public static async Task<IEnumerable<HelpRequestModel>> GetNearRequests(
CoordinatesModel coordinates, int maxDistance, string sessionKey)
{
headers[sessionHeaderName] = sessionKey;
string url = baseUrl + "near/" + maxDistance.ToString();
return await HttpRequester.Post<IEnumerable<HelpRequestModel>>(url, coordinates, headers);
}
private async void HandleFilterRequests(object obj)
{
if(string.IsNullOrEmpty(MaxDistance))
{
return;
}
int maxDistance;
if(!int.TryParse(MaxDistance, out maxDistance))
{
ErrorMessage = "Invalid distance";
return;
}
ErrorMessage = "";
try
{
var geolocator = new Geolocator();
geolocator.DesiredAccuracy = PositionAccuracy.High;
var position = await geolocator.GetGeopositionAsync();
var coordinates = new CoordinatesModel()
{
Latitude = position.Coordinate.Latitude,
Longitude = position.Coordinate.Longitude
};
HelpRequests = await HelpRequestsPersister.GetNearRequests(
coordinates, maxDistance, AccountManager.CurrentUser.SessionKey);
OnPropertyChanged("HelpRequests");
}
catch (Exception ex)
{
ErrorMessage = "Unable to get current location";
}
}
private async void HandleAddRequest(object obj)
{
try
{
if(string.IsNullOrEmpty(Title) || string.IsNullOrWhiteSpace(Title))
{
ErrorMessage = "Enter a request title";
return;
}
if (string.IsNullOrEmpty(Text) || string.IsNullOrWhiteSpace(Text))
{
ErrorMessage = "Enter a request text";
return;
}
var geolocator = new Geolocator();
geolocator.DesiredAccuracy = PositionAccuracy.High;
var position = await geolocator.GetGeopositionAsync();
var coordinates = new CoordinatesModel()
{
Latitude = position.Coordinate.Latitude,
Longitude = position.Coordinate.Longitude
};
var request = new HelpRequestModel()
{
Title = Title,
Text = Text,
PictureUrl = PictureUrl,
Coordinates = coordinates
};
IsAddingRequest = true;
OnPropertyChanged("IsAddingRequest");
await HelpRequestsPersister.AddRequest(request, AccountManager.CurrentUser.SessionKey);
NavigationService.Navigate(ViewType.MyRequests);
NotificationsManager.ShowToastNotification("Request added");
}
catch (Exception ex)
{
ErrorMessage = "Unable to get location";
IsAddingRequest = false;
OnPropertyChanged("IsAddingRequest");
}
}
