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//SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol";
import {SoulBoundERC20BaseUpgradeable} from "./base/SoulBoundERC20BaseUpgradeable.sol";
import {SoulBoundPermitUpgradeable} from "./base/SoulBoundPermitUpgradeable.sol";
import {SoulBoundMintPermitUpgradeable} from "./base/SoulBoundMintPermitUpgradeable.sol";
import {IParabolSoulBoundToken} from "./interfaces/IParabolSoulBoundToken.sol";
import {IParabolSoulBoundTokenErrors} from "./interfaces/errors/IParabolSoulBoundTokenErrors.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";

/**
 * @title Parabol SoulBound Token
 * @notice Implements a non-transferable SoulBound token for the Parabol platform, following the EIP-20 standard with
 * extensions for upgradeability, access control, and pausability.
 * @dev This contract extends OpenZeppelin's upgradeable contracts for role-based access control, pausability, and
 * UUPS upgrades. It incorporates SoulBound token functionality, disallowing transfers after minting, to represent
 * non-transferable assets on the blockchain.
 */
contract ParabolSoulBoundToken is
    UUPSUpgradeable,
    AccessControlUpgradeable,
    PausableUpgradeable,
    SoulBoundPermitUpgradeable,
    SoulBoundMintPermitUpgradeable,
    IParabolSoulBoundToken,
    IParabolSoulBoundTokenErrors
{
    /**
     * @dev Roles for burning tokens and pausing the contract, represented by their respective bytes32 identifiers.
     */
    bytes32 public constant BURNER_ROLE =
        0x3c11d16cbaffd01df69ce1c404f6340ee057498f5f00246190ea54220576a848;
    bytes32 public constant PAUSER_ROLE =
        0x65d7a28e3265b37a6474929f336521b332c1681b933f6cb9f3376673440d862a;

    struct ParabolSoulBoundTokenStorage {
        Counter _orderCounter;
        Counter _stageCounter;
        mapping(address account => mapping(uint256 orderId => uint256 balance)) _orderBalances;
        mapping(address account => mapping(uint256 stageId => uint256 balance)) _stageBalances;
        mapping(uint256 stageId => StageInfo) _stageInfo;
    }

    // keccak256(abi.encode(uint256(keccak256("parabol.storage.ParabolSoulBoundToken")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ParabolSoulBoundTokenStorageLocation =
        0x9c4c4830eaf0ddba8723c7ca664593310d9079d35a5b95dd01a24180d77b8f00;

    /**
     * @dev Internal function to access the contract's custom storage structure. Uses EVM assembly for direct
     * storage interaction, optimizing for efficient data storage and retrieval. The unique storage location
     * is calculated to avoid collisions with other contracts.
     * @return $ A reference to the contract's custom storage structure.
     */
    function _getParabolSoulBoundTokenStorage()
        private
        pure
        returns (ParabolSoulBoundTokenStorage storage $)
    {
        assembly {
            $.slot := ParabolSoulBoundTokenStorageLocation
        }
    }

    /**
     * @dev Returns the current order counter value.
     * @return The current value of the order counter.
     */
    function orderCounter() external view returns (uint256) {
        return _getParabolSoulBoundTokenStorage()._orderCounter._value;
    }

    /**
     * @dev Returns the current stage counter value.
     * @return The current value of the stage counter.
     */
    function stageCounter() external view returns (uint256) {
        return _getParabolSoulBoundTokenStorage()._stageCounter._value;
    }

    /**
     * @dev Returns the balance of a given stage for a specific account.
     * @param account The address of the account.
     * @param stageId The identifier of the stage.
     * @return The balance of the specified stage for the given account.
     */
    function stageBalances(
        address account,
        uint256 stageId
    ) external view returns (uint256) {
        return
            _getParabolSoulBoundTokenStorage()._stageBalances[account][stageId];
    }

    /**
     * @dev Returns the balance of a given order for a specific account.
     * @param account The address of the account.
     * @param order The identifier of the order.
     * @return The balance of the specified order for the given account.
     */
    function orderBalances(
        address account,
        uint256 order
    ) external view returns (uint256) {
        return
            _getParabolSoulBoundTokenStorage()._orderBalances[account][order];
    }

    /**
     * @dev Returns information about a specific stage.
     * @param stage The identifier of the stage.
     * @return A StageInfo struct containing details about the stage.
     */
    function stageInfo(uint256 stage) external view returns (StageInfo memory) {
        return _getParabolSoulBoundTokenStorage()._stageInfo[stage];
    }

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Initializes the contract with given parameters, setting up roles and initializing base contracts.
     * @dev Sets initial values for token metadata and roles, initializing inherited contracts. Reverts if critical
     * addresses are zero.
     * @param name_ Token name.
     * @param symbol_ Token symbol.
     * @param version_ Contract version.
     * @param pauser_ Address with the pauser role.
     * @param signer_ Address for mint permit signatures.
     * @param admin_ Address with the default admin role.
     */
    function initialize(
        string memory name_,
        string memory symbol_,
        string memory version_,
        address pauser_,
        address signer_,
        address admin_
    ) external initializer {
        if (
            pauser_ == address(0) ||
            signer_ == address(0) ||
            admin_ == address(0)
        ) revert ParabolSoulBoundToken__ZeroAddress();
        __SoulBoundERC20Base_init_unchained(name_, symbol_, version_);
        __SoulBoundMintPermit_init_unchained(signer_);
        __Pausable_init_unchained();

        _grantRole(DEFAULT_ADMIN_ROLE, admin_);
        _grantRole(PAUSER_ROLE, pauser_);
        _setRoleAdmin(BURNER_ROLE, DEFAULT_ADMIN_ROLE);
        _setRoleAdmin(PAUSER_ROLE, DEFAULT_ADMIN_ROLE);
    }

