ZEOPresale

{{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

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

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

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

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

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

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

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

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "@openzeppelin/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

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

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

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

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

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

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

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

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

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

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

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}
"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
"
    },
    "@openzeppelin/contracts/utils/Pausable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}
"
    },
    "@openzeppelin/contracts/utils/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

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

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}
"
    },
    "contracts/ZEOPresale.sol": {
      "content": "// SPDX-License-Identifier: MIT\r
pragma solidity 0.8.30;\r
\r
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";\r
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";\r
import "@openzeppelin/contracts/access/Ownable.sol";\r
import "@openzeppelin/contracts/utils/Pausable.sol";\r
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";\r
\r
interface AggregatorV3Interface {\r
    function decimals() external view returns (uint8);\r
    function latestRoundData()\r
        external\r
        view\r
        returns (\r
            uint80 roundId,\r
            int256 answer,\r
            uint256 startedAt,\r
            uint256 updatedAt,\r
            uint80 answeredInRound\r
        );\r
}\r
\r
contract ZEOPresale is Ownable, Pausable, ReentrancyGuard {\r
    using SafeERC20 for IERC20;\r
\r
    error InvalidAddress();\r
    error InvalidAmount();\r
    error InvalidBps();\r
    error DirectEthNotAllowed();\r
    error FallbackNotSupported();\r
    error PresaleNotStarted();\r
    error PresaleAlreadyStarted();\r
    error PresaleEnded();\r
    error ExceedsRoundAllocation();\r
    error ExceedsUSDTarget();\r
    error NoETHSent();\r
    error InvalidTimestamp();\r
    error TGEAlreadySet();\r
    error TGENotSet();\r
    error TGENotStarted();\r
    error NoTokensToClaim();\r
    error NothingToClaim();\r
    error InvalidPrice();\r
    error PriceTooOld();\r
    error InvalidPriceDecimals();\r
    error CannotWithdrawZEO();\r
    error NoTokenBalance();\r
    error DuplicateOrder();\r
    error InvalidOrder();\r
    error OnlyOperator();\r
    error ZeoTokenNotSet();\r
    error TokenAlreadySet();\r
    error InvalidRoundTransition();\r
    error InsufficientContractBalance();\r
    error InsufficientTokensOut();\r
    error NoExcessTokens();\r
    error InvalidPriceAge();\r
    error TGEBeforePresaleEnd(); \r
\r
    enum PaymentMethod {\r
        ETH,\r
        USDT,\r
        USDC,\r
        CARD\r
    }\r
\r
    enum Round {\r
        SEED,\r
        COMMUNITY,\r
        ENDED\r
    }\r
\r
    struct RoundData {\r
        uint256 tokenPrice; \r
        uint256 tokensAllocated;\r
        uint256 tokensSold;\r
        uint256 usdTarget;\r
        uint256 usdRaised;\r
    }\r
\r
    struct User {\r
        uint256 totalPurchased;\r
        uint256 claimedPurchased;\r
        uint256 referralRewards;\r
        uint256 claimedReferral;\r
