v2.5

README.md

@@ -6,7 +6,7 @@
 <b>SpotiFLAC</b> allows you to download Spotify tracks in true FLAC format through services like Tidal, Amazon Music and Deezer with the help of Lucida.
 </div>
 
-### [Download](https://github.com/afkarxyz/SpotiFLAC/releases/download/v2.2/SpotiFLAC.exe)
+### [Download](https://github.com/afkarxyz/SpotiFLAC/releases/download/v2.4/SpotiFLAC.exe)
 
 #
 
@@ -15,12 +15,14 @@ Sometimes, the **download speed** from Lucida can be fast or slow; it varies unp
 
 ## Screenshots
 
-![image](https://github.com/user-attachments/assets/7fa82a25-0fe8-4b87-ba5c-2dd5933f211b)
+![image](https://github.com/user-attachments/assets/611b8b52-6615-44fe-b6f8-905c07801c47)
 
 ![image](https://github.com/user-attachments/assets/81e65977-11f0-4162-96f3-90730dd87e74)
 
 ![image](https://github.com/user-attachments/assets/4dd37c0a-30e3-479a-9b3d-57fd360d87b3)
 
+![image](https://github.com/user-attachments/assets/66f1ae70-e049-4b4c-ba81-1df5054d0e7d)
+
 ![image](https://github.com/user-attachments/assets/04954db9-e94a-4f9d-8eac-46d7ff7a4c33)
 
 > When **Fallback** is enabled, it will use the backup server `Lucida.su`

SpotiFLAC.py

@@ -29,6 +29,26 @@ class Track:
     duration_ms: int
     id: str
 
+class MetadataFetchWorker(QThread):
+    finished = pyqtSignal(dict)
+    error = pyqtSignal(str)
+    
+    def __init__(self, url):
+        super().__init__()
+        self.url = url
+        
+    def run(self):
+        try:
+            metadata = get_filtered_data(self.url)
+            if "error" in metadata:
+                self.error.emit(metadata["error"])
+            else:
+                self.finished.emit(metadata)
+        except SpotifyInvalidUrlException as e:
+            self.error.emit(str(e))
+        except Exception as e:
+            self.error.emit(f'Failed to fetch metadata: {str(e)}')
+
 class DownloadWorker(QThread):
     finished = pyqtSignal(bool, str, list)
     progress = pyqtSignal(str, int)
@@ -66,13 +86,14 @@ class DownloadWorker(QThread):
             def progress_update(current, total):
                 if total > 0:
                     percent = (current / total) * 100
-                    self.progress.emit(f"Download progress: {percent:.2f}% ({current}/{total})", 
+                    current_mb = current / (1024 * 1024)
+                    total_mb = total / (1024 * 1024)
+                    self.progress.emit(f"Download progress: {percent:.2f}% ({current_mb:.2f}MB/{total_mb:.2f}MB)", 
                                     int(percent))
                 else:
                     self.progress.emit(f"Processing metadata...", 0)
             
             downloader.set_progress_callback(progress_update)
-            downloader.set_filename_format(self.filename_format)
             
             total_tracks = len(self.tracks)
             
@@ -102,7 +123,16 @@ class DownloadWorker(QThread):
                     metadata = asyncio.run(downloader.get_track_info(track_id, self.service))
                     
                     self.progress.emit(f"Track info received, starting download process", 0)
-                    downloaded_file = downloader.download(metadata, track_outpath)
+                    
+                    is_paused_callback = lambda: self.is_paused
+                    is_stopped_callback = lambda: self.is_stopped
+                    
+                    downloaded_file = downloader.download(
+                        metadata, 
+                        track_outpath,
+                        is_paused_callback=is_paused_callback,
+                        is_stopped_callback=is_stopped_callback
+                    )
                     
                     if (self.is_album or (self.is_playlist and self.use_album_subfolders)) and self.use_track_numbers:
                         new_filename = f"{track.track_number:02d} - {self.get_formatted_filename(track)}"
@@ -300,7 +330,7 @@ class ServiceComboBox(QComboBox):
 class SpotiFLACGUI(QWidget):
     def __init__(self):
         super().__init__()
-        self.current_version = "2.2"
+        self.current_version = "2.5"
         self.tracks = []
         self.reset_state()
         
