public async Task <ActionResult <TaskResult> > SubmitStockSell(string ticker, int count, decimal price, string accountid, string auth)
{
// Account logic first
Entity account = await Entity.FindAsync(accountid);
if (account == null)
{
return(new TaskResult(false, "Failed to find account " + accountid));
}
User authUser = await _context.Users.AsQueryable().FirstOrDefaultAsync(u => u.Api_Key == auth);
if (authUser == null)
{
return(new TaskResult(false, "Failed to find auth account."));
}
StockDefinition stockDef = await _context.StockDefinitions.FindAsync(ticker.ToUpper());
if (stockDef == null)
{
return(new TaskResult(false, "Failed to find stock with ticker " + ticker));
}
// Authority check
if (!await account.HasPermissionAsync(authUser, "eco"))
{
return(new TaskResult(false, "You do not have permission to trade for this entity!"));
}
if (count < 1)
{
return(new TaskResult(false, "You must sell a positive number of stocks!"));
}
// At this point the account is authorized //
// Find currently owned stock
var owned = await _context.StockObjects.AsQueryable().FirstOrDefaultAsync(s => s.Owner_Id == accountid && s.Ticker == ticker);
if (owned == null || count > owned.Amount)
{
return(new TaskResult(false, "You don't own that many stocks!"));
}
if (price < 0)
{
return(new TaskResult(false, "Negatives are not allowed!"));
}
if (price == 0)
{
StockOffer highOffer = await ExchangeManager.GetHighestBuyOffer(ticker, _context);
if (highOffer != null)
{
price = highOffer.Target;
}
else
{
return(new TaskResult(false, "There is no market rate!"));
}
}
decimal totalPrice = count * price;
// Perform transaction
owned.Amount -= count;
// If amount hit 0, remove the object
if (owned.Amount == 0)
{
_context.StockObjects.Remove(owned);
}
else
{
_context.StockObjects.Update(owned);
}
// Create offer
StockOffer sellOffer = new StockOffer()
{
Id = Guid.NewGuid().ToString(),
Amount = count,
Order_Type = "SELL",
Owner_Name = account.Name,
Owner_Id = account.Id,
Target = price.Round(),
Ticker = ticker
};
_context.StockOffers.Add(sellOffer);
await _context.SaveChangesAsync();
string json = JsonConvert.SerializeObject(sellOffer);
await ExchangeHub.Current.Clients.All.SendAsync("StockOffer", json);
return(new TaskResult(true, $"Successfully posted SELL order {sellOffer.Id}"));
}