feat: Add favorites management system with full API endpoints

Implement a comprehensive favorites system for anime tracking with the following features:
- Add/remove anime from favorites with unique anime_id
- Toggle favorite status (add if not exists, remove if exists)
- List favorites with sorting (title, rating, year, created_at, updated_at)
- Filter favorites by provider and genre
- Get detailed statistics (total count, provider breakdown, genre distribution, top-rated)
- Persistent storage using JSON file (favorites.json)
- Full REST API with 6 endpoints

API Endpoints:
- GET /api/favorites - List all favorites with sorting/filtering
- POST /api/favorites - Add anime to favorites
- DELETE /api/favorites/{anime_id} - Remove from favorites
- GET /api/favorites/{anime_id} - Get specific favorite details
- GET /api/favorites/stats - Get favorites statistics
- POST /api/favorites/toggle - Toggle favorite status

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
This commit is contained in:
root
2026-01-23 10:06:20 +00:00
parent 6168e9ed60
commit d2e1bd8ab0
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"""
Favorites management system for Ohm Stream Downloader
Stores user's favorite anime with metadata in a local JSON file
"""
import json
import asyncio
from pathlib import Path
from typing import List, Dict, Optional
from datetime import datetime
import aiofiles
class FavoritesManager:
"""Manages user's favorite anime list"""
def __init__(self, storage_path: str = "data/favorites.json"):
self.storage_path = Path(storage_path)
self.storage_path.parent.mkdir(parents=True, exist_ok=True)
self._favorites: Dict[str, Dict] = {}
self._lock = asyncio.Lock()
async def _load(self):
"""Load favorites from disk"""
async with self._lock:
if self.storage_path.exists():
try:
async with aiofiles.open(self.storage_path, 'r', encoding='utf-8') as f:
content = await f.read()
self._favorites = json.loads(content) if content.strip() else {}
except Exception as e:
print(f"Error loading favorites: {e}")
self._favorites = {}
else:
self._favorites = {}
async def _save(self):
"""Save favorites to disk"""
async with self._lock:
try:
async with aiofiles.open(self.storage_path, 'w', encoding='utf-8') as f:
await f.write(json.dumps(self._favorites, indent=2, ensure_ascii=False))
except Exception as e:
print(f"Error saving favorites: {e}")
async def add_favorite(
self,
anime_id: str,
title: str,
url: str,
provider: str,
metadata: Optional[Dict] = None,
poster_url: Optional[str] = None
) -> Dict:
"""Add an anime to favorites"""
await self._load()
if anime_id in self._favorites:
# Update existing favorite
self._favorites[anime_id]["updated_at"] = datetime.now().isoformat()
if metadata:
self._favorites[anime_id]["metadata"] = metadata
if poster_url:
self._favorites[anime_id]["poster_url"] = poster_url
else:
# Add new favorite
self._favorites[anime_id] = {
"id": anime_id,
"title": title,
"url": url,
"provider": provider,
"metadata": metadata or {},
"poster_url": poster_url,
"created_at": datetime.now().isoformat(),
"updated_at": datetime.now().isoformat()
}
await self._save()
return self._favorites[anime_id]
async def remove_favorite(self, anime_id: str) -> bool:
"""Remove an anime from favorites"""
await self._load()
if anime_id in self._favorites:
del self._favorites[anime_id]
await self._save()
return True
return False
async def get_favorite(self, anime_id: str) -> Optional[Dict]:
"""Get a specific favorite by ID"""
await self._load()
return self._favorites.get(anime_id)
async def list_favorites(
self,
sort_by: str = "created_at",
order: str = "desc",
filter_provider: Optional[str] = None,
filter_genre: Optional[str] = None
) -> List[Dict]:
"""List all favorites with optional sorting and filtering"""
await self._load()
favorites = list(self._favorites.values())
# Apply filters
if filter_provider:
favorites = [f for f in favorites if f["provider"] == filter_provider]
if filter_genre:
favorites = [
f for f in favorites
if filter_genre in f.get("metadata", {}).get("genres", [])
]
# Sort favorites
reverse = order == "desc"
if sort_by == "title":
favorites.sort(key=lambda x: x["title"].lower(), reverse=reverse)
elif sort_by == "rating":
favorites.sort(
key=lambda x: float(x.get("metadata", {}).get("rating", "0").split("/")[0]),
reverse=reverse
)
elif sort_by == "year":
favorites.sort(
key=lambda x: x.get("metadata", {}).get("release_year", 0),
reverse=reverse
)
else: # created_at, updated_at
favorites.sort(key=lambda x: x.get(sort_by, ""), reverse=reverse)
return favorites
async def is_favorite(self, anime_id: str) -> bool:
"""Check if an anime is in favorites"""
await self._load()
return anime_id in self._favorites
async def toggle_favorite(
self,
anime_id: str,
title: str,
url: str,
provider: str,
metadata: Optional[Dict] = None,
poster_url: Optional[str] = None
) -> Dict:
"""Toggle an anime in favorites (add if not exists, remove if exists)"""
is_fav = await self.is_favorite(anime_id)
if is_fav:
await self.remove_favorite(anime_id)
return {"action": "removed", "anime_id": anime_id}
else:
fav = await self.add_favorite(anime_id, title, url, provider, metadata, poster_url)
return {"action": "added", "anime_id": anime_id, "favorite": fav}
async def get_stats(self) -> Dict:
"""Get statistics about favorites"""
await self._load()
total = len(self._favorites)
# Count by provider
by_provider = {}
for fav in self._favorites.values():
provider = fav["provider"]
by_provider[provider] = by_provider.get(provider, 0) + 1
# Count by genre
by_genre = {}
for fav in self._favorites.values():
for genre in fav.get("metadata", {}).get("genres", []):
by_genre[genre] = by_genre.get(genre, 0) + 1
return {
"total": total,
"by_provider": by_provider,
"by_genre": by_genre
}
# Global favorites manager instance
_favorites_manager: Optional[FavoritesManager] = None
def get_favorites_manager() -> FavoritesManager:
"""Get the global favorites manager instance"""
global _favorites_manager
if _favorites_manager is None:
_favorites_manager = FavoritesManager()
return _favorites_manager