from pathlib import Path

from src import duration


def test_manual_duration_is_fixed_and_clamped(monkeypatch, tmp_path):
    sample = tmp_path / "sample.wav"
    sample.write_bytes(b"x")
    monkeypatch.setattr(duration, "probe_duration", lambda path: 120.0)
    estimate = duration.calculate_duration_estimate(
        [sample], [], [], "None", "avg_wave", "FLAC", 0, 0,
        duration.DURATION_MODE_MANUAL, 999, 12, 1.25,
    )
    assert estimate.seconds == duration.ZERO_GPU_MAX_SECONDS


def test_semi_auto_increases_for_more_models_and_parameters(monkeypatch, tmp_path):
    sample = tmp_path / "sample.wav"
    sample.write_bytes(b"x")
    monkeypatch.setattr(duration, "probe_duration", lambda path: 180.0)
    base = duration.calculate_duration_estimate(
        [sample], [], ["UVR-MDX-NET-Inst_HQ_5.onnx"], "None",
        "avg_wave", "FLAC", 0, 0,
        duration.DURATION_MODE_SEMI_AUTO, 180, 8, 1.0,
    )
    heavier = duration.calculate_duration_estimate(
        [sample], [], ["UVR-MDX-NET-Inst_HQ_5.onnx", "UVR-De-Reverb-aufr33-jarredou.pth"], "None",
        "avg_fft", "MP3", 2, 120,
        duration.DURATION_MODE_SEMI_AUTO, 180, 8, 1.0,
    )
    assert heavier.seconds > base.seconds
    assert heavier.model_count == 2


def test_duration_callable_uses_app_argument_positions(monkeypatch, tmp_path):
    sample = tmp_path / "sample.wav"
    sample.write_bytes(b"x")
    monkeypatch.setattr(duration, "probe_duration", lambda path: 60.0)
    args = [
        [sample], [], [], "None", "", "", "", "main", "", "", "",
        "avg_wave", "FLAC", "All stems", 0, 0,
        duration.DURATION_MODE_MANUAL, 75, 12, 1.25,
    ]
    assert duration.estimate_gpu_seconds(*args) == 75


def test_safe_mode_defaults_off_and_adds_exact_30_percent(monkeypatch, tmp_path):
    sample = tmp_path / "sample.wav"
    sample.write_bytes(b"x")
    monkeypatch.setattr(duration, "probe_duration", lambda path: 120.0)
    base = duration.calculate_duration_estimate(
        [sample], [], [], "None", "avg_wave", "FLAC", 0, 0,
        duration.DURATION_MODE_SEMI_AUTO, 180, 10, 1.0, False,
    )
    safe = duration.calculate_duration_estimate(
        [sample], [], [], "None", "avg_wave", "FLAC", 0, 0,
        duration.DURATION_MODE_SEMI_AUTO, 180, 10, 1.0, True,
    )
    assert base.safe_mode_requested is False
    assert base.safe_mode_applied is False
    assert base.safe_mode_multiplier == 1.0
    assert safe.safe_mode_requested is True
    assert safe.safe_mode_applied is True
    assert safe.safe_mode_multiplier == duration.SAFE_MODE_MULTIPLIER
    assert safe.base_unclamped_seconds == base.base_unclamped_seconds
    assert safe.unclamped_seconds == base.unclamped_seconds * duration.SAFE_MODE_MULTIPLIER
    assert safe.seconds == duration._clamp_seconds(base.unclamped_seconds * 1.30)


def test_safe_mode_never_changes_manual_duration(monkeypatch, tmp_path):
    sample = tmp_path / "sample.wav"
    sample.write_bytes(b"x")
    monkeypatch.setattr(duration, "probe_duration", lambda path: 120.0)
    estimate = duration.calculate_duration_estimate(
        [sample], [], [], "None", "avg_wave", "FLAC", 0, 0,
        duration.DURATION_MODE_MANUAL, 75, 10, 1.0, True,
    )
    assert estimate.seconds == 75
    assert estimate.safe_mode_requested is True
    assert estimate.safe_mode_applied is False
    assert estimate.safe_mode_multiplier == 1.0