_UNIT = oracle.BASE_CURRENCY_UNIT();

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

    /* Issuer */

    /**
     * @notice Issues dStable 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 minDStable The minimum amount of dStable to receive, used for slippage protection
     */
    function issue(
        uint256 collateralAmount,
        address collateralAsset,
        uint256 minDStable
    ) external {
        uint8 collateralDecimals = IERC20Metadata(collateralAsset).decimals();
        uint256 baseValue = (oracle.getAssetPrice(collateralAsset) *
            collateralAmount) / (10 ** collateralDecimals);
        uint256 dstableAmount = baseValueToDstableAmount(baseValue);
        if (dstableAmount < minDStable) {
            revert SlippageTooHigh(minDStable, dstableAmount);
        }

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

        dstable.mint(msg.sender, dstableAmount);
    }

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

        // We don't use the buffer value here because we only mint up to the excess collateral
        uint256 _circulatingDstable = circulatingDstable();
        uint256 _collateralInDstable = collateralInDstable();
        if (_collateralInDstable < _circulatingDstable) {
            revert IssuanceSurpassesExcessCollateral(
                _collateralInDstable,
                _circulatingDstable
            );
        }
    }

    /**
     * @notice Increases the AMO supply by minting new dStable tokens
     * @param dstableAmount The amount of dStable to mint and send to the AMO Manager
     */
    function increaseAmoSupply(
        uint256 dstableAmount
    ) external onlyRole(AMO_MANAGER_ROLE) {
        uint256 _circulatingDstableBefore = circulatingDstable();

        dstable.mint(address(amoManager), dstableAmount);

        uint256 _circulatingDstableAfter = circulatingDstable();

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

    /**
     * @notice Calculates the circulating supply of dStable tokens
     * @return The amount of dStable tokens that are not held by the AMO Manager
     */
    function circulatingDstable() public view returns (uint256) {
        uint256 totalDstable = dstable.totalSupply();
        uint256 amoDstable = amoManager.totalAmoSupply();
        return totalDstable - amoDstable;
    }

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

    /**
     * @notice Converts a base value to an equivalent amount of dStable tokens
     * @param baseValue The amount of base value to convert
     * @return The equivalent amount of dStable tokens
     */
    function baseValueToDstableAmount(
        uint256 baseValue
    ) public view returns (uint256) {
        return (baseValue * (10 ** dstableDecimals)) / BASE_UNIT;
    }

    /* Admin */

    /**
     * @notice Sets the AMO Manager address
     * @param _amoManager The address of the AMO Manager
     */
    function setAmoManager(
        address _amoManager
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        amoManager = AmoManager(_amoManager);
        grantRole(AMO_MANAGER_ROLE, _amoManager);
        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);
    }
}

// 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 v5.1.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC-165 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. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    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 v5.1.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}

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

pragma solidity ^0.8.20;

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

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

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Interface for the optional metadata functions from the ERC-20 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 v5.2.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 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 {
    /**
     * @dev An operation with an ERC-20 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.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    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.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    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.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    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 Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            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 {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            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 silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (utils/Address.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @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 Errors.InsufficientBalance(address(this).balance, amount);
        }

        (bool success, bytes memory returndata) = recipient.call{value: amount}("");
        if (!success) {
            _revert(returndata);
        }
    }

    /**
     * @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
     * {Errors.FailedCall} 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 Errors.InsufficientBalance(address(this).balance, value);
        }
        (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 {Errors.FailedCall}) 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 {Errors.FailedCall} 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 {Errors.FailedCall}.
     */
    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
            assembly ("memory-safe") {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert Errors.FailedCall();
        }
    }
}

// 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 v5.1.0) (utils/Errors.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of common custom errors used in multiple contracts
 *
 * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
 * It is recommended to avoid relying on the error API for critical functionality.
 *
 * _Available since v5.1._
 */
library Errors {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error InsufficientBalance(uint256 balance, uint256 needed);

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

    /**
     * @dev The deployment failed.
     */
    error FailedDeployment();