@@ -719,7 +749,7 @@ class SpotiFLACGUI(QWidget):
                 spacer = QSpacerItem(20, 6, QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Fixed)
                 about_layout.addItem(spacer)
 
-        footer_label = QLabel("v2.2 | March 2025")
+        footer_label = QLabel("v2.5 | April 2025")
         footer_label.setStyleSheet("font-size: 12px; color: palette(text); margin-top: 10px;")
         about_layout.addWidget(footer_label, alignment=Qt.AlignmentFlag.AlignCenter)
 
@@ -778,11 +808,20 @@ class SpotiFLACGUI(QWidget):
             self.reset_state()
             self.reset_ui()
             
-            metadata = get_filtered_data(url)
-            if "error" in metadata:
-                raise Exception(metadata["error"])
-                
-            url_info = parse_uri(url)
+            self.log_output.append('Just a moment. Fetching metadata...')
+            self.tab_widget.setCurrentWidget(self.process_tab)
+            
+            self.metadata_worker = MetadataFetchWorker(url)
+            self.metadata_worker.finished.connect(self.on_metadata_fetched)
+            self.metadata_worker.error.connect(self.on_metadata_error)
+            self.metadata_worker.start()
+            
+        except Exception as e:
+            self.log_output.append(f'Error: Failed to start metadata fetch: {str(e)}')
+    
+    def on_metadata_fetched(self, metadata):
+        try:
+            url_info = parse_uri(self.spotify_url.text().strip())
             
             if url_info["type"] == "track":
                 self.handle_track_metadata(metadata["track"])
@@ -793,11 +832,11 @@ class SpotiFLACGUI(QWidget):
                 
             self.update_button_states()
             self.tab_widget.setCurrentIndex(0)
-            
-        except SpotifyInvalidUrlException as e:
-            self.log_output.append(f'Error: {str(e)}')
         except Exception as e:
-            self.log_output.append(f'Error: Failed to fetch metadata: {str(e)}')
+            self.log_output.append(f'Error: {str(e)}')
+    
+    def on_metadata_error(self, error_message):
+        self.log_output.append(f'Error: {error_message}')
 
     def handle_track_metadata(self, track_data):
         track_id = track_data["external_urls"].split("/")[-1]
@@ -911,10 +950,21 @@ class SpotiFLACGUI(QWidget):
             self.followers_label.hide()
         
         if metadata.get('releaseDate'):
-            release_date = datetime.strptime(metadata['releaseDate'], "%Y-%m-%d")
-            formatted_date = release_date.strftime("%d-%m-%Y")
-            self.release_date_label.setText(f"<b>Released</b> {formatted_date}")
-            self.release_date_label.show()
+            try:
+                release_date = metadata['releaseDate']
+                if len(release_date) == 4:
+                    date_obj = datetime.strptime(release_date, "%Y")
+                elif len(release_date) == 7:
+                    date_obj = datetime.strptime(release_date, "%Y-%m")
+                else:
+                    date_obj = datetime.strptime(release_date, "%Y-%m-%d")
+                
+                formatted_date = date_obj.strftime("%d-%m-%Y")
+                self.release_date_label.setText(f"<b>Released</b> {formatted_date}")
+                self.release_date_label.show()
+            except ValueError:
+                self.release_date_label.setText(f"<b>Released</b> {metadata['releaseDate']}")
+                self.release_date_label.show()
         else:
             self.release_date_label.hide()
         
