public async static Task<FlightPlanViewModel> CreateAsync(FlightPlan flightPlan)
{
var fpvm = new FlightPlanViewModel(App.DataSourceManager);
fpvm.flightPlan = flightPlan;
await fpvm.LoadWaypoints();
return fpvm;
}
public static FlightPlan FromString(string s, IAirportDirectory directory)
{
var retval = new FlightPlan();
if(string.IsNullOrWhiteSpace(s))
{
throw new ArgumentException("s");
}
var wpTable = s.Split(Separator);
retval.Waypoints = wpTable.Select(wp => directory.GetAirportData(wp));
return retval;
}
public static FlightPlan FromString(string s, IAirportDirectory directory)
{
var retval = new FlightPlan();
if (string.IsNullOrWhiteSpace(s))
{
throw new ArgumentException("s");
}
var wpTable = s.Split(Separator);
retval.Waypoints = wpTable.Select(wp => directory.GetAirportData(wp));
return(retval);
}
public async Task LoadAsync()
{
var roamingFolder = Windows.Storage.ApplicationData.Current.RoamingFolder;
StorageFile fpFile = null;
bool fileCreationNeeded = false;
var plans = new List <FlightPlan>();
try
{
fpFile = await roamingFolder.GetFileAsync(FlightPlanSource.FileName);
using (var stream = await fpFile.OpenStreamForReadAsync())
{
using (var reader = new StreamReader(stream))
{
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
if (!string.IsNullOrWhiteSpace(line))
{
plans.Add(FlightPlan.FromString(line, this.airportDirectory));
}
}
}
}
this.FlightPlans = plans;
}
catch (FileNotFoundException)
{
Debug.WriteLine("No flight plans file. Creating one.");
fileCreationNeeded = true;
}
if (fileCreationNeeded)
{
fpFile = await roamingFolder.CreateFileAsync(FlightPlanSource.FileName);
}
}
