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Enter the Solidity Contract Code

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

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

contract TaxableTeamToken is IERC20, Context, Ownable {
    event TeamFinanceTokenMint(address owner);

using SafeMath for uint256;
    using Address for address;

mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;

mapping (address => bool) private _isExcluded;
    address[] private _excluded;

uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal;
    uint256 private _rTotal;
    uint256 private _tFeeTotal;

string private _name;
    string private _symbol;
    uint8 private _decimals;
    uint256 private _feesPercentage;

modifier checkIsAddressValid(address ethAddress)
    {
        require(ethAddress != address(0), "[Validation] invalid address");
        require(ethAddress == address(ethAddress), "[Validation] invalid address");
        _;
    }
    
    modifier checkIsFeesValid(uint256 fees)
    {
        require(fees > 0, "[Validation] fees should be greater than zero.");
        require(fees < 21, "[Validation] fees should be less than 21.");
        _;
    }

constructor(
        string memory name,
        string memory symbol,
        uint8 decimals,
        uint256 supply,
        uint256 fees,
        address owner,
        address feeWallet
    ) public checkIsFeesValid(fees) checkIsAddressValid(owner) checkIsAddressValid(feeWallet) {
        
        require(decimals >=8 && decimals <= 18, "[Validation] Not valid decimals");
        require(supply > 0, "[Validation] inital supply should be greater than 0");
        require(owner != feeWallet, "[Validation] fee wallet and owner wallet cannot be same.");
        
        _name = name;
        _symbol = symbol;
        _decimals = decimals;
        _feesPercentage = fees;
        
        _tTotal = supply;
        _rTotal = (MAX - (MAX % _tTotal));
        
        _rOwned[owner] = _rTotal;
        
        emit Transfer(address(0), owner, _tTotal);

emit TeamFinanceTokenMint(owner);
    }

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

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

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

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

function balanceOf(address account) public view override returns (uint256) {
        if (_isExcluded[account]) return _tOwned[account];
        return tokenFromReflection(_rOwned[account]);
    }

function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), 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(_msgSender(), spender, amount);
        return true;
    }

function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

function isExcluded(address account) public view returns (bool) {
        return _isExcluded[account];
    }

function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }

function reflect(uint256 tAmount) public {
        address sender = _msgSender();
        require(!_isExcluded[sender], "Excluded addresses cannot call this function");
        (uint256 rAmount,,,,) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }

function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
        require(rAmount <= _rTotal, "Amount must be less than total reflections");
        uint256 currentRate =  _getRate();
        return rAmount.div(currentRate);
    }

function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

_allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

function _transferStandard(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);       
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);           
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);   
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);        
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

function _reflectFee(uint256 rFee, uint256 tFee) private {
        _rTotal = _rTotal.sub(rFee);
        _tFeeTotal = _tFeeTotal.add(tFee);
    }

function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) {
        (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount);
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate);
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee);
    }

function _getTValues(uint256 tAmount) private view returns (uint256, uint256) {
        uint256 tFee = tAmount.mul(_feesPercentage).div(100);
        uint256 tTransferAmount = tAmount.sub(tFee);
        return (tTransferAmount, tFee);
    }

function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee);
        return (rAmount, rTransferAmount, rFee);
    }

function _getRate() private view returns(uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }

function _getCurrentSupply() private view returns(uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;      
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
            rSupply = rSupply.sub(_rOwned[_excluded[i]]);
            tSupply = tSupply.sub(_tOwned[_excluded[i]]);
        }
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }
}

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