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// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.16;

/*

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                                               ##########.
                                                ,######

*/

import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {IDelabsAdventurePass} from "./interfaces/IDelabsAdventurePass.sol";
import {IDelabsAdventurePassStaking} from "./interfaces/IDelabsAdventurePassStaking.sol";

/**
 * @title Staking contract for Adventure Pass NFTs
 * @author Delabs Inc.
 */
contract DelabsAdventurePassStaking is IDelabsAdventurePassStaking, Initializable, PausableUpgradeable, OwnableUpgradeable {

    IDelabsAdventurePass private adventurePass;

    mapping(uint40 => uint16) public stakingLevels;
    mapping(uint256 => Position) public stakingPositions;

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

    // @dev Initializer as we using an upgradable contract
    function initialize(address adventurePassAddress) public initializer {
        adventurePass = IDelabsAdventurePass(adventurePassAddress);

        // inits
        __Ownable_init();
        __Pausable_init();
    }


    // -- STAKING --

    // @dev Stake and lock (optional) one token
    function stake(uint256 tokenId, uint40 lockedPeriod) external whenNotPaused {

        //if( adventurePass.ownerOf(tokenId) != msg.sender ) revert SenderIsNotTokenOwner(tokenId);
        if( lockedPeriod > 0 && stakingLevels[lockedPeriod] <= 0 ) revert InvalidLockedPeriod(lockedPeriod);

        _stake(msg.sender, tokenId, lockedPeriod);

    }

    // @dev Stake and lock (optional) one or more tokens
    function batchStake(uint256[] calldata tokenIds, uint40 lockedPeriod) external whenNotPaused {

        if( lockedPeriod > 0 && stakingLevels[lockedPeriod] <= 0 ) revert InvalidLockedPeriod(lockedPeriod);

        uint256 tokenLen = tokenIds.length;

        for(uint256 i; i < tokenLen; i++) {
            _stake(msg.sender, tokenIds[i], lockedPeriod);
        }
    }

    // @dev Unstake one token
    function unstake(uint256 tokenId) external whenNotPaused {

        _unstake(msg.sender, tokenId);

    }

    // @dev Unstake one or more tokens
    function batchUnstake(uint256[] calldata tokenIds) external whenNotPaused {

        uint256 tokenLen = tokenIds.length;

        for(uint256 i; i < tokenLen; i++) {
            _unstake(msg.sender, tokenIds[i]);
        }
    }

    // @dev Lock a staked token
    function lock(uint256 tokenId, uint40 lockedPeriod) external whenNotPaused {

        if( lockedPeriod > 0 && stakingLevels[lockedPeriod] <= 0 ) revert InvalidLockedPeriod(lockedPeriod);

        _lock(msg.sender, tokenId, lockedPeriod);

    }

    // @dev Lock one or more staked token
    function batchLock(uint256[] calldata tokenIds, uint40 lockedPeriod) external whenNotPaused {

        if( lockedPeriod > 0 && stakingLevels[lockedPeriod] <= 0 ) revert InvalidLockedPeriod(lockedPeriod);

        uint256 tokenLen = tokenIds.length;

        for(uint256 i; i < tokenLen; i++) {
            _lock(msg.sender, tokenIds[i], lockedPeriod);
        }

    }


    // -- VIEWS --

    // @dev Check if given token is staked
    function isTokenStaked(uint256 tokenId) external view returns(bool) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return stakingPosition.startTime > 0;
    }

    // @dev Check if given token is locked
    function isTokenLocked(uint256 tokenId) external view returns(bool) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return stakingPosition.lockedPeriod > 0;
    }

    // @dev Get staking start timestamp of given token
    function getTokenStakingStart(uint256 tokenId) external view returns(uint256) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return stakingPosition.startTime;
    }

    // @dev Get lock start timestamp of given token
    function getTokenLockStart(uint256 tokenId) external view returns(uint256) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return stakingPosition.lockStartTime;
    }

    // @dev Get staking time (in seconds) of given token
    function getTokenStakingTime(uint256 tokenId) external view returns(uint256) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return (stakingPosition.startTime > 0 ? (block.timestamp - stakingPosition.startTime) : 0);
    }

    // @dev Get locked period (in seconds) of given token
    function getTokenLockedPeriod(uint256 tokenId) external view returns(uint256) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return stakingPosition.lockedPeriod;
    }