@@ -1044,8 +1094,27 @@ class SpotiFLACGUI(QWidget):
         self.tab_widget.setCurrentWidget(self.process_tab)
 
     def update_progress(self, message, percentage):
-        self.log_output.append(message)
-        self.log_output.moveCursor(QTextCursor.MoveOperation.End)
+        if "Download progress:" in message or "Processing metadata..." in message:
+            current_text = self.log_output.toPlainText()
+            
+            if current_text:
+                lines = current_text.split('\n')
+                
+                if "Download progress:" in lines[-1] or "Processing metadata..." in lines[-1]:
+                    lines[-1] = message
+                    
+                    new_text = '\n'.join(lines)
+                    
+                    self.log_output.setPlainText(new_text)
+                    
+                    self.log_output.moveCursor(QTextCursor.MoveOperation.End)
+                else:
+                    self.log_output.append(message)
+            else:
+                self.log_output.append(message)
+        else:
+            self.log_output.append(message)
+        
         if percentage > 0:
             self.progress_bar.setValue(percentage)
 

getMetadata.py

@@ -5,7 +5,7 @@ import json
 import hmac
 import time
 import hashlib
-from typing import Tuple, Callable
+from typing import Tuple, Callable, Dict, Any, List
 
 _TOTP_SECRET = bytearray([53,53,48,55,49,52,53,56,53,51,52,56,55,52,57,57,53,57,50,50,52,56,54,51,48,51,50,57,51,52,55])
 
@@ -100,9 +100,7 @@ def get_json_from_api(api_url, access_token):
         
     return req.json()
 
-def get_raw_spotify_data(spotify_url):
-    url_info = parse_uri(spotify_url)
-    
+def get_access_token():
     try:
         totp, timestamp = generate_totp()
         
@@ -117,34 +115,116 @@ def get_raw_spotify_data(spotify_url):
         req = requests.get(token_url, headers=headers, params=params, timeout=10)
         if req.status_code != 200:
             return {"error": f"Failed to get access token. Status code: {req.status_code}"}
-        token = req.json()
+        return req.json()
     except Exception as e:
         return {"error": f"Failed to get access token: {str(e)}"}
+
+def fetch_tracks_in_batches(url: str, access_token: str, batch_size: int = 100, delay: float = 1.0) -> Tuple[List[Dict[str, Any]], int]:
+    all_tracks = []
+    current_batch = 0
     
+    while url:
+        print(f"Batch : {current_batch}")
+        
+        url_parts = url.split("offset=")
+        if len(url_parts) > 1:
+            offset_part = url_parts[1].split("&")[0]
+            print(f"Offset : {offset_part}")
+        print("-------------")
+        
+        track_data = get_json_from_api(url, access_token)
+        if not track_data:
+            break
+        
+        items = track_data.get('items', [])
+        all_tracks.extend(items)
+        
+        url = track_data.get('next')
+        if url and "&locale=" in url:
+            url = url.split("&locale=")[0]
+            
+        if url and delay > 0:
+            sleep(delay)
+        
+        current_batch += 1
+        
+    return all_tracks, current_batch
+
+def get_raw_spotify_data(spotify_url, batch: bool = False, delay: float = 1.0):
+    url_info = parse_uri(spotify_url)
+    token = get_access_token()
+    
+    if "error" in token:
+        return token
+    
+    access_token = token["accessToken"]
     raw_data = {}
     
     if url_info['type'] == "playlist":
         try:
             playlist_data = get_json_from_api(
                 playlist_base_url.format(url_info["id"]), 
-                token["accessToken"]
+                access_token
             )
             if not playlist_data:
                 return {"error": "Failed to get playlist data"}
                 
             raw_data = playlist_data
+            total_tracks = playlist_data.get('tracks', {}).get('total', 0)
             
