from pathlib import Path
from sqlalchemy.orm import Session
from ..database import SessionLocal
from ..models import Topic
import os

def sync_topic_to_db(topic_id: str, db: Session = None) -> Topic:
    close_db = False
    if db is None:
        db = SessionLocal()
        close_db = True
    try:
        topic = db.query(Topic).filter(Topic.id == topic_id).first()
        if not topic:
            raise ValueError(f"Topic {topic_id} not found in DB")
        return topic
    finally:
        if close_db:
            db.close()

def sync_all_topics():
    logger = __import__('logging').getLogger(__name__)
    try:
        from sqlalchemy import func
        db = SessionLocal()
        total = db.query(Topic).count()
        rows = db.query(Topic.status, func.count(Topic.id)).group_by(Topic.status).all()
        by_status = {s: int(c) for s, c in rows}
        logger.info(f"sync_all_topics: DB verified — {total} topics total, statuses: {by_status}")
        db.close()
    except Exception as e:
        logger.error(f"sync_all_topics: DB connection failed — {e}")
        raise

if __name__ == "__main__":
    sync_all_topics()