// File: contracts/CnMGame.sol



// SPDX-License-Identifier: MIT LICENSE

pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/finance/PaymentSplitter.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "./interfaces/IHabitat.sol";
import "./interfaces/ITraits.sol";
import "./interfaces/ICHEDDAR.sol";
import "./interfaces/ICnM.sol";
import "./interfaces/IRandomizer.sol";

contract CnMGame is Ownable, ReentrancyGuard, Pausable {
  event MintCommitted(address indexed owner, uint256 indexed amount);
  event MintRevealed(address indexed owner, uint256 indexed amount);
  event Roll(address indexed owner, uint256 tokenId, uint8 roll);

  struct MintCommit {
    bool stake;
    uint16 amount;
  }
  struct RollCommit {
    uint256 tokenId;
  }

  // on-sale price (genesis NFTS)
  uint256 public MINT_PRICE = 0.075 ether;
  // rolling price
  uint256 public ROLL_COST = 3000 ether;
  bool public isWhitelistActive;
  bool public isPublicActive;
  uint256 public maxPerWallet = 3;
  mapping(address => uint256) perWallet;

  bytes32 public root;
  // address -> mint commit id -> commits
  mapping(address => mapping(uint16 => MintCommit)) private _mintCommits;
  // address -> roll commit id -> roll commits
  // mapping(address => mapping(uint16 => MintCommit)) private _rollCommits;
  // address -> Id of commit need revealed for account
  mapping(address => uint16) private _pendingCommitId;
  // address -> Id of rolling commit need revealed for account
  // mapping(address => uint16) private _pendingRollCommitId;

  // uint16 private _rollCommitId = 1;
  // pending mint amount
  uint16 private pendingMintAmt;

  // pending roll amount
  // uint16 private pendingRollAmt;

  // flag for commits allowment
  bool public allowCommits = true;

  // address => can call addCommitRandom
  mapping(address => bool) private admins;

  // reference to the Habitat for choosing random Cat thieves
  IHabitat public habitat;
  // reference to $CHEDDAR for burning on mint
  ICHEDDAR public cheddarToken;
  // reference to Traits
  ITraits public traits;
  // reference to CnM NFT collection
  ICnM public cnmNFT;
  // reference to IRandomizer
  IRandomizer public randomizer;
  address[] _addresses = [
      0xF456D310b9B40C93d9686199b3A3775d8dd52fd1,
      0x291d931172783AB4B059c9E25F5C2af1D541373f,
      0x4DAfcc597cbEf07A3E089200f054c674d549fc8D,
      0xe3b661D0Fd1FedF2782997E55C417BAA7c49B3b9,
      0xAB4438B61a920B9044A3F182c67FF18138E6EE99,
      0x510245323739DB800B6520463782fBc890cAf023
  ];
  uint256[] _shares = [40,192, 192, 192, 192, 192];

  constructor() {
    _pause();
  }

  /** CRITICAL TO SETUP */

  modifier requireContractsSet() {
      require(address(cheddarToken) != address(0) && address(traits) != address(0)
        && address(cnmNFT) != address(0) && address(habitat) != address(0) && address(randomizer) != address(0)
        , "Contracts not set");
      _;
  }

  function setContracts(address _cheddar, address _traits, address _cnm, address _habitat, address _randomizer) external onlyOwner {
    cheddarToken = ICHEDDAR(_cheddar);
    traits = ITraits(_traits);
    cnmNFT = ICnM(_cnm);
    habitat = IHabitat(_habitat);
    randomizer = IRandomizer(_randomizer);
  }

