"""mumble — BACKUP overlay (Phase 1e HC3 / Phase 2 P4): assertion-only + additive.

ops.pre_backup seeded ci_marker='original' into /data/mumble-server.sqlite before the backup op
(the recipe's backupbot pre-hook `.backup`s that exact file). The orchestrator performed the backup
once (generic tier asserted a snapshot artifact). This overlay ADDS: the seeded row is intact at
backup time. The backup→restore divergence (dropping the table) is in ops.pre_restore.
"""

import os
import sys

sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "runner"))
from harness import lifecycle  # noqa: E402

DB = "/data/mumble-server.sqlite"


def _sqlite(domain, sql):
    cmd = f'sqlite3 {DB} "PRAGMA busy_timeout=20000; {sql}"'
    return lifecycle.exec_in_app(domain, ["sh", "-c", cmd], service="app").strip()


def test_backup_captures_state(live_app):
    assert _sqlite(live_app, "SELECT v FROM ci_marker;") == "original", (
        "the seeded mumble sqlite marker was not present at backup time"
    )