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"""Unit tests for performance library and MovementManager exclusive mode."""

from __future__ import annotations

import asyncio
import json
import time
from pathlib import Path
from unittest.mock import MagicMock, call

import numpy as np
import pytest

from reachy_dance_tutor_app.moves import MovementManager
from reachy_dance_tutor_app.performance_library.catalog import ClipInfo, scan_data_dir, scan_local_performance_dir
from reachy_dance_tutor_app.performance_library.lead_compensation import LeadCompensationModel
from reachy_dance_tutor_app.performance_library.paths import LOCAL_REPO_ID, resolve_data_dir, slug_repo_id
from reachy_dance_tutor_app.performance_library.resolve import find_clip_info, find_clip_json_path


def test_slug_repo_id() -> None:
    assert slug_repo_id("foo/bar") == "foo__bar"


def test_resolve_data_dir_prefers_data_subdir(tmp_path: Path) -> None:
    data = tmp_path / "data"
    data.mkdir()
    (data / "a.json").write_text("{}", encoding="utf-8")
    assert resolve_data_dir(tmp_path) == data


def test_scan_data_dir(tmp_path: Path) -> None:
    data = tmp_path / "data"
    data.mkdir()
    move = {
        "description": "test",
        "time": [0.0, 0.5],
        "set_target_data": [{"head": [[1, 0, 0, 0]] * 4, "antennas": [0, 0], "body_yaw": 0.0}],
    }
    (data / "clip-one.json").write_text(json.dumps(move), encoding="utf-8")
    (data / "clip-one.wav").touch()
    clips = scan_data_dir(data, repo_id="test/repo")
    assert len(clips) == 1
    assert clips[0].move_id == "clip-one"
    assert clips[0].has_audio is True
    assert clips[0].duration_sec == pytest.approx(0.5)


def test_scan_local_performance_dir(tmp_path: Path) -> None:
    performance_dir = tmp_path / "custom" / "waka_waka"
    performance_dir.mkdir(parents=True)
    move = {
        "description": "test local clip",
        "time": [0.0, 1.5],
        "set_target_data": [{"head": [[1, 0, 0, 0]] * 4, "antennas": [0, 0], "body_yaw": 0.0}],
    }
    (performance_dir / "dance.json").write_text(json.dumps(move), encoding="utf-8")
    (performance_dir / "dance.wav").touch()
    (performance_dir / "preview.mp4").touch()
    (performance_dir / "manifest.json").write_text(
        json.dumps(
            {
                "id": "waka_waka",
                "title": "Waka Waka",
                "artist": "Shakira",
                "description": "Curated kids routine",
                "preview_video": "preview.mp4",
                "tags": ["kids", "energetic"],
            }
        ),
        encoding="utf-8",
    )

    clips = scan_local_performance_dir(performance_dir)
    assert len(clips) == 1
    clip = clips[0]
    assert clip.move_id == "waka_waka"
    assert clip.repo_id == LOCAL_REPO_ID
    assert clip.source_kind == "local"
    assert clip.title == "Waka Waka"
    assert clip.artist == "Shakira"
    assert clip.tags == ("kids", "energetic")
    assert clip.has_audio is True
    assert clip.preview_path is not None and clip.preview_path.name == "preview.mp4"
    assert clip.duration_sec == pytest.approx(1.5)


def test_lead_compensation_preserves_length() -> None:
    n = 10
    frames = [{"head": [[1, 0, 0, 0]] * 4, "antennas": [0.1, 0.2], "body_yaw": 0.05} for _ in range(n)]
    move = {"description": "x", "time": list(range(n)), "set_target_data": frames}
    out = LeadCompensationModel().transform_move(move)
    assert len(out["set_target_data"]) == n


def test_find_clip_json_path(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    from reachy_dance_tutor_app import config as cfg

    cache = tmp_path / "perf_cache"
    cache.mkdir()
    repo_root = cache / slug_repo_id("acme/demo")
    data = repo_root / "data"
    data.mkdir(parents=True)
    (data / "hello.json").write_text('{"description":"d","time":[0,1],"set_target_data":[{"x":1}]}', encoding="utf-8")

    monkeypatch.setattr(cfg.config, "PERFORMANCE_CACHE_DIR", str(cache))

    p = find_clip_json_path("hello", repo_id="acme/demo")
    assert p is not None and p.name == "hello.json"


def test_find_clip_json_path_local_performance(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    from reachy_dance_tutor_app import config as cfg

    cache = tmp_path / "perf_cache"
    cache.mkdir()
    local_root = tmp_path / "performances"
    performance_dir = local_root / "custom" / "waka_waka"
    performance_dir.mkdir(parents=True)
    (performance_dir / "dance.json").write_text(
        '{"description":"local","time":[0,2],"set_target_data":[{"head":[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]],"antennas":[0,0],"body_yaw":0}]}',
        encoding="utf-8",
    )
    (performance_dir / "dance.wav").touch()
    (performance_dir / "manifest.json").write_text(
        '{"id":"waka_waka","title":"Waka Waka","artist":"Shakira"}',
        encoding="utf-8",
    )