  /** EXTERNAL */

  function getPendingMint(address addr) external view returns (MintCommit memory) {
    require(_pendingCommitId[addr] != 0, "no pending commits");
    return _mintCommits[addr][_pendingCommitId[addr]];
  }

  function hasMintPending(address addr) external view returns (bool) {
    return _pendingCommitId[addr] != 0;
  }

  function canMint(address addr) external view returns (bool) {
    uint256 seed = randomizer.getCommitRandom(_pendingCommitId[addr]);
    return _pendingCommitId[addr] != 0 && seed > 0;
  }

  function deleteCommit(address addr) external {
    require(owner() == _msgSender() || admins[_msgSender()], "Only admins can call this");
    uint16 commitIdCur = _pendingCommitId[_msgSender()];
    require(commitIdCur > 0, "No pending commit");
    delete _mintCommits[addr][commitIdCur];
    delete _pendingCommitId[addr];
  }

  function forceRevealCommit(address addr) external {
    require(owner() == _msgSender() || admins[_msgSender()], "Only admins can call this");
    reveal(addr);
  }

  function whitelistMint(uint256 amount, bool stake, uint256 tokenId, bytes32[] calldata proof) external payable nonReentrant {
    require(isWhitelistActive, "not active");
    require(_verify(_leaf(_msgSender(), tokenId), proof), "invalid");
    require(perWallet[msg.sender] + amount <= maxPerWallet, "cannot exceed max");
    require(allowCommits, "adding commits disallowed");
    require(tx.origin == _msgSender(), "Only EOA");
    require(_pendingCommitId[_msgSender()] == 0, "Already have pending mints");
    uint16 minted = cnmNFT.minted();
    uint256 maxTokens = cnmNFT.getMaxTokens();
    uint256 paidTokens = cnmNFT.getPaidTokens();
    require(amount > 0 && minted + pendingMintAmt + amount <= maxTokens, "All tokens minted");
    require(minted + amount <= paidTokens, "All tokens on-sale already sold");
    require(amount * MINT_PRICE == msg.value, "Invalid payment amount");

    uint16 amt = uint16(amount);
    _mintCommits[_msgSender()][randomizer.commitId()] = MintCommit(stake, amt);
    _pendingCommitId[_msgSender()] = randomizer.commitId();
    pendingMintAmt += amt;
    perWallet[msg.sender] += amount;
    emit MintCommitted(_msgSender(), amount);
  }

  /** Initiate the start of a mint. This action burns $CHEDDAR, as the intent of committing is that you cannot back out once you've started.
    * This will add users into the pending queue, to be revealed after a random seed is generated and assigned to the commit id this
    * commit was added to. */
  function mintCommit(uint256 amount, bool stake) external payable nonReentrant whenNotPaused {
    require(isPublicActive, "Not live");
    require(allowCommits, "adding commits disallowed");
    require(tx.origin == _msgSender(), "Only EOA");
    require(_pendingCommitId[_msgSender()] == 0, "Already have pending mints");
    uint16 minted = cnmNFT.minted();
    uint256 maxTokens = cnmNFT.getMaxTokens();
    uint256 paidTokens = cnmNFT.getPaidTokens();
    require(minted + pendingMintAmt + amount <= maxTokens, "All tokens minted");
    require(amount > 0 && amount <= 4, "Invalid mint amount");
    if (minted < paidTokens) {
        require(
            minted + amount <= paidTokens,
            "All tokens on-sale already sold"
        );
        require(amount * MINT_PRICE == msg.value, "Invalid payment amount");
    } else {
        require(msg.value == 0);
    }

    uint256 totalCheddarCost = 0;
    // Loop through the amount of 
    for (uint i = 1; i <= amount; i++) {
      totalCheddarCost += mintCost(minted + pendingMintAmt + i, maxTokens);
    }
    if (totalCheddarCost > 0) {
      cheddarToken.burn(_msgSender(), totalCheddarCost);
      cheddarToken.updateOriginAccess();
    }
    uint16 amt = uint16(amount);
    _mintCommits[_msgSender()][randomizer.commitId()] = MintCommit(stake, amt);
    _pendingCommitId[_msgSender()] = randomizer.commitId();
    pendingMintAmt += amt;
    emit MintCommitted(_msgSender(), amount);
  }

