public override void LoadAsyncData()
{
_allCoinRequestService = new CryptoRequestService();
CurrentRequestPropertyType = RequestPropertyType.USDPrice;
CurrentRequestFilterType = RequestFilterType.Maximum;
}
public async Task FilterCoins(CryptoRequestService requestParameters)
{
try
{
FilteredCoinList = new ObservableCollection <BasicCryptoModel>(await _coinMarketCapService.GetFilteredCoins(requestParameters));
FilterMenuVisibility = false;
}
catch (CryptoServiceException ex)
{
RaiseErrorOccured(ex.Message);
}
}
public void OnConditionMet(CryptoRequestParameters condition, CryptoDataModel model)
{
var service = new CryptoRequestService();
service.AddFilter(condition);
var conditionString = service.GetFilters().Single();
if (ConditionMet == null)
{
return;
}
ConditionMet(this, new ConditionMetEventArgs(model.Data.Symbol, conditionString));
}
public async Task <List <BasicCryptoModel> > GetFilteredCoins(CryptoRequestService requestParameters)
{
try
{
IEnumerable <BasicCryptoModel> cryptoList = await GetAllCoins().ConfigureAwait(false);
var filterStrings = requestParameters.GetFilters();
foreach (var filter in filterStrings)
{
cryptoList = cryptoList.Where(filter);
}
return(cryptoList.ToList());
}
catch (Exception)
{
throw new CryptoServiceException("Download failed, service may be down or you do not have a stable internet connection");
}
}
private void OnAddFilter()
{
var filter = new CryptoRequestParameters
{
Property = _currentRequestProperty,
Type = CurrentRequestFilterType,
Value = CurrentRequestValue
};
var filterString = CryptoRequestService.ParseParameter(filter);
try
{
FilterDictionary.Add(filterString, filter);
FilterStrings.Add(filterString);
AddCryptoToTrackerCommand.RaiseCanExecuteChanged();
}
catch (ArgumentException)
{
return;
}
}
public ApplyFiltersEventArgs(CryptoRequestService request)
{
Request = request;
}