    /**
     * @notice Starts a new stage for minting with specific caps and limits.
     * @dev Only callable by the default admin role. Validates input parameters and updates stage storage.
     * @param cap Maximum number of tokens that can be minted in this stage.
     * @param accountMintLimit Maximum number of tokens an account can mint in this stage.
     * @param endTimestamp Timestamp when the stage ends.
     */
    function startStage(
        uint256 cap,
        uint256 accountMintLimit,
        uint256 endTimestamp
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        if (cap == 0) revert ParabolSoulBoundToken__ZeroCap();
        if (accountMintLimit == 0)
            revert ParabolSoulBoundToken__ZeroAccountMintLimit();
        if (endTimestamp <= block.timestamp)
            revert ParabolSoulBoundToken__InvalidStageEndTimestamp(
                endTimestamp,
                block.timestamp
            );

        uint256 stageId = _incrementAndGetStageId();
        _getParabolSoulBoundTokenStorage()._stageInfo[stageId] = StageInfo({
            cap: cap,
            minted: 0,
            accountMintLimit: accountMintLimit,
            endTimestamp: endTimestamp
        });

        emit StartStage(stageId, cap, accountMintLimit, endTimestamp);
    }

    /**
     * @notice Pauses all actions affecting token balances. Can only be called by the account with the pauser role.
     * @dev This function pauses the contract, preventing execution of actions that alter token balances,
     * such as minting or burning. It's a security feature to halt operations in case of an emergency.
     */
    function pause() external onlyRole(PAUSER_ROLE) {
        _pause();
    }

    /**
     * @notice Unpauses all actions affecting token balances. Can only be called by the account with the pauser role.
     * @dev This function unpauses the contract, allowing execution of actions that alter token balances,
     * such as minting or burning. It should be used with caution, ensuring that the reasons for initially
     * pausing the contract have been resolved.
     */
    function unpause() external onlyRole(PAUSER_ROLE) {
        _unpause();
    }

    /**
     * @notice Mints tokens to the specified account based on the provided mint permit. Can only be executed
     * when the contract is not paused.
     * @dev Validates the mint permit and stage conditions before minting tokens. It updates the internal storage
     * to reflect the minted tokens. Reverts if mint conditions are not met or the mint permit is invalid.
     * @param mintPermit The mint permit containing authorization details for minting.
     * @param signature The signature of the mint permit, proving authorization.
     * @param mintAmount The amount of tokens to mint.
     */
    function mint(
        MintPermit calldata mintPermit,
        Signature calldata signature,
        uint256 mintAmount
    ) external whenNotPaused {
        if (mintPermit.owner == address(0))
            revert ParabolSoulBoundToken__ZeroAddress();
        if (mintPermit.amount == 0) revert ParabolSoulBoundToken__ZeroAmount();

        _validateMintPermitSignature(mintPermit, signature);
        _validateStageAndUpdateMinted(mintAmount, mintPermit.stageId);
        _validateAndUpdateStageBalance(
            mintPermit.owner,
            mintPermit.stageId,
            mintPermit.amount,
            mintAmount
        );

        uint256 orderId = _incrementAndGetOrderId();
        _getParabolSoulBoundTokenStorage()._orderBalances[mintPermit.owner][
                orderId
            ] = mintAmount;

        _mint(mintPermit.owner, mintAmount);
        emit Mint(mintPermit.owner, mintAmount, mintPermit.stageId, orderId);
    }

    /**
     * @notice Burns the specified amount of tokens from an order. Can only be executed by the account with
     * the burner role and when the contract is not paused.
     * @dev Validates the order and amount before burning tokens. It updates the internal storage to reflect
     * the burned tokens. Reverts if burn conditions are not met.
     * @param account The account from which tokens will be burned.
     * @param amount The amount of tokens to burn.
     * @param orderId The identifier of the order from which tokens are burned.
     */
    function burn(
        address account,
        uint256 amount,
        uint256 orderId
    ) external whenNotPaused onlyRole(BURNER_ROLE) {
        if (account == address(0)) revert ParabolSoulBoundToken__ZeroAddress();
        if (amount == 0) revert ParabolSoulBoundToken__ZeroAmount();
        if (orderId > _getParabolSoulBoundTokenStorage()._orderCounter._value)
            revert ParabolSoulBoundToken__OrderNotExists(orderId);
        if (allowance(account, msg.sender) < amount)
            revert ParabolSoulBoundToken__InsufficientAllowance(
                msg.sender,
                allowance(account, msg.sender),
                amount
            );
        _validateAndDecreaseOrderBalance(account, orderId, amount);
        _spendAllowance(account, msg.sender, amount);
        _burn(account, amount);
        emit Burn(account, amount, orderId);
    }

    /**
     * @dev Returns the domain separator used in the EIP-712 domain structure.
     * @return The domain separator.
     */
    function DOMAIN_SEPARATOR()
        public
        view
        override(SoulBoundERC20BaseUpgradeable, SoulBoundPermitUpgradeable)
        returns (bytes32)
    {
        return SoulBoundERC20BaseUpgradeable.DOMAIN_SEPARATOR();
    }

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {burn}. This is
     * zero by default.
     * @param owner address The address which owns the funds.
     * @param spender address The address which will spend the funds.
     * @return The remaining amount of tokens `spender` is allowed to spend.
     */
    function allowance(
        address owner,
        address spender
    )
        public
        view
        override(SoulBoundERC20BaseUpgradeable, IParabolSoulBoundToken)
        returns (uint256)
    {
        return SoulBoundERC20BaseUpgradeable.allowance(owner, spender);
    }

    /**
     * @dev Reverts as transfers are disabled in this SoulBound token implementation.
     */
    function transfer(address, uint256) public pure returns (bool) {
        revert ParabolSoulBoundToken__TransferDisabled();
    }

    /**
     * @dev Reverts as transferFrom operations are disabled in this SoulBound token implementation.
     */
    function transferFrom(
        address,
        address,
        uint256
    ) public pure returns (bool) {
        revert ParabolSoulBoundToken__TransferDisabled();
    }