  /** Reveal the commits for this user. This will be when the user gets their NFT, and can only be done when the commit id that
    * the user is pending for has been assigned a random seed. */
  function mintReveal() external whenNotPaused nonReentrant {
    require(tx.origin == _msgSender(), "Only EOA1");
    reveal(_msgSender());
  }

  function reveal(address addr) internal {
    uint16 commitIdCur = _pendingCommitId[addr];
    uint256 seed = randomizer.getCommitRandom(commitIdCur);
    require(commitIdCur > 0, "No pending commit");
    require(seed > 0, "random seed not set");
    uint16 minted = cnmNFT.minted();
    MintCommit memory commit = _mintCommits[addr][commitIdCur];
    pendingMintAmt -= commit.amount;
    uint16[] memory tokenIds = new uint16[](commit.amount);
    uint16[] memory tokenIdsToStake = new uint16[](commit.amount);
    for (uint k = 0; k < commit.amount; k++) {
      minted++;
      // scramble the random so the steal are different per mint
      seed = uint256(keccak256(abi.encode(seed, addr)));
      address recipient = selectRecipient(seed);

      tokenIds[k] = minted;
      if (!commit.stake || recipient != addr) {
        cnmNFT.mint(recipient, seed);
      } else {
        cnmNFT.mint(address(habitat), seed);
        tokenIdsToStake[k] = minted;
      }
    }
    cnmNFT.updateOriginAccess(tokenIds);
    if(commit.stake) {
      habitat.addManyToStakingPool(addr, tokenIdsToStake);
    }
    delete _mintCommits[addr][commitIdCur];
    delete _pendingCommitId[addr];
    emit MintRevealed(addr, tokenIds.length);
  }

  /*
  * implement mouse roll
  */
  function rollForage(uint256 tokenId) external whenNotPaused nonReentrant returns(uint8) {
    require(allowCommits, "adding commits disallowed");
    require(tx.origin == _msgSender(), "Only EOA");
    require(habitat.isOwner(tokenId, msg.sender), "Not owner");
    require(!cnmNFT.isCat(tokenId), "affected only for Mouse NFTs");

    cheddarToken.burn(_msgSender(), ROLL_COST);
    cheddarToken.updateOriginAccess();
    uint256 seed = randomizer.sRandom(tokenId);
    uint8 roll;

    /*
    * Odds to Roll:
    * Trashcan: Default
    * Cupboard: 70%
    * Pantry: 20%
    * Vault: 10%
    */
    if ((seed & 0xFFFF) % 100 < 10) {
      roll = 3;
    } else if((seed & 0xFFFF) % 100 < 30) {
      roll = 2;
    } else {
      roll = 1;
    }
    uint8 previous = cnmNFT.getTokenRoll(tokenId);
    if(roll > previous) {
      cnmNFT.setRoll(tokenId, roll);
    }

    emit Roll(msg.sender, tokenId, roll);
    return roll;
  }

  /**
  * the first 20% are paid in ETHER
  * the next 20% are 20000 $CHEDDAR
  * the next 40% are 40000 $CHEDDAR
  * the final 20% are 80000 $CHEDDAR
  * @param tokenId the ID to check the cost of to mint
  * @return the cost of the given token ID
  */
  function mintCost(uint256 tokenId, uint256 maxTokens) public pure returns (uint256) {
    if (tokenId <= maxTokens / 5) return 0;
    if (tokenId <= maxTokens * 2 / 5) return 20000 ether;
    if (tokenId <= maxTokens * 4 / 5) return 40000 ether;
    return 80000 ether;
  }

  /** INTERNAL */

  /**
   * @param seed a random value to select a recipient from
   * @return the address of the recipient (either the minter or the Cat thief's owner)
   */
  function selectRecipient(uint256 seed) internal view returns (address) {
    // During initial 10k mint, stealing will not happen
    uint16 mintedNum = cnmNFT.minted();
    uint256 paidToken = cnmNFT.getPaidTokens();
    if (mintedNum < paidToken) {
      return _msgSender();
    }

    // 10% chance of stealing
    if (((seed >> 245) % 10) != 0) return _msgSender(); // top 10 bits haven't been used

    // Select stealer cat
    address thief = habitat.randomCatOwner(seed >> 144); // 144 bits reserved for trait selection
    if (thief == address(0x0)) return _msgSender();
    return thief;
  }


  /** ADMIN */

  /**
   * enables owner to pause / unpause contract
   */
  function setPaused(bool _paused) external requireContractsSet onlyOwner {
    if (_paused) _pause();
    else _unpause();
  }

  function setAllowCommits(bool allowed) external onlyOwner {
    allowCommits = allowed;
  }