-            tracks = []
-            tracks_url = f'https://api.spotify.com/v1/playlists/{url_info["id"]}/tracks?limit=100'
-            while tracks_url:
-                track_data = get_json_from_api(tracks_url, token["accessToken"])
-                if not track_data:
-                    break
-                    
-                tracks.extend(track_data['items'])
-                tracks_url = track_data.get('next')
+            if batch:
+                tracks_url = f'https://api.spotify.com/v1/playlists/{url_info["id"]}/tracks?limit=100'
+                tracks, num_batches = fetch_tracks_in_batches(tracks_url, access_token, 100, delay)
+                raw_data['tracks']['items'] = tracks
+                raw_data['_batch_count'] = num_batches
+                raw_data['_batch_enabled'] = True
+                
+                if len(tracks) < total_tracks:
+                    last_offset = len(tracks)
+                    remaining_tracks = []
+                    
+                    while last_offset < total_tracks:
+                        print(f"Batch : {num_batches}")
+                        print(f"Offset : {last_offset}")
+                        print("-------------")
+                        
+                        remainder_url = f'https://api.spotify.com/v1/playlists/{url_info["id"]}/tracks?offset={last_offset}&limit=100'
+                        track_data = get_json_from_api(remainder_url, access_token)
+                        
+                        if not track_data or not track_data.get('items'):
+                            break
+                            
+                        items = track_data.get('items', [])
+                        remaining_tracks.extend(items)
+                        
+                        if len(items) < 100:
+                            break
+                            
+                        last_offset += len(items)
+                        num_batches += 1
+                        
+                        if delay > 0:
+                            sleep(delay)
+                    
+                    tracks.extend(remaining_tracks)
+                    raw_data['tracks']['items'] = tracks
+                    raw_data['_batch_count'] = num_batches
+            else:
+                tracks = []
+                tracks_url = f'https://api.spotify.com/v1/playlists/{url_info["id"]}/tracks?limit=100'
+                while tracks_url:
+                    track_data = get_json_from_api(tracks_url, access_token)
+                    if not track_data:
+                        break
+                        
+                    tracks.extend(track_data['items'])
+                    tracks_url = track_data.get('next')
+                    if tracks_url and "&locale=" in tracks_url:
+                        tracks_url = tracks_url.split("&locale=")[0]
+                    
+                raw_data['tracks']['items'] = tracks
+                raw_data['_batch_enabled'] = False
                 
-            raw_data['tracks']['items'] = tracks
         except Exception as e:
             return {"error": f"Failed to get playlist data: {str(e)}"}
             
@@ -152,25 +232,68 @@ def get_raw_spotify_data(spotify_url):
         try:
             album_data = get_json_from_api(
                 album_base_url.format(url_info["id"]),
-                token["accessToken"]
+                access_token
             )
             if not album_data:
                 return {"error": "Failed to get album data"}
                 
-            album_data['_token'] = token["accessToken"]
+            album_data['_token'] = access_token
             raw_data = album_data
+            total_tracks = album_data.get('total_tracks', 0)
             
