pragma solidity ^0.5.11;



library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // Gas optimization: this is cheaper than asserting 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
    if (a == 0) {
      return 0;
    }

    c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    // uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return a / b;
  }

  /**
  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

contract Ownable {
  address public owner;
  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
  /**
  * @dev The Ownable constructor sets the original `owner` of the contract to the sender
  * account.
  */
  constructor() public {
    owner = msg.sender;
  }
  /**
  * @dev Throws if called by any account other than the owner.
  */
  modifier onlyOwner() {
    require(msg.sender == owner);
    _;
  }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    emit OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

}

contract PayFbit is Ownable {
  using SafeMath for uint256;

  event Transfer(address indexed from,address indexed to,uint256 _tokenId);
  event Approval(address indexed owner,address indexed approved,uint256 _tokenId);



  string public  name = "PayFbit Token";
  string public  symbol = "PFBT";
  uint8 public decimals = 5;

  uint256 public totalSupply = 310000000 * 10 ** uint256(decimals);
  
  uint  constant EndDate1     = 1609479000;  // 1 jan 2021
  uint  constant EndDate2     = 1641015000;  // 1 jan 2022

  mapping(address => uint256) balances;
  mapping(address => mapping (address => uint256)) allowed;

    uint   amount1              =  217000000 * (10 ** uint256(decimals));   // 217,000,000 - (217M) 
    uint   amount2           =  31000000  * (10 ** uint256(decimals));   // 31,000,000 - (31M)
    uint   amount3            =  9300000  * (10 ** uint256(decimals));   // 9,300,000 - (9.3M)
    uint   amount4            =  31000000  * (10 ** uint256(decimals));   // 31,000,000 - (31M)    
    uint   amount5            =  12400000  * (10 ** uint256(decimals));   // 12,400,000 - (12.4M)
    uint   amount6   =  9300000 * (10 ** uint256(decimals));   //  9,300,000 - ( 9.3M )
    


    

    //Deposit address
    address public addressPublicPrivateSaleBounty       = 0xE693614c6025C1C8DD77Df381bFAa3e52a686FC4;   // 1 jan 2021
    address public addressCoFoundersManagingPartners            = 0x8F21BafA9b44b1de4Ec35013d3a846AA2FC861b1; // 1 jan 2022 
    address public addressDevelopmentTeam            = 0x2841e11548Fe3A0c6B34aBAe2446Ae8a715149A7;  // 1 jan 2022
    address public addressICOAdvisors            = 0xAb503F71145AE3A769AE5084eEB1ae6693836D7e;  // 1 jan 2022
    address public addressForFutureDevelopment            = 0xBc6E90612eE2b5608911534c25FDc8a473Ee32fc;  // 1 jan 2022
    address public addressLegalAdvisor   = 0x3e569d848e188FeFE8E0c3a51d115BD1F1DD1Bfb; // 1 jan 2022
     

    /*
    * Contract Constructor
    */

    constructor() public {
                     // balances[msg.sender] = totalSupply;
                    
                     balances[addressPublicPrivateSaleBounty]     = amount1;
                     balances[addressCoFoundersManagingPartners]          = amount2;
                     balances[addressDevelopmentTeam]          = amount3;   
                     balances[addressICOAdvisors]          = amount4;
                     balances[addressForFutureDevelopment]          = amount5;
                     balances[addressLegalAdvisor] = amount6;
            }
    
    
  


  function balanceOf(address _owner) public view returns (uint256 balance) {
    return balances[_owner];
  }


//   constructor() public {
//     balances[msg.sender] = totalSupply;
//   }


  function approve(address _spender, uint256 _amount) public returns (bool success) {
    allowed[msg.sender][_spender] = _amount;
    emit   Approval(msg.sender, _spender, _amount);
    return true;
  }

  function allowance(address _owner, address _spender ) public view returns (uint256) {
    return allowed[_owner][_spender];
  }

  function getNow() public view returns (uint) {
        return now;
    }
    
  function transfer(address _to, uint256 _value) public returns (bool) {
    //For 1 jan 2021
    if (msg.sender == addressPublicPrivateSaleBounty){
        require(now >= EndDate1);
    }
    //For 1 jan 2022
    if ((msg.sender == addressCoFoundersManagingPartners || msg.sender == addressDevelopmentTeam || msg.sender == addressICOAdvisors || msg.sender == addressForFutureDevelopment || msg.sender == addressLegalAdvisor)){
        require(now >= EndDate2);
    }
    require(_value <= balances[msg.sender]);
    require(_to != address(0));

    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit Transfer(msg.sender, _to, _value);
    return true;
  }

  function transferFrom(address _from, address _to, uint256 _value) public returns (bool)
  {
    //For 1 jan 2021
    if (msg.sender == addressPublicPrivateSaleBounty){
        require(now >= EndDate1);
    }
    //For 1 jan 2022
     if ((msg.sender == addressCoFoundersManagingPartners || msg.sender == addressDevelopmentTeam || msg.sender == addressICOAdvisors || msg.sender == addressForFutureDevelopment || msg.sender == addressLegalAdvisor)){
        require(now >= EndDate2);
    }
    require(_value <= balances[_from]);
    require(_value <= allowed[_from][msg.sender]);
    require(_to != address(0));

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    emit Transfer(_from, _to, _value);
    return true;
  }
  
  function burn(uint256 amount) external {
    _burn(msg.sender, amount);
  }
  function _burn(address account, uint256 amount) internal {
     //For 1 jan 2021
    if (msg.sender == addressPublicPrivateSaleBounty){
        require(now >= EndDate1);
    }
    //For 1 jan 2022
     if ((msg.sender == addressCoFoundersManagingPartners || msg.sender == addressDevelopmentTeam || msg.sender == addressICOAdvisors || msg.sender == addressForFutureDevelopment || msg.sender == addressLegalAdvisor)){
        require(now >= EndDate2);
    }
    require(amount != 0);
    require(amount <= balances[account]);
    // totalSupply = totalSupply.sub(amount);
    balances[account] = balances[account].sub(amount);
    emit Transfer(account, address(0), amount);
  }
  
  function increaseApproval(address _spender, uint256 _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = (
      allowed[msg.sender][_spender].add(_addedValue));
      emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
      return true;
    }

    function decreaseApproval(address _spender,uint256 _subtractedValue) public returns (bool)
    {
      uint256 oldValue = allowed[msg.sender][_spender];
      if (_subtractedValue >= oldValue) {
        allowed[msg.sender][_spender] = 0;
        } else {
          allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
        }
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
      }

    }

{
  "compilationTarget": {
    "PayFbit.sol": "PayFbit"
  },
  "evmVersion": "petersburg",
  "libraries": {},
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}