"""Check that a routine Nextcloud restart preserves installed app files."""

from pathlib import Path
import shlex
import subprocess

import yaml


ROOT = Path(__file__).resolve().parents[2]


def functions(tmp_path: Path) -> str:
    """Extract the deployed shell functions into a synthetic filesystem."""
    manifest = yaml.safe_load((ROOT / "services/nextcloud/deployment.yaml").read_text())
    containers = manifest["spec"]["template"]["spec"]["initContainers"]
    script = next(c for c in containers if c["name"] == "install-nextcloud")["args"][0]
    start = script.index("  install_app() {")
    end = script.index("  ensure_mime_defaults\n", start)
    return script[start:end].replace("/var/www/html", str(tmp_path))


def test_existing_apps_need_no_download_or_reinstallation(tmp_path: Path):
    """Unchanged app files survive without network or CLI configuration calls."""
    app = tmp_path / "custom_apps" / "synthetic"
    (app / "appinfo").mkdir(parents=True)
    (app / "appinfo/info.xml").write_text("<info/>")
    preserved = app / "keep.txt"
    preserved.write_text("original")
    shell = functions(tmp_path) + """
curl() { exit 91; }
su() { exit 92; }
install_app synthetic https://invalid.example/test.tar.gz
ensure_app synthetic
"""
    subprocess.run(["sh", "-eu", "-c", shell], check=True)
    assert preserved.read_text() == "original"


def test_failed_download_preserves_existing_directory(tmp_path: Path):
    """A failed first install never removes an existing incomplete app tree."""
    app = tmp_path / "custom_apps" / "synthetic"
    app.mkdir(parents=True)
    (app / "keep.txt").write_text("original")
    shell = functions(tmp_path) + """
curl() { return 1; }
if install_app synthetic https://invalid.example/test.tar.gz; then exit 93; fi
"""
    subprocess.run(["sh", "-eu", "-c", shell], check=True)
    assert (app / "keep.txt").read_text() == "original"
    assert not list((tmp_path / "custom_apps").glob(".bootstrap-*"))