class Book:
    def __init__(self, title, author, year, desc):
        self._title = title
        self._author = author
        self._year = year
        self._desc = desc
        self._antallUtlån = 0
        self._progress = 0
        self._antallSider = 256

    def getYear(self):
        return self._year
        
    def description(self):
        return self.desc
    
    def is_old(self):
        return 2025 - self.year > 50

    def __str__(self):
        return f"{self._title} Age: {2025-self._year}"

    def lån(self):
        self._antallUtlån += 1

    def økLeseProgress(self, p):
        if p < 0:
            print("Du kan ikke lese denne boka baklengs. Om du ønsker å lese baklengs så kan jeg anbefale en manga!")
        elif self._progress + p > self._antallSider:
            print("Det finnes ikke så mange sider i boka")
        else:
            self._progress += p

bokHylle = [
    Book("Harry Potter and the Half Blood Prince", "J.K.Rowling", 2004, "A boy lives or smth"),
    Book("LOTR", "J.R.R.Tolkien", 1988, "Bad guy lost his wedding ring"),
    Book("Mobydick", "Old. Guy", 1200, "En hval eln")
]

minsteBook = bokHylle[0]

minsteBook.lån()
minsteBook.økLeseProgress(20)

for book in bokHylle:
    if book.getYear() < minsteBook.getYear():
        minsteBook = book

print(minsteBook)