pragma solidity ^0.4.0;

/**
 * @title Multi Sender, support ETH and ERC20 Token
*/

library SafeMath {
  function mul(uint a, uint b) internal pure  returns (uint) {
    uint c = a * b;
    require(a == 0 || c / a == b);
    return c;
  }
  function div(uint a, uint b) internal pure returns (uint) {
    require(b > 0);
    uint c = a / b;
    require(a == b * c + a % b);
    return c;
  }
  function sub(uint a, uint b) internal pure returns (uint) {
    require(b <= a);
    return a - b;
  }
  function add(uint a, uint b) internal pure returns (uint) {
    uint c = a + b;
    require(c >= a);
    return c;
  }
  function max64(uint64 a, uint64 b) internal  pure returns (uint64) {
    return a >= b ? a : b;
  }
  function min64(uint64 a, uint64 b) internal  pure returns (uint64) {
    return a < b ? a : b;
  }
  function max256(uint256 a, uint256 b) internal  pure returns (uint256) {
    return a >= b ? a : b;
  }
  function min256(uint256 a, uint256 b) internal  pure returns (uint256) {
    return a < b ? a : b;
  }
}

/**
 * @title Multi Sender, support ETH and ERC20 Tokens
 * @dev To Use this Dapp: http://multisender.phizhub.com
*/

contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) public constant returns (uint);
  function transfer(address to, uint value) public;
  event Transfer(address indexed from, address indexed to, uint value);
}

contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) public constant returns (uint);
  function transferFrom(address from, address to, uint value) public;
  function approve(address spender, uint value) public;
  event Approval(address indexed owner, address indexed spender, uint value);
}

/**
 * @title Multi Sender, support ETH and ERC20 Tokens
 * @dev To Use this Dapp: http://multisender.phizhub.com
*/

contract BasicToken is ERC20Basic {

  using SafeMath for uint;

  mapping(address => uint) balances;

  function transfer(address _to, uint _value) public{
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit Transfer(msg.sender, _to, _value);
  }

  function balanceOf(address _owner) public constant returns (uint balance) {
    return balances[_owner];
  }
}

/**
 * @title Multi Sender, support ETH and ERC20 Tokens
 * @dev To Use this Dapp: http://multisender.phizhub.com
*/

contract StandardToken is BasicToken, ERC20 {
  mapping (address => mapping (address => uint)) allowed;

  function transferFrom(address _from, address _to, uint _value) public {
    balances[_to] = balances[_to].add(_value);
    balances[_from] = balances[_from].sub(_value);
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    emit Transfer(_from, _to, _value);
  }

  function approve(address _spender, uint _value) public{
    require((_value == 0) || (allowed[msg.sender][_spender] == 0)) ;
    allowed[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
  }

  function allowance(address _owner, address _spender) public constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }
}

/**
 * @title Multi Sender, support ETH and ERC20 Tokens
 * @dev To Use this Dapp: http://multisender.phizhub.com
*/

contract Ownable {
    address public owner;

    constructor() public{
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }
    function transferOwnership(address newOwner) onlyOwner public{
        if (newOwner != address(0)) {
            owner = newOwner;
        }
    }
}

/**
 * @title Multi Sender, support ETH and ERC20 Tokens
*/

contract PhxGo is Ownable{

    using SafeMath for uint;


    event LogTokenMultiSent(address token,uint256 total);
    event LogGetToken(address token, address receiver, uint256 balance);
    address public receiverAddress;
    uint public txFee = 0.01 ether;
    uint public VIPFee = 1 ether;

    /* VIP List */
    mapping(address => bool) public vipList;

    /*
  *  get balance
  */
  function getBalance(address _tokenAddress) onlyOwner public {
      address _receiverAddress = getReceiverAddress();
      if(_tokenAddress == address(0)){
          require(_receiverAddress.send(address(this).balance));
          return;
      }
      StandardToken token = StandardToken(_tokenAddress);
      uint256 balance = token.balanceOf(this);
      token.transfer(_receiverAddress, balance);
      emit LogGetToken(_tokenAddress,_receiverAddress,balance);
  }


   /*
  *  Register VIP
  */
  function registerVIP() payable public {
      require(msg.value >= VIPFee);
      address _receiverAddress = getReceiverAddress();
      require(_receiverAddress.send(msg.value));
      vipList[msg.sender] = true;
  }

  /*
  *  VIP list
  */
  function addToVIPList(address[] _vipList) onlyOwner public {
    for (uint i =0;i<_vipList.length;i++){
      vipList[_vipList[i]] = true;
    }
  }

  /*
    * Remove address from VIP List by Owner
  */
  function removeFromVIPList(address[] _vipList) onlyOwner public {
    for (uint i =0;i<_vipList.length;i++){
      vipList[_vipList[i]] = false;
    }
   }

    /*
        * Check isVIP
    */
    function isVIP(address _addr) public view returns (bool) {
        return _addr == owner || vipList[_addr];
    }