    }\r
\r
    uint256 public constant BPS_DENOMINATOR = 10_000;\r
    uint256 public referralBonusBps = 500; // 5%\r
    uint256 public constant TGE_PERCENT_BPS     = 700; // 7%\r
    uint256 public constant MONTHLY_VESTING_BPS = 775; // 7.75% × 12 = 93% + 7% TGE = 100%\r
    uint256 public constant CLIFF_DURATION      = 90 days; // 90 days\r
    uint256 public constant VESTING_INTERVAL    = 30 days; //  30 days\r
    uint256 public constant TOTAL_VESTING_MONTHS = 12;\r
    uint256 public constant MAX_REFERRAL_BPS = 3000; // 30%\r
    uint256 public maxPriceAge = 1 hours;\r
\r
    IERC20 public zeoToken;\r
    IERC20 public immutable usdt;\r
    IERC20 public immutable usdc;\r
    AggregatorV3Interface public immutable ethPriceFeed;\r
\r
    address public operator;\r
    uint256 public tgeTime;\r
\r
    Round public currentRound;\r
    bool public presaleStarted;\r
\r
    mapping(Round => RoundData) public rounds;\r
    mapping(address => User) public users;\r
    mapping(bytes32 => bool) public processedOrders;\r
\r
    uint256 public totalTokensSold;\r
    uint256 public totalReferralRewards;\r
    uint256 public totalUsdRaised;\r
\r
    event PresaleStarted(uint256 timestamp);\r
    event RoundTransition(Round previousRound, Round newRound, uint256 timestamp);\r
    event ZeoTokenSet(address indexed zeoToken);\r
    event OperatorUpdated(address indexed previousOperator, address indexed newOperator);\r
    event MaxPriceAgeUpdated(uint256 newMaxPriceAge, uint256 timestamp);\r
    event PurchaseCompleted(\r
        address indexed buyer,\r
        uint256 tokenAmount,\r
        uint256 usdAmount,\r
        Round round,\r
        PaymentMethod paymentMethod,\r
        uint256 timestamp,\r
        address indexed referrer,\r
        uint256 referralReward\r
    );\r
    event CardOrderProcessed(\r
        address indexed buyer,\r
        uint256 usdAmount,\r
        bytes32 indexed orderId,\r
        string orderNo,\r
        uint256 timestamp\r
    );\r
    event PurchasedTokensClaimed(\r
        address indexed user,\r
        uint256 claimedPurchased,\r
        uint256 timestamp\r
    );\r
    event ReferralRewardsClaimed(\r
        address indexed user,\r
        uint256 claimedReferral,\r
        uint256 timestamp\r
    );\r
    event TGETimeSet(uint256 tgeTime);\r
    event UnsoldTokensWithdrawn(uint256 amount);\r
    event TokensRecovered(address indexed tokenAddress, uint256 amount);\r
    event ReferralBonusUpdated(uint256 previousBps, uint256 newBps, uint256 timestamp);\r
    event PresaleForceEnded(uint256 timestamp);\r
\r
    modifier onlyOperator() {\r
        if (msg.sender != operator) revert OnlyOperator();\r
        _;\r
    }\r
\r
    modifier presaleActive() {\r
        if (!presaleStarted) revert PresaleNotStarted();\r
        if (currentRound == Round.ENDED) revert PresaleEnded();\r
        _;\r
    }\r
\r
    modifier zeoSet() {\r
        if (address(zeoToken) == address(0)) revert ZeoTokenNotSet();\r
        _;\r
    }\r
\r
    constructor(\r
        address _owner,\r
        address _usdt,\r
        address _usdc,\r
        address _ethPriceFeed\r
    ) Ownable(_owner) {\r
        if (_usdt == address(0) || _usdc == address(0) || _ethPriceFeed == address(0)) {\r
            revert InvalidAddress();\r
        }\r
\r
        usdt = IERC20(_usdt);\r
        usdc = IERC20(_usdc);\r
        ethPriceFeed = AggregatorV3Interface(_ethPriceFeed);\r
\r
        rounds[Round.SEED] = RoundData({\r
            tokenPrice: 0.01 * 1e18,\r
            tokensAllocated: 50000000 * 1e18, // 50M\r
            tokensSold: 0,\r
            usdTarget: 500000 * 1e18, // 0.5M\r
            usdRaised: 0\r
        });\r
\r
        rounds[Round.COMMUNITY] = RoundData({\r
            tokenPrice: 0.02 * 1e18,\r
            tokensAllocated: 150000000 * 1e18, // 150M\r
            tokensSold: 0,\r
            usdTarget: 3000000 * 1e18, //3M\r
            usdRaised: 0\r
        });\r
        currentRound = Round.ENDED;\r