  /** Allow the contract owner to set the pending mint amount.
    * This allows any long-standing pending commits to be overwritten, say for instance if the max supply has been 
    *  reached but there are many stale pending commits, it could be used to free up those spaces if needed/desired by the community.
    * This function should not be called lightly, this will have negative consequences on the game. */
  function setPendingMintAmt(uint256 pendingAmt) external onlyOwner {
    pendingMintAmt = uint16(pendingAmt);
  }

  /**
  * enables an address to mint / burn
  * @param addr the address to enable
  */
  function addAdmin(address addr) external onlyOwner {
      admins[addr] = true;
  }

  /**
  * disables an address from minting / burning
  * @param addr the address to disbale
  */
  function removeAdmin(address addr) external onlyOwner {
      admins[addr] = false;
  }

  /**
   * allows owner to withdraw funds from minting
   */
  function withdraw() external onlyOwner {
    payable(owner()).transfer(address(this).balance);
  }

  function toggleWhitelistActive() external onlyOwner {
    isWhitelistActive = !isWhitelistActive;
  }

  function togglePublicSale() external onlyOwner {
    isPublicActive = !isPublicActive;
  }

  function setMaxPerWallet(uint256 _amount) external onlyOwner {
    maxPerWallet = _amount;
  }

  function setRoot(bytes32 _root) external onlyOwner {
    root = _root;
  }

  function setPrice(uint256 _price) external onlyOwner {
    MINT_PRICE = _price;
  }

  function setRollPrice(uint256 _price) external onlyOwner {
    ROLL_COST = _price * 1 ether;
  }

  function _leaf(address account, uint256 tokenId)
  internal pure returns (bytes32)
  {
      return keccak256(abi.encodePacked(tokenId, account));
  }

  function _verify(bytes32 leaf, bytes32[] memory proof)
  internal view returns (bool)
  {
      return MerkleProof.verify(proof, root, leaf);
  }
}
// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

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

// File: @openzeppelin/contracts/security/Pausable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../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 {
    /**
     * @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);

    bool private _paused;

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

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

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

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

    /**
     * @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());
    }
}

// File: @openzeppelin/contracts/security/ReentrancyGuard.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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;
    }
}

// File: @openzeppelin/contracts/finance/PaymentSplitter.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (finance/PaymentSplitter.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/utils/SafeERC20.sol";
import "../utils/Address.sol";
import "../utils/Context.sol";

/**
 * @title PaymentSplitter
 * @dev This contract allows to split Ether payments among a group of accounts. The sender does not need to be aware
 * that the Ether will be split in this way, since it is handled transparently by the contract.
 *
 * The split can be in equal parts or in any other arbitrary proportion. The way this is specified is by assigning each
 * account to a number of shares. Of all the Ether that this contract receives, each account will then be able to claim
 * an amount proportional to the percentage of total shares they were assigned.
 *
 * `PaymentSplitter` follows a _pull payment_ model. This means that payments are not automatically forwarded to the
 * accounts but kept in this contract, and the actual transfer is triggered as a separate step by calling the {release}
 * function.
 *
 * NOTE: This contract assumes that ERC20 tokens will behave similarly to native tokens (Ether). Rebasing tokens, and
 * tokens that apply fees during transfers, are likely to not be supported as expected. If in doubt, we encourage you
 * to run tests before sending real value to this contract.
 */
contract PaymentSplitter is Context {
    event PayeeAdded(address account, uint256 shares);
    event PaymentReleased(address to, uint256 amount);
    event ERC20PaymentReleased(IERC20 indexed token, address to, uint256 amount);
    event PaymentReceived(address from, uint256 amount);

    uint256 private _totalShares;
    uint256 private _totalReleased;

    mapping(address => uint256) private _shares;
    mapping(address => uint256) private _released;
    address[] private _payees;

    mapping(IERC20 => uint256) private _erc20TotalReleased;
    mapping(IERC20 => mapping(address => uint256)) private _erc20Released;

