public CoordinatesForAdvertisementsModel GetCoordinatesModel(int maxDistance = -1)
{
CoordinatesForAdvertisementsModel coordinatesModel = new CoordinatesForAdvertisementsModel();
var location = GetLocation();
var settingsMOdel = (AppSettingsModel)sharedPreferencesHelper.GetSharedPreference <AppSettingsModel>(SharedPreferencesKeys.APP_SETTINGS);
if (location == null || latitude == 0 || longitude == 0)
{
AlertsService.ShowLongToast(this.mContext, "Nie mogê ustaliæ aktualnej lokalizacji. W³¹cz lokalizacjê w ustawieniach telefonu.");
throw new Exception("Brak lokalizacji");
}
else
{
coordinatesModel.Latitude = latitude;
coordinatesModel.Longitude = longitude;
if (maxDistance > -1)
{
coordinatesModel.MaxDistance = maxDistance;
}
else if (settingsMOdel != null)
{
coordinatesModel.MaxDistance = settingsMOdel.LocationSettings.MaxDistance;
}
else
{
coordinatesModel.MaxDistance = ValueConsts.MAX_DISTANCE_VALUE;
}
}
return(coordinatesModel);
}
public async Task <IEnumerable <AdvertisementItemShort> > GetUserAdvertisements(string userId, int pageNumber, double lat, double lon)
{
var coordinatesModel = new CoordinatesForAdvertisementsModel {
Latitude = lat, Longitude = lon
};
var advertisementsFromDb = this.advertisementItemDbService.GetUserAdvertisements(userId, pageNumber).ToList();
IEnumerable <AdvertisementItemShort> advertisementsViewModels = await MapDbModelsToShortViewModels(advertisementsFromDb, coordinatesModel);
return(advertisementsViewModels);
}
private async Task CheckNewAdvertisementsAroundUserHomeLocation(CoordinatesForAdvertisementsModel currentLocationCoordinates)
{
if (appsettings == null && appsettings.LocationSettings.Latitude == 0.00D)
{
//nic nie robie
return;
}
SetSearchModel(appsettings);
var areThereNewAdvertisements = await this.advertisementItemService.CheckForNewAdvertisementsAroundCurrentLocationSinceLastCheck(searchModelForNotifications);
if (areThereNewAdvertisements)
{
if (!LocationsAreSimiliar(currentLocationCoordinates, appsettings.LocationSettings))
{
NotifyUserAboutNewAdvertisements(AdvertisementsKind.AdvertisementsArounUserHomeLocation);
}
}
}
private bool LocationsAreSimiliar(CoordinatesForAdvertisementsModel currentLocationCoordinates, CoordinatesForAdvertisementsModel homeLocationCoordinates)
{
double positiveDifferenceKilometers = 0.0111 * 2;
double negativeDifferenceKilometers = positiveDifferenceKilometers - (positiveDifferenceKilometers * 2);
var latDifference = currentLocationCoordinates.Latitude - homeLocationCoordinates.Latitude;
var lonDifference = currentLocationCoordinates.Longitude - homeLocationCoordinates.Longitude;
if ((latDifference > 0 && (latDifference > positiveDifferenceKilometers)) ||
(latDifference < 0 && (latDifference < negativeDifferenceKilometers)) ||
(lonDifference > 0 && (lonDifference > positiveDifferenceKilometers)) ||
(lonDifference < 0 && (lonDifference < negativeDifferenceKilometers)))
{
return(false);
}
else
{
return(true);
}
}
private async Task <IEnumerable <AdvertisementItemShort> > MapDbModelsToShortViewModels(IEnumerable <AdvertisementItem> advertisementsFromDb, CoordinatesForAdvertisementsModel coordinatesModel = null)
{
var viewModelsList = new List <AdvertisementItemShort>();
foreach (var dbModel in advertisementsFromDb)
{
var viewModel = new AdvertisementItemShort();
viewModel.Id = dbModel.Id;
viewModel.Size = dbModel.Size;
viewModel.AdvertisementTitle = dbModel.Title;
viewModel.AdvertisementPrice = dbModel.Price;
viewModel.MainPhoto = await this.photosService.GetAdvertisementMinPhotoInBytes(dbModel.AdvertisementPhotos.FirstOrDefault(p => p.IsMainPhoto).PhotoName);
if (coordinatesModel != null)
{
viewModel.Distance = this.coordinatesCalculator.GetDistanceBetweenTwoLocalizations(coordinatesModel.Latitude, coordinatesModel.Longitude, dbModel.Latitude, dbModel.Longitude);
}
else
{
viewModel.Distance = 0.0D;
}
viewModel.IsSellerOnline = this.chatHubCacheService.IsUserConnected(dbModel.UserId);
viewModel.IsOnlyForSell = dbModel.IsOnlyForSell;
viewModel.IsExpired = dbModel.ExpirationDate < DateTime.Now;
viewModelsList.Add(viewModel);
}
return(viewModelsList);
}
