// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}

// File: @openzeppelin/contracts/GSN/Context.sol
//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.0;

/*
 * @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 GSN 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.
 */
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor () internal { }
    // solhint-disable-previous-line no-empty-blocks

    function _msgSender() internal view returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256`
 * (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;

        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) { // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint256(_at(set._inner, index)));
    }


    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP. Does not include
 * the optional functions; to access them see {ERC20Detailed}.
 */
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);
    function mint(address account, uint amount) external;

    /**
     * @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: @openzeppelin/contracts/math/Math.sol
//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);
    }
}

// File: @openzeppelin/contracts/ownership/Ownable.sol
//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.0;
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.
 *
 * 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.
 */
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 () internal {
        _owner = _msgSender();
        emit OwnershipTransferred(address(0), _owner);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Returns true if the caller is the current owner.
     */
    function isOwner() public view returns (bool) {
        return _msgSender() == _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 onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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 onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.12;
pragma experimental ABIEncoderV2;

import "./Ownable.sol";
import "./Address.sol";
import "./IERC20.sol";
import "./Math.sol";
import "./ReentrancyGuard.sol";
import "./SafeERC20.sol";
import "./SafeMath.sol";
import "./EnumerableSet.sol";

interface DaoContract {
    function addDaoReward(uint256 amount) external;
}

contract RacePool is ReentrancyGuard, Ownable {
    event TransferTo(address to, uint256 amount);
    event AddPoolAmount(address indexed account, uint256 amount);
    event Bet(uint256 _tID, address indexed account, uint256 _id, Result _r, uint256 _amount);
    event StartRaceReward(uint256 _tID, uint256 _id, Result _r, bool _start);
    event ClaimRaceReward(
        uint256 _tID, address indexed account, uint256 _id, Result _r, uint256 _amount);
    event ClaimBanker(address indexed account, uint256 blockNum, uint256);
    event TransferDao(address _dao, uint256 _amount);

    using SafeMath for uint256;
    using SafeERC20 for IERC20;
    using EnumerableSet for EnumerableSet.UintSet;
    
    
    IERC20 public rewardToken;
    uint256 public typeID;
    uint256 public useRate = 2000;
    uint256 public baseRate = 10000;
    uint256 multi = 1e18;
    uint256 public currRaceNum;
    uint256 public bankerID;
    uint256 public lockTime = 7 days;
    uint256 public useTime;
    uint256 public minTime;
    uint256 public userMaxBetAmount;
    uint256 public haveRewardNum;
    bool public isBankerTx = true;
    bool public bankerCanTx = true;

    enum Result {
        NONE,
        WIN,
        EQUA,
        LOSE,
        CANCEL
    }

    mapping(uint256 => TypeInfo) public typeInfo;
    mapping(uint256 => TypeUse) public typeUse;
    mapping(string => uint256) public typeNameID;
    mapping(uint256 => uint256) public raceID;
    struct TypeInfo{
        string typeName;
        uint256 capRate;
        uint256 daoRate;
        uint256 feeRate;
        uint256 haveEnd;
        uint256 lastRaceEndTime;
    }
    
    struct TypeUse {
        uint256 createTime;
        uint256 setEndTime;
        bool canTx;
    }

    PoolInfo public poolInfo;
    struct PoolInfo {
        uint256 totalRewards;
        uint256 rewards;
        uint256 maxTakeAmount;
        uint256 claim;
        uint256 lastClaim;
    }
    
    mapping (uint256 => uint256) public ballNum;
    //tid => name => id
    mapping(uint256 => mapping(string => uint256)) public nameToID;
    // tid => id => name
    mapping(uint256 => mapping(uint256 => string)) public IDToName;
    mapping(uint256 => mapping(uint256 => RaceInfo)) public raceInfo;
    struct RaceInfo {
        Result result;
        uint256 teamA;
        uint256 teamB;
        uint256 teamL;
        uint256 rateA;
        uint256 rateB;
        uint256 rateL;
        uint256 startTime;
        bool canTx;
    }
    
    mapping(uint256 => mapping(uint256 => RaceUse)) public raceUse;
    struct RaceUse {
        uint256 settlement;
        uint256 needPay;
        uint256 havePay;
        uint256 perAmount;
        uint256 remainAmount;
        uint256 reward;
        uint256 haveReward;
        uint256 perReward;
        bool canClaim;
        bool isEnd;
    }

    mapping(address => uint256) public bankerAddrID;
    // bankerAddrID => BankerInfo
    mapping(uint256 => BankerInfo) public bankerInfo;
    
    struct BankerInfo {
        address banker;
        uint256 totalAmount;
        uint256 payAmount;
        uint256 winAmount;
        uint256 lastTime;
        uint256 unLockTime;
        uint256 addNum;
    }

    // banker => raceID => BankerRace
    mapping(address => mapping(uint256 => mapping(uint256 => BankerRace))) public bankerRace;
    struct BankerRace {
        uint256 payAmount;
        uint256 winAmount;
        uint256 feeAmount;
        uint256 num;
        bool isOK;
    }

