"""Tests for the running-apps list builder (recent tasks + media sessions)."""

from ha_adb_common.running_apps import running_apps_from_tasks


def _session(package: str, playing: bool = False, title: str | None = None):
    from ha_adb_common.media_session import MediaSessionInfo

    s = MediaSessionInfo(package=package)
    s.playing = playing
    s.paused = not playing
    s.title = title
    return s


def test_returns_none_for_fewer_than_two_tasks():
    assert running_apps_from_tasks([]) is None
    assert running_apps_from_tasks([{"package": "app.a"}]) is None


def test_marks_foreground_and_defaults_to_running():
    tasks = [{"package": "app.a"}, {"package": "app.b"}]
    apps = running_apps_from_tasks(tasks, [], foreground_package="app.b")
    assert apps is not None
    assert len(apps) == 2
    by_pkg = {a["package"]: a for a in apps}
    assert "foreground" not in by_pkg["app.a"]
    assert by_pkg["app.b"]["foreground"] is True
    assert by_pkg["app.a"]["state"] == "running"


def test_enriches_with_media_session_state():
    tasks = [{"package": "app.a"}, {"package": "app.b"}]
    sessions = [_session("app.a", playing=True, title="Song")]
    apps = running_apps_from_tasks(tasks, sessions)
    assert apps is not None
    by_pkg = {a["package"]: a for a in apps}
    assert by_pkg["app.a"]["state"] == "playing"
    assert by_pkg["app.a"]["title"] == "Song"
    assert by_pkg["app.b"]["state"] == "running"