/**
 *Submitted for verification at FTMScan.com on 2023-10-30
*/

/**
 * @title DXLock - Empowering Trust through Token Locking
 * @dev Secure, User-Friendly Smart Contract to Lock Liquidity and Regular Tokens.
 *
 * 🚀 Introduction:
 * Welcome to DXLock, the pinnacle of token locking on the blockchain! Developed with passion and precision,
 * DXLock stands out as a beacon of trust and commitment in the crypto world. This smart contract is meticulously
 * crafted to lock both liquidity tokens and regular ERC20 tokens, ensuring a secure and transparent environment
 * for your assets.
 *
 * 🌐 Visit DXLock:
 * Dive deeper into the world of DXLock by visiting our platform at [dx.app](https://dx.app). Discover a treasure trove of features,
 * tutorials, and support to elevate your token locking experience!
 *
 * 💡 Features:
 * 1. **Liquidity Locking**: Cement your project's credibility by locking liquidity tokens. Show the world that you're here to stay!
 * 2. **Token Locking**: Not just for liquidity! Lock any ERC20 tokens with ease and confidence.
 * 3. **Time-locked Security**: Your tokens are safe and sound until the predetermined unlock time hits the clock.
 * 4. **Transparent and Trustworthy**: Open-source and audited, DXLock is a fortress of reliability.
 *
 * 🛡️ Security:
 * Your trust is our top priority. DXLock is fortified with industry-leading security practices to shield your assets
 * and ensure a seamless experience. Though thorough audits have been conducted, we encourage users to do their own
 * research and verify the contract's integrity before engaging.
 *
 * 📖 How to Use:
 * Engaging with DXLock is a breeze! Simply deposit your tokens, set the lock duration, and rest easy knowing
 * your assets are in good hands. Once the lock period concludes, withdrawing is just a click away.
 *
 * 👥 Community and Support:
 * Join our vibrant community and connect with the DXLock team and fellow users! Your feedback and questions are invaluable
 * to us, as we continually strive to enhance DXLock’s functionality and user experience.
 *
 * 📜 License:
 * DXLock is proudly released under the MIT License. We believe in openness and the power of community-driven innovation.
 *
 * @author The DXLock Team
 * @notice Utilize DXLock at your own discretion. We’ve done everything to ensure its security, but the final responsibility lies with the user.
 */

// SPDX-License-Identifier: MIT

pragma solidity 0.8.14;

interface IERC20 {
    function transfer(address to, uint256 value) external returns (bool);

    function approve(address spender, uint256 value) external returns (bool);

    function transferFrom(address from, address to, uint256 value) external returns (bool);

    function totalSupply() external view returns (uint256);

    function balanceOf(address who) external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/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/v0.8.0/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 Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(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);
        }
    }
}

interface decentralizedStorage {
    function addNewLock(address _lpAddress, uint256 _locktime, address _lockContract, uint256 _tokenAmount, string memory _logo) external;
    function extendLockerTime(uint256 _userLockerNumber, uint256 _newLockTime) external;
    function transferLocker(address _newOwner, uint256 _userLockerNumber) external;
    function unlockLocker(uint256 _userLockerNumber) external;
    function changeLogo(string memory _newLogo, uint256 _userLockerNumber) external;
    function getPersonalLockerCount(address _owner) external returns (uint256);
    function getBurnContractAddress() external view returns (address);
}

interface ReferralContract {

    function getDiscountedPrice(string memory _code) external returns(uint256);
    function validateCode(string memory _code) external returns(bool);
    function fetchCodeOwner(string memory _code) external returns(address);
    function fetchCodeOwnerPercentage(string memory _code) external returns(uint256);
    function updateReferrerAmounts(address _referrer, uint256 _updateAmount)  external returns(bool);  
    function updateCodeUseNumber(string memory _code, address _presaleAddress) external returns(bool);
}
contract PersonalLPLocker is Ownable {

    uint256 public LockerType = 0;
    uint256 public LockedAmount;

    uint256 public personalLockerCount;
    address public storagePersonal;

    uint256 public LockExpireTimestamp;
    uint256 public LockerCreationTimestamp;

    bool public feePaid;
    uint256 public percFeeAmount;
    uint256 public RewardsNativeClaimed;
    mapping(address => uint256) public RewardsTokenClaimed;
    IERC20 public PersonalLockerToken;
    bool public tokenWithdrawn;

    address internal feeDeposit;
    uint256 public relockPercAmount;
    bool public relockAfterExpire = true;

    constructor (address _lockTokenAddress, uint256 _lockTimeEnd, uint256 _personalLockerCount, address _lockerStorage, uint256 _lockingAmount, bool _feeState, uint256 _feeAmount, uint256 _relockPercAmount, address _feeDeposit) {
        require(_lockingAmount > 0,"can't lock 0 Tokens");
        require(_lockTimeEnd > (block.timestamp + 600), "Please lock longer than now");

