dd788db786
- New modern audio wave 'A' logo (192x192 and 512x512 icons) - PWA service worker for offline support and installability - Wake Lock API for background audio on FiiO/Android devices - Visibility change handling to prevent audio pause on screen off - Updated manifest.json with music categories and proper PWA config - Media Session API lock screen controls (already present) - Renamed app to 'Audiophile Web Player'
88 lines
3 KiB
Python
88 lines
3 KiB
Python
import json
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import uuid
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from pathlib import Path
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from typing import List, Dict, Optional
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DATA_FILE = Path("backend/data/user_playlists.json")
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class PlaylistManager:
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def __init__(self):
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DATA_FILE.parent.mkdir(parents=True, exist_ok=True)
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if not DATA_FILE.exists():
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self._save_data([])
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def _load_data(self) -> List[Dict]:
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try:
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with open(DATA_FILE, "r") as f:
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return json.load(f)
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except (json.JSONDecodeError, OSError):
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return []
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def _save_data(self, data: List[Dict]):
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with open(DATA_FILE, "w") as f:
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json.dump(data, f, indent=4)
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def get_all(self) -> List[Dict]:
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return self._load_data()
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def get_by_id(self, playlist_id: str) -> Optional[Dict]:
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playlists = self._load_data()
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for p in playlists:
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if p["id"] == playlist_id:
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return p
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return None
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def create(self, name: str, description: str = "") -> Dict:
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playlists = self._load_data()
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new_playlist = {
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"id": str(uuid.uuid4()),
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"title": name,
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"description": description,
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"tracks": [],
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"cover_url": "https://placehold.co/400?text=Playlist", # Default placeholder
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"is_user_created": True
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}
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playlists.append(new_playlist)
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self._save_data(playlists)
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return new_playlist
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def update(self, playlist_id: str, name: str = None, description: str = None) -> Optional[Dict]:
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playlists = self._load_data()
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for p in playlists:
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if p["id"] == playlist_id:
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if name: p["title"] = name
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if description: p["description"] = description
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self._save_data(playlists)
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return p
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return None
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def delete(self, playlist_id: str) -> bool:
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playlists = self._load_data()
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initial_len = len(playlists)
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playlists = [p for p in playlists if p["id"] != playlist_id]
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if len(playlists) < initial_len:
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self._save_data(playlists)
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return True
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return False
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def add_track(self, playlist_id: str, track: Dict) -> bool:
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playlists = self._load_data()
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for p in playlists:
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if p["id"] == playlist_id:
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# Check for duplicates? For now allow.
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p["tracks"].append(track)
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# Update cover if it's the first track
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if len(p["tracks"]) == 1 and track.get("cover_url"):
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p["cover_url"] = track["cover_url"]
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self._save_data(playlists)
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return True
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return False
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def remove_track(self, playlist_id: str, track_id: str) -> bool:
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playlists = self._load_data()
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for p in playlists:
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if p["id"] == playlist_id:
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p["tracks"] = [t for t in p["tracks"] if t.get("id") != track_id]
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self._save_data(playlists)
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return True
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return False
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