"""immich — pre-op seed hooks (Phase 1e HC3). Marker is a dedicated `ci_marker` row in postgres
(POSTGRES_USER=postgres, POSTGRES_DB=immich, password /run/secrets/db_password), written via psql in
the `database` service. The DB is backupbot-labelled (the recipe dumps postgres), so the marker rides
the backup→restore cycle. (The uploads/model-cache volumes are excluded from backup by the recipe;
the DB marker is the data-integrity probe.)"""

import os
import sys

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


def _psql(domain, sql):
    cmd = f'PGPASSWORD=$(cat /run/secrets/db_password) psql -U postgres -d immich -tAc "{sql}"'
    return lifecycle.exec_in_app(domain, ["sh", "-c", cmd], service="database").strip()


def _seed(domain, value):
    _psql(
        domain,
        "CREATE TABLE IF NOT EXISTS ci_marker(v text); DELETE FROM ci_marker; "
        f"INSERT INTO ci_marker VALUES('{value}');",
    )
    assert _psql(domain, "SELECT v FROM ci_marker;") == value


def pre_upgrade(ctx):
    _seed(ctx.domain, "upgrade-survives")


def pre_backup(ctx):
    _seed(ctx.domain, "original")


def pre_restore(ctx):
    _psql(ctx.domain, "DROP TABLE ci_marker;")
    assert _psql(ctx.domain, "SELECT to_regclass('public.ci_marker');") in (
        "",
        "NULL",
    ), "drop did not take"