336 lines
17 KiB
Python
Executable File
336 lines
17 KiB
Python
Executable File
from flask import Blueprint, Response, request, jsonify
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import os
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import json
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import traceback
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import logging # Added logging import
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import uuid # For generating error task IDs
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import time # For timestamps
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from routes.utils.celery_queue_manager import download_queue_manager
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from routes.utils.celery_tasks import store_task_info, store_task_status, ProgressState # For error task creation
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import threading # For playlist watch trigger
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# Imports from playlist_watch.py
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from routes.utils.watch.db import (
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add_playlist_to_watch as add_playlist_db,
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remove_playlist_from_watch as remove_playlist_db,
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get_watched_playlist,
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get_watched_playlists,
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add_specific_tracks_to_playlist_table,
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remove_specific_tracks_from_playlist_table,
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is_track_in_playlist_db # Added import
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)
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from routes.utils.get_info import get_spotify_info # Already used, but ensure it's here
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from routes.utils.watch.manager import check_watched_playlists # For manual trigger
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logger = logging.getLogger(__name__) # Added logger initialization
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playlist_bp = Blueprint('playlist', __name__, url_prefix='/api/playlist')
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@playlist_bp.route('/download/<playlist_id>', methods=['GET'])
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def handle_download(playlist_id):
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# Retrieve essential parameters from the request.
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# name = request.args.get('name') # Removed
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# artist = request.args.get('artist') # Removed
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orig_params = request.args.to_dict()
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# Construct the URL from playlist_id
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url = f"https://open.spotify.com/playlist/{playlist_id}"
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orig_params["original_url"] = request.url # Update original_url to the constructed one
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# Fetch metadata from Spotify
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try:
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playlist_info = get_spotify_info(playlist_id, "playlist")
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if not playlist_info or not playlist_info.get('name') or not playlist_info.get('owner'):
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return Response(
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json.dumps({"error": f"Could not retrieve metadata for playlist ID: {playlist_id}"}),
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status=404,
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mimetype='application/json'
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)
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name_from_spotify = playlist_info.get('name')
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# Use owner's display_name as the 'artist' for playlists
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owner_info = playlist_info.get('owner', {})
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artist_from_spotify = owner_info.get('display_name', "Unknown Owner")
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except Exception as e:
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return Response(
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json.dumps({"error": f"Failed to fetch metadata for playlist {playlist_id}: {str(e)}"}),
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status=500,
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mimetype='application/json'
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)
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# Validate required parameters
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if not url: # This check might be redundant now but kept for safety
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return Response(
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json.dumps({"error": "Missing required parameter: url"}),
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status=400,
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mimetype='application/json'
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)
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try:
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task_id = download_queue_manager.add_task({
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"download_type": "playlist",
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"url": url,
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"name": name_from_spotify, # Use fetched name
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"artist": artist_from_spotify, # Use fetched owner name as artist
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"orig_request": orig_params
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})
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# Removed DuplicateDownloadError handling, add_task now manages this by creating an error task.
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except Exception as e:
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# Generic error handling for other issues during task submission
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error_task_id = str(uuid.uuid4())
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store_task_info(error_task_id, {
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"download_type": "playlist",
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"url": url,
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"name": name_from_spotify, # Use fetched name
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"artist": artist_from_spotify, # Use fetched owner name as artist
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"original_request": orig_params,
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"created_at": time.time(),
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"is_submission_error_task": True
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})
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store_task_status(error_task_id, {
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"status": ProgressState.ERROR,
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"error": f"Failed to queue playlist download: {str(e)}",
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"timestamp": time.time()
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})
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return Response(
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json.dumps({"error": f"Failed to queue playlist download: {str(e)}", "task_id": error_task_id}),
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status=500,
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mimetype='application/json'
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)
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return Response(
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json.dumps({"prg_file": task_id}), # prg_file is the old name for task_id
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status=202,
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mimetype='application/json'
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)
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@playlist_bp.route('/download/cancel', methods=['GET'])
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def cancel_download():
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"""
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Cancel a running playlist download process by its prg file name.
