export type ReadFileSuccessResult = {
  data: string
}


export type ReadFileSuccessCallback = (res: ReadFileSuccessResult) => void

export type ReadFileFailCallback = (res: UniError) => void

export type ReadFileCompleteCallback = (res: any) => void



export type ReadFileOptions = {
  /**
   * base64 / utf-8
   */
  encoding: string,
  /**
   * 文件路径，支持相对地址和绝对地址
   */
  filePath: string,
  /**
   * 接口调用的回调函数
   */
  success?: ReadFileSuccessCallback | null,
  /**
   * 接口调用失败的回调函数
   */
  fail?: ReadFileFailCallback | null,
  /**
   * 接口调用结束的回调函数（调用成功、失败都会执行）
   */
  complete?: ReadFileCompleteCallback | null
}


export type WriteFileSuccessResult = {
  filePath: string,
}


export type WriteFileSuccessCallback = (res: WriteFileSuccessResult) => void

export type WriteFileFailCallback = (res: UniError) => void

export type WriteFileCompleteCallback = (res: any) => void


export type WriteFileOptions = {
  /**
   * 文件路径，只支持绝对地址
   */
  filePath: string,
  /**
   * 写入的文本内容
   */
  data: string,
  /**
   * 接口调用的回调函数
   */
  success?: WriteFileSuccessCallback | null,
  /**
   * 接口调用失败的回调函数
   */
  fail?: WriteFileFailCallback | null,
  /**
   * 接口调用结束的回调函数（调用成功、失败都会执行）
   */
  complete?: WriteFileCompleteCallback | null
}


export interface FileSystemManager {
  readFile(config: ReadFileOptions): void;
  writeFile(config: WriteFileOptions): void;
}


export type GetFileSystemManager = () => FileSystemManager;


export interface Uni {
  /**
   * 获取文件管理器
   * @uniPlatform {
   *    "app": {
   *        "android": {
   *            "osVer": "4.4.4",
   *            "uniVer": "√",
   *            "unixVer": "3.9.0"
   *        },
   *        "ios": {
   *            "osVer": "x",
   *            "uniVer": "x",
   *            "unixVer": "x"
   *   	  }
   *    }
   * }
   * @uniVueVersion 2,3  //支持的vue版本
   */
  getFileSystemManager: GetFileSystemManager
}