// 编辑器窗格加载状态：编辑器创建完成前显示「正在打开文档…」，就绪后撤下并回传 API。
import { describe, it, expect, vi } from 'vitest'
import { createRoot } from 'react-dom/client'
import { act } from 'react-dom/test-utils'

let resolveCreate: (() => void) | null = null
const fakeEditor = {
  create: () => new Promise<void>((resolve) => { resolveCreate = resolve }),
  destroy: () => Promise.resolve(),
  action: (fn: (ctx: unknown) => unknown) => fn({ get: () => { throw new Error('no view in test') } }),
}

vi.mock('../src/editor/editor', () => ({
  createMarkdownEditor: () => fakeEditor,
  getMarkdown: () => '',
}))

import EditorPane from '../src/components/EditorPane'

describe('EditorPane 加载状态', () => {
  it('创建未完成时显示加载提示，完成后撤下并回传就绪 API', async () => {
    const container = document.createElement('div')
    document.body.appendChild(container)
    const root = createRoot(container)
    const readyApis: unknown[] = []
    await act(async () => {
      root.render(
        <EditorPane
          tabId="t1"
          initialMarkdown="# 大文档"
          onMarkdown={() => undefined}
          onCursor={() => undefined}
          onReady={(api) => readyApis.push(api)}
          focusMode={false}
          typewriter={false}
        />,
      )
    })
    expect(container.textContent).toContain('正在打开文档')
    expect(readyApis).toHaveLength(0)

    await act(async () => { resolveCreate?.() })
    expect(container.textContent).not.toContain('正在打开文档')
    expect(readyApis).toHaveLength(1)
    expect((readyApis[0] as { editor: unknown }).editor).toBe(fakeEditor)

    await act(async () => { root.unmount() })
    container.remove()
  })
})