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"""
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prg_file = request.args.get('prg_file')
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if not prg_file:
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return Response(
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json.dumps({"error": "Missing process id (prg_file) parameter"}),
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status=400,
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mimetype='application/json'
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)
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# Use the queue manager's cancellation method.
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result = download_queue_manager.cancel_task(prg_file)
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status_code = 200 if result.get("status") == "cancelled" else 404
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return Response(
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json.dumps(result),
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status=status_code,
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mimetype='application/json'
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)
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@playlist_bp.route('/info', methods=['GET'])
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def get_playlist_info():
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"""
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Retrieve Spotify playlist metadata given a Spotify playlist ID.
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Expects a query parameter 'id' that contains the Spotify playlist ID.
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"""
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spotify_id = request.args.get('id')
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if not spotify_id:
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return Response(
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json.dumps({"error": "Missing parameter: id"}),
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status=400,
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mimetype='application/json'
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)
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try:
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# Import and use the get_spotify_info function from the utility module.
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playlist_info = get_spotify_info(spotify_id, "playlist")
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# If playlist_info is successfully fetched, check if it's watched
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# and augment track items with is_locally_known status
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if playlist_info and playlist_info.get('id'):
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watched_playlist_details = get_watched_playlist(playlist_info['id'])
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if watched_playlist_details: # Playlist is being watched
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if playlist_info.get('tracks') and playlist_info['tracks'].get('items'):
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for item in playlist_info['tracks']['items']:
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if item and item.get('track') and item['track'].get('id'):
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track_id = item['track']['id']
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item['track']['is_locally_known'] = is_track_in_playlist_db(playlist_info['id'], track_id)
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elif item and item.get('track'): # Track object exists but no ID
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item['track']['is_locally_known'] = False
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# If not watched, or no tracks, is_locally_known will not be added, or tracks won't exist to add it to.
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# Frontend should handle absence of this key as false.
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return Response(
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json.dumps(playlist_info),
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status=200,
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mimetype='application/json'
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)
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except Exception as e:
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error_data = {
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"error": str(e),
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"traceback": traceback.format_exc()
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}
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return Response(
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json.dumps(error_data),
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status=500,
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mimetype='application/json'
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)
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@playlist_bp.route('/watch/<string:playlist_spotify_id>', methods=['PUT'])
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def add_to_watchlist(playlist_spotify_id):
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"""Adds a playlist to the watchlist."""
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logger.info(f"Attempting to add playlist {playlist_spotify_id} to watchlist.")
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try:
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# Check if already watched
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if get_watched_playlist(playlist_spotify_id):
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return jsonify({"message": f"Playlist {playlist_spotify_id} is already being watched."}), 200
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# Fetch playlist details from Spotify to populate our DB
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playlist_data = get_spotify_info(playlist_spotify_id, "playlist")
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if not playlist_data or 'id' not in playlist_data:
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logger.error(f"Could not fetch details for playlist {playlist_spotify_id} from Spotify.")
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return jsonify({"error": f"Could not fetch details for playlist {playlist_spotify_id} from Spotify."}), 404
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add_playlist_db(playlist_data) # This also creates the tracks table
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# REMOVED: Do not add initial tracks directly to DB.
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# The playlist watch manager will pick them up as new and queue downloads.
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# Tracks will be added to DB only after successful download via Celery task callback.
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# initial_track_items = playlist_data.get('tracks', {}).get('items', [])
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# if initial_track_items:
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# from routes.utils.watch.db import add_tracks_to_playlist_db # Keep local import for clarity
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# add_tracks_to_playlist_db(playlist_spotify_id, initial_track_items)
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logger.info(f"Playlist {playlist_spotify_id} added to watchlist. Its tracks will be processed by the watch manager.")