    /*
        * set receiver address
    */
    function setReceiverAddress(address _addr) onlyOwner public {
        require(_addr != address(0));
        receiverAddress = _addr;
    }


    /*
        * get receiver address
    */
    function getReceiverAddress() public view returns  (address){
        if(receiverAddress == address(0)){
            return owner;
        }

        return receiverAddress;
    }

     /*
        * set vip fee
    */
    function setVIPFee(uint _fee) onlyOwner public {
        VIPFee = _fee;
    }

    /*
        * set tx fee
    */
    function setTxFee(uint _fee) onlyOwner public {
        txFee = _fee;
    }


   function ethSendSameValue(address[] _to, uint _value) internal {

        uint sendAmount = _to.length.sub(1).mul(_value);
        uint remainingValue = msg.value;

        bool vip = isVIP(msg.sender);
        if(vip){
            require(remainingValue >= sendAmount);
        }else{
            require(remainingValue >= sendAmount.add(txFee)) ;
        }
		require(_to.length <= 255);

		for (uint8 i = 1; i < _to.length; i++) {
			remainingValue = remainingValue.sub(_value);
			require(_to[i].send(_value));
		}

	    emit LogTokenMultiSent(0x000000000000000000000000000000000000bEEF,msg.value);
    }

    function ethSendDifferentValue(address[] _to, uint[] _value) internal {

        uint sendAmount = _value[0];
		uint remainingValue = msg.value;

	    bool vip = isVIP(msg.sender);
        if(vip){
            require(remainingValue >= sendAmount);
        }else{
            require(remainingValue >= sendAmount.add(txFee)) ;
        }

		require(_to.length == _value.length);
		require(_to.length <= 255);

		for (uint8 i = 1; i < _to.length; i++) {
			remainingValue = remainingValue.sub(_value[i]);
			require(_to[i].send(_value[i]));
		}
	    emit LogTokenMultiSent(0x000000000000000000000000000000000000bEEF,msg.value);

    }

    function coinSendSameValue(address _tokenAddress, address[] _to, uint _value)  internal {

		uint sendValue = msg.value;
	    bool vip = isVIP(msg.sender);
        if(!vip){
		    require(sendValue >= txFee);
        }
		require(_to.length <= 255);
		
		address from = msg.sender;
		uint256 sendAmount = _to.length.sub(1).mul(_value);

        StandardToken token = StandardToken(_tokenAddress);		
		for (uint8 i = 1; i < _to.length; i++) {
			token.transferFrom(from, _to[i], _value);
		}

	    emit LogTokenMultiSent(_tokenAddress,sendAmount);

	}

	function coinSendDifferentValue(address _tokenAddress, address[] _to, uint[] _value)  internal  {
		uint sendValue = msg.value;
	    bool vip = isVIP(msg.sender);
        if(!vip){
		    require(sendValue >= txFee);
        }

		require(_to.length == _value.length);
		require(_to.length <= 255);

        uint256 sendAmount = _value[0];
        StandardToken token = StandardToken(_tokenAddress);
        
		for (uint8 i = 1; i < _to.length; i++) {
			token.transferFrom(msg.sender, _to[i], _value[i]);
		}
        emit LogTokenMultiSent(_tokenAddress,sendAmount);

	}

    /*
        Send ether with the same value by a explicit call method
    */

    function sendEth(address[] _to, uint _value) payable public {
		ethSendSameValue(_to,_value);
	}

    /*
        Send ether with the different value by a explicit call method
    */
    function multisend(address[] _to, uint[] _value) payable public {
		 ethSendDifferentValue(_to,_value);
	}

	/*
        Send ether with the different value by a implicit call method
    */

	function mutiSendETHWithDifferentValue(address[] _to, uint[] _value) payable public {
        ethSendDifferentValue(_to,_value);
	}

	/*
        Send ether with the same value by a implicit call method
    */

    function mutiSendETHWithSameValue(address[] _to, uint _value) payable public {
		ethSendSameValue(_to,_value);
	}


    /*
        Send coin with the same value by a implicit call method
    */

	function mutiSendCoinWithSameValue(address _tokenAddress, address[] _to, uint _value)  payable public {
	    coinSendSameValue(_tokenAddress, _to, _value);
	}

    /*
        Send coin with the different value by a implicit call method, this method can save some fee.
    */
	function mutiSendCoinWithDifferentValue(address _tokenAddress, address[] _to, uint[] _value) payable public {
	    coinSendDifferentValue(_tokenAddress, _to, _value);
	}

    /*
        Send coin with the different value by a explicit call method
    */
    function multisendToken(address _tokenAddress, address[] _to, uint[] _value) payable public {
	    coinSendDifferentValue(_tokenAddress, _to, _value);
    }
    /*
        Send coin with the same value by a explicit call method
    */
    function drop(address _tokenAddress, address[] _to, uint _value)  payable public {
		coinSendSameValue(_tokenAddress, _to, _value);
	}
}