        LockedAmount = _lockingAmount;

        PersonalLockerToken = IERC20(_lockTokenAddress);

        LockExpireTimestamp = _lockTimeEnd;
        personalLockerCount = _personalLockerCount;
        storagePersonal = _lockerStorage;

        LockerCreationTimestamp = block.timestamp;

        feePaid = _feeState;
        percFeeAmount = _feeAmount;

        feeDeposit = _feeDeposit;
        relockPercAmount = _relockPercAmount;

        _transferOwnership(tx.origin);
    }

    receive() external payable {

    }

    function changeLogo(string memory _logo) external onlyOwner {
        decentralizedStorage(storagePersonal).changeLogo(_logo, personalLockerCount);
    }

    function CheckLockedBalance() public view returns (uint256){
        return PersonalLockerToken.balanceOf(address(this));
    }

    function ExtendPersonalLocker(uint256 _newLockTime) external onlyOwner {
        require(LockExpireTimestamp < _newLockTime, "You cant reduce locktime...");
        require(block.timestamp < _newLockTime, "You cant extend locktime in the past");
        require(!tokenWithdrawn, "Tokens were already withdrawn");

        if (block.timestamp > (LockExpireTimestamp + 300)) {
            uint256 amountFee = (LockedAmount * relockPercAmount) / 1000;
            PersonalLockerToken.transfer(feeDeposit, amountFee);
            LockedAmount -= amountFee;
        }

        LockExpireTimestamp = _newLockTime;
        decentralizedStorage(storagePersonal).extendLockerTime(LockExpireTimestamp, personalLockerCount);
    }

    function transferOwnership(address _newOwner) public override onlyOwner {
        _transferOwnership(_newOwner);
        decentralizedStorage(storagePersonal).transferLocker(_newOwner, personalLockerCount);
    }

    function unlockTokensAfterTimestamp() external onlyOwner {
        require(block.timestamp >= LockExpireTimestamp, "Token is still Locked");
        require(feePaid, "The fee is not yet paid");

        PersonalLockerToken.transfer(owner(), PersonalLockerToken.balanceOf(address(this)));
        LockedAmount = 0;

        if (!tokenWithdrawn){
            decentralizedStorage(storagePersonal).unlockLocker(personalLockerCount);
            tokenWithdrawn = true;
        }
        
    }

    function payFee() external onlyOwner {
        require(!feePaid, "The fee has already been paid");

        uint256 feeToPay = (PersonalLockerToken.balanceOf(address(this)) * percFeeAmount) / 1000;
        PersonalLockerToken.transfer(decentralizedStorage(storagePersonal).getBurnContractAddress(), feeToPay);
        feePaid = true;
    }

    function unlockPercentageAfterTimestamp(uint256 _percentage) external onlyOwner {
        require(_percentage <= 100, "You can't withdraw more than 100%");
        require(block.timestamp >= LockExpireTimestamp, "Token is still Locked");
        require(feePaid, "Fee not paid yet");

        uint256 amountUnlock = (PersonalLockerToken.balanceOf(address(this)) * _percentage) / 100;
        PersonalLockerToken.transfer(owner(), amountUnlock);
        LockedAmount -= amountUnlock;

        if (!tokenWithdrawn){
            decentralizedStorage(storagePersonal).unlockLocker(personalLockerCount);
            tokenWithdrawn = true;
        }
    }

    function WithdrawRewardNativeToken() external onlyOwner {
        uint256 amountFee = (address(this).balance * percFeeAmount) / 1000;
        payable(decentralizedStorage(storagePersonal).getBurnContractAddress()).transfer(amountFee);
        uint256 amount = address(this).balance;
        payable(owner()).transfer(amount);
        RewardsNativeClaimed += amount;
    }

    function WithdrawTokensReward(address _token) external onlyOwner {
        require(_token != address(PersonalLockerToken), "You can't unlock the Tokens you locked with this function!");

        uint256 amountFee = (IERC20(_token).balanceOf(address(this))* percFeeAmount) / 1000;
        IERC20(_token).transfer(decentralizedStorage(storagePersonal).getBurnContractAddress(), amountFee);

        uint256 amount = IERC20(_token).balanceOf(address(this));
        IERC20(_token).transfer(owner(), amount);
        RewardsTokenClaimed[_token] += amount;
    }

}