import { mkdtempSync, rmSync, existsSync } from 'fs'
import { join } from 'path'
import { tmpdir } from 'os'
import { test, expect } from '@playwright/test'
import {
  launchApp,
  skipOnboarding,
  createBookAndOpenEditor,
  ensureChapterEditor,
  openExportModal,
  dismissCockpitIfOpen
} from './helpers'

test.describe('Pack export/import', () => {
  let userDataDir: string
  let packPath: string

  test.beforeEach(() => {
    userDataDir = mkdtempSync(join(tmpdir(), 'bilin-e2e-pack-'))
    packPath = join(userDataDir, 'roundtrip.novel')
  })

  test.afterEach(() => {
    if (userDataDir && existsSync(userDataDir)) {
      try {
        rmSync(userDataDir, { recursive: true, force: true, maxRetries: 3, retryDelay: 200 })
      } catch {
        /* ignore */
      }
    }
  })

  test('E2E-PACK-01: export .novel and re-import via UI', async () => {
    const app = await launchApp(userDataDir, {
      BILIN_E2E_PACK_SAVE: packPath,
      BILIN_E2E_PACK_IMPORT_FILE: packPath
    })
    const page = await app.firstWindow()
    await skipOnboarding(page)
    await createBookAndOpenEditor(page, 'Pack Roundtrip')
    await ensureChapterEditor(page)

    const editor = page.locator('.ProseMirror')
    await editor.click()
    await editor.pressSequentially('项目包导出导入测试正文。')
    await page.keyboard.press('Control+S')
    await expect(page.getByText('已保存')).toBeVisible({ timeout: 10_000 })

    await openExportModal(page)
    await page.getByTestId('export-kind-select').selectOption('novel')
    await page.getByTestId('export-novel-btn').click()
    await expect(page.getByText(/已导出/)).toBeVisible({ timeout: 15_000 })

    await page.evaluate(async (dest) => {
      const list = await window.electronAPI.book.list()
      if (!list.ok || !list.data?.length) throw new Error('no books')
      await window.electronAPI.book.delete(list.data[0].id)
    }, packPath)

    await page.getByRole('button', { name: /笔临|Bilin/i }).first().click()
    await expect(page.locator('#home-page')).toBeVisible({ timeout: 10_000 })

    await page.getByTestId('home-import-book').click()
    await expect(page.getByTestId('import-book-modal')).toBeVisible()
    await page.getByTestId('import-pick-file').click()
    await expect(page.getByTestId('import-pack-hint')).toBeVisible({ timeout: 10_000 })
    await page.getByTestId('import-execute-btn').click()
    await expect(page.locator('#editor-layout')).toBeVisible({ timeout: 30_000 })
    await dismissCockpitIfOpen(page)
    await expect(page.locator('.chapter-item')).toHaveCount(1, { timeout: 15_000 })

    await app.close()
  })
})