import moment from 'moment';
import type { Field, FieldDataSource } from '@formily/core';
import { action } from '@formily/reactive';
import Token from '@/utils/token';

/**
 * 下载文件
 * @param url 下载链接
 * @param params 参数
 */
export const downloadFile = (url: string, params?: Record<string, any>) => {
  const formElement = document.createElement('form');
  formElement.style.display = 'display:none;';
  formElement.method = 'GET';
  formElement.action = url;
  // 添加参数
  if (params) {
    Object.keys(params).forEach((key: string) => {
      const inputElement = document.createElement('input');
      inputElement.type = 'hidden';
      inputElement.name = key;
      inputElement.value = params[key];
      formElement.appendChild(inputElement);
    });
  }
  const inputElement = document.createElement('input');
  inputElement.type = 'hidden';
  inputElement.name = ':X_Access_Token';
  inputElement.value = Token.get();
  formElement.appendChild(inputElement);
  document.body.appendChild(formElement);
  formElement.submit();
  document.body.removeChild(formElement);
};
/**
 * 把数据下载成JSON
 * @param record
 * @param fileName
 */
export const downloadObject = (record: Record<string, unknown>, fileName: string) => {
  // 创建隐藏的可下载链接
  const ghostLink = document.createElement('a');
  ghostLink.download = `${fileName}-${
    record?.name || moment(new Date()).format('YYYY/MM/DD HH:mm:ss')
  }.json`;
  ghostLink.style.display = 'none';
  //字符串内容转成Blob地址
  const blob = new Blob([JSON.stringify(record)]);
  ghostLink.href = URL.createObjectURL(blob);
  //触发点击
  document.body.appendChild(ghostLink);
  ghostLink.click();
  //移除
  document.body.removeChild(ghostLink);
};

export const useAsyncDataSource =
  (services: (arg0: Field) => Promise<FieldDataSource>) => (field: Field) => {
    field.loading = true;
    services(field).then(
      action.bound!((resp: any) => {
        field.dataSource = resp;
        field.loading = false;
      }),
    );
  };

export const getDateFormat = (
  date: moment.MomentInput,
  format: string = 'YYYY-MM-DD HH:mm:ss',
): string => {
  return date ? moment(date).format(format) : '-';
};

/**
 * 扁平化树数组
 */
export const flattenArray: any = (arr: any[]) => {
  return arr.reduce((result, item) => {
    return result.concat(item, Array.isArray(item.children) ? flattenArray(item.children) : []);
  }, []);
};
/**
 * 判断是否为正确的IP地址
 */
export const testIP = (str: string) => {
  const re =
    /^([0-9]|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.([0-9]|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.([0-9]|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.([0-9]|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])$/;
  return re.test(str);
};