    // num => BankerTime
    mapping(address => mapping(uint256 => BankerTime)) public addInfo;
    struct BankerTime {
        uint256 amount;
        uint256 time;
        uint256 blockNum;
        uint256 currNum;
    }

    mapping(uint256 => mapping(address => mapping(uint256 => UserInfo))) public userInfo;
    struct UserInfo {
        uint256 haveRecive;
        uint256 betAmount;
        uint256 lastBetTime;
        uint256 betNum;
    }

    mapping(uint256 => mapping(address => mapping(uint256 => mapping(uint256 => UserBet)))) public userBet;
    struct UserBet{
        uint256 betAmount;
        uint256 betTeam;
        uint256 betTime;
        uint256 teamRate;
    }    

    mapping(uint256 => mapping(address => mapping(uint256 => UserRaceBet))) public userRaceBet;
    struct UserRaceBet {
        uint256 betA;
        uint256 betB;
        uint256 betL;
    }

    mapping(uint256 => mapping(uint256 => TakeAmount)) public takeRaceAmount;
    struct TakeAmount {
        uint256 takeAmountA;
        uint256 takeAmountB;
        uint256 takeAmountL;
        uint256 maxTakeAmount;
    }

    Dao public dao;
    DaoContract public daoAddr;
    mapping (uint256 => mapping(uint256 => uint256)) public raceDaoReward;
    struct Dao {
        uint256 rewardAmount;
        uint256 bankerAmount;
        uint256 tranferAmount;
    }

    mapping(address => bool) public isOperator;
    mapping(uint256 => mapping(uint256 => bool)) public startReward;
    mapping(uint256 => EnumerableSet.UintSet) needDeal;
    mapping(uint256 => mapping(uint256 => bool)) isDeal;

    constructor(
        IERC20 _token,
        uint256 _miniTime,
        uint256 _maxAmount
    ) 
        public 
    {
        rewardToken = _token;
        minTime = _miniTime;
        useTime = _miniTime;
        userMaxBetAmount = _maxAmount;
    }

    modifier raceCanTx(uint256 _tID, uint256 _id) {
        require(raceInfo[_tID][_id].canTx, "err43");
        _;
    }

    modifier tIDExist(uint256 _tID) {
        require(_tID <= typeID && _tID > 0, "err1");
        _;
    }
 
    modifier isIdExist(uint256 _tID, uint256 _id) {
        require(_id > 0 && _id <= raceID[_tID], "err5");
        _;
    }

    modifier checkRate(uint256 _useRate) {
        require(_useRate <= baseRate, "err40");
        _;
    }

    modifier isPermission() {
        require(isOperator[msg.sender] || msg.sender == owner(), "err6");
        _;
    }

    modifier checkAmount(uint256 amount) {
        require(amount > 0, "err8");
        _;
    }

    // ***********************************************
    function addOpreator(address newOperator) public onlyOwner {
        isOperator[newOperator] = true;

    }

    function removeOpreator(address operator) public onlyOwner {
        isOperator[operator] = false;
    }


    event CreateTypeInfo(string _typeName, uint256 _tID);
    function createTypeInfo(
        string memory _typeName, 
        uint256 _capRate
    ) 
        public 
        isPermission
        returns(uint256)
    {
        uint256 _tID = typeNameID[_typeName];
         if(_tID == 0){
            _tID = ++typeID;
            typeNameID[_typeName] = _tID;
            typeInfo[_tID].typeName = _typeName;
            typeInfo[_tID].capRate = _capRate;
            typeInfo[_tID].daoRate = 3000;
            typeInfo[_tID].feeRate = 4000;
            typeUse[_tID].createTime = block.timestamp;
            typeUse[_tID].canTx = true;
    
            emit CreateTypeInfo(_typeName, _tID);             
         }

        return _tID;
    }

    function updateCurrRaceNum(uint256 _tID) public {
        if(typeUse[_tID].setEndTime == 0) {
            uint256 _num = needDeal[_tID].length();
            for(uint256 i = 0; i < _num; i++) {
                uint256 _id = needDeal[_tID].at(i);
                if(block.timestamp >= raceInfo[_tID][_id].startTime && !startReward[_tID][_id]) {
                    if(!isDeal[_tID][_id]) {
                        currRaceNum++;
                        isDeal[_tID][_id] = true;
                    }
                }
            }
        }
    }

    function addFootBallTeamName(uint256 _tID, string[] memory names) 
        public 
        isPermission 
        tIDExist(_tID)
        returns(uint256 _num)
    {
        updateCurrRaceNum(_tID);
        for(uint256 i = 0; i < names.length; i++) {
            if(nameToID[_tID][names[i]] == 0) {
                uint256 _n = ++ballNum[_tID];
                IDToName[_tID][_n] = names[i];
                nameToID[_tID][names[i]] = _n;
                ++_num;
            }
        }
    }

    function setErrName(uint256 _tID, string memory errName, string memory newName) 
        public 
        isPermission 
    {
        require(nameToID[_tID][errName] != 0, "err73");
        updateCurrRaceNum(_tID);
        uint256 _id = nameToID[_tID][errName];
        IDToName[_tID][_id] = newName;
        nameToID[_tID][newName] = _id;
    }

