Update app.py

app.py

@@ -2,9 +2,44 @@
 from app.gradio_app import build_demo
 from models.tts_router import cleanup_old_audio
 
+import os
+import huggingface_hub
+
+def ensure_model():
+    """
+    Downloads the GGUF model into ./models if not already present.
+    - LLAMACPP_MODEL_PATH must include the filename.
+    - HF_MODEL_REPO must point to the Hugging Face repo.
+    """
+    model_path = os.getenv("LLAMACPP_MODEL_PATH")
+    repo_id = os.getenv("HF_MODEL_REPO")
+
+    if not model_path or not repo_id:
+        raise RuntimeError("Both LLAMACPP_MODEL_PATH and HF_MODEL_REPO must be set in .env")
+
+    if os.path.exists(model_path):
+        print(f"[MODEL] Found existing model at {model_path}")
+        return model_path
+
+    os.makedirs(os.path.dirname(model_path), exist_ok=True)
+
+    filename = os.path.basename(model_path)
+
+    print(f"[MODEL] Downloading {filename} from {repo_id} …")
+    local_path = huggingface_hub.hf_hub_download(
+        repo_id=repo_id,
+        filename=filename,
+        local_dir=os.path.dirname(model_path),
+        local_dir_use_symlinks=False,
+    )
+    print(f"[MODEL] Saved at {local_path}")
+    return local_path
+
 def main():
     # Clean up old TTS files on boot
     cleanup_old_audio(keep_latest=None)
+    # dowload model at startup
+    ensure_model()
 
     demo = build_demo()
     # Don’t set server_name/server_port; HF will handle it.