    }\r
\r
    function startPresale() external onlyOwner {\r
        if (presaleStarted) revert PresaleAlreadyStarted();\r
        presaleStarted = true;\r
        currentRound = Round.SEED;\r
        emit PresaleStarted(block.timestamp);\r
    }\r
\r
    function setOperator(address _operator) external onlyOwner {\r
        if (_operator == address(0)) revert InvalidAddress();\r
        address previous = operator;\r
        operator = _operator;\r
        emit OperatorUpdated(previous, _operator);\r
    }\r
\r
    function setZeoToken(address _zeoToken) external onlyOwner {\r
        if (_zeoToken == address(0)) revert InvalidAddress();\r
        if (address(zeoToken) != address(0)) revert TokenAlreadySet();\r
        zeoToken = IERC20(_zeoToken);\r
        emit ZeoTokenSet(_zeoToken);\r
    }\r
\r
    function setMaxPriceAge(uint256 newMaxPriceAge) external onlyOwner {\r
        if (newMaxPriceAge < 5 minutes || newMaxPriceAge > 24 hours) {\r
            revert InvalidPriceAge();\r
        }\r
        maxPriceAge = newMaxPriceAge;\r
        emit MaxPriceAgeUpdated(newMaxPriceAge, block.timestamp);\r
    }\r
\r
    function setTGETime(uint256 _tgeTime) external onlyOwner {\r
        if (_tgeTime <= block.timestamp) revert InvalidTimestamp();\r
        if (tgeTime != 0) revert TGEAlreadySet();\r
        if (currentRound != Round.ENDED) revert TGEBeforePresaleEnd();\r
        tgeTime = _tgeTime;\r
        emit TGETimeSet(_tgeTime);\r
    }\r
\r
    function setReferralBonusBps(uint256 newBps) external onlyOwner {\r
        if (newBps > MAX_REFERRAL_BPS) revert InvalidBps(); \r
        uint256 prev = referralBonusBps;\r
        referralBonusBps = newBps;\r
        emit ReferralBonusUpdated(prev, newBps, block.timestamp);\r
    }\r
\r
    function forceEndPresale() external onlyOwner {\r
        if (!presaleStarted || currentRound == Round.ENDED) return;\r
        currentRound = Round.ENDED;\r
        emit PresaleForceEnded(block.timestamp);\r
    }\r
\r
    function getTokenStatus() external view returns (string memory) {\r
        if (address(zeoToken) == address(0)) return "TOKEN_NOT_SET";\r
        uint256 required = totalTokensSold + totalReferralRewards;\r
        uint256 available = zeoToken.balanceOf(address(this));\r
        if (available < required) return "INSUFFICIENT_BALANCE";\r
        return "READY";\r
    }\r
\r
    function getRequiredTokenAmount() external view returns (uint256) {\r
        return totalTokensSold + totalReferralRewards;\r
    }\r
\r
    function buyTokensWithETH(address referrer,  uint256 minTokensOut)\r
        external\r
        payable\r
        nonReentrant\r
        whenNotPaused\r
        presaleActive\r
    {\r
        if (msg.value == 0) revert NoETHSent();\r
        uint256 ethAmount = msg.value;\r
        (uint256 ethPrice, uint256 updatedAt) = _getETHPrice();\r
        if (block.timestamp - updatedAt > maxPriceAge) revert PriceTooOld();\r
        uint256 usdValue = (msg.value * ethPrice) / 1e18;\r
        _executePurchase(msg.sender, usdValue, PaymentMethod.ETH, referrer, minTokensOut);\r
\r
        (bool ethTransferSuccess, ) = payable(owner()).call{value: ethAmount}("");\r
        require(ethTransferSuccess, "ETH transfer failed");\r
    }\r
\r
    function buyTokensWithUSDT(uint256 usdtAmount, address referrer, uint256 minTokensOut)\r
        external\r
        nonReentrant\r
        whenNotPaused\r
        presaleActive\r
    {\r
        if (usdtAmount == 0) revert InvalidAmount();\r
        uint256 usdValue = usdtAmount * 1e12;\r
        usdt.safeTransferFrom(msg.sender, owner(), usdtAmount);\r
        _executePurchase(msg.sender, usdValue, PaymentMethod.USDT, referrer, minTokensOut);\r
    }\r
\r
    function buyTokensWithUSDC(uint256 usdcAmount, address referrer, uint256 minTokensOut)\r
        external\r
        nonReentrant\r
        whenNotPaused\r
        presaleActive\r
    {\r
        if (usdcAmount == 0) revert InvalidAmount();\r