    monkeypatch.setattr(cfg.config, "PERFORMANCE_CACHE_DIR", str(cache))
    monkeypatch.setattr(cfg.config, "LOCAL_PERFORMANCE_DIR", str(local_root))

    p = find_clip_json_path("waka_waka", repo_id=LOCAL_REPO_ID)
    assert p is not None and p.name == "dance.json"


def test_find_clip_info_local_performance_custom_audio(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    from reachy_dance_tutor_app import config as cfg

    cache = tmp_path / "perf_cache"
    cache.mkdir()
    local_root = tmp_path / "performances"
    performance_dir = local_root / "custom" / "golden"
    performance_dir.mkdir(parents=True)
    (performance_dir / "dance.json").write_text(
        '{"description":"local","time":[0,2],"set_target_data":[{"head":[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]],"antennas":[0,0],"body_yaw":0}]}',
        encoding="utf-8",
    )
    (performance_dir / "golden.wav").touch()
    (performance_dir / "manifest.json").write_text(
        '{"id":"golden_kpop_demon_hunters","title":"Golden","artist":"KPOP Demon Hunters","motion":"dance.json","audio":"golden.wav"}',
        encoding="utf-8",
    )

    monkeypatch.setattr(cfg.config, "PERFORMANCE_CACHE_DIR", str(cache))
    monkeypatch.setattr(cfg.config, "LOCAL_PERFORMANCE_DIR", str(local_root))

    clip = find_clip_info("golden_kpop_demon_hunters", repo_id=LOCAL_REPO_ID)
    assert clip is not None
    assert clip.json_path.name == "dance.json"
    assert clip.audio_path is not None and clip.audio_path.name == "golden.wav"


def test_movement_manager_exclusive_skips_set_target() -> None:
    robot = MagicMock()
    robot.get_current_head_pose.return_value = np.eye(4, dtype=np.float64)
    robot.get_current_joint_positions.return_value = ([0.0, 0.0, 0.0], np.array([0.0, 0.0]))
    robot.set_target = MagicMock()
    mm = MovementManager(current_robot=robot, camera_worker=None)
    mm.start()
    try:
        assert mm.enter_exclusive_playback(timeout_s=3.0)
        assert mm.exclusive_playback_active() is True
        robot.set_target.reset_mock()
        time.sleep(0.25)
        robot.set_target.assert_not_called()
        assert mm.exit_exclusive_playback(timeout_s=3.0)
        assert mm.exclusive_playback_active() is False
    finally:
        mm.stop()


def test_movement_manager_exclusive_discards_new_commands_and_offsets() -> None:
    from reachy_mini.motion.move import Move

    class StaticMove(Move):
        @property
        def duration(self) -> float:
            return 0.15

        def evaluate(self, t: float) -> tuple[np.ndarray, np.ndarray, float]:
            return (
                np.eye(4, dtype=np.float64),
                np.array([0.25, -0.25], dtype=np.float64),
                0.4,
            )

    robot = MagicMock()
    robot.get_current_head_pose.return_value = np.eye(4, dtype=np.float64)
    robot.get_current_joint_positions.return_value = ([0.0, 0.0, 0.0], np.array([0.0, 0.0]))
    robot.set_target = MagicMock()
    mm = MovementManager(current_robot=robot, camera_worker=None)
    mm.idle_inactivity_delay = 10.0
    mm.start()
    try:
        assert mm.enter_exclusive_playback(timeout_s=3.0)
        robot.set_target.reset_mock()

        mm.set_speech_offsets((0.1, 0.2, 0.3, 0.4, 0.5, 0.6))
        mm.queue_move(StaticMove())
        time.sleep(0.25)

        assert mm.state.speech_offsets == (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)
        assert robot.set_target.call_count == 0

        assert mm.exit_exclusive_playback(timeout_s=3.0)
        time.sleep(0.25)
        assert not any(
            abs(call.kwargs.get("body_yaw", 0.0) - 0.4) < 1e-9 for call in robot.set_target.call_args_list
        )
    finally:
        mm.stop()


def test_play_performance_clip_releases_exclusive_on_preflight_failure(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    from reachy_dance_tutor_app.tools.play_performance_clip import PlayPerformanceClip
    import reachy_dance_tutor_app.tools.play_performance_clip as module

    json_path = tmp_path / "clip.json"
    json_path.write_text(
        '{"time":[0,1],"set_target_data":[{"head":[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]],"antennas":[0,0],"body_yaw":0}]}',
        encoding="utf-8",
    )

