"""Job intervals move into sysconfig; the unread SponsorBlock default goes

Revision ID: 0110_intervals_in_sysconfig
Revises: 0109_job_runs
Create Date: 2026-10-18

An admin's interval override lived in its own table, `scheduler_settings`, beside the one store every
other admin knob uses. Each override becomes the `job_interval_<job>` sysconfig key and the table
goes. Only the jobs that still exist are copied: a row for any other id never did anything.

The `sponsorblock_default` setting was offered on the Configuration page but nothing ever read it, so
its key is gone and its stored value with it — the downgrade cannot bring that value back.
"""

import sqlalchemy as sa
from alembic import op

revision: str = "0110_intervals_in_sysconfig"
down_revision: str | None = "0109_job_runs"
branch_labels: str | None = None
depends_on: str | None = None

# The interval jobs as of this revision (a migration does not read the live code's list).
_JOBS = (
    "rss_poll",
    "enrich",
    "backfill",
    "autotag",
    "shorts",
    "subscriptions",
    "playlist_sync",
    "maintenance",
    "explore_cleanup",
    "download_gc",
    "plex_sync",
    "plex_watch_sync",
    "plex_watch_reconcile",
    "tmdb_enrich",
    "people_enrich",
    "audit_gc",
    "log_gc",
)
_PREFIX = "job_interval_"


def upgrade() -> None:
    op.execute(
        sa.text(
            "INSERT INTO system_config (key, value, encrypted)"
            " SELECT :prefix || job_id, interval_minutes::text, false FROM scheduler_settings"
            " WHERE interval_minutes IS NOT NULL AND job_id IN :jobs"
            " ON CONFLICT (key) DO NOTHING"
        ).bindparams(sa.bindparam("jobs", expanding=True), prefix=_PREFIX, jobs=list(_JOBS))
    )
    op.drop_table("scheduler_settings")
    op.execute("DELETE FROM system_config WHERE key = 'sponsorblock_default'")


def downgrade() -> None:
    op.create_table(
        "scheduler_settings",
        sa.Column("job_id", sa.String(40), primary_key=True),
        sa.Column("interval_minutes", sa.Integer(), nullable=False),
    )
    op.execute(
        sa.text(
            "INSERT INTO scheduler_settings (job_id, interval_minutes)"
            " SELECT substr(key, :start), value::int FROM system_config WHERE key IN :keys"
        ).bindparams(
            sa.bindparam("keys", expanding=True),
            start=len(_PREFIX) + 1,
            keys=[_PREFIX + j for j in _JOBS],
        )
    )
    op.execute(
        sa.text("DELETE FROM system_config WHERE key IN :keys").bindparams(
            sa.bindparam("keys", expanding=True), keys=[_PREFIX + j for j in _JOBS]
        )
    )