class RentDetails {
    var name: String = ""
    var days: Int = 0
    var price: Double = 0.00
    var addItem1: Double = 0.00
    var addItem2: Double = 0.00
    var addItem3: Double = 0.00
    var totalCost: Double = 0.00

    func calculateCost() {
        self.totalCost = Double(self.days) * self.price + self.addItem1 + self.addItem2 + self.addItem3
    }
}

var rentList: [RentDetails] = []
var exit = 0

func displayList() {
  print("LISTA WYPOŻYCZEŃ\n")
  var id: Int = 1
  
  for rent in rentList {
    var addItem1: String? = nil
    var addItem2: String? = nil
    var addItem3: String? = nil
    if rent.addItem1 != 0.00
    {
      addItem1 = " + kask"
    }
    if rent.addItem2 != 0.00
    {
      addItem2 = " + gogle"
    }
    if rent.addItem3 != 0.00
    {
      addItem3 = " + kijki"
    }
    print("\(id). \(rent.name), \(rent.days) dni\(addItem1 ?? "")\(addItem2 ?? "")\(addItem3 ?? ""), CENA: \(rent.price)/dzień, KOSZT: \(rent.totalCost)")
    id+=1
  }
}

repeat {
  print("\u{001B}[2J")
  print("\u{001B}[0;0H")
  print ("WITAMY W WYPOŻYCZALNI SPRZĘTU NARCIARSKIEGO!\n1. Wypożycz sprzęt\n2. Zobacz listę wypożyczeń\n3. Zwróć sprzęt")
  let option = readLine()
  switch option {
    case "1": 
      print("\u{001B}[2J")
      print("\u{001B}[0;0H")
      let rent = RentDetails()
      print("Imię i nazwisko:")
      rent.name = readLine() ?? ""
      print("\nIlość dni:")
      if let input = readLine()
      {
        if let converted = Int(input)
        {
            rent.days = converted
        }
      }
      print("\nCena:")
      if let input = readLine()
      {
        if let converted = Double(input)
        {
            rent.price = converted
        }
      }
      print("\nDodatkowy kask T/N:")
      let addItem1 = readLine()
      if addItem1 == "T"
      {
        rent.addItem1 = 15.00
      }
      print("\nDodatkowe gogle T/N:")
      let addItem2 = readLine()
      if addItem2 == "T"
      {
        rent.addItem2 = 10.00
      }
      print("\nDodatkowe kijki T/N:")
      let addItem3 = readLine()
      if addItem3 == "T"
      {
        rent.addItem3 = 5.50
      }

      rent.calculateCost()
      rentList.append(rent)
    break

    case "2": 
      print("\u{001B}[2J")
      print("\u{001B}[0;0H")
      displayList()

      print("\n\nKliknij dowolny przycisk, aby powrócić do menu")
      readLine()
    break

    case "3": 
      print("\u{001B}[2J")
      print("\u{001B}[0;0H")
      displayList()

      print("\n\nKliknij ENTER, aby powrócić do menu")
      print("\nWprowadź ID, aby usunąć")
      var idToRemove: Int = -1
      if let input = readLine()
      {
        if let converted = Int(input)
        {
            idToRemove = converted - 1
        }
      }
      if idToRemove == -1
      {
        break
      
      }
      else
      {
        rentList.remove(at: idToRemove)
      }
    break

    default: exit = 1
  }
} while exit == 0