Topic: [ANN] Uther – Make Ethereum Better, based on Ethereum - page 24. (Read 44975 times)

contract Foundation {

uint8 public maxDelegators;
uint8 public totalDelegators;
    address public founder;
uint public debatingDays;
    uint public numBudgets;
    Budget[] public budgets;
Delegator[] public delegators;

   struct Delegator {
    address addr;
    uint amount;
    bytes32 bitcointalkId;
  }

struct Budget {
        address recipient;
        uint amount;
        bytes32 data;
        string description;
        uint creationDate;
uint confirmDate;
uint executeDays;
        uint8 createdBy; //delegator id;
State  state;
        bytes votes; // byte0: vote of delegator 0
        //mapping (address => uint8) voted;
    }

    /*
Created : member create a budget
Active: a member pro or con the bugdet within debatingDays( default =10 days)
Vetoed: over half of members against the budget, so budget was vetoed
Passed: over half pro the budget, passed th budget
Pending: after the recipient of the budget confirm the budget
Success: after the recipient has finished the job, over half of members agree a payment
Failed: recipient didnt finished the work in setting time
*/
enum State { Created, Active, Vetoed, Passed, Pending, Success, Failed }

    event BudgetAdded(uint budgetID, address recipient, uint amount, bytes32 data, string description);
    event BudgetVoted(uint budgetID, address voter, byte position);
    event BudgetTallied(uint budgetID, uint8 reult, State state);
    event BudgetConfirmed(uint budgetID, address recipient, State state);
    event BudgetTicked(uint budgetID, address delegator, byte position);
    event BudgetPaid(uint budgetID, uint8 tickDelegatorNum, uint amount);

    struct Vote {
        uint8 position;
        address voter;
    }

    function Foundation(uint8 _maxDelegators, uint _debatingDays, bytes32 _bitcointalkId) {
        founder = msg.sender; 
        maxDelegators = _maxDelegators;// || 5;
        debatingDays = _debatingDays * 1 days;// || 10 days;
numBudgets = 0;
totalDelegators =0;
addDelegator(msg.sender, _bitcointalkId);
    }

/* in the beginning, Creator adds the delegator
in the future, user will select delegators
*/
function addDelegator(address _addr, bytes32 _bitcointalkId) returns (uint8 )
{
if ( msg.sender == founder && totalDelegators <= maxDelegators && totalDelegators >0) {
bool found = false;
for (uint i = 0; i < totalDelegators; ++i) {
if (delegators[i].addr == _addr) {
found =true;
break;
}
            }
if (!found) {
delegators.push(Delegator(_addr,_addr.balance,_bitcointalkId));
totalDelegators++;
}
}

if ( _addr == founder && totalDelegators ==0) {
delegators.push(Delegator(_addr,_addr.balance,_bitcointalkId));
totalDelegators++;
}

return totalDelegators;
}

function getDelegator(uint8 _delegatorId) returns (address)
{
address addr =msg.sender;
if ( _delegatorId < totalDelegators) {
addr = delegators[_delegatorId].addr;
}
return addr;
}

    modifier onlyDelegator()
    {
        bool founded =false;
for (uint8 i = 0; i < delegators.length; ++i) {
if (msg.sender == delegators[i].addr) {
founded = true;
break;
}
        }               

if (!founded) throw;
_
    }

    function getDelegatorId(address _addr) internal returns (uint8)
    {
        uint8 delegatorId = maxDelegators;
        for (uint8 i = 0; i < delegators.length; ++i) {
if (_addr == delegators[i].addr) {
    delegatorId = i;
    return delegatorId;
}
        }
    }

function newBudget(address _recipient, uint _amount, bytes32 _data, string _description, uint _executeDays)
onlyDelegator returns (uint )
    {   
            uint budgetID = budgets.length;
            //bytes memory v ;
            //v[0] =0x0;
budgets.push(Budget({recipient: _recipient, amount: _amount, data: _data, description: _description, creationDate: now, state: State.Created, executeDays: _executeDays * 1 days,confirmDate: 0, createdBy: 0, votes: '' }));
//budgets.push(Budget({recipient: _recipient, amount: _amount, data: _data, description: _description, creationDate: now, state: State.Created, executeDays: _executeDays,confirmDate: 0, createdBy: 0, votes: v }));
            numBudgets = budgetID+1;
            BudgetAdded(budgetID, _recipient, _amount, _data, _description);
            return budgetID;
    }