    /**
     * @dev Internal function to increment and return the next stage ID.
     * @return The next stage ID.
     */
    function _incrementAndGetStageId() internal returns (uint256) {
        ParabolSoulBoundTokenStorage
            storage $ = _getParabolSoulBoundTokenStorage();

        unchecked {
            return ++$._stageCounter._value;
        }
    }

    /**
     * @dev Internal function to validate the current stage and update the amount minted.
     * @param amount The amount to mint.
     * @param stageId The stage ID to validate against.
     */
    function _validateStageAndUpdateMinted(
        uint256 amount,
        uint256 stageId
    ) internal {
        ParabolSoulBoundTokenStorage
            storage $ = _getParabolSoulBoundTokenStorage();
        StageInfo storage _stageInfo = $._stageInfo[stageId];

        if ($._stageCounter._value < stageId)
            revert ParabolSoulBoundToken__StageNotExists(stageId);

        if (_stageInfo.endTimestamp < block.timestamp)
            revert ParabolSoulBoundToken__StageEnded(
                stageId,
                _stageInfo.endTimestamp,
                block.timestamp
            );

        uint256 totalMinted = _stageInfo.minted + amount;
        if (totalMinted > _stageInfo.cap)
            revert ParabolSoulBoundToken__StageCapReached(
                stageId,
                _stageInfo.cap,
                _stageInfo.minted,
                amount
            );

        _stageInfo.minted = totalMinted;
    }

    /**
     * @dev Internal function to validate and update the stage balance for minting operations.
     * @param owner The owner of the tokens.
     * @param stageId The stage ID to validate against.
     * @param allowedAmount The amount allowed to mint.
     * @param mintAmount The amount to mint.
     */
    function _validateAndUpdateStageBalance(
        address owner,
        uint256 stageId,
        uint256 allowedAmount,
        uint256 mintAmount
    ) internal {
        ParabolSoulBoundTokenStorage
            storage $ = _getParabolSoulBoundTokenStorage();

        StageInfo storage _stageInfo = $._stageInfo[stageId];

        uint256 totalAmount = $._stageBalances[owner][stageId] + mintAmount;

        if (totalAmount > allowedAmount)
            revert ParabolSoulBoundToken__StageBalanceLimitExceeded(
                stageId,
                allowedAmount,
                totalAmount
            );
        if (totalAmount > _stageInfo.accountMintLimit)
            revert ParabolSoulBoundToken__StageAccountMintLimitExceeded(
                stageId,
                _stageInfo.accountMintLimit,
                totalAmount
            );

        $._stageBalances[owner][stageId] = totalAmount;
    }

    /**
     * @dev Internal function to increment and return the next order ID.
     * @return The next order ID.
     */
    function _incrementAndGetOrderId() internal returns (uint256) {
        ParabolSoulBoundTokenStorage
            storage $ = _getParabolSoulBoundTokenStorage();

        unchecked {
            return ++$._orderCounter._value;
        }
    }

    /**
     * @dev Internal function to validate and decrease the order balance for burn operations.
     * @param account The account from which tokens are burned.
     * @param orderId The order ID to validate against.
     * @param burnAmount The amount of tokens to burn.
     */
    function _validateAndDecreaseOrderBalance(
        address account,
        uint256 orderId,
        uint256 burnAmount
    ) internal {
        ParabolSoulBoundTokenStorage
            storage $ = _getParabolSoulBoundTokenStorage();
        uint256 orderAmount = $._orderBalances[account][orderId];

        if (orderAmount < burnAmount)
            revert ParabolSoulBoundToken__InsufficientOrderAmount(
                orderAmount,
                burnAmount
            );

        if (orderAmount == burnAmount) {
            delete $._orderBalances[account][orderId];
        } else {
            unchecked {
                $._orderBalances[account][orderId] -= burnAmount;
            }
        }
    }

    /**
     * @notice Sets a new signer for mint permits.
     * @dev Only callable by the default admin role. Updates the signer for mint permits.
     * @param signer The new signer address.
     */
    function setMintPermitSigner(
        address signer
    ) external override onlyRole(DEFAULT_ADMIN_ROLE) {
        _setMintPermitSigner(signer);
    }

    /**
     * @dev Internal function to authorize contract upgrades. Only callable by the default admin role.
     * @param newImplementation The address of the new contract implementation.
     */
    function _authorizeUpgrade(
        address newImplementation
    ) internal override onlyRole(DEFAULT_ADMIN_ROLE) {}
}

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

pragma solidity ^0.8.20;

import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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 AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;


    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
    struct AccessControlStorage {
        mapping(bytes32 role => RoleData) _roles;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;

    function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
        assembly {
            $.slot := AccessControlStorageLocation
        }
    }

    /**
     * @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);
        _;
    }

    function __AccessControl_init() internal onlyInitializing {
    }

    function __AccessControl_init_unchained() internal onlyInitializing {
    }
    /**
     * @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) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        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) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        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 {
        AccessControlStorage storage $ = _getAccessControlStorage();
        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) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        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) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (hasRole(role, account)) {
            $._roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

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

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

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

pragma solidity ^0.8.20;

import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable __self = address(this);

    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
     * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev The call is from an unauthorized context.
     */
    error UUPSUnauthorizedCallContext();

    /**
     * @dev The storage `slot` is unsupported as a UUID.
     */
    error UUPSUnsupportedProxiableUUID(bytes32 slot);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        _checkProxy();
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        _checkNotDelegated();
        _;
    }

    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual notDelegated returns (bytes32) {
        return ERC1967Utils.IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     *
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data);
    }

    /**
     * @dev Reverts if the execution is not performed via delegatecall or the execution
     * context is not of a proxy with an ERC1967-compliant implementation pointing to self.
     * See {_onlyProxy}.
     */
    function _checkProxy() internal view virtual {
        if (
            address(this) == __self || // Must be called through delegatecall
            ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
        ) {
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Reverts if the execution is performed via delegatecall.
     * See {notDelegated}.
     */
    function _checkNotDelegated() internal view virtual {
        if (address(this) != __self) {
            // Must not be called through delegatecall
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
     *
     * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
     * is expected to be the implementation slot in ERC1967.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
        try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
            if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
                revert UUPSUnsupportedProxiableUUID(slot);
            }
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        } catch {
            // The implementation is not UUPS
            revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
        }
    }
}

