/**
 * Wails Transport — 本地文件操作（通过 Wails v3 IPC）
 */

import type { FsTransport, FileItem, FileOperationResult, DetectTypeResult } from './transport'
import { transformFile, transformFileList, joinPath } from './transport'
import {
  ListDir, GetFileInfo, ReadFile, WriteFile, SaveBase64File,
  CreateFile, CreateDir, DeletePath, RenamePath, CopyPath, MovePath,
  ListZipContents, ExtractFileFromZip, ExtractFileFromZipToTemp, GetZipFileInfo,
  OpenPath, GetFileServerURL, ResolveShortcut, DetectFileTypeByContent,
  GetCommonPaths, GetRecycleBinEntries, RestoreFromRecycleBin,
  DeletePermanently, EmptyRecycleBin,
  WatchFile, UnwatchFile
} from '../wailsjs/v3-bindings/u-desk/app'

export class WailsTransport implements FsTransport {
  async listDir(path: string): Promise<FileItem[]> {
    // 蛇形→驼峰转换统一由 system.ts 的 toFileItemList 完成，此处仅类型适配
    return transformFileList(await ListDir(path))
  }

  async getFileInfo(path: string): Promise<Record<string, any>> {
    return GetFileInfo(path)
  }

  async readFile(path: string): Promise<string> {
    return ReadFile(path)
  }

  async writeFile(path: string, content: string): Promise<void> {
    await WriteFile({ path: String(path), content: String(content) })
  }

  async saveBase64File(path: string, content: string): Promise<void> {
    if (!content) throw new Error('无效的 base64 内容')
    await SaveBase64File({ path: String(path), content })
  }

  async createFile(dirPath: string, filename: string): Promise<FileOperationResult> {
    return CreateFile(joinPath(dirPath, filename))
  }

  async createDir(parentPath: string, dirname: string): Promise<FileOperationResult> {
    return CreateDir(joinPath(parentPath, dirname))
  }

  async deletePath(path: string): Promise<FileOperationResult> {
    return DeletePath(path)
  }

  async renamePath(oldPath: string, newPath: string): Promise<FileOperationResult> {
    return RenamePath({ oldPath: String(oldPath), newPath: String(newPath) })
  }

  async copyPath(src: string, dst: string): Promise<void> {
    await CopyPath(String(src), String(dst))
  }

  async movePath(src: string, dst: string): Promise<void> {
    await MovePath(String(src), String(dst))
  }

  async downloadToFile(path: string, _localDstDir: string): Promise<string> {
    return path // 本地文件无需下载
  }

  async uploadFromFile(_localPath: string, _remoteDir: string): Promise<void> {
    // 本地面板无上传语义（外部文件拖入走 copyPath）
  }

  async listZipContents(zipPath: string): Promise<FileItem[]> {
    return transformFileList(await ListZipContents(zipPath))
  }

  async extractFileFromZip(zipPath: string, filePath: string): Promise<string> {
    return ExtractFileFromZip(zipPath, filePath)
  }

  async extractFileFromZipToTemp(zipPath: string, filePath: string): Promise<string> {
    return ExtractFileFromZipToTemp(zipPath, filePath)
  }

  async getZipFileInfo(zipPath: string, filePath: string): Promise<FileItem> {
    return transformFile(await GetZipFileInfo(zipPath, filePath))
  }

  async openPath(path: string): Promise<void> {
    await OpenPath(path)
  }

  async getFileServerURL(): Promise<string> {
    return GetFileServerURL()
  }

  getPreviewToken(): string {
    return '' // 本地模式无需 token
  }

  async resolveShortcut(lnkPath: string): Promise<any> {
    return ResolveShortcut(lnkPath)
  }

  async detectFileTypeByContent(path: string): Promise<DetectTypeResult> {
    const result = await DetectFileTypeByContent(path)
    return result as unknown as DetectTypeResult
  }

  async getCommonPaths(): Promise<Record<string, string>> {
    return GetCommonPaths()
  }

  async getRecycleBinEntries(): Promise<any[]> {
    return GetRecycleBinEntries()
  }

  async restoreFromRecycleBin(path: string): Promise<void> {
    await RestoreFromRecycleBin(path)
  }

  async deletePermanently(path: string): Promise<void> {
    await DeletePermanently(path)
  }

  async emptyRecycleBin(): Promise<void> {
    await EmptyRecycleBin()
  }

  async downloadForPreview(path: string): Promise<string> {
    return path
  }

  async watchFile(path: string): Promise<void> {
    await WatchFile(path)
  }

  async unwatchFile(): Promise<void> {
    await UnwatchFile()
  }
}