/** 批量列出会话档位：id / 创建时间 / preset / sandbox mode / approval / turn 数 */
 * 会话取证 · 批量对比各会话 preset/sandbox/approval（定位"老会话档位未跟随平台默认"的关键工具）
import { readFileSync } from 'node:fs'
import { zstdDecompressSync } from 'node:zlib'

const MAGIC = Buffer.from([0x28, 0xb5, 0x2f, 0xfd])
const t = (ms) => new Date(Number(ms)).toLocaleString('zh-CN', { hour12: false, timeZone: 'Asia/Shanghai' })

for (const file of process.argv.slice(2)) {
  const raw = readFileSync(file)
  const offs = []
  for (let i = 0; i + 4 <= raw.length; i++) if (raw.compare(MAGIC, 0, 4, i, i + 4) === 0) offs.push(i)
  let text = ''
  for (let f = 0; f < (offs.length ? offs : [0]).length; f++) {
    const s = offs[f], e = f + 1 < offs.length ? offs[f + 1] : raw.length
    try { text += zstdDecompressSync(raw.subarray(s, e)).toString('utf8') } catch {}
  }
  const evs = []
  for (const l of text.split('\n')) { if (!l.trim()) continue; try { evs.push(JSON.parse(l)) } catch {} }
  const meta = evs.find((e) => e.type === 'session')
  const uniq = (ty, f) => [...new Set(evs.filter((e) => e.type === ty).map(f))].join(',')
  const tl = text.match(/"text":"([^"]{0,60})"/g)?.slice(0, 1)?.join('') ?? ''
  console.log(
    '%s | 创建 %s | preset=%s | sandbox=%s | approval=%s | turns=%d | %d 事件',
    (meta?.id ?? '?').slice(-12),
    t(meta?.createdAt), uniq('permission/preset', (e) => e.data?.preset), uniq('sandbox/mode', (e) => e.data?.mode),
    uniq('approval/policy', (e) => e.data?.policy), evs.filter((e) => e.type === 'turn/start').length, evs.length,
  )
}