-            tracks = []
-            tracks_url = f'{album_base_url.format(url_info["id"])}/tracks?limit=50'
-            while tracks_url:
-                track_data = get_json_from_api(tracks_url, token["accessToken"])
-                if not track_data:
-                    break
-                    
-                tracks.extend(track_data['items'])
-                tracks_url = track_data.get('next')
+            if batch:
+                tracks_url = f'{album_base_url.format(url_info["id"])}/tracks?limit=50'
+                tracks, num_batches = fetch_tracks_in_batches(tracks_url, access_token, 50, delay)
+                raw_data['tracks']['items'] = tracks
+                raw_data['_batch_count'] = num_batches
+                raw_data['_batch_enabled'] = True
+                
+                if len(tracks) < total_tracks:
+                    last_offset = len(tracks)
+                    remaining_tracks = []
+                    
+                    while last_offset < total_tracks:
+                        print(f"Batch : {num_batches}")
+                        print(f"Offset : {last_offset}")
+                        print("-------------")
+                        
+                        remainder_url = f'{album_base_url.format(url_info["id"])}/tracks?offset={last_offset}&limit=50'
+                        track_data = get_json_from_api(remainder_url, access_token)
+                        
+                        if not track_data or not track_data.get('items'):
+                            break
+                            
+                        items = track_data.get('items', [])
+                        remaining_tracks.extend(items)
+                        
+                        if len(items) < 50:
+                            break
+                            
+                        last_offset += len(items)
+                        num_batches += 1
+                        
+                        if delay > 0:
+                            sleep(delay)
+                    
+                    tracks.extend(remaining_tracks)
+                    raw_data['tracks']['items'] = tracks
+                    raw_data['_batch_count'] = num_batches
+            else:
+                tracks = []
+                tracks_url = f'{album_base_url.format(url_info["id"])}/tracks?limit=50'
+                while tracks_url:
+                    track_data = get_json_from_api(tracks_url, access_token)
+                    if not track_data:
+                        break
+                        
+                    tracks.extend(track_data['items'])
+                    tracks_url = track_data.get('next')
+                    if tracks_url and "&locale=" in tracks_url:
+                        tracks_url = tracks_url.split("&locale=")[0]
+                    
+                raw_data['tracks']['items'] = tracks
+                raw_data['_batch_enabled'] = False
                 
-            raw_data['tracks']['items'] = tracks
         except Exception as e:
             return {"error": f"Failed to get album data: {str(e)}"}
                 
@@ -178,7 +301,7 @@ def get_raw_spotify_data(spotify_url):
         try:
             track_data = get_json_from_api(
                 track_base_url.format(url_info["id"]),
-                token["accessToken"]
+                access_token
             )
             if not track_data:
                 return {"error": "Failed to get track data"}
@@ -191,10 +314,10 @@ def get_raw_spotify_data(spotify_url):
 
 def format_track_data(track_data):
     artists = []
-    for artist in track_data['artists']:
+    for artist in track_data.get('artists', []):
         artists.append(artist['name'])
     
-    image_url = track_data.get('album', {}).get('images', [{}])[0].get('url', '')
+    image_url = track_data.get('album', {}).get('images', [{}])[0].get('url', '') if track_data.get('album', {}).get('images') else ''
     
     return {
         "track": {
@@ -211,10 +334,10 @@ def format_track_data(track_data):
 
 def format_album_data(album_data):
     artists = []
-    for artist in album_data['artists']:
+    for artist in album_data.get('artists', []):
         artists.append(artist['name'])
     
-    image_url = album_data.get('images', [{}])[0].get('url', '')
+    image_url = album_data.get('images', [{}])[0].get('url', '') if album_data.get('images') else ''
     
     track_list = []
     for track in album_data.get('tracks', {}).get('items', []):
@@ -233,28 +356,38 @@ def format_album_data(album_data):
             "external_urls": track.get('external_urls', {}).get('spotify', '')
         })
     
+    album_info = {
+        "total_tracks": album_data.get('total_tracks', 0),
+        "name": album_data.get('name', ''),
+        "release_date": album_data.get('release_date', ''),
+        "artists": ", ".join(artists),
+        "images": image_url
+    }
+    
+    if album_data.get('_batch_enabled', False):
+        album_info["batch"] = f"{album_data.get('_batch_count', 1)}"
+    
     return {
-        "album_info": {
-            "total_tracks": album_data.get('total_tracks', 0),
-            "name": album_data.get('name', ''),
-            "release_date": album_data.get('release_date', ''),
-            "artists": ", ".join(artists),
-            "images": image_url
-        },
+        "album_info": album_info,
         "track_list": track_list
     }
 
 def format_playlist_data(playlist_data):
-    image_url = playlist_data.get('images', [{}])[0].get('url', '')
+    image_url = playlist_data.get('images', [{}])[0].get('url', '') if playlist_data.get('images') else ''
     
     track_list = []
     for item in playlist_data.get('tracks', {}).get('items', []):
         track = item.get('track', {})
+        if not track:
+            continue
+            
         artists = []
         for artist in track.get('artists', []):
             artists.append(artist['name'])
             
