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# utils/challenge_manager.py
import json
import os
import uuid
from datetime import datetime
from typing import Dict, List, Optional
CHALLENGES_FILE = "data/challenges.json"
def _load_challenges() -> Dict:
"""Loads all challenges from the JSON file."""
if os.path.exists(CHALLENGES_FILE):
with open(CHALLENGES_FILE, "r") as f:
try:
return json.load(f)
except json.JSONDecodeError:
return {}
return {}
def _save_challenges(challenges: Dict):
"""Saves all challenges to the JSON file."""
os.makedirs(os.path.dirname(CHALLENGES_FILE), exist_ok=True)
with open(CHALLENGES_FILE, "w") as f:
json.dump(challenges, f, indent=2)
class ChallengeManager:
def __init__(self):
self.challenges = _load_challenges()
def create_challenge(self, creator_id: str, topic: str, difficulty: str, num_questions: int) -> str:
"""Creates a new challenge and returns its ID."""
challenge_id = str(uuid.uuid4())[:8] # Short UUID for easy sharing
challenge_data = {
"challenge_id": challenge_id,
"creator_id": creator_id,
"created_at": datetime.now().isoformat(),
"topic": topic,
"difficulty": difficulty,
"num_questions": num_questions,
"participants": {}, # {user_id: {score: int, quiz_results: List}}
"status": "active" # active, completed
}
self.challenges[challenge_id] = challenge_data
_save_challenges(self.challenges)
return challenge_id
def get_challenge(self, challenge_id: str) -> Optional[Dict]:
"""Retrieves a challenge by its ID."""
return self.challenges.get(challenge_id)
def update_challenge_score(self, challenge_id: str, user_id: str, score: int, quiz_results: List[Dict]):
"""Updates a participant's score and quiz results for a challenge."""
challenge = self.challenges.get(challenge_id)
if challenge:
challenge["participants"][user_id] = {
"score": score,
"quiz_results": quiz_results,
"completed_at": datetime.now().isoformat()
}
_save_challenges(self.challenges)
else:
raise ValueError(f"Challenge with ID {challenge_id} not found.")
def get_all_active_challenges(self) -> List[Dict]:
"""Returns a list of all active challenges."""
return [c for c in self.challenges.values() if c.get("status") == "active"]
def get_challenges_by_creator(self, creator_id: str) -> List[Dict]:
"""Returns a list of challenges created by a specific user."""
return [c for c in self.challenges.values() if c.get("creator_id") == creator_id]
def set_challenge_status(self, challenge_id: str, status: str):
"""Sets the status of a challenge."""
if challenge_id in self.challenges:
self.challenges[challenge_id]["status"] = status
_save_challenges(self.challenges)
else:
raise ValueError(f"Challenge with ID {challenge_id} not found.") |