/// <summary>
/// Determines if we can show a notification for the given price notification, based on user settings
/// </summary>
/// <param name="objectiveData">The price watch's data</param>
/// <param name="notificationType">The type of notification</param>
/// <returns>True if the notification can be shown, else false</returns>
private bool CanShowNotification(PriceWatchViewModel priceWatch, PriceNotificationType notificationType)
{
bool canShow = false;
switch (notificationType)
{
case PriceNotificationType.BuyOrder:
canShow = this.UserSettings.AreBuyOrderPriceNotificationsEnabled && !priceWatch.IsBuyOrderNotificationShown;
break;
case PriceNotificationType.SellListing:
canShow = this.UserSettings.AreSellListingPriceNotificationsEnabled && !priceWatch.IsSellListingNotificationShown;
break;
default:
break;
}
return(canShow);
}
public async Task <ActionResult> List()
{
// If user isn't authenticated, he must login to see his price watch
if (!User.Identity.IsAuthenticated)
{
// redirect
return(RedirectToAction("Login", "Account"));
}
//get user's price watch
var userPriceWatchList = _priceWatchRepository.GetPriceWatches(User.Identity.GetUserId());
// make view model
var viewLst = new List <PriceWatchViewModel>();
// indicator to save changes to database (if new entry is added)
bool saveChanges = false;
foreach (var pricewatch in userPriceWatchList)
{
// get last price added to that price watch
var lastUpdate = pricewatch.Entries?.OrderByDescending(d => d.Date).FirstOrDefault();
// if ther is a new date to search for
if (lastUpdate.Date.Date < DateTime.Today)
{
// get current product price from the api
var products = await _productRepository.GetProductsAsync(pricewatch.ProductName, 0, 1);
var productNow = products.FirstOrDefault();
//if product was found
if (productNow != null)
{
//indicate if the product price has gone up dow or stayed same
PriceIndicator indicator = PriceIndicator.Same;
if (productNow?.Price > lastUpdate?.Price)
{
indicator = PriceIndicator.Up;
}
if (productNow?.Price < lastUpdate?.Price)
{
indicator = PriceIndicator.Down;
}
var newEntry = new PriceWatchEntry()
{
Date = DateTime.Now,
Price = productNow.Price,
PriceIndicator = indicator
};
// must update the database at the end (cannot update now because we are in the middle of a query)
pricewatch.Entries.Add(newEntry);
lastUpdate = newEntry;
saveChanges = true;
}
}
//create view model for that price watch
var viewModel = new PriceWatchViewModel()
{
Id = pricewatch.Id,
CreationDate = pricewatch.CreationDate,
LastPrice = lastUpdate?.Price,
ImageUrl = pricewatch?.ImageUrl,
LastUpdate = lastUpdate?.Date,
PriceIndicatorGlyphicon = PriceWatchEntryViewModel.GetPriceIndicatorGlyphicon(lastUpdate?.PriceIndicator),
PriceIndicatorBgColor = PriceWatchEntryViewModel.GetPriceIndicatorBgColor(lastUpdate?.PriceIndicator),
ProductDescription = pricewatch.ProductDescription,
ProductName = pricewatch.ProductName
};
// add all entries
viewModel.Entries = new List <PriceWatchEntryViewModel>();
//sort by date descending (latest first)
foreach (var entry in pricewatch.Entries.OrderByDescending(d => d.Date))
{
//create view model for the entry
var viewModelEntry = new PriceWatchEntryViewModel()
{
Date = entry.Date,
Id = entry.Id,
Price = entry.Price,
PriceIndicator = entry.PriceIndicator
};
viewModel.Entries.Add(viewModelEntry);
}
// add view model to the view model list
viewLst.Add(viewModel);
}
// update the database if needed
if (saveChanges)
{
_priceWatchRepository.Save();
}
// return the viewModel list to the view
return(View("PriceWatchView", viewLst));
}