    // @dev Get locked time left (in seconds) of given token
    function getTokenLockedTimeLeft(uint256 tokenId) external view returns(uint256) {
        Position memory stakingPosition = stakingPositions[tokenId];
        if( stakingPosition.startTime > 0 && stakingPosition.lockedPeriod > 0 && (stakingPosition.lockStartTime+stakingPosition.lockedPeriod) > block.timestamp) {
            return (stakingPosition.lockStartTime+stakingPosition.lockedPeriod) - block.timestamp;
        }
        return 0;
    }

    // @dev Get level of given token
    function getTokenLevel(uint256 tokenId) external view returns(uint64) {
        Position memory stakingPosition = stakingPositions[tokenId];
        return stakingPosition.level;
    }

    // @dev Get all staked tokenIds of given owner
    function getOwnerStakedTokenIds(address owner) public view returns(uint256[] memory) {

        unchecked {

            uint256[] memory stakedTokenIds = new uint256[](3433);
            uint256 stakedTokenBalance;
            uint256 arrCounter;
            uint256 stakedIndex;

            for(uint256 tokenId = 1; tokenId <= 3433; tokenId++) {
                Position memory stakingPosition = stakingPositions[tokenId];

                if( stakingPosition.owner == owner ) {
                    stakedTokenBalance++;
                    stakedTokenIds[arrCounter++] = tokenId;
                }
            }

            if( stakedTokenBalance > 0 ) {
                arrCounter = 0;

                uint256[] memory trimmedStakedTokenIds = new uint256[](stakedTokenBalance);

                do {
                    trimmedStakedTokenIds[arrCounter++] = stakedTokenIds[stakedIndex++];
                } while( stakedTokenIds[stakedIndex] > 0 );

                return trimmedStakedTokenIds;

            } else {

                uint256[] memory trimmedStakedTokenIds;
                return trimmedStakedTokenIds;
            }

        }

    }

    // @dev Get all staked positions of given owner
    function getOwnerStakedTokenPositions(address owner) public view returns(ReadablePosition[] memory) {

        unchecked {

            uint256[] memory stakedTokenIds = getOwnerStakedTokenIds(owner);
            ReadablePosition[] memory stakedTokenPositions = new ReadablePosition[](stakedTokenIds.length);

            for(uint256 i = 0; i < stakedTokenIds.length; i++) {
                stakedTokenPositions[i] = _convertToReadablePosition(stakedTokenIds[i], stakingPositions[stakedTokenIds[i]]);
            }

            return stakedTokenPositions;

        }

    }

    // @dev Get all staked tokenIds
    function getStakedTokenIds() public view returns(uint256[] memory) {

        unchecked {

            uint256[] memory stakedTokenIds = new uint256[](3433);
            uint256 stakedTokenBalance;
            uint256 arrCounter;
            uint256 stakedIndex;

            for(uint256 tokenId = 1; tokenId <= 3433; tokenId++) {
                Position memory stakingPosition = stakingPositions[tokenId];

                if( stakingPosition.startTime > 0 ) {
                    stakedTokenBalance++;
                    stakedTokenIds[arrCounter++] = tokenId;
                }
            }

            if( stakedTokenBalance > 0 ) {
                arrCounter = 0;

                uint256[] memory trimmedStakedTokenIds = new uint256[](stakedTokenBalance);

                do {
                    trimmedStakedTokenIds[arrCounter++] = stakedTokenIds[stakedIndex++];
                } while( stakedTokenIds[stakedIndex] > 0 );

                return trimmedStakedTokenIds;

            } else {

                uint256[] memory trimmedStakedTokenIds;
                return trimmedStakedTokenIds;
            }

        }

    }

    // @dev Get all staked positions
    function getStakedTokenPositions() public view returns(ReadablePosition[] memory) {

        unchecked {

            uint256[] memory stakedTokenIds = getStakedTokenIds();
            ReadablePosition[] memory stakedTokenPositions = new ReadablePosition[](stakedTokenIds.length);

            for(uint256 i = 0; i < stakedTokenIds.length; i++) {
                stakedTokenPositions[i] = _convertToReadablePosition(stakedTokenIds[i], stakingPositions[stakedTokenIds[i]]);
            }

            return stakedTokenPositions;

        }

    }

    // @dev Get token position by given tokenId
    function getTokenPosition(uint256 tokenId) public view returns(ReadablePosition memory) {

        unchecked {
            return _convertToReadablePosition(tokenId, stakingPositions[tokenId]);
        }

    }


    // -- INTERNAL --

    // @dev Internal stake function
    function _stake(address sender, uint256 tokenId, uint40 lockedPeriod) internal {

