/// <inheritdoc/>
public override async Task Handle(UpdateDailyOutflow command)
{
var root = await _repository.Find <Wallet>(command.Target);
if (root == null)
{
throw new ArgumentNullException(nameof(command.Address));
}
var coin = await _repository.Find <Coin>(root.Coin);
if (coin == null)
{
throw new ArgumentNullException(nameof(root.Coin));
}
var txResults = await GetTransactions(command);
if (txResults == null)
{
return;
}
var outflows = new Dictionary <Instant, (Instant time, double amount)>();
foreach (var tx in txResults)
{
var dateTime = Instant.FromUnixTimeMilliseconds(tx.ReceiveTime).InUtc().LocalDateTime;
var date = new LocalDate(dateTime.Year, dateTime.Month, dateTime.Day);
var instant = date.AtMidnight().InUtc().ToInstant();
var amount = tx.Amount;
if (tx.To == command.Target)
{
amount *= -1;
}
if (outflows.ContainsKey(instant))
{
amount += outflows[instant].amount;
}
outflows[instant] = (Instant.FromUnixTimeMilliseconds(tx.ReceiveTime), amount);
}
ICommand changeBalanceCommand = null;
var idx = 0;
foreach (var v in outflows)
{
changeBalanceCommand = new RetroactiveCommand <ChangeWalletBalance>(new ChangeWalletBalance(command.Address, new Quantity(-v.Value.amount, coin.Asset), $"Out{command.Index}_{idx}"), v.Value.time);
await _balanceHandler.Handle(changeBalanceCommand);
++idx;
}
command.EventType = changeBalanceCommand?.EventType;
}
/// <inheritdoc/>
public override async Task Handle(UpdateDailyMining command)
{
var root = await _repository.Find <Wallet>(command.Target);
if (root == null)
{
throw new ArgumentNullException(nameof(command.Address));
}
var coin = await _repository.Find <Coin>(root.Coin);
if (coin == null)
{
throw new ArgumentNullException(nameof(root.Coin));
}
var minedBlocks = await GetMinedBlocks(command);
if (minedBlocks == null)
{
return;
}
var blocks = new Dictionary <Instant, (Instant time, double amount)>();
foreach (var block in minedBlocks)
{
var dateTime = Instant.FromUnixTimeMilliseconds(block.Timestamp).InUtc().LocalDateTime;
var date = new LocalDate(dateTime.Year, dateTime.Month, dateTime.Day);
var instant = date.AtMidnight().InUtc().ToInstant();
var amount = block.Feereward;
if (blocks.ContainsKey(instant))
{
amount += blocks[instant].amount;
}
blocks[instant] = (Instant.FromUnixTimeMilliseconds(block.Timestamp), amount);
}
ICommand mineCommand = null;
var idx = 0;
foreach (var v in blocks)
{
mineCommand = new RetroactiveCommand <MineCoin>(new MineCoin(command.Address, new Quantity(v.Value.amount, coin.Asset), $"Mining{command.Index}_{idx}"), v.Value.time);
await _mineHandler.Handle(mineCommand);
++idx;
}
command.EventType = mineCommand?.EventType;
}
/// <inheritdoc/>
public override async Task Handle(UpdateQuote command)
{
var root = await _repository.Find <AssetPair>(command.Target);
if (root == null)
{
throw new ArgumentNullException(nameof(AssetPair));
}
if (root.QuoteDates.Any(d =>
d.InUtc().Year == command.Timestamp.InUtc().Year&& d.InUtc().Month == command.Timestamp.InUtc().Month&&
d.InUtc().Day == command.Timestamp.InUtc().Day))
{
throw new InvalidOperationException(
$"Quote already added for {command.Timestamp.InUtc().ToString("yyyy-MM-dd", new DateTimeFormatInfo())}");
}
ICommandHandler handler = null;
ICommand commandT = null;
if (root.ForAsset.AssetType == Asset.Type.Currency && root.DomAsset.AssetType == Asset.Type.Currency)
{