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

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

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

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

pragma solidity ^0.8.20;

import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165Upgradeable is Initializable, IERC165 {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

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

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Pausable
    struct PausableStorage {
        bool _paused;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;

    function _getPausableStorage() private pure returns (PausableStorage storage $) {
        assembly {
            $.slot := PausableStorageLocation
        }
    }

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

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

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

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

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
    }

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

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

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

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

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

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

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

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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1271.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC1271 standard signature validation method for
 * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
 */
interface IERC1271 {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param hash      Hash of the data to be signed
     * @param signature Signature byte array associated with _data
     */
    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {UpgradeableBeacon} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)

pragma solidity ^0.8.20;

import {IBeacon} from "../beacon/IBeacon.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 */
library ERC1967Utils {
    // We re-declare ERC-1967 events here because they can't be used directly from IERC1967.
    // This will be fixed in Solidity 0.8.21. At that point we should remove these events.
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev The `implementation` of the proxy is invalid.
     */
    error ERC1967InvalidImplementation(address implementation);

    /**
     * @dev The `admin` of the proxy is invalid.
     */
    error ERC1967InvalidAdmin(address admin);

    /**
     * @dev The `beacon` of the proxy is invalid.
     */
    error ERC1967InvalidBeacon(address beacon);

    /**
     * @dev An upgrade function sees `msg.value > 0` that may be lost.
     */
    error ERC1967NonPayable();

    /**
     * @dev Returns the current implementation address.
     */
    function getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        if (newImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(newImplementation);
        }
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Performs implementation upgrade with additional setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);

        if (data.length > 0) {
            Address.functionDelegateCall(newImplementation, data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        if (newAdmin == address(0)) {
            revert ERC1967InvalidAdmin(address(0));
        }
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {IERC1967-AdminChanged} event.
     */
    function changeAdmin(address newAdmin) internal {
        emit AdminChanged(getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        if (newBeacon.code.length == 0) {
            revert ERC1967InvalidBeacon(newBeacon);
        }

        StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;

        address beaconImplementation = IBeacon(newBeacon).implementation();
        if (beaconImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(beaconImplementation);
        }
    }

    /**
     * @dev Change the beacon and trigger a setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-BeaconUpgraded} event.
     *
     * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
     * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
     * efficiency.
     */
    function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);

        if (data.length > 0) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
     * if an upgrade doesn't perform an initialization call.
     */
    function _checkNonPayable() private {
        if (msg.value > 0) {
            revert ERC1967NonPayable();
        }
    }
}

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

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

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

pragma solidity ^0.8.20;

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

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

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

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

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

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

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

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

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

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

pragma solidity ^0.8.20;

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

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

pragma solidity ^0.8.20;

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

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

import {ISoulBoundERC20Base} from "../interfaces/ISoulBoundERC20Base.sol";
import {ISoulBoundERC20BaseErrors} from "../interfaces/errors/ISoulBoundERC20BaseErrors.sol";
import {ContextUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {IERC1271} from "@openzeppelin/contracts/interfaces/IERC1271.sol";

/**
 * @title SoulBound ERC20 Base Upgradeable
 * @notice Provides a foundational ERC20 structure for SoulBound tokens, introducing basic functionalities
 * such as balance tracking and token metadata, adapted to the SoulBound concept where tokens cannot be transferred.
 * @dev This contract extends OpenZeppelin's ContextUpgradeable for operating in an upgradeable contract context.
 * It implements the ISoulBoundERC20Base interface while adhering to the non-transferability nature of SoulBound tokens.
 * Token balances are tracked, but transfer functions are intentionally omitted or modified to prevent token movement.
 */
abstract contract SoulBoundERC20BaseUpgradeable is
    Initializable,
    ContextUpgradeable,
    ISoulBoundERC20Base,
    ISoulBoundERC20BaseErrors
{
    struct SoulBoundERC20BaseStorage {
        mapping(address account => uint256) _balances;
        mapping(address account => mapping(address spender => uint256)) _allowances;
        uint256 _totalSupply;
        string _name;
        string _symbol;
        //@notice The keccak256 hash of the token's name used in the permit signature verification
        bytes32 _nameHash;
        //@notice The keccak256 hash of the token's version used in the permit signature verification
        bytes32 _versionHash;
    }

    // keccak256(abi.encode(uint256(keccak256("parabol.storage.SoulBoundERC20Base")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant SoulBoundERC20BaseStorageLocation =
        0xc48bcc4443aed8a1e6b73bae33c0732495d4a45af3fee1bf2ff284030c854600;

    function _getSoulBoundERC20BaseStorage()
        private
        pure
        returns (SoulBoundERC20BaseStorage storage $)
    {
        assembly {
            $.slot := SoulBoundERC20BaseStorageLocation
        }
    }

    /**
     * @dev Initializes the SoulBound token with a name, symbol, and version. These are immutable after initial setup.
     * @param name_ The name of the token.
     * @param symbol_ The symbol of the token.
     * @param version_ The version of the contract, used in permit signature verification.
     */
    function __SoulBoundERC20Base_init(
        string memory name_,
        string memory symbol_,
        string memory version_
    ) internal onlyInitializing {
        __SoulBoundERC20Base_init_unchained(name_, symbol_, version_);
    }

    function __SoulBoundERC20Base_init_unchained(
        string memory name_,
        string memory symbol_,
        string memory version_
    ) internal onlyInitializing {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        $._name = name_;
        $._symbol = symbol_;
        $._nameHash = keccak256(bytes(name_));
        $._versionHash = keccak256(bytes(version_));
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        return $._name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        return $._symbol;
    }

