public async Task <List <PoiDto> > ListClosestPoisAsync(SearchPoiDto search)
{
if (search == null)
{
throw new ArgumentNullException(nameof(search));
}
IQueryable <Poi> query = DbContext.Pois;
//TODO: null-t nem engedni
IPoint location = null;
//order by distance
if (search.Longitude.HasValue && search.Latitude.HasValue)
{
location = LocationManager.GeometryFactory.CreatePoint(new GeoAPI.Geometries.Coordinate(search.Longitude.Value, search.Latitude.Value));
//TODO: valszeg ez nem marad szimplan query
query = query.OrderBy(p => p.Location.Distance(location));
}
var result = await query.Select(x => new { Poi = x, Distance = location != null ? x.Location.Distance(location) : 0 }).ToListAsync();
var pois = Mapper.Map <List <PoiDto> >(result.Select(r => r.Poi).ToList());
pois.ForEach(t => t.Distance = GeoCalculator.GetDistance(location.Y, location.X, t.Latitude, t.Longitude, 1, DistanceUnit.Kilometers));
return(pois);
}
public async Task <ActionResult <List <PoiDto> > > ListClosestPoisAsync(SearchPoiDto search) => Result(await PoiManager.ListClosestPoisAsync(search));