commandT = new UpdateQuote <Api.Fx.JsonResult>(command.Target)
{
MessageId = command.MessageId
};
handler = _handlers.SingleOrDefault(h => h.CanHandle(commandT));
}
else if (root.ForAsset.AssetType == Asset.Type.Coin && root.DomAsset.AssetType == Asset.Type.Currency)
{
commandT = new UpdateQuote <Api.Coin.JsonResult>(command.Target)
{
MessageId = command.MessageId
};
handler = _handlers.SingleOrDefault(h => h.CanHandle(commandT));
}
if (handler == null)
{
throw new InvalidOperationException($"Automatic quote retrieval for {root.ForAsset.Ticker}{root.DomAsset.Ticker} not supported");
}
await handler.Handle(commandT);
command.EventType = commandT.EventType;
}
/// <inheritdoc />
public virtual async Task Handle(TCommand command)
{
if (command == null)
{
throw new ArgumentNullException(typeof(TCommand).GetFriendlyName());
}
var root = await _repository.Find <TRoot>(command.Target, ComputeHash);
if (root == null)
{
throw new ArgumentNullException(typeof(TRoot).GetFriendlyName());
}
if (command.Timestamp < root.Timestamp)
{
throw new InvalidOperationException(
$"{typeof(TCommand).Name} command ({command.Timestamp}) updating the past of the aggregate {typeof(TRoot).Name}:{command.Target} ({root.Timestamp}) ");
}
Act(root, command);
if (command.UseTimestamp)
{
root.TimestampEvents(command.Timestamp);
}
var events = root.GetUncommittedEvents().OfType <Event>().ToList();
var eventType = events.Select(e => e.MessageType).SingleOrDefault();
if (eventType == null)
{
throw new InvalidOperationException("More than one event type produced by a command");
}
foreach (var e in events)
{
e.CommandId = command.MessageId;
e.AncestorId = command.MessageId;
e.CorrelationId = command.CorrelationId;
}
command.EventType = eventType;
await _repository.Save(root);
}
private async Task Handle(IEvent e)
{
// _log.Trace($"{typeof(TSaga).Name}.When({e.EventType}[{e.Stream}])");
_log.Trace($"{e.MessageType}", typeof(TSaga).GetFriendlyName());
try
{
var emptySaga = new TSaga();
var id = emptySaga.SagaId(e);
var isInitializer = emptySaga.IsInitializer(e);
TSaga saga;
if (isInitializer)
{
saga = await _repository.GetOrAdd <TSaga>(id);
}
else
{
saga = await _repository.Find <TSaga>(id);
}
if (saga == null)
{
return;
}
var saveEvent = ((Event)e).Copy();
saga.When(saveEvent);
var commands = saga.GetUncommittedCommands().OfType <Command>();
foreach (var c in commands)
{
c.AncestorId = e.MessageId;
c.CorrelationId = id;
}
await _repository.Save(saga);
}
catch (Exception exception)
{
_log.Errors.Add(exception);
}
}
/// <summary>
/// Repeated repository access until the aggregate root is found or timeout is reached
/// </summary>
/// <param name="repository">Aggregate root repository</param>
/// <param name="id">Aggregate root id</param>
/// <param name="predicate">Stop condition</param>
/// <param name="timeout">Execution timeout</param>
/// <param name="delay">Delay between repeating the bus calls</param>
/// <typeparam name="T">Aggregate root type</typeparam>
/// <returns>Task representing the asynchronous repeated find</returns>
public static async Task <T> FindUntil <T>(this IEsRepository <IAggregate> repository, string id, Func <T, bool> predicate = null, TimeSpan timeout = default(TimeSpan), TimeSpan delay = default(TimeSpan))
where T : class, IAggregate, new()
{
return(await RetryUntil(async() => await repository.Find <T>(id)));
}