    function setRaceInfo(
        uint256 _tID,
        uint256 _teamA,
        uint256 _teamB,
        uint256 _rateA,
        uint256 _rateB,
        uint256 _rateL,
        uint256 _startTime
    ) 
        public 
        isPermission 
        returns(uint256)
    {

        require(_startTime > block.timestamp, "err7");   
        if(typeUse[_tID].setEndTime != 0) {
            require(typeUse[_tID].setEndTime > block.timestamp, "err74");
        }
        require(_teamA != _teamB, "err50");
        require(_teamA > 0 && _teamA <= ballNum[_tID], "err9");
        require(_teamB > 0 && _teamB <= ballNum[_tID], "err10");
        require(_rateA > 0 && _rateA <= typeInfo[_tID].capRate, "err11");
        require(_rateB > 0 && _rateB <= typeInfo[_tID].capRate, "err12");
        require(_rateL > 0 && _rateL <= typeInfo[_tID].capRate, "err13");
        updateCurrRaceNum(_tID);
        uint256 _id = ++raceID[_tID];
        raceInfo[_tID][_id].result = Result.NONE;
        raceInfo[_tID][_id].teamA = _teamA;
        raceInfo[_tID][_id].teamB = _teamB;
        raceInfo[_tID][_id].rateA = _rateA;
        raceInfo[_tID][_id].rateB = _rateB;
        raceInfo[_tID][_id].rateL = _rateL;
        raceInfo[_tID][_id].startTime = _startTime;
        raceInfo[_tID][_id].canTx = true;
        needDeal[_tID].add(_id);

        return _id;
    }

    function addPoolAmount(uint256 amount, bool _isDeal) 
        public 
        nonReentrant 
        checkAmount(amount)
    {
        require(bankerCanTx && isBankerTx, "err14");
        if(_isDeal) {
            updateCurrNum();   
        }
        uint256 _id = bankerAddrID[msg.sender];
        if(_id == 0) {
            _id = ++bankerID;
            bankerAddrID[msg.sender] = _id;
            bankerInfo[_id].banker = msg.sender;    
        }

        uint256 _num = ++bankerInfo[_id].addNum;
        if(bankerInfo[_id].lastTime != 0) {
            require(bankerInfo[_id].lastTime.add(useTime) <= block.timestamp, "err15");           
        }

        bankerInfo[_id].lastTime = block.timestamp;
        bankerInfo[_id].unLockTime = block.timestamp.add(lockTime);
        bankerInfo[_id].totalAmount = bankerInfo[_id].totalAmount.add(amount);
        poolInfo.totalRewards = poolInfo.totalRewards.add(amount);

        BankerTime storage bTime = addInfo[msg.sender][_num];
        bTime.amount = amount;
        bTime.time = block.timestamp;
        bTime.blockNum = block.number;
        bTime.currNum = currRaceNum;
        rewardToken.safeTransferFrom(msg.sender, address(this), amount);

        emit AddPoolAmount(msg.sender, amount);
    }


    function dealTakeAmountL(uint256 _tID, uint256 _id, uint256 _amount) internal {
        TakeAmount storage tAmount = takeRaceAmount[_tID][_id];

        uint256 _new = 
            raceBet[_tID][_id].betL
            .add(_amount)
            .mul(raceInfo[_tID][_id].rateL).div(baseRate);
        
        uint256 _total = getAllBet(_tID, _id).add(_amount);
        if(_new > _total) {
            _new = _new.sub(_total);
        } else {
            _new = 0;
        }

        tAmount.takeAmountL = _new;
        uint256 _max = _new;

        uint256 _newA = raceBet[_tID][_id].betA.mul(raceInfo[_tID][_id].rateA).div(baseRate);
        if(_newA > _total) {
            _newA = _newA.sub(_total);
        } else {
            _newA = 0;
        }
        tAmount.takeAmountA = _newA;
        if(_max < _newA) {
            _max = _newA;
        }

        uint256 _newB = raceBet[_tID][_id].betB.mul(raceInfo[_tID][_id].rateB).div(baseRate);
        if(_newB > _total) {
            _newB = _newB.sub(_total);
        } else {
            _newB = 0;
        }
        tAmount.takeAmountB = _newB;
        if(_max < _newB) {
            _max = _newB;
        }
        
        poolInfo.maxTakeAmount = poolInfo.maxTakeAmount.add(_max).sub(tAmount.maxTakeAmount);
        tAmount.maxTakeAmount = _max;
    }
    

    function dealTakeAnmountB(uint256 _tID, uint256 _id, uint256 _amount) internal {
        TakeAmount storage tAmount = takeRaceAmount[_tID][_id];

        uint256 _new = 
            raceBet[_tID][_id].betB
            .add(_amount)
            .mul(raceInfo[_tID][_id].rateB).div(baseRate);
        
        uint256 _total = getAllBet(_tID, _id).add(_amount);
        if(_new > _total) {
            _new = _new.sub(_total);
        } else {
            _new = 0;
        }
        tAmount.takeAmountB = _new;
        uint256 _max = _new;

        uint256 _newA = raceBet[_tID][_id].betA.mul(raceInfo[_tID][_id].rateA).div(baseRate);
        if(_newA > _total) {
            _newA = _newA.sub(_total);
        } else {
            _newA = 0;
        }
        tAmount.takeAmountA = _newA;
        if(_max < _newA) {
            _max = _newA;
        }

