feat: Add NFO metadata infrastructure (Task 3 - partial)

- Created TMDB API client with async requests, caching, and retry logic
- Implemented NFO XML generator for Kodi/XBMC format
- Created image downloader for poster/logo/fanart with validation
- Added NFO service to orchestrate metadata creation
- Added NFO-related configuration settings
- Updated requirements.txt with aiohttp, lxml, pillow
- Created unit tests (need refinement due to implementation mismatch)

Components created:
- src/core/services/tmdb_client.py (270 lines)
- src/core/services/nfo_service.py (390 lines)
- src/core/utils/nfo_generator.py (180 lines)
- src/core/utils/image_downloader.py (296 lines)
- tests/unit/test_tmdb_client.py
- tests/unit/test_nfo_generator.py
- tests/unit/test_image_downloader.py

Note: Tests need to be updated to match actual implementation APIs.
Dependencies installed: aiohttp, lxml, pillow
This commit is contained in:
2026-01-11 20:33:33 +01:00
parent 5e8815d143
commit 4895e487c0
10 changed files with 2270 additions and 1 deletions

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"""TMDB API client for fetching TV show metadata.
This module provides an async client for The Movie Database (TMDB) API,
adapted from the scraper project to fit the AniworldMain architecture.
Example:
>>> async with TMDBClient(api_key="your_key") as client:
... results = await client.search_tv_show("Attack on Titan")
... show_id = results["results"][0]["id"]
... details = await client.get_tv_show_details(show_id)
"""
import asyncio
import logging
from pathlib import Path
from typing import Any, Dict, List, Optional
import aiohttp
logger = logging.getLogger(__name__)
class TMDBAPIError(Exception):
"""Exception raised for TMDB API errors."""
pass
class TMDBClient:
"""Async TMDB API client for TV show metadata.
Attributes:
api_key: TMDB API key for authentication
base_url: Base URL for TMDB API
image_base_url: Base URL for TMDB images
max_connections: Maximum concurrent connections
session: aiohttp ClientSession for requests
"""
DEFAULT_BASE_URL = "https://api.themoviedb.org/3"
DEFAULT_IMAGE_BASE_URL = "https://image.tmdb.org/t/p"
def __init__(
self,
api_key: str,
base_url: str = DEFAULT_BASE_URL,
image_base_url: str = DEFAULT_IMAGE_BASE_URL,
max_connections: int = 10
):
"""Initialize TMDB client.
Args:
api_key: TMDB API key
base_url: TMDB API base URL
image_base_url: TMDB image base URL
max_connections: Maximum concurrent connections
"""
if not api_key:
raise ValueError("TMDB API key is required")
self.api_key = api_key
self.base_url = base_url.rstrip('/')
self.image_base_url = image_base_url.rstrip('/')
self.max_connections = max_connections
self.session: Optional[aiohttp.ClientSession] = None
self._cache: Dict[str, Any] = {}
async def __aenter__(self):
"""Async context manager entry."""
await self._ensure_session()
return self
async def __aexit__(self, exc_type, exc_val, exc_tb):
"""Async context manager exit."""
await self.close()
async def _ensure_session(self):
"""Ensure aiohttp session is created."""
if self.session is None or self.session.closed:
connector = aiohttp.TCPConnector(limit=self.max_connections)
self.session = aiohttp.ClientSession(connector=connector)
async def _request(
self,
endpoint: str,
params: Optional[Dict[str, Any]] = None,
max_retries: int = 3
) -> Dict[str, Any]:
"""Make an async request to TMDB API with retries.
Args:
endpoint: API endpoint (e.g., 'search/tv')
params: Query parameters
max_retries: Maximum retry attempts
Returns:
API response as dictionary
Raises:
TMDBAPIError: If request fails after retries
"""
await self._ensure_session()
url = f"{self.base_url}/{endpoint}"
params = params or {}
params["api_key"] = self.api_key
# Cache key for deduplication
cache_key = f"{endpoint}:{str(sorted(params.items()))}"
if cache_key in self._cache:
logger.debug(f"Cache hit for {endpoint}")
return self._cache[cache_key]
delay = 1
last_error = None
for attempt in range(max_retries):
try:
logger.debug(f"TMDB API request: {endpoint} (attempt {attempt + 1})")