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return jsonify({"message": f"Playlist {playlist_spotify_id} added to watchlist. Tracks will be processed shortly."}), 201
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except Exception as e:
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logger.error(f"Error adding playlist {playlist_spotify_id} to watchlist: {e}", exc_info=True)
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return jsonify({"error": f"Could not add playlist to watchlist: {str(e)}"}), 500
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@playlist_bp.route('/watch/<string:playlist_spotify_id>/status', methods=['GET'])
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def get_playlist_watch_status(playlist_spotify_id):
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"""Checks if a specific playlist is being watched."""
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logger.info(f"Checking watch status for playlist {playlist_spotify_id}.")
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try:
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playlist = get_watched_playlist(playlist_spotify_id)
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if playlist:
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return jsonify({"is_watched": True, "playlist_data": playlist}), 200
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else:
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# Return 200 with is_watched: false, so frontend can clearly distinguish
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# between "not watched" and an actual error fetching status.
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return jsonify({"is_watched": False}), 200
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except Exception as e:
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logger.error(f"Error checking watch status for playlist {playlist_spotify_id}: {e}", exc_info=True)
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return jsonify({"error": f"Could not check watch status: {str(e)}"}), 500
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@playlist_bp.route('/watch/<string:playlist_spotify_id>', methods=['DELETE'])
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def remove_from_watchlist(playlist_spotify_id):
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"""Removes a playlist from the watchlist."""
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logger.info(f"Attempting to remove playlist {playlist_spotify_id} from watchlist.")
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try:
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if not get_watched_playlist(playlist_spotify_id):
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return jsonify({"error": f"Playlist {playlist_spotify_id} not found in watchlist."}), 404
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remove_playlist_db(playlist_spotify_id)
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logger.info(f"Playlist {playlist_spotify_id} removed from watchlist successfully.")
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return jsonify({"message": f"Playlist {playlist_spotify_id} removed from watchlist."}), 200
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except Exception as e:
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logger.error(f"Error removing playlist {playlist_spotify_id} from watchlist: {e}", exc_info=True)
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return jsonify({"error": f"Could not remove playlist from watchlist: {str(e)}"}), 500
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@playlist_bp.route('/watch/<string:playlist_spotify_id>/tracks', methods=['POST'])
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def mark_tracks_as_known(playlist_spotify_id):
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"""Fetches details for given track IDs and adds/updates them in the playlist's local DB table."""
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logger.info(f"Attempting to mark tracks as known for playlist {playlist_spotify_id}.")
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try:
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track_ids = request.json
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if not isinstance(track_ids, list) or not all(isinstance(tid, str) for tid in track_ids):
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return jsonify({"error": "Invalid request body. Expecting a JSON array of track Spotify IDs."}), 400
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if not get_watched_playlist(playlist_spotify_id):
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return jsonify({"error": f"Playlist {playlist_spotify_id} is not being watched."}), 404
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fetched_tracks_details = []
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for track_id in track_ids:
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try:
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track_detail = get_spotify_info(track_id, "track")
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if track_detail and track_detail.get('id'):
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fetched_tracks_details.append(track_detail)
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else:
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logger.warning(f"Could not fetch details for track {track_id} when marking as known for playlist {playlist_spotify_id}.")
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except Exception as e:
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logger.error(f"Failed to fetch Spotify details for track {track_id}: {e}")
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if not fetched_tracks_details:
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return jsonify({"message": "No valid track details could be fetched to mark as known.", "processed_count": 0}), 200
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add_specific_tracks_to_playlist_table(playlist_spotify_id, fetched_tracks_details)
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logger.info(f"Successfully marked/updated {len(fetched_tracks_details)} tracks as known for playlist {playlist_spotify_id}.")