        Position storage stakingPosition = stakingPositions[tokenId];

        if( stakingPosition.startTime > 0 ) revert TokenAlreadyStaked(tokenId);

        uint16 previousLevel = stakingPosition.level;

        stakingPosition.owner = sender;
        stakingPosition.startTime = uint40(block.timestamp);

        if( lockedPeriod > 0 ) {
            stakingPosition.lockStartTime = uint40(block.timestamp);
            stakingPosition.lockedPeriod = lockedPeriod;
            stakingPosition.level += stakingLevels[lockedPeriod];
        }

        adventurePass.transferFrom(sender, address(this), tokenId);

        emit TokenStaked(tokenId, lockedPeriod, previousLevel, stakingPosition.level);
        emit MetadataUpdate(tokenId);
    }

    // @dev Internal unstake function
    function _unstake(address recipient, uint256 tokenId) internal {

        Position storage stakingPosition = stakingPositions[tokenId];

        if( recipient != stakingPosition.owner ) revert SenderIsNotTokenOwner(tokenId);
        if( stakingPosition.startTime <= 0 ) revert TokenIsNotStaked(tokenId);
        if( stakingPosition.lockedPeriod > 0 && (stakingPosition.lockStartTime+stakingPosition.lockedPeriod) > block.timestamp ) revert TokenIsLocked(tokenId);

        stakingPosition.owner = address(0);
        stakingPosition.startTime = 0;
        stakingPosition.lockStartTime = 0;
        stakingPosition.lockedPeriod = 0;

        adventurePass.transferFrom(address(this), recipient, tokenId);

        emit TokenUnstaked(tokenId, stakingPosition.level);
    }

    // @dev Internal force unstake function. Only use with caution [!]
    function _forceUnstake(uint256 tokenId) internal {

        Position storage stakingPosition = stakingPositions[tokenId];

        if( stakingPosition.startTime <= 0 ) revert TokenIsNotStaked(tokenId);

        address recipient = stakingPosition.owner;

        stakingPosition.owner = address(0);
        stakingPosition.startTime = 0;
        stakingPosition.lockStartTime = 0;
        stakingPosition.lockedPeriod = 0;

        adventurePass.transferFrom(address(this), recipient, tokenId);

        emit TokenUnstaked(tokenId, stakingPosition.level);
    }

    // @dev Internal lock function
    function _lock(address holder, uint256 tokenId, uint40 lockedPeriod) internal {

        Position storage stakingPosition = stakingPositions[tokenId];

        if( holder != stakingPosition.owner ) revert SenderIsNotTokenOwner(tokenId);
        if( stakingPosition.startTime <= 0 ) revert TokenHasToBeStaked(tokenId);
        if( stakingPosition.lockedPeriod > 0 && (stakingPosition.lockStartTime+stakingPosition.lockedPeriod) > block.timestamp ) revert TokenIsLocked(tokenId);

        uint16 previousLevel = stakingPosition.level;

        stakingPosition.lockStartTime = uint40(block.timestamp);
        stakingPosition.lockedPeriod = lockedPeriod;
        stakingPosition.level += stakingLevels[lockedPeriod];

        emit TokenLocked(tokenId, lockedPeriod, previousLevel, stakingPosition.level);
        emit MetadataUpdate(tokenId);
    }

    // @dev Converts a stakingPosition to a readable staking position
    function _convertToReadablePosition(uint256 tokenId, Position memory stakingPosition) internal view returns (ReadablePosition memory) {

        ReadablePosition memory readableStakingPosition;

        readableStakingPosition.tokenId = tokenId;
        readableStakingPosition.owner = stakingPosition.owner;
        readableStakingPosition.level = stakingPosition.level;
        readableStakingPosition.startTime = stakingPosition.startTime;
        readableStakingPosition.lockStartTime = stakingPosition.lockStartTime;
        readableStakingPosition.lockedPeriod = stakingPosition.lockedPeriod;
        readableStakingPosition.isTokenStaked = stakingPosition.startTime > 0;
        readableStakingPosition.isTokenLocked = stakingPosition.lockedPeriod > 0;
        readableStakingPosition.tokenStakingTime = (stakingPosition.startTime > 0 ? uint40((block.timestamp - stakingPosition.startTime)) : 0);

        if( stakingPosition.startTime > 0 && stakingPosition.lockedPeriod > 0 && (stakingPosition.lockStartTime+stakingPosition.lockedPeriod) > block.timestamp) {
            readableStakingPosition.tokenLockedTimeLeft = uint40((stakingPosition.lockStartTime+stakingPosition.lockedPeriod) - block.timestamp);
        }

        return readableStakingPosition;
    }


    // -- ADMIN --

    // @dev Force unstake one or more tokens (skips contract pause and locked periods)
    function forceBatchUnstake(uint256[] calldata tokenIds) external onlyOwner {

        uint256 tokenLen = tokenIds.length;

        for(uint256 i; i < tokenLen; i++) {
            _forceUnstake(tokenIds[i]);
        }
    }