        uint256 usdValue = usdcAmount * 1e12;\r
        usdc.safeTransferFrom(msg.sender, owner(), usdcAmount);\r
        _executePurchase(msg.sender, usdValue, PaymentMethod.USDC, referrer, minTokensOut);\r
    }\r
\r
    function buyWithCard(address buyer, uint256 usdAmount, address referrer, uint256 minTokensOut, string calldata orderNo) \r
        external \r
        nonReentrant \r
        onlyOperator \r
        whenNotPaused \r
        presaleActive \r
    {\r
        if (buyer == address(0)) revert InvalidAddress();\r
        if (usdAmount == 0) revert InvalidAmount();\r
        if (bytes(orderNo).length == 0) revert InvalidOrder();\r
        \r
        bytes32 orderId = keccak256(abi.encodePacked(buyer, orderNo));\r
        \r
        if (processedOrders[orderId]) revert DuplicateOrder();\r
        \r
        processedOrders[orderId] = true;\r
        \r
        _executePurchase(buyer, usdAmount, PaymentMethod.CARD, referrer, minTokensOut);\r
        \r
        emit CardOrderProcessed(buyer, usdAmount, orderId, orderNo, block.timestamp);\r
    }\r
\r
    function _sanitizeReferrer(address buyer, address referrer) internal pure returns (address) {\r
        if (referrer == address(0) || referrer == buyer) return address(0);\r
        return referrer;\r
    }\r
\r
    function _executePurchase(\r
        address buyer,\r
        uint256 usdValue,\r
        PaymentMethod method,\r
        address referrer,\r
        uint256 minTokensOut\r
    ) internal {\r
        Round current = currentRound;\r
        RoundData storage data = rounds[current];\r
        uint256 tokenAmount = (usdValue * 1e18) / data.tokenPrice;\r
        if (tokenAmount == 0) revert InvalidAmount();\r
        if (minTokensOut > 0 && tokenAmount < minTokensOut) revert InsufficientTokensOut();\r
        if (data.tokensSold + tokenAmount > data.tokensAllocated) revert ExceedsRoundAllocation();\r
        if (data.usdRaised + usdValue > data.usdTarget) revert ExceedsUSDTarget();\r
        data.tokensSold += tokenAmount;\r
        data.usdRaised += usdValue;\r
        totalTokensSold += tokenAmount;\r
        totalUsdRaised += usdValue;\r
        User storage user = users[buyer];\r
        user.totalPurchased += tokenAmount;\r
        uint256 referralReward = 0;\r
        address finalRef = _sanitizeReferrer(buyer, referrer);\r
        if (finalRef != address(0)) {\r
            referralReward = (tokenAmount * referralBonusBps) / BPS_DENOMINATOR;\r
            users[finalRef].referralRewards += referralReward;\r
            totalReferralRewards += referralReward;\r
        }\r
        emit PurchaseCompleted(buyer, tokenAmount, usdValue, current, method, block.timestamp, finalRef, referralReward);\r
        _checkRoundTransition();\r
    }\r
\r
    function _getETHPrice() internal view returns (uint256 price, uint256 updatedAt) {\r
        uint80 roundId;\r
        int256 answer;\r
        uint256 startedAt;\r
        uint80 answeredInRound;\r
        \r
        (roundId, answer, startedAt, updatedAt, answeredInRound) = ethPriceFeed.latestRoundData();\r
        \r
        if (answer <= 0) revert InvalidPrice();\r
        if (updatedAt == 0) revert InvalidPrice();\r
        if (answeredInRound < roundId) revert InvalidPrice();\r
        uint8 dec = ethPriceFeed.decimals();\r
        if (dec > 18) revert InvalidPriceDecimals();\r
        price = uint256(answer) * (10 ** (18 - dec));\r
    }\r
\r
    function getETHPriceUsd() public view returns (uint256 price, uint256 updatedAt) {\r
        return _getETHPrice();\r
    }\r
\r
    function _checkRoundTransition() internal {\r
        RoundData storage data = rounds[currentRound];\r
        if (data.tokensSold >= data.tokensAllocated || data.usdRaised >= data.usdTarget) {\r
            Round previous = currentRound;\r
            if (currentRound == Round.SEED) {\r
                currentRound = Round.COMMUNITY;\r
                emit RoundTransition(previous, Round.COMMUNITY, block.timestamp);\r
