pragma solidity ^0.8.17;

import "@openzeppelin/contracts/interfaces/IERC20.sol";
import "@openzeppelin/contracts/interfaces/IERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

contract Stake is IERC721Receiver, Ownable, ReentrancyGuard {
    IERC20 public coinAddress;
    IERC721 public NFTcontract;
    bool public locked;
    uint256 minimumStakeTimeS;
    uint256 coinPerS;

    struct StakeInfo {
        address staker;
        uint256 stakedAt;
    }

    mapping(uint256 => StakeInfo) stakers;

    event Staked(uint256 indexed tokenId, uint256 time, address indexed user);

    event Unstaked(uint256 indexed tokenId, uint256 time, address indexed user);

    event UserEmergencyWithdraw(
        uint256 indexed tokenId,
        uint256 time,
        address indexed user
    );

    modifier callerIsUser() {
        require(tx.origin == msg.sender, "The caller is another contract");
        _;
    }

    constructor(IERC20 coin, IERC721 nft) {
        coinAddress = coin;
        NFTcontract = nft;
        locked = true;
    }

    function stake(uint256 tokenId) internal {
        require(!locked, "Contract locked");
        require(NFTcontract.ownerOf(tokenId) == msg.sender, "Not the owner");
        require(stakers[tokenId].staker == address(0), "Already being staked");

        stakers[tokenId].staker = msg.sender;
        stakers[tokenId].stakedAt = block.timestamp;
        NFTcontract.safeTransferFrom(msg.sender, address(this), tokenId);
        emit Staked(tokenId, block.timestamp, msg.sender);
    }

    function batchStake(
        uint256[] memory _calldata
    ) external nonReentrant callerIsUser {
        for (uint256 i = 0; i < _calldata.length; ++i) {
            stake(_calldata[i]);
        }
    }

    function unstake(uint256 tokenId) internal {
        require(!locked, "Contract locked");
        require(
            stakers[tokenId].staker == msg.sender,
            "Not being staked by you"
        );
        require(
            (block.timestamp - stakers[tokenId].stakedAt) > minimumStakeTimeS,
            "Not staked long enough"
        );
        uint256 reward = (block.timestamp - stakers[tokenId].stakedAt) *
            coinPerS;

        delete stakers[tokenId];
        SafeERC20.safeTransfer(coinAddress, msg.sender, reward);
        NFTcontract.safeTransferFrom(address(this), msg.sender, tokenId);
        emit Unstaked(tokenId, block.timestamp, msg.sender);
    }

    function batchUnstake(
        uint256[] memory _calldata
    ) external nonReentrant callerIsUser {
        for (uint256 i = 0; i < _calldata.length; ++i) {
            unstake(_calldata[i]);
        }
    }

    function userEmergencyWithdraw(
        uint256 tokenId
    ) external nonReentrant callerIsUser {
        require(
            stakers[tokenId].staker == msg.sender,
            "Not being staked by you"
        );
        delete stakers[tokenId];
        NFTcontract.safeTransferFrom(address(this), msg.sender, tokenId);
        emit UserEmergencyWithdraw(tokenId, block.timestamp, msg.sender);
    }

    function toggleLock() external onlyOwner {
        locked = !locked;
    }

    function emergencyWithdrawCoin() external onlyOwner {
        SafeERC20.safeTransfer(
            coinAddress,
            msg.sender,
            coinAddress.balanceOf(address(this))
        );
    }

    function emergencyWithdrawNFTs(uint256[] memory tokens) external onlyOwner {
        for (uint256 i = 0; i < tokens.length; ++i) {
            delete stakers[tokens[i]];
            NFTcontract.safeTransferFrom(address(this), msg.sender, tokens[i]);
            emit UserEmergencyWithdraw(tokens[i], block.timestamp, msg.sender);
        }
    }

    function setMinimumStakeTime(uint64 minTime) external onlyOwner {
        minimumStakeTimeS = minTime;
    }

    function setCoinPerS(uint256 _coinPerS) external onlyOwner {
        coinPerS = _coinPerS;
    }

    function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) public pure override returns (bytes4) {
        return IERC721Receiver.onERC721Received.selector;
    }

    function stakeInfo(
        uint256 tokenId
    ) external view returns (address, uint256) {
        return (stakers[tokenId].staker, stakers[tokenId].stakedAt);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol)

pragma solidity ^0.8.0;

import "../token/ERC721/IERC721.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @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 {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing 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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

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

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

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @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 v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @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://diligence.consensys.net/posts/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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // 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(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 */
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].
     */
    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);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IERC20","name":"coin","type":"address"},{"internalType":"contract IERC721","name":"nft","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"},{"indexed":true,"internalType":"address","name":"user","type":"address"}],"name":"Staked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"},{"indexed":true,"internalType":"address","name":"user","type":"address"}],"name":"Unstaked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"},{"indexed":true,"internalType":"address","name":"user","type":"address"}],"name":"UserEmergencyWithdraw","type":"event"},{"inputs":[],"name":"NFTcontract","outputs":[{"internalType":"contract IERC721","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_calldata","type":"uint256[]"}],"name":"batchStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_calldata","type":"uint256[]"}],"name":"batchUnstake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"coinAddress","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"emergencyWithdrawCoin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokens","type":"uint256[]"}],"name":"emergencyWithdrawNFTs","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"locked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_coinPerS","type":"uint256"}],"name":"setCoinPerS","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint64","name":"minTime","type":"uint64"}],"name":"setMinimumStakeTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"stakeInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"toggleLock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"userEmergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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