/*

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AUTOMATED TRADING ON UNISWAP

https://unibot.cash

Unidex Bot is an application for convenient trading on UNISWAP. 
Limit orders, stop orders, trailer stop and everything else that is available on traditional exchanges.

*/
pragma solidity ^0.5.1;

library SafeMath {

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        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;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

contract Ownable{
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () internal {
        _owner = msg.sender;
        emit OwnershipTransferred(address(0), msg.sender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    function isOwner() public view returns (bool) {
        return msg.sender == _owner;
    }

    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract ERC20 is Ownable{
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    string public constant name = "unibot.cash";
    string public constant symbol = "UNDB";
    uint public constant decimals = 18;
    uint constant total = 1000;
    uint256 private _totalSupply;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor() public {
        _mint(msg.sender, total * 10**decimals);
    }

    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    function _mint(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: mint to the zero address");

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    function _approve(address owner, address spender, uint256 amount) internal {
        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);
    }

}


contract Crowdsale {
    address payable owner;
    address me = address(this);
    uint sat = 1e18;
    
    // *** Config ***
    uint startFst = 1599753600;
    uint periodFst = 1 days;
    uint periodScd = 1 days;
    uint percentSell = 35;
    uint256 priceFst = 4; // 0.4 ETH
    uint256 priceScd = 5; // 0.5 ETH
    // --- Config ---

    uint startScd =  startFst + periodFst;
    uint stopSell = startScd + periodScd;
    ERC20 token = new ERC20();
    
    constructor() public {
        owner = msg.sender;
        token.transfer(owner, token.totalSupply() / 100 * (100 - percentSell));
    }

    function() external payable {
        require(startFst < now && now < stopSell, "Period error");
        uint amount = msg.value / getPrice() * 10;
        require(amount <= token.balanceOf(address(this)), "Infucient token balance in ICO");
        token.transfer(msg.sender, amount);
    }
    
    function manualGetETH() public payable {
        require(msg.sender == owner, "You is not owner");
        owner.transfer(address(this).balance);
    }
    
    function getLeftTokens() public {
        require(msg.sender == owner, "You is not owner");
        require(now > stopSell, "ICO is not closed");
        token.transfer(owner, token.balanceOf(address(this)));
    }
    
    function getPrice() public view returns (uint) {
        return now < startScd ? priceFst : priceScd;
    }
    
    // Utils
    function getStartICO() public view returns (uint) {
        return startFst - now;
    }
    function getStartScd() public view returns (uint) {
        return startScd - now;
    }
    function getStopSell() public view returns(uint){
        return stopSell - now;
    }
    function tokenAddress() public view returns (address){
        return address(token);
    }
    function ICO_deposit() public view returns(uint){
        return token.balanceOf(address(this));
    }
    function myBalance() public view returns(uint){
        return token.balanceOf(msg.sender);
    }
}