// apps/hq/scripts/apply-name-fixes.ts — one-off (D35 data correction): apply the approved
// client-name corrections from name-review.json via the audited updateClient path.
//   REVIEW_JSON=<path> DATABASE_URL=postgres://… npx tsx apps/hq/scripts/apply-name-fixes.ts
// SQLite is never the default: to target a local SQLite database, opt in explicitly with
// HQ_DB_TARGET=sqlite (or the --sqlite flag). Without either, the script refuses to run.
import { readFileSync } from 'node:fs'
import { openDb, sqliteFilePath } from '../src/db'
import { openPgDb, pgTargetDescription, requireDbUrlForEnv } from '../src/db-pg'
import { updateClient } from '../src/repos-clients'
import type { DB } from '../src/db'

interface Row { id: string; current: string; suggested: string; changed: boolean }

async function main() {
  const path = process.env['REVIEW_JSON']
  if (path === undefined) throw new Error('Set REVIEW_JSON to the name-review.json path')
  const rows = JSON.parse(readFileSync(path, 'utf8')) as Row[]

  // Pre-ship audit FIX A: the SAME resolver server.ts uses (never re-derived locally) — and,
  // unlike the server, this one-off script hard-fails rather than silently falling back to a
  // throwaway SQLite file when NODE_ENV=production resolves no Postgres target.
  const pgUrl = requireDbUrlForEnv()
  if (pgUrl !== '') {
    console.log(`[db] engine: postgres ${pgTargetDescription(pgUrl)}`)
  } else {
    console.log(`[db] engine: sqlite at ${sqliteFilePath(process.env['HQ_DATA_DIR'])}`)
  }
  const db: DB = pgUrl !== '' ? await openPgDb(pgUrl) : openDb(process.env['HQ_DATA_DIR'])
  try {
    let applied = 0, skipped = 0
    for (const r of rows) {
      if (!r.changed || r.suggested === r.current) continue
      try {
        // Guard: only touch a client whose stored name still matches what was reviewed.
        const cur = await db.get<{ name: string }>(`SELECT name FROM client WHERE id=?`, r.id)
        if (cur === undefined || cur.name !== r.current) { skipped++; continue }
        await updateClient(db, 'system', r.id, { name: r.suggested })
        applied++
      } catch (e) {
        skipped++
        // eslint-disable-next-line no-console
        console.error(`  skip ${r.current}: ${e instanceof Error ? e.message : String(e)}`)
      }
    }
    // eslint-disable-next-line no-console
    console.log(`Name corrections: ${applied} applied, ${skipped} skipped.`)
  } finally {
    await db.close()
  }
}

main().catch((e) => { console.error(e); process.exit(1) })