Update app.py

app.py

@@ -72,22 +72,28 @@ def create_temp_file(content, suffix=".txt"):
 
     # Case 1: If there's no block marker `[]`, treat it as a single-line input
     if not re.search(r"\[\w+\]", content):
-        formatted_content = " ".join(content.split())  # Normalize spaces to one space
+        # Normalize single-line input to avoid extra newlines
+        formatted_content = " ".join(content.split())
     else:
-        # Split content into blocks using headers (e.g., [verse], [chorus])
+        # Case 2: If there are block markers, ensure blocks are separated by two newlines
         blocks = re.split(r"(?=\[\w+\])", content)  # Keeps headers in the split parts
-
-        # Remove excess newlines within each block
         cleaned_blocks = [block.strip() for block in blocks if block.strip()]
+        formatted_content = "\n\n".join(cleaned_blocks)  # Ensure exactly two newlines
 
-        # Ensure exactly two newlines between blocks
-        formatted_content = "\n\n".join(cleaned_blocks)
-
-    # Write to temp file
+    # Create temp file
     fd, path = tempfile.mkstemp(suffix=suffix)
-    with os.fdopen(fd, "w", encoding="utf-8") as f:
-        f.write(formatted_content)
     
+    try:
+        # Open file in write mode and write the formatted content
+        with os.fdopen(fd, "w", encoding="utf-8") as f:
+            f.write(formatted_content)
+    except Exception as e:
+        print(f"Error writing file: {e}")
+        return None
+    
+    # Ensure file permissions allow reading
+    os.chmod(path, 0o644)  # Read & write permissions for owner, read for others
+
     return path
 
 def get_last_mp3_file(output_dir):