    /**
     * @dev Creates an instance of `PaymentSplitter` where each account in `payees` is assigned the number of shares at
     * the matching position in the `shares` array.
     *
     * All addresses in `payees` must be non-zero. Both arrays must have the same non-zero length, and there must be no
     * duplicates in `payees`.
     */
    constructor(address[] memory payees, uint256[] memory shares_) payable {
        require(payees.length == shares_.length, "PaymentSplitter: payees and shares length mismatch");
        require(payees.length > 0, "PaymentSplitter: no payees");

        for (uint256 i = 0; i < payees.length; i++) {
            _addPayee(payees[i], shares_[i]);
        }
    }

    /**
     * @dev The Ether received will be logged with {PaymentReceived} events. Note that these events are not fully
     * reliable: it's possible for a contract to receive Ether without triggering this function. This only affects the
     * reliability of the events, and not the actual splitting of Ether.
     *
     * To learn more about this see the Solidity documentation for
     * https://solidity.readthedocs.io/en/latest/contracts.html#fallback-function[fallback
     * functions].
     */
    receive() external payable virtual {
        emit PaymentReceived(_msgSender(), msg.value);
    }

    /**
     * @dev Getter for the total shares held by payees.
     */
    function totalShares() public view returns (uint256) {
        return _totalShares;
    }

    /**
     * @dev Getter for the total amount of Ether already released.
     */
    function totalReleased() public view returns (uint256) {
        return _totalReleased;
    }

    /**
     * @dev Getter for the total amount of `token` already released. `token` should be the address of an IERC20
     * contract.
     */
    function totalReleased(IERC20 token) public view returns (uint256) {
        return _erc20TotalReleased[token];
    }

    /**
     * @dev Getter for the amount of shares held by an account.
     */
    function shares(address account) public view returns (uint256) {
        return _shares[account];
    }

    /**
     * @dev Getter for the amount of Ether already released to a payee.
     */
    function released(address account) public view returns (uint256) {
        return _released[account];
    }

    /**
     * @dev Getter for the amount of `token` tokens already released to a payee. `token` should be the address of an
     * IERC20 contract.
     */
    function released(IERC20 token, address account) public view returns (uint256) {
        return _erc20Released[token][account];
    }

    /**
     * @dev Getter for the address of the payee number `index`.
     */
    function payee(uint256 index) public view returns (address) {
        return _payees[index];
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of Ether they are owed, according to their percentage of the
     * total shares and their previous withdrawals.
     */
    function release(address payable account) public virtual {
        require(_shares[account] > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = address(this).balance + totalReleased();
        uint256 payment = _pendingPayment(account, totalReceived, released(account));

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _released[account] += payment;
        _totalReleased += payment;

        Address.sendValue(account, payment);
        emit PaymentReleased(account, payment);
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of `token` tokens they are owed, according to their
     * percentage of the total shares and their previous withdrawals. `token` must be the address of an IERC20
     * contract.
     */
    function release(IERC20 token, address account) public virtual {
        require(_shares[account] > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = token.balanceOf(address(this)) + totalReleased(token);
        uint256 payment = _pendingPayment(account, totalReceived, released(token, account));

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _erc20Released[token][account] += payment;
        _erc20TotalReleased[token] += payment;

        SafeERC20.safeTransfer(token, account, payment);
        emit ERC20PaymentReleased(token, account, payment);
    }

    /**
     * @dev internal logic for computing the pending payment of an `account` given the token historical balances and
     * already released amounts.
     */
    function _pendingPayment(
        address account,
        uint256 totalReceived,
        uint256 alreadyReleased
    ) private view returns (uint256) {
        return (totalReceived * _shares[account]) / _totalShares - alreadyReleased;
    }

    /**
     * @dev Add a new payee to the contract.
     * @param account The address of the payee to add.
     * @param shares_ The number of shares owned by the payee.
     */
    function _addPayee(address account, uint256 shares_) private {
        require(account != address(0), "PaymentSplitter: account is the zero address");
        require(shares_ > 0, "PaymentSplitter: shares are 0");
        require(_shares[account] == 0, "PaymentSplitter: account already has shares");