            } else if (currentRound == Round.COMMUNITY) {\r
                currentRound = Round.ENDED;\r
                emit RoundTransition(previous, Round.ENDED, block.timestamp);\r
            }\r
        }\r
    }\r
\r
    function claimTokens() external nonReentrant whenNotPaused zeoSet {\r
        if (tgeTime == 0) revert TGENotSet();\r
        if (block.timestamp < tgeTime) revert TGENotStarted();\r
        User storage user = users[msg.sender];\r
        uint256 vestedPurchased = _calculateVestedAmount(user.totalPurchased);\r
        if (vestedPurchased <= user.claimedPurchased) revert NothingToClaim();\r
        uint256 claimablePurchased = vestedPurchased - user.claimedPurchased;\r
        uint256 contractBalance = zeoToken.balanceOf(address(this));\r
\r
        if (contractBalance < claimablePurchased) {\r
            revert InsufficientContractBalance();\r
        }\r
\r
        user.claimedPurchased += claimablePurchased;\r
        zeoToken.safeTransfer(msg.sender, claimablePurchased);\r
        emit PurchasedTokensClaimed(msg.sender, claimablePurchased, block.timestamp);\r
    }\r
\r
    function claimReferralRewards() external nonReentrant whenNotPaused zeoSet {\r
        if (tgeTime == 0) revert TGENotSet();\r
        if (block.timestamp < tgeTime) revert TGENotStarted();\r
        User storage user = users[msg.sender];\r
        uint256 totalReferral = user.referralRewards;\r
        if (totalReferral <= user.claimedReferral) revert NothingToClaim();\r
        uint256 claimableReferral = totalReferral - user.claimedReferral;\r
        uint256 contractBalance = zeoToken.balanceOf(address(this));\r
\r
        if (contractBalance < claimableReferral) {\r
            revert InsufficientContractBalance();\r
        }\r
        user.claimedReferral = totalReferral;\r
        zeoToken.safeTransfer(msg.sender, claimableReferral);\r
        emit ReferralRewardsClaimed(msg.sender, claimableReferral, block.timestamp);\r
    }\r
\r
    function _calculateVestedAmount(uint256 totalAmount) internal view returns (uint256) {\r
        if (totalAmount == 0) return 0;\r
\r
        if (block.timestamp < tgeTime) return 0;\r
\r
        uint256 vested = (totalAmount * TGE_PERCENT_BPS) / BPS_DENOMINATOR;\r
\r
        if (block.timestamp <= tgeTime + CLIFF_DURATION) {\r
            return vested;\r
        }\r
\r
        uint256 monthsElapsed = (block.timestamp - (tgeTime + CLIFF_DURATION)) / VESTING_INTERVAL;\r
\r
        if (monthsElapsed >= TOTAL_VESTING_MONTHS) {\r
            return totalAmount;\r
        }\r
\r
        uint256 monthlyAmount = (totalAmount * MONTHLY_VESTING_BPS) / BPS_DENOMINATOR;\r
        vested += monthlyAmount * monthsElapsed;\r
\r
        if (vested > totalAmount) {\r
            vested = totalAmount;\r
        }\r
\r
        return vested;\r
    }\r
\r
    function getVestingInfo(address userAddr) external view returns (\r
        uint256 totalPurchased,\r
        uint256 claimed,\r
        uint256 claimable,\r
        uint256 nextUnlock\r
    ) {\r
        User storage u = users[userAddr];\r
        totalPurchased = u.totalPurchased;\r
        claimed = u.claimedPurchased;\r
\r
        uint256 vested = _calculateVestedAmount(totalPurchased);\r
        claimable = vested > claimed ? (vested - claimed) : 0;\r
\r
        if (tgeTime == 0) {\r
            nextUnlock = 0;\r
        } else if (block.timestamp < tgeTime) {\r
            nextUnlock = tgeTime; \r
        } else if (block.timestamp < tgeTime + CLIFF_DURATION) {\r
            nextUnlock = tgeTime + CLIFF_DURATION + VESTING_INTERVAL;\r
        } else {\r
            uint256 monthsElapsed = (block.timestamp - (tgeTime + CLIFF_DURATION)) / VESTING_INTERVAL;\r
            if (monthsElapsed + 1 >= TOTAL_VESTING_MONTHS) {\r
               nextUnlock = 0;\r
            } else {\r
               nextUnlock = tgeTime + CLIFF_DURATION + (monthsElapsed + 1) * VESTING_INTERVAL;\r
            }\r
        }\r
    }\r
\r
    function claimableInfo(address account) external view \r
