contract WisePlatSale is Ownable {
  using SafeMath for uint256;

  // The token being offered
  WisePlat public token;

  // start and end block where investments are allowed (both inclusive)
  uint256 public constant startTimestamp	= 1509274800;		//Pre-ICO start						2017/10/29 @ 11:00:00 (UTC)
  uint256 public constant middleTimestamp	= 1511607601;		//Pre-ICO finish and ICO start		2017/11/25 @ 11:00:01 (UTC)
  uint256 public constant endTimestamp		= 1514764799;		//ICO finish						2017/12/31 @ 23:59:59 (UTC)

  // address where funds are collected
  address public constant devWallet 		= 0x00d6F1eA4238e8d9f1C33B7500CB89EF3e91190c;
  address public constant proWallet 		= 0x6501BDA688e8AC6C9cD96dc2DFBd6bDF3e886C05;
  address public constant bountyWallet 		= 0x354FFa86F138883b880C282000B5005E867E8eE4;
  address public constant remainderWallet	= 0x656C64D5C8BADe2a56A564B12706eE89bbe486EA;
  address public constant fundsWallet		= 0x06D49e8aA90b1413A641D69c6B8AC154f5c9FE92;
 
  // how many token units a buyer gets per wei
  uint256 public rate						= 10;
  uint256 public constant ratePreICO		= 20;	//on Pre-ICO it is 20 WISE for 1 ETH
  uint256 public constant rateICO			= 15;	//on ICO it is 15 WISE for 1 ETH
  
  // amount of raised money in wei
  uint256 public weiRaised;

  // minimum contribution to participate in token offer
  uint256 public constant minContribution 		= 0.1 ether;
  uint256 public constant minContribution_mBTC 	= 10;
  uint256 public rateBTCxETH 					= 17;

  // WISE tokens
  uint256 public constant tokensTotal		=	 10000000 * 1e18;		//WISE Total tokens				10,000,000.00
  uint256 public constant tokensCrowdsale	=	  7000000 * 1e18;		//WISE tokens for Crowdsale		 7,000,000.00
  uint256 public constant tokensDevelopers  =	  1900000 * 1e18;		//WISE tokens for Developers	 1,900,000.00
  uint256 public constant tokensPromotion	=	  1000000 * 1e18;		//WISE tokens for Promotion		 1,000,000.00
  uint256 public constant tokensBounty      = 	   100000 * 1e18;		//WISE tokens for Bounty		   100,000.00
  uint256 public tokensRemainder;  
  
  event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
  event TokenClaim4BTC(address indexed purchaser_evt, address indexed beneficiary_evt, uint256 value_evt, uint256 amount_evt, uint256 btc_evt, uint256 rateBTCxETH_evt);
  event SaleClosed();

  function WisePlatSale() {
    token = new WisePlat();
	token.mint(devWallet, tokensDevelopers);
	token.mint(proWallet, tokensPromotion);
	token.mint(bountyWallet, tokensBounty);
	token.setbountyWallet(bountyWallet);		//allow transfer for bountyWallet
    require(startTimestamp >= now);
    require(endTimestamp >= startTimestamp);
  }

  // check if valid purchase
  modifier validPurchase {
    require(now >= startTimestamp);
    require(now <= endTimestamp);
    require(msg.value >= minContribution);
    require(tokensTotal > token.totalSupply());
    _;
  }
  // check if valid claim for BTC
  modifier validPurchase4BTC {
    require(now >= startTimestamp);
    require(now <= endTimestamp);
    require(tokensTotal > token.totalSupply());
    _;
  }

  // @return true if crowdsale event has ended
  function hasEnded() public constant returns (bool) {
    bool timeLimitReached = now > endTimestamp;
    bool allOffered = tokensTotal <= token.totalSupply();
    return timeLimitReached || allOffered;
  }

  // low level token purchase function
  function buyTokens(address beneficiary) payable validPurchase {
    require(beneficiary != 0x0);

    uint256 weiAmount = msg.value;

    // calculate token amount to be created
	if (now < middleTimestamp) {rate = ratePreICO;} else {rate = rateICO;}
    uint256 tokens = weiAmount.mul(rate);
    
	require(token.totalSupply().add(tokens) <= tokensTotal);
	
    // update state
    weiRaised = weiRaised.add(weiAmount);
    
    token.mint(beneficiary, tokens);
    TokenPurchase(msg.sender, beneficiary, weiAmount, tokens);
    fundsWallet.transfer(msg.value);	//transfer funds to fundsWallet
  }
  
  //claim tokens buyed for mBTC
  function claimTokens4mBTC(address beneficiary, uint256 mBTC) validPurchase4BTC public onlyOwner {
    require(beneficiary != 0x0);
	require(mBTC >= minContribution_mBTC);

	//uint256 _BTC = mBTC.div(1000);			//convert mBTC	to BTC
	//uint256 _ETH = _BTC.mul(rateBTCxETH);		//convert BTC	to ETH
    //uint256 weiAmount = _ETH * 1e18;			//convert ETH	to wei
	uint256 weiAmount = mBTC.mul(rateBTCxETH) * 1e15;	//all convert in one line mBTC->BTC->ETH->wei

    // calculate token amount to be created
	if (now < middleTimestamp) {rate = ratePreICO;} else {rate = rateICO;}
    uint256 tokens = weiAmount.mul(rate);
    
	require(token.totalSupply().add(tokens) <= tokensTotal);
	
    // update state
    weiRaised = weiRaised.add(weiAmount);
    
    token.mint(beneficiary, tokens);
    TokenClaim4BTC(msg.sender, beneficiary, weiAmount, tokens, mBTC, rateBTCxETH);
    //fundsWallet.transfer(msg.value);	//transfer funds to fundsWallet	- already should be transfered to BTC wallet
  }

  // to enable transfer
  function startTransfers() public onlyOwner {
	token.startTransfer();
  }
  
  // to stop transfer
  function stopTransfers() public onlyOwner {
	token.stopTransfer();
  }
  
  // to correct exchange rate ETH for BTC
  function correctExchangeRateBTCxETH(uint256 _rateBTCxETH) public onlyOwner {
	require(_rateBTCxETH != 0);
	rateBTCxETH = _rateBTCxETH;
  }
  
  // finish mining coins and transfer ownership of WISE token to owner
  function finishMinting() public onlyOwner {
    require(hasEnded());
    uint issuedTokenSupply = token.totalSupply();			
	tokensRemainder = tokensTotal.sub(issuedTokenSupply);
	if (tokensRemainder > 0) {token.mint(remainderWallet, tokensRemainder);}
    token.finishMinting();
    token.transferOwnership(owner);
    SaleClosed();
  }

  // fallback function can be used to buy tokens
  function () payable {
    buyTokens(msg.sender);
  }
  
  /**
  * @dev Reclaim all ERC20Basic compatible tokens
  * @param tokenAddr address The address of the token contract
  */
  function reclaimToken(address tokenAddr) external onlyOwner {
	require(!isTokenOfferedToken(tokenAddr));
    ERC20Basic tokenInst = ERC20Basic(tokenAddr);
    uint256 balance = tokenInst.balanceOf(this);
    tokenInst.transfer(msg.sender, balance);
  }
  function isTokenOfferedToken(address tokenAddr) returns(bool) {
        return token == tokenAddr;
  }
 
}
function startTransfers() public onlyOwner {
oken.startTransfer();
}

// to enable transfer