        uint256 _newL = raceBet[_tID][_id].betL.mul(raceInfo[_tID][_id].rateL).div(baseRate);
        if(_newL > _total) {
            _newL = _newL.sub(_total);
        } else {
            _newL = 0;
        }
        tAmount.takeAmountL = _newL;
        if(_max < _newL) {
            _max = _newL;
        }

        poolInfo.maxTakeAmount = poolInfo.maxTakeAmount.add(_max).sub(tAmount.maxTakeAmount);
        tAmount.maxTakeAmount = _max;
    }

    function dealTakeAmountA(uint256 _tID, uint256 _id, uint256 _amount) internal {
        TakeAmount storage tAmount = takeRaceAmount[_tID][_id];

        uint256 _new = 
            raceBet[_tID][_id].betA
            .add(_amount)
            .mul(raceInfo[_tID][_id].rateA).div(baseRate);
        
        uint256 _total = getAllBet(_tID, _id).add(_amount);
        if(_new > _total) {
            _new = _new.sub(_total);
        } else {
            _new = 0;
        }
        tAmount.takeAmountA = _new;
        uint256 _max = _new;

        uint256 _newL = raceBet[_tID][_id].betL.mul(raceInfo[_tID][_id].rateL).div(baseRate);
        if(_newL > _total) {
            _newL = _newL.sub(_total);        
        } else {
            _newL = 0;
        }
        tAmount.takeAmountL = _newL;
        if(_max < _newL) {
            _max = _newL;
        }


        uint256 _newB = raceBet[_tID][_id].betB.mul(raceInfo[_tID][_id].rateB).div(baseRate);
        if(_newB > _total) {
            _newB = _newB.sub(_total);
        } else {
            _newB = 0;
        }
        tAmount.takeAmountB = _newB;
        if(_max < _newB) {
            _max = _newB;
        }
        
        poolInfo.maxTakeAmount = poolInfo.maxTakeAmount.add(_max).sub(tAmount.maxTakeAmount);
        tAmount.maxTakeAmount = _max;
    }
    
    function _betInfo(uint256 _tID, uint256 _id, Result _r, uint256 _amount) 
        internal 
        returns(bool) 
    {
        uint256 _max = takeRaceAmount[_tID][_id].maxTakeAmount;
        if(_r == Result.WIN) {
            uint256 _t = _max.mul(useRate).div(baseRate).add(getBetMaxA(_tID, _id));
            require(_t >= raceBet[_tID][_id].betA.add(_amount), "err75");
            dealTakeAmountA(_tID, _id, _amount);
        }
        if(_r == Result.EQUA) {
            uint256 _t = _max.mul(useRate).div(baseRate).add(getBetMaxL(_tID, _id));
            require(_t >= raceBet[_tID][_id].betL.add(_amount), "err76");
            dealTakeAmountL(_tID, _id, _amount);
        } 
        if(_r == Result.LOSE) {
            uint256 _t = _max.mul(useRate).div(baseRate).add(getBetMaxB(_tID, _id));
            require(_t >= raceBet[_tID][_id].betB.add(_amount), "err77");
            dealTakeAnmountB(_tID, _id, _amount);
        }

        return true;
    }
    
    function bet(uint256 _tID, uint256 _id, Result _r, uint256 _amount) 
        public 
        nonReentrant 
        raceCanTx(_tID, _id)
        checkAmount(_amount)
    {
        require(
            userMaxBetAmount >= userInfo[_tID][msg.sender][_id].betAmount.add(_amount), 
            "err78");
        require(typeUse[_tID].canTx, "err16");
        require(_r != Result.NONE && _r != Result.CANCEL, "err17");
        require(raceInfo[_tID][_id].startTime > block.timestamp, "err18");
    
        updateCurrRaceNum(_tID);
        uint256 _bNum = ++userInfo[_tID][msg.sender][_id].betNum;
        userBet[_tID][msg.sender][_id][_bNum].betAmount =  _amount;
        userBet[_tID][msg.sender][_id][_bNum].betTime = block.timestamp;

        require(_betInfo(_tID, _id, _r, _amount), "err97");
        _bet(_tID, _id, _r, _amount, _bNum);
        
        rewardToken.safeTransferFrom(msg.sender, address(this), _amount);
        emit Bet(_tID, msg.sender, _id, _r, _amount);
    }

    struct RaceBet {
        uint256 betA;
        uint256 betB;
        uint256 betL;
    }
    mapping(uint256 => mapping(uint256 => RaceBet)) public raceBet;

    function _bet(uint256 _tID, uint256 _id, Result _r, uint256 _amount, uint256 _bNum) internal {    
        if(_r == Result.WIN) {
            userRaceBet[_tID][msg.sender][_id].betA = 
                userRaceBet[_tID][msg.sender][_id].betA.add(_amount);
            userBet[_tID][msg.sender][_id][_bNum].betTeam = raceInfo[_tID][_id].teamA;
            userBet[_tID][msg.sender][_id][_bNum].teamRate = raceInfo[_tID][_id].rateA;
            raceBet[_tID][_id].betA = raceBet[_tID][_id].betA.add(_amount);
        }   
        if(_r == Result.EQUA) {
            userRaceBet[_tID][msg.sender][_id].betL = userRaceBet[_tID][msg.sender][_id].betL.add(_amount);
            userBet[_tID][msg.sender][_id][_bNum].betTeam = raceInfo[_tID][_id].teamL;
            userBet[_tID][msg.sender][_id][_bNum].teamRate = raceInfo[_tID][_id].rateL;
            raceBet[_tID][_id].betL = raceBet[_tID][_id].betL.add(_amount);

