pragma solidity ^ 0.4 .6;

contract CloseIfBug {

        address public JohanNygren;
        bool public bugDiscovered; // closes everything but sell()

        function CloseIfBug() {
                bugDiscovered = false;
        }

        modifier onlyJohan {
                if (msg.sender != JohanNygren) throw;
                _;
        }

        modifier isOpen {
                if (bugDiscovered != false) throw;
                _;
        }

        function closeCampaign() onlyJohan {
                bugDiscovered = true;
        }

}



contract RES is CloseIfBug {

        /* Public variables of the token */
        string public name;
        string public symbol;
        uint8 public decimals;

        uint public totalSupply;

        /* This creates an array with all balances */
        mapping(address => uint256) public balanceOf;

        /* This generates a public event on the blockchain that will notify clients */
        event Transfer(address indexed from, address indexed to, uint256 value);

        /* Bought or sold */

        event Bought(address from, uint amount);
        event Sold(address from, uint amount);

        /* Initializes contract with name, symbol and decimals */

        function RES() {
                name = "RES";
                symbol = "RES";
                decimals = 18;
        }

        function buy() isOpen public payable {
                balanceOf[msg.sender] += msg.value;
                totalSupply += msg.value;
                Bought(msg.sender, msg.value);
        }

        function sell(uint256 _value) public {
                if (balanceOf[msg.sender] < _value) throw;
                balanceOf[msg.sender] -= _value;

                if (!msg.sender.send(_value)) throw;

                totalSupply -= _value;
                Sold(msg.sender, _value);

        }

}

contract SwarmRedistribution is CloseIfBug, RES {

        struct dividendPathway {
                address from;
                uint amount;
                uint timeStamp;
        }

        mapping(address => dividendPathway[]) public dividendPathways;

        mapping(address => bool) public isHuman;

        mapping(address => uint256) public totalBasicIncome;

        uint taxRate;
        uint exchangeRate;

        address[] humans;
        mapping(address => bool) inHumans;

        event Swarm(address indexed leaf, address indexed node, uint256 share);

        function SwarmRedistribution() {

                /* Tax-rate in parts per thousand */
                taxRate = 20;

                /* Exchange-rate in parts per thousand */
                exchangeRate = 0;

        }

        /* Send coins */
        function transfer(address _to, uint256 _value) isOpen {
                /* reject transaction to self to prevent dividend pathway loops*/
                if (_to == msg.sender) throw;

                /* if the sender doenst have enough balance then stop */
                if (balanceOf[msg.sender] < _value) throw;
                if (balanceOf[_to] + _value < balanceOf[_to]) throw;

                /* Calculate tax */
                uint256 taxCollected = _value * taxRate / 1000;
                uint256 sentAmount;

                /* Create the dividend pathway */
                dividendPathways[_to].push(dividendPathway({
                        from: msg.sender,
                        amount: _value,
                        timeStamp: now
                }));

                iterateThroughSwarm(_to, now, taxCollected);

                if (humans.length > 0) {
                        doSwarm(_to, taxCollected);
                        sentAmount = _value;
                } else sentAmount = _value - taxCollected; /* Return tax */


                /* Add and subtract new balances */

                balanceOf[msg.sender] -= sentAmount;
                balanceOf[_to] += _value - taxCollected;

                /* Notifiy anyone listening that this transfer took place */
                Transfer(msg.sender, _to, sentAmount);
        }


        function iterateThroughSwarm(address _node, uint _timeStamp, uint _taxCollected) internal {
                for (uint i = 0; i < dividendPathways[_node].length; i++) {

                        uint timeStamp = dividendPathways[_node][i].timeStamp;
                        if (timeStamp <= _timeStamp) {

                                address node = dividendPathways[_node][i].from;

                                if (
                                        isHuman[node] == true &&
                                        inHumans[node] == false
                                ) {
                                        humans.push(node);
                                        inHumans[node] = true;
                                }

                                if (dividendPathways[_node][i].amount - _taxCollected > 0) {
                                        dividendPathways[_node][i].amount -= _taxCollected;
                                } else removeDividendPathway(_node, i);

                                iterateThroughSwarm(node, timeStamp, _taxCollected);
                        }
                }
        }

        function doSwarm(address _leaf, uint256 _taxCollected) internal {

                uint256 share = _taxCollected / humans.length;

                for (uint i = 0; i < humans.length; i++) {

                        balanceOf[humans[i]] += share;
                        totalBasicIncome[humans[i]] += share;

                        inHumans[humans[i]] = false;

                        /* Notifiy anyone listening that this swarm took place */
                        Swarm(_leaf, humans[i], share);
                }
                delete humans;
        }

        function removeDividendPathway(address node, uint index) internal {
                delete dividendPathways[node][index];
                for (uint i = index; i < dividendPathways[node].length - 1; i++) {
                        dividendPathways[node][i] = dividendPathways[node][i + 1];
                }
                dividendPathways[node].length--;
        }

}

contract Resilience is CloseIfBug, RES, SwarmRedistribution {
        
        function Resilience() {
        }
        
        function setBeneficiary() {
            if(JohanNygren != 0) throw;
            JohanNygren = msg.sender;
            isHuman[JohanNygren] = true;
        }


}