utils.py

import requests
from PIL import Image, ImageTk
import io
import threading

TMDB_IMAGE_BASE = "https://image.tmdb.org/t/p/w300"

# Basit in-memory cache: {url: PIL.ImageTk.PhotoImage}
_image_cache = {}
_image_cache_lock = threading.Lock()

def fetch_poster_image(poster_path):
    """
    Poster yolu verilince PIL ImageTk.PhotoImage döner.
    Cache içeriyorsa oradan verir.
    Yoksa indirir ve cache'e ekler.
    """
    if not poster_path:
        return None

    url = TMDB_IMAGE_BASE + poster_path
    with _image_cache_lock:
        if url in _image_cache:
            return _image_cache[url]

    try:
        resp = requests.get(url, timeout=10)
        resp.raise_for_status()
        img_data = resp.content
        pil_image = Image.open(io.BytesIO(img_data)).convert("RGBA")
        photo_image = ImageTk.PhotoImage(pil_image)
        with _image_cache_lock:
            _image_cache[url] = photo_image
        return photo_image
    except Exception as e:
        print(f"[UTILS ERROR] fetch_poster_image: {e}")
        return None

def safe_int(value, default=0):
    try:
        return int(value)
    except (ValueError, TypeError):
        return default

def media_key(media_type, media_id):
    return f"{media_type}_{media_id}"