import test from 'brittle'
import { readFile } from 'node:fs/promises'
import { dirname, join } from 'node:path'
import { fileURLToPath } from 'node:url'

const __dirname = dirname(fileURLToPath(import.meta.url))
const tuiPath = join(__dirname, '../lib/edit-tui.js')
const kernelEditPath = join(__dirname, '../../../kernel/bin/edit')

test('edit-tui finally tears down alternate screen or clears display', async (t) => {
  const src = await readFile(tuiPath, 'utf8')
  t.ok(src.includes('[?1049h'), 'expected alternate-screen enter when alt mode enabled')
  t.ok(src.includes('[?1049l'), 'expected alternate-screen leave in finally')
  t.ok(
    (src.match(/\\x1b\[2J\\x1b\[H/g) || []).length >= 2,
    'expected full clear sequence in draw and in finally fallback'
  )
  t.ok(src.includes('BARE_EDIT_NO_ALTSCREEN'), 'expected env gate for alternate screen')
  t.ok(src.includes('[?2004h'), 'expected bracketed paste enable when enabled')
  t.ok(src.includes('[?2004l'), 'expected bracketed paste disable in finally')
  t.ok(src.includes('BARE_EDIT_NO_BRACKETED_PASTE'), 'expected env gate for bracketed paste')
})

test('shipped kernel/bin/edit includes TTY teardown escapes', async (t) => {
  const bin = await readFile(kernelEditPath, 'utf8')
  t.ok(bin.includes('[?1049h'), 'kernel edit should enter alternate screen')
  t.ok(bin.includes('[?1049l'), 'kernel edit should leave alternate screen in finally')
  t.ok(bin.includes('[?2004l'), 'kernel edit should disable bracketed paste in finally')
  t.ok(
    (bin.match(/\\x1b\[2J\\x1b\[H/g) || []).length >= 2,
    'kernel edit should full-clear in draw and finally fallback'
  )
})