"""Smoke test: Home module is importable without DB or heavy computation."""

import importlib
import sys


def test_home_importable():
    # Streamlit cannot run navigation outside of a server context,
    # so we only verify the file can be parsed/compiled, not fully executed.
    import ast
    import os

    home_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), "Home.py")
    with open(home_path) as f:
        source = f.read()

    # Verify the file parses as valid Python
    tree = ast.parse(source)

    # Verify st.navigation is called (modern Streamlit multi-page API)
    nav_calls = [
        node
        for node in ast.walk(tree)
        if isinstance(node, ast.Call)
        and isinstance(node.func, ast.Attribute)
        and node.func.attr == "navigation"
    ]
    assert nav_calls, "Home.py must call st.navigation()"

    # Verify at least 2 st.Page() calls exist (one per page)
    page_calls = [
        node
        for node in ast.walk(tree)
        if isinstance(node, ast.Call)
        and isinstance(node.func, ast.Attribute)
        and node.func.attr == "Page"
    ]
    assert len(page_calls) >= 2, "Home.py must define at least 2 st.Page() pages"