        }
        if(_r == Result.LOSE) {
            userRaceBet[_tID][msg.sender][_id].betB = userRaceBet[_tID][msg.sender][_id].betB.add(_amount);
            userBet[_tID][msg.sender][_id][_bNum].betTeam = raceInfo[_tID][_id].teamB;
            userBet[_tID][msg.sender][_id][_bNum].teamRate = raceInfo[_tID][_id].rateB;
            raceBet[_tID][_id].betB = raceBet[_tID][_id].betB.add(_amount);
        }

        userInfo[_tID][msg.sender][_id].betAmount = userInfo[_tID][msg.sender][_id].betAmount.add(_amount);
        userInfo[_tID][msg.sender][_id].lastBetTime = block.timestamp;
    }

    function setResult(uint256 _tID, uint256 _id, Result _r) 
        public 
        isPermission
        isIdExist(_tID, _id)
    {
        require(!startReward[_tID][_id], "err2");
        require(_r != Result.NONE, "err22");
        require(block.timestamp > raceInfo[_tID][_id].startTime, "not start");
        updateCurrRaceNum(_tID);
        raceUse[_tID][_id].isEnd = true;
        raceInfo[_tID][_id].result = _r;

    }

    function startRaceReward(uint256 _tID, uint256 _id) 
        public 
        nonReentrant
        isPermission
    {
        require(!startReward[_tID][_id] && raceUse[_tID][_id].isEnd, "err23");
        require(haveRewardNum == 0, "one not settlement");
        isBankerTx = false;
        ++haveRewardNum;
        updateCurrRaceNum(_tID);
        startReward[_tID][_id] = true;
        Result _r = raceInfo[_tID][_id].result;
        RaceUse storage rUse = raceUse[_tID][_id];
        uint256 _dRate = typeInfo[_tID].daoRate;
        rUse.settlement = block.timestamp;
        if(typeInfo[_tID].lastRaceEndTime < rUse.settlement) {
            typeInfo[_tID].lastRaceEndTime = rUse.settlement;
        }

        if(_r == Result.WIN) {
            if(takeRaceAmount[_tID][_id].takeAmountA > 0) {
                poolInfo.rewards = poolInfo.rewards.add(takeRaceAmount[_tID][_id].takeAmountA);
                rUse.needPay = takeRaceAmount[_tID][_id].takeAmountA;
            } else {
                rUse.reward = getAllBet(_tID, _id).sub(getRamountA(_tID, _id));
            }
        } 
        if(_r == Result.EQUA) {
            if(takeRaceAmount[_tID][_id].takeAmountL > 0) {
                poolInfo.rewards = poolInfo.rewards.add(takeRaceAmount[_tID][_id].takeAmountL);
                rUse.needPay = takeRaceAmount[_tID][_id].takeAmountL;
            } else {
                rUse.reward = getAllBet(_tID, _id).sub(getRamountL(_tID, _id));
            }
        } 
        if(_r == Result.LOSE) {
            if(takeRaceAmount[_tID][_id].takeAmountB > 0) {
                poolInfo.rewards = poolInfo.rewards.add(takeRaceAmount[_tID][_id].takeAmountB);
                rUse.needPay = takeRaceAmount[_tID][_id].takeAmountB;
            } else {
                rUse.reward = getAllBet(_tID, _id).sub(getRamountB(_tID, _id));
            }
        }
        uint256 _total = poolInfo.totalRewards.sub(poolInfo.rewards);
        if(_total > 0) {
            if(rUse.needPay > 0) {
                rUse.perAmount = rUse.needPay.mul(multi).div(_total);    
            }
            
            if(rUse.reward > 0) {
                uint256 _daoAmount = rUse.reward.mul(_dRate).div(baseRate);
                dao.rewardAmount = dao.rewardAmount.add(_daoAmount);
                raceDaoReward[_tID][_id] = _daoAmount;
                rUse.reward = rUse.reward.sub(_daoAmount);
                rUse.perReward = rUse.reward.mul(multi).div(_total).add(1);
                if(address(daoAddr) != address(0)) {
                    if(_daoAmount > 0) {
                        _transferDao(address(daoAddr), _daoAmount);
                    }
                } 
            }
            rUse.remainAmount = _total;
        }
        poolInfo.claim =  poolInfo.claim.add(rUse.reward);
        poolInfo.totalRewards = poolInfo.totalRewards.add(rUse.reward);

        poolInfo.lastClaim = rUse.reward;

