/// <summary>取得 點位資料中的最大序號</summary>
/// <returns></returns>
private int GetPositionInstancesMaxSn()
{
if (PositionInstances == null || !PositionInstances.Any())
{
return((int)NumUdpSn.Minimum - 1);
}
else
{
var maxSn = PositionInstances.Max(m => m.Sn);
return(maxSn);
}
}
private void RefreshPositionInfoList()
{
BasicInitial();
if (this.PositionInstances != null && this.PositionInstances.Any())
{
PositionInstances = PositionInstances.OrderBy(m => m.Sn).ToList();
foreach (var positionInfo in this.PositionInstances)
{
var text = positionInfo.ToString();
this.LstBxPositionInfo.Items.Add(text);
}
}
}
/// <summary>點位資料的 序號 是否存在</summary>
/// <param name="sn">序號</param>
/// <returns></returns>
private bool IsSnExist(int sn)
{
if (PositionInstances == null || !PositionInstances.Any())
{
return(false);
}
else
{
var inst = PositionInstances.Where(m => m.Sn == sn).FirstOrDefault();
if (inst == null)
{
return(false);
}
else
{
return(true);
}
}
}
private void StateUpdateLoop()
{
decimal quantity = 0;
decimal cost = 0;
var txs = new List <CryptoTransaction>();
DateTimeOffset?oldestOpen = null;
var positionInstances = new List <PositionInstance>();
DateTimeOffset lastTransaction = DateTimeOffset.UtcNow;
bool PurchaseProcessing(ICryptoTransaction st)
{
lastTransaction = st.When;
if (quantity == 0)
{
oldestOpen = st.When;
positionInstances.Add(new PositionInstance(Token));
}
quantity += st.Quantity;
cost += st.DollarAmount;
txs.Add(
CryptoTransaction.DebitTx(
Id,
st.Id,
Token,
$"Purchased {st.Quantity} for ${st.DollarAmount}",
st.DollarAmount,
st.When
)
);
positionInstances[positionInstances.Count - 1].Buy(st.Quantity, st.DollarAmount, st.When);
return(true);
}
bool SellProcessing(ICryptoTransaction st)
{
// TODO: this should never happen but in prod I see sell get
// triggered before purchase... something is amiss
if (positionInstances.Count > 0)
{
positionInstances[positionInstances.Count - 1].Sell(st.Quantity, st.DollarAmount, st.When);
}
lastTransaction = st.When;
txs.Add(
CryptoTransaction.CreditTx(
Id,
st.Id,
Token,
$"Sold {st.Quantity} for ${st.DollarAmount}",
st.DollarAmount,
st.When
)
);
quantity -= st.Quantity;
cost -= st.DollarAmount;
return(true);
}
foreach (var st in BuyOrSell.OrderBy(e => e.When).ThenBy(i => BuyOrSell.IndexOf(i)))
{
if (Deletes.Contains(st.Id))
{
continue;
}
if (st is CryptoPurchased sp)
{
PurchaseProcessing(sp);
}
else if (st is CryptoSold ss)
{
SellProcessing(ss);
}
if (quantity == 0)
{
cost = 0;
oldestOpen = null;
}
}
foreach (var a in Awards)
{
if (Deletes.Contains(a.Id))
{
continue;
}
if (quantity == 0)
{
oldestOpen = a.When;
}
quantity += a.Quantity;
}
foreach (var y in Yields)
{
if (Deletes.Contains(y.Id))
{
continue;
}
quantity += y.Quantity;
}
Quantity = quantity;
Cost = cost;
Transactions.Clear();
Transactions.AddRange(txs);
PositionInstances.Clear();
PositionInstances.AddRange(positionInstances);
DaysHeld = oldestOpen.HasValue ?
(int)Math.Floor(DateTimeOffset.UtcNow.Subtract(oldestOpen.Value).TotalDays) : 0;
DaysSinceLastTransaction = (int)DateTimeOffset.UtcNow.Subtract(lastTransaction).TotalDays;
}
private void StateUpdateLoop()
{
decimal avgCost = 0;
decimal owned = 0;
decimal cost = 0;
var txs = new List <Transaction>();
DateTimeOffset?oldestOpen = null;
var positionInstances = new List <PositionInstance>();
DateTimeOffset lastTransaction = DateTimeOffset.UtcNow;
bool PurchaseProcessing(IStockTransaction st)
{
lastTransaction = st.When;
if (owned == 0)
{
oldestOpen = st.When;
positionInstances.Add(new PositionInstance(Ticker));
}
avgCost = (avgCost * owned + st.Price * st.NumberOfShares)
/ (owned + st.NumberOfShares);
owned += st.NumberOfShares;
cost += st.Price * st.NumberOfShares;
txs.Add(
Transaction.DebitTx(
Id,
st.Id,
Ticker,
$"Purchased {st.NumberOfShares} shares @ ${st.Price}/share",
st.Price * st.NumberOfShares,
st.When,
isOption: false
)
);
positionInstances[positionInstances.Count - 1].Buy(st.NumberOfShares, st.Price, st.When);
return(true);
}
bool SellProcessing(IStockTransaction st)
{
// TODO: this should never happen but in prod I see sell get
// triggered before purchase... something is amiss
if (positionInstances.Count > 0)
{
positionInstances[positionInstances.Count - 1].Sell(st.NumberOfShares, st.Price, st.When);
}
lastTransaction = st.When;
txs.Add(
Transaction.CreditTx(
Id,
st.Id,
Ticker,
$"Sold {st.NumberOfShares} shares @ ${st.Price}/share",
st.Price * st.NumberOfShares,
st.When,
isOption: false
)
);
txs.Add(
Transaction.PLTx(
Id,
Ticker,
$"Sold {st.NumberOfShares} shares @ ${st.Price}/share",
avgCost * st.NumberOfShares,
st.Price * st.NumberOfShares,
st.When,
isOption: false
)
);
owned -= st.NumberOfShares;
cost -= avgCost * st.NumberOfShares;
return(true);
}
foreach (var st in BuyOrSell.OrderBy(e => e.When).ThenBy(i => BuyOrSell.IndexOf(i)))
{
if (Deletes.Contains(st.Id))
{
continue;
}
if (st is StockPurchased sp)
{
PurchaseProcessing(sp);
}
else if (st is StockSold ss)
{
SellProcessing(ss);
}
if (owned == 0)
{
avgCost = 0;
cost = 0;
oldestOpen = null;
}
}
AverageCost = avgCost;
Owned = owned;
Cost = cost;
Transactions.Clear();
Transactions.AddRange(txs);
PositionInstances.Clear();
PositionInstances.AddRange(positionInstances);
DaysHeld = oldestOpen.HasValue ? (int)Math.Floor(DateTimeOffset.UtcNow.Subtract(oldestOpen.Value).TotalDays)
: 0;
DaysSinceLastTransaction = (int)DateTimeOffset.UtcNow.Subtract(lastTransaction).TotalDays;
}
