contract BabyQOM is Context, IERC20, IERC20Metadata {
    using SafeMath for uint256;

    IDividendDistributor public dividendDistributor;
    uint256 distributorGas = 500000;

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;
    
    string private _name;
    string private _symbol;


    address DEAD = 0x000000000000000000000000000000000000dEaD;
    address ZERO = 0x0000000000000000000000000000000000000000;

    bool public restrictWhales = true;

    mapping (address => bool) public isFeeExempt;
    mapping (address => bool) public isLimitExempt;
    mapping (address => bool) public isDividendExempt;

    uint256 public reflectionFee;
    uint256 public lpFee;
    uint256 public devFee;

    uint256 public totalFee;

    IUniswapV2Router02 public router;
    address public pair;
    address public tokenOwner;
    address payable public devWallet;

    bool inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = true;

    uint256 public _walletMax;
    uint256 public swapThreshold;
    
    constructor(uint256 initialSupply, address reflectionToken, address routerAddress) {
        tokenOwner = msg.sender;
        _name = "BabyQOM";
        _symbol = "BQOM";
        _totalSupply += initialSupply;
        _balances[tokenOwner] += initialSupply;        

        _walletMax = initialSupply / 100 * 2;
        swapThreshold = initialSupply / 100 * 1;

        router = IUniswapV2Router02(routerAddress);
        pair = IUniswapV2Factory(router.factory()).createPair(router.WETH(), address(this));

        _allowances[address(this)][address(router)] = type(uint256).max;

        dividendDistributor = new DividendDistributor(routerAddress, reflectionToken, address(this));

        isFeeExempt[address(this)] = true;
        isFeeExempt[tokenOwner] = true;

        isLimitExempt[address(this)] = true;
        isLimitExempt[address(dividendDistributor)] = true;
        isLimitExempt[pair] = true;
        isLimitExempt[DEAD] = true;
        isLimitExempt[ZERO] = true; 

        isDividendExempt[pair] = true;
        isDividendExempt[address(this)] = true;
        isDividendExempt[DEAD] = true;
        isDividendExempt[ZERO] = true; 

        reflectionFee = 6;
        lpFee = 2;
        devFee = 4;

        totalFee = devFee.add(lpFee).add(reflectionFee);

        devWallet = payable(tokenOwner);

    }

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

    modifier onlyOwner() {
        require(tokenOwner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    

    //Owner functions
    function changeFees(uint256 initialReflectionFee, uint256 initialLpFee, uint256 initialDevFee) external onlyOwner {

        reflectionFee = initialReflectionFee;
        lpFee = initialLpFee;
        devFee = initialDevFee;

        totalFee = devFee.add(lpFee).add(reflectionFee);
        require(totalFee <= 12, "Too high fee");
    } 

    function changeWalletLimit(uint256 newLimit) external onlyOwner {
        _walletMax  = newLimit;
    }

    function changeRestrictWhales(bool newValue) external onlyOwner {
        restrictWhales = newValue;
    }

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

    function setDevWallet(address payable newDevWallet) external onlyOwner {
        devWallet = payable(newDevWallet);
    }

    function setOwnerWallet(address payable newOwnerWallet) external onlyOwner {
        tokenOwner = newOwnerWallet;
    }

    function changeSwapBackSettings(bool enableSwapBack, uint256 newSwapBackLimit) external onlyOwner {
        swapAndLiquifyEnabled  = enableSwapBack;
        swapThreshold = newSwapBackLimit;
    }

    function setDistributionCriteria(uint256 newMinPeriod, uint256 newMinDistribution) external onlyOwner {
        dividendDistributor.setDistributionCriteria(newMinPeriod, newMinDistribution);        
    }

    function getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 9;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     *
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, _allowances[owner][spender] + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = _allowances[owner][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    function _transfer(address sender, address recipient, uint256 amount) internal returns (bool) {

        if(inSwapAndLiquify){ return _basicTransfer(sender, recipient, amount); }


        if(!isLimitExempt[recipient] && restrictWhales)
        {
            require(_balances[recipient].add(amount) <= _walletMax, "wallet");
        }

        if(msg.sender != pair && !inSwapAndLiquify && swapAndLiquifyEnabled && _balances[address(this)] >= swapThreshold){ swapBack(); }

        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
        
        uint256 finalAmount = !isFeeExempt[sender] && !isFeeExempt[recipient] ? takeFee(sender, amount) : amount;
        _balances[recipient] = _balances[recipient].add(finalAmount);

        // Dividend tracker
        if(!isDividendExempt[sender]) {
            try dividendDistributor.setShare(sender, _balances[sender]) {} catch {}
        }

        if(!isDividendExempt[recipient]) {
            try dividendDistributor.setShare(recipient, _balances[recipient]) {} catch {} 
        }

        try dividendDistributor.process(distributorGas) {} catch {}


        emit Transfer(sender, recipient, finalAmount);
        return true;
    }    

    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
        return true;
    }    

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */



    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        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);
    }

    /**
     * @dev Spend `amount` form the allowance of `owner` toward `spender`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    function takeFee(address sender, uint256 amount) internal returns (uint256) {
        
        uint256 feeAmount = amount.mul(totalFee).div(100);

        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);

        return amount.sub(feeAmount);
    }

    function swapBack() internal lockTheSwap {
        
        uint256 tokensToLiquify = _balances[address(this)];
        uint256 amountToLiquify = tokensToLiquify.mul(lpFee).div(totalFee).div(2);
        uint256 amountToSwap = tokensToLiquify.sub(amountToLiquify);

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();

        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            amountToSwap,
            0,
            path,
            address(this),
            block.timestamp
        );

        uint256 amountETH = address(this).balance;
        uint256 devBalance = amountETH.mul(devFee).div(totalFee);

        uint256 amountEthLiquidity = amountETH.mul(lpFee).div(totalFee).div(2);
        uint256 amountEthReflection = amountETH.sub(devBalance).sub(amountEthLiquidity);


        if(amountETH > 0){
            devWallet.transfer(devBalance);
            try dividendDistributor.deposit{value: amountEthReflection}() {} catch {}

            if(amountToLiquify > 0){
                router.addLiquidityETH{value: amountEthLiquidity}(
                    address(this),
                    amountToLiquify,
                    0,
                    0,
                    DEAD,
                    block.timestamp
                );
            }
        }
    
    }

    receive() external payable { }

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

/**
 * @dev Returns the name of the token.
 */