//Method Loads all the records from the CSV files into appropriate objects
public void LoadAllRecords()
{
ListOfCostumers costumerList = ListOfCostumers.Instance(); //Get an instance of the ListOfCustomer (Singleton) class
if (File.Exists(csvCostumerPath)) //check if customer.csv file exists
{
GetCostumers(); //cal the GetCostumers() method
}
if (File.Exists(csvBookingPath)) //check if booking.csv file exists
{
foreach (Costumer aCostumer in costumerList.CostumerList) //Iterates through all the costumers in the list
{
GetBookings(aCostumer); //Call the GetBooking method (Populates the booking list (of each customer) with all its bookings)
}
foreach (Costumer aCostumer in costumerList.CostumerList) //Iterates through all the costumers in the list
{
foreach (Booking aBooking in aCostumer.CostumerBookings) //Iterates through all the bookings for a specific customer
{
if (File.Exists(csvGuestsPath)) //check if guests.csv file exists
{
GetGuests(aBooking); //Call the GetGuests method
}
if (File.Exists(csvExtrasPath)) //check if extras.csv file exists
{
GetExtras(aBooking); //Call the GetExtras method
}
}
}
}
}
private List <Costumer> costumerList = new List <Costumer>(); //create a list of customers
// Returns always the same instance of the class. Creates a new instance if one has not yet been created
public static ListOfCostumers Instance()
{
if (instance == null)
{
instance = new ListOfCostumers();
}
return(instance);
}
// Loads all the customers from the CSV into a list of customers (ListOfCostumer Singleton Class)
public void GetCostumers()
{
// Create a streamReader object to access the file
StreamReader reader = new StreamReader(File.OpenRead(csvCostumerPath));
ListOfCostumers costumerList = ListOfCostumers.Instance();//Get an instance of the ListOfCustomer (Singleton) class
// Create a streamReader object to access the file
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
var values = line.Split(',');
Costumer aCostumer = new Costumer(Int32.Parse(values[0]), values[1], values[2]); //Create a new customer and sets its properties to the values on the csv
costumerList.AddCostumer(aCostumer); //adds the customer to the custumer list (in the ListOfCustumers in the singleton class)
}
reader.Dispose();
}
//Method Saves all the objects (customers, booking, guests and extras) in the system to the csv files
public void SaveAllRecords()
{
//Delete all the csv files (to write back from scratch)
File.Delete(csvCostumerPath);
File.Delete(csvBookingPath);
File.Delete(csvGuestsPath);
File.Delete(csvExtrasPath);
ListOfCostumers costumerList = ListOfCostumers.Instance();
foreach (Costumer aCostumer in costumerList.CostumerList)
{
WriteCostumer(aCostumer);
foreach (Booking aBooking in aCostumer.CostumerBookings)
{
WriteBooking(aCostumer.ReferenceNumber, aBooking);
}
}
}
