import caldav
import json
import requests
import tzdata

from datetime import datetime, timedelta
from zoneinfo import ZoneInfo
from urllib.parse import urlparse
from urllib.request import urlopen
import urllib.error

# Function to create calendar events from JSON data
def create_calendar_events_from_json(caldav_url, username, password, json):
    try:
        # 1. Connect to CalDAV server
        client = caldav.DAVClient(
            url=caldav_url,
            username=username,
            password=password
        )

        # 2. Get principal and calendar
        my_principal = client.principal()
        my_calendar = my_principal.calendar(name="Achievement of the Week")  # Replace with your calendar name

        # 3. Read JSON data
        response = requests.get(json)
        response.raise_for_status()
        
        # 3a. Parse JSON + Time Calculator
        events_data = response.json()
        start_time = datetime.fromisoformat(events_data['StartAt']).replace(tzinfo=ZoneInfo('UTC')).astimezone(ZoneInfo('America/Los_Angeles'))
        end_time = start_time + timedelta(weeks=1)
        
        # 3b. Delete old data if it's the same.
        for event in my_calendar.events():
            if events_data['Achievement']['Title'] in event.data:
                event.delete()
        
        # Optional: Verify deletion
        remaining = [e for e in my_calendar.events() if events_data['Achievement']['Title'] in e.data]
        print(f"Remaining duplicates: {len(remaining)}")
        
        # 4. Create events from JSON data
        # Create event in iCal format
        ical_data = f"""BEGIN:VCALENDAR
VERSION:2.0
BEGIN:VEVENT
SUMMARY:{events_data['Achievement']['Title']}
DTSTART:{start_time.strftime('%Y%m%dT%H%M%S')}
DTEND:{end_time.strftime('%Y%m%dT%H%M%S')}
DESCRIPTION:{events_data['Achievement']['Description']}
LOCATION:{events_data['Console']['Title']} - {events_data['Game']['Title']}
END:VEVENT
END:VCALENDAR
"""
            # Create the event
        my_calendar.save_event(ical_data)

    except Exception as e:
        print(f"Error: {str(e)}")

# Example JSON format:
"""
[
{
  "Achievement": {
    "ID": 354286,
    "Title": "Adventure Man: Action Force Victory",
    "Description": "Complete the Dr X Battle on Adventure Mode (No Passwords)",
    "Points": 10,
    "TrueRatio": 17,
    "Type": "win_condition",
    "Author": null,
    "BadgeName": "399242",
    "BadgeURL": "/Badge/399242.png",
    "DateCreated": "2023-09-08",
    "DateModified": "2023-09-11"
  },
  "Console": {
    "ID": 5,
    "Title": "Game Boy Advance"
  },
  "ForumTopic": {
    "ID": 29289
  },
  "Game": {
    "ID": 9848,
    "Title": "Action Man: Robot Atak"
  },
  "StartAt": "2025-01-06T00:00:00.000000Z",
]
"""

# Usage example
if __name__ == "__main__":

    if len(sys.argv) != 5:
        print("Usage: python3 app.py <caldav_url> <username> <password> <ra_api_key>")
        sys.exit(1)

    CALDAV_URL = sys.argv[1]
    USERNAME = sys.argv[2]
    PASSWORD = sys.argv[3]
    RA_API = sys.argv[4]

    # CalDAV server details
    JSON = f"https://retroachievements.org/API/API_GetAchievementOfTheWeek.php?&y={RA_API}"
    response = requests.get(JSON_FILE)
    data = response.json()

    create_calendar_events_from_json(CALDAV_URL, USERNAME, PASSWORD, JSON)