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

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        return $._totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        return $._balances[account];
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(
        address owner,
        address spender
    ) public view virtual returns (uint256) {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        return $._allowances[owner][spender];
    }

    /**
     * @dev Returns the domain separator used in the encoding of the signature for permits.
     * @return The EIP-712 domain separator.
     */
    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        return
            keccak256(
                abi.encode(
                    // keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)')
                    0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f,
                    $._nameHash,
                    $._versionHash,
                    block.chainid,
                    address(this)
                )
            );
    }

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

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            $._totalSupply += value;
        } else {
            uint256 fromBalance = $._balances[from];
            if (fromBalance < value) {
                revert SoulBoundERC20Base__InsufficientBalance(
                    from,
                    fromBalance,
                    value
                );
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                $._balances[from] = fromBalance - value;
            }
        }

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

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert SoulBoundERC20Base__InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert SoulBoundERC20Base__InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(
        address owner,
        address spender,
        uint256 value,
        bool emitEvent
    ) internal virtual {
        SoulBoundERC20BaseStorage storage $ = _getSoulBoundERC20BaseStorage();
        if (owner == address(0)) {
            revert SoulBoundERC20Base__InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert SoulBoundERC20Base__InvalidSpender(address(0));
        }
        $._allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 value
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert SoulBoundERC20Base__InsufficientAllowance(
                    spender,
                    currentAllowance,
                    value
                );
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }

    /**
     * @dev Validates a given signature as per EIP-1271, if the signer is a contract, or EIP-712, if the signer is an EOA.
     * @param owner The presumed owner of the signature.
     * @param dataHash The hash of the data signed.
     * @param v The recovery byte of the signature.
     * @param r The first 32 bytes of the signature.
     * @param s The second 32 bytes of the signature.
     * @param isMintPermit A boolean indicating if the validation is for a mint permit.
     */
    function _requireValidSignature(
        address owner,
        bytes32 dataHash,
        uint8 v,
        bytes32 r,
        bytes32 s,
        bool isMintPermit
    ) internal view {
        bytes32 domainSeparator = DOMAIN_SEPARATOR();

        bytes32 digest;
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, hex"19_01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), dataHash)
            digest := keccak256(ptr, 0x42)
        }

        if (isMintPermit) {
            address recoveredAddress = ecrecover(digest, v, r, s);
            if (recoveredAddress == address(0))
                revert SoulBoundERC20Base__InvalidSignature();
            if (recoveredAddress != owner)
                revert SoulBoundERC20Base__InvalidSigner(
                    recoveredAddress,
                    owner
                );
        } else {
            uint256 size;
            // solhint-disable-next-line no-inline-assembly
            assembly {
                size := extcodesize(owner)
            }

            if (size > 0) {
                if (
                    IERC1271(owner).isValidSignature(
                        digest,
                        abi.encodePacked(r, s, v)
                    ) != 0x1626ba7e // isValidSignature.selector
                ) {
                    revert SoulBoundERC20Base__InvalidSignature();
                }
            } else {
                address recoveredAddress = ecrecover(digest, v, r, s);
                if (recoveredAddress == address(0))
                    revert SoulBoundERC20Base__InvalidSignature();
                if (recoveredAddress != owner)
                    revert SoulBoundERC20Base__InvalidSigner(
                        recoveredAddress,
                        owner
                    );
            }
        }
    }
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {ISoulBoundMintPermit} from "../interfaces/ISoulBoundMintPermit.sol";
import {ISoulBoundMintPermitErrors} from "../interfaces/errors/ISoulBoundMintPermitErrors.sol";
import {SoulBoundERC20BaseUpgradeable} from "./SoulBoundERC20BaseUpgradeable.sol";

/**
 * @title SoulBound Mint Permit Upgradeable
 * @notice Adds minting functionality with permit to the SoulBound token, allowing token minting based
 * on signed permissions.
 * @dev This contract extends the SoulBound ERC-20 base functionality to include minting based on permits,
 * facilitating a more flexible minting process that doesn't require direct blockchain transactions by the minter.
 * It introduces a permit mechanism for minting, where a signed message can authorize an address to mint tokens.
 */
abstract contract SoulBoundMintPermitUpgradeable is
    Initializable,
    SoulBoundERC20BaseUpgradeable,
    ISoulBoundMintPermitErrors,
    ISoulBoundMintPermit
{
    // keccak256("MintPermit(address owner,uint256 amount,uint256 stageId)")
    bytes32 private constant MINT_PERMIT_TYPEHASH =
        0xe6595996b7bed1637680b4cd86058d60a6e7466a44f2f733b49ef571d6cd1b81;

    struct SoulBoundMintPermitStorage {
        address _signer;
    }

    // keccak256(abi.encode(uint256(keccak256("parabol.storage.SoulBoundMintPermit")) - 1)) & ~bytes32(uint256(0xff));
    bytes32 private constant SoulBoundMintPermitStorageLocation =
        0x8f1b20cbbba575d151776600aed9b8f8a953d65407ee4f743f3a3acfab080000;

    function _getSoulBoundMintPermitStorage()
        private
        pure
        returns (SoulBoundMintPermitStorage storage $)
    {
        assembly {
            $.slot := SoulBoundMintPermitStorageLocation
        }
    }

    /**
     * @dev Initializes the mint permit mechanism with a designated signer.
     * @param signer_ The address authorized to sign mint permits.
     */
    function __SoulBoundMintPermit_init(
        address signer_
    ) internal onlyInitializing {
        __SoulBoundMintPermit_init_unchained(signer_);
    }

    function __SoulBoundMintPermit_init_unchained(
        address signer_
    ) internal onlyInitializing {
        SoulBoundMintPermitStorage storage $ = _getSoulBoundMintPermitStorage();
        $._signer = signer_;
    }

