from collections import deque

import pytest

from src.models import BoundingBox, TrackEvent, TrackPoint, TrackedPerson, TrackState


def point(frame: int, x: float) -> TrackPoint:
    return TrackPoint(float(frame), f"2026-01-01T00:00:0{frame}", frame, x, 10.0, x, 20.0, BoundingBox(0, 0, 10, 20))


def test_tracked_person_and_track_point() -> None:
    bbox = BoundingBox(1, 2, 11, 22)
    person = TrackedPerson(3, bbox, 0.9, 0, "person", 6.0, 12.0, 6.0, 22.0, True, True, 4, 0)
    assert person.track_id == 3
    assert person.foot_y == 22.0
    assert point(1, 5).frame_number == 1


def test_track_state_trajectory_is_bounded() -> None:
    state = TrackState(1, "a", "a", 1, 1, trajectory=deque(maxlen=2))
    state.trajectory.extend((point(1, 1), point(2, 2), point(3, 3)))
    assert [item.frame_number for item in state.trajectory] == [2, 3]
    assert not state.finalized


def test_track_event_and_invalid_values() -> None:
    event = TrackEvent("track_created", 1, 1, "now", 0.0, 1.0, 2.0, metadata={"日本語": "値"})
    assert event.metadata["日本語"] == "値"
    with pytest.raises(ValueError):
        TrackEvent("bad", 1, 1, "now", 0.0, 0.0, 0.0)
    with pytest.raises(ValueError):
        TrackedPerson(-1, BoundingBox(0, 0, 2, 2), 0.5, 0, "person", 1, 1, 1, 2, False, False, 0, 0)