public static bool IsExpired(this VotingRecord votingRecord, long currentAge)
{
var lockExpiredAge = votingRecord.VoteAge;
foreach (var day in votingRecord.LockDaysList)
{
lockExpiredAge += day;
}
return(lockExpiredAge <= currentAge);
}
public override Hash Vote(VoteInput input)
{
var candidatePublicKey = input.CandidatePublicKey;
var amount = input.Amount;
var lockTime = input.LockTime;
Assert(lockTime.InRange(90, 1095),
ContractErrorCode.GetErrorMessage(ContractErrorCode.InvalidOperation, "Lock days is illegal."));
// Cannot vote to non-candidate.
var candidates = State.CandidatesField.Value;
Assert(candidates != null, ContractErrorCode.GetErrorMessage(ContractErrorCode.NotFound, "No candidate."));
Assert(candidates != null && candidates.PublicKeys.Contains(candidatePublicKey),
ContractErrorCode.GetErrorMessage(ContractErrorCode.InvalidOperation,
"Target didn't announce election."));
var voterPublicKey = Context.RecoverPublicKey().ToHex();
// A candidate cannot vote to anybody.
Assert(candidates != null && !candidates.PublicKeys.Contains(voterPublicKey),
ContractErrorCode.GetErrorMessage(ContractErrorCode.InvalidOperation, "Candidate can't vote."));
// Transfer the tokens to Consensus Contract address.
State.TokenContract.Lock.Send(new LockInput
{
From = Context.Sender,
To = Context.Self,
Symbol = Context.Variables.NativeSymbol,
Amount = amount,
LockId = Context.TransactionId,
Usage = "Lock for getting tickets."
});
var currentTermNumber = State.CurrentTermNumberField.Value;
var currentRoundNumber = State.CurrentRoundNumberField.Value;
// To make up a VotingRecord instance.
TryToGetBlockchainStartTimestamp(out var blockchainStartTimestamp);
var votingRecord = new VotingRecord
{
Count = amount,
From = voterPublicKey,
To = candidatePublicKey,
RoundNumber = currentRoundNumber,
TransactionId = Context.TransactionId,
VoteAge = CurrentAge,
UnlockAge = CurrentAge + (long)lockTime,
TermNumber = currentTermNumber,
VoteTimestamp = blockchainStartTimestamp.ToDateTime().AddMinutes(CurrentAge).ToTimestamp(),
UnlockTimestamp = blockchainStartTimestamp.ToDateTime().AddMinutes(CurrentAge + (long)lockTime)
.ToTimestamp()
};
votingRecord.LockDaysList.Add(lockTime);
// Add the transaction id of this voting record to the tickets information of the voter.
var tickets = State.TicketsMap[voterPublicKey.ToStringValue()];
if (tickets != null)
{
tickets.VoteToTransactions.Add(votingRecord.TransactionId);
}
else
{
tickets = new Tickets {
PublicKey = voterPublicKey
};
tickets.VoteToTransactions.Add(votingRecord.TransactionId);
}
tickets.VotedTickets += votingRecord.Count;
tickets.HistoryVotedTickets += votingRecord.Count;
State.TicketsMap[voterPublicKey.ToStringValue()] = tickets;
// Add the transaction id of this voting record to the tickets information of the candidate.
var candidateTickets = State.TicketsMap[candidatePublicKey.ToStringValue()];
if (candidateTickets != null)
{
candidateTickets.VoteFromTransactions.Add(votingRecord.TransactionId);
}
else
{
candidateTickets = new Tickets {
PublicKey = candidatePublicKey
};
candidateTickets.VoteFromTransactions.Add(votingRecord.TransactionId);
}
candidateTickets.ObtainedTickets += votingRecord.Count;
candidateTickets.HistoryObtainedTickets += votingRecord.Count;
State.TicketsMap[candidatePublicKey.ToStringValue()] = candidateTickets;
// Update the amount of votes (voting records of whole system).
State.VotesCountField.Value += 1;
// Update the amount of tickets.
State.TicketsCountField.Value += votingRecord.Count;
// Add this voting record to voting records map.
State.VotingRecordsMap[votingRecord.TransactionId] = votingRecord;
// Tell Dividends Contract to add weights for this voting record.
State.DividendContract.AddWeights.Send(new Dividend.WeightsInfo()
{
TermNumber = currentTermNumber + 1, Weights = votingRecord.Weight
});
Context.LogDebug(() => $"Weights of vote {votingRecord.TransactionId.ToHex()}: {votingRecord.Weight}");
return(Context.TransactionId);
}