public async Task <CountryType> GetCountry([Parent] AirportType airport)
{
var country = (await _dataStore.FetchAllCountriesAsync()).FirstOrDefault(c => c.Name == airport.Country);
return(country != null
? _mapper.Map <CountryType>(country)
: new CountryType(airport.Country, null, null));
}
public async Task <IEnumerable <AirlineType> > GetAirlines([Parent] AirportType airport)
{
var routes = await GetRoutesInternal(airport);
var airlineIds = routes.Select(r => r.AirlineId).Distinct();
var airlines = await Task.WhenAll(airlineIds.Select(_dataStore.GetAirlineByIdAsync));
return(_mapper.Map <IEnumerable <AirlineType> >(airlines.Where(airline => airline != null)));
}
public async Task <IEnumerable <RouteType> > GetRoutes([Parent] AirportType airport)
{
var routes = await GetRoutesInternal(airport);
return(_mapper.Map <IEnumerable <RouteType> >(routes));
}
private async Task <IEnumerable <Route> > GetRoutesInternal(AirportType airport)
{
return((await _dataStore.FetchRoutesByDestinationAirportAsync(airport.Id))
.Concat(await _dataStore.FetchRoutesBySourceAirportAsync(airport.Id)));
}
