maintenance: pure-logic ticker decides forget/prune/check fires

internal/store/maintenance.go

@@ -50,6 +50,40 @@ func (st *Store) GetRepoMaintenance(ctx context.Context, hostID string) (*HostRe
 	return &m, nil
 }
 
+// ListAllMaintenance returns every host_repo_maintenance row.
+// Used by the server-side maintenance ticker to iterate every
+// host on each tick. Order is unspecified (the ticker doesn't
+// care).
+func (st *Store) ListAllMaintenance(ctx context.Context) ([]HostRepoMaintenance, error) {
+	rows, err := st.db.QueryContext(ctx,
+		`SELECT host_id, forget_cron, forget_enabled,
+			prune_cron, prune_enabled,
+			check_cron, check_enabled, check_subset_pct
+		 FROM host_repo_maintenance`)
+	if err != nil {
+		return nil, fmt.Errorf("store: list all maintenance: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+	var out []HostRepoMaintenance
+	for rows.Next() {
+		var (
+			m                                         HostRepoMaintenance
+			forgetEnabled, pruneEnabled, checkEnabled int
+		)
+		if err := rows.Scan(&m.HostID,
+			&m.ForgetCron, &forgetEnabled,
+			&m.PruneCron, &pruneEnabled,
+			&m.CheckCron, &checkEnabled, &m.CheckSubsetPct); err != nil {
+			return nil, fmt.Errorf("store: scan maintenance: %w", err)
+		}
+		m.ForgetEnabled = forgetEnabled != 0
+		m.PruneEnabled = pruneEnabled != 0
+		m.CheckEnabled = checkEnabled != 0
+		out = append(out, m)
+	}
+	return out, rows.Err()
+}
+
 // UpdateRepoMaintenance replaces every editable field. Doesn't bump
 // the schedule version — these run on the server's own ticker, not
 // the agent's local cron, so the agent doesn't need to know.