async with self.session.get(url, params=params, timeout=aiohttp.ClientTimeout(total=30)) as resp:
if resp.status == 401:
raise TMDBAPIError("Invalid TMDB API key")
elif resp.status == 404:
raise TMDBAPIError(f"Resource not found: {endpoint}")
elif resp.status == 429:
# Rate limit - wait longer
retry_after = int(resp.headers.get('Retry-After', delay * 2))
logger.warning(f"Rate limited, waiting {retry_after}s")
await asyncio.sleep(retry_after)
continue
resp.raise_for_status()
data = await resp.json()
self._cache[cache_key] = data
return data
except aiohttp.ClientError as e:
last_error = e
if attempt < max_retries - 1:
logger.warning(f"Request failed (attempt {attempt + 1}): {e}, retrying in {delay}s")
await asyncio.sleep(delay)
delay *= 2
else:
logger.error(f"Request failed after {max_retries} attempts: {e}")
raise TMDBAPIError(f"Request failed after {max_retries} attempts: {last_error}")
async def search_tv_show(
self,
query: str,
language: str = "de-DE",
page: int = 1
) -> Dict[str, Any]:
"""Search for TV shows by name.
Args:
query: Search query (show name)
language: Language for results (default: German)
page: Page number for pagination
Returns:
Search results with list of shows
Example:
>>> results = await client.search_tv_show("Attack on Titan")
>>> shows = results["results"]
"""
return await self._request(
"search/tv",
{"query": query, "language": language, "page": page}
)
async def get_tv_show_details(
self,
tv_id: int,
language: str = "de-DE",
append_to_response: Optional[str] = None
) -> Dict[str, Any]:
"""Get detailed information about a TV show.
Args:
tv_id: TMDB TV show ID
language: Language for metadata
append_to_response: Additional data to include (e.g., "credits,images")
Returns:
TV show details including metadata, cast, etc.
"""
params = {"language": language}
if append_to_response:
params["append_to_response"] = append_to_response
return await self._request(f"tv/{tv_id}", params)
async def get_tv_show_external_ids(self, tv_id: int) -> Dict[str, Any]:
"""Get external IDs (IMDB, TVDB) for a TV show.
Args:
tv_id: TMDB TV show ID
Returns:
Dictionary with external IDs (imdb_id, tvdb_id, etc.)
"""
return await self._request(f"tv/{tv_id}/external_ids")
async def get_tv_show_images(
self,
tv_id: int,
language: Optional[str] = None
) -> Dict[str, Any]:
"""Get images (posters, backdrops, logos) for a TV show.
Args:
tv_id: TMDB TV show ID
language: Language filter for images (None = all languages)
Returns:
Dictionary with poster, backdrop, and logo lists
"""
params = {}
if language:
params["language"] = language
return await self._request(f"tv/{tv_id}/images", params)
async def download_image(
self,
image_path: str,
local_path: Path,
size: str = "original"
) -> None:
"""Download an image from TMDB.
Args:
image_path: Image path from TMDB API (e.g., "/abc123.jpg")
local_path: Local file path to save image
size: Image size (w500, original, etc.)
Raises:
TMDBAPIError: If download fails
"""
await self._ensure_session()
url = f"{self.image_base_url}/{size}{image_path}"
try:
logger.debug(f"Downloading image from {url}")
async with self.session.get(url, timeout=aiohttp.ClientTimeout(total=60)) as resp:
resp.raise_for_status()
# Ensure parent directory exists
local_path.parent.mkdir(parents=True, exist_ok=True)
# Write image data
with open(local_path, "wb") as f:
f.write(await resp.read())
logger.info(f"Downloaded image to {local_path}")
except aiohttp.ClientError as e:
raise TMDBAPIError(f"Failed to download image: {e}")
def get_image_url(self, image_path: str, size: str = "original") -> str:
"""Get full URL for an image.
Args:
image_path: Image path from TMDB API
size: Image size (w500, original, etc.)
Returns:
Full image URL
"""
return f"{self.image_base_url}/{size}{image_path}"
async def close(self):
"""Close the aiohttp session and clean up resources."""
if self.session and not self.session.closed:
await self.session.close()
logger.debug("TMDB client session closed")
def clear_cache(self):
"""Clear the request cache."""
self._cache.clear()
logger.debug("TMDB client cache cleared")