import json
import os
import logging
from pathlib import Path
import tvdb_v4_official
from utils import save_to_json

THETVDB_API_KEY = os.getenv("THETVDB_API_KEY")
CACHE_DIR = os.getenv("CACHE_DIR")
SAVE_DIR = os.path.join(CACHE_DIR, "metadata")
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

# Initialize TVDB client
tvdb = tvdb_v4_official.TVDB(THETVDB_API_KEY)

def get_series_info(series_id):
    """Fetch series information including episodes from TVDB."""
    try:
        series = tvdb.get_series_extended(series_id, meta="episodes")
        logging.info("Series info fetched successfully.")
        return series
    except Exception as e:
        logging.error(f"Error fetching series info: {e}")
        return None

def filter_episode_data(episode):
    """Filter episode data to include only necessary fields."""
    return {
        "id": episode.get("id"),
        "seriesId": episode.get("seriesId"),
        "name": episode.get("name"),
        "aired": episode.get("aired"),
        "runtime": episode.get("runtime"),
        "overview": episode.get("overview"),
        "image": episode.get("image"),
        "imageType": episode.get("imageType"),
        "isMovie": episode.get("isMovie"),
        "number": episode.get("number"),
        "absoluteNumber": episode.get("absoluteNumber"),
        "seasonNumber": episode.get("seasonNumber"),
        "finaleType": episode.get("finaleType"),
        "year": episode.get("year")
    }



async def fetch_and_cache_seasons(series_id, original_title):
    """Fetch and cache episodes for a given series ID asynchronously."""
    series_info = get_series_info(series_id)
    if not series_info:
        logging.error("Series info could not be fetched.")
        return

    # Fetch all episodes for the series
    try:
        all_episodes = tvdb.get_series_episodes(series_id, lang="eng").get('episodes', [])
    except Exception as e:
        logging.error(f"Error fetching episodes for series ID {series_id}: {e}")
        return
    
    # Organize episodes by season
    all_seasons = {}
    for episode in all_episodes:
        season_number = episode.get('seasonNumber')
        
        if season_number == 0:
            season_key = "Specials"
        else:
            season_key = f"Season {season_number}"
        
        if season_key not in all_seasons:
            all_seasons[season_key] = []
        
        filtered_data = filter_episode_data(episode)
        all_seasons[season_key].append(filtered_data)
    
    # Create folder for the series
    series_folder = Path(SAVE_DIR) / str(original_title)
    series_folder.mkdir(parents=True, exist_ok=True)
    
    # Save episodes for each season in separate JSON files
    for season_key, episodes in sorted(all_seasons.items()):
        episodes_sorted = sorted(episodes, key=lambda e: e.get('number'))
        season_file = series_folder / f"{season_key}.json"
        await save_to_json(episodes_sorted, season_file)

# async def main(series_id):
#     """Main function to fetch and cache episodes asynchronously."""
#     await fetch_and_cache_seasons(series_id)

# if __name__ == "__main__":
#     import asyncio
#     # Replace with your series ID
#     SERIES_ID = "315103"
#     asyncio.run(main(SERIES_ID))