import type { Fs } from './fs'

// hooks 沙箱沒有 node:fs，改用引擎的 $.fs；它沒有 rename，所以不提供（writeAtomic 會直接覆寫）
type EngineFs = {
  read(path: string): Promise<string>
  write(path: string, text: string): Promise<void>
  list(path?: string): Promise<{ name: string }[]>
}

export const engineFs = (fs: EngineFs): Fs => ({
  async read(path) {
    try {
      return await fs.read(path)
    } catch {
      return null
    }
  },
  write: (path, data) => fs.write(path, data),
  async list(dir) {
    try {
      return (await fs.list(dir)).map(e => e.name).filter(n => !n.endsWith('.tmp')).sort()
    } catch {
      return []
    }
  },
})