public async Task <string> Reserve(string train, int seats)
{
List <Seat> availableSeats = new List <Seat>();
int count = 0;
var result = string.Empty;
string bookingRef;
// get the train
var JsonTrain = await GetTrain(train);
result = JsonTrain;
var trainInst = new Train(JsonTrain);
if ((trainInst.ReservedSeats + seats) <= Math.Floor(ThreasholdManager.GetMaxRes() * trainInst.GetMaxSeat()))
{
var numberOfReserv = 0;
// find seats to reserve
for (int index = 0, i = 0; index < trainInst.Seats.Count; index++)
{
var each = trainInst.Seats[index];
if (each.BookingRef == "")
{
i++;
if (i <= seats)
{
availableSeats.Add(each);
}
}
}
foreach (var a in availableSeats)
{
count++;
}
var reservedSets = 0;
if (count != seats)
{
return(string.Format("{{\"train_id\": \"{0}\", \"booking_reference\": \"\", \"seats\": []}}",
train));
}
else
{
using (var client = new HttpClient())
{
bookingRef = await GetBookRef(client);
}
foreach (var availableSeat in availableSeats)
{
availableSeat.BookingRef = bookingRef;
numberOfReserv++;
reservedSets++;
}
}
if (numberOfReserv == seats)
{
await _trainCaching.Save(train, trainInst, bookingRef);
using (var client = new HttpClient())
{
var value = new MediaTypeWithQualityHeaderValue("application/json");
client.BaseAddress = new Uri(urITrainDataService);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(value);
if (reservedSets == 0)
{
Console.WriteLine("Reserved seat(s): ", reservedSets);
}
// HTTP POST
HttpContent resJSON = new StringContent(buildPostContent(train, bookingRef, availableSeats), Encoding.UTF8, "application/json");
var response = await client.PostAsync("reserve", resJSON);
response.EnsureSuccessStatusCode();
var todod = "[TODOD]";
return(string.Format(
"{{\"train_id\": \"{0}\", \"booking_reference\": \"{1}\", \"seats\": {2}}}",
train,
bookingRef,
dumpSeats(availableSeats)));
}
}
}
return(string.Format("{{\"train_id\": \"{0}\", \"booking_reference\": \"\", \"seats\": []}}", train));
}