// 一次性 DB 维护：恢复被 INSERT OR IGNORE + deleted=1 阻塞的 3 条缓存，
// 清理无 DB 引用的孤儿音频文件。用法：node dev_test_scripts/debug/debug_tts_db_fix.js
const fs = require('fs')
const path = require('path')
const db = require('better-sqlite3')('data/mp_rep_clock.db')

const FIX = {
  '还有5秒': 'rc_1788857916346_c9bb0cc4.wav',
  '还有3秒': 'rc_1788857916424_0d8f7e90.wav',
  '本次训练结束，辛苦了': 'rc_1788857916507_e06bd852.wav',
}

let recovered = 0
for (const [text, file] of Object.entries(FIX)) {
  const abs = path.join(process.cwd(), 'uploads', 'mp_rep_clock', 'tts_cache', file)
  if (!fs.existsSync(abs)) { console.log('[skip 文件不存在]', file); continue }
  const info = db.prepare('UPDATE rc_tts_cache SET deleted=0, url=? WHERE text=? AND voice=?')
    .run('/uploads/mp_rep_clock/tts_cache/' + file, text, 'female_01')
  console.log('[fix]', text, '->', file, 'affected rows:', info.changes)
  recovered += info.changes
}

// 清理有文件但没有任何 active 缓存行引用的孤儿
const activeUrls = db.prepare('SELECT url FROM rc_tts_cache WHERE deleted=0').all().map(r => r.url)
const cacheDir = path.join(process.cwd(), 'uploads', 'mp_rep_clock', 'tts_cache')
let orphans = 0
for (const f of fs.readdirSync(cacheDir)) {
  const rel = '/uploads/mp_rep_clock/tts_cache/' + f
  if (!activeUrls.includes(rel)) {
    try { fs.unlinkSync(path.join(cacheDir, f)); orphans++; console.log('[orphan-del]', f) } catch (_) {}
  }
}

console.log('[result] 恢复缓存行:', recovered, '; 删除孤儿文件:', orphans)
console.log('[result] active 缓存条数:', db.prepare('SELECT COUNT(*) c FROM rc_tts_cache WHERE deleted=0').get().c)
console.log('[result] active 缓存列表:')
db.prepare('SELECT text, url FROM rc_tts_cache WHERE deleted=0 ORDER BY text').all().forEach(r => console.log('  ', r.text, '=>', r.url))