creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "contracts/PoolStakingLock.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/utils/math/SafeMath.sol\";\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"@openzeppelin/contracts/utils/Address.sol\";\nimport \"./imports/IBEP20.sol\";\nimport \"./imports/SafeBEP20.sol\";\n\n\ncontract PoolStakingLock is Ownable, ReentrancyGuard {\n    using SafeMath for uint256;\n    using SafeBEP20 for IBEP20;\n\n    // The address of retrostaking factory\n    address public POOL_STAKING_FACTORY;\n\n    // Whether a limit is set for users\n    bool public hasUserLimit;\n\n    // Whether a limit is set for Pool\n    bool public hasPoolLimit;\n\n    // Whether a HarvestLock\n    bool public hasPoolHL;\n\n    // Whether a WithdrawLock\n    bool public hasPoolWL;\n\n    // Whether it is initialized\n    bool public isInitialized;\n\n    // Accrued token per share\n    uint256 public accTokenPerShare;\n\n    // The block number when mining ends.\n    uint256 public bonusEndBlock;\n\n    // The block number when mining starts.\n    uint256 public startBlock;\n\n    // The block number of the last pool update\n    uint256 public lastRewardBlock;\n\n    // The pool limit (0 if none)\n    uint256 public poolLimitPerUser;\n\n    // The pool limit global staking (0 if none)\n    uint256 public poolLimitGlobal;\n\n    // The pool minimum limit for amount deposited\n    uint256 public poolMinDeposit;\n\n    // Tokens created per block.\n    uint256 public rewardPerBlock;\n\n    // Total locked up rewards\n    uint256 public totalLockedUpRewards;\n\n    // The precision factor\n    uint256 public PRECISION_FACTOR;\n\n    // Keep track of number of tokens staked in case the contract earns reflect fees\n    uint256 public totalStaked = 0;\n\n    // The reward token\n    IBEP20 public rewardToken;\n\n    // The staked token\n    IBEP20 public stakedToken;\n\n    // Info of each user that stakes tokens (stakedToken)\n    mapping(address => UserInfo) public userInfo;\n\n    struct UserInfo {\n        uint256 amount; // How many staked tokens the user has provided\n        uint256 rewardDebt; // Reward debt\n        uint256 rewardLockedUp; //Reward locked up\n    }\n\n    event AdminTokenRecovery(address tokenRecovered, uint256 amount);\n    event Deposit(address indexed user, uint256 amount);\n    event EmergencyWithdraw(address indexed user, uint256 amount);\n    event NewStartAndEndBlocks(uint256 startBlock, uint256 endBlock);\n    event NewRewardPerBlock(uint256 rewardPerBlock);\n    event NewPoolLimit(uint256 poolLimitPerUser);\n    event RewardsStop(uint256 blockNumber);\n    event Withdraw(address indexed user, uint256 amount);\n    event Harvest(address indexed user, uint256 amount);\n\n    constructor() {\n        POOL_STAKING_FACTORY = msg.sender;\n    }\n\n    /*\n     * @notice Initialize the contract\n     * @param _stakedToken: staked token address\n     * @param _rewardToken: reward token address\n     * @param _rewardPerBlock: reward per block (in rewardToken)\n     * @param _startBlock: start block\n     * @param _bonusEndBlock: end block\n     * @param _poolLimitPerUser: pool limit per user in stakedToken (if any, else 0)\n     * @param _poolLimitGlobal: pool limit global in stakedToken (if any, else 0)\n     * @param _poolMinDeposit: pool minimal limit for deposited amount\n     * @param _poolHarvestLock: pool Harvest is locked (if true is enable, else false is disable)\n     * @param _poolWithdrawLock: pool Withdraw is locked (if true is enable, else false is disable)\n     * @param _admin: admin address with ownership\n     */\n    function initialize(\n        IBEP20 _stakedToken,\n        IBEP20 _rewardToken,\n        uint256 _rewardPerBlock,\n        uint256 _startBlock,\n        uint256 _bonusEndBlock,\n        uint256 _poolLimitPerUser,\n        uint256 _poolLimitGlobal,\n        uint256 _poolMinDeposit,\n        bool _poolHarvestLock,\n        bool _poolWithdrawLock,\n        address _admin\n    ) external {\n        require(!isInitialized, \"Already initialized\");\n        require(msg.sender == POOL_STAKING_FACTORY, \"Not factory\");\n\n        // Make this contract initialized\n        isInitialized = true;\n\n        stakedToken = _stakedToken;\n        rewardToken = _rewardToken;\n        rewardPerBlock = _rewardPerBlock;\n        startBlock = _startBlock;\n        bonusEndBlock = _bonusEndBlock;\n\n        if (_poolLimitPerUser > 0) {\n            hasUserLimit = true;\n            poolLimitPerUser = _poolLimitPerUser;\n        }\n\n        if (_poolLimitGlobal > 0) {\n            hasPoolLimit = true;\n            poolLimitGlobal = _poolLimitGlobal;\n        }\n\n        if (_poolMinDeposit > 0) {\n            poolMinDeposit = _poolMinDeposit;\n        }\n\n        if (_poolHarvestLock) {\n            hasPoolHL = true;\n        }\n\n        if (_poolWithdrawLock) {\n            hasPoolWL = true;\n        }\n\n        uint256 decimalsRewardToken = uint256(rewardToken.decimals());\n        require(decimalsRewardToken < 30, \"Must be inferior to 30\");\n\n        PRECISION_FACTOR = uint256(10**(uint256(30).sub(decimalsRewardToken)));\n\n        // Set the lastRewardBlock as the startBlock\n        lastRewardBlock = startBlock;\n\n        // Transfer ownership to the admin address who becomes owner of the contract\n        transferOwnership(_admin);\n    }\n\n    /*\n     * @notice Deposit staked tokens and collect reward tokens (if any)\n     * @param _amount: amount to withdraw (in rewardToken)\n     */\n    function deposit(uint256 _amount) external nonReentrant {\n        UserInfo storage user = userInfo[msg.sender];\n        require(\n            _getBlockNumber() < bonusEndBlock, \n            \"Cannot deposit after the last reward block\"\n        );\n        uint256 finalDepositAmount = 0;\n\n        if (hasUserLimit) {\n            require(\n                _amount.add(user.amount) <= poolLimitPerUser,\n                \"User amount above limit\"\n            );\n        }\n\n        if (hasPoolLimit) {\n            require(\n                _amount.add(totalStaked) <= poolLimitGlobal,\n                \"Global amount above limit\"\n            );\n        }\n\n        require(\n            user.amount + _amount >= poolMinDeposit,\n            \"Amount under limit\"\n        );\n\n        _updatePool();\n\n        if (user.amount > 0) {\n            payOrLockupPending(user);\n        }\n\n        if (_amount > 0) {\n            uint256 preStakeBalance = stakedToken.balanceOf(address(this));\n            stakedToken.safeTransferFrom(\n                address(msg.sender),\n                address(this),\n                _amount\n            );\n            finalDepositAmount = stakedToken.balanceOf(address(this)).sub(\n                preStakeBalance\n            );\n            user.amount = user.amount.add(finalDepositAmount);\n            totalStaked = totalStaked.add(finalDepositAmount);\n        }\n\n        _updateRewardDebt(user);\n\n        emit Deposit(msg.sender, _amount);\n    }\n\n    /*\n     * @notice Withdraw staked tokens and collect reward tokens\n     * @param _amount: amount to withdraw (in rewardToken)\n     */\n    function withdraw(uint256 _amount) external nonReentrant {\n        UserInfo storage user = userInfo[msg.sender];\n        bool poolStatusWithdraw = poolWIsLock();\n        require(user.amount >= _amount, \"Amount to withdraw too high\");\n\n        _updatePool();\n\n        // Withdraw pending AUTO\n        payOrLockupPending(user);\n\n        if (!poolStatusWithdraw) {\n            if (_amount > 0) {\n                stakedToken.safeTransfer(address(msg.sender), _amount);\n                user.amount = user.amount.sub(_amount);\n                totalStaked = totalStaked.sub(_amount);\n            }\n        } else {\n            revert(\"Pool locked\");\n        }\n\n        _updateRewardDebt(user);\n\n        emit Withdraw(msg.sender, _amount);\n    }\n\n    function harvest() external nonReentrant {\n        UserInfo storage user = userInfo[msg.sender];\n        _updatePool();\n\n        // Withdraw pending AUTO\n        require(payOrLockupPending(user), \"Harvests locked\");\n        _updateRewardDebt(user);\n    }\n\n    /*\n     * @notice Withdraw staked tokens without caring about rewards\n     * @dev Needs to be for emergency.\n     */\n    function emergencyWithdraw() external nonReentrant {\n        UserInfo storage user = userInfo[msg.sender];\n\n        uint256 amountToTransfer = user.amount;\n        user.amount = 0;\n        user.rewardDebt = 0;\n\n        if (amountToTransfer > 0) {\n            stakedToken.safeTransfer(address(msg.sender), amountToTransfer);\n            totalStaked = totalStaked.sub(amountToTransfer);\n        }\n\n        emit EmergencyWithdraw(msg.sender, user.amount);\n    }\n\n    function rewardBalance() public view returns (uint256) {\n        uint256 balance = rewardToken.balanceOf(address(this));\n        if (stakedToken == rewardToken) return balance.sub(totalStaked);\n        return balance;\n    }\n\n    function totalStakeTokenBalance() public