v4.3 ui: 3D wooden bookshelf redesign, fix player cover aspect ratio, and smooth subtitle scroll

media_storage.py

@@ -140,6 +140,57 @@ def get_storage_usage_bytes():
     return total
 
 
+# ============================================
+# Pending thumbnails (v4.4) — আপলোডের সময় জেনারেট, সেভের সময় commit
+# ============================================
+
+import uuid as _uuid
+
+def _pending_thumbs_dir():
+    return os.path.join(MEDIA_STORAGE_DIR, '_pending_thumbs')
+
+
+def save_pending_thumbnail(image_bytes, image_format='jpeg'):
+    """
+    অস্থায়ী থাম্বনেইল সেভ করে একটা token রিটার্ন করে।
+    প্রজেক্ট এখনো তৈরি হয়নি বলে project_id ছাড়াই রাখা হয়।
+    """
+    if not image_bytes:
+        return None
+    d = _pending_thumbs_dir()
+    _ensure_dir(d)
+    fmt = (image_format or 'jpeg').lower()
+    token = _uuid.uuid4().hex
+    filename = f'{token}.{fmt}'
+    with open(os.path.join(d, filename), 'wb') as f:
+        f.write(image_bytes)
+    return filename  # token = filename
+
+
+def read_pending_thumbnail(token):
+    """Pending thumbnail-এর (bytes, format) ফেরত দেয়। না থাকলে (None, None)।"""
+    if not token or '/' in token or '\\' in token or '..' in token:
+        return None, None
+    path = os.path.join(_pending_thumbs_dir(), token)
+    if not os.path.exists(path):
+        return None, None
+    fmt = token.rsplit('.', 1)[-1] if '.' in token else 'jpeg'
+    with open(path, 'rb') as f:
+        return f.read(), fmt
+
+
+def delete_pending_thumbnail(token):
+    """Pending thumbnail মুছে দেয় (commit বা বাতিলের পর)।"""
+    if not token or '/' in token or '\\' in token or '..' in token:
+        return
+    path = os.path.join(_pending_thumbs_dir(), token)
+    if os.path.exists(path):
+        try:
+            os.remove(path)
+        except OSError:
+            pass
+
+
 # ============================================
 # Delete operations
 # ============================================