| import json |
| import datetime |
|
|
| class Calendar: |
| def __init__(self, filename="calendar_data.json"): |
| self.filename = filename |
| self.reminders = self.load_calendar() |
| self.current_date = datetime.date.today() |
|
|
| |
| def load_calendar(self): |
| """Load reminders from a file.""" |
| try: |
| with open(self.filename, "r") as file: |
| return json.load(file) |
| except (FileNotFoundError, json.JSONDecodeError): |
| return {} |
|
|
| |
| def save_calendar(self): |
| """Save reminders to a file.""" |
| with open(self.filename, "w") as file: |
| json.dump(self.reminders, file, indent=4) |
|
|
| |
| def add_reminder(self, date, reminder): |
| """Add a reminder for a specific date.""" |
| if date not in self.reminders: |
| self.reminders[date] = [] |
| self.reminders[date].append(reminder) |
| self.save_calendar() |
| print(f"Reminder added for {date}: {reminder}") |
|
|
| |
| def show_all_reminders(self): |
| """Show all past and future reminders in our calendar app""" |
| if (self.reminders is None) or len(self.reminders)<1: |
| print("No reminders in calendar app. Please create an event reminder to start using the app.") |
| else: |
| print("# Date Event Description") |
| for i,(dt,event_description) in enumerate(self.reminders.items()): |
| print(f"{i+1}. {dt} {event_description}") |
|
|
| |
| def show_future_reminders(self): |
| """Show all future reminders in our calendar app""" |
| if (self.reminders is None) or len(self.reminders)<1: |
| print("No future reminders in calendar app. Please create a future event reminder.") |
| else: |
| current_datetime = datetime.now() |
| |
| print("# Date Event Description") |
| for i,(dt,event_description) in enumerate(self.reminders.items()): |
| dt = datetime.datetime.strptime(dt, 'YYYY-MM-DD') |
| |
| if current_datetime.date <= dt.date: |
| print(f"{i+1}. {dt} {event_description}") |
|
|
| |
| def show_reminders(self, date): |
| """Show reminders for a specific date.""" |
| if date in self.reminders: |
| print(f"Reminders for {date}:") |
| for i, reminder in enumerate(self.reminders[date], 1): |
| print(f"{i}. {reminder}") |
| else: |
| print(f"No reminders for {date}.") |
|
|
| |
| def browse_calendar(self, days): |
| """Move forward or backward in the calendar by a given number of days.""" |
| self.current_date += datetime.timedelta(days=days) |
| print(f"Current date: {self.current_date}") |
| self.show_reminders(str(self.current_date)) |
|
|
|
|
|
|
| if __name__ == "__main__": |
| calendar = Calendar() |
| |
| while True: |
| print("\nCalendar Menu:") |
| print("1. Add Reminder") |
| print("2. Show All Past and Future Reminders") |
| print("3. Show All Future Reminders") |
| print("4. Show Reminders for Specific Day") |
| print("5. Browse Calendar") |
| print("6. Exit") |
| choice = input("Choose an option: ") |
| |
| if choice == "1": |
| date = input("Enter date (YYYY-MM-DD): ") |
| reminder = input("Enter description for event reminder: ") |
| calendar.add_reminder(date, reminder) |
| elif choice == "2": |
| calendar.show_all_reminders() |
| elif choice == "3": |
| calendar.show_future_reminders() |
| elif choice == "4": |
| date = input("Enter date (YYYY-MM-DD): ") |
| calendar.show_reminders(date) |
| elif choice == "5": |
| days = int(input("Enter number of days to move (positive for forward, negative for backward): ")) |
| calendar.browse_calendar(days) |
| elif choice == "6": |
| calendar.save_calendar() |
| break |
| else: |
| print("Invalid option. Please try again.") |
|
|