view returns (uint256) {\n        if (stakedToken == rewardToken) return totalStaked;\n        return stakedToken.balanceOf(address(this));\n    }\n\n    function poolHIsLock() public view returns (bool) {\n        bool statusPool;\n        if (hasPoolHL) {\n            statusPool = bonusEndBlock >= _getBlockNumber();\n            if (startBlock >= _getBlockNumber()) {\n                statusPool = false;\n            }\n        }\n        return statusPool;\n    }\n\n    function poolWIsLock() public view returns (bool) {\n        bool statusPool;\n        if (hasPoolWL) {\n            statusPool = bonusEndBlock >= _getBlockNumber();\n            if (startBlock >= _getBlockNumber()) {\n                statusPool = false;\n            }\n        }\n        return statusPool;\n    }\n\n    function poolChangeHLock(bool _value) public onlyOwner {\n        hasPoolHL = _value;\n    }\n\n    function poolChangeWLock(bool _value) public onlyOwner {\n        hasPoolWL = _value;\n    }\n\n    /*\n     * @notice Stop rewards\n     * @dev Only callable by owner. Needs to be for emergency.\n     */\n    function emergencyRewardWithdraw(uint256 _amount) external onlyOwner {\n        require(_amount <= rewardBalance(), \"not enough rewards\");\n        rewardToken.safeTransfer(address(msg.sender), _amount);\n    }\n\n    /**\n     * @notice It allows the admin to recover wrong tokens sent to the contract\n     * @param _tokenAddress: the address of the token to withdraw\n     * @param _tokenAmount: the number of tokens to withdraw\n     * @dev This function is only callable by admin.\n     */\n    function recoverWrongTokens(address _tokenAddress, uint256 _tokenAmount)\n        external\n        onlyOwner\n    {\n        require(\n            _tokenAddress != address(stakedToken),\n            \"Cannot be staked token\"\n        );\n\n        IBEP20(_tokenAddress).safeTransfer(address(msg.sender), _tokenAmount);\n\n        emit AdminTokenRecovery(_tokenAddress, _tokenAmount);\n    }\n\n    /*\n     * @notice Stop rewards\n     * @dev Only callable by owner\n     */\n    function stopReward() external onlyOwner {\n        bonusEndBlock = _getBlockNumber();\n    }\n\n    /*\n     * @notice Update pool limit per user\n     * @dev Only callable by owner.\n     * @param _hasUserLimit: whether the limit remains forced\n     * @param _poolLimitPerUser: new pool limit per user\n     */\n    function updatePoolLimitPerUser(\n        bool _hasUserLimit,\n        uint256 _poolLimitPerUser\n    ) external onlyOwner {\n        require(hasUserLimit, \"Must be set\");\n        if (_hasUserLimit) {\n            require(\n                _poolLimitPerUser > poolLimitPerUser,\n                \"New limit must be higher\"\n            );\n            poolLimitPerUser = _poolLimitPerUser;\n        } else {\n            hasUserLimit = _hasUserLimit;\n            poolLimitPerUser = 0;\n        }\n        emit NewPoolLimit(poolLimitPerUser);\n    }\n\n    /*\n     * @notice Update reward per block\n     * @dev Only callable by owner.\n     * @param _rewardPerBlock: the reward per block\n     */\n    function updateRewardPerBlock(uint256 _rewardPerBlock) external onlyOwner {\n        require(_getBlockNumber() < startBlock, \"Pool has started\");\n        rewardPerBlock = _rewardPerBlock;\n        emit NewRewardPerBlock(_rewardPerBlock);\n    }\n\n    /**\n     * @notice It allows the admin to update start and end blocks\n     * @dev This function is only callable by owner.\n     * @param _startBlock: the new start block\n     * @param _bonusEndBlock: the new end block\n     */\n    function updateStartAndEndBlocks(\n        uint256 _startBlock,\n        uint256 _bonusEndBlock\n    ) external onlyOwner {\n        require(_getBlockNumber() < startBlock, \"Pool has started\");\n        require(\n            _startBlock < _bonusEndBlock,\n            \"New startBlock must be lower than new endBlock\"\n        );\n        require(\n            _getBlockNumber() < _startBlock,\n            \"New startBlock must be higher than current block\"\n        );\n\n        startBlock = _startBlock;\n        bonusEndBlock = _bonusEndBlock;\n\n        // Set the lastRewardBlock as the startBlock\n        lastRewardBlock = startBlock;\n\n        emit NewStartAndEndBlocks(_startBlock, _bonusEndBlock);\n    }\n\n    /*\n     * @notice View function to see pending reward on frontend.