import { uniqBy } from "lodash-es";
import { ElMessage } from "element-plus";

/**
 * @param {Array} list - 需要检查重复项的目标数组
 * @param {string} key - 用于去重判断的对象属性名
 * @param {string} [message="存在重复项，请勿重复选择"] - 可选的错误提示信息
 * @returns {Promise<void>} 如果无重复项则 resolve，存在重复项时 reject 并提示错误
 */
export default function useIsExistenceDuplicateSelection(
  list,
  key,
  message = "存在重复项，请勿重复选择"
) {
  return new Promise((resolve, reject) => {
    const newList = uniqBy(list, key);
    if (newList.length !== list.length) {
      ElMessage.error(message);
      reject(new Error(message));
    } else {
      resolve();
    }
  });
}