    /**
     * @dev A necessary precompile is missing.
     */
    error MissingPrecompile(address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (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 EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * 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 v5.1.0) (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 ERC-165 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 v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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 v5.1.0) (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
 * - `uint256 -> bytes32` (`UintToBytes32Map`) since v5.1.0
 * - `address -> address` (`AddressToAddressMap`) since v5.1.0
 * - `address -> bytes32` (`AddressToBytes32Map`) since v5.1.0
 * - `bytes32 -> address` (`Bytes32ToAddressMap`) since v5.1.0
 *
 * [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 key, bytes32 value) {
        bytes32 atKey = map._keys.at(index);
        return (atKey, map._values[atKey]);
    }

    /**
     * @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 exists, bytes32 value) {
        bytes32 val = map._values[key];
        if (val == bytes32(0)) {
            return (contains(map, key), bytes32(0));
        } else {
            return (true, val);
        }
    }

    /**
     * @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 key, uint256 value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (uint256(atKey), uint256(val));
    }

    /**
     * @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 exists, uint256 value) {
        (bool success, bytes32 val) = tryGet(map._inner, bytes32(key));
        return (success, uint256(val));
    }

    /**
     * @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;

        assembly ("memory-safe") {
            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 key, address value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (uint256(atKey), address(uint160(uint256(val))));
    }

    /**
     * @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 exists, address value) {
        (bool success, bytes32 val) = tryGet(map._inner, bytes32(key));
        return (success, address(uint160(uint256(val))));
    }

    /**
     * @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;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }

    // UintToBytes32Map

    struct UintToBytes32Map {
        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(UintToBytes32Map storage map, uint256 key, bytes32 value) internal returns (bool) {
        return set(map._inner, bytes32(key), 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(UintToBytes32Map 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(UintToBytes32Map 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(UintToBytes32Map 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(UintToBytes32Map storage map, uint256 index) internal view returns (uint256 key, bytes32 value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (uint256(atKey), val);
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(UintToBytes32Map storage map, uint256 key) internal view returns (bool exists, bytes32 value) {
        (bool success, bytes32 val) = tryGet(map._inner, bytes32(key));
        return (success, val);
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToBytes32Map storage map, uint256 key) internal view returns (bytes32) {
        return 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(UintToBytes32Map storage map) internal view returns (uint256[] memory) {
        bytes32[] memory store = keys(map._inner);
        uint256[] memory result;

        assembly ("memory-safe") {
            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 key, uint256 value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (address(uint160(uint256(atKey))), uint256(val));
    }

    /**
     * @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 exists, uint256 value) {
        (bool success, bytes32 val) = tryGet(map._inner, bytes32(uint256(uint160(key))));
        return (success, uint256(val));
    }

    /**
     * @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;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }

    // AddressToAddressMap

    struct AddressToAddressMap {
        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(AddressToAddressMap storage map, address key, address value) internal returns (bool) {
        return set(map._inner, bytes32(uint256(uint160(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(AddressToAddressMap 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(AddressToAddressMap 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(AddressToAddressMap 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(AddressToAddressMap storage map, uint256 index) internal view returns (address key, address value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (address(uint160(uint256(atKey))), address(uint160(uint256(val))));
    }

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

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(AddressToAddressMap storage map, address key) internal view returns (address) {
        return address(uint160(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(AddressToAddressMap storage map) internal view returns (address[] memory) {
        bytes32[] memory store = keys(map._inner);
        address[] memory result;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }

    // AddressToBytes32Map

    struct AddressToBytes32Map {
        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(AddressToBytes32Map storage map, address key, bytes32 value) internal returns (bool) {
        return set(map._inner, bytes32(uint256(uint160(key))), 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(AddressToBytes32Map 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(AddressToBytes32Map 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(AddressToBytes32Map 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(AddressToBytes32Map storage map, uint256 index) internal view returns (address key, bytes32 value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (address(uint160(uint256(atKey))), val);
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(AddressToBytes32Map storage map, address key) internal view returns (bool exists, bytes32 value) {
        (bool success, bytes32 val) = tryGet(map._inner, bytes32(uint256(uint160(key))));
        return (success, val);
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(AddressToBytes32Map storage map, address key) internal view returns (bytes32) {
        return 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(AddressToBytes32Map storage map) internal view returns (address[] memory) {
        bytes32[] memory store = keys(map._inner);
        address[] memory result;

        assembly ("memory-safe") {
            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 key, uint256 value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (atKey, uint256(val));
    }

    /**
     * @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 exists, uint256 value) {
        (bool success, bytes32 val) = tryGet(map._inner, key);
        return (success, uint256(val));
    }

    /**
     * @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;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }

    // Bytes32ToAddressMap

    struct Bytes32ToAddressMap {
        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(Bytes32ToAddressMap storage map, bytes32 key, address value) internal returns (bool) {
        return set(map._inner, 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(Bytes32ToAddressMap 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(Bytes32ToAddressMap 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(Bytes32ToAddressMap 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(Bytes32ToAddressMap storage map, uint256 index) internal view returns (bytes32 key, address value) {
        (bytes32 atKey, bytes32 val) = at(map._inner, index);
        return (atKey, address(uint160(uint256(val))));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(Bytes32ToAddressMap storage map, bytes32 key) internal view returns (bool exists, address value) {
        (bool success, bytes32 val) = tryGet(map._inner, key);
        return (success, address(uint160(uint256(val))));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(Bytes32ToAddressMap storage map, bytes32 key) internal view returns (address) {
        return address(uint160(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(Bytes32ToAddressMap storage map) internal view returns (bytes32[] memory) {
        bytes32[] memory store = keys(map._inner);
        bytes32[] memory result;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (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;

        assembly ("memory-safe") {
            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;

        assembly ("memory-safe") {
            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;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }
}

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

pragma solidity ^0.8.20;

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

pragma solidity ^0.8.20;

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

interface IMintableERC20 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);
}

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

pragma solidity ^0.8.20;

import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableMap.sol";
import "contracts/common/IMintableERC20.sol";
import "./AmoVault.sol";

/**
 * @title AmoManager
 * @dev Manages AMOs for dStable
 * 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;
    IMintableERC20 public dstable;
    CollateralVault public collateralHolderVault;

    uint256 public immutable BASE_UNIT;

    /* Events */

    event AmoVaultSet(address indexed amoVault, bool isActive);
    event AmoAllocated(address indexed amoVault, uint256 dstableAmount);
    event AmoDeallocated(address indexed amoVault, uint256 dstableAmount);
    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 CannotTransferDStable();
    error InsufficientProfits(
        uint256 takeProfitValueInBase,
        int256 availableProfitInBase
    );

    /**
     * @notice Initializes the AmoManager contract.
     * @param _dstable The address of the dStable stablecoin.
     * @param _collateralHolderVault The address of the collateral holder vault.
     * @param _oracle The oracle for price feeds.
     */
    constructor(
        address _dstable,
        address _collateralHolderVault,
        IPriceOracleGetter _oracle
    ) OracleAware(_oracle, _oracle.BASE_CURRENCY_UNIT()) {
        dstable = IMintableERC20(_dstable);
        collateralHolderVault = CollateralVault(_collateralHolderVault);

        BASE_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 dstableAmount The amount of dStable to allocate.
     */
    function allocateAmo(
        address amoVault,
        uint256 dstableAmount
    ) 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 + dstableAmount);

        // Make the deposit
        totalAllocated += dstableAmount;
        dstable.transfer(amoVault, dstableAmount);

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

        emit AmoAllocated(amoVault, dstableAmount);
    }

    /**
     * @notice Deallocates AMO tokens from an AMO vault.
     * @param amoVault The address of the AMO vault.
     * @param dstableAmount The amount of dStable to deallocate.
     */
    function deallocateAmo(
        address amoVault,
        uint256 dstableAmount
    ) 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 - dstableAmount);
        }

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

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

        emit AmoDeallocated(amoVault, dstableAmount);
    }

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

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

    /**
     * @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 base value.
     */
    function totalCollateralValue() public view returns (uint256) {
        uint256 totalBaseValue = 0;
        for (uint256 i = 0; i < _amoVaults.length(); i++) {
            (address vaultAddress, ) = _amoVaults.at(i);
            if (isAmoActive(vaultAddress)) {
                totalBaseValue += AmoVault(vaultAddress).totalCollateralValue();
            }
        }
        return totalBaseValue;
    }

    /**
     * @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(dstable)) {
            revert CannotTransferDStable();
        }

        // Update allocation
        // A note on why we modify AMO allocation when we withdraw collateral:
        // 1. When dStable AMO enters the AMO vault, the dStable is initially unbacked
        // 2. Over time the AMO vault accrues collateral in exchange for distributing dStable
        // 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 dStable 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 dStable is no longer
        //    unbacked, but is actually fully backed and circulating
        uint256 collateralBaseValue = collateralHolderVault
            .assetValueFromAmount(amount, token);
        uint256 collateralInDstable = baseValueToDstableAmount(
            collateralBaseValue
        );
        (, uint256 currentAllocation) = _amoVaults.tryGet(amoVault);