\n     * @param _user: user address\n     * @return Pending reward for a given user\n     */\n    function pendingReward(address _user) external view returns (uint256) {\n        UserInfo storage user = userInfo[_user];\n        uint256 stakedTokenSupply = totalStaked;\n        if (_getBlockNumber() > lastRewardBlock && stakedTokenSupply != 0) {\n            uint256 multiplier = _getMultiplier(lastRewardBlock, _getBlockNumber());\n            uint256 reward = multiplier.mul(rewardPerBlock);\n            uint256 adjustedTokenPerShare = accTokenPerShare.add(\n                reward.mul(PRECISION_FACTOR).div(stakedTokenSupply)\n            );\n            uint256 pending = user\n                .amount\n                .mul(adjustedTokenPerShare)\n                .div(PRECISION_FACTOR)\n                .sub(user.rewardDebt);\n            return pending.add(user.rewardLockedUp);\n        } else {\n            uint256 pending = user\n                .amount\n                .mul(accTokenPerShare)\n                .div(PRECISION_FACTOR)\n                .sub(user.rewardDebt);\n            return pending.add(user.rewardLockedUp);\n        }\n    }\n\n    function payOrLockupPending(UserInfo storage user) internal returns(bool) {\n        bool poolStatusHarvest = poolHIsLock();\n\n        uint256 pending = user\n            .amount\n            .mul(accTokenPerShare)\n            .div(PRECISION_FACTOR)\n            .sub(user.rewardDebt);\n        uint256 totalRewards = pending.add(user.rewardLockedUp);\n\n        if (!poolStatusHarvest) {\n            if (totalRewards > 0) {\n                // reset lockup\n                totalLockedUpRewards = totalLockedUpRewards.sub(\n                    user.rewardLockedUp\n                );\n                user.rewardLockedUp = 0;\n\n                // send rewards\n                uint256 currentRewardBalance = rewardBalance();\n                if (currentRewardBalance > 0) {\n                    if (totalRewards > currentRewardBalance) {\n                        rewardToken.safeTransfer(\n                            address(msg.sender),\n                            currentRewardBalance\n                        );\n                        emit Harvest(msg.sender, currentRewardBalance);\n                    } else {\n                        rewardToken.safeTransfer(\n                            address(msg.sender),\n                            totalRewards\n                        );\n                        emit Harvest(msg.sender, totalRewards);\n                    }\n                }\n            }\n        } else if (pending > 0) {\n            user.rewardLockedUp = user.rewardLockedUp.add(pending);\n            totalLockedUpRewards = totalLockedUpRewards.add(pending);\n        }\n\n        return !poolStatusHarvest;\n    }\n\n    function _updateRewardDebt(UserInfo storage user) internal {\n        user.rewardDebt = user.amount.mul(accTokenPerShare).div(\n            PRECISION_FACTOR\n        );\n    }\n\n    /*\n     * @notice Update reward variables of the given pool to be up-to-date.\n     */\n    function _updatePool() internal {\n        if (_getBlockNumber() <= lastRewardBlock) {\n            return;\n        }\n\n        uint256 stakedTokenSupply = totalStaked;\n\n        if (stakedTokenSupply == 0) {\n            lastRewardBlock = _getBlockNumber();\n            return;\n        }\n\n        uint256 multiplier = _getMultiplier(lastRewardBlock, _getBlockNumber());\n        uint256 reward = multiplier.mul(rewardPerBlock);\n        accTokenPerShare = accTokenPerShare.add(\n            reward.mul(PRECISION_FACTOR).div(stakedTokenSupply)\n        );\n        lastRewardBlock = _getBlockNumber();\n    }\n\n    /*\n     * @notice Return reward multiplier over the given _from to _to block.\n     * @param _from: block to start\n     * @param _to: block to finish\n     */\n    function _getMultiplier(uint256 _from, uint256 _to)\n        internal\n        view\n        returns (uint256)\n    {\n        if (_to <= bonusEndBlock) {\n            return _to.sub(_from);\n        } else if (_from >= bonusEndBlock) {\n            return 0;\n        } else {\n            return bonusEndBlock.sub(_from);\n        }\n    }\n\n    function _getBlockNumber() internal view virtual returns(uint256) {\n        return block.number;\n    }\n}\n"
      },
