import { query } from "./db";

// ── 数据时间边界 ────────────────────────────────────────────────

export async function getDateRange(): Promise<{ minDate: string; maxDate: string }> {
  const rows = await query(
    `SELECT
       ((MIN(to_timestamp(created_at)) AT TIME ZONE 'Asia/Shanghai')::date)::text as min_date,
       ((MAX(to_timestamp(created_at)) AT TIME ZONE 'Asia/Shanghai')::date)::text as max_date
     FROM logs WHERE type = 2`
  );
  return { minDate: rows[0]?.min_date ?? "", maxDate: rows[0]?.max_date ?? "" };
}