"""Smoke tests for the Gradio app — import-level checks only."""

import pytest


def test_app_module_imports():
    """Verify lightweight source modules can be imported without error."""
    import src.config  # noqa: F401
    import src.parsing  # noqa: F401
    import src.prompts  # noqa: F401


def test_config_values():
    from src.config import APP_SUBTITLE, APP_TITLE, COORD_MAX, MODEL_ID

    assert MODEL_ID == "nvidia/LocateAnything-3B"
    assert COORD_MAX == 1000
    assert len(APP_TITLE) > 0
    assert len(APP_SUBTITLE) > 0


def test_visualization_import():
    """Verify visualization module imports."""
    import src.visualization

    assert hasattr(src.visualization, "draw_boxes")
    assert hasattr(src.visualization, "create_no_detection_overlay")


def test_app_build_callable():
    """Verify the Gradio app builder is importable and callable."""
    try:
        from app import build_app

        assert callable(build_app)
    except ImportError:
        pytest.skip("Gradio not available in test environment")


def test_inference_module_imports():
    """Verify inference module structure without heavy imports."""
    try:
        from src.inference import LocateAnythingWorker

        w = LocateAnythingWorker.__new__(LocateAnythingWorker)
        assert not getattr(w, "_loaded", True)
    except ImportError:
        pytest.skip("transformers/torch not available in test environment")