contract MultiChainCapital is Context, IERC20, Ownable {
  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 _isExcludedFromFee;

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

  uint256 private constant MAX = ~uint256(0);
  uint256 private _tTotal = 4206900000000 * 10**9;
  uint256 private _rTotal = (MAX - (MAX % _tTotal));
  uint256 private _tFeeTotal;

  string private _name = 'TotalTest';
  string private _symbol = 'TTT';
  uint8 private _decimals = 9;

  uint256 private _taxFee = 5;
  uint256 private _teamFee = 5;
  uint256 private _previousTaxFee = _taxFee;
  uint256 private _previousTeamFee = _teamFee;

  address payable public _MCCWalletAddress;
  address payable public _marketingWalletAddress;

  IUniswapV2Router02 public immutable uniswapV2Router;
  address public immutable uniswapV2Pair;
  mapping(address => bool) private _isUniswapPair;

  bool inSwap = false;
  bool public swapEnabled = true;

  uint8 _sellTaxMultiplier = 1;

  uint256 private _maxTxAmount = 300000000000000e9;
  // We will set a minimum amount of tokens to be swaped => 5M
  uint256 private _numOfTokensToExchangeForTeam = 5 * 10**3 * 10**9;

  struct AirdropReceiver {
    address addy;
    uint256 amount;
  }

  event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
  event SwapEnabledUpdated(bool enabled);

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

  constructor(
    address payable MCCWalletAddress,
    address payable marketingWalletAddress
  ) {
    _MCCWalletAddress = MCCWalletAddress;
    _marketingWalletAddress = marketingWalletAddress;
    _rOwned[_msgSender()] = _rTotal;

    IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
      0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
    ); // UniswapV2 for Ethereum network
    // Create a uniswap pair for this new token
    uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(
      address(this),
      _uniswapV2Router.WETH()
    );

    // set the rest of the contract variables
    uniswapV2Router = _uniswapV2Router;

    // Exclude owner and this contract from fee
    _isExcludedFromFee[owner()] = true;
    _isExcludedFromFee[address(this)] = true;

    emit Transfer(address(0), _msgSender(), _tTotal);
  }

  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 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 setExcludeFromFee(address account, bool excluded)
    external
    onlyOwner
  {
    _isExcludedFromFee[account] = excluded;
  }

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

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

  function reflectionFromToken(uint256 tAmount, bool deductTransferFee)
    public
    view
    returns (uint256)
  {
    require(tAmount <= _tTotal, 'Amount must be less than supply');
    if (!deductTransferFee) {
      (uint256 rAmount, , , , , ) = _getValues(tAmount, false);
      return rAmount;
    } else {
      (, uint256 rTransferAmount, , , , ) = _getValues(tAmount, false);
      return rTransferAmount;
    }
  }

  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 excludeAccount(address account) external onlyOwner {
    require(
      account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D,
      'We can not exclude Uniswap router.'
    );
    require(!_isExcluded[account], 'Account is already excluded');
    if (_rOwned[account] > 0) {
      _tOwned[account] = tokenFromReflection(_rOwned[account]);
    }
    _isExcluded[account] = true;
    _excluded.push(account);
  }

  function includeAccount(address account) external onlyOwner {
    require(_isExcluded[account], 'Account is already excluded');
    for (uint256 i = 0; i < _excluded.length; i++) {
      if (_excluded[i] == account) {
        _excluded[i] = _excluded[_excluded.length - 1];
        _tOwned[account] = 0;
        _isExcluded[account] = false;
        _excluded.pop();
        break;
      }
    }
  }

  function removeAllFee() private {
    if (_taxFee == 0 && _teamFee == 0) return;

    _previousTaxFee = _taxFee;
    _previousTeamFee = _teamFee;

    _taxFee = 0;
    _teamFee = 0;
  }

  function restoreAllFee() private {
    _taxFee = _previousTaxFee;
    _teamFee = _previousTeamFee;
  }

  function isExcludedFromFee(address account) public view returns (bool) {
    return _isExcludedFromFee[account];
  }

  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 _transfer(
    address sender,
    address recipient,
    uint256 amount
  ) private {
    require(sender != address(0), 'ERC20: transfer from the zero address');
    require(recipient != address(0), 'ERC20: transfer to the zero address');
    require(amount > 0, 'Transfer amount must be greater than zero');

    if (sender != owner() && recipient != owner())
      require(
        amount <= _maxTxAmount,
        'Transfer amount exceeds the maxTxAmount.'
      );

    // is the token balance of this contract address over the min number of
    // tokens that we need to initiate a swap?
    // also, don't get caught in a circular team event.
    // also, don't swap if sender is uniswap pair.
    uint256 contractTokenBalance = balanceOf(address(this));

    if (contractTokenBalance >= _maxTxAmount) {
      contractTokenBalance = _maxTxAmount;
    }

    bool overMinTokenBalance = contractTokenBalance >=
      _numOfTokensToExchangeForTeam;
    if (
      !inSwap &&
      swapEnabled &&
      overMinTokenBalance &&
      (recipient == uniswapV2Pair || _isUniswapPair[recipient])
    ) {
      // We need to swap the current tokens to ETH and send to the team wallet
      swapTokensForEth(contractTokenBalance);

      uint256 contractETHBalance = address(this).balance;
      if (contractETHBalance > 0) {
        sendETHToTeam(address(this).balance);
      }
    }

    // indicates if fee should be deducted from transfer
    bool takeFee = false;

