"""
Right-click in the Files tab opens the shared `Menu` (`menu.js`) with what can
be done to that row — the toolbar's actions, from the same list.

The one difference from the toolbar is deliberate: the toolbar keeps an action
that does not apply, disabled, so it does not jump about as the selection
changes; a menu has no layout to keep still, so it leaves the action out.

Measured in a browser by `harness/files_menu_probe.py`.
"""

import json
import shutil
import subprocess
import sys
from pathlib import Path

import pytest

HARNESS = Path(__file__).parent / "harness" / "files_menu_probe.py"


@pytest.fixture(scope="module")
def cases():
    if shutil.which("google-chrome") is None:
        pytest.skip("Chrome is not available")
    proc = subprocess.run([sys.executable, str(HARNESS)],
                          capture_output=True, text=True, timeout=90)
    data = json.loads(proc.stdout)
    assert "error" not in data, f"probe failed: {proc.stdout}{proc.stderr}"
    assert not data["logs"], data["logs"]
    return {c["case"]: c for c in data["cases"]}


def test_a_folder_offers_the_zip_only(cases):
    c = cases["folder"]
    assert c["prevented"]
    assert c["labels"] == ["Download folder as zip"]


def test_a_video_of_ones_own_can_be_played_downloaded_and_deleted(cases):
    assert cases["own video"]["labels"] == ["Play", "Download", "Delete"]


def test_what_does_not_apply_is_left_out_not_greyed(cases):
    # Someone else's text file: no Play, no zip, and no Delete — the reader
    # has no right to it, so the entry is absent rather than disabled.
    assert cases["someone else's text"]["labels"] == ["View", "Download"]


def test_a_ticked_row_stands_for_the_whole_selection(cases):
    c = cases["ticked row stands for the selection"]
    assert c["ticked"] == 2
    assert c["labels"] == ["Download (2)", "Delete"]


def test_the_toolbar_still_greys_what_does_not_apply(cases):
    c = cases["toolbar keeps disabled buttons"]
    assert c["buttons"] == 5
    assert c["disabled"] == 3