Integrate nav

- other minor refactors

server/app/lib/folderslib.py

@@ -58,7 +58,6 @@ def get_subdirs(foldername: str) -> List[models.Folder]:
 
             if str1 is not None:
                 subdirs.add(foldername + "/" + str1)
-
     return [create_folder(dir) for dir in subdirs]
 
 

server/app/lib/playlistlib.py

@@ -35,8 +35,7 @@ def add_track(playlistid: str, trackid: str):
 
             try:
                 playlist.add_track(track)
-                instances.playlist_instance.add_track_to_playlist(
-                    playlistid, track)
+                instances.playlist_instance.add_track_to_playlist(playlistid, track)
                 return
             except TrackExistsInPlaylist as error:
                 raise error
@@ -61,6 +60,25 @@ def create_all_playlists():
         _bar.next()
     _bar.finish()
 
+    validate_images()
+
+
+def create_thumbnail(image: any, img_path: str) -> str:
+    """
+    Creates a 250 x 250 thumbnail from a playlist image
+    """
+    thumb_path = "thumb_" + img_path
+    full_thumb_path = os.path.join(settings.APP_DIR, "images", "playlists", thumb_path)
+
+    aspect_ratio = image.width / image.height
+
+    new_w = round(250 * aspect_ratio)
+
+    thumb = image.resize((new_w, 250), Image.ANTIALIAS)
+    thumb.save(full_thumb_path, "webp")
+
+    return thumb_path
+
 
 def save_p_image(file: datastructures.FileStorage, pid: str):
     """
@@ -68,11 +86,11 @@ def save_p_image(file: datastructures.FileStorage, pid: str):
     """
     img = Image.open(file)
 
-    random_str = "".join(
-        random.choices(string.ascii_letters + string.digits, k=5))
+    random_str = "".join(random.choices(string.ascii_letters + string.digits, k=5))
 
     img_path = pid + str(random_str) + ".webp"
-    full_path = os.path.join(settings.APP_DIR, "images", "playlists", img_path)
+
+    full_img_path = os.path.join(settings.APP_DIR, "images", "playlists", img_path)
 
     if file.content_type == "image/gif":
         frames = []
@@ -80,9 +98,33 @@ def save_p_image(file: datastructures.FileStorage, pid: str):
         for frame in ImageSequence.Iterator(img):
             frames.append(frame.copy())
 
-        frames[0].save(full_path, save_all=True, append_images=frames[1:])
-        return img_path
+        frames[0].save(full_img_path, save_all=True, append_images=frames[1:])
+        thumb_path = create_thumbnail(img, img_path=img_path)
 
-    img.save(full_path, "webp")
+        return img_path, thumb_path
 
-    return img_path
+    img.save(full_img_path, "webp")
+    thumb_path = create_thumbnail(img, img_path=img_path)
+
+    return img_path, thumb_path
+
+
+def validate_images():
+    """
+    Removes all unused images in the images/playlists folder.
+    """
+    images = []
+
+    for playlist in api.PLAYLISTS:
+        if playlist.image:
+            img_path = playlist.image.split("/")[-1]
+            thumb_path = playlist.thumb.split("/")[-1]
+
+            images.append(img_path)
+            images.append(thumb_path)
+
+    p_path = os.path.join(settings.APP_DIR, "images", "playlists")
+
+    for image in os.listdir(p_path):
+        if image not in images:
+            os.remove(os.path.join(p_path, image))