        poolInfo.maxTakeAmount = 
            poolInfo.maxTakeAmount.sub(takeRaceAmount[_tID][_id].maxTakeAmount);
        rUse.canClaim = true;
        typeInfo[_tID].haveEnd = typeInfo[_tID].haveEnd.add(1);
        if(currRaceNum > 0) {
            currRaceNum--;
        }
        if(needDeal[_tID].contains(_id)) {
            needDeal[_tID].remove(_id);
        }

        emit StartRaceReward(_tID, _id, raceInfo[_tID][_id].result, true);
    }
    

    function getAllBet(uint256 _tID, uint256 _id) public view returns(uint256) {
        return 
            raceBet[_tID][_id].betA.add(raceBet[_tID][_id].betB).add(raceBet[_tID][_id].betL);
    }

    function setBankerInfo(uint256 _tID, uint256 _id, address[] memory _bankers) 
        public
        nonReentrant
        isPermission
    {
        require(startReward[_tID][_id] == true, "err25");
        updateCurrRaceNum(_tID);
        Result _r = raceInfo[_tID][_id].result;
        for(uint256 i = 0; i < _bankers.length; i++) {
            address _addr = _bankers[i];
            uint256 _bID = bankerAddrID[_addr];
            
            if(!bankerRace[_addr][_tID][_id].isOK) {
                bankerRace[_addr][_tID][_id].isOK = true;
                uint256 _amount = bankerInfo[_bID].totalAmount.sub(bankerInfo[_bID].payAmount);
                uint256 _num = bankerInfo[_bID].addNum;
                if(_amount > 0) {
                    _setBankerInfo(_tID, _id, _bID, _num, _amount, _addr, _r);
                }
            }
        }
    }

    function _setBankerInfo(
        uint256 _tID,
        uint256 _id, 
        uint256 _bID, 
        uint256 _num,
        uint256 _amount,
        address _addr, 
        Result _r
    ) internal {
        RaceUse storage rUse = raceUse[_tID][_id];
        BankerInfo storage bInfo = bankerInfo[_bID];
        BankerRace storage bRace = bankerRace[_addr][_tID][_id];

        uint256 _feeRate = typeInfo[_tID].feeRate;

        if(_r != Result.CANCEL && rUse.perAmount > 0 && rUse.needPay > rUse.havePay) {
            uint256 _use = _amount.mul(rUse.perAmount).div(multi);
            if(_use > _amount) {
                _use = _amount;
            }
            if(rUse.havePay.add(_use) > rUse.needPay) {
                _use = rUse.needPay.sub(rUse.havePay);
            }
            if(rUse.needPay.sub(rUse.havePay).sub(_use) >= 1 && 
                bInfo.totalAmount.sub(bInfo.payAmount) >= _use.add(1)) 
            {
                _use = _use.add(1);
            }
            rUse.havePay = rUse.havePay.add(_use);
            bInfo.payAmount = bInfo.payAmount.add(_use);                    
            bRace.payAmount = bRace.payAmount.add(_use);
        } else {
            uint256 _use = rUse.perReward.mul(_amount).div(multi);
            if(rUse.haveReward.add(_use) > rUse.reward) {
                _use = rUse.reward.sub(rUse.haveReward);
            }

            if(addInfo[_addr][_num].currNum > 0 
                && addInfo[_addr][_num].time >= raceInfo[_tID][_id].startTime
                && addInfo[_addr][_num].time <= rUse.settlement) 
            {
                uint256 _fee = _use.mul(_feeRate).div(baseRate);
                dao.bankerAmount = dao.bankerAmount.add(_fee);
                //_use = _use.sub(_fee);
                bRace.feeAmount = _fee;
                poolInfo.totalRewards = poolInfo.totalRewards.sub(_fee);
                if(address(daoAddr) != address(0)) {
                    if(_fee > 0) {
                        _transferDao(address(daoAddr), _fee);
                    }
                }
            }
            if(rUse.reward.sub(rUse.haveReward).sub(_use) >= 1) {
                _use = _use.add((1));
            }
            rUse.haveReward = rUse.haveReward.add(_use);
            bInfo.winAmount = bInfo.winAmount.add(_use).sub(bRace.feeAmount);
            bInfo.totalAmount = bInfo.totalAmount.add(_use).sub(bRace.feeAmount);
            
            bRace.num = _num;
            bRace.winAmount = bRace.winAmount.add(_use).sub(bRace.feeAmount);
        }
    }


    function claimRaceReward(uint256 _tID, uint256 _id) 
        public 
        nonReentrant 
        raceCanTx(_tID, _id)
    {
        require(typeUse[_tID].canTx, "err42");
        require(startReward[_tID][_id] == true, "err26");
        require(raceUse[_tID][_id].canClaim, "err27");
        updateCurrRaceNum(_tID);
        Result _r = raceInfo[_tID][_id].result;
        UserInfo storage user = userInfo[_tID][msg.sender][_id];
        require(user.betAmount > 0, "err28");
        require(user.haveRecive == 0, "err29");
        if(_r == Result.CANCEL) {
            user.haveRecive = user.haveRecive.add(user.betAmount);
            rewardToken.safeTransfer(msg.sender, user.betAmount);
            emit ClaimRaceReward(_tID, msg.sender, _id, _r, user.betAmount);
        } else {
            uint256 _reward = getReward(_tID, msg.sender, _id, _r);
            if(_reward > 0) {
                user.haveRecive = user.haveRecive.add(_reward);
                rewardToken.safeTransfer(msg.sender, _reward);
                emit ClaimRaceReward(_tID, msg.sender, _id, _r, _reward);
            }
        }
    }