-        track_image = track.get('album', {}).get('images', [{}])[0].get('url', '')
+        track_image = ''
+        if track.get('album', {}).get('images'):
+            track_image = track.get('album', {}).get('images', [{}])[0].get('url', '')
         
         track_list.append({
             "artists": ", ".join(artists),
@@ -267,16 +400,21 @@ def format_playlist_data(playlist_data):
             "external_urls": track.get('external_urls', {}).get('spotify', '')
         })
     
+    playlist_info = {
+        "tracks": {"total": playlist_data.get('tracks', {}).get('total', 0)},
+        "followers": {"total": playlist_data.get('followers', {}).get('total', 0)},
+        "owner": {
+            "display_name": playlist_data.get('owner', {}).get('display_name', ''),
+            "name": playlist_data.get('name', ''),
+            "images": image_url
+        }
+    }
+    
+    if playlist_data.get('_batch_enabled', False):
+        playlist_info["batch"] = f"{playlist_data.get('_batch_count', 1)}"
+    
     return {
-        "playlist_info": {
-            "tracks": {"total": playlist_data.get('tracks', {}).get('total', 0)},
-            "followers": {"total": playlist_data.get('followers', {}).get('total', 0)},
-            "owner": {
-                "display_name": playlist_data.get('owner', {}).get('display_name', ''),
-                "name": playlist_data.get('name', ''),
-                "images": image_url
-            }
-        },
+        "playlist_info": playlist_info,
         "track_list": track_list
     }
 
@@ -296,8 +434,8 @@ def process_spotify_data(raw_data, data_type):
     except Exception as e:
         return {"error": f"Error processing data: {str(e)}"}
 
-def get_filtered_data(spotify_url):
-    raw_data = get_raw_spotify_data(spotify_url)
+def get_filtered_data(spotify_url, batch=False, delay=1.0):
+    raw_data = get_raw_spotify_data(spotify_url, batch=batch, delay=delay)
     if raw_data and "error" not in raw_data:
         url_info = parse_uri(spotify_url)
         filtered_data = process_spotify_data(raw_data, url_info['type'])
@@ -305,11 +443,11 @@ def get_filtered_data(spotify_url):
     return {"error": "Failed to get raw data"}
 
 if __name__ == '__main__':
-    playlist = "https://open.spotify.com/playlist/37i9dQZEVXbNG2KDcFcKOF"
+    playlist = "https://open.spotify.com/playlist/5Qvz8wZIRYbEUUFoPueKI5"
     album = "https://open.spotify.com/album/7kFyd5oyJdVX2pIi6P4iHE"
     song = "https://open.spotify.com/track/4wJ5Qq0jBN4ajy7ouZIV1c"
     
-    filtered_playlist = get_filtered_data(playlist)
+    filtered_playlist = get_filtered_data(playlist, batch=True, delay=0.1)
     print(json.dumps(filtered_playlist, indent=2))
     
     filtered_album = get_filtered_data(album)

getTracks.py

@@ -12,22 +12,14 @@ class TrackDownloader:
             'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
         }
         self.progress_callback = None
-        self.filename_format = 'title_artist'
         self.use_fallback = use_fallback
         self.base_domain = "lucida.su" if use_fallback else "lucida.to"
 
     def set_progress_callback(self, callback):
         self.progress_callback = callback
-        
-    def set_filename_format(self, format_type):
-        self.filename_format = format_type
 