        // Prevent underflow by only deducting what's available
        uint256 adjustmentAmount = collateralInDstable;
        if (collateralInDstable > currentAllocation) {
            adjustmentAmount = currentAllocation;
        }

        _amoVaults.set(amoVault, currentAllocation - adjustmentAmount);
        totalAllocated -= adjustmentAmount;

        // 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(dstable)) {
            revert CannotTransferDStable();
        }
        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 dStable
        // 2. When we buy back dStable, the dStable is now unbacked (a redemption)
        // 3. Thus any collateral deposited to an AMO vault can create unbacked dStable,
        //    which means the AMO allocation for that vault must be increased to reflect this
        uint256 collateralBaseValue = collateralHolderVault
            .assetValueFromAmount(amount, token);
        uint256 collateralInDstable = baseValueToDstableAmount(
            collateralBaseValue
        );
        (, uint256 currentAllocation) = _amoVaults.tryGet(amoVault);
        _amoVaults.set(amoVault, currentAllocation + collateralInDstable);
        totalAllocated += collateralInDstable;

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

    /* Profit Management */

    /**
     * @notice Returns the available profit for a specific vault in base value (e.g., the underlying).
     * @param vaultAddress The address of the AMO vault to check.
     * @return The available profit in base (can be negative).
     */
    function availableVaultProfitsInBase(
        address vaultAddress
    ) public view returns (int256) {
        uint256 totalVaultValueInBase = AmoVault(vaultAddress).totalValue();
        uint256 allocatedDstable = amoVaultAllocation(vaultAddress);
        uint256 allocatedValueInBase = dstableAmountToBaseValue(
            allocatedDstable
        );

        return int256(totalVaultValueInBase) - int256(allocatedValueInBase);
    }

    /**
     * @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 takeProfitValueInBase The value of the withdrawn profits in base.
     */
    function withdrawProfits(
        AmoVault amoVault,
        address recipient,
        address takeProfitToken,
        uint256 takeProfitAmount
    )
        public
        onlyRole(FEE_COLLECTOR_ROLE)
        returns (uint256 takeProfitValueInBase)
    {
        // Leave open the possibility of withdrawing profits from inactive vaults

        takeProfitValueInBase = amoVault.assetValueFromAmount(
            takeProfitAmount,
            takeProfitToken
        );

        int256 _availableProfitInBase = availableVaultProfitsInBase(
            address(amoVault)
        );

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

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

        emit ProfitsWithdrawn(address(amoVault), takeProfitValueInBase);

        return takeProfitValueInBase;
    }

    /**
     * @notice Returns the total available profit across all AMO vaults in base.
     * @return The total available profit in base.
     */
    function availableProfitInBase() 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 += availableVaultProfitsInBase(vaultAddress);
            }
        }

        return totalProfit;
    }

    /* Utility */

    /**
     * @notice Converts a base value to an equivalent amount of dStable tokens.
     * @param baseValue The amount of base value to convert.
     * @return The equivalent amount of dStable tokens.
     */
    function baseValueToDstableAmount(
        uint256 baseValue
    ) public view returns (uint256) {
        uint8 dstableDecimals = dstable.decimals();
        return
            (baseValue * (10 ** dstableDecimals)) /
            (oracle.getAssetPrice(address(dstable)));
    }

    /**
     * @notice Converts an amount of dStable tokens to an equivalent base value.
     * @param dstableAmount The amount of dStable tokens to convert.
     * @return The equivalent amount of base value.
     */
    function dstableAmountToBaseValue(
        uint256 dstableAmount
    ) public view returns (uint256) {
        uint8 dstableDecimals = dstable.decimals();
        return
            (dstableAmount * oracle.getAssetPrice(address(dstable))) /
            (10 ** dstableDecimals);
    }

    /* 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.
     */
    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/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "contracts/common/IMintableERC20.sol";
import "./AmoManager.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "contracts/dstable/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 dStable and collateral assets
 */
abstract contract AmoVault is CollateralVault, IRecoverable, ReentrancyGuard {
    using SafeERC20 for IERC20;
    using Address for address payable;

