protected override async Task <string> DataReceived(UserCommandType command)
{
string result = "";
try
{
var trigger = SellTriggerTimer.RemoveUserTrigger(command.username, command.stockSymbol);
if (trigger != null)
{
command.fundsSpecified = true;
command.funds = trigger.Amount;
// Check if trigger exists
MySQL db = new MySQL();
result = await db.PerformTransaction(CancelSell, command).ConfigureAwait(false);
}
else
{
return(LogErrorEvent(command, $"No trigger set for {command.stockSymbol}"));
}
}
catch (Exception ex)
{
LogDebugEvent(command, ex.Message);
return(LogErrorEvent(command, "Error processing command"));
}
return(result);
}
async Task <string> CheckUserStock(MySqlCommand cmd, UserCommandType command)
{
cmd.CommandText = "get_user_stock";
cmd.Parameters.AddWithValue("@pUserId", command.username);
cmd.Parameters["@pUserId"].Direction = ParameterDirection.Input;
cmd.Parameters.AddWithValue("@pStock", command.stockSymbol);
cmd.Parameters["@pStock"].Direction = ParameterDirection.Input;
cmd.Parameters.Add("@pStockAmount", DbType.Int32);
cmd.Parameters["@pStockAmount"].Direction = ParameterDirection.Output;
await cmd.ExecuteNonQueryAsync().ConfigureAwait(false);
if (cmd.Parameters["@pStockAmount"].Value == DBNull.Value)
{
return(LogErrorEvent(command, "User does not exist or does not have this stock"));
}
if (Convert.ToInt32(cmd.Parameters["@pStockAmount"].Value) < command.funds)
{
return(LogErrorEvent(command, "Insufficient user stocks"));
}
command.fundsSpecified = false;
return(await SellTriggerTimer.StartOrUpdateTimer(command).ConfigureAwait(false));;
}
public static async Task <string> StartOrUpdateTimer(UserCommandType command)
{
SellTriggerTimer timer;
bool newTimer;
lock (_timerLock)
{
newTimer = !_timers.TryGetValue(command.stockSymbol, out timer);
if (newTimer)
{
if (command.fundsSpecified)
{
return("Set sell amount before creating trigger");
}
timer = new SellTriggerTimer(command.stockSymbol);
if (!_timers.TryAdd(command.stockSymbol, timer))
{
LogDebugEvent(command, "Error adding timer");
}
}
}
var msg = await timer.AddOrUpdateUser(command).ConfigureAwait(false);
if (newTimer)
{
var _ = timer.Start();
}
return(msg);
}
protected override async Task <string> DataReceived(UserCommandType command)
{
try
{
command.fundsSpecified = true;
var msg = await SellTriggerTimer.StartOrUpdateTimer(command).ConfigureAwait(false);
if (msg == null)
{
return($"Trigger amount set successfully for stock {command.stockSymbol}");
}
return(LogErrorEvent(command, msg));
}
catch (Exception ex)
{
LogDebugEvent(command, ex.Message);
return(LogErrorEvent(command, "Error processing command."));
}
}