import request from "@/utils/request";
import { Message } from "element-ui";

export function delay(ms = 240) {
  return new Promise((resolve) => setTimeout(() => resolve(void 0), ms));
}

/**
 *
 * @param {{ method?: string; url: string; data?: string; type?: string; filename?: string; }} options
 */
export function exportFile({
  url,
  method = "post",
  data,
  type = "application/vnd.ms-excel",
  filename = "download",
  ext = "xlsx",
} = {}) {
  if (!url) return;
  const loadingMessage = Message.info({
    message: `文件下载中...`,
    duration: 0,
    customClass: "loading-message",
    iconClass: "el-icon-loading",
  });

  request({
    url,
    method,
    responseType: "blob",
    data: {
      ...data,
    },
    params: {
      ...data,
    },
  })
    .then((result) => {
      const blob = new Blob([result], { type });
      const downloadElement = document.createElement("a");
      const href = window.URL.createObjectURL(blob);
      downloadElement.href = href;
      downloadElement.download = result.filename || `${filename}.${ext}`;
      document.body.appendChild(downloadElement);
      downloadElement.click();
      document.body.removeChild(downloadElement);
      window.URL.revokeObjectURL(href);

      Message.success("文件下载成功");
    })
    .catch((err) => {
      Message.error("文件下载失败");
    })
    .finally(() => loadingMessage.close());
}