public override SInt64Value CheckDividends(CheckDividendsInput input)
{
var termNumber = input.TermNumber;
var ticketsAmount = input.TicketsAmount;
var lockTime = input.LockTime;
var currentTermNumber = State.ConsensusContract.GetCurrentTermNumber.Call(new Empty()).Value;
if (termNumber >= currentTermNumber)
{
return(new SInt64Value());
}
var totalWeights = State.TotalWeightsMap[termNumber];
if (totalWeights > 0)
{
var totalDividends = State.DividendsMap[termNumber];
if (totalDividends > 0)
{
var weights = VotingRecord.CalculateWeight(ticketsAmount, lockTime) * totalDividends /
totalWeights;
return(new SInt64Value {
Value = weights
});
}
}
return(new SInt64Value());
}
public override SInt64Value GetLatestRequestDividendsTermNumber(VotingRecord input)
{
var termNumber = State.LastRequestedDividendsMap[input.TransactionId];
if (termNumber != 0)
{
return(new SInt64Value
{
Value = termNumber
});
}
return(new SInt64Value {
Value = input.TermNumber
});
}
public override SInt64Value GetAvailableDividends(VotingRecord input)
{
var votingRecord = input;
long dividends = 0;
var start = votingRecord.TermNumber + 1;
var lastRequestTermNumber = State.LastRequestedDividendsMap[votingRecord.TransactionId];
if (lastRequestTermNumber > 0)
{
start = lastRequestTermNumber + 1;
}
var voteInfo = new VoteInfo
{
Record = votingRecord,
Age = State.ConsensusContract.GetBlockchainAge.Call(new Empty()).Value
};
var end = Math.Min(GetExpireTermNumber(voteInfo).Value,
State.ConsensusContract.GetCurrentTermNumber.Call(new Empty()).Value - 1);
for (var i = start; i <= end; i++)
{
var totalWeights = State.TotalWeightsMap[i];
if (totalWeights > 0)
{
var totalDividends = State.DividendsMap[i];
if (totalDividends > 0)
{
dividends += totalDividends * votingRecord.Weight / totalWeights;
}
}
}
return(new SInt64Value {
Value = dividends
});
}
/// <summary>
/// Transfer dividends to miners.
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
// ReSharper disable once InconsistentNaming
public override SInt64Value TransferDividends(VotingRecord input)
{
var votingRecord = input;
if (State.ConsensusContract.Value == null)
{
State.ConsensusContract.Value =
State.BasicContractZero.GetContractAddressByName.Call(State.ConsensusContractSystemName.Value);
}
Assert(Context.Sender == State.ConsensusContract.Value, "Only consensus contract can transfer dividends.");
var dividendsOwner = votingRecord.From;
var dividendsOwnerAddress = Address.FromPublicKey(ByteArrayHelpers.FromHexString(dividendsOwner));
var startTermNumber = votingRecord.TermNumber + 1;
var history = State.LastRequestedDividendsMap[votingRecord.TransactionId];
if (history > 0)
{
startTermNumber = history + 1;
}
var voteInfo = new VoteInfo()
{
Record = votingRecord,
Age = State.ConsensusContract.GetBlockchainAge.Call(new Empty()).Value
};
var endTermNumber = Math.Min(GetExpireTermNumber(voteInfo).Value,
State.ConsensusContract.GetCurrentTermNumber.Call(new Empty()).Value - 1);
// Record last requested dividends term number.
var actualTermNumber = startTermNumber;
long totalDividendsAmount = 0;
for (var i = startTermNumber; i <= endTermNumber; i++)
{
var totalWeights = State.TotalWeightsMap[i];
Assert(totalWeights > 0, $"Total weights of term {i} not found.");
var dividends = State.DividendsMap[i];
Assert(dividends > 0, $"Dividends of term {i} not found.");
totalDividendsAmount += dividends * votingRecord.Weight / totalWeights;
actualTermNumber = i;
}
if (State.TokenContract.Value == null)
{
State.TokenContract.Value =
State.BasicContractZero.GetContractAddressByName.Call(State.TokenContractSystemName.Value);
}
State.TokenContract.Transfer.Send(new TransferInput
{
To = dividendsOwnerAddress,
Amount = totalDividendsAmount,
Symbol = Context.Variables.NativeSymbol,
Memo = "Transfer dividends."
});
Context.LogDebug(() => $"Gonna transfer {totalDividendsAmount} dividends to {dividendsOwnerAddress}");
State.LastRequestedDividendsMap[votingRecord.TransactionId] = actualTermNumber;
return(new SInt64Value()
{
Value = totalDividendsAmount
});
}