public static List<Schedule> ListSchedule()
{
using (var db = new TrainContext())
{
return db.Schedules.ToList();
}
}
public static void BuyTicket(int userID, int ticketID)
{
using (var db = new TrainContext())
{
if (ExistsUser(userID) && ExistsTicket(ticketID))
{
User temp = GetUser(userID);
var ticket = from t in db.Tickets
where t.ID == ticketID
select t;
foreach (var item in ticket)
{
if (!item.Available)
{
throw new Exception("Ticket is unavailable");
}
else
{
UpdateTicketAvailbality(ticketID);
UpdateMoneyInUserCreditcard(userID, ticketID);
}
}
}
else
{
throw new Exception("Ticket or User not found");
}
}
}
static void Main(string[] args)
{
using (var db = new TrainContext())
{
UserWise.BuyTicket(134, 41);
}
}
public static List<City> GetAllCities()
{
List<City> cities = new List<City>();
using (var dbcontext = new TrainContext())
{
cities = dbcontext.Cities.ToList();
}
return cities;
}
public static void AddUser(User user)
{
using (var db = new TrainContext())
{
var us = db.Set<User>();
us.Add(user);
db.SaveChanges();
}
}
public static void AddCity(City city)
{
using (var context = new TrainContext())
{
var citi = context.Set<City>();
citi.Add(city);
context.SaveChanges();
}
}
public static List<Train> ListAllTrains()
{
List<Train> trains = new List<Train>();
using (var db = new TrainContext())
{
trains = db.Trains.ToList();
}
return trains;
}
public static void DeleteTrain(Train train)
{
using (var db = new TrainContext())
{
db.Trains.Attach(train);
db.Trains.Remove(train);
db.SaveChanges();
}
}
public static void AddTrain(Train train)
{
using (var db = new TrainContext())
{
var tr = db.Set<Train>();
tr.Add(train);
db.SaveChanges();
}
}
public static void DeleteCity(City city)
{
using (var dbContext = new TrainContext())
{
dbContext.Cities.Attach(city);
dbContext.Cities.Remove(city);
dbContext.SaveChanges();
}
}
public static void EditTrain(Train train)
{
using (var db = new TrainContext())
{
var result = db.Trains.SingleOrDefault(t => t.ID == train.ID);
if (result != null)
{
result.Info = train.Info;
result.NumberOfSeats = train.NumberOfSeats;
result.Seats = train.Seats;
db.SaveChanges();
}
}
}
public static void EditSchedule(Schedule sch)
{
using (var db = new TrainContext())
{
var result = db.Schedules.SingleOrDefault(s => s.ID == sch.ID);
if (result != null)
{
result.StartingCity = sch.StartingCity;
result.FinalCity = sch.FinalCity;
result.TicketPrice = sch.TicketPrice;
result.Train = sch.Train;
result.TripDuration = sch.TripDuration;
result.DateAndTime = sch.DateAndTime;
db.SaveChanges();
}
}
}
private static bool ExistsTicket(int ticketID)
{
using (var db = new TrainContext())
{
var result = from t in db.Tickets
where t.ID == ticketID
select t;
foreach (var item in result)
{
if (item.TripDateTime == null)
{
return false;
}
}
}
return true;
}
private static bool ExistsUser(int userID)
{
using (var db = new TrainContext())
{
var result = from u in db.Users
where u.ID == userID
select u;
foreach (var item in result)
{
if (item.FirstName == null )
{
return false;
}
}
}
return true;
}
public static void AddSchedule(Schedule sch)
{
List<Schedule> otherSchedules = ListSchedule();
using (var db = new TrainContext())
{
foreach (var item in otherSchedules.Where(s => s.Train == sch.Train))
{
if (item.Train == sch.Train)
{
if (!IntersectDates(sch.DateAndTime, item.DateAndTime, sch.TripDuration, item.TripDuration))
{
throw new Exception("Train is unvailable for this trip");
}
}
}
var addshedule = db.Set<Schedule>();
addshedule.Add(sch);
db.SaveChanges();
}
}
private static void UpdateMoneyInUserCreditcard(int userID, int ticketID)
{
using (var db = new TrainContext())
{
double ticketPrice = GetTicketPrice(ticketID);
double discount = Discout(userID);
int userCreditcardID = 0;
var credicardID = (from u in db.Users
where u.ID == userID
select u.CreditCardID);
foreach (var item in credicardID)
{
userCreditcardID = item;
}
var update = db.CreditCards.SingleOrDefault(c => c.ID == userCreditcardID);
if (update != null)
{
update.Amount -= (ticketPrice - (ticketPrice * discount));
db.SaveChanges();
}
}
}
private static User GetUser(int id)
{
User temp = new User();
using (var db = new TrainContext())
{
var user = from u in db.Users
where u.ID == id
select u;
foreach (var item in user)
{
temp = item;
}
}
return temp;
}
private static double Discout(int userID)
{
double disc = 0;
using (var db = new TrainContext())
{
var discount = from u in db.Users
join d in db.Discounts on u.DiscountNumber equals d.ID
where u.ID == userID
select new { Discout = d.DiscountAmount };
foreach (var item in discount)
{
disc = item.Discout;
}
}
return disc;
}
private static void UpdateTicketAvailbality(int ticketID)
{
using (var db = new TrainContext())
{
var availble = db.Tickets.SingleOrDefault(t => t.ID == ticketID);
if (availble != null)
{
availble.Available = false;
db.SaveChanges();
}
}
}
private static double GetTicketPrice(int ticketID)
{
double price = 0;
using (var db = new TrainContext())
{
var getPrice = from t in db.Tickets
where t.ID == ticketID
select t;
foreach (var item in getPrice)
{
price = item.Price;
}
}
return price;
}
public static void GetAllTrips(City start, City end)
{
using (var db = new TrainContext())
{
var startC = (from s in db.Schedules
join c in db.Cities on s.StartingCity equals c.ID
join v in db.Cities on s.FinalCity equals v.ID
where (start.ID.Equals(c.ID) && end.ID.Equals(v.ID))
/* where start.ID.Equals(c.ID)
let cityTwo = (from s in db.Schedules
join c in db.Cities on s.FinalCity equals c.ID
where end.ID.Equals(c.ID)
select c.Name)*/
select new { firstCity = c.Name, finalCity = v.Name,PRiCe=s.TicketPrice,DUration=s.TripDuration, DATE = s.DateAndTime});
foreach (var item in startC)
{
Console.WriteLine($"from {item.firstCity} to {string.Join(" ", item.finalCity)} TicketPrice: {item.PRiCe}, DateTime: {item.DATE}, Duration: {item.DUration}");
}
}
}