      "@openzeppelin/contracts/access/Ownable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/math/SafeMath.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)\n\npragma solidity ^0.8.0;\n\n// CAUTION\n// This version of SafeMath should only be used with Solidity 0.8 or later,\n// because it relies on the compiler's built in overflow checks.\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations.\n *\n * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler\n * now has built in overflow checking.\n */\nlibrary SafeMath {\n    /**\n     * @dev Returns the addition of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            uint256 c = a + b;\n            if (c < a) return (false, 0);\n            return (true, c);\n        }\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            if (b > a) return (false, 0);\n            return (true, a - b);\n        }\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n            // benefit is lost if 'b' is also tested.\n            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n            if (a == 0) return (true, 0);\n            uint256 c = a * b;\n            if (c / a != b) return (false, 0);\n            return (true, c);\n        }\n    }\n\n    /**\n     * @dev Returns the division of two unsigned integers, with a division by zero flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            if (b == 0) return (false, 0);\n            return (true, a / b);\n        }\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            if (b == 0) return (false, 0);\n            return (true, a % b);\n        }\n    }\n\n    /**\n     * @dev Returns the addition of two unsigned integers, reverting on\n     * overflow.\n     *\n     * Counterpart to Solidity's `+` operator.\n     *\n     * Requirements:\n     *\n     * - Addition cannot overflow.\n     */\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a + b;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting on\n     * overflow (when the result is negative).\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     *\n     * - Subtraction cannot overflow.\n     */\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a - b;\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, reverting on\n     * overflow.\n     *\n     * Counterpart to Solidity's `*` operator.\n     *\n     * Requirements:\n     *\n     * - Multiplication cannot overflow.\n     */\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a * b;\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers, reverting on\n     * division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator.\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a / b;\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * reverting when dividing by zero.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a % b;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n     * overflow (when the result is negative).\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {trySub}.\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     *\n     * - Subtraction cannot overflow.\n     */\n    function sub(\n        uint256 a,\n        uint256 b,\n        string memory errorMessage\n    ) internal pure returns (uint256) {\n        unchecked {\n            require(b <= a, errorMessage);\n            return a - b;\n        }\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers, reverting with custom message on\n     * division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\n     * uses an invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function div(\n        uint256 a,\n        uint256 b,\n        string memory errorMessage\n    ) internal pure returns (uint256) {\n        unchecked {\n            require(b > 0, errorMessage);\n            return a / b;\n        }\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * reverting with custom message when dividing by zero.\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {tryMod}.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function mod(\n        uint256 a,\n        uint256 b,\n        string memory errorMessage\n    ) internal pure returns (uint256) {\n        unchecked {\n            require(b > 0, errorMessage);\n            return a % b;\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        // On the first call to nonReentrant, _notEntered will be true\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n\n        _;\n\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCall(target, data, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        require(isContract(target), \"Address: call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        require(isContract(target), \"Address: static call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(isContract(target), \"Address: delegate call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            // Look for revert reason and bubble it up if present\n            if (returndata.length > 0) {\n                // The easiest way to bubble the revert reason is using memory via assembly\n                /// @solidity memory-safe-assembly\n                assembly {\n                    let returndata_size := mload(returndata)\n                    revert(add(32, returndata), returndata_size)\n                }\n            } else {\n                revert(errorMessage);\n            }\n        }\n    }\n}\n"