        _payees.push(account);
        _shares[account] = shares_;
        _totalShares = _totalShares + shares_;
        emit PayeeAdded(account, shares_);
    }
}

// File: @openzeppelin/contracts/utils/cryptography/MerkleProof.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];
            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
            }
        }
        return computedHash;
    }
}

// File: contracts/interfaces/IHabitat.sol



// SPDX-License-Identifier: MIT LICENSE 

pragma solidity ^0.8.0;

interface IHabitat {
  function addManyToStakingPool(address account, uint16[] calldata tokenIds) external;
  function addManyHouseToStakingPool(address account, uint16[] calldata tokenIds) external;
  function randomCatOwner(uint256 seed) external view returns (address);
  function randomCrazyCatOwner(uint256 seed) external view returns (address);
  function isOwner(uint256 tokenId, address owner) external view returns (bool);
}
// File: contracts/interfaces/ITraits.sol



// SPDX-License-Identifier: MIT LICENSE 

pragma solidity ^0.8.0;

interface ITraits {
  function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: contracts/interfaces/ICHEDDAR.sol



// SPDX-License-Identifier: MIT LICENSE

pragma solidity ^0.8.0;

interface ICHEDDAR {
    function mint(address to, uint256 amount) external;
    function burn(address from, uint256 amount) external;
    function updateOriginAccess() external;
    function transferFrom(address sender, address recipient, uint256 amount) external returns(bool);
}
// File: contracts/interfaces/ICnM.sol



// SPDX-License-Identifier: MIT LICENSE

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol";

interface ICnM is IERC721Enumerable {
    
    // Character NFT struct
    struct CatMouse {
        bool isCat; // true if cat
        bool isCrazy; // true if cat is CrazyCatLady, only check if isCat equals to true
        uint8 roll; //0 - habitatless, 1 - Shack, 2 - Ranch, 3 - Mansion

        uint8 body;
        uint8 color;
        uint8 eyes;
        uint8 eyebrows;
        uint8 neck;
        uint8 glasses;
        uint8 hair;
        uint8 head;
        uint8 markings;
        uint8 mouth;
        uint8 nose;
        uint8 props;
        uint8 shirts;
    }

    function getTokenWriteBlock(uint256 tokenId) external view returns(uint64);
    function mint(address recipient, uint256 seed) external;
    // function setRoll(uint256 seed, uint256 tokenId, address addr) external;
    function setRoll(uint256 tokenId, uint8 habitatType) external;

    function emitCatStakedEvent(address owner,uint256 tokenId) external;
    function emitCrazyCatStakedEvent(address owner, uint256 tokenId) external;
    function emitMouseStakedEvent(address owner, uint256 tokenId) external;
    
    function emitCatUnStakedEvent(address owner, uint256 tokenId) external;
    function emitCrazyCatUnStakedEvent(address owner, uint256 tokenId) external;
    function emitMouseUnStakedEvent(address owner, uint256 tokenId) external;
    
    function burn(uint256 tokenId) external;
    function getPaidTokens() external view returns (uint256);
    function updateOriginAccess(uint16[] memory tokenIds) external;
    function isCat(uint256 tokenId) external view returns(bool);
    function isClaimable() external view returns(bool);
    function isCrazyCatLady(uint256 tokenId) external view returns(bool);
    function getTokenRoll(uint256 tokenId) external view returns(uint8);
    function getMaxTokens() external view returns (uint256);
    function getTokenTraits(uint256 tokenId) external view returns (CatMouse memory);
    function minted() external view returns (uint16);
}
// File: contracts/interfaces/IRandomizer.sol



// SPDX-License-Identifier: MIT LICENSE

pragma solidity ^0.8.0;

interface IRandomizer {
    function commitId() external view returns (uint16);
    function getCommitRandom(uint16 id) external view returns (uint256);
    function random() external returns (uint256);
    function sRandom(uint256 tokenId) external returns (uint256);
}
// File: @openzeppelin/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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;
    }
}

// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.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));
        }
    }

    /**
     * @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");
        }
    }
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @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);
}

// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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`, 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 be 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 Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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 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);

    /**
     * @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;
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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);
}