public async Task <bool> IsAirportAvialable(string airport)
{
var airports = await HTTPService.GetAirports(airport);
foreach (var a in airports)
{
if (a.Alias == airport)
{
return(true);
}
}
return(false);
}
public async Task <bool> IsAirlineActive(string alias)
{
var airlines = await HTTPService.GetAirlines(alias);
foreach (var a in airlines)
{
if (a.Active)
{
return(true);
}
}
return(false);
}
public async Task <string> FindRoutes(string _srcAirport, string resultRoutes)
{
//add srcAirport to checked list
visited.Add(_srcAirport);
try
{
//get results about destAirports
List <Route> results = await HTTPService.GetRoutes(_srcAirport, cts.Token);
if (results.Count > 0)
{
//check results with searchable src and dest airports, is find - cancel any requests
foreach (var r in results)
{
//check airline is active
bool airlineActive = await IsAirlineActive(r.Airline);
if (r.DestAirport == _destAirport && airlineActive)
{
cts.Cancel();
resultString = String.Concat(resultString, resultRoutes, " -> ", r.DestAirport);
return(resultString);
}
}
//create new list src airports, compare with visited src airports
var srcList = new List <string>();
results.ForEach(r => {
if (!visited.Contains(r.DestAirport))
{
srcList.Add(r.DestAirport);
}
});
//new tasks list and start parallel all (recursive)
var tasks = srcList.Select(s => FindRoutes(s, String.Concat(resultRoutes + " -> ", s)));
await Task.WhenAll(tasks);
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
return(resultString);
}