interface UploadNProgress {
  start: (msg?: string) => void;
  done: () => void;
  set: (progress: number) => void;
}
export type UploadProgressData = {
  progress: number;
  progressFixed: number;
  filename?: string;
  taskId?: string;
};
type UploadProgressOpts = {
  onStart?: () => void;
  onDone?: () => void;
  onProgress?: (progress: number, data?: UploadProgressData) => void;
};
export class UploadProgress implements UploadNProgress {
  /**
   * 进度
   */
  progress: number;
  /**
   * 开始回调
   */
  onStart: (() => void) | undefined;
  /**
   * 结束回调
   */
  onDone: (() => void) | undefined;
  /**
   * 消息回调
   */
  onProgress: ((progress: number, data?: UploadProgressData) => void) | undefined;
  /**
   * 数据
   */
  data: any;
  /**
   * 是否结束
   */
  end: boolean;
  constructor(uploadOpts: UploadProgressOpts) {
    this.progress = 0;
    this.end = false;
    const mockFn = () => {};
    this.onStart = uploadOpts.onStart || mockFn;
    this.onDone = uploadOpts.onDone || mockFn;
    this.onProgress = uploadOpts.onProgress || mockFn;
  }
  start(msg?: string) {
    this.progress = 0;
    msg && this.info(msg);
    this.end = false;
    this.onStart?.(); 
  }
  done() {
    this.progress = 100;
    this.end = true;
    this.onDone?.();
  }
  set(progress: number, data?: UploadProgressData) {
    this.progress = progress;
    this.data = data;
    this.onProgress?.(progress, data);
    console.log('uploadProgress set', progress, data);
  }
  /**
   * 开始回调
   */
  setOnStart(callback: () => void) {
    this.onStart = callback;
  }
  /**
   * 结束回调
   */
  setOnDone(callback: () => void) {
    this.onDone = callback;
  }
  /**
   * 消息回调
   */
  setOnProgress(callback: (progress: number, data?: UploadProgressData) => void) {
    this.onProgress = callback;
  }
  /**
   * 打印信息
   */
  info(msg: string) {
    console.log(msg);
  }
  /**
   * 打印错误
   */
  error(msg: string) {
    console.error(msg);
  }
  /**
   * 打印警告
   */
  warn(msg: string) {
    console.warn(msg);
  }
}