    /**
     * @dev Internal function to validate a mint permit's signature before minting tokens.
     * Checks that the signature is valid and corresponds to the specified parameters.
     * @param mintPermit The mint permit details including the owner, amount, and stageId.
     * @param signature The signature details including v, r, and s.
     */
    function _validateMintPermitSignature(
        MintPermit calldata mintPermit,
        Signature calldata signature
    ) internal view {
        if (msg.sender != mintPermit.owner)
            revert SoulBoundMintPermit__InvalidCaller(
                msg.sender,
                mintPermit.owner
            );

        _requireValidSignature(
            _getSoulBoundMintPermitStorage()._signer,
            keccak256(
                abi.encode(
                    MINT_PERMIT_TYPEHASH,
                    mintPermit.owner,
                    mintPermit.amount,
                    mintPermit.stageId
                )
            ),
            signature.v,
            signature.r,
            signature.s,
            true
        );
    }

    /**
     * @notice Sets a new signer for the mint permits, allowing dynamic updates to the signing authority.
     * This function must be overridden in the implementing contract to include access control mechanisms.
     * @param newSigner The address of the new signer.
     */
    function setMintPermitSigner(address newSigner) external virtual;

    /**
     * @dev Updates the signer address used for mint permits. Intended to be called by the contract owner.
     * @param newSigner The new signer address.
     */
    function _setMintPermitSigner(address newSigner) internal {
        SoulBoundMintPermitStorage storage $ = _getSoulBoundMintPermitStorage();

        if (newSigner == address(0)) revert SoulBoundMintPermit__ZeroAddress();

        if (newSigner == $._signer) revert SoulBoundMintPermit__SameSigner();

        $._signer = newSigner;
        emit SoulBoundMintPermit__SetMintPermitSigner(newSigner);
    }
}

//SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

import {SoulBoundERC20BaseUpgradeable} from "./SoulBoundERC20BaseUpgradeable.sol";
import {NoncesUpgradeable} from "../utils/NoncesUpgradeable.sol";
import {SoulBoundPermitErrors} from "../interfaces/errors/SoulBoundPermitErrors.sol";
import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";

/**
 * @title SoulBound Permit Upgradeable
 * @notice Enables ERC-20 permit functionality in a SoulBound token context, allowing token allowances
 * to be managed via signatures, conforming to the EIP-2612 standard.
 * @dev Extends the SoulBound ERC-20 base contract to include permit functionality, integrating EIP-2612's
 * permit approach to manage allowances without sending transactions. This contract includes functions to support
 * permit-based allowance management. It is abstract and intended
 * to be extended by other contracts requiring permit functionality.
 */
abstract contract SoulBoundPermitUpgradeable is
    SoulBoundERC20BaseUpgradeable,
    NoncesUpgradeable,
    SoulBoundPermitErrors,
    IERC20Permit
{
    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 private constant PERMIT_TYPEHASH =
        0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;

    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external {
        if (block.timestamp > deadline)
            revert SoulBoundPermit__ExpiredSignature(deadline);

        _requireValidSignature(
            owner,
            keccak256(
                abi.encode(
                    PERMIT_TYPEHASH,
                    owner,
                    spender,
                    value,
                    _useNonce(owner),
                    deadline
                )
            ),
            v,
            r,
            s,
            false
        );
        _approve(owner, spender, value);
    }

    /**
     * @dev Retrieves the current nonce for `owner`. This value must be included in the permit
     * signature and is incremented after each successful permit call, preventing replay attacks.
     * @param owner The address whose nonce is being queried.
     * @return The current nonce for `owner`.
     */
    function nonces(
        address owner
    )
        public
        view
        virtual
        override(NoncesUpgradeable, IERC20Permit)
        returns (uint256)
    {
        return NoncesUpgradeable.nonces(owner);
    }

    /**
     * @dev Returns the domain separator used in the encoding of the signature for permits,
     * as defined by EIP-712.
     * @return The domain separator for the contract.
     */
    function DOMAIN_SEPARATOR()
        public
        view
        virtual
        override(SoulBoundERC20BaseUpgradeable, IERC20Permit)
        returns (bytes32)
    {
        return SoulBoundERC20BaseUpgradeable.DOMAIN_SEPARATOR();
    }
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

/**
 * @title Interface for Parabol SoulBound Token Errors
 * @notice Provides a standardized way to handle errors specific to Parabol SoulBound Token.
 * @dev This interface lists custom errors for the Parabol SoulBound Token contract, enhancing clarity and
 * specificity in error reporting. These errors are intended to be used across minting, burning, and token
 * management functionalities within the contract.
 */
interface IParabolSoulBoundTokenErrors {
    /**
     * @dev Error indicating a zero address where a valid address is required.
     */
    error ParabolSoulBoundToken__ZeroAddress();

    /**
     * @dev Error indicating an operation attempted with a zero amount, where a non-zero amount is required.
     */
    error ParabolSoulBoundToken__ZeroAmount();

    /**
     * @dev Error for when an operation fails due to the spender having insufficient allowance.
     * @param spender The address attempting to spend tokens.
     * @param allowance The current allowance for the spender.
     * @param needed The required allowance to complete the operation.
     */
    error ParabolSoulBoundToken__InsufficientAllowance(
        address spender,
        uint256 allowance,
        uint256 needed
    );

    /**
     * @dev Error indicating an attempt to operate with an amount exceeding the balance or limit.
     * @param balance The current balance or limit being checked.
     * @param needed The amount required for the operation.
     */
    error ParabolSoulBoundToken__InsufficientOrderAmount(
        uint256 balance,
        uint256 needed
    );

    /**
     * @dev Error indicating an operation referencing a stage ID that does not exist.
     * @param stageId The non-existent stage ID.
     */
    error ParabolSoulBoundToken__StageNotExists(uint256 stageId);

    /**
     * @dev Error indicating an operation referencing an order ID that does not exist.
     * @param orderId The non-existent order ID.
     */
    error ParabolSoulBoundToken__OrderNotExists(uint256 orderId);