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return jsonify({"message": f"Successfully processed {len(fetched_tracks_details)} tracks for playlist {playlist_spotify_id}."}), 200
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except Exception as e:
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logger.error(f"Error marking tracks as known for playlist {playlist_spotify_id}: {e}", exc_info=True)
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return jsonify({"error": f"Could not mark tracks as known: {str(e)}"}), 500
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@playlist_bp.route('/watch/<string:playlist_spotify_id>/tracks', methods=['DELETE'])
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def mark_tracks_as_missing_locally(playlist_spotify_id):
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"""Removes specified tracks from the playlist's local DB table."""
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logger.info(f"Attempting to mark tracks as missing (delete locally) for playlist {playlist_spotify_id}.")
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try:
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track_ids = request.json
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if not isinstance(track_ids, list) or not all(isinstance(tid, str) for tid in track_ids):
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return jsonify({"error": "Invalid request body. Expecting a JSON array of track Spotify IDs."}), 400
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if not get_watched_playlist(playlist_spotify_id):
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return jsonify({"error": f"Playlist {playlist_spotify_id} is not being watched."}), 404
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deleted_count = remove_specific_tracks_from_playlist_table(playlist_spotify_id, track_ids)
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logger.info(f"Successfully removed {deleted_count} tracks locally for playlist {playlist_spotify_id}.")
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return jsonify({"message": f"Successfully removed {deleted_count} tracks locally for playlist {playlist_spotify_id}."}), 200
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except Exception as e:
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logger.error(f"Error marking tracks as missing (deleting locally) for playlist {playlist_spotify_id}: {e}", exc_info=True)
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return jsonify({"error": f"Could not mark tracks as missing: {str(e)}"}), 500
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@playlist_bp.route('/watch/list', methods=['GET'])
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def list_watched_playlists_endpoint():
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"""Lists all playlists currently in the watchlist."""
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try:
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playlists = get_watched_playlists()
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return jsonify(playlists), 200
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except Exception as e:
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logger.error(f"Error listing watched playlists: {e}", exc_info=True)
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return jsonify({"error": f"Could not list watched playlists: {str(e)}"}), 500
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@playlist_bp.route('/watch/trigger_check', methods=['POST'])
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def trigger_playlist_check_endpoint():
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"""Manually triggers the playlist checking mechanism for all watched playlists."""
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logger.info("Manual trigger for playlist check received for all playlists.")
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try:
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# Run check_watched_playlists without an ID to check all
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thread = threading.Thread(target=check_watched_playlists, args=(None,))
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thread.start()
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return jsonify({"message": "Playlist check triggered successfully in the background for all playlists."}), 202
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except Exception as e:
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logger.error(f"Error manually triggering playlist check for all: {e}", exc_info=True)
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return jsonify({"error": f"Could not trigger playlist check for all: {str(e)}"}), 500
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@playlist_bp.route('/watch/trigger_check/<string:playlist_spotify_id>', methods=['POST'])
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def trigger_specific_playlist_check_endpoint(playlist_spotify_id: str):
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"""Manually triggers the playlist checking mechanism for a specific playlist."""
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logger.info(f"Manual trigger for specific playlist check received for ID: {playlist_spotify_id}")
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try:
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# Check if the playlist is actually in the watchlist first
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watched_playlist = get_watched_playlist(playlist_spotify_id)
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if not watched_playlist:
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logger.warning(f"Trigger specific check: Playlist ID {playlist_spotify_id} not found in watchlist.")
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return jsonify({"error": f"Playlist {playlist_spotify_id} is not in the watchlist. Add it first."}), 404
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# Run check_watched_playlists with the specific ID
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thread = threading.Thread(target=check_watched_playlists, args=(playlist_spotify_id,))
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thread.start()
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logger.info(f"Playlist check triggered in background for specific playlist ID: {playlist_spotify_id}")
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return jsonify({"message": f"Playlist check triggered successfully in the background for {playlist_spotify_id}."}), 202
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except Exception as e:
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logger.error(f"Error manually triggering specific playlist check for {playlist_spotify_id}: {e}", exc_info=True)
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return jsonify({"error": f"Could not trigger playlist check for {playlist_spotify_id}: {str(e)}"}), 500
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