Cryo Explorer Ethereum Mainnet

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

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

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

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

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.27;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";

abstract contract MiningLicenseNFT {
    function mint(address user, uint256 quantity) public virtual;
}

contract BuyingLicense is Ownable, ReentrancyGuard {
    MiningLicenseNFT public fetcher;
    uint256 public totalNumberOfPhases;
    uint256 public referralPr = 1000;
    uint256 public debPr = 500;
    address payable public reciverAdr;
    address payable public pool1;
    address payable public pool2;
    bool public isSaleStop;
    using SafeMath for uint256;

    struct phase {
        uint256 price;
        uint256 totalLicense;
        uint256 quantitySale;
        uint256 totalBuy;
        uint256 startTime;
        uint256 endTime;
        bool isDeactivate;
    }

    struct buyerRecord {
        uint amount;
        address referral;
        uint claimAmount;
    }

    event referralIncome(address buyer ,address referral ,uint256 amount);

    mapping ( address /*address of the user */ => buyerRecord) public records;

    mapping (uint256 => uint256)public bonusRewards;


    mapping(uint256 => phase) public perPhase;

    constructor() Ownable(msg.sender) {
        uint256 _price = 0.1 ether;
        for(uint i = 0 ; i < 20 ; i++){
            perPhase[i].endTime = block.timestamp + (((i+1) * 90) * 1 days);
            perPhase[i].price = _price;
            perPhase[i].totalLicense = 5000;
            _price += (_price * 5)/100;
        }

        for (uint z = 5; z < 10; z++) {
            bonusRewards[z] = 500;
        }

    }

    function buyLicense(uint256 phaseValue, uint256 quantity, address referral) public payable nonReentrant {
        phase memory value = perPhase[phaseValue];
        uint256 sendAmount = msg.value;

        require(referral == address(0) || records[referral].amount > 0,"Invalid referral");
        require(value.price > 0,"Price does not exist");

        if (referral != address(0) && records[msg.sender].referral == address(0)){
            records[msg.sender].referral = referral;
        }

        require(!isSaleStop, "Currently selling has been stoped");
        require(
            (value.totalLicense - value.quantitySale) > quantity,
            "Invalid quantity"
        );
        require(
            value.startTime < block.timestamp &&
                value.endTime > block.timestamp,
            "Either start or end time does not match our data"
        );
        uint256 totalAmount = quantity * value.price;

        if (bonusRewards[quantity] > 0) {
            uint bonus = (totalAmount * bonusRewards[quantity])/10000;
            if (bonus > 0){
                totalAmount -= bonus; 
            }
        }

        require(!value.isDeactivate, "Phase is deactivated");

        require(totalAmount <= sendAmount, "Invalid amount for buying");

        if (records[msg.sender].referral !=  address(0)){
            uint256 amount = (sendAmount * referralPr)/10000;
            payable(records[msg.sender].referral).transfer(amount);
            emit referralIncome(msg.sender, referral, amount);
        }
        if (debPr > 0 ) reciverAdr.transfer((sendAmount * debPr)/10000);

        uint256 balance = (address(this).balance).div(2);
        if (balance > 0){
        pool1.transfer(balance);
        pool2.transfer(balance);
        }
        fetcher.mint(msg.sender, quantity);
        records[msg.sender].amount += quantity;
        perPhase[phaseValue].totalBuy += totalAmount;
        perPhase[phaseValue].quantitySale += quantity;
    }

    function whiteListUser(address[] memory users, uint256[] memory quantity)
        external
        onlyOwner
    {
        require(users.length == quantity.length, "Invalid argument");
        for (uint256 i = 0; i < users.length; ) {
            fetcher.mint(users[i], quantity[i]);
            unchecked {
                i++;
            }
        }
    }

    function setMiningLicenseAdr(address adr) public onlyOwner {
        fetcher = MiningLicenseNFT(adr);
    }

    function setPhase(phase memory value, uint256 index) public onlyOwner {
        perPhase[index] = value;
    }

    function setPhasePrice(uint256 phaseIndex, uint256 newPrice)
        external
        onlyOwner
    {
        perPhase[phaseIndex].price = newPrice;
    }

    function setPhaseTotalLicense(uint256 phaseIndex, uint256 newTotalLicense)
        external
        onlyOwner
    {
        require(
            newTotalLicense >= perPhase[phaseIndex].quantitySale,
            "New total less than already sold"
        );
        perPhase[phaseIndex].totalLicense = newTotalLicense;
    }

    function setPhaseStartTime(uint256 phaseIndex, uint256 newStartTime)
        external
        onlyOwner
    {
        perPhase[phaseIndex].startTime = newStartTime;
    }

    function setPhaseEndTime(uint256 phaseIndex, uint256 newEndTime)
        external
        onlyOwner
    {
        perPhase[phaseIndex].endTime = newEndTime;
    }

    function setPhaseIsDeactivate(uint256 phaseIndex, bool deactivate)
        external
        onlyOwner
    {
        perPhase[phaseIndex].isDeactivate = deactivate;
    }

    function withdrawalFund(address payable receiver, uint256 amount)
        public
        onlyOwner
    {
        receiver.transfer(amount);
    }

    function setReferralPr(uint256 newPr) external onlyOwner {
        referralPr = newPr;
    }

    function setDebtPr(uint256 newPr) external onlyOwner {
        debPr = newPr;
    }

    function setReciverAdr(address adr) public onlyOwner{
        reciverAdr = payable(adr);
    }

    function setBonus(uint256 key,uint256 value)public onlyOwner {
        bonusRewards[key] = value;
    }

    function setPool1sAdr(address payable  pool_)public onlyOwner {
        pool1 = pool_;
    }

    function setPool2Adr(address payable  pool_)public onlyOwner {
        pool2 = pool_;
    }
    
    function setSaleStop() public onlyOwner {
        isSaleStop = !isSaleStop;        
    }
}