"""Verifies arrow-key skips preserve whichever play/pause state the user
was already in, instead of always forcing a pause.

Calls the real MainWindow._seek_relative() method directly rather than
simulating the QShortcut keypress: QTest.keyClick against this shortcut was
observed to be unreliable in this headless setup even with Qt's
active-window state forced (see smoke_test_arrow_seek.py's note) --
sometimes the simulated key silently doesn't reach the shortcut at all, and
a debug script isolated that PlayerWidget.seek() itself works correctly
while playing, so the flakiness is in the synthetic-keypress dispatch, not
the app. The QShortcut -> _seek_relative wiring itself (a single line) was
already independently confirmed with real xdotool keypresses against a
live window in an earlier session.
"""
import sys
import time
from pathlib import Path

from PyQt6.QtWidgets import QApplication

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
import main as app_main

ROOT = Path(__file__).resolve().parent.parent
CLIP = str(ROOT / "test_media" / "sync_test_INSYNC.mp4")


def main():
    qapp = QApplication(sys.argv)
    win = app_main.MainWindow()
    win.show()
    qapp.processEvents()

    win._load(CLIP)
    qapp.processEvents()
    time.sleep(0.2)
    qapp.processEvents()

    # -- Case 1: paused before the skip -> stays paused after
    assert win.player.mpv.pause is True
    before_pos = win.player.get_position()
    win._seek_relative(5.0)
    qapp.processEvents()
    time.sleep(0.2)
    qapp.processEvents()
    after_pos = win.player.get_position()
    print(f"paused case: before={before_pos:.3f}s after={after_pos:.3f}s")
    assert win.player.mpv.pause is True, "should still be paused after skip"
    assert win.play_button.text() == "Play"
    assert after_pos > before_pos + 4.0, "should have actually skipped forward"
    print("PASS: stays paused across arrow-key skip when it started paused")

    # -- Case 2: playing before the skip -> stays playing after
    win.player.seek(0.0)
    win.player.play()
    win.play_button.setText("Pause")
    qapp.processEvents()
    time.sleep(0.2)
    before_pos = win.player.get_position()
    win._seek_relative(5.0)
    qapp.processEvents()
    time.sleep(0.2)
    qapp.processEvents()
    assert win.player.mpv.pause is False, "should still be playing after skip"
    assert win.play_button.text() == "Pause"
    after_pos = win.player.get_position()
    print(f"playing case: before={before_pos:.3f}s after={after_pos:.3f}s (should have jumped ~5s and kept playing)")
    assert after_pos > before_pos + 4.0, "should have actually skipped forward"

    win.player.shutdown()
    print("\nPRESERVE PLAY STATE SMOKE TEST PASSED")


if __name__ == "__main__":
    main()