    // take fee only on swaps
    if (
      (sender == uniswapV2Pair ||
        recipient == uniswapV2Pair ||
        _isUniswapPair[recipient] ||
        _isUniswapPair[sender]) &&
      !(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient])
    ) {
      takeFee = true;
    }

    //transfer amount, it will take tax and team fee
    _tokenTransfer(sender, recipient, amount, takeFee);
  }

  function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
    // generate the uniswap pair path of token -> weth
    address[] memory path = new address[](2);
    path[0] = address(this);
    path[1] = uniswapV2Router.WETH();

    _approve(address(this), address(uniswapV2Router), tokenAmount);

    // make the swap
    uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
      tokenAmount,
      0, // accept any amount of ETH
      path,
      address(this),
      block.timestamp
    );
  }

  function sendETHToTeam(uint256 amount) private {
    _MCCWalletAddress.call{ value: amount.div(2) }('');
    _marketingWalletAddress.call{ value: amount.div(2) }('');
  }

  // We are exposing these functions to be able to manual swap and send
  // in case the token is highly valued and 5M becomes too much
  function manualSwap() external onlyOwner {
    uint256 contractBalance = balanceOf(address(this));
    swapTokensForEth(contractBalance);
  }

  function manualSend() external onlyOwner {
    uint256 contractETHBalance = address(this).balance;
    sendETHToTeam(contractETHBalance);
  }

  function setSwapEnabled(bool enabled) external onlyOwner {
    swapEnabled = enabled;
  }

  function _tokenTransfer(
    address sender,
    address recipient,
    uint256 amount,
    bool takeFee
  ) private {
    if (!takeFee) removeAllFee();

    if (_isExcluded[sender] && !_isExcluded[recipient]) {
      _transferFromExcluded(sender, recipient, amount);
    } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
      _transferToExcluded(sender, recipient, amount);
    } else if (_isExcluded[sender] && _isExcluded[recipient]) {
      _transferBothExcluded(sender, recipient, amount);
    } else {
      _transferStandard(sender, recipient, amount);
    }

    if (!takeFee) restoreAllFee();
  }

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

  function _takeTeam(uint256 tTeam) private {
    uint256 currentRate = _getRate();
    uint256 rTeam = tTeam.mul(currentRate);
    _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
    if (_isExcluded[address(this)])
      _tOwned[address(this)] = _tOwned[address(this)].add(tTeam);
  }

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

  //to recieve ETH from uniswapV2Router when swaping
  receive() external payable {}

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

  function _getTValues(
    uint256 tAmount,
    uint256 taxFee,
    uint256 teamFee,
    bool isSelling
  )
    private
    view
    returns (
      uint256,
      uint256,
      uint256
    )
  {
    uint256 finalTax = isSelling ? taxFee.mul(_sellTaxMultiplier) : taxFee;
    uint256 finalTeam = isSelling ? teamFee.mul(_sellTaxMultiplier) : teamFee;

    uint256 tFee = tAmount.mul(finalTax).div(100);
    uint256 tTeam = tAmount.mul(finalTeam).div(100);
    uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
    return (tTransferAmount, tFee, tTeam);
  }

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

  function _getTaxFee() private view returns (uint256) {
    return _taxFee;
  }

  function _getMaxTxAmount() private view returns (uint256) {
    return _maxTxAmount;
  }

  function _isSelling(address recipient) private view returns (bool) {
    return recipient == uniswapV2Pair || _isUniswapPair[recipient];
  }

  function _getETHBalance() public view returns (uint256 balance) {
    return address(this).balance;
  }

  function _setTaxFee(uint256 taxFee) external onlyOwner {
    require(taxFee <= 5, 'taxFee should be in 0 - 5');
    _taxFee = taxFee;
  }

  function _setTeamFee(uint256 teamFee) external onlyOwner {
    require(teamFee <= 5, 'teamFee should be in 0 - 5');
    _teamFee = teamFee;
  }

  function _setSellTaxMultiplier(uint8 mult) external onlyOwner {
    require(mult >= 1 && mult <= 3, 'multiplier should be in 1 - 3');
    _sellTaxMultiplier = mult;
  }

  function _setMCCWallet(address payable MCCWalletAddress) external onlyOwner {
    _MCCWalletAddress = MCCWalletAddress;
  }

  function _setMarketingWallet(address payable marketingWalletAddress)
    external
    onlyOwner
  {
    _marketingWalletAddress = marketingWalletAddress;
  }

  function _setMaxTxAmount(uint256 maxTxAmount) external onlyOwner {
    require(
      maxTxAmount >= 100000000000000e9,
      'maxTxAmount should be greater than 100000000000000e9'
    );
    _maxTxAmount = maxTxAmount;
  }

  function isUniswapPair(address _pair) external view returns (bool) {
    if (_pair == uniswapV2Pair) return true;
    return _isUniswapPair[_pair];
  }

  function addUniswapPair(address _pair) external onlyOwner {
    _isUniswapPair[_pair] = true;
  }

  function removeUniswapPair(address _pair) external onlyOwner {
    _isUniswapPair[_pair] = false;
  }

  function Airdrop(AirdropReceiver[] memory recipients) external onlyOwner {
    for (uint256 _i = 0; _i < recipients.length; _i++) {
      AirdropReceiver memory _user = recipients[_i];
      transferFrom(msg.sender, _user.addy, _user.amount);
    }
  }
}
// Contract implementation
function manualSwap() external onlyOwner {
    uint256 contractBalance = balanceOf(address(this));
    swapTokensForEth(contractBalance);
  }
// We are exposing these functions to be able to manual swap and send
// in case the token is highly valued and 5M becomes too much