"""Migration 0110's data step, DB-lane: an admin's interval override moves from `scheduler_settings`
into sysconfig and back, a row for a job that no longer exists is not carried over, and the unread
SponsorBlock default leaves the store.

The schema half is checked by test_migrations.py; a value lost on the way is invisible there.
"""

from alembic import command
from alembic.config import Config
from sqlalchemy import text

from app import scheduler
from app.db import engine


def _config(conn) -> dict[str, str]:
    return dict(conn.execute(text("SELECT key, value FROM system_config")).tuples().all())


def test_an_interval_override_moves_into_sysconfig_and_back(db):
    cfg = Config("alembic.ini")
    command.downgrade(cfg, "0109_job_runs")
    try:
        with engine.begin() as conn:
            conn.execute(
                text(
                    "INSERT INTO scheduler_settings (job_id, interval_minutes)"
                    " VALUES ('rss_poll', 25), ('log_gc', 90), ('retired_job', 5)"
                )
            )
            conn.execute(
                text(
                    "INSERT INTO system_config (key, value, encrypted) VALUES"
                    " ('sponsorblock_default', 'true', false), ('quota_daily_budget', '5000', false)"
                )
            )
    finally:
        command.upgrade(cfg, "head")

    with engine.connect() as conn:
        assert _config(conn) == {
            "job_interval_rss_poll": "25",
            "job_interval_log_gc": "90",
            "quota_daily_budget": "5000",
        }
        assert conn.execute(text("SELECT to_regclass('scheduler_settings')")).scalar() is None
    assert scheduler.load_intervals(db)["rss_poll"] == 25

    command.downgrade(cfg, "0109_job_runs")
    try:
        with engine.connect() as conn:
            back = conn.execute(text("SELECT job_id, interval_minutes FROM scheduler_settings"))
            assert dict(back.tuples().all()) == {"rss_poll": 25, "log_gc": 90}
            assert _config(conn) == {"quota_daily_budget": "5000"}
    finally:
        command.upgrade(cfg, "head")