    /* Core state */

    IMintableERC20 public immutable dstable;
    uint8 public immutable dstableDecimals;
    AmoManager public amoManager;

    /* Roles */

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

    /* Errors */

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

    constructor(
        address _dstable,
        address _amoManager,
        address _admin,
        address _collateralWithdrawer,
        address _recoverer,
        IPriceOracleGetter _oracle
    ) CollateralVault(_oracle) {
        dstable = IMintableERC20(_dstable);
        dstableDecimals = IERC20Metadata(_dstable).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 dStable 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) {
        dstable.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
        dstable.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(dstable) || 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-dStable collateral assets in the vault
     * @return The total value of collateral assets denominated in the base currency
     * @dev Must be implemented by derived contracts
     */
    function totalCollateralValue() public view virtual returns (uint256);

    /**
     * @notice Calculates the total value of dStable holdings in the vault
     * @return The total value of dStable holdings denominated in the base currency
     * @dev Must be implemented by derived contracts
     */
    function totalDstableValue() 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/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

import "contracts/common/IAaveOracle.sol";
import "./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, 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 baseValue The total value of all assets in base
     */
    function totalValue() public view virtual returns (uint256 baseValue);

    /**
     * @notice Calculates the base value of a given amount of an asset
     * @param assetAmount The amount of the asset
     * @param asset The address of the asset
     * @return baseValue The base value of the asset
     */
    function assetValueFromAmount(
        uint256 assetAmount,
        address asset
    ) public view returns (uint256 baseValue) {
        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 base value
     * @param baseValue The base value
     * @param asset The address of the asset
     * @return assetAmount The amount of the asset
     */
    function assetAmountFromValue(
        uint256 baseValue,
        address asset
    ) public view returns (uint256 assetAmount) {
        uint256 assetPrice = oracle.getAssetPrice(asset);
        uint8 assetDecimals = IERC20Metadata(asset).decimals();
        return (baseValue * (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 base value of all supported collateral assets in the vault
     * @dev Iterates through all supported collaterals and sums their base values
     * @return uint256 The total value in base
     */
    function _totalValueOfSupportedCollaterals()
        internal
        view
        returns (uint256)
    {
        uint256 totalBaseValue = 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);
            totalBaseValue += collateralValue;
        }
        return totalBaseValue;
    }
}

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

pragma solidity ^0.8.20;

import "@openzeppelin/contracts/access/AccessControl.sol";
import "contracts/common/IAaveOracle.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;
    }
}

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

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[{"inputs":[{"internalType":"address","name":"_collateralVault","type":"address"},{"internalType":"address","name":"_dstable","type":"address"},{"internalType":"contract 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":"uint256","name":"baseCurrencyUnit","type":"uint256"}],"name":"IncorrectBaseCurrencyUnit","type":"error"},{"inputs":[{"internalType":"uint256","name":"collateralInDstable","type":"uint256"},{"internalType":"uint256","name":"circulatingDstable","type":"uint256"}],"name":"IssuanceSurpassesExcessCollateral","type":"error"},{"inputs":[{"internalType":"uint256","name":"circulatingDstableBefore","type":"uint256"},{"internalType":"uint256","name":"circulatingDstableAfter","type":"uint256"}],"name":"MintingToAmoShouldNotIncreaseSupply","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[{"internalType":"uint256","name":"minDStable","type":"uint256"},{"internalType":"uint256","name":"dstableAmount","type":"uint256"}],"name":"SlippageTooHigh","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":"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":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"},{"inputs":[],"name":"AMO_MANAGER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"BASE_UNIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"amoManager","outputs":[{"internalType":"contract AmoManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseCurrencyUnit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"baseValue","type":"uint256"}],"name":"baseValueToDstableAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"circulatingDstable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"collateralInDstable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"collateralVault","outputs":[{"internalType":"contract CollateralVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dstable","outputs":[{"internalType":"contract IMintableERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dstableDecimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"dstableAmount","type":"uint256"}],"name":"increaseAmoSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"collateralAmount","type":"uint256"},{"internalType":"address","name":"collateralAsset","type":"address"},{"internalType":"uint256","name":"minDStable","type":"uint256"}],"name":"issue","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"dstableAmount","type":"uint256"}],"name":"issueUsingExcessCollateral","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"oracle","outputs":[{"internalType":"contract IPriceOracleGetter","name":"","type":"address"}],"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":"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"}]

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