public async Task <double> GetDistance(double fromLat, double fromLong, double toLat, double tolong)
{
if (!int.TryParse(_context.User.Claims.FirstOrDefault(cl => cl.Type == "id")?.Value, out var userId))
{
RaiseError("unauthorized", HttpStatusCode.Unauthorized);
}
var distance = await _distanceRepo.GetQueryableItems(predicate : en => en.FromLat == fromLat && en.FromLong == fromLong && en.ToLat == toLat && en.ToLong == tolong).SingleOrDefaultAsync();
var request = new Request()
{
UserId = userId
};
if (distance == null)
{
request.Distance = new Distance()
{
FromLat = fromLat,
FromLong = fromLong,
ToLat = toLat,
ToLong = tolong,
Value = GeoUtil.GetDistance(fromLat, fromLong, toLat, tolong)
};
}
if (distance != null)
{
request.DistanceId = distance.Id;
}
await _RequestRepo.InsertAsync(request);
await _unitofWork.SaveChangesAsync();
return(distance != null ? distance.Value : request.Distance.Value);
}