15-praktyka.py

user_choice = -1

tasks = []


def show_tasks():
    task_index = 0
    for task in tasks:
        print(task + " [" + str(task_index) + "]")
        task_index += 1


def add_task():
    task = input("Wpisz treść zadania: ")
    if task == "0":
        print("Powrót do menu")
    else:
        tasks.append(task)
        print("Dodano zadanie!")


def delete_task():
    task_index = int(input("Podaj indeks zadania do usunięcia: "))

    if task_index < 0 or task_index > len(tasks) - 1:
        print("Zadanie o tym indeksie nie istnieje")
        return

    tasks.pop(task_index)
    print("Usunięto zadanie!")


def save_tasks_to_file():
    file = open("tasks.txt", "w")
    for task in tasks:
        file.write(task+"\n")
    file.close()


def load_tasks_from_file():
    try:
        file = open("tasks.txt")

        for line in file.readlines():
            tasks.append(line.strip())

        file.close()
    except FileNotFoundError:
        return


load_tasks_from_file()

while user_choice != 5:
    if user_choice == 1:
        show_tasks()

    if user_choice == 2:
        add_task()

    if user_choice == 3:
        delete_task()

    if user_choice == 4:
        save_tasks_to_file()

    print()
    print("1. Pokaż zadania")
    print("2. Dodaj zadanie")
    print("3. Usuń zadanie")
    print("4. Zapisz zmiany do pliku")
    print("5. Wyjdź")

    user_choice = int(input("Wybierz liczbę: "))
    print()