    clip = ClipInfo(
        move_id="clip",
        duration_sec=1.0,
        has_audio=False,
        description="",
        json_path=json_path,
        repo_id=LOCAL_REPO_ID,
    )
    monkeypatch.setattr(module, "find_clip_info", lambda move_id, repo_id=None: clip)
    monkeypatch.setattr(module, "sync_play_clip", lambda *args, **kwargs: {"ok": True})

    mm = MagicMock()
    mm.clear_move_queue = MagicMock()
    mm.enter_exclusive_playback.return_value = True
    mm.exit_exclusive_playback.return_value = True

    hw = MagicMock()
    hw.reset.side_effect = RuntimeError("boom")

    deps = MagicMock()
    deps.movement_manager = mm
    deps.head_wobbler = hw
    deps.reachy_mini = MagicMock()

    out = asyncio.run(PlayPerformanceClip()(deps, move_id="clip"))

    assert out["ok"] is False
    assert "boom" in out["error"]
    assert mm.clear_move_queue.called
    assert mm.enter_exclusive_playback.called
    assert mm.exit_exclusive_playback.called
    assert hw.set_performance_mode.call_args_list == [call(True), call(False)]


def test_play_performance_clip_uses_resolved_audio_path(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    from reachy_dance_tutor_app.tools.play_performance_clip import PlayPerformanceClip
    import reachy_dance_tutor_app.tools.play_performance_clip as module

    json_path = tmp_path / "dance.json"
    json_path.write_text(
        '{"time":[0,1],"set_target_data":[{"head":[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]],"antennas":[0,0],"body_yaw":0}]}',
        encoding="utf-8",
    )
    audio_path = tmp_path / "golden.wav"
    audio_path.touch()

    clip = ClipInfo(
        move_id="golden_kpop_demon_hunters",
        duration_sec=1.0,
        has_audio=True,
        description="Golden",
        json_path=json_path,
        repo_id=LOCAL_REPO_ID,
        source_kind="local",
        audio_path=audio_path,
    )

    captured: dict[str, object] = {}

    def fake_sync_play_clip(robot: object, resolved_json_path: Path, cancel_ev: object, *, sound_path: Path | None = None) -> dict[str, object]:
        captured["json_path"] = resolved_json_path
        captured["sound_path"] = sound_path
        return {"ok": True}

    monkeypatch.setattr(module, "find_clip_info", lambda move_id, repo_id=None: clip)
    monkeypatch.setattr(module, "sync_play_clip", fake_sync_play_clip)

    mm = MagicMock()
    mm.clear_move_queue = MagicMock()
    mm.enter_exclusive_playback.return_value = True
    mm.exit_exclusive_playback.return_value = True

    deps = MagicMock()
    deps.movement_manager = mm
    deps.head_wobbler = None
    deps.reachy_mini = MagicMock()

    out = asyncio.run(PlayPerformanceClip()(deps, move_id="golden_kpop_demon_hunters", repo_id=LOCAL_REPO_ID))

    assert out["ok"] is True
    assert captured["json_path"] == json_path
    assert captured["sound_path"] == audio_path


def test_move_head_uses_body_yaw_from_head_joints(monkeypatch: pytest.MonkeyPatch) -> None:
    import sys
    import types

    fake_pkg = types.ModuleType("reachy_mini_dances_library")
    fake_pkg.__path__ = []
    fake_dance_move = types.ModuleType("reachy_mini_dances_library.dance_move")

    class FakeDanceMove:
        def __init__(self, move_name: str) -> None:
            self.duration = 1.0

        def evaluate(self, t: float) -> tuple[np.ndarray, np.ndarray, float]:
            return np.eye(4, dtype=np.float64), np.array([0.0, 0.0], dtype=np.float64), 0.0

    fake_dance_move.DanceMove = FakeDanceMove
    monkeypatch.setitem(sys.modules, "reachy_mini_dances_library", fake_pkg)
    monkeypatch.setitem(sys.modules, "reachy_mini_dances_library.dance_move", fake_dance_move)

    from reachy_dance_tutor_app.tools.move_head import MoveHead
    import reachy_dance_tutor_app.tools.move_head as module

    captured: dict[str, object] = {}

    class FakeGotoQueueMove:
        def __init__(self, **kwargs: object) -> None:
            captured.update(kwargs)

    monkeypatch.setattr(module, "GotoQueueMove", FakeGotoQueueMove)

    mm = MagicMock()
    deps = MagicMock()
    deps.movement_manager = mm
    deps.motion_duration_s = 1.5
    deps.reachy_mini.get_current_head_pose.return_value = np.eye(4, dtype=np.float64)
    deps.reachy_mini.get_current_joint_positions.return_value = (
        [1.23, 0.0, 0.0],
        np.array([0.11, 0.22], dtype=np.float64),
    )

    out = asyncio.run(MoveHead()(deps, direction="left"))

    assert out == {"status": "looking left"}
    assert captured["start_body_yaw"] == 1.23
    assert captured["start_antennas"] == (0.11, 0.22)