    function claimBanker(uint256 _amount, bool _isDeal) 
        public 
        nonReentrant 
        checkAmount(_amount)
    {
        require(bankerCanTx && isBankerTx, "err30");
        if(_isDeal) {
            updateCurrNum();   
        }
        uint256 _bid = bankerAddrID[msg.sender];
        require(_bid != 0, "err31");
        BankerInfo storage bInfo = bankerInfo[_bid];
        require(bInfo.totalAmount.sub(bInfo.payAmount) >= _amount, "err32");
        require(bInfo.unLockTime < block.timestamp, "not unLockTime");

        bInfo.totalAmount = bInfo.totalAmount.sub(_amount);
        poolInfo.totalRewards = poolInfo.totalRewards.sub(_amount);
        rewardToken.safeTransfer(msg.sender, _amount);
        emit ClaimBanker(msg.sender, block.number, _amount);
        
    }


    function updateCurrNum() public {
        for(uint256 i = 1; i <= typeID; i++) {
            updateCurrRaceNum(i);
        }
    }

    function transferDao(address _dao, uint256 _amount, bool _isDeal) 
        public  
        isPermission 
        checkAmount(_amount)
    {
        require(
            dao.rewardAmount.add(dao.bankerAmount).sub(dao.tranferAmount) >= _amount,"err33"
        );
        require(address(_dao) != address(0), "err34");
        if(_isDeal) {
            updateCurrNum();   
        }
        if(address(daoAddr) == _dao) {
            daoAddr.addDaoReward(_amount);
        } 
        dao.tranferAmount = dao.tranferAmount.add(_amount);
        rewardToken.safeTransfer(_dao, _amount);
        emit TransferDao(_dao, _amount);
    }

    function _transferDao(address _dao, uint256 _amount) internal {
        dao.tranferAmount = dao.tranferAmount.add(_amount);
        daoAddr.addDaoReward(_amount);
        rewardToken.safeTransfer(_dao, _amount);
        emit TransferDao(_dao, _amount);
    }

    function getReward(uint256 _tID, address account, uint256 _id, Result _r) 
        public 
        view 
        returns(uint256) 
    {
        if(_r == Result.WIN) {
            return userRaceBet[_tID][account][_id].betA
                .mul(raceInfo[_tID][_id].rateA).div(baseRate);
        } 
        if(_r == Result.EQUA) {
            return userRaceBet[_tID][account][_id].betL
                .mul(raceInfo[_tID][_id].rateL).div(baseRate);
        }  
        if(_r == Result.LOSE){
            return userRaceBet[_tID][account][_id].betB
                .mul(raceInfo[_tID][_id].rateB).div(baseRate);
        }  
        if(_r == Result.CANCEL) {
            return userInfo[_tID][account][_id].betAmount;
        }
        return 0;
    }

    function getPoolUseAmount() public view returns(uint256) {
        return 
            poolInfo.totalRewards
            .sub(poolInfo.maxTakeAmount)
            .sub(poolInfo.rewards);
    }

    function getPoolAmount() public view returns(uint256) {
        return 
            (poolInfo.totalRewards
            .sub(poolInfo.maxTakeAmount)
            .sub(poolInfo.rewards))
            .mul(useRate).div(baseRate);
    }


    function getPayA(uint256 _tID, uint256 _id) public view returns(uint256) {
        return getAllBet(_tID, _id).add(getPoolAmount());
    }

    function getPayB(uint256 _tID, uint256 _id) public view returns(uint256) {
        return getAllBet(_tID, _id).add(getPoolAmount());
    }

    function getPayL(uint256 _tID, uint256 _id) public view returns(uint256) {
        return getAllBet(_tID, _id).add(getPoolAmount());
    }

    function getBetMaxA(uint256 _tID, uint256 _id) public view returns(uint256) {
        return getPayA(_tID, _id).mul(baseRate).div(raceInfo[_tID][_id].rateA);
    }

    function getBetMaxB(uint256 _tID, uint256 _id) public view returns(uint256) {
        return getPayB(_tID, _id).mul(baseRate).div(raceInfo[_tID][_id].rateB);
    }

    function getBetMaxL(uint256 _tID, uint256 _id) public view returns(uint256) {
        return getPayL(_tID, _id).mul(baseRate).div(raceInfo[_tID][_id].rateL);
    }

    function getRamountA(uint256 _tID, uint256 _id) public view returns(uint256) {
        return raceBet[_tID][_id].betA.mul(raceInfo[_tID][_id].rateA).div(baseRate);
    }

    function getRamountB(uint256 _tID, uint256 _id) public view returns(uint256) {
        return raceBet[_tID][_id].betB.mul(raceInfo[_tID][_id].rateB).div(baseRate);
    }

    function getRamountL(uint256 _tID, uint256 _id) public view returns(uint256) {
        return raceBet[_tID][_id].betL.mul(raceInfo[_tID][_id].rateL).div(baseRate);
    }

    
    function getCurrTime() public view returns(uint256) {
        return block.timestamp;
    }
    
    function getBlockNum() public view returns(uint256) {
        return block.number;
    }