    returns (\r
        uint256 claimablePurchased,\r
        uint256 claimableReferral,\r
        uint256 nextUnlock,\r
        bool fullyVested\r
    )\r
    {\r
        User storage u = users[account];\r
        uint256 vested = _calculateVestedAmount(u.totalPurchased);\r
        claimablePurchased = vested > u.claimedPurchased ? (vested - u.claimedPurchased) : 0;\r
        claimableReferral  = (tgeTime != 0 && block.timestamp >= tgeTime && u.referralRewards > u.claimedReferral)\r
        ? (u.referralRewards - u.claimedReferral) : 0;\r
        if (tgeTime == 0) nextUnlock = 0;\r
        else if (block.timestamp < tgeTime) nextUnlock = tgeTime;\r
        else if (block.timestamp < tgeTime + CLIFF_DURATION) nextUnlock = tgeTime + CLIFF_DURATION + VESTING_INTERVAL;\r
        else {\r
           uint256 m = (block.timestamp - (tgeTime + CLIFF_DURATION)) / VESTING_INTERVAL;\r
           nextUnlock = (m + 1 >= TOTAL_VESTING_MONTHS) ? 0 : tgeTime + CLIFF_DURATION + (m + 1) * VESTING_INTERVAL;\r
        }\r
        \r
        fullyVested = (vested >= u.totalPurchased);\r
    }\r
\r
    function manuallyTransitionRound(Round newRound) external onlyOwner {\r
        if (newRound <= currentRound) revert InvalidRoundTransition();\r
        if (newRound == Round.ENDED && currentRound != Round.COMMUNITY) revert InvalidRoundTransition();\r
        Round previous = currentRound;\r
        currentRound = newRound;\r
        emit RoundTransition(previous, newRound, block.timestamp);\r
    }\r
\r
    function withdrawUnsoldTokens() external onlyOwner {\r
        uint256 bal = zeoToken.balanceOf(address(this));\r
        uint256 required = totalTokensSold + totalReferralRewards;\r
        uint256 excess = bal > required ? bal - required : 0;\r
        if (excess == 0) revert NoExcessTokens();\r
        zeoToken.safeTransfer(owner(), excess);\r
        emit UnsoldTokensWithdrawn(excess);\r
    }\r
\r
   /**\r
   * @notice Recover non-ZEO ERC20 tokens that were mistakenly sent to this contract.\r
   * @dev Rescue function to withdraw *foreign* tokens (airdrops, accidental transfers,\r
   *      malicious tokens) from the presale address. This is a common admin pattern\r
   *      to prevent funds from being stranded.\r
   *\r
   *      Important:\r
   *      - Intended for NON-ZEO tokens only. Do not use this to extract ZEO; use\r
   *        {withdrawUnsoldTokens} for ZEO under the documented emergency policy.\r
   *      - Behavior with fee-on-transfer or rebasing tokens may differ; the function\r
   *        transfers the contract’s current balance and emits what was attempted.\r
   *      - Prefer pausing the contract and announcing the recovery before use.\r
   *\r
   *      Requirements:\r
   *      - `_token` must be a nonzero address and an ERC20-like contract.\r
   *      - Reverts with {NoTokenBalance} if this contract holds zero balance of `_token`.\r
   *\r
   *      Effects:\r
   *      - Transfers full `_token` balance to the owner.\r
   *      - Emits {TokensRecovered} with the token address and amount.\r
   */\r
\r
   function recoverWrongToken(address _token) external onlyOwner nonReentrant {\r
        if (_token == address(0)) revert InvalidAddress();\r
        if (_token == address(zeoToken)) revert CannotWithdrawZEO();\r
        uint256 bal = IERC20(_token).balanceOf(address(this));\r
        if (bal == 0) revert NoTokenBalance();\r
        IERC20(_token).safeTransfer(owner(), bal);\r
        emit TokensRecovered(_token, bal);\r
    }\r
\r
    function pause() external onlyOwner {\r
        _pause();\r
    }\r
\r
    function unpause() external onlyOwner {\r
        _unpause();\r
    }\r
\r
    receive() external payable {\r
        revert DirectEthNotAllowed();\r
    }\r
    \r
    fallback() external payable {\r
        revert FallbackNotSupported();\r
    }\r
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "viaIR": true,
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}