// 快速诊断：batch_sql_check 对含 xxx_col 的 INSERT 返回什么
// 用法：node 临时脚本放在项目根，直接 require
const fs = require('fs')
const path = require('path')
const os = require('os')
const TMP_DIR = fs.mkdtempSync(path.join(os.tmpdir(), 'cal_diag_'))
const BACKUP_DIR = path.join(process.cwd(), 'data', 'calendar_reminder_backups')
const latest = fs.readdirSync(BACKUP_DIR).filter(f => f.startsWith('calendar_reminder_2') && f.endsWith('.db')).sort().slice(-1)[0]
const SRC = path.join(BACKUP_DIR, latest)
const DST_DIR = path.join(process.cwd(), 'data', 'calendar_reminder_backups', '_diag')
fs.mkdirSync(DST_DIR, { recursive: true })
for (const suf of ['.db', '.db-wal', '.db-shm']) {
  fs.copyFileSync(SRC.replace(/\.db$/,'') + suf, path.join(DST_DIR, 'calendar_reminder' + suf))
}
const modSrc = fs.readFileSync(path.join(process.cwd(), 'src','server','calendar_reminder.js'), 'utf8')
const NEEDLE = "const DB_PATH = path.join(process.cwd(), 'data', 'calendar_reminder.db')"
if (!modSrc.includes(NEEDLE)) { throw new Error('NEEDLE NOT FOUND') }
const modTmp = path.join(process.cwd(), 'dev_test_scripts','unit','_calendar_reminder_diag.js')
fs.writeFileSync(modTmp, modSrc.replace(NEEDLE,
  'const DB_PATH = path.join(process.cwd(), "data/calendar_reminder_backups/_diag", "calendar_reminder.db")'))
const express = require('express')
const { createHash } = require('crypto')
const cookie = require('cookie')
const app = express()
app.use((req, res, next) => {
  req.headers.cookie = (req.headers.cookie || '') + '; calendar_reminder_gate=1'
  next()
})
const mod = require(modTmp)
mod.bindRoutes(app)
const PORT = 18795
const server = app.listen(PORT, '127.0.0.1', async () => {
  try {
    const badCol = `INSERT INTO events (title,xxx_col,start) VALUES ('t',1,'2026-09-02 09:00');`
    const http = require('http')
    const r = await new Promise((resolve, reject) => {
      const body = JSON.stringify({ sql_text: badCol })
      const req = http.request({ hostname: '127.0.0.1', port: PORT, path: '/api/calendar_reminder/batch_sql_check', method: 'POST', headers: { 'Content-Type': 'application/json', 'Content-Length': Buffer.byteLength(body) } }, res => {
        let buf = ''; res.on('data', d => buf += d); res.on('end', () => resolve({ status: res.statusCode, body: buf }))
      })
      req.on('error', reject); req.write(body); req.end()
    })
    console.log('STATUS', r.status)
    console.log('BODY', r.body)
    let j
    try { j = JSON.parse(r.body) } catch (e) { j = null }
    if (j) {
      console.log('col_errors length:', j.col_errors && j.col_errors.length)
      console.log('col_errors:', JSON.stringify(j.col_errors, null, 2))
      console.log('syntax_errors:', JSON.stringify(j.syntax_errors, null, 2))
      console.log('forbidden:', JSON.stringify(j.forbidden, null, 2))
      console.log('ok?', j.ok)
    }
    server.close(() => {
      fs.rmSync(DST_DIR, { recursive: true, force: true })
      fs.unlinkSync(modTmp)
    })
  } catch (e) {
    console.error(e)
    try { server.close() } catch {}
    try { fs.rmSync(DST_DIR, { recursive: true, force: true }) } catch {}
    try { fs.unlinkSync(modTmp) } catch {}
  }
})