    /**
     * @dev Error indicating an attempt to interact with a stage that has already ended.
     * @param stageId The ID of the stage attempted to be interacted with.
     * @param endTimestamp The end timestamp of the stage.
     * @param currentTimestamp The current timestamp at the moment of the operation.
     */
    error ParabolSoulBoundToken__StageEnded(
        uint256 stageId,
        uint256 endTimestamp,
        uint256 currentTimestamp
    );

    /**
     * @dev Error indicating an attempt to mint tokens exceeding the cap for a given stage.
     * @param stageId The stage ID being interacted with.
     * @param cap The cap for the stage.
     * @param minted The amount already minted in the stage.
     * @param amount The amount attempted to be minted.
     */
    error ParabolSoulBoundToken__StageCapReached(
        uint256 stageId,
        uint256 cap,
        uint256 minted,
        uint256 amount
    );

    /**
     * @dev Error indicating an attempt to mint tokens exceeding the balance limit for a specific stage.
     * @param stageId The stage ID being interacted with.
     * @param limit The balance limit for the stage.
     * @param amount The amount attempted to be minted.
     */
    error ParabolSoulBoundToken__StageBalanceLimitExceeded(
        uint256 stageId,
        uint256 limit,
        uint256 amount
    );

    /**
     * @dev Error indicating an attempt to mint tokens exceeding the account mint limit for a specific stage.
     * @param stageId The stage ID being interacted with.
     * @param limit The account mint limit for the stage.
     * @param amount The amount attempted to be minted.
     */
    error ParabolSoulBoundToken__StageAccountMintLimitExceeded(
        uint256 stageId,
        uint256 limit,
        uint256 amount
    );

    /**
     * @dev Error indicating a zero cap where a non-zero cap is required for stage creation.
     */
    error ParabolSoulBoundToken__ZeroCap();

    /**
     * @dev Error indicating a zero account mint limit where a non-zero limit is required for stage creation.
     */
    error ParabolSoulBoundToken__ZeroAccountMintLimit();

    /**
     * @dev Error indicating an invalid stage end timestamp, typically when it's set in the past.
     * @param endTimestamp The end timestamp provided for the stage.
     * @param currentTimestamp The current timestamp at the moment of stage creation or interaction.
     */
    error ParabolSoulBoundToken__InvalidStageEndTimestamp(
        uint256 endTimestamp,
        uint256 currentTimestamp
    );

    /**
     * @dev Error indicating an attempt to transfer tokens, which is disabled in SoulBound tokens.
     */
    error ParabolSoulBoundToken__TransferDisabled();
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

/**
 * @title Interface for SoulBound ERC20 Base Errors
 * @notice Provides a standardized way to handle errors specific to SoulBound ERC20 Base.
 * @dev Error types include balance insufficiencies, invalid operation participants, and invalid signature
 * verifications, among others, specific to the functionalities of a SoulBound ERC20 token.
 */
interface ISoulBoundERC20BaseErrors {
    /**
     * @dev Error for when a transfer, mint, or burn operation fails due to insufficient balance.
     * @param sender The address attempting the operation.
     * @param balance The current balance of the sender.
     * @param needed The balance required to complete the operation.
     */
    error SoulBoundERC20Base__InsufficientBalance(
        address sender,
        uint256 balance,
        uint256 needed
    );

    /**
     * @dev Error indicating an operation attempted with an invalid sender address.
     * @param sender The invalid sender address.
     */
    error SoulBoundERC20Base__InvalidSender(address sender);

    /**
     * @dev Error indicating an operation attempted with an invalid receiver address.
     * @param receiver The invalid receiver address.
     */
    error SoulBoundERC20Base__InvalidReceiver(address receiver);

    /**
     * @dev Error indicating an attempt to approve tokens from an invalid approver address.
     * @param approver The invalid approver address.
     */
    error SoulBoundERC20Base__InvalidApprover(address approver);

    /**
     * @dev Error indicating an attempt to spend tokens with an invalid spender address.
     * @param spender The invalid spender address.
     */
    error SoulBoundERC20Base__InvalidSpender(address spender);

    /**
     * @dev Error for when a transfer operation fails due to insufficient allowance.
     * @param spender The address attempting to spend the tokens.
     * @param allowance The current allowance for the spender.
     * @param needed The allowance required to complete the operation.
     */
    error SoulBoundERC20Base__InsufficientAllowance(
        address spender,
        uint256 allowance,
        uint256 needed
    );

    /**
     * @dev Error indicating an invalid signature was provided for a permit and mint permit operations.
     */
    error SoulBoundERC20Base__InvalidSignature();

    /**
     * @dev Error indicating the recovered signer from a signature does not match the expected signer.
     * @param signer The address recovered from the signature.
     * @param expectedSigner The expected signer address.
     */
    error SoulBoundERC20Base__InvalidSigner(
        address signer,
        address expectedSigner
    );
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

/**
 * @title Interface for SoulBound Mint Permit Errors
 * @notice Provides a standardized way to handle errors specific to mint permit functionality.
 * @dev Specifies the errors that can occur during the minting process with a mint permit.
 */
interface ISoulBoundMintPermitErrors {
    /**
     * @dev Error indicating that a zero address was provided where it is not allowed.
     */
    error SoulBoundMintPermit__ZeroAddress();

    /**
     * @dev Error indicating that the same signer address is being set again.
     */
    error SoulBoundMintPermit__SameSigner();

    /**
     * @dev Error indicating that the caller is not the owner or authorized party for minting.
     * @param caller The address of the caller attempting to mint.
     * @param owner The expected owner or authorized party.
     */
    error SoulBoundMintPermit__InvalidCaller(address caller, address owner);
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

/**
 * @title Interface for SoulBound Permit Errors
 * @notice Provides a standardized way to handle errors specific to SoulBound permit functionality.
 * @dev Defines error types related to the permit feature in SoulBound tokens.
 */
interface SoulBoundPermitErrors {
    /**
     * @dev Error indicating that the signature for a permit has expired.
     * @param deadline The timestamp of when the signature expired.
     */
    error SoulBoundPermit__ExpiredSignature(uint256 deadline);
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