    /* 0x01= con , 0x02 =pro */       
function voteBudget(uint _budgetID, byte _position)
onlyDelegator returns (uint voteID)
{
        Budget b = budgets[_budgetID];
        uint8 delegatorId;
if ( (_position ==1 || _position ==2) && (b.state == State.Active || b.state == State.Created ) ) {
            delegatorId = getDelegatorId(msg.sender);
            if (delegatorId >= maxDelegators ) return;

/* have first vote, budget active*/
if ( b.state != State.Active ) {
b.state = State.Active;
b.votes.length = 32;
b.votes[delegatorId] = b.votes[delegatorId] & 0x0;
}
            b.votes[delegatorId] = _position;
            BudgetVoted(_budgetID, msg.sender,  _position);
}
}


    function passBudget(uint _budgetID) returns (uint8 proDelegatorNum, State state)
{
        Budget b = budgets[_budgetID];
        /* Check if debating period is over */
        if (now > (b.creationDate + debatingDays) && b.state == State.Active ){   
        proDelegatorNum = 0;
/* tally the votes */
            for (uint i = 0; i <  b.votes.length; ++i) {
                if (b.votes[i] == 2) ++proDelegatorNum;
            }
            /* execute result */
            if (proDelegatorNum >= (totalDelegators+1)/2 ) {
                b.state = State.Passed;
            } else  {
                b.state = State.Vetoed;
            }
            BudgetTallied(_budgetID, proDelegatorNum, b.state);
        }
    }

    function confirmBudget(uint _budgetID) returns (State result)
{
        Budget b = budgets[_budgetID];
        if ( msg.sender == b.recipient && b.state == State.Passed ){   
            b.state = State.Pending;
b.confirmDate = now;
            BudgetConfirmed(_budgetID, b.recipient, b.state);
            result = b.state;
        }
//result = b.state
    }

    /* 1= pro, 2 = con,
5= tick, delegators who voted the budget can tick it  ,then payment will happen
*/       
function tickBudget(uint _budgetID, byte _position)
onlyDelegator returns (byte)
{
        Budget b = budgets[_budgetID];
        uint8 delegatorId;       
if ( b.state ==  State.Pending && _position == 5 ) {
            delegatorId = getDelegatorId(msg.sender);           
            if (delegatorId >= maxDelegators ) return byte(delegatorId);
            if (b.votes[delegatorId] >=5) return b.votes[delegatorId] ;           
            b.votes[delegatorId] = b.votes[delegatorId] | _position;
/* have a vote, budget active*/
            BudgetTicked(_budgetID, msg.sender, _position);
}
}

    function budgetPayment(uint _budgetID) returns (uint8 winDelegatorNum, State result)
{
        Budget b = budgets[_budgetID];
uint8 tickDelegatorNum = 0;
uint8 vetoDelegatorNum = 0;
winDelegatorNum =0;

        /* Check if executeDays is not overtime */
if ( b.state == State.Pending) {
if ( now <= b.confirmDate + b.executeDays ){   
/* how many delegator agreed the payment */
        for (uint i = 0; i <  b.votes.length; ++i) {
    if ( b.votes[i] >= 5)
++tickDelegatorNum;
else if ( b.votes[i] >= 1)
++vetoDelegatorNum;
            }
        /* total of agreed is bigger than 1/2 delegators, will pay to recipient */
if (tickDelegatorNum >= (totalDelegators+1)/2 ) {
    b.state = State.Success;
winDelegatorNum = tickDelegatorNum;
b.recipient.send(b.amount);
        BudgetPaid(_budgetID, tickDelegatorNum, b.amount);
            }
if (vetoDelegatorNum >= (totalDelegators+1)/2 ) {
    b.state = State.Failed;
winDelegatorNum = vetoDelegatorNum;
            }

} else
b.state = State.Failed;
}
result = b.state;
    }
}