      },
      "contracts/imports/IBEP20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\ninterface IBEP20 {\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the token decimals.\n     */\n    function decimals() external view returns (uint8);\n\n    /**\n     * @dev Returns the token symbol.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the token name.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the bep token owner.\n     */\n    function getOwner() external view returns (address);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `recipient`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address recipient, uint256 amount)\n        external\n        returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address _owner, address spender)\n        external\n        view\n        returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `sender` to `recipient` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address sender,\n        address recipient,\n        uint256 amount\n    ) external returns (bool);\n\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(\n        address indexed owner,\n        address indexed spender,\n        uint256 value\n    );\n}"
      },
      "contracts/imports/SafeBEP20.sol": {
        "content": "pragma solidity >=0.8.0;\n\nimport \"@openzeppelin/contracts/utils/math/SafeMath.sol\";\nimport \"@openzeppelin/contracts/utils/Address.sol\";\nimport \"./IBEP20.sol\";\n\n\n\n/**\n * @title SafeBEP20\n * @dev Wrappers around BEP20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeBEP20 for IBEP20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeBEP20 {\n    using SafeMath for uint256;\n    using Address for address;\n\n    function safeTransfer(\n        IBEP20 token,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(\n            token,\n            abi.encodeWithSelector(token.transfer.selector, to, value)\n        );\n    }\n\n    function safeTransferFrom(\n        IBEP20 token,\n        address from,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(\n            token,\n            abi.encodeWithSelector(token.transferFrom.selector, from, to, value)\n        );\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IBEP20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(\n        IBEP20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        // solhint-disable-next-line max-line-length\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"SafeBEP20: approve from non-zero to non-zero allowance\"\n        );\n        _callOptionalReturn(\n            token,\n            abi.encodeWithSelector(token.approve.selector, spender, value)\n        );\n    }\n\n    function safeIncreaseAllowance(\n        IBEP20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender).add(\n            value\n        );\n        _callOptionalReturn(\n            token,\n            abi.encodeWithSelector(\n                token.approve.selector,\n                spender,\n                newAllowance\n            )\n        );\n    }\n\n    function safeDecreaseAllowance(\n        IBEP20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender).sub(\n            value,\n            \"SafeBEP20: decreased allowance below zero\"\n        );\n        _callOptionalReturn(\n            token,\n            abi.encodeWithSelector(\n                token.approve.selector,\n                spender,\n                newAllowance\n            )\n        );\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IBEP20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(\n            data,\n            \"SafeBEP20: low-level call failed\"\n        );\n        if (returndata.length > 0) {\n            // Return data is optional\n            // solhint-disable-next-line max-line-length\n            require(\n                abi.decode(returndata, (bool)),\n                \"SafeBEP20: BEP20 operation did not succeed\"\n            );\n        }\n    }\n}"
      },
      "@openzeppelin/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "libraries": {}
    }
  }}