public static EmbedBuilder BuildSellView(PapertradeSellResult data)
{
var embed = new EmbedBuilder()
.WithTitle($"Sold {data.Amount} shares of {data.StockCode} at {data.Price}")
.AddField(fb => fb.WithName(":money_with_wings: " + Format.Bold("Total gain")).WithValue(data.Cost))
.AddField(fb => fb.WithName(":moneybag: ").WithValue($"You now have a total of {data.TotalAmount} shares of {data.StockCode}").WithIsInline(true))
.WithOkColor();
return(embed);
}
public async Task <Result <PapertradeSellResult> > SellShares(long userId, string stockCode, long amount)
{
var stockCodeUpper = stockCode.ToUpper();
var lookup = await _asxService.Lookup(stockCodeUpper);
if (!lookup.IsSuccess)
{
return new Result <PapertradeSellResult> {
IsSuccess = false, Message = lookup.Message
}
}
;
var data = lookup.Payload;
if (!data.Last_Price.HasValue)
{
return new Result <PapertradeSellResult>()
{
IsSuccess = false, Message = "Current price could not be retrieved."
}
}
;
var price = data.Last_Price.Value;
var cost = amount * price;
var user = _databaseContext.PapertradeUser.First(x => x.UserId == userId);
var result = new PapertradeSellResult()
{
UserId = userId,
Amount = amount,
StockCode = stockCodeUpper,
Cost = cost,
Price = price
};
if (user.OwnedStocks == null || user.OwnedStocks.All(x => x.StockCode != stockCodeUpper) ||
user.OwnedStocks.First(x => x.StockCode == stockCodeUpper).Shares < amount)
{
return new Result <PapertradeSellResult> {
IsSuccess = false, Message = "You don't have those shares to sell."
}
}
;
user.Money += cost;
result.Money = user.Money;
var ownedStock = user.OwnedStocks.First(x => x.StockCode == stockCodeUpper);
ownedStock.Shares -= amount;
result.TotalAmount = user.OwnedStocks.First(x => x.StockCode == stockCodeUpper).Shares;
if (result.TotalAmount == 0)
{
user.OwnedStocks.Remove(ownedStock);
}
user.Transactions.Add(new PapertradeTransaction()
{
StockCode = stockCodeUpper,
Shares = amount,
TransactionType = PapertradeTransactionType.SELL,
User = user,
Price = (decimal)price
});
await _databaseContext.SaveChangesAsync();
return(new Result <PapertradeSellResult>()
{
IsSuccess = true,
Payload = result
});
}
}
}