"""P3-2a tests: the mResumedActivity foreground parser (RESEARCH_SHIELD R4).

Fixture-driven from the on-device captures; the launcher case comes from the
R4-documented custom-launcher capture. Window-focus parsing is never used
(R4 finding 2: mCurrentFocus=null trap).
"""

from pathlib import Path

from nsh.ha_adb_common import parse_foreground

FIXTURES = Path(__file__).parent / "fixtures"

# R4: the on-device capture (grep -iE 'resumed') — the wrapped ActivityRecord
# plus tolerated Resumed/ResumedActivity duplicates.
_TIVIMATE_DUMP = (FIXTURES / "activity_activities_tivimate.txt").read_text()


def test_tivimate_fixture_primary_pattern():
    assert parse_foreground(_TIVIMATE_DUMP) == "ar.tvplayer.tv"


def test_launcher_foreground_from_r4_capture():
    # R4 finding 4: the user's custom launcher is a legitimate foreground app.
    dump = (
        "mResumedActivity: ActivityRecord{abcd1234 u0 com.spocky.projengmenu"
        "/.ui.home.MainActivity\n"
        "              state=RESUMED stopped=false delayedResume=false finishing=false\n"
    )
    assert parse_foreground(dump) == "com.spocky.projengmenu"


def test_multiline_wrap_joined_before_matching():
    # The wrap splits right after <pkg>/<activity>; the package must survive.
    dump = (
        "    mResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity\n"
        "    t8152}\n"
    )
    assert parse_foreground(dump) == "ar.tvplayer.tv"


def test_topresumed_only_fallback():
    # Newer firmware: no mResumedActivity, only topResumedActivity (checked after).
    dump = (
        "  topResumedActivity: ActivityRecord{aa11bb22 u0 com.other.app/.Main t1}\n"
    )
    assert parse_foreground(dump) == "com.other.app"


def test_topresumed_never_beats_primary():
    dump = (
        "  mResumedActivity: ActivityRecord{x u0 primary.pkg/.Main t1}\n"
        "  topResumedActivity: ActivityRecord{y u0 newer.pkg/.Main t2}\n"
    )
    assert parse_foreground(dump) == "primary.pkg"


def test_empty_and_garbage_return_none():
    assert parse_foreground("") is None
    assert parse_foreground("some random log lines\nwithout any resumed marker") is None


def test_resumed_duplicates_tolerated():
    # Resumed: / ResumedActivity: / mResumedActivity: all describe the same app.
    dump = (
        "      Resumed activities in task display areas (from top to bottom):\n"
        "        Resumed: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}\n"
        "      ResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}\n"
        "mResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}\n"
    )
    assert parse_foreground(dump) == "ar.tvplayer.tv"


def test_null_package_never_returned():
    dump = "mResumedActivity: ActivityRecord{4f0d030 u0 null/null t1}\n"
    assert parse_foreground(dump) is None