import { request } from "@cqsjjb/jjb-common-lib/http.js";
import { useEffect, useState } from "react";
import { DICTIONARY_APP_KEY_ENUM } from "../../../enum/dictionary";
import BasicCascader from "../Basic";

// 全局缓存
const cacheMap = new Map();

/**
 * 数据字典级联组件
 */
function DictionaryCascader(props) {
  const {
    appKey = DICTIONARY_APP_KEY_ENUM.DEFAULT,
    dictValue = "",
    nameKey = "dictLabel",
    idKey = "dictValue",
    ...restProps
  } = props;

  const [treeData, setTreeData] = useState([]);

  const getData = async () => {
    setTreeData([]);

    if (!Object.values(DICTIONARY_APP_KEY_ENUM).includes(appKey)) {
      console.error(`【DictionaryCascader】 传入的 appKey 不在 DICTIONARY_APP_KEY_ENUM 中，当前传入的 appKey 是 ${appKey}`);
      return;
    }

    if (!dictValue) {
      console.error(`【DictionaryCascader】 缺少 dictValue 参数`);
      return;
    }

    // 生成缓存键
    const cacheKey = JSON.stringify({ appKey, dictValue });

    // 检查缓存，如果存在直接返回缓存结果
    if (cacheMap.has(cacheKey)) {
      setTreeData(cacheMap.get(cacheKey));
      return;
    }

    const { data } = await request("/config/dict-trees/list/by/dictValues", "get", { appKey, dictValue });

    // 存入缓存
    cacheMap.set(cacheKey, data);

    setTreeData(data);
  };

  useEffect(() => {
    getData();
  }, [dictValue]);

  return (
    <BasicCascader data={treeData} nameKey={nameKey} idKey={idKey} {...restProps} />
  );
}

DictionaryCascader.displayName = "DictionaryCascader";

export default DictionaryCascader;