// Vulnerability label: clean
pragma solidity ^0.4.24;
//Spielleys Profit Allocation Share Module
//In an effort to crowdfund myself to go fulltime dapp development,
//I hereby created this contract to sell +/- 90% of future games dev fees 
// Future P3D contract games made will have a P3D masternode setup for the uint
// builder. Dev fee will consist of 1% of P3D divs gained in those contracts.
// contract will mint shares/tokens as you buy them
// Shares connot be destroyed, only traded.
// use function buyshares to buy Shares
// use function fetchdivs to get divs outstanding
// read dividendsOwing(your addres) to see how many divs you have outstanding
// Thank you for playing Spielleys contract creations.
// speilley is not liable for any contract bugs known and unknown.
//

// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
library SafeMath {
    function add(uint a, uint b) internal pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function sub(uint a, uint b) internal pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
    function mul(uint a, uint b) internal pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
    function div(uint a, uint b) internal pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
}

// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
    address public owner;
    address public newOwner;

    event OwnershipTransferred(address indexed _from, address indexed _to);

    constructor() public {
        owner = 0x0B0eFad4aE088a88fFDC50BCe5Fb63c6936b9220;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address _newOwner) public onlyOwner {
        newOwner = _newOwner;
    }
    function acceptOwnership() public {
        require(msg.sender == newOwner);
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
        newOwner = address(0);
    }
}
// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
// ----------------------------------------------------------------------------
contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}


// ----------------------------------------------------------------------------
// Contract function to receive approval and execute function in one call
//
// Borrowed from MiniMeToken
// ----------------------------------------------------------------------------
contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}

// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and a
// fixed supply
// ----------------------------------------------------------------------------
contract FixedSupplyToken is ERC20Interface, Owned {
    using SafeMath for uint;

    string public symbol;
    string public  name;
    uint8 public decimals;
    uint _totalSupply;

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


    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    constructor() public {
        symbol = "SPASM";
        name = "Spielleys Profit Allocation Share Module";
        decimals = 0;
        _totalSupply = 1;
        balances[owner] = _totalSupply;
        emit Transfer(address(0),owner, _totalSupply);
        
    }


    // ------------------------------------------------------------------------
    // Total supply
    // ------------------------------------------------------------------------
    function totalSupply() public view returns (uint) {
        return _totalSupply.sub(balances[address(0)]);
    }


    // ------------------------------------------------------------------------
    // Get the token balance for account `tokenOwner`
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) public view returns (uint balance) {
        return balances[tokenOwner];
    }


    // ------------------------------------------------------------------------
    // Transfer the balance from token owner's account to `to` account
    // - Owner's account must have sufficient balance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transfer(address to, uint tokens) updateAccount(to) updateAccount(msg.sender) public returns (bool success) {
        balances[msg.sender] = balances[msg.sender].sub(tokens);
        balances[to] = balances[to].add(tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for `spender` to transferFrom(...) `tokens`
    // from the token owner's account
    //
    // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
    // recommends that there are no checks for the approval double-spend attack
    // as this should be implemented in user interfaces 
    // ------------------------------------------------------------------------
    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Transfer `tokens` from the `from` account to the `to` account
    // 
    // The calling account must already have sufficient tokens approve(...)-d
    // for spending from the `from` account and
    // - From account must have sufficient balance to transfer
    // - Spender must have sufficient allowance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transferFrom(address from, address to, uint tokens)updateAccount(to) updateAccount(from) public returns (bool success) {
        balances[from] = balances[from].sub(tokens);
        allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
        balances[to] = balances[to].add(tokens);
        emit Transfer(from, to, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Returns the amount of tokens approved by the owner that can be
    // transferred to the spender's account
    // ------------------------------------------------------------------------
    function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for `spender` to transferFrom(...) `tokens`
    // from the token owner's account. The `spender` contract function
    // `receiveApproval(...)` is then executed
    // ------------------------------------------------------------------------
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }





    // ------------------------------------------------------------------------
    // Owner can transfer out any accidentally sent ERC20 tokens
    // ------------------------------------------------------------------------
    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
        return ERC20Interface(tokenAddress).transfer(owner, tokens);
    }

// divfunctions
//divsection
uint256 public pointMultiplier = 10e18;
struct Account {
  uint balance;
  uint lastDividendPoints;
}
mapping(address=>Account) accounts;
uint public ethtotalSupply;
uint public totalDividendPoints;
uint public unclaimedDividends;

function dividendsOwing(address account) public view returns(uint256) {
  uint256 newDividendPoints = totalDividendPoints.sub(accounts[account].lastDividendPoints);
  return (balances[account] * newDividendPoints) / pointMultiplier;
}
modifier updateAccount(address account) {
  uint256 owing = dividendsOwing(account);
  if(owing > 0) {
    unclaimedDividends = unclaimedDividends.sub(owing);
    
    account.transfer(owing);
  }
  accounts[account].lastDividendPoints = totalDividendPoints;
  _;
}
function () external payable{disburse();}
function fetchdivs() public updateAccount(msg.sender){}
function disburse() public  payable {
    uint256 amount = msg.value;
    
  totalDividendPoints = totalDividendPoints.add(amount.mul(pointMultiplier).div(_totalSupply));
  //ethtotalSupply = ethtotalSupply.add(amount);
 unclaimedDividends = unclaimedDividends.add(amount);
}
function buyshares() public updateAccount(msg.sender) updateAccount(owner)  payable{
    uint256 amount = msg.value;
    address sender = msg.sender;
    uint256 sup = _totalSupply;//totalSupply
    require(amount >= 10 finney);
    uint256 size = amount.div( 10 finney);
    balances[owner] = balances[owner].add(size);
     emit Transfer(0,owner, size);
    sup = sup.add(size);
     size = amount.div( 1 finney);
    balances[msg.sender] = balances[sender].add(size);
    emit Transfer(0,sender, size);
     _totalSupply =  sup.add(size);
     owner.transfer(amount);
}
}