import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))

import main as pitch_main


PROJECT_ROOT = Path(__file__).resolve().parents[2]

LIVE_CASES = [
    {
      "path": PROJECT_ROOT / "audios-testes" / "teste_teclado.mp4",
      "instrumento": "teclado",
      "expected_stage": "F#m A D C#sus4 C#",
      "categoria": "harmonico",
    },
    {
      "path": PROJECT_ROOT / "audios-testes" / "teclado_bia_ruido.ogg",
      "instrumento": "teclado",
      "categoria": "harmonico",
      "noisy": True,
    },
    {
      "path": PROJECT_ROOT / "audios-testes" / "teste_sax_alto.ogg",
      "instrumento": "sax_alto",
      "categoria": "melodico",
    },
    {
      "path": PROJECT_ROOT / "audios-testes" / "sax_alto_bia_ruido.ogg",
      "instrumento": "sax_alto",
      "categoria": "melodico",
    },
    {
      "path": PROJECT_ROOT / "audios-testes" / "teste_violino.ogg",
      "instrumento": "violino",
      "categoria": "melodico",
    },
]


@unittest.skipUnless(
    all(case["path"].exists() for case in LIVE_CASES),
    "Clips de regressao live nao encontrados",
)
class LiveAudioRegressionTests(unittest.TestCase):
    def assert_progression_overlap(
        self,
        actual_progression: str,
        expected_progression: str,
        minimum_overlap: int = 2,
    ) -> None:
        actual_tokens = [item for item in str(actual_progression or "").split() if item]
        expected_tokens = [item for item in str(expected_progression or "").split() if item]
        overlap = len(set(actual_tokens) & set(expected_tokens))
        self.assertGreaterEqual(
            overlap,
            minimum_overlap,
            f"sobreposicao live insuficiente entre '{actual_progression}' e '{expected_progression}'",
        )

    def test_live_harmonic_path_produces_playable_stage_output(self):
        for case in LIVE_CASES:
            with self.subTest(audio=case["path"].name, instrumento=case["instrumento"]):
                resultado = pitch_main.analisar_harmonico(
                    case["path"],
                    case["instrumento"],
                    contexto="live",
                )

                self.assertEqual(resultado["tipo"], "harmonico")
                self.assertTrue(resultado["acorde_atual"], "live precisa devolver acorde_atual")
                self.assertTrue(resultado["cifra_palco"], "live precisa devolver cifra_palco")
                self.assertIn("diagnostico_harmonico", resultado)
                self.assertIn("timings", resultado)
                self.assertTrue(resultado["diagnostico_harmonico"]["fast_mode"])
                self.assertGreaterEqual(float(resultado.get("beat_confidence", 0.0)), 0.0)

                if case["categoria"] == "harmonico":
                    if case.get("expected_stage"):
                        self.assert_progression_overlap(resultado["cifra_palco"], case["expected_stage"])
                    self.assertGreaterEqual(len(resultado.get("acordes_resumo", [])), 1)
                    if case.get("noisy"):
                        self.assertGreaterEqual(
                            float(resultado["diagnostico_harmonico"].get("segment_count", 0)),
                            1.0,
                        )
                        self.assertGreaterEqual(len(resultado.get("current_chord_candidates", [])), 1)
                else:
                    # Para melodicos, o live agora precisa ao menos devolver base harmonica utilizavel.
                    self.assertGreaterEqual(len(resultado.get("acordes_resumo", [])), 1)
                    self.assertGreaterEqual(len(resultado.get("acordes_janela_final", [])), 1)
                    self.assertGreaterEqual(
                        float(resultado["diagnostico_harmonico"].get("segment_count", 0)),
                        1.0,
                    )


if __name__ == "__main__":
    unittest.main()