from __future__ import annotations

import unittest
from pathlib import Path

from streamlit.testing.v1 import AppTest

ROOT = Path(__file__).resolve().parents[1]


class StreamlitSmokeTests(unittest.TestCase):
    def test_default_demo_renders_without_exception(self) -> None:
        app = AppTest.from_file(str(ROOT / "app.py"), default_timeout=30).run()
        self.assertEqual(len(app.exception), 0)
        self.assertGreaterEqual(len(app.selectbox), 1)
        self.assertEqual(app.radio[0].value, "Dane demonstracyjne")
        self.assertEqual(app.segmented_control[0].value, "Przegląd")
        self.assertEqual(
            app.segmented_control[0].options,
            ["Przegląd", "Szczegóły cylindra"],
        )
        self.assertFalse(any("C01" in button.label for button in app.button))
        self.assertFalse(
            any(selector.label == "Cylinder główny" for selector in app.selectbox)
        )
        rendered = "\n".join(markdown.value for markdown in app.markdown)
        self.assertIn("Konsola diagnostyczna ENGIN", rendered)
        self.assertIn("ARTEFAKT ZWERYFIKOWANY", rendered)
        self.assertIn("runtime-verified", rendered)
        self.assertNotIn("CPU · DANE LOKALNE", rendered)
        for english_fragment in (
            "Diagnostic Console",
            "LIVE INFERENCE",
            "DEMO FALLBACK",
            "LEAKAGE-SAFE",
            "Grouped Macro F1",
            "Severity accuracy",
        ):
            self.assertNotIn(english_fragment, rendered)

        self.assertEqual(
            [metric.label for metric in app.metric],
            [
                "Makro F1 (grupowe)",
                "Trafność nasilenia",
                "Punkty walidacyjne",
                "Testy",
            ],
        )
        technical_expander = next(
            expander for expander in app.expander if expander.label == "Informacje techniczne"
        )
        self.assertFalse(technical_expander.proto.expanded)
        diagnostic_table = next(
            table
            for table in app.dataframe
            if "Źródło decyzji" in table.value.columns
        )
        diagnostic_columns = set(diagnostic_table.value.columns)
        self.assertIn("Źródło decyzji", diagnostic_columns)
        self.assertNotIn("decision_source", diagnostic_columns)

    def test_upload_mode_has_safe_empty_state(self) -> None:
        app = AppTest.from_file(str(ROOT / "app.py"), default_timeout=30).run()
        app.radio[0].set_value("Wgraj plik CSV").run()
        self.assertEqual(len(app.exception), 0)
        self.assertGreaterEqual(len(app.info), 1)

    def test_cylinder_selector_exists_only_in_detail_view(self) -> None:
        app = AppTest.from_file(str(ROOT / "app.py"), default_timeout=30).run()
        self.assertFalse(
            any(selector.label == "Cylinder główny" for selector in app.selectbox)
        )
        app.segmented_control[0].set_value("Szczegóły cylindra").run()
        self.assertEqual(app.segmented_control[0].value, "Szczegóły cylindra")
        detail_selector = next(
            selector for selector in app.selectbox if selector.label == "Cylinder główny"
        )
        detail_selector.set_value(3).run()
        detail_selector = next(
            selector for selector in app.selectbox if selector.label == "Cylinder główny"
        )
        self.assertEqual(detail_selector.value, 3)
        comparison = app.multiselect[0]
        self.assertEqual(comparison.label, "Porównaj z cylindrami")
        comparison.set_value([1, 2, 4]).run()
        self.assertEqual(len(app.exception), 0)
        rendered = "\n".join(markdown.value for markdown in app.markdown)
        self.assertIn("CYLINDER 03", rendered)