/**
 * 09-preview: 预览——FS 图标类型判断
 */
import { describe, it, expect, beforeEach } from 'vitest'
import { fs } from '../../src/composables/useFS'

describe('09-preview — 预览类型判断', () => {
  beforeEach(() => { localStorage.clear(); (fs as any).root = null; fs.init() })

  it('图片扩展名返回 preview 图标', () => {
    fs.write(fs.HOME + '/test.png', '')
    fs.write(fs.HOME + '/test.jpg', '')
    fs.write(fs.HOME + '/test.webp', '')
    expect(fs.iconFor(fs.HOME + '/test.png')).toContain('preview')
    expect(fs.iconFor(fs.HOME + '/test.jpg')).toContain('preview')
    expect(fs.iconFor(fs.HOME + '/test.webp')).toContain('preview')
    fs.remove(fs.HOME + '/test.png')
    fs.remove(fs.HOME + '/test.jpg')
    fs.remove(fs.HOME + '/test.webp')
  })

  it('PDF 返回 pdf 图标', () => {
    fs.write(fs.HOME + '/test.pdf', '')
    expect(fs.iconFor(fs.HOME + '/test.pdf')).toContain('pdf')
    fs.remove(fs.HOME + '/test.pdf')
  })

  it('文本文件返回 txt 图标', () => {
    expect(fs.iconFor(fs.HOME + '/Desktop/welcome.txt')).toContain('txt')
  })

  it('kindOf 正确分类', () => {
    expect(fs.kindOf(fs.HOME + '/Desktop')).toBe('文件夹')
    fs.write(fs.HOME + '/kind-test.png', '')
    expect(fs.kindOf(fs.HOME + '/kind-test.png')).toBe('文件')
    fs.remove(fs.HOME + '/kind-test.png')
  })

  it('不存在文件返回默认图标', () => {
    const icon = fs.iconFor('/nonexistent/path.txt')
    expect(icon).toContain('txt') // 默认回退
  })

  it('mimeOf 返回正确 MIME 类型', () => {
    expect(fs.mimeOf('doc.txt')).toBe('text/plain')
    expect(fs.mimeOf('readme.md')).toBe('text/markdown')
    expect(fs.mimeOf('data.json')).toBe('application/json')
  })
})