public async static Task <List <string> > GetTimesForSchedule(int num, string origin, string dest)
{
Tuple <string, string, IEnumerable <string> > routes_and_ids = await MainDataStore.GetCommonRoutesAndStopIds(origin, dest);
string originID = routes_and_ids.Item1;
string destID = routes_and_ids.Item2;
List <string> routes = routes_and_ids.Item3.ToList <string>();
// Grab the data store
string store = await RefreshCache();
JsonObject obj = JsonObject.Parse(store);
JsonArray routeJson = obj["routes"].GetArray();
// Grab only the route objects you need
TimeDictionary timeDict = new TimeDictionary(originID, destID);
foreach (JsonValue routeVal in routeJson)
{
JsonObject routeObj = routeVal.GetObject();
if (routes.Contains(routeObj["id"].GetString()))
{
timeDict.AddObj(routeObj);
}
}
// Create an ordered list of times
List <string> times = new List <string>();
while (times.Count < num)
{
string nextTime = timeDict.PopAndUpdate();
if (nextTime == "")
{
break; // this could happen if a user picks a trip that's only on weekends, but it's a weekday
}
times.Add(nextTime);
}
// cleanup
routeJson = null;
obj = null;
routes = null;
routes_and_ids = null;
timeDict.clear(); timeDict = null;
return(times);
}
private async static Task <Tuple <string, string> > CallService(string origin, string dest, List <string> results)
{
string newNumMinutes = "";
string newUnits = "";
List <string> times = await MainDataStore.GetTimesForSchedule(20, origin, dest);
if (times.Count == 0)
{
return(Tuple.Create <string, string>("", ""));
}
TileUpdater updater = CreateNewTileUpdater();
int minuteCountdown = 0;
int numNotifications = 0;
int numListings = 0;
foreach (string time in times)
{
minuteCountdown = GetNewMinuteCountdown(time);
// add listings to main UI
if (results != null)
{
if (numNotifications == 0)
{
Tuple <string, string> countdownBoxResults = SetCountdownBox(minuteCountdown);
newNumMinutes = countdownBoxResults.Item1;
newUnits = countdownBoxResults.Item2;
}
else
{
AddListing(minuteCountdown, results);
}
numListings++;
}
// add tile notifications
if (numNotifications <= maxNotifications)
{
numNotifications = AddTileNotifications(minuteCountdown, numNotifications, origin, dest, updater);
}
if (numListings > maxListings)
{
break;
}
}
if (results != null && results.Count == 0)
{
results.Add("No further times scheduled.");
}
// clean up
updater = null;
times.Clear(); times = null;
return(Tuple.Create <string, string>(newNumMinutes, newUnits));
}