-    def generate_filename(self, metadata):
-        if self.filename_format == 'artist_title':
-            filename = f"{metadata['artists']} - {metadata['title']}.flac"
-        else:
-            filename = f"{metadata['title']} - {metadata['artists']}.flac"
-        return self.sanitize_filename(filename)
+    def generate_filename(self, track_id, service):
+        return f"{track_id}_{service}.flac"
 
     async def get_track_info(self, track_id, service="amazon", use_fallback=None):
         if use_fallback is None:
@@ -42,6 +34,8 @@ class TrackDownloader:
         if "error" in result:
             raise Exception(f"Failed to get track info: {result['error']}")
         
+        result["track_id"] = track_id
+        
         return result
 
     def convert_spotify_link(self, spotify_url, target_service="amazon", domain_type="to"):
@@ -73,7 +67,7 @@ class TrackDownloader:
             }
             
             session = requests.Session()
-            session.verify = False
+            session.verify = True
             
             response = session.get(
                 base_url,
@@ -129,9 +123,7 @@ class TrackDownloader:
                 "token": {
                     "primary": None,
                     "expiry": None
-                },
-                "title": "Title",
-                "artists": "Artist"
+                }
             }
             
             if token:
@@ -149,27 +141,18 @@ class TrackDownloader:
         except Exception as error:
             return {"error": str(error)}
 
-    def sanitize_filename(self, filename):
-        invalid_chars = '<>:"/\\|?*'
-        for char in invalid_chars:
-            filename = filename.replace(char, '')
-            
-        filename = ' '.join(filename.split())
-        filename = filename.replace(' ,', ',')
-        filename = filename.replace(',', ', ')
-        while '  ' in filename:
-            filename = filename.replace('  ', ' ')
-        filename = filename.rsplit('.', 1)
-        filename[0] = filename[0].strip()
-        return '.'.join(filename)
-
-    def download(self, metadata, output_dir):
+    def download(self, metadata, output_dir, is_paused_callback=None, is_stopped_callback=None):
         track_url = metadata['url']
         primary_token = metadata['token']['primary']
         expiry = metadata['token']['expiry']
+        track_id = metadata['track_id']
+        service = metadata['service']
         
         print(f"Starting download for: {track_url}")
         
+        if is_stopped_callback and is_stopped_callback():
+            raise Exception("Download stopped by user")
+        
         initial_request = {
             "account": {"id": "auto", "type": "country"},
             "compat": "false",
@@ -201,12 +184,20 @@ class TrackDownloader:
         handoff = initial_response["handoff"]
         server = initial_response["server"]
 
-        file_name = self.generate_filename(metadata)
+        file_name = self.generate_filename(track_id, service)
 
         completion_url = f"https://{server}.{self.base_domain}/api/fetch/request/{handoff}"
 
         print("Waiting for track processing to complete")
         while True:
+            if is_stopped_callback and is_stopped_callback():
+                raise Exception("Download stopped by user")
+                
+            while is_paused_callback and is_paused_callback():
+                time.sleep(0.1)
+                if is_stopped_callback and is_stopped_callback():
+                    raise Exception("Download stopped by user")
+            
             completion_response = self.client.get(completion_url, headers=self.headers).json()
             
             status = completion_response["status"]
@@ -250,6 +241,20 @@ class TrackDownloader:
                 last_update_time = start_time
                 
                 for chunk in response.iter_content(chunk_size=8192):
+                    if is_stopped_callback and is_stopped_callback():
+                        file.close()
+                        if os.path.exists(file_path):
+                            os.remove(file_path)
+                        raise Exception("Download stopped by user")
+                        
+                    while is_paused_callback and is_paused_callback():
+                        time.sleep(0.1)
+                        if is_stopped_callback and is_stopped_callback():
+                            file.close()
+                            if os.path.exists(file_path):
+                                os.remove(file_path)
+                            raise Exception("Download stopped by user")
+                    
                     if chunk:
                         file.write(chunk)
                         downloaded_size += len(chunk)

version.json

@@ -1,3 +1,3 @@
 {
-  "version": "2.1"
+  "version": "2.4"
 }