    // @dev Set level of given token
    function setTokenLevel(uint256 tokenId, uint16 level) external onlyOwner {
        Position storage stakingPosition = stakingPositions[tokenId];
        stakingPosition.level = level;

        emit TokenLevelSet(tokenId, level);
    }

    // @dev Set the adventure pass contract address
    function setAdventurePassContract(address adventurePassAddress) external onlyOwner {
        adventurePass = IDelabsAdventurePass(adventurePassAddress);

        emit AdventurePassContractChanged(adventurePassAddress);
    }

    // @dev Set available staking levels by locked periods
    function setStakingLevels(uint40[] calldata lockedPeriods, uint16[] calldata levels) external onlyOwner {
        uint256 arrLength = lockedPeriods.length;

        for(uint256 i; i < arrLength; i++ ) {
            stakingLevels[lockedPeriods[i]] = levels[i];
        }

        emit StakingLevelsUpdated();
    }

    // @dev Upsert one staking level by locked period
    function upsertStakingLevel(uint40 lockedPeriod, uint16 level) external onlyOwner {
        stakingLevels[lockedPeriod] = level;

        emit StakingLevelsUpdated();
    }

    // @dev Pause staking
    function pauseStaking() external onlyOwner {
        _pause();
    }

    // @dev Unpause staking
    function unpauseStaking() external onlyOwner {
        _unpause();
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;

}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _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);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

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

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @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.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        _paused = false;
    }

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

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

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

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

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

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

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

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

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

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * 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: UNLICENSED
pragma solidity ^0.8.16;

import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";

interface IDelabsAdventurePass is IERC721 {

}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.16;

interface IDelabsAdventurePassStaking {

    struct Position {
        address owner;
        uint40 lockedPeriod;
        uint40 startTime;
        uint40 lockStartTime;
        uint16 level;
    }

    struct ReadablePosition {
        uint256 tokenId;
        address owner;
        uint16 level;
        uint40 lockedPeriod;
        uint40 startTime;
        uint40 lockStartTime;
        uint40 tokenStakingTime;
        uint40 tokenLockedTimeLeft;
        bool isTokenStaked;
        bool isTokenLocked;
    }

    error SenderIsNotTokenOwner( uint256 tokenId );
    error TokenAlreadyStaked( uint256 tokenId );
    error TokenIsNotStaked( uint256 tokenId );
    error TokenHasToBeStaked( uint256 tokenId );
    error TokenIsLocked( uint256 tokenId );
    error InvalidLockedPeriod( uint40 lockedPeriod );

    event MetadataUpdate(uint256 tokenId); // eip-4906
    event TokenStaked( uint256 tokenId, uint40 lockedPeriod, uint16 previousLevel, uint16 targetLevel );
    event TokenUnstaked( uint256 tokenId, uint16 currentLevel );
    event TokenLocked( uint256 tokenId, uint40 lockedPeriod, uint16 previousLevel, uint16 targetLevel );
    event TokenLevelSet( uint256 tokenId, uint16 level );
    event AdventurePassContractChanged( address newContract );
    event StakingLevelsUpdated();

}

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

• No Contract Security Audit Submitted- Submit Audit Here

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IDelabsAdventurePassStaking.ReadablePosition","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenStakingStart","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenStakingTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"adventurePassAddress","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"isTokenLocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"isTokenStaked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint40","name":"lockedPeriod","type":"uint40"}],"name":"lock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauseStaking","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"adventurePassAddress","type":"address"}],"name":"setAdventurePassContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint40[]","name":"lockedPeriods","type":"uint40[]"},{"internalType":"uint16[]","name":"levels","type":"uint16[]"}],"name":"setStakingLevels","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint16","name":"level","type":"uint16"}],"name":"setTokenLevel","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint40","name":"lockedPeriod","type":"uint40"}],"name":"stake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint40","name":"","type":"uint40"}],"name":"stakingLevels","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakingPositions","outputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint40","name":"lockedPeriod","type":"uint40"},{"internalType":"uint40","name":"startTime","type":"uint40"},{"internalType":"uint40","name":"lockStartTime","type":"uint40"},{"internalType":"uint16","name":"level","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpauseStaking","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"unstake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint40","name":"lockedPeriod","type":"uint40"},{"internalType":"uint16","name":"level","type":"uint16"}],"name":"upsertStakingLevel","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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