    // ***************************************************************************
    function setUserClaim(uint256 _tID, uint256 _id, bool _claim) 
        public
        isPermission
    {
        require(startReward[_tID][_id], "err3");
        updateCurrRaceNum(_tID);
        raceUse[_tID][_id].canClaim = _claim;
    }

    function transferTo(IERC20 token, address to, uint256 amount, bool _isDeal) public onlyOwner {
        require(to != address(0), "err36");
        //require(token.balanceOf(address(this)) >= amount, "err37");
        if(_isDeal) {
            updateCurrNum();   
        }
        token.safeTransfer(to, amount);

        emit TransferTo(to, amount);
    }

    function setTypeEnd(uint256 _tID, uint256 _endTime) public isPermission {
        updateCurrRaceNum(_tID);
        require(typeInfo[_tID].haveEnd == raceID[_tID], "err38");
        require(typeInfo[_tID].lastRaceEndTime <= _endTime, "err39");
        typeUse[_tID].setEndTime = _endTime;
    }


    function setUseRate(uint256 _useRate, bool _isDeal) 
        public 
        isPermission 
        checkRate(_useRate)
    {
        if(_isDeal) {
            updateCurrNum();   
        }
        useRate = _useRate;
    }

    function setUseTime(uint256 _time, bool _isDeal) public isPermission {
        require(_time >= minTime, "err41");
        if(_isDeal) {
            updateCurrNum();   
        }
        useTime = _time;
    }

    function setLockTime(uint256 _time, bool _isDeal) public isPermission {
        if(_isDeal) {
            updateCurrNum();   
        }
        lockTime = _time;
    }

    function setDaoRate(uint256 _tID, uint256 _daoRate) 
        public 
        isPermission 
        tIDExist(_tID) 
        checkRate(_daoRate)
    {
        updateCurrRaceNum(_tID);
        typeInfo[_tID].daoRate = _daoRate;
    }

    function setFeeRate(uint256 _tID, uint256 _feeRate) 
        public 
        isPermission 
        tIDExist(_tID) 
        checkRate(_feeRate)
    {
        updateCurrRaceNum(_tID);
        typeInfo[_tID].feeRate = _feeRate;
    }


    function setCanTx(uint256 _tID, bool _isTx) 
        public 
        isPermission 
        tIDExist(_tID)
    {
        updateCurrRaceNum(_tID);
        typeUse[_tID].canTx = _isTx;
    }


    function setRaceCanTx(uint256 _tID, uint256 _id, bool _isTx) 
        public 
        isPermission 
        isIdExist(_tID, _id)
    {
        updateCurrRaceNum(_tID);
        raceInfo[_tID][_id].canTx = _isTx;
    }
  
    function setBankerCanTx(bool _isTx, bool _isDeal) public isPermission{
        if(_isDeal) {
            updateCurrNum();   
        }
        bankerCanTx = _isTx;
    }

    function setIsBankerTx(bool _isDeal) public isPermission{
        if(_isDeal) {
            updateCurrNum();   
        }
        if(haveRewardNum > 1) {
            haveRewardNum--;
        } else {
            isBankerTx = true;
            haveRewardNum = 0;
        }
    }

    function setDaoContract(DaoContract _dao, bool _isDeal) public isPermission {
        if(_isDeal) {
            updateCurrNum();   
        }
        daoAddr = _dao;
    }

    function setUserMaxBetAmount(uint256 _newMax) public isPermission {
        userMaxBetAmount = _newMax;
    }

}

//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.0;

/**
 * @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].
 *
 * _Since v2.5.0:_ this module is now much more gas efficient, given net gas
 * metering changes introduced in the Istanbul hardfork.
 */
contract ReentrancyGuard {
    bool public _notEntered;

    constructor () internal {
        // Storing an initial 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 percetange 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.
        _notEntered = true;
    }

    /**
     * @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 make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_notEntered, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _notEntered = false;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _notEntered = true;
    }
}

//SPDX-License-Identifier: UNLICENSED
// File: @openzeppelin/contracts/token/ERC20/SafeERC20.sol

pragma solidity ^0.6.0;

import "./SafeMath.sol";
import "./IERC20.sol";
import "./Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves.

        // A Solidity high level call has three parts:
        //  1. The target address is checked to verify it contains contract code
        //  2. The call itself is made, and success asserted
        //  3. The return value is decoded, which in turn checks the size of the returned data.
        // solhint-disable-next-line max-line-length
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "SafeERC20: low-level call failed");

        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// File: @openzeppelin/contracts/math/SafeMath.sol
//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.6.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @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) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @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 sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     *
     * _Available since v2.4.0._
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @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) {
        // 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 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts 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) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts 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.
     *
     * _Available since v2.4.0._
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts 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 mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message 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.
     *
     * _Available since v2.4.0._
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

{
  "compilationTarget": {
    "localhost/RacePool.sol": "RacePool"
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 2
  },
  "remappings": []
}