# SQL Agent Web UI

A lightweight FastAPI + vanilla JS frontend for interacting with the SugarScale SQL agent.

## Backend

Located at `db_agent/ui/backend/main.py`. It exposes:
- `POST /api/query` – wraps the existing agent pipeline (LLM + optional SQL execution + logging).
- `GET /health` – health probe.
- Serves the static frontend and index page.

### Run locally
```powershell
# Activate your virtual environment first
uvicorn db_agent.ui.backend.main:app --reload --host 0.0.0.0 --port 8000
```

The UI will be available at `http://localhost:8000/`. Adjust the host/port as needed.

## Frontend

Files under `db_agent/ui/frontend/`:
- `index.html` – main page with the question form and results display.
- `static/app.js` – handles form submission, fetches `/api/query`, renders results.
- `static/styles.css` – modern styling.

## Configuration Notes
- The backend reuses environment variables (`DB_SERVER`, `DB_DATABASE`, etc.) for SQL execution, so ensure they are set before starting the FastAPI server.
- The backend expects the LLM endpoint configured in `db_agent/client.LlmConfig.base_url` (defaults to `http://192.168.0.30:8080`). Update if your TGI server runs elsewhere.
- Interaction logs still append to `db_agent/logs/query_log.jsonl` by default.

## Next Ideas
- Add user authentication or API keys.
- Save favorite queries or table presets.
- Stream results for large datasets.