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

/**
 * @title Interface for Parabol SoulBound Token
 * @notice Extends the SoulBound Mint Permit interface with additional functionalities specific to the Parabol
 * SoulBound Token, including minting, burning, and stage management.
 * @dev Introduces counters for orders and stages, structures for stage information, and events for minting,
 * burning, and starting new stages. It represents a more specific implementation of SoulBound tokens, with
 * added complexity to support various stages of minting.
 */
interface IParabolSoulBoundToken is ISoulBoundMintPermit {
    /**
     * @dev Structure to keep track of counters, commonly used for order IDs and stage IDs.
     */
    struct Counter {
        uint256 _value;
    }

    /**
     * @dev Structure containing information about a minting stage, including caps, limit, minted amount and timestamps.
     */
    struct StageInfo {
        uint256 cap;
        uint256 accountMintLimit;
        uint256 minted;
        uint256 endTimestamp;
    }

    /**
     * @notice Emitted when new tokens are minted.
     * @param to The address receiving the minted tokens.
     * @param mintAmount The amount of tokens minted.
     * @param stageId The ID of the minting stage.
     * @param orderId The order ID associated with the minting.
     */
    event Mint(
        address indexed to,
        uint256 mintAmount,
        uint256 stageId,
        uint256 orderId
    );

    /**
     * @notice Emitted when tokens are burned.
     * @param from The address from which tokens are burned.
     * @param amount The amount of tokens burned.
     * @param orderId The order ID associated with the burning.
     */
    event Burn(address indexed from, uint256 amount, uint256 orderId);

    /**
     * @notice Emitted when a new minting stage starts.
     * @param stageId The ID of the new stage.
     * @param cap The cap on the number of tokens that can be minted in this stage.
     * @param accountMintLimit The limit on the number of tokens a single account can mint in this stage.
     * @param endTimestamp The timestamp when the stage ends.
     */
    event StartStage(
        uint256 stageId,
        uint256 cap,
        uint256 accountMintLimit,
        uint256 endTimestamp
    );

    /**
     * @dev Function signature for minting tokens.
     */
    function mint(
        MintPermit calldata mintPermit,
        Signature calldata signature,
        uint256 mintAmount
    ) external;

    /**
     * @dev Function signature for burning tokens.
     */
    function burn(address from, uint256 amount, uint256 orderId) external;

    /**
     * @dev Function signature for checking allowance.
     */
    function allowance(
        address owner,
        address spender
    ) external view returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

/**
 * @title Interface for SoulBound ERC20 Base
 * @notice Defines the basic interface for a SoulBound ERC20 Base, including events for transfers and approvals.
 * @dev Provides an interface for the fundamental operations of a SoulBound ERC20 token, ensuring compatibility
 * with the ERC20 standard while adapting it to the non-transferable nature of SoulBound tokens.
 */
interface ISoulBoundERC20Base {
    /**
     * @notice Emitted when tokens are minted or burned.
     * @param from The address of the sender.
     * @param to The address of the receiver.
     * @param value The amount of tokens transferred.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @notice Emitted when the allowance of a `spender` for an `owner` is set by a call to `approve`.
     * @param owner The address of the owner of the tokens.
     * @param spender The address of the spender.
     * @param value The new allowance.
     */
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.8.24;

/**
 * @title Interface for SoulBound Mint Permit
 * @notice Defines the structure for mint permits in SoulBound tokens, enabling minting based on off-chain
 * permissions.
 * @dev Specifies the MintPermit structure, Signature structure, and an event for setting a new signer for
 * mint permits. This interface is intended to be implemented by contracts that support minting SoulBound
 * tokens through signed permissions.
 */
interface ISoulBoundMintPermit {
    /**
     * @notice Emitted when a new mint permit signer is set.
     * @param signer The address of the new signer.
     */
    event SoulBoundMintPermit__SetMintPermitSigner(address indexed signer);

    /**
     * @dev Structure defining a mint permit, containing the owner's address, the amount to mint, and the stage ID.
     */
    struct MintPermit {
        address owner;
        uint256 amount;
        uint256 stageId;
    }

    /**
     * @dev Structure defining a signature, containing the components of an ECDSA signature.
     */
    struct Signature {
        uint8 v;
        bytes32 r;
        bytes32 s;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

/**
 * @dev Provides tracking nonces for addresses. Nonces will only increment.
 */
abstract contract NoncesUpgradeable is Initializable {
    /**
     * @dev The nonce used for an `account` is not the expected current nonce.
     */
    /// @custom:storage-location erc7201:parabol.storage.Nonces
    struct NoncesStorage {
        mapping(address account => uint256) _nonces;
    }

    // keccak256(abi.encode(uint256(keccak256("parabol.storage.Nonces")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant NoncesStorageLocation =
        0x4844f4ef9e791d535f02b34904c9f8ee969c9ffb8c000af70ea4a0636fb56700;

    function _getNoncesStorage()
        private
        pure
        returns (NoncesStorage storage $)
    {
        assembly {
            $.slot := NoncesStorageLocation
        }
    }

    /**
     * @dev Returns the next unused nonce for an address.
     */
    function nonces(address owner) public view virtual returns (uint256) {
        return _getNoncesStorage()._nonces[owner];
    }

    /**
     * @dev Consumes a nonce.
     *
     * Returns the current value and increments nonce.
     */
    function _useNonce(address owner) internal virtual returns (uint256) {
        // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be
        // decremented or reset. This guarantees that the nonce never overflows.
        unchecked {
            // It is important to do x++ and not ++x here.
            return _getNoncesStorage()._nonces[owner]++;
        }
    }
}

{
  "evmVersion": "shanghai",
  "optimizer": {
    "enabled": true,
    "runs": 99999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IParabolSoulBoundToken.StageInfo","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"cap","type":"uint256"},{"internalType":"uint256","name":"accountMintLimit","type":"uint256"},{"internalType":"uint256","name":"endTimestamp","type":"uint256"}],"name":"startStage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"}]

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