// File: Context.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

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

// File: ibg-ido.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../Ownable.sol";

contract ibgPresale is Ownable {

    IERC20 public ibgToken = IERC20(0xF16CD087e1C2C747b2bDF6f9A5498AA400D99C24);
    bool public openStaked = false;        
    bool public openRedeemed = false;      
    uint256 public redeemedFee = 90;      

    struct StakedInfo {
        address _address;   
        uint8 _type;        
        uint8 _combo;       
        uint256 _number;    
        uint256 _time;      
        uint256 _serialNumber;      
        uint256 _myorderNumber;     
    }

    struct UserInfo {
        address _parentAddress;
        uint256 _ordersNumber;  
        uint256 _stakedNumber;  
        uint256 _level;         
        bool _vip;              
    }

    mapping (address => mapping (uint256 => StakedInfo)) public myorders;     
    mapping (address => uint256) public recommends;      
    mapping (address => UserInfo) public userInfos;     
    mapping (uint8 => uint256) public comboMap;         
    uint256 public stakedNum = 0;   
    mapping (uint256 => StakedInfo) public orders;
    uint256 public discount;

    function setDiscount (uint256 _discount) public onlyOwner {
        discount = _discount;
    }

    
    function setVip (address _vipAddress, bool _true) public onlyOwner {
        UserInfo memory userinfo = userInfos[_vipAddress];
        userinfo._vip = _true;
        userInfos[_vipAddress] = userinfo;
    }

    
    event SetViplist(address indexed user, address[] _account, bool _bool);
    function setViplist(address[] memory _vipAddress, bool _bool) public onlyOwner {
        for (uint256 i = 0; i < _vipAddress.length; i++) {
            address _address = _vipAddress[i];
            UserInfo memory userinfo = userInfos[_address];
            userinfo._vip = _bool;
            userInfos[_address] = userinfo;
        }

        emit SetViplist(msg.sender, _vipAddress, _bool);
    }

    
    function staked(uint8  _combo, address _parent) public {
        uint256 amount = (comboMap[_combo] * discount)/100;
        UserInfo memory userinfo = userInfos[msg.sender];
        require((amount != 0 && openStaked) || userinfo._vip, "staked: error1");
        require(userinfo._stakedNumber == 0 || _combo > userinfo._level, "staked: error2");
        
        require(address(msg.sender) != _parent, "Participate: The recommender cannot be yourself");
        if (recommends[msg.sender] == 0 && _parent != address(0x0000000000000000000000000000000000000000) && userinfo._parentAddress == address(0x0000000000000000000000000000000000000000)) {
            userinfo._parentAddress = _parent;  
            recommends[_parent] += 1;
        }

        uint256 _transfer = amount - userinfo._stakedNumber;    

        userinfo._level = _combo;       
        userinfo._ordersNumber = 1;     
        userinfo._stakedNumber = amount; 
        ibgToken.transferFrom(msg.sender, address(this), _transfer);

        StakedInfo memory info = myorders[msg.sender][userinfo._ordersNumber];
        if (info._serialNumber == 0) {
            info._address = msg.sender;
            info._combo = _combo;
            info._number = amount;
            info._type = 1;
            info._serialNumber = stakedNum;
            info._time = block.timestamp;
            info._myorderNumber = userinfo._ordersNumber;

            myorders[msg.sender][userinfo._ordersNumber] = info;    
            orders[stakedNum] = info;                               
            stakedNum += 1;
        } else {

            info._combo = _combo;
            info._number = amount;
            info._type = 1;
            info._time = block.timestamp;

            myorders[msg.sender][userinfo._ordersNumber] = info;    
            orders[info._serialNumber] = info;                      
        }
        
        userInfos[msg.sender] = userinfo;
        
    }

    
    function redeemed(uint256 _serialNumber) public {
        StakedInfo memory info = orders[_serialNumber];     
        UserInfo memory userinfo = userInfos[msg.sender];
        uint256 amount = info._number;
        require(openRedeemed && info._type == 1 && info._address == msg.sender, "redeemed: error");
        ibgToken.transfer(msg.sender, (amount * redeemedFee)/100);
        
        info._type = 2;
        info._time = block.timestamp;
        orders[_serialNumber] = info;                        
        myorders[msg.sender][info._myorderNumber] = info;    
        userinfo._stakedNumber = 0;                          
        userinfo._level = 0;
        userInfos[msg.sender] = userinfo;
    }

    function setCombo(uint8 _combo, uint256 _amount, uint8 _decimals) public onlyOwner {
        comboMap[_combo] = _amount * 10**_decimals;
    }

    event SetCombolist(address indexed user, uint8[] _combo, uint256[] _amount);
    function setCombolist(uint8[] memory _combo, uint256[] memory _amount) public onlyOwner {
        for (uint256 i = 0; i < _combo.length; i++) {
            uint8 key = _combo[i];
            comboMap[key] = _amount[i] * 10**18;
        }

        emit SetCombolist(msg.sender, _combo, _amount);
    }

    function setOpenStaked(bool _open) public onlyOwner {
        openStaked = _open;
    }
    function setOpenRedeemed(bool _open) public onlyOwner {
        openRedeemed = _open;
    }
    function destoryContract () public onlyOwner {
        ibgToken.transfer(msg.sender, ibgToken.balanceOf(address(this)));
    }
    function setRedeemedFee (uint256 _redeemedFee) public onlyOwner {
        redeemedFee = _redeemedFee;
    }
    function setIBGToken (IERC20 _ibgToken) public onlyOwner {
        ibgToken = _ibgToken;
    }
}
// File: IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// File: Ownable.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./Context.sol";

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

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _setOwner(_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 {
        _setOwner(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");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}