"""Workflow plugin: start Flask server."""


def run(runtime, inputs):
    """Start the Flask web server.

    Inputs:
        host: Host address (default: 0.0.0.0)
        port: Port number (default: 8000)
        debug: Enable debug mode (default: False)

    Returns:
        dict: Success indicator (note: this blocks until server stops)
    """
    app = runtime.context.get("flask_app")
    if not app:
        return {"error": "Flask app not found in context. Run web.create_flask_app first."}

    host = inputs.get("host", "0.0.0.0")
    port = inputs.get("port", 8000)
    debug = inputs.get("debug", False)

    # This will block until the server is stopped
    app.run(host=host, port=port, debug=debug)

    return {"result": "Server stopped"}