import { request } from "@cqsjjb/jjb-common-lib/http";
import { useState } from "react";
import { UPLOAD_FILE_PATH_ENUM, UPLOAD_FILE_TYPE_ENUM } from "../../enum/uploadFile/gwj";

/**
 * 上传文件
 */
function useUploadFile(returnType = "object") {
  // loading状态
  const [loading, setLoading] = useState(false);

  // 上传文件
  const uploadFile = (options) => {
    if (!options)
      throw new Error("请传入 options");

    setLoading(true);

    return new Promise((resolve, reject) => {
      const { files, single = true, params } = options;

      if (!files)
        throw new Error("请传入 files");
      if (!params)
        throw new Error("请传入 options.params");
      if (!params.type)
        throw new Error("请传入 options.params.type");

      // 检查type是否在UPLOAD_FILE_TYPE_ENUM中
      if (!Object.values(UPLOAD_FILE_TYPE_ENUM).includes(params.type))
        throw new Error("传入的 type 不在 UPLOAD_FILE_TYPE_ENUM 中");

      // 根据type获取对应的path
      const path = UPLOAD_FILE_PATH_ENUM[params.type];
      if (!path)
        throw new Error(`未找到 type ${params.type} 对应的 path `);

      // 当single为false时，foreignKey是必需的
      if (!single && (params.foreignKey === undefined || params.foreignKey === null))
        throw new Error("请传入 options.params.foreignKey");

      const formData = new FormData();

      // 将文件添加到formData中
      files.forEach((f) => {
        f.originFileObj && formData.append("files", f.originFileObj);
      });

      // 将额外携带的参数添加到formData中
      Object.keys(params).forEach((key) => {
        formData.append(key, params[key]);
      });

      // 添加path参数
      formData.append("path", path);

      // 获取待上传的文件
      const filesLength = formData.getAll("files").length;

      // 如果没有文件则返回老文件
      if (filesLength === 0) {
        setLoading(false);
        resolve(
          single
            ? { filePath: files[0].filePath }
            : { id: params.foreignKey },
        );
        return;
      }

      // 发送请求
      request(
        single ? "/basic-info/imgFiles/save" : "/basic-info/imgFiles/batchSave",
        "post",
        formData,
        { "Content-Type": "multipart/form-data" },
      )
        .then((res) => {
          resolve(
            single
              ? { filePath: res.data.filePath }
              : { id: res.data.foreignKey },
          );
        })
        .catch((err) => {
          reject(err);
        })
        .finally(() => {
          setLoading(false);
        });
    });
  };

  if (returnType === "array")
    return [loading, uploadFile];
  